templater: load and expand aliases by template engine (API) (issue4842)

Now template aliases are fully supported in log and formatter templates.

As I said before, aliases are not expanded in map files. This avoids possible
corruption of our stock styles and web templates. This behavior is undocumented
since no map file nor [templates] section are documented at all. Later on,
we might want to add [aliases] section to map files if it appears to be useful.

mercurial/formatter.py

@@ -1,221 +1,222 b''
 # formatter.py - generic output formatting for mercurial
 #
 # Copyright 2012 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import cPickle
 import os
 
 from .i18n import _
 from .node import (
     hex,
     short,
 )
 
 from . import (
     encoding,
     error,
     templater,
 )
 
 class baseformatter(object):
     def __init__(self, ui, topic, opts):
         self._ui = ui
         self._topic = topic
         self._style = opts.get("style")
         self._template = opts.get("template")
         self._item = None
         # function to convert node to string suitable for this output
         self.hexfunc = hex
     def __nonzero__(self):
         '''return False if we're not doing real templating so we can
         skip extra work'''
         return True
     def _showitem(self):
         '''show a formatted item once all data is collected'''
         pass
     def startitem(self):
         '''begin an item in the format list'''
         if self._item is not None:
             self._showitem()
         self._item = {}
     def data(self, **data):
         '''insert data into item that's not shown in default output'''
         self._item.update(data)
     def write(self, fields, deftext, *fielddata, **opts):
         '''do default text output while assigning data to item'''
         fieldkeys = fields.split()
         assert len(fieldkeys) == len(fielddata)
         self._item.update(zip(fieldkeys, fielddata))
     def condwrite(self, cond, fields, deftext, *fielddata, **opts):
         '''do conditional write (primarily for plain formatter)'''
         fieldkeys = fields.split()
         assert len(fieldkeys) == len(fielddata)
         self._item.update(zip(fieldkeys, fielddata))
     def plain(self, text, **opts):
         '''show raw text for non-templated mode'''
         pass
     def end(self):
         '''end output for the formatter'''
         if self._item is not None:
             self._showitem()
 
 class plainformatter(baseformatter):
     '''the default text output scheme'''
     def __init__(self, ui, topic, opts):
         baseformatter.__init__(self, ui, topic, opts)
         if ui.debugflag:
             self.hexfunc = hex
         else:
             self.hexfunc = short
     def __nonzero__(self):
         return False
     def startitem(self):
         pass
     def data(self, **data):
         pass
     def write(self, fields, deftext, *fielddata, **opts):
         self._ui.write(deftext % fielddata, **opts)
     def condwrite(self, cond, fields, deftext, *fielddata, **opts):
         '''do conditional write'''
         if cond:
             self._ui.write(deftext % fielddata, **opts)
     def plain(self, text, **opts):
         self._ui.write(text, **opts)
     def end(self):
         pass
 
 class debugformatter(baseformatter):
     def __init__(self, ui, topic, opts):
         baseformatter.__init__(self, ui, topic, opts)
         self._ui.write("%s = [\n" % self._topic)
     def _showitem(self):
         self._ui.write("    " + repr(self._item) + ",\n")
     def end(self):
         baseformatter.end(self)
         self._ui.write("]\n")
 
 class pickleformatter(baseformatter):
     def __init__(self, ui, topic, opts):
         baseformatter.__init__(self, ui, topic, opts)
         self._data = []
     def _showitem(self):
         self._data.append(self._item)
     def end(self):
         baseformatter.end(self)
         self._ui.write(cPickle.dumps(self._data))
 
 def _jsonifyobj(v):
     if isinstance(v, tuple):
         return '[' + ', '.join(_jsonifyobj(e) for e in v) + ']'
     elif v is None:
         return 'null'
     elif v is True:
         return 'true'
     elif v is False:
         return 'false'
     elif isinstance(v, (int, float)):
         return str(v)
     else:
         return '"%s"' % encoding.jsonescape(v)
 
 class jsonformatter(baseformatter):
     def __init__(self, ui, topic, opts):
         baseformatter.__init__(self, ui, topic, opts)
         self._ui.write("[")
         self._ui._first = True
     def _showitem(self):
         if self._ui._first:
             self._ui._first = False
         else:
             self._ui.write(",")
 
         self._ui.write("\n {\n")
         first = True
         for k, v in sorted(self._item.items()):
             if first:
                 first = False
             else:
                 self._ui.write(",\n")
             self._ui.write('  "%s": %s' % (k, _jsonifyobj(v)))
         self._ui.write("\n }")
     def end(self):
         baseformatter.end(self)
         self._ui.write("\n]\n")
 
 class templateformatter(baseformatter):
     def __init__(self, ui, topic, opts):
         baseformatter.__init__(self, ui, topic, opts)
         self._topic = topic
         self._t = gettemplater(ui, topic, opts.get('template', ''))
     def _showitem(self):
         g = self._t(self._topic, ui=self._ui, **self._item)
         self._ui.write(templater.stringify(g))
 
 def lookuptemplate(ui, topic, tmpl):
     # looks like a literal template?
     if '{' in tmpl:
         return tmpl, None
 
     # perhaps a stock style?
     if not os.path.split(tmpl)[0]:
         mapname = (templater.templatepath('map-cmdline.' + tmpl)
                    or templater.templatepath(tmpl))
         if mapname and os.path.isfile(mapname):
             return None, mapname
 
     # perhaps it's a reference to [templates]
     t = ui.config('templates', tmpl)
     if t:
         return templater.unquotestring(t), None
 
     if tmpl == 'list':
         ui.write(_("available styles: %s\n") % templater.stylelist())
         raise error.Abort(_("specify a template"))
 
     # perhaps it's a path to a map or a template
     if ('/' in tmpl or '\\' in tmpl) and os.path.isfile(tmpl):
         # is it a mapfile for a style?
         if os.path.basename(tmpl).startswith("map-"):
             return None, os.path.realpath(tmpl)
         tmpl = open(tmpl).read()
         return tmpl, None
 
     # constant string?
     return tmpl, None
 
 def gettemplater(ui, topic, spec):
     tmpl, mapfile = lookuptemplate(ui, topic, spec)
     assert not (tmpl and mapfile)
     if mapfile:
         return templater.templater.frommapfile(mapfile)
     return maketemplater(ui, topic, tmpl)
 
 def maketemplater(ui, topic, tmpl, filters=None, cache=None):
     """Create a templater from a string template 'tmpl'"""
-    t = templater.templater(filters=filters, cache=cache)
+    aliases = ui.configitems('templatealias')
+    t = templater.templater(filters=filters, cache=cache, aliases=aliases)
     if tmpl:
         t.cache[topic] = tmpl
     return t
 
 def formatter(ui, topic, opts):
     template = opts.get("template", "")
     if template == "json":
         return jsonformatter(ui, topic, opts)
     elif template == "pickle":
         return pickleformatter(ui, topic, opts)
     elif template == "debug":
         return debugformatter(ui, topic, opts)
     elif template != "":
         return templateformatter(ui, topic, opts)
     # developer config: ui.formatdebug
     elif ui.configbool('ui', 'formatdebug'):
         return debugformatter(ui, topic, opts)
     # deprecated config: ui.formatjson
     elif ui.configbool('ui', 'formatjson'):
         return jsonformatter(ui, topic, opts)
     return plainformatter(ui, topic, opts)

mercurial/help/config.txt

@@ -1,2071 +1,2076 b''
 The Mercurial system uses a set of configuration files to control
 aspects of its behavior.
 
 Troubleshooting
 ===============
 
 If you're having problems with your configuration,
 :hg:`config --debug` can help you understand what is introducing
 a setting into your environment.
 
 See :hg:`help config.syntax` and :hg:`help config.files`
 for information about how and where to override things.
 
 Structure
 =========
 
 The configuration files use a simple ini-file format. A configuration
 file consists of sections, led by a ``[section]`` header and followed
 by ``name = value`` entries::
 
   [ui]
   username = Firstname Lastname <[e-mail]>
   verbose = True
 
 The above entries will be referred to as ``ui.username`` and
 ``ui.verbose``, respectively. See :hg:`help config.syntax`.
 
 Files
 =====
 
 Mercurial reads configuration data from several files, if they exist.
 These files do not exist by default and you will have to create the
 appropriate configuration files yourself:
 
 Local configuration is put into the per-repository ``<repo>/.hg/hgrc`` file.
 
 Global configuration like the username setting is typically put into:
 
 .. container:: windows
 
   - ``%USERPROFILE%\mercurial.ini`` (on Windows)
 
 .. container:: unix.plan9
 
   - ``$HOME/.hgrc`` (on Unix, Plan9)
 
 The names of these files depend on the system on which Mercurial is
 installed. ``*.rc`` files from a single directory are read in
 alphabetical order, later ones overriding earlier ones. Where multiple
 paths are given below, settings from earlier paths override later
 ones.
 
 .. container:: verbose.unix
 
   On Unix, the following files are consulted:
 
   - ``<repo>/.hg/hgrc`` (per-repository)
   - ``$HOME/.hgrc`` (per-user)
   - ``<install-root>/etc/mercurial/hgrc`` (per-installation)
   - ``<install-root>/etc/mercurial/hgrc.d/*.rc`` (per-installation)
   - ``/etc/mercurial/hgrc`` (per-system)
   - ``/etc/mercurial/hgrc.d/*.rc`` (per-system)
   - ``<internal>/default.d/*.rc`` (defaults)
 
 .. container:: verbose.windows
 
   On Windows, the following files are consulted:
 
   - ``<repo>/.hg/hgrc`` (per-repository)
   - ``%USERPROFILE%\.hgrc`` (per-user)
   - ``%USERPROFILE%\Mercurial.ini`` (per-user)
   - ``%HOME%\.hgrc`` (per-user)
   - ``%HOME%\Mercurial.ini`` (per-user)
   - ``HKEY_LOCAL_MACHINE\SOFTWARE\Mercurial`` (per-installation)
   - ``<install-dir>\hgrc.d\*.rc`` (per-installation)
   - ``<install-dir>\Mercurial.ini`` (per-installation)
   - ``<internal>/default.d/*.rc`` (defaults)
 
   .. note::
 
    The registry key ``HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mercurial``
    is used when running 32-bit Python on 64-bit Windows.
 
 .. container:: windows
 
   On Windows 9x, ``%HOME%`` is replaced by ``%APPDATA%``.
 
 .. container:: verbose.plan9
 
   On Plan9, the following files are consulted:
 
   - ``<repo>/.hg/hgrc`` (per-repository)
   - ``$home/lib/hgrc`` (per-user)
   - ``<install-root>/lib/mercurial/hgrc`` (per-installation)
   - ``<install-root>/lib/mercurial/hgrc.d/*.rc`` (per-installation)
   - ``/lib/mercurial/hgrc`` (per-system)
   - ``/lib/mercurial/hgrc.d/*.rc`` (per-system)
   - ``<internal>/default.d/*.rc`` (defaults)
 
 Per-repository configuration options only apply in a
 particular repository. This file is not version-controlled, and
 will not get transferred during a "clone" operation. Options in
 this file override options in all other configuration files.
 
 .. container:: unix.plan9
 
   On Plan 9 and Unix, most of this file will be ignored if it doesn't
   belong to a trusted user or to a trusted group. See
   :hg:`help config.trusted` for more details.
 
 Per-user configuration file(s) are for the user running Mercurial.  Options
 in these files apply to all Mercurial commands executed by this user in any
 directory. Options in these files override per-system and per-installation
 options.
 
 Per-installation configuration files are searched for in the
 directory where Mercurial is installed. ``<install-root>`` is the
 parent directory of the **hg** executable (or symlink) being run.
 
 .. container:: unix.plan9
 
   For example, if installed in ``/shared/tools/bin/hg``, Mercurial
   will look in ``/shared/tools/etc/mercurial/hgrc``. Options in these
   files apply to all Mercurial commands executed by any user in any
   directory.
 
 Per-installation configuration files are for the system on
 which Mercurial is running. Options in these files apply to all
 Mercurial commands executed by any user in any directory. Registry
 keys contain PATH-like strings, every part of which must reference
 a ``Mercurial.ini`` file or be a directory where ``*.rc`` files will
 be read.  Mercurial checks each of these locations in the specified
 order until one or more configuration files are detected.
 
 Per-system configuration files are for the system on which Mercurial
 is running. Options in these files apply to all Mercurial commands
 executed by any user in any directory. Options in these files
 override per-installation options.
 
 Mercurial comes with some default configuration. The default configuration
 files are installed with Mercurial and will be overwritten on upgrades. Default
 configuration files should never be edited by users or administrators but can
 be overridden in other configuration files. So far the directory only contains
 merge tool configuration but packagers can also put other default configuration
 there.
 
 Syntax
 ======
 
 A configuration file consists of sections, led by a ``[section]`` header
 and followed by ``name = value`` entries (sometimes called
 ``configuration keys``)::
 
     [spam]
     eggs=ham
     green=
        eggs
 
 Each line contains one entry. If the lines that follow are indented,
 they are treated as continuations of that entry. Leading whitespace is
 removed from values. Empty lines are skipped. Lines beginning with
 ``#`` or ``;`` are ignored and may be used to provide comments.
 
 Configuration keys can be set multiple times, in which case Mercurial
 will use the value that was configured last. As an example::
 
     [spam]
     eggs=large
     ham=serrano
     eggs=small
 
 This would set the configuration key named ``eggs`` to ``small``.
 
 It is also possible to define a section multiple times. A section can
 be redefined on the same and/or on different configuration files. For
 example::
 
     [foo]
     eggs=large
     ham=serrano
     eggs=small
 
     [bar]
     eggs=ham
     green=
        eggs
 
     [foo]
     ham=prosciutto
     eggs=medium
     bread=toasted
 
 This would set the ``eggs``, ``ham``, and ``bread`` configuration keys
 of the ``foo`` section to ``medium``, ``prosciutto``, and ``toasted``,
 respectively. As you can see there only thing that matters is the last
 value that was set for each of the configuration keys.
 
 If a configuration key is set multiple times in different
 configuration files the final value will depend on the order in which
 the different configuration files are read, with settings from earlier
 paths overriding later ones as described on the ``Files`` section
 above.
 
 A line of the form ``%include file`` will include ``file`` into the
 current configuration file. The inclusion is recursive, which means
 that included files can include other files. Filenames are relative to
 the configuration file in which the ``%include`` directive is found.
 Environment variables and ``~user`` constructs are expanded in
 ``file``. This lets you do something like::
 
   %include ~/.hgrc.d/$HOST.rc
 
 to include a different configuration file on each computer you use.
 
 A line with ``%unset name`` will remove ``name`` from the current
 section, if it has been set previously.
 
 The values are either free-form text strings, lists of text strings,
 or Boolean values. Boolean values can be set to true using any of "1",
 "yes", "true", or "on" and to false using "0", "no", "false", or "off"
 (all case insensitive).
 
 List values are separated by whitespace or comma, except when values are
 placed in double quotation marks::
 
   allow_read = "John Doe, PhD", brian, betty
 
 Quotation marks can be escaped by prefixing them with a backslash. Only
 quotation marks at the beginning of a word is counted as a quotation
 (e.g., ``foo"bar baz`` is the list of ``foo"bar`` and ``baz``).
 
 Sections
 ========
 
 This section describes the different sections that may appear in a
 Mercurial configuration file, the purpose of each section, its possible
 keys, and their possible values.
 
 ``alias``
 ---------
 
 Defines command aliases.
 
 Aliases allow you to define your own commands in terms of other
 commands (or aliases), optionally including arguments. Positional
 arguments in the form of ``$1``, ``$2``, etc. in the alias definition
 are expanded by Mercurial before execution. Positional arguments not
 already used by ``$N`` in the definition are put at the end of the
 command to be executed.
 
 Alias definitions consist of lines of the form::
 
     <alias> = <command> [<argument>]...
 
 For example, this definition::
 
     latest = log --limit 5
 
 creates a new command ``latest`` that shows only the five most recent
 changesets. You can define subsequent aliases using earlier ones::
 
     stable5 = latest -b stable
 
 .. note::
 
    It is possible to create aliases with the same names as
    existing commands, which will then override the original
    definitions. This is almost always a bad idea!
 
 An alias can start with an exclamation point (``!``) to make it a
 shell alias. A shell alias is executed with the shell and will let you
 run arbitrary commands. As an example, ::
 
    echo = !echo $@
 
 will let you do ``hg echo foo`` to have ``foo`` printed in your
 terminal. A better example might be::
 
    purge = !$HG status --no-status --unknown -0 re: | xargs -0 rm
 
 which will make ``hg purge`` delete all unknown files in the
 repository in the same manner as the purge extension.
 
 Positional arguments like ``$1``, ``$2``, etc. in the alias definition
 expand to the command arguments. Unmatched arguments are
 removed. ``$0`` expands to the alias name and ``$@`` expands to all
 arguments separated by a space. ``"$@"`` (with quotes) expands to all
 arguments quoted individually and separated by a space. These expansions
 happen before the command is passed to the shell.
 
 Shell aliases are executed in an environment where ``$HG`` expands to
 the path of the Mercurial that was used to execute the alias. This is
 useful when you want to call further Mercurial commands in a shell
 alias, as was done above for the purge alias. In addition,
 ``$HG_ARGS`` expands to the arguments given to Mercurial. In the ``hg
 echo foo`` call above, ``$HG_ARGS`` would expand to ``echo foo``.
 
 .. note::
 
    Some global configuration options such as ``-R`` are
    processed before shell aliases and will thus not be passed to
    aliases.
 
 
 ``annotate``
 ------------
 
 Settings used when displaying file annotations. All values are
 Booleans and default to False. See :hg:`help config.diff` for
 related options for the diff command.
 
 ``ignorews``
     Ignore white space when comparing lines.
 
 ``ignorewsamount``
     Ignore changes in the amount of white space.
 
 ``ignoreblanklines``
     Ignore changes whose lines are all blank.
 
 
 ``auth``
 --------
 
 Authentication credentials for HTTP authentication. This section
 allows you to store usernames and passwords for use when logging
 *into* HTTP servers. See :hg:`help config.web` if
 you want to configure *who* can login to your HTTP server.
 
 Each line has the following format::
 
     <name>.<argument> = <value>
 
 where ``<name>`` is used to group arguments into authentication
 entries. Example::
 
     foo.prefix = hg.intevation.de/mercurial
     foo.username = foo
     foo.password = bar
     foo.schemes = http https
 
     bar.prefix = secure.example.org
     bar.key = path/to/file.key
     bar.cert = path/to/file.cert
     bar.schemes = https
 
 Supported arguments:
 
 ``prefix``
     Either ``*`` or a URI prefix with or without the scheme part.
     The authentication entry with the longest matching prefix is used
     (where ``*`` matches everything and counts as a match of length
     1). If the prefix doesn't include a scheme, the match is performed
     against the URI with its scheme stripped as well, and the schemes
     argument, q.v., is then subsequently consulted.
 
 ``username``
     Optional. Username to authenticate with. If not given, and the
     remote site requires basic or digest authentication, the user will
     be prompted for it. Environment variables are expanded in the
     username letting you do ``foo.username = $USER``. If the URI
     includes a username, only ``[auth]`` entries with a matching
     username or without a username will be considered.
 
 ``password``
     Optional. Password to authenticate with. If not given, and the
     remote site requires basic or digest authentication, the user
     will be prompted for it.
 
 ``key``
     Optional. PEM encoded client certificate key file. Environment
     variables are expanded in the filename.
 
 ``cert``
     Optional. PEM encoded client certificate chain file. Environment
     variables are expanded in the filename.
 
 ``schemes``
     Optional. Space separated list of URI schemes to use this
     authentication entry with. Only used if the prefix doesn't include
     a scheme. Supported schemes are http and https. They will match
     static-http and static-https respectively, as well.
     (default: https)
 
 If no suitable authentication entry is found, the user is prompted
 for credentials as usual if required by the remote.
 
 
 ``committemplate``
 ------------------
 
 ``changeset``
     String: configuration in this section is used as the template to
     customize the text shown in the editor when committing.
 
 In addition to pre-defined template keywords, commit log specific one
 below can be used for customization:
 
 ``extramsg``
     String: Extra message (typically 'Leave message empty to abort
     commit.'). This may be changed by some commands or extensions.
 
 For example, the template configuration below shows as same text as
 one shown by default::
 
     [committemplate]
     changeset = {desc}\n\n
         HG: Enter commit message.  Lines beginning with 'HG:' are removed.
         HG: {extramsg}
         HG: --
         HG: user: {author}\n{ifeq(p2rev, "-1", "",
        "HG: branch merge\n")
        }HG: branch '{branch}'\n{if(activebookmark,
        "HG: bookmark '{activebookmark}'\n")   }{subrepos %
        "HG: subrepo {subrepo}\n"              }{file_adds %
        "HG: added {file}\n"                   }{file_mods %
        "HG: changed {file}\n"                 }{file_dels %
        "HG: removed {file}\n"                 }{if(files, "",
        "HG: no files changed\n")}
 
 .. note::
 
    For some problematic encodings (see :hg:`help win32mbcs` for
    detail), this customization should be configured carefully, to
    avoid showing broken characters.
 
    For example, if a multibyte character ending with backslash (0x5c) is
    followed by the ASCII character 'n' in the customized template,
    the sequence of backslash and 'n' is treated as line-feed unexpectedly
    (and the multibyte character is broken, too).
 
 Customized template is used for commands below (``--edit`` may be
 required):
 
 - :hg:`backout`
 - :hg:`commit`
 - :hg:`fetch` (for merge commit only)
 - :hg:`graft`
 - :hg:`histedit`
 - :hg:`import`
 - :hg:`qfold`, :hg:`qnew` and :hg:`qrefresh`
 - :hg:`rebase`
 - :hg:`shelve`
 - :hg:`sign`
 - :hg:`tag`
 - :hg:`transplant`
 
 Configuring items below instead of ``changeset`` allows showing
 customized message only for specific actions, or showing different
 messages for each action.
 
 - ``changeset.backout`` for :hg:`backout`
 - ``changeset.commit.amend.merge`` for :hg:`commit --amend` on merges
 - ``changeset.commit.amend.normal`` for :hg:`commit --amend` on other
 - ``changeset.commit.normal.merge`` for :hg:`commit` on merges
 - ``changeset.commit.normal.normal`` for :hg:`commit` on other
 - ``changeset.fetch`` for :hg:`fetch` (impling merge commit)
 - ``changeset.gpg.sign`` for :hg:`sign`
 - ``changeset.graft`` for :hg:`graft`
 - ``changeset.histedit.edit`` for ``edit`` of :hg:`histedit`
 - ``changeset.histedit.fold`` for ``fold`` of :hg:`histedit`
 - ``changeset.histedit.mess`` for ``mess`` of :hg:`histedit`
 - ``changeset.histedit.pick`` for ``pick`` of :hg:`histedit`
 - ``changeset.import.bypass`` for :hg:`import --bypass`
 - ``changeset.import.normal.merge`` for :hg:`import` on merges
 - ``changeset.import.normal.normal`` for :hg:`import` on other
 - ``changeset.mq.qnew`` for :hg:`qnew`
 - ``changeset.mq.qfold`` for :hg:`qfold`
 - ``changeset.mq.qrefresh`` for :hg:`qrefresh`
 - ``changeset.rebase.collapse`` for :hg:`rebase --collapse`
 - ``changeset.rebase.merge`` for :hg:`rebase` on merges
 - ``changeset.rebase.normal`` for :hg:`rebase` on other
 - ``changeset.shelve.shelve`` for :hg:`shelve`
 - ``changeset.tag.add`` for :hg:`tag` without ``--remove``
 - ``changeset.tag.remove`` for :hg:`tag --remove`
 - ``changeset.transplant.merge`` for :hg:`transplant` on merges
 - ``changeset.transplant.normal`` for :hg:`transplant` on other
 
 These dot-separated lists of names are treated as hierarchical ones.
 For example, ``changeset.tag.remove`` customizes the commit message
 only for :hg:`tag --remove`, but ``changeset.tag`` customizes the
 commit message for :hg:`tag` regardless of ``--remove`` option.
 
 When the external editor is invoked for a commit, the corresponding
 dot-separated list of names without the ``changeset.`` prefix
 (e.g. ``commit.normal.normal``) is in the ``HGEDITFORM`` environment
 variable.
 
 In this section, items other than ``changeset`` can be referred from
 others. For example, the configuration to list committed files up
 below can be referred as ``{listupfiles}``::
 
     [committemplate]
     listupfiles = {file_adds %
        "HG: added {file}\n"     }{file_mods %
        "HG: changed {file}\n"   }{file_dels %
        "HG: removed {file}\n"   }{if(files, "",
        "HG: no files changed\n")}
 
 ``decode/encode``
 -----------------
 
 Filters for transforming files on checkout/checkin. This would
 typically be used for newline processing or other
 localization/canonicalization of files.
 
 Filters consist of a filter pattern followed by a filter command.
 Filter patterns are globs by default, rooted at the repository root.
 For example, to match any file ending in ``.txt`` in the root
 directory only, use the pattern ``*.txt``. To match any file ending
 in ``.c`` anywhere in the repository, use the pattern ``**.c``.
 For each file only the first matching filter applies.
 
 The filter command can start with a specifier, either ``pipe:`` or
 ``tempfile:``. If no specifier is given, ``pipe:`` is used by default.
 
 A ``pipe:`` command must accept data on stdin and return the transformed
 data on stdout.
 
 Pipe example::
 
   [encode]
   # uncompress gzip files on checkin to improve delta compression
   # note: not necessarily a good idea, just an example
   *.gz = pipe: gunzip
 
   [decode]
   # recompress gzip files when writing them to the working dir (we
   # can safely omit "pipe:", because it's the default)
   *.gz = gzip
 
 A ``tempfile:`` command is a template. The string ``INFILE`` is replaced
 with the name of a temporary file that contains the data to be
 filtered by the command. The string ``OUTFILE`` is replaced with the name
 of an empty temporary file, where the filtered data must be written by
 the command.
 
 .. container:: windows
 
    .. note::
 
      The tempfile mechanism is recommended for Windows systems,
      where the standard shell I/O redirection operators often have
      strange effects and may corrupt the contents of your files.
 
 This filter mechanism is used internally by the ``eol`` extension to
 translate line ending characters between Windows (CRLF) and Unix (LF)
 format. We suggest you use the ``eol`` extension for convenience.
 
 
 ``defaults``
 ------------
 
 (defaults are deprecated. Don't use them. Use aliases instead.)
 
 Use the ``[defaults]`` section to define command defaults, i.e. the
 default options/arguments to pass to the specified commands.
 
 The following example makes :hg:`log` run in verbose mode, and
 :hg:`status` show only the modified files, by default::
 
   [defaults]
   log = -v
   status = -m
 
 The actual commands, instead of their aliases, must be used when
 defining command defaults. The command defaults will also be applied
 to the aliases of the commands defined.
 
 
 ``diff``
 --------
 
 Settings used when displaying diffs. Everything except for ``unified``
 is a Boolean and defaults to False. See :hg:`help config.annotate`
 for related options for the annotate command.
 
 ``git``
     Use git extended diff format.
 
 ``nobinary``
     Omit git binary patches.
 
 ``nodates``
     Don't include dates in diff headers.
 
 ``noprefix``
     Omit 'a/' and 'b/' prefixes from filenames. Ignored in plain mode.
 
 ``showfunc``
     Show which function each change is in.
 
 ``ignorews``
     Ignore white space when comparing lines.
 
 ``ignorewsamount``
     Ignore changes in the amount of white space.
 
 ``ignoreblanklines``
     Ignore changes whose lines are all blank.
 
 ``unified``
     Number of lines of context to show.
 
 ``email``
 ---------
 
 Settings for extensions that send email messages.
 
 ``from``
     Optional. Email address to use in "From" header and SMTP envelope
     of outgoing messages.
 
 ``to``
     Optional. Comma-separated list of recipients' email addresses.
 
 ``cc``
     Optional. Comma-separated list of carbon copy recipients'
     email addresses.
 
 ``bcc``
     Optional. Comma-separated list of blind carbon copy recipients'
     email addresses.
 
 ``method``
     Optional. Method to use to send email messages. If value is ``smtp``
     (default), use SMTP (see the ``[smtp]`` section for configuration).
     Otherwise, use as name of program to run that acts like sendmail
     (takes ``-f`` option for sender, list of recipients on command line,
     message on stdin). Normally, setting this to ``sendmail`` or
     ``/usr/sbin/sendmail`` is enough to use sendmail to send messages.
 
 ``charsets``
     Optional. Comma-separated list of character sets considered
     convenient for recipients. Addresses, headers, and parts not
     containing patches of outgoing messages will be encoded in the
     first character set to which conversion from local encoding
     (``$HGENCODING``, ``ui.fallbackencoding``) succeeds. If correct
     conversion fails, the text in question is sent as is.
     (default: '')
 
     Order of outgoing email character sets:
 
     1. ``us-ascii``: always first, regardless of settings
     2. ``email.charsets``: in order given by user
     3. ``ui.fallbackencoding``: if not in email.charsets
     4. ``$HGENCODING``: if not in email.charsets
     5. ``utf-8``: always last, regardless of settings
 
 Email example::
 
   [email]
   from = Joseph User <[e-mail]>
   method = /usr/sbin/sendmail
   # charsets for western Europeans
   # us-ascii, utf-8 omitted, as they are tried first and last
   charsets = iso-8859-1, iso-8859-15, windows-1252
 
 
 ``extensions``
 --------------
 
 Mercurial has an extension mechanism for adding new features. To
 enable an extension, create an entry for it in this section.
 
 If you know that the extension is already in Python's search path,
 you can give the name of the module, followed by ``=``, with nothing
 after the ``=``.
 
 Otherwise, give a name that you choose, followed by ``=``, followed by
 the path to the ``.py`` file (including the file name extension) that
 defines the extension.
 
 To explicitly disable an extension that is enabled in an hgrc of
 broader scope, prepend its path with ``!``, as in ``foo = !/ext/path``
 or ``foo = !`` when path is not supplied.
 
 Example for ``~/.hgrc``::
 
   [extensions]
   # (the color extension will get loaded from Mercurial's path)
   color =
   # (this extension will get loaded from the file specified)
   myfeature = ~/.hgext/myfeature.py
 
 
 ``format``
 ----------
 
 ``usegeneraldelta``
     Enable or disable the "generaldelta" repository format which improves
     repository compression by allowing "revlog" to store delta against arbitrary
     revision instead of the previous stored one. This provides significant
     improvement for repositories with branches.
 
     Repositories with this on-disk format require Mercurial version 1.9.
 
     Enabled by default.
 
 ``dotencode``
     Enable or disable the "dotencode" repository format which enhances
     the "fncache" repository format (which has to be enabled to use
     dotencode) to avoid issues with filenames starting with ._ on
     Mac OS X and spaces on Windows.
 
     Repositories with this on-disk format require Mercurial version 1.7.
 
     Enabled by default.
 
 ``usefncache``
     Enable or disable the "fncache" repository format which enhances
     the "store" repository format (which has to be enabled to use
     fncache) to allow longer filenames and avoids using Windows
     reserved names, e.g. "nul".
 
     Repositories with this on-disk format require Mercurial version 1.1.
 
     Enabled by default.
 
 ``usestore``
     Enable or disable the "store" repository format which improves
     compatibility with systems that fold case or otherwise mangle
     filenames. Disabling this option will allow you to store longer filenames
     in some situations at the expense of compatibility.
 
     Repositories with this on-disk format require Mercurial version 0.9.4.
 
     Enabled by default.
 
 ``graph``
 ---------
 
 Web graph view configuration. This section let you change graph
 elements display properties by branches, for instance to make the
 ``default`` branch stand out.
 
 Each line has the following format::
 
     <branch>.<argument> = <value>
 
 where ``<branch>`` is the name of the branch being
 customized. Example::
 
     [graph]
     # 2px width
     default.width = 2
     # red color
     default.color = FF0000
 
 Supported arguments:
 
 ``width``
     Set branch edges width in pixels.
 
 ``color``
     Set branch edges color in hexadecimal RGB notation.
 
 ``hooks``
 ---------
 
 Commands or Python functions that get automatically executed by
 various actions such as starting or finishing a commit. Multiple
 hooks can be run for the same action by appending a suffix to the
 action. Overriding a site-wide hook can be done by changing its
 value or setting it to an empty string.  Hooks can be prioritized
 by adding a prefix of ``priority.`` to the hook name on a new line
 and setting the priority. The default priority is 0.
 
 Example ``.hg/hgrc``::
 
   [hooks]
   # update working directory after adding changesets
   changegroup.update = hg update
   # do not use the site-wide hook
   incoming =
   incoming.email = /my/email/hook
   incoming.autobuild = /my/build/hook
   # force autobuild hook to run before other incoming hooks
   priority.incoming.autobuild = 1
 
 Most hooks are run with environment variables set that give useful
 additional information. For each hook below, the environment
 variables it is passed are listed with names of the form ``$HG_foo``.
 
 ``changegroup``
   Run after a changegroup has been added via push, pull or unbundle.  ID of the
   first new changeset is in ``$HG_NODE`` and last in ``$HG_NODE_LAST``. URL
   from which changes came is in ``$HG_URL``.
 
 ``commit``
   Run after a changeset has been created in the local repository. ID
   of the newly created changeset is in ``$HG_NODE``. Parent changeset
   IDs are in ``$HG_PARENT1`` and ``$HG_PARENT2``.
 
 ``incoming``
   Run after a changeset has been pulled, pushed, or unbundled into
   the local repository. The ID of the newly arrived changeset is in
   ``$HG_NODE``. URL that was source of changes came is in ``$HG_URL``.
 
 ``outgoing``
   Run after sending changes from local repository to another. ID of
   first changeset sent is in ``$HG_NODE``. Source of operation is in
   ``$HG_SOURCE``; Also see :hg:`help config.hooks.preoutgoing` hook.
 
 ``post-<command>``
   Run after successful invocations of the associated command. The
   contents of the command line are passed as ``$HG_ARGS`` and the result
   code in ``$HG_RESULT``. Parsed command line arguments are passed as
   ``$HG_PATS`` and ``$HG_OPTS``. These contain string representations of
   the python data internally passed to <command>. ``$HG_OPTS`` is a
   dictionary of options (with unspecified options set to their defaults).
   ``$HG_PATS`` is a list of arguments. Hook failure is ignored.
 
 ``pre-<command>``
   Run before executing the associated command. The contents of the
   command line are passed as ``$HG_ARGS``. Parsed command line arguments
   are passed as ``$HG_PATS`` and ``$HG_OPTS``. These contain string
   representations of the data internally passed to <command>. ``$HG_OPTS``
   is a dictionary of options (with unspecified options set to their
   defaults). ``$HG_PATS`` is a list of arguments. If the hook returns
   failure, the command doesn't execute and Mercurial returns the failure
   code.
 
 ``prechangegroup``
   Run before a changegroup is added via push, pull or unbundle. Exit
   status 0 allows the changegroup to proceed. Non-zero status will
   cause the push, pull or unbundle to fail. URL from which changes
   will come is in ``$HG_URL``.
 
 ``precommit``
   Run before starting a local commit. Exit status 0 allows the
   commit to proceed. Non-zero status will cause the commit to fail.
   Parent changeset IDs are in ``$HG_PARENT1`` and ``$HG_PARENT2``.
 
 ``prelistkeys``
   Run before listing pushkeys (like bookmarks) in the
   repository. Non-zero status will cause failure. The key namespace is
   in ``$HG_NAMESPACE``.
 
 ``preoutgoing``
   Run before collecting changes to send from the local repository to
   another. Non-zero status will cause failure. This lets you prevent
   pull over HTTP or SSH. Also prevents against local pull, push
   (outbound) or bundle commands, but not effective, since you can
   just copy files instead then. Source of operation is in
   ``$HG_SOURCE``. If "serve", operation is happening on behalf of remote
   SSH or HTTP repository. If "push", "pull" or "bundle", operation
   is happening on behalf of repository on same system.
 
 ``prepushkey``
   Run before a pushkey (like a bookmark) is added to the
   repository. Non-zero status will cause the key to be rejected. The
   key namespace is in ``$HG_NAMESPACE``, the key is in ``$HG_KEY``,
   the old value (if any) is in ``$HG_OLD``, and the new value is in
   ``$HG_NEW``.
 
 ``pretag``
   Run before creating a tag. Exit status 0 allows the tag to be
   created. Non-zero status will cause the tag to fail. ID of
   changeset to tag is in ``$HG_NODE``. Name of tag is in ``$HG_TAG``. Tag is
   local if ``$HG_LOCAL=1``, in repository if ``$HG_LOCAL=0``.
 
 ``pretxnopen``
   Run before any new repository transaction is open. The reason for the
   transaction will be in ``$HG_TXNNAME`` and a unique identifier for the
   transaction will be in ``HG_TXNID``. A non-zero status will prevent the
   transaction from being opened.
 
 ``pretxnclose``
   Run right before the transaction is actually finalized. Any repository change
   will be visible to the hook program. This lets you validate the transaction
   content or change it. Exit status 0 allows the commit to proceed. Non-zero
   status will cause the transaction to be rolled back. The reason for the
   transaction opening will be in ``$HG_TXNNAME`` and a unique identifier for
   the transaction will be in ``HG_TXNID``. The rest of the available data will
   vary according the transaction type. New changesets will add ``$HG_NODE`` (id
   of the first added changeset), ``$HG_NODE_LAST`` (id of the last added
   changeset), ``$HG_URL`` and ``$HG_SOURCE`` variables, bookmarks and phases
   changes will set ``HG_BOOKMARK_MOVED`` and ``HG_PHASES_MOVED`` to ``1``, etc.
 
 ``txnclose``
   Run after any repository transaction has been committed. At this
   point, the transaction can no longer be rolled back. The hook will run
   after the lock is released. See :hg:`help config.hooks.pretxnclose` docs for
   details about available variables.
 
 ``txnabort``
   Run when a transaction is aborted. See :hg:`help config.hooks.pretxnclose`
   docs for details about available variables.
 
 ``pretxnchangegroup``
   Run after a changegroup has been added via push, pull or unbundle, but before
   the transaction has been committed. Changegroup is visible to hook program.
   This lets you validate incoming changes before accepting them. Passed the ID
   of the first new changeset in ``$HG_NODE`` and last in ``$HG_NODE_LAST``.
   Exit status 0 allows the transaction to commit. Non-zero status will cause
   the transaction to be rolled back and the push, pull or unbundle will fail.
   URL that was source of changes is in ``$HG_URL``.
 
 ``pretxncommit``
   Run after a changeset has been created but the transaction not yet
   committed. Changeset is visible to hook program. This lets you
   validate commit message and changes. Exit status 0 allows the
   commit to proceed. Non-zero status will cause the transaction to
   be rolled back. ID of changeset is in ``$HG_NODE``. Parent changeset
   IDs are in ``$HG_PARENT1`` and ``$HG_PARENT2``.
 
 ``preupdate``
   Run before updating the working directory. Exit status 0 allows
   the update to proceed. Non-zero status will prevent the update.
   Changeset ID of first new parent is in ``$HG_PARENT1``. If merge, ID
   of second new parent is in ``$HG_PARENT2``.
 
 ``listkeys``
   Run after listing pushkeys (like bookmarks) in the repository. The
   key namespace is in ``$HG_NAMESPACE``. ``$HG_VALUES`` is a
   dictionary containing the keys and values.
 
 ``pushkey``
   Run after a pushkey (like a bookmark) is added to the
   repository. The key namespace is in ``$HG_NAMESPACE``, the key is in
   ``$HG_KEY``, the old value (if any) is in ``$HG_OLD``, and the new
   value is in ``$HG_NEW``.
 
 ``tag``
   Run after a tag is created. ID of tagged changeset is in ``$HG_NODE``.
   Name of tag is in ``$HG_TAG``. Tag is local if ``$HG_LOCAL=1``, in
   repository if ``$HG_LOCAL=0``.
 
 ``update``
   Run after updating the working directory. Changeset ID of first
   new parent is in ``$HG_PARENT1``. If merge, ID of second new parent is
   in ``$HG_PARENT2``. If the update succeeded, ``$HG_ERROR=0``. If the
   update failed (e.g. because conflicts not resolved), ``$HG_ERROR=1``.
 
 .. note::
 
    It is generally better to use standard hooks rather than the
    generic pre- and post- command hooks as they are guaranteed to be
    called in the appropriate contexts for influencing transactions.
    Also, hooks like "commit" will be called in all contexts that
    generate a commit (e.g. tag) and not just the commit command.
 
 .. note::
 
    Environment variables with empty values may not be passed to
    hooks on platforms such as Windows. As an example, ``$HG_PARENT2``
    will have an empty value under Unix-like platforms for non-merge
    changesets, while it will not be available at all under Windows.
 
 The syntax for Python hooks is as follows::
 
   hookname = python:modulename.submodule.callable
   hookname = python:/path/to/python/module.py:callable
 
 Python hooks are run within the Mercurial process. Each hook is
 called with at least three keyword arguments: a ui object (keyword
 ``ui``), a repository object (keyword ``repo``), and a ``hooktype``
 keyword that tells what kind of hook is used. Arguments listed as
 environment variables above are passed as keyword arguments, with no
 ``HG_`` prefix, and names in lower case.
 
 If a Python hook returns a "true" value or raises an exception, this
 is treated as a failure.
 
 
 ``hostfingerprints``
 --------------------
 
 Fingerprints of the certificates of known HTTPS servers.
 
 A HTTPS connection to a server with a fingerprint configured here will
 only succeed if the servers certificate matches the fingerprint.
 This is very similar to how ssh known hosts works.
 
 The fingerprint is the SHA-1 hash value of the DER encoded certificate.
 Multiple values can be specified (separated by spaces or commas). This can
 be used to define both old and new fingerprints while a host transitions
 to a new certificate.
 
 The CA chain and web.cacerts is not used for servers with a fingerprint.
 
 For example::
 
     [hostfingerprints]
     hg.intevation.de = fc:e2:8d:d9:51:cd:cb:c1:4d:18:6b:b7:44:8d:49:72:57:e6:cd:33
     hg.intevation.org = fc:e2:8d:d9:51:cd:cb:c1:4d:18:6b:b7:44:8d:49:72:57:e6:cd:33
 
 ``http_proxy``
 --------------
 
 Used to access web-based Mercurial repositories through a HTTP
 proxy.
 
 ``host``
     Host name and (optional) port of the proxy server, for example
     "myproxy:8000".
 
 ``no``
     Optional. Comma-separated list of host names that should bypass
     the proxy.
 
 ``passwd``
     Optional. Password to authenticate with at the proxy server.
 
 ``user``
     Optional. User name to authenticate with at the proxy server.
 
 ``always``
     Optional. Always use the proxy, even for localhost and any entries
     in ``http_proxy.no``. (default: False)
 
 ``merge``
 ---------
 
 This section specifies behavior during merges and updates.
 
 ``checkignored``
    Controls behavior when an ignored file on disk has the same name as a tracked
    file in the changeset being merged or updated to, and has different
    contents. Options are ``abort``, ``warn`` and ``ignore``. With ``abort``,
    abort on such files. With ``warn``, warn on such files and back them up as
    .orig. With ``ignore``, don't print a warning and back them up as
    .orig. (default: ``abort``)
 
 ``checkunknown``
    Controls behavior when an unknown file that isn't ignored has the same name
    as a tracked file in the changeset being merged or updated to, and has
    different contents. Similar to ``merge.checkignored``, except for files that
    are not ignored. (default: ``abort``)
 
 ``merge-patterns``
 ------------------
 
 This section specifies merge tools to associate with particular file
 patterns. Tools matched here will take precedence over the default
 merge tool. Patterns are globs by default, rooted at the repository
 root.
 
 Example::
 
   [merge-patterns]
   **.c = kdiff3
   **.jpg = myimgmerge
 
 ``merge-tools``
 ---------------
 
 This section configures external merge tools to use for file-level
 merges. This section has likely been preconfigured at install time.
 Use :hg:`config merge-tools` to check the existing configuration.
 Also see :hg:`help merge-tools` for more details.
 
 Example ``~/.hgrc``::
 
   [merge-tools]
   # Override stock tool location
   kdiff3.executable = ~/bin/kdiff3
   # Specify command line
   kdiff3.args = $base $local $other -o $output
   # Give higher priority
   kdiff3.priority = 1
 
   # Changing the priority of preconfigured tool
   meld.priority = 0
 
   # Disable a preconfigured tool
   vimdiff.disabled = yes
 
   # Define new tool
   myHtmlTool.args = -m $local $other $base $output
   myHtmlTool.regkey = Software\FooSoftware\HtmlMerge
   myHtmlTool.priority = 1
 
 Supported arguments:
 
 ``priority``
   The priority in which to evaluate this tool.
   (default: 0)
 
 ``executable``
   Either just the name of the executable or its pathname.
 
   .. container:: windows
 
     On Windows, the path can use environment variables with ${ProgramFiles}
     syntax.
 
   (default: the tool name)
 
 ``args``
   The arguments to pass to the tool executable. You can refer to the
   files being merged as well as the output file through these
   variables: ``$base``, ``$local``, ``$other``, ``$output``. The meaning
   of ``$local`` and ``$other`` can vary depending on which action is being
   performed. During and update or merge, ``$local`` represents the original
   state of the file, while ``$other`` represents the commit you are updating
   to or the commit you are merging with. During a rebase ``$local``
   represents the destination of the rebase, and ``$other`` represents the
   commit being rebased.
   (default: ``$local $base $other``)
 
 ``premerge``
   Attempt to run internal non-interactive 3-way merge tool before
   launching external tool.  Options are ``true``, ``false``, ``keep`` or
   ``keep-merge3``. The ``keep`` option will leave markers in the file if the
   premerge fails. The ``keep-merge3`` will do the same but include information
   about the base of the merge in the marker (see internal :merge3 in
   :hg:`help merge-tools`).
   (default: True)
 
 ``binary``
   This tool can merge binary files. (default: False, unless tool
   was selected by file pattern match)
 
 ``symlink``
   This tool can merge symlinks. (default: False)
 
 ``check``
   A list of merge success-checking options:
 
   ``changed``
     Ask whether merge was successful when the merged file shows no changes.
   ``conflicts``
     Check whether there are conflicts even though the tool reported success.
   ``prompt``
     Always prompt for merge success, regardless of success reported by tool.
 
 ``fixeol``
   Attempt to fix up EOL changes caused by the merge tool.
   (default: False)
 
 ``gui``
   This tool requires a graphical interface to run. (default: False)
 
 .. container:: windows
 
   ``regkey``
     Windows registry key which describes install location of this
     tool. Mercurial will search for this key first under
     ``HKEY_CURRENT_USER`` and then under ``HKEY_LOCAL_MACHINE``.
     (default: None)
 
   ``regkeyalt``
     An alternate Windows registry key to try if the first key is not
     found.  The alternate key uses the same ``regname`` and ``regappend``
     semantics of the primary key.  The most common use for this key
     is to search for 32bit applications on 64bit operating systems.
     (default: None)
 
   ``regname``
     Name of value to read from specified registry key.
     (default: the unnamed (default) value)
 
   ``regappend``
     String to append to the value read from the registry, typically
     the executable name of the tool.
     (default: None)
 
 
 ``patch``
 ---------
 
 Settings used when applying patches, for instance through the 'import'
 command or with Mercurial Queues extension.
 
 ``eol``
     When set to 'strict' patch content and patched files end of lines
     are preserved. When set to ``lf`` or ``crlf``, both files end of
     lines are ignored when patching and the result line endings are
     normalized to either LF (Unix) or CRLF (Windows). When set to
     ``auto``, end of lines are again ignored while patching but line
     endings in patched files are normalized to their original setting
     on a per-file basis. If target file does not exist or has no end
     of line, patch line endings are preserved.
     (default: strict)
 
 ``fuzz``
     The number of lines of 'fuzz' to allow when applying patches. This
     controls how much context the patcher is allowed to ignore when
     trying to apply a patch.
     (default: 2)
 
 ``paths``
 ---------
 
 Assigns symbolic names and behavior to repositories.
 
 Options are symbolic names defining the URL or directory that is the
 location of the repository. Example::
 
     [paths]
     my_server = https://example.com/my_repo
     local_path = /home/me/repo
 
 These symbolic names can be used from the command line. To pull
 from ``my_server``: :hg:`pull my_server`. To push to ``local_path``:
 :hg:`push local_path`.
 
 Options containing colons (``:``) denote sub-options that can influence
 behavior for that specific path. Example::
 
     [paths]
     my_server = https://example.com/my_path
     my_server:pushurl = ssh://example.com/my_path
 
 The following sub-options can be defined:
 
 ``pushurl``
    The URL to use for push operations. If not defined, the location
    defined by the path's main entry is used.
 
 The following special named paths exist:
 
 ``default``
    The URL or directory to use when no source or remote is specified.
 
    :hg:`clone` will automatically define this path to the location the
    repository was cloned from.
 
 ``default-push``
    (deprecated) The URL or directory for the default :hg:`push` location.
    ``default:pushurl`` should be used instead.
 
 ``phases``
 ----------
 
 Specifies default handling of phases. See :hg:`help phases` for more
 information about working with phases.
 
 ``publish``
     Controls draft phase behavior when working as a server. When true,
     pushed changesets are set to public in both client and server and
     pulled or cloned changesets are set to public in the client.
     (default: True)
 
 ``new-commit``
     Phase of newly-created commits.
     (default: draft)
 
 ``checksubrepos``
     Check the phase of the current revision of each subrepository. Allowed
     values are "ignore", "follow" and "abort". For settings other than
     "ignore", the phase of the current revision of each subrepository is
     checked before committing the parent repository. If any of those phases is
     greater than the phase of the parent repository (e.g. if a subrepo is in a
     "secret" phase while the parent repo is in "draft" phase), the commit is
     either aborted (if checksubrepos is set to "abort") or the higher phase is
     used for the parent repository commit (if set to "follow").
     (default: follow)
 
 
 ``profiling``
 -------------
 
 Specifies profiling type, format, and file output. Two profilers are
 supported: an instrumenting profiler (named ``ls``), and a sampling
 profiler (named ``stat``).
 
 In this section description, 'profiling data' stands for the raw data
 collected during profiling, while 'profiling report' stands for a
 statistical text report generated from the profiling data. The
 profiling is done using lsprof.
 
 ``type``
     The type of profiler to use.
     (default: ls)
 
     ``ls``
       Use Python's built-in instrumenting profiler. This profiler
       works on all platforms, but each line number it reports is the
       first line of a function. This restriction makes it difficult to
       identify the expensive parts of a non-trivial function.
     ``stat``
       Use a third-party statistical profiler, statprof. This profiler
       currently runs only on Unix systems, and is most useful for
       profiling commands that run for longer than about 0.1 seconds.
 
 ``format``
     Profiling format.  Specific to the ``ls`` instrumenting profiler.
     (default: text)
 
     ``text``
       Generate a profiling report. When saving to a file, it should be
       noted that only the report is saved, and the profiling data is
       not kept.
     ``kcachegrind``
       Format profiling data for kcachegrind use: when saving to a
       file, the generated file can directly be loaded into
       kcachegrind.
 
 ``frequency``
     Sampling frequency.  Specific to the ``stat`` sampling profiler.
     (default: 1000)
 
 ``output``
     File path where profiling data or report should be saved. If the
     file exists, it is replaced. (default: None, data is printed on
     stderr)
 
 ``sort``
     Sort field.  Specific to the ``ls`` instrumenting profiler.
     One of ``callcount``, ``reccallcount``, ``totaltime`` and
     ``inlinetime``.
     (default: inlinetime)
 
 ``limit``
     Number of lines to show. Specific to the ``ls`` instrumenting profiler.
     (default: 30)
 
 ``nested``
     Show at most this number of lines of drill-down info after each main entry.
     This can help explain the difference between Total and Inline.
     Specific to the ``ls`` instrumenting profiler.
     (default: 5)
 
 ``progress``
 ------------
 
 Mercurial commands can draw progress bars that are as informative as
 possible. Some progress bars only offer indeterminate information, while others
 have a definite end point.
 
 ``delay``
     Number of seconds (float) before showing the progress bar. (default: 3)
 
 ``changedelay``
     Minimum delay before showing a new topic. When set to less than 3 * refresh,
     that value will be used instead. (default: 1)
 
 ``refresh``
     Time in seconds between refreshes of the progress bar. (default: 0.1)
 
 ``format``
     Format of the progress bar.
 
     Valid entries for the format field are ``topic``, ``bar``, ``number``,
     ``unit``, ``estimate``, ``speed``, and ``item``. ``item`` defaults to the
     last 20 characters of the item, but this can be changed by adding either
     ``-<num>`` which would take the last num characters, or ``+<num>`` for the
     first num characters.
 
     (default: topic bar number estimate)
 
 ``width``
     If set, the maximum width of the progress information (that is, min(width,
     term width) will be used).
 
 ``clear-complete``
     Clear the progress bar after it's done. (default: True)
 
 ``disable``
     If true, don't show a progress bar.
 
 ``assume-tty``
     If true, ALWAYS show a progress bar, unless disable is given.
 
 ``rebase``
 ----------
 
 ``allowdivergence``
     Default to False, when True allow creating divergence when performing
     rebase of obsolete changesets.
 
 ``revsetalias``
 ---------------
 
 Alias definitions for revsets. See :hg:`help revsets` for details.
 
 ``server``
 ----------
 
 Controls generic server settings.
 
 ``uncompressed``
     Whether to allow clients to clone a repository using the
     uncompressed streaming protocol. This transfers about 40% more
     data than a regular clone, but uses less memory and CPU on both
     server and client. Over a LAN (100 Mbps or better) or a very fast
     WAN, an uncompressed streaming clone is a lot faster (~10x) than a
     regular clone. Over most WAN connections (anything slower than
     about 6 Mbps), uncompressed streaming is slower, because of the
     extra data transfer overhead. This mode will also temporarily hold
     the write lock while determining what data to transfer.
     (default: True)
 
 ``preferuncompressed``
     When set, clients will try to use the uncompressed streaming
     protocol. (default: False)
 
 ``validate``
     Whether to validate the completeness of pushed changesets by
     checking that all new file revisions specified in manifests are
     present. (default: False)
 
 ``maxhttpheaderlen``
     Instruct HTTP clients not to send request headers longer than this
     many bytes. (default: 1024)
 
 ``bundle1``
     Whether to allow clients to push and pull using the legacy bundle1
     exchange format. (default: True)
 
 ``bundle1gd``
     Like ``bundle1`` but only used if the repository is using the
     *generaldelta* storage format. (default: True)
 
 ``bundle1.push``
     Whether to allow clients to push using the legacy bundle1 exchange
     format. (default: True)
 
 ``bundle1gd.push``
     Like ``bundle1.push`` but only used if the repository is using the
     *generaldelta* storage format. (default: True)
 
 ``bundle1.pull``
     Whether to allow clients to pull using the legacy bundle1 exchange
     format. (default: True)
 
 ``bundle1gd.pull``
     Like ``bundle1.pull`` but only used if the repository is using the
     *generaldelta* storage format. (default: True)
 
     Large repositories using the *generaldelta* storage format should
     consider setting this option because converting *generaldelta*
     repositories to the exchange format required by the bundle1 data
     format can consume a lot of CPU.
 
 ``smtp``
 --------
 
 Configuration for extensions that need to send email messages.
 
 ``host``
     Host name of mail server, e.g. "mail.example.com".
 
 ``port``
     Optional. Port to connect to on mail server. (default: 465 if
     ``tls`` is smtps; 25 otherwise)
 
 ``tls``
     Optional. Method to enable TLS when connecting to mail server: starttls,
     smtps or none. (default: none)
 
 ``verifycert``
     Optional. Verification for the certificate of mail server, when
     ``tls`` is starttls or smtps. "strict", "loose" or False. For
     "strict" or "loose", the certificate is verified as same as the
     verification for HTTPS connections (see ``[hostfingerprints]`` and
     ``[web] cacerts`` also). For "strict", sending email is also
     aborted, if there is no configuration for mail server in
     ``[hostfingerprints]`` and ``[web] cacerts``.  --insecure for
     :hg:`email` overwrites this as "loose". (default: strict)
 
 ``username``
     Optional. User name for authenticating with the SMTP server.
     (default: None)
 
 ``password``
     Optional. Password for authenticating with the SMTP server. If not
     specified, interactive sessions will prompt the user for a
     password; non-interactive sessions will fail. (default: None)
 
 ``local_hostname``
     Optional. The hostname that the sender can use to identify
     itself to the MTA.
 
 
 ``subpaths``
 ------------
 
 Subrepository source URLs can go stale if a remote server changes name
 or becomes temporarily unavailable. This section lets you define
 rewrite rules of the form::
 
     <pattern> = <replacement>
 
 where ``pattern`` is a regular expression matching a subrepository
 source URL and ``replacement`` is the replacement string used to
 rewrite it. Groups can be matched in ``pattern`` and referenced in
 ``replacements``. For instance::
 
     http://server/(.*)-hg/ = http://hg.server/\1/
 
 rewrites ``http://server/foo-hg/`` into ``http://hg.server/foo/``.
 
 Relative subrepository paths are first made absolute, and the
 rewrite rules are then applied on the full (absolute) path. The rules
 are applied in definition order.
 
+``templatealias``
+-----------------
+
+Alias definitions for templates. See :hg:`help templates` for details.
+
 ``trusted``
 -----------
 
 Mercurial will not use the settings in the
 ``.hg/hgrc`` file from a repository if it doesn't belong to a trusted
 user or to a trusted group, as various hgrc features allow arbitrary
 commands to be run. This issue is often encountered when configuring
 hooks or extensions for shared repositories or servers. However,
 the web interface will use some safe settings from the ``[web]``
 section.
 
 This section specifies what users and groups are trusted. The
 current user is always trusted. To trust everybody, list a user or a
 group with name ``*``. These settings must be placed in an
 *already-trusted file* to take effect, such as ``$HOME/.hgrc`` of the
 user or service running Mercurial.
 
 ``users``
   Comma-separated list of trusted users.
 
 ``groups``
   Comma-separated list of trusted groups.
 
 
 ``ui``
 ------
 
 User interface controls.
 
 ``archivemeta``
     Whether to include the .hg_archival.txt file containing meta data
     (hashes for the repository base and for tip) in archives created
     by the :hg:`archive` command or downloaded via hgweb.
     (default: True)
 
 ``askusername``
     Whether to prompt for a username when committing. If True, and
     neither ``$HGUSER`` nor ``$EMAIL`` has been specified, then the user will
     be prompted to enter a username. If no username is entered, the
     default ``USER@HOST`` is used instead.
     (default: False)
 
 ``clonebundles``
     Whether the "clone bundles" feature is enabled.
 
     When enabled, :hg:`clone` may download and apply a server-advertised
     bundle file from a URL instead of using the normal exchange mechanism.
 
     This can likely result in faster and more reliable clones.
 
     (default: True)
 
 ``clonebundlefallback``
     Whether failure to apply an advertised "clone bundle" from a server
     should result in fallback to a regular clone.
 
     This is disabled by default because servers advertising "clone
     bundles" often do so to reduce server load. If advertised bundles
     start mass failing and clients automatically fall back to a regular
     clone, this would add significant and unexpected load to the server
     since the server is expecting clone operations to be offloaded to
     pre-generated bundles. Failing fast (the default behavior) ensures
     clients don't overwhelm the server when "clone bundle" application
     fails.
 
     (default: False)
 
 ``clonebundleprefers``
     Defines preferences for which "clone bundles" to use.
 
     Servers advertising "clone bundles" may advertise multiple available
     bundles. Each bundle may have different attributes, such as the bundle
     type and compression format. This option is used to prefer a particular
     bundle over another.
 
     The following keys are defined by Mercurial:
 
     BUNDLESPEC
        A bundle type specifier. These are strings passed to :hg:`bundle -t`.
        e.g. ``gzip-v2`` or ``bzip2-v1``.
 
     COMPRESSION
        The compression format of the bundle. e.g. ``gzip`` and ``bzip2``.
 
     Server operators may define custom keys.
 
     Example values: ``COMPRESSION=bzip2``,
     ``BUNDLESPEC=gzip-v2, COMPRESSION=gzip``.
 
     By default, the first bundle advertised by the server is used.
 
 ``commitsubrepos``
     Whether to commit modified subrepositories when committing the
     parent repository. If False and one subrepository has uncommitted
     changes, abort the commit.
     (default: False)
 
 ``debug``
     Print debugging information. (default: False)
 
 ``editor``
     The editor to use during a commit. (default: ``$EDITOR`` or ``vi``)
 
 ``fallbackencoding``
     Encoding to try if it's not possible to decode the changelog using
     UTF-8. (default: ISO-8859-1)
 
 ``graphnodetemplate``
     The template used to print changeset nodes in an ASCII revision graph.
     (default: ``{graphnode}``)
 
 ``ignore``
     A file to read per-user ignore patterns from. This file should be
     in the same format as a repository-wide .hgignore file. Filenames
     are relative to the repository root. This option supports hook syntax,
     so if you want to specify multiple ignore files, you can do so by
     setting something like ``ignore.other = ~/.hgignore2``. For details
     of the ignore file format, see the ``hgignore(5)`` man page.
 
 ``interactive``
     Allow to prompt the user. (default: True)
 
 ``interface``
     Select the default interface for interactive features (default: text).
     Possible values are 'text' and 'curses'.
 
 ``interface.chunkselector``
     Select the interface for change recording (e.g. :hg:`commit` -i).
     Possible values are 'text' and 'curses'.
     This config overrides the interface specified by ui.interface.
 
 ``logtemplate``
     Template string for commands that print changesets.
 
 ``merge``
     The conflict resolution program to use during a manual merge.
     For more information on merge tools see :hg:`help merge-tools`.
     For configuring merge tools see the ``[merge-tools]`` section.
 
 ``mergemarkers``
     Sets the merge conflict marker label styling. The ``detailed``
     style uses the ``mergemarkertemplate`` setting to style the labels.
     The ``basic`` style just uses 'local' and 'other' as the marker label.
     One of ``basic`` or ``detailed``.
     (default: ``basic``)
 
 ``mergemarkertemplate``
     The template used to print the commit description next to each conflict
     marker during merge conflicts. See :hg:`help templates` for the template
     format.
 
     Defaults to showing the hash, tags, branches, bookmarks, author, and
     the first line of the commit description.
 
     If you use non-ASCII characters in names for tags, branches, bookmarks,
     authors, and/or commit descriptions, you must pay attention to encodings of
     managed files. At template expansion, non-ASCII characters use the encoding
     specified by the ``--encoding`` global option, ``HGENCODING`` or other
     environment variables that govern your locale. If the encoding of the merge
     markers is different from the encoding of the merged files,
     serious problems may occur.
 
 ``origbackuppath``
     The path to a directory used to store generated .orig files. If the path is
     not a directory, one will be created.
 
 ``patch``
     An optional external tool that ``hg import`` and some extensions
     will use for applying patches. By default Mercurial uses an
     internal patch utility. The external tool must work as the common
     Unix ``patch`` program. In particular, it must accept a ``-p``
     argument to strip patch headers, a ``-d`` argument to specify the
     current directory, a file name to patch, and a patch file to take
     from stdin.
 
     It is possible to specify a patch tool together with extra
     arguments. For example, setting this option to ``patch --merge``
     will use the ``patch`` program with its 2-way merge option.
 
 ``portablefilenames``
     Check for portable filenames. Can be ``warn``, ``ignore`` or ``abort``.
     (default: ``warn``)
 
     ``warn``
       Print a warning message on POSIX platforms, if a file with a non-portable
       filename is added (e.g. a file with a name that can't be created on
       Windows because it contains reserved parts like ``AUX``, reserved
       characters like ``:``, or would cause a case collision with an existing
       file).
 
     ``ignore``
       Don't print a warning.
 
     ``abort``
       The command is aborted.
 
     ``true``
       Alias for ``warn``.
 
     ``false``
       Alias for ``ignore``.
 
     .. container:: windows
 
       On Windows, this configuration option is ignored and the command aborted.
 
 ``quiet``
     Reduce the amount of output printed.
     (default: False)
 
 ``remotecmd``
     Remote command to use for clone/push/pull operations.
     (default: ``hg``)
 
 ``report_untrusted``
     Warn if a ``.hg/hgrc`` file is ignored due to not being owned by a
     trusted user or group.
     (default: True)
 
 ``slash``
     Display paths using a slash (``/``) as the path separator. This
     only makes a difference on systems where the default path
     separator is not the slash character (e.g. Windows uses the
     backslash character (``\``)).
     (default: False)
 
 ``statuscopies``
     Display copies in the status command.
 
 ``ssh``
     Command to use for SSH connections. (default: ``ssh``)
 
 ``strict``
     Require exact command names, instead of allowing unambiguous
     abbreviations. (default: False)
 
 ``style``
     Name of style to use for command output.
 
 ``supportcontact``
     A URL where users should report a Mercurial traceback. Use this if you are a
     large organisation with its own Mercurial deployment process and crash
     reports should be addressed to your internal support.
 
 ``timeout``
     The timeout used when a lock is held (in seconds), a negative value
     means no timeout. (default: 600)
 
 ``traceback``
     Mercurial always prints a traceback when an unknown exception
     occurs. Setting this to True will make Mercurial print a traceback
     on all exceptions, even those recognized by Mercurial (such as
     IOError or MemoryError). (default: False)
 
 ``username``
     The committer of a changeset created when running "commit".
     Typically a person's name and email address, e.g. ``Fred Widget
     <[e-mail]>``. Environment variables in the
     username are expanded.
 
     (default: ``$EMAIL`` or ``username@hostname``. If the username in
     hgrc is empty, e.g. if the system admin set ``username =`` in the
     system hgrc, it has to be specified manually or in a different
     hgrc file)
 
 ``verbose``
     Increase the amount of output printed. (default: False)
 
 
 ``web``
 -------
 
 Web interface configuration. The settings in this section apply to
 both the builtin webserver (started by :hg:`serve`) and the script you
 run through a webserver (``hgweb.cgi`` and the derivatives for FastCGI
 and WSGI).
 
 The Mercurial webserver does no authentication (it does not prompt for
 usernames and passwords to validate *who* users are), but it does do
 authorization (it grants or denies access for *authenticated users*
 based on settings in this section). You must either configure your
 webserver to do authentication for you, or disable the authorization
 checks.
 
 For a quick setup in a trusted environment, e.g., a private LAN, where
 you want it to accept pushes from anybody, you can use the following
 command line::
 
     $ hg --config web.allow_push=* --config web.push_ssl=False serve
 
 Note that this will allow anybody to push anything to the server and
 that this should not be used for public servers.
 
 The full set of options is:
 
 ``accesslog``
     Where to output the access log. (default: stdout)
 
 ``address``
     Interface address to bind to. (default: all)
 
 ``allow_archive``
     List of archive format (bz2, gz, zip) allowed for downloading.
     (default: empty)
 
 ``allowbz2``
     (DEPRECATED) Whether to allow .tar.bz2 downloading of repository
     revisions.
     (default: False)
 
 ``allowgz``
     (DEPRECATED) Whether to allow .tar.gz downloading of repository
     revisions.
     (default: False)
 
 ``allowpull``
     Whether to allow pulling from the repository. (default: True)
 
 ``allow_push``
     Whether to allow pushing to the repository. If empty or not set,
     pushing is not allowed. If the special value ``*``, any remote
     user can push, including unauthenticated users. Otherwise, the
     remote user must have been authenticated, and the authenticated
     user name must be present in this list. The contents of the
     allow_push list are examined after the deny_push list.
 
 ``allow_read``
     If the user has not already been denied repository access due to
     the contents of deny_read, this list determines whether to grant
     repository access to the user. If this list is not empty, and the
     user is unauthenticated or not present in the list, then access is
     denied for the user. If the list is empty or not set, then access
     is permitted to all users by default. Setting allow_read to the
     special value ``*`` is equivalent to it not being set (i.e. access
     is permitted to all users). The contents of the allow_read list are
     examined after the deny_read list.
 
 ``allowzip``
     (DEPRECATED) Whether to allow .zip downloading of repository
     revisions. This feature creates temporary files.
     (default: False)
 
 ``archivesubrepos``
     Whether to recurse into subrepositories when archiving.
     (default: False)
 
 ``baseurl``
     Base URL to use when publishing URLs in other locations, so
     third-party tools like email notification hooks can construct
     URLs. Example: ``http://hgserver/repos/``.
 
 ``cacerts``
     Path to file containing a list of PEM encoded certificate
     authority certificates. Environment variables and ``~user``
     constructs are expanded in the filename. If specified on the
     client, then it will verify the identity of remote HTTPS servers
     with these certificates.
 
     To disable SSL verification temporarily, specify ``--insecure`` from
     command line.
 
     You can use OpenSSL's CA certificate file if your platform has
     one. On most Linux systems this will be
     ``/etc/ssl/certs/ca-certificates.crt``. Otherwise you will have to
     generate this file manually. The form must be as follows::
 
         -----BEGIN CERTIFICATE-----
         ... (certificate in base64 PEM encoding) ...
         -----END CERTIFICATE-----
         -----BEGIN CERTIFICATE-----
         ... (certificate in base64 PEM encoding) ...
         -----END CERTIFICATE-----
 
 ``cache``
     Whether to support caching in hgweb. (default: True)
 
 ``certificate``
     Certificate to use when running :hg:`serve`.
 
 ``collapse``
     With ``descend`` enabled, repositories in subdirectories are shown at
     a single level alongside repositories in the current path. With
     ``collapse`` also enabled, repositories residing at a deeper level than
     the current path are grouped behind navigable directory entries that
     lead to the locations of these repositories. In effect, this setting
     collapses each collection of repositories found within a subdirectory
     into a single entry for that subdirectory. (default: False)
 
 ``comparisoncontext``
     Number of lines of context to show in side-by-side file comparison. If
     negative or the value ``full``, whole files are shown. (default: 5)
 
     This setting can be overridden by a ``context`` request parameter to the
     ``comparison`` command, taking the same values.
 
 ``contact``
     Name or email address of the person in charge of the repository.
     (default: ui.username or ``$EMAIL`` or "unknown" if unset or empty)
 
 ``deny_push``
     Whether to deny pushing to the repository. If empty or not set,
     push is not denied. If the special value ``*``, all remote users are
     denied push. Otherwise, unauthenticated users are all denied, and
     any authenticated user name present in this list is also denied. The
     contents of the deny_push list are examined before the allow_push list.
 
 ``deny_read``
     Whether to deny reading/viewing of the repository. If this list is
     not empty, unauthenticated users are all denied, and any
     authenticated user name present in this list is also denied access to
     the repository. If set to the special value ``*``, all remote users
     are denied access (rarely needed ;). If deny_read is empty or not set,
     the determination of repository access depends on the presence and
     content of the allow_read list (see description). If both
     deny_read and allow_read are empty or not set, then access is
     permitted to all users by default. If the repository is being
     served via hgwebdir, denied users will not be able to see it in
     the list of repositories. The contents of the deny_read list have
     priority over (are examined before) the contents of the allow_read
     list.
 
 ``descend``
     hgwebdir indexes will not descend into subdirectories. Only repositories
     directly in the current path will be shown (other repositories are still
     available from the index corresponding to their containing path).
 
 ``description``
     Textual description of the repository's purpose or contents.
     (default: "unknown")
 
 ``encoding``
     Character encoding name. (default: the current locale charset)
     Example: "UTF-8".
 
 ``errorlog``
     Where to output the error log. (default: stderr)
 
 ``guessmime``
     Control MIME types for raw download of file content.
     Set to True to let hgweb guess the content type from the file
     extension. This will serve HTML files as ``text/html`` and might
     allow cross-site scripting attacks when serving untrusted
     repositories. (default: False)
 
 ``hidden``
     Whether to hide the repository in the hgwebdir index.
     (default: False)
 
 ``ipv6``
     Whether to use IPv6. (default: False)
 
 ``logoimg``
     File name of the logo image that some templates display on each page.
     The file name is relative to ``staticurl``. That is, the full path to
     the logo image is "staticurl/logoimg".
     If unset, ``hglogo.png`` will be used.
 
 ``logourl``
     Base URL to use for logos. If unset, ``https://mercurial-scm.org/``
     will be used.
 
 ``maxchanges``
     Maximum number of changes to list on the changelog. (default: 10)
 
 ``maxfiles``
     Maximum number of files to list per changeset. (default: 10)
 
 ``maxshortchanges``
     Maximum number of changes to list on the shortlog, graph or filelog
     pages. (default: 60)
 
 ``name``
     Repository name to use in the web interface.
     (default: current working directory)
 
 ``port``
     Port to listen on. (default: 8000)
 
 ``prefix``
     Prefix path to serve from. (default: '' (server root))
 
 ``push_ssl``
     Whether to require that inbound pushes be transported over SSL to
     prevent password sniffing. (default: True)
 
 ``refreshinterval``
     How frequently directory listings re-scan the filesystem for new
     repositories, in seconds. This is relevant when wildcards are used
     to define paths. Depending on how much filesystem traversal is
     required, refreshing may negatively impact performance.
 
     Values less than or equal to 0 always refresh.
     (default: 20)
 
 ``staticurl``
     Base URL to use for static files. If unset, static files (e.g. the
     hgicon.png favicon) will be served by the CGI script itself. Use
     this setting to serve them directly with the HTTP server.
     Example: ``http://hgserver/static/``.
 
 ``stripes``
     How many lines a "zebra stripe" should span in multi-line output.
     Set to 0 to disable. (default: 1)
 
 ``style``
     Which template map style to use. The available options are the names of
     subdirectories in the HTML templates path. (default: ``paper``)
     Example: ``monoblue``.
 
 ``templates``
     Where to find the HTML templates. The default path to the HTML templates
     can be obtained from ``hg debuginstall``.
 
 ``websub``
 ----------
 
 Web substitution filter definition. You can use this section to
 define a set of regular expression substitution patterns which
 let you automatically modify the hgweb server output.
 
 The default hgweb templates only apply these substitution patterns
 on the revision description fields. You can apply them anywhere
 you want when you create your own templates by adding calls to the
 "websub" filter (usually after calling the "escape" filter).
 
 This can be used, for example, to convert issue references to links
 to your issue tracker, or to convert "markdown-like" syntax into
 HTML (see the examples below).
 
 Each entry in this section names a substitution filter.
 The value of each entry defines the substitution expression itself.
 The websub expressions follow the old interhg extension syntax,
 which in turn imitates the Unix sed replacement syntax::
 
     patternname = s/SEARCH_REGEX/REPLACE_EXPRESSION/[i]
 
 You can use any separator other than "/". The final "i" is optional
 and indicates that the search must be case insensitive.
 
 Examples::
 
     [websub]
     issues = s|issue(\d+)|<a href="http://bts.example.org/issue\1">issue\1</a>|i
     italic = s/\b_(\S+)_\b/<i>\1<\/i>/
     bold = s/\*\b(\S+)\b\*/<b>\1<\/b>/
 
 ``worker``
 ----------
 
 Parallel master/worker configuration. We currently perform working
 directory updates in parallel on Unix-like systems, which greatly
 helps performance.
 
 ``numcpus``
     Number of CPUs to use for parallel operations. A zero or
     negative value is treated as ``use the default``.
     (default: 4 or the number of CPUs on the system, whichever is larger)
 
 ``backgroundclose``
     Whether to enable closing file handles on background threads during certain
     operations. Some platforms aren't very efficient at closing file
     handles that have been written or appended to. By performing file closing
     on background threads, file write rate can increase substantially.
     (default: true on Windows, false elsewhere)
 
 ``backgroundcloseminfilecount``
     Minimum number of files required to trigger background file closing.
     Operations not writing this many files won't start background close
     threads.
     (default: 2048)
 
 ``backgroundclosemaxqueue``
     The maximum number of opened file handles waiting to be closed in the
     background. This option only has an effect if ``backgroundclose`` is
     enabled.
     (default: 384)
 
 ``backgroundclosethreadcount``
     Number of threads to process background file closes. Only relevant if
     ``backgroundclose`` is enabled.
     (default: 4)

mercurial/help/templates.txt

@@ -1,123 +1,143 b''
 Mercurial allows you to customize output of commands through
 templates. You can either pass in a template or select an existing
 template-style from the command line, via the --template option.
 
 You can customize output for any "log-like" command: log,
 outgoing, incoming, tip, parents, and heads.
 
 Some built-in styles are packaged with Mercurial. These can be listed
 with :hg:`log --template list`. Example usage::
 
     $ hg log -r1.0::1.1 --template changelog
 
 A template is a piece of text, with markup to invoke variable
 expansion::
 
     $ hg log -r1 --template "{node}\n"
     b56ce7b07c52de7d5fd79fb89701ea538af65746
 
 Strings in curly braces are called keywords. The availability of
 keywords depends on the exact context of the templater. These
 keywords are usually available for templating a log-like command:
 
 .. keywordsmarker
 
 The "date" keyword does not produce human-readable output. If you
 want to use a date in your output, you can use a filter to process
 it. Filters are functions which return a string based on the input
 variable. Be sure to use the stringify filter first when you're
 applying a string-input filter to a list-like input variable.
 You can also use a chain of filters to get the desired output::
 
    $ hg tip --template "{date|isodate}\n"
    2008-08-21 18:22 +0000
 
 List of filters:
 
 .. filtersmarker
 
 Note that a filter is nothing more than a function call, i.e.
 ``expr|filter`` is equivalent to ``filter(expr)``.
 
 In addition to filters, there are some basic built-in functions:
 
 .. functionsmarker
 
 Also, for any expression that returns a list, there is a list operator::
 
     expr % "{template}"
 
 As seen in the above example, ``{template}`` is interpreted as a template.
 To prevent it from being interpreted, you can use an escape character ``\{``
 or a raw string prefix, ``r'...'``.
 
+New keywords and functions can be defined in the ``templatealias`` section of
+a Mercurial configuration file::
+
+  <alias> = <definition>
+
+Arguments of the form `a1`, `a2`, etc. are substituted from the alias into
+the definition.
+
+For example,
+
+::
+
+  [templatealias]
+  r = rev
+  rn = "{r}:{node|short}"
+  leftpad(s, w) = pad(s, w, ' ', True)
+
+defines two symbol aliases, ``r`` and ``rn``, and a function alias
+``leftpad()``.
+
 Some sample command line templates:
 
 - Format lists, e.g. files::
 
    $ hg log -r 0 --template "files:\n{files % '  {file}\n'}"
 
 - Join the list of files with a ", "::
 
    $ hg log -r 0 --template "files: {join(files, ', ')}\n"
 
 - Modify each line of a commit description::
 
    $ hg log --template "{splitlines(desc) % '**** {line}\n'}"
 
 - Format date::
 
    $ hg log -r 0 --template "{date(date, '%Y')}\n"
 
 - Display date in UTC::
 
    $ hg log -r 0 --template "{localdate(date, 'UTC')|date}\n"
 
 - Output the description set to a fill-width of 30::
 
    $ hg log -r 0 --template "{fill(desc, 30)}"
 
 - Use a conditional to test for the default branch::
 
    $ hg log -r 0 --template "{ifeq(branch, 'default', 'on the main branch',
    'on branch {branch}')}\n"
 
 - Append a newline if not empty::
 
    $ hg tip --template "{if(author, '{author}\n')}"
 
 - Label the output for use with the color extension::
 
    $ hg log -r 0 --template "{label('changeset.{phase}', node|short)}\n"
 
 - Invert the firstline filter, i.e. everything but the first line::
 
    $ hg log -r 0 --template "{sub(r'^.*\n?\n?', '', desc)}\n"
 
 - Display the contents of the 'extra' field, one per line::
 
    $ hg log -r 0 --template "{join(extras, '\n')}\n"
 
 - Mark the active bookmark with '*'::
 
    $ hg log --template "{bookmarks % '{bookmark}{ifeq(bookmark, active, '*')} '}\n"
 
 - Find the previous release candidate tag, the distance and changes since the tag::
 
    $ hg log -r . --template "{latesttag('re:^.*-rc$') % '{tag}, {changes}, {distance}'}\n"
 
 - Mark the working copy parent with '@'::
 
    $ hg log --template "{ifcontains(rev, revset('.'), '@')}\n"
 
 - Show details of parent revisions::
 
    $ hg log --template "{revset('parents(%d)', rev) % '{desc|firstline}\n'}"
 
 - Show only commit descriptions that start with "template"::
 
    $ hg log --template "{startswith('template', firstline(desc))}\n"
 
 - Print the first word of each line of a commit message::
 
    $ hg log --template "{word(0, desc)}\n"

mercurial/templater.py

@@ -1,1135 +1,1142 b''
 # templater.py - template expansion for output
 #
 # Copyright 2005, 2006 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import os
 import re
 import types
 
 from .i18n import _
 from . import (
     config,
     error,
     minirst,
     parser,
     registrar,
     revset as revsetmod,
     templatefilters,
     templatekw,
     util,
 )
 
 # template parsing
 
 elements = {
     # token-type: binding-strength, primary, prefix, infix, suffix
     "(": (20, None, ("group", 1, ")"), ("func", 1, ")"), None),
     ",": (2, None, None, ("list", 2), None),
     "|": (5, None, None, ("|", 5), None),
     "%": (6, None, None, ("%", 6), None),
     ")": (0, None, None, None, None),
     "integer": (0, "integer", None, None, None),
     "symbol": (0, "symbol", None, None, None),
     "string": (0, "string", None, None, None),
     "template": (0, "template", None, None, None),
     "end": (0, None, None, None, None),
 }
 
 def tokenize(program, start, end, term=None):
     """Parse a template expression into a stream of tokens, which must end
     with term if specified"""
     pos = start
     while pos < end:
         c = program[pos]
         if c.isspace(): # skip inter-token whitespace
             pass
         elif c in "(,)%|": # handle simple operators
             yield (c, None, pos)
         elif c in '"\'': # handle quoted templates
             s = pos + 1
             data, pos = _parsetemplate(program, s, end, c)
             yield ('template', data, s)
             pos -= 1
         elif c == 'r' and program[pos:pos + 2] in ("r'", 'r"'):
             # handle quoted strings
             c = program[pos + 1]
             s = pos = pos + 2
             while pos < end: # find closing quote
                 d = program[pos]
                 if d == '\\': # skip over escaped characters
                     pos += 2
                     continue
                 if d == c:
                     yield ('string', program[s:pos], s)
                     break
                 pos += 1
             else:
                 raise error.ParseError(_("unterminated string"), s)
         elif c.isdigit() or c == '-':
             s = pos
             if c == '-': # simply take negate operator as part of integer
                 pos += 1
             if pos >= end or not program[pos].isdigit():
                 raise error.ParseError(_("integer literal without digits"), s)
             pos += 1
             while pos < end:
                 d = program[pos]
                 if not d.isdigit():
                     break
                 pos += 1
             yield ('integer', program[s:pos], s)
             pos -= 1
         elif (c == '\\' and program[pos:pos + 2] in (r"\'", r'\"')
               or c == 'r' and program[pos:pos + 3] in (r"r\'", r'r\"')):
             # handle escaped quoted strings for compatibility with 2.9.2-3.4,
             # where some of nested templates were preprocessed as strings and
             # then compiled. therefore, \"...\" was allowed. (issue4733)
             #
             # processing flow of _evalifliteral() at 5ab28a2e9962:
             # outer template string    -> stringify()  -> compiletemplate()
             # ------------------------    ------------    ------------------
             # {f("\\\\ {g(\"\\\"\")}"}    \\ {g("\"")}    [r'\\', {g("\"")}]
             #             ~~~~~~~~
             #             escaped quoted string
             if c == 'r':
                 pos += 1
                 token = 'string'
             else:
                 token = 'template'
             quote = program[pos:pos + 2]
             s = pos = pos + 2
             while pos < end: # find closing escaped quote
                 if program.startswith('\\\\\\', pos, end):
                     pos += 4 # skip over double escaped characters
                     continue
                 if program.startswith(quote, pos, end):
                     # interpret as if it were a part of an outer string
                     data = parser.unescapestr(program[s:pos])
                     if token == 'template':
                         data = _parsetemplate(data, 0, len(data))[0]
                     yield (token, data, s)
                     pos += 1
                     break
                 pos += 1
             else:
                 raise error.ParseError(_("unterminated string"), s)
         elif c.isalnum() or c in '_':
             s = pos
             pos += 1
             while pos < end: # find end of symbol
                 d = program[pos]
                 if not (d.isalnum() or d == "_"):
                     break
                 pos += 1
             sym = program[s:pos]
             yield ('symbol', sym, s)
             pos -= 1
         elif c == term:
             yield ('end', None, pos + 1)
             return
         else:
             raise error.ParseError(_("syntax error"), pos)
         pos += 1
     if term:
         raise error.ParseError(_("unterminated template expansion"), start)
     yield ('end', None, pos)
 
 def _parsetemplate(tmpl, start, stop, quote=''):
     r"""
     >>> _parsetemplate('foo{bar}"baz', 0, 12)
     ([('string', 'foo'), ('symbol', 'bar'), ('string', '"baz')], 12)
     >>> _parsetemplate('foo{bar}"baz', 0, 12, quote='"')
     ([('string', 'foo'), ('symbol', 'bar')], 9)
     >>> _parsetemplate('foo"{bar}', 0, 9, quote='"')
     ([('string', 'foo')], 4)
     >>> _parsetemplate(r'foo\"bar"baz', 0, 12, quote='"')
     ([('string', 'foo"'), ('string', 'bar')], 9)
     >>> _parsetemplate(r'foo\\"bar', 0, 10, quote='"')
     ([('string', 'foo\\')], 6)
     """
     parsed = []
     sepchars = '{' + quote
     pos = start
     p = parser.parser(elements)
     while pos < stop:
         n = min((tmpl.find(c, pos, stop) for c in sepchars),
                 key=lambda n: (n < 0, n))
         if n < 0:
             parsed.append(('string', parser.unescapestr(tmpl[pos:stop])))
             pos = stop
             break
         c = tmpl[n]
         bs = (n - pos) - len(tmpl[pos:n].rstrip('\\'))
         if bs % 2 == 1:
             # escaped (e.g. '\{', '\\\{', but not '\\{')
             parsed.append(('string', parser.unescapestr(tmpl[pos:n - 1]) + c))
             pos = n + 1
             continue
         if n > pos:
             parsed.append(('string', parser.unescapestr(tmpl[pos:n])))
         if c == quote:
             return parsed, n + 1
 
         parseres, pos = p.parse(tokenize(tmpl, n + 1, stop, '}'))
         parsed.append(parseres)
 
     if quote:
         raise error.ParseError(_("unterminated string"), start)
     return parsed, pos
 
 def _unnesttemplatelist(tree):
     """Expand list of templates to node tuple
 
     >>> def f(tree):
     ...     print prettyformat(_unnesttemplatelist(tree))
     >>> f(('template', []))
     ('string', '')
     >>> f(('template', [('string', 'foo')]))
     ('string', 'foo')
     >>> f(('template', [('string', 'foo'), ('symbol', 'rev')]))
     (template
       ('string', 'foo')
       ('symbol', 'rev'))
     >>> f(('template', [('symbol', 'rev')]))  # template(rev) -> str
     (template
       ('symbol', 'rev'))
     >>> f(('template', [('template', [('string', 'foo')])]))
     ('string', 'foo')
     """
     if not isinstance(tree, tuple):
         return tree
     op = tree[0]
     if op != 'template':
         return (op,) + tuple(_unnesttemplatelist(x) for x in tree[1:])
 
     assert len(tree) == 2
     xs = tuple(_unnesttemplatelist(x) for x in tree[1])
     if not xs:
         return ('string', '')  # empty template ""
     elif len(xs) == 1 and xs[0][0] == 'string':
         return xs[0]  # fast path for string with no template fragment "x"
     else:
         return (op,) + xs
 
 def parse(tmpl):
     """Parse template string into tree"""
     parsed, pos = _parsetemplate(tmpl, 0, len(tmpl))
     assert pos == len(tmpl), 'unquoted template should be consumed'
     return _unnesttemplatelist(('template', parsed))
 
 def _parseexpr(expr):
     """Parse a template expression into tree
 
     >>> _parseexpr('"foo"')
     ('string', 'foo')
     >>> _parseexpr('foo(bar)')
     ('func', ('symbol', 'foo'), ('symbol', 'bar'))
     >>> _parseexpr('foo(')
     Traceback (most recent call last):
       ...
     ParseError: ('not a prefix: end', 4)
     >>> _parseexpr('"foo" "bar"')
     Traceback (most recent call last):
       ...
     ParseError: ('invalid token', 7)
     """
     p = parser.parser(elements)
     tree, pos = p.parse(tokenize(expr, 0, len(expr)))
     if pos != len(expr):
         raise error.ParseError(_('invalid token'), pos)
     return _unnesttemplatelist(tree)
 
 def prettyformat(tree):
     return parser.prettyformat(tree, ('integer', 'string', 'symbol'))
 
 def compileexp(exp, context, curmethods):
     """Compile parsed template tree to (func, data) pair"""
     t = exp[0]
     if t in curmethods:
         return curmethods[t](exp, context)
     raise error.ParseError(_("unknown method '%s'") % t)
 
 # template evaluation
 
 def getsymbol(exp):
     if exp[0] == 'symbol':
         return exp[1]
     raise error.ParseError(_("expected a symbol, got '%s'") % exp[0])
 
 def getlist(x):
     if not x:
         return []
     if x[0] == 'list':
         return getlist(x[1]) + [x[2]]
     return [x]
 
 def gettemplate(exp, context):
     """Compile given template tree or load named template from map file;
     returns (func, data) pair"""
     if exp[0] in ('template', 'string'):
         return compileexp(exp, context, methods)
     if exp[0] == 'symbol':
         # unlike runsymbol(), here 'symbol' is always taken as template name
         # even if it exists in mapping. this allows us to override mapping
         # by web templates, e.g. 'changelogtag' is redefined in map file.
         return context._load(exp[1])
     raise error.ParseError(_("expected template specifier"))
 
 def evalfuncarg(context, mapping, arg):
     func, data = arg
     # func() may return string, generator of strings or arbitrary object such
     # as date tuple, but filter does not want generator.
     thing = func(context, mapping, data)
     if isinstance(thing, types.GeneratorType):
         thing = stringify(thing)
     return thing
 
 def evalinteger(context, mapping, arg, err):
     v = evalfuncarg(context, mapping, arg)
     try:
         return int(v)
     except (TypeError, ValueError):
         raise error.ParseError(err)
 
 def evalstring(context, mapping, arg):
     func, data = arg
     return stringify(func(context, mapping, data))
 
 def evalstringliteral(context, mapping, arg):
     """Evaluate given argument as string template, but returns symbol name
     if it is unknown"""
     func, data = arg
     if func is runsymbol:
         thing = func(context, mapping, data, default=data)
     else:
         thing = func(context, mapping, data)
     return stringify(thing)
 
 def runinteger(context, mapping, data):
     return int(data)
 
 def runstring(context, mapping, data):
     return data
 
 def _recursivesymbolblocker(key):
     def showrecursion(**args):
         raise error.Abort(_("recursive reference '%s' in template") % key)
     return showrecursion
 
 def _runrecursivesymbol(context, mapping, key):
     raise error.Abort(_("recursive reference '%s' in template") % key)
 
 def runsymbol(context, mapping, key, default=''):
     v = mapping.get(key)
     if v is None:
         v = context._defaults.get(key)
     if v is None:
         # put poison to cut recursion. we can't move this to parsing phase
         # because "x = {x}" is allowed if "x" is a keyword. (issue4758)
         safemapping = mapping.copy()
         safemapping[key] = _recursivesymbolblocker(key)
         try:
             v = context.process(key, safemapping)
         except TemplateNotFound:
             v = default
     if callable(v):
         return v(**mapping)
     return v
 
 def buildtemplate(exp, context):
     ctmpl = [compileexp(e, context, methods) for e in exp[1:]]
     return (runtemplate, ctmpl)
 
 def runtemplate(context, mapping, template):
     for func, data in template:
         yield func(context, mapping, data)
 
 def buildfilter(exp, context):
     arg = compileexp(exp[1], context, methods)
     n = getsymbol(exp[2])
     if n in context._filters:
         filt = context._filters[n]
         return (runfilter, (arg, filt))
     if n in funcs:
         f = funcs[n]
         return (f, [arg])
     raise error.ParseError(_("unknown function '%s'") % n)
 
 def runfilter(context, mapping, data):
     arg, filt = data
     thing = evalfuncarg(context, mapping, arg)
     try:
         return filt(thing)
     except (ValueError, AttributeError, TypeError):
         if isinstance(arg[1], tuple):
             dt = arg[1][1]
         else:
             dt = arg[1]
         raise error.Abort(_("template filter '%s' is not compatible with "
                            "keyword '%s'") % (filt.func_name, dt))
 
 def buildmap(exp, context):
     func, data = compileexp(exp[1], context, methods)
     tfunc, tdata = gettemplate(exp[2], context)
     return (runmap, (func, data, tfunc, tdata))
 
 def runmap(context, mapping, data):
     func, data, tfunc, tdata = data
     d = func(context, mapping, data)
     if util.safehasattr(d, 'itermaps'):
         diter = d.itermaps()
     else:
         try:
             diter = iter(d)
         except TypeError:
             if func is runsymbol:
                 raise error.ParseError(_("keyword '%s' is not iterable") % data)
             else:
                 raise error.ParseError(_("%r is not iterable") % d)
 
     for i in diter:
         lm = mapping.copy()
         if isinstance(i, dict):
             lm.update(i)
             lm['originalnode'] = mapping.get('node')
             yield tfunc(context, lm, tdata)
         else:
             # v is not an iterable of dicts, this happen when 'key'
             # has been fully expanded already and format is useless.
             # If so, return the expanded value.
             yield i
 
 def buildfunc(exp, context):
     n = getsymbol(exp[1])
     args = [compileexp(x, context, exprmethods) for x in getlist(exp[2])]
     if n in funcs:
         f = funcs[n]
         return (f, args)
     if n in context._filters:
         if len(args) != 1:
             raise error.ParseError(_("filter %s expects one argument") % n)
         f = context._filters[n]
         return (runfilter, (args[0], f))
     raise error.ParseError(_("unknown function '%s'") % n)
 
 # dict of template built-in functions
 funcs = {}
 
 templatefunc = registrar.templatefunc(funcs)
 
 @templatefunc('date(date[, fmt])')
 def date(context, mapping, args):
     """Format a date. See :hg:`help dates` for formatting
     strings. The default is a Unix date format, including the timezone:
     "Mon Sep 04 15:13:13 2006 0700"."""
     if not (1 <= len(args) <= 2):
         # i18n: "date" is a keyword
         raise error.ParseError(_("date expects one or two arguments"))
 
     date = evalfuncarg(context, mapping, args[0])
     fmt = None
     if len(args) == 2:
         fmt = evalstring(context, mapping, args[1])
     try:
         if fmt is None:
             return util.datestr(date)
         else:
             return util.datestr(date, fmt)
     except (TypeError, ValueError):
         # i18n: "date" is a keyword
         raise error.ParseError(_("date expects a date information"))
 
 @templatefunc('diff([includepattern [, excludepattern]])')
 def diff(context, mapping, args):
     """Show a diff, optionally
     specifying files to include or exclude."""
     if len(args) > 2:
         # i18n: "diff" is a keyword
         raise error.ParseError(_("diff expects zero, one, or two arguments"))
 
     def getpatterns(i):
         if i < len(args):
             s = evalstring(context, mapping, args[i]).strip()
             if s:
                 return [s]
         return []
 
     ctx = mapping['ctx']
     chunks = ctx.diff(match=ctx.match([], getpatterns(0), getpatterns(1)))
 
     return ''.join(chunks)
 
 @templatefunc('fill(text[, width[, initialident[, hangindent]]])')
 def fill(context, mapping, args):
     """Fill many
     paragraphs with optional indentation. See the "fill" filter."""
     if not (1 <= len(args) <= 4):
         # i18n: "fill" is a keyword
         raise error.ParseError(_("fill expects one to four arguments"))
 
     text = evalstring(context, mapping, args[0])
     width = 76
     initindent = ''
     hangindent = ''
     if 2 <= len(args) <= 4:
         width = evalinteger(context, mapping, args[1],
                             # i18n: "fill" is a keyword
                             _("fill expects an integer width"))
         try:
             initindent = evalstring(context, mapping, args[2])
             hangindent = evalstring(context, mapping, args[3])
         except IndexError:
             pass
 
     return templatefilters.fill(text, width, initindent, hangindent)
 
 @templatefunc('pad(text, width[, fillchar=\' \'[, right=False]])')
 def pad(context, mapping, args):
     """Pad text with a
     fill character."""
     if not (2 <= len(args) <= 4):
         # i18n: "pad" is a keyword
         raise error.ParseError(_("pad() expects two to four arguments"))
 
     width = evalinteger(context, mapping, args[1],
                         # i18n: "pad" is a keyword
                         _("pad() expects an integer width"))
 
     text = evalstring(context, mapping, args[0])
 
     right = False
     fillchar = ' '
     if len(args) > 2:
         fillchar = evalstring(context, mapping, args[2])
     if len(args) > 3:
         right = util.parsebool(args[3][1])
 
     if right:
         return text.rjust(width, fillchar)
     else:
         return text.ljust(width, fillchar)
 
 @templatefunc('indent(text, indentchars[, firstline])')
 def indent(context, mapping, args):
     """Indents all non-empty lines
     with the characters given in the indentchars string. An optional
     third parameter will override the indent for the first line only
     if present."""
     if not (2 <= len(args) <= 3):
         # i18n: "indent" is a keyword
         raise error.ParseError(_("indent() expects two or three arguments"))
 
     text = evalstring(context, mapping, args[0])
     indent = evalstring(context, mapping, args[1])
 
     if len(args) == 3:
         firstline = evalstring(context, mapping, args[2])
     else:
         firstline = indent
 
     # the indent function doesn't indent the first line, so we do it here
     return templatefilters.indent(firstline + text, indent)
 
 @templatefunc('get(dict, key)')
 def get(context, mapping, args):
     """Get an attribute/key from an object. Some keywords
     are complex types. This function allows you to obtain the value of an
     attribute on these types."""
     if len(args) != 2:
         # i18n: "get" is a keyword
         raise error.ParseError(_("get() expects two arguments"))
 
     dictarg = evalfuncarg(context, mapping, args[0])
     if not util.safehasattr(dictarg, 'get'):
         # i18n: "get" is a keyword
         raise error.ParseError(_("get() expects a dict as first argument"))
 
     key = evalfuncarg(context, mapping, args[1])
     return dictarg.get(key)
 
 @templatefunc('if(expr, then[, else])')
 def if_(context, mapping, args):
     """Conditionally execute based on the result of
     an expression."""
     if not (2 <= len(args) <= 3):
         # i18n: "if" is a keyword
         raise error.ParseError(_("if expects two or three arguments"))
 
     test = evalstring(context, mapping, args[0])
     if test:
         yield args[1][0](context, mapping, args[1][1])
     elif len(args) == 3:
         yield args[2][0](context, mapping, args[2][1])
 
 @templatefunc('ifcontains(search, thing, then[, else])')
 def ifcontains(context, mapping, args):
     """Conditionally execute based
     on whether the item "search" is in "thing"."""
     if not (3 <= len(args) <= 4):
         # i18n: "ifcontains" is a keyword
         raise error.ParseError(_("ifcontains expects three or four arguments"))
 
     item = evalstring(context, mapping, args[0])
     items = evalfuncarg(context, mapping, args[1])
 
     if item in items:
         yield args[2][0](context, mapping, args[2][1])
     elif len(args) == 4:
         yield args[3][0](context, mapping, args[3][1])
 
 @templatefunc('ifeq(expr1, expr2, then[, else])')
 def ifeq(context, mapping, args):
     """Conditionally execute based on
     whether 2 items are equivalent."""
     if not (3 <= len(args) <= 4):
         # i18n: "ifeq" is a keyword
         raise error.ParseError(_("ifeq expects three or four arguments"))
 
     test = evalstring(context, mapping, args[0])
     match = evalstring(context, mapping, args[1])
     if test == match:
         yield args[2][0](context, mapping, args[2][1])
     elif len(args) == 4:
         yield args[3][0](context, mapping, args[3][1])
 
 @templatefunc('join(list, sep)')
 def join(context, mapping, args):
     """Join items in a list with a delimiter."""
     if not (1 <= len(args) <= 2):
         # i18n: "join" is a keyword
         raise error.ParseError(_("join expects one or two arguments"))
 
     joinset = args[0][0](context, mapping, args[0][1])
     if util.safehasattr(joinset, 'itermaps'):
         jf = joinset.joinfmt
         joinset = [jf(x) for x in joinset.itermaps()]
 
     joiner = " "
     if len(args) > 1:
         joiner = evalstring(context, mapping, args[1])
 
     first = True
     for x in joinset:
         if first:
             first = False
         else:
             yield joiner
         yield x
 
 @templatefunc('label(label, expr)')
 def label(context, mapping, args):
     """Apply a label to generated content. Content with
     a label applied can result in additional post-processing, such as
     automatic colorization."""
     if len(args) != 2:
         # i18n: "label" is a keyword
         raise error.ParseError(_("label expects two arguments"))
 
     ui = mapping['ui']
     thing = evalstring(context, mapping, args[1])
     # preserve unknown symbol as literal so effects like 'red', 'bold',
     # etc. don't need to be quoted
     label = evalstringliteral(context, mapping, args[0])
 
     return ui.label(thing, label)
 
 @templatefunc('latesttag([pattern])')
 def latesttag(context, mapping, args):
     """The global tags matching the given pattern on the
     most recent globally tagged ancestor of this changeset."""
     if len(args) > 1:
         # i18n: "latesttag" is a keyword
         raise error.ParseError(_("latesttag expects at most one argument"))
 
     pattern = None
     if len(args) == 1:
         pattern = evalstring(context, mapping, args[0])
 
     return templatekw.showlatesttags(pattern, **mapping)
 
 @templatefunc('localdate(date[, tz])')
 def localdate(context, mapping, args):
     """Converts a date to the specified timezone.
     The default is local date."""
     if not (1 <= len(args) <= 2):
         # i18n: "localdate" is a keyword
         raise error.ParseError(_("localdate expects one or two arguments"))
 
     date = evalfuncarg(context, mapping, args[0])
     try:
         date = util.parsedate(date)
     except AttributeError:  # not str nor date tuple
         # i18n: "localdate" is a keyword
         raise error.ParseError(_("localdate expects a date information"))
     if len(args) >= 2:
         tzoffset = None
         tz = evalfuncarg(context, mapping, args[1])
         if isinstance(tz, str):
             tzoffset = util.parsetimezone(tz)
         if tzoffset is None:
             try:
                 tzoffset = int(tz)
             except (TypeError, ValueError):
                 # i18n: "localdate" is a keyword
                 raise error.ParseError(_("localdate expects a timezone"))
     else:
         tzoffset = util.makedate()[1]
     return (date[0], tzoffset)
 
 @templatefunc('revset(query[, formatargs...])')
 def revset(context, mapping, args):
     """Execute a revision set query. See
     :hg:`help revset`."""
     if not len(args) > 0:
         # i18n: "revset" is a keyword
         raise error.ParseError(_("revset expects one or more arguments"))
 
     raw = evalstring(context, mapping, args[0])
     ctx = mapping['ctx']
     repo = ctx.repo()
 
     def query(expr):
         m = revsetmod.match(repo.ui, expr)
         return m(repo)
 
     if len(args) > 1:
         formatargs = [evalfuncarg(context, mapping, a) for a in args[1:]]
         revs = query(revsetmod.formatspec(raw, *formatargs))
         revs = list(revs)
     else:
         revsetcache = mapping['cache'].setdefault("revsetcache", {})
         if raw in revsetcache:
             revs = revsetcache[raw]
         else:
             revs = query(raw)
             revs = list(revs)
             revsetcache[raw] = revs
 
     return templatekw.showrevslist("revision", revs, **mapping)
 
 @templatefunc('rstdoc(text, style)')
 def rstdoc(context, mapping, args):
     """Format ReStructuredText."""
     if len(args) != 2:
         # i18n: "rstdoc" is a keyword
         raise error.ParseError(_("rstdoc expects two arguments"))
 
     text = evalstring(context, mapping, args[0])
     style = evalstring(context, mapping, args[1])
 
     return minirst.format(text, style=style, keep=['verbose'])
 
 @templatefunc('shortest(node, minlength=4)')
 def shortest(context, mapping, args):
     """Obtain the shortest representation of
     a node."""
     if not (1 <= len(args) <= 2):
         # i18n: "shortest" is a keyword
         raise error.ParseError(_("shortest() expects one or two arguments"))
 
     node = evalstring(context, mapping, args[0])
 
     minlength = 4
     if len(args) > 1:
         minlength = evalinteger(context, mapping, args[1],
                                 # i18n: "shortest" is a keyword
                                 _("shortest() expects an integer minlength"))
 
     cl = mapping['ctx']._repo.changelog
     def isvalid(test):
         try:
             try:
                 cl.index.partialmatch(test)
             except AttributeError:
                 # Pure mercurial doesn't support partialmatch on the index.
                 # Fallback to the slow way.
                 if cl._partialmatch(test) is None:
                     return False
 
             try:
                 i = int(test)
                 # if we are a pure int, then starting with zero will not be
                 # confused as a rev; or, obviously, if the int is larger than
                 # the value of the tip rev
                 if test[0] == '0' or i > len(cl):
                     return True
                 return False
             except ValueError:
                 return True
         except error.RevlogError:
             return False
 
     shortest = node
     startlength = max(6, minlength)
     length = startlength
     while True:
         test = node[:length]
         if isvalid(test):
             shortest = test
             if length == minlength or length > startlength:
                 return shortest
             length -= 1
         else:
             length += 1
             if len(shortest) <= length:
                 return shortest
 
 @templatefunc('strip(text[, chars])')
 def strip(context, mapping, args):
     """Strip characters from a string. By default,
     strips all leading and trailing whitespace."""
     if not (1 <= len(args) <= 2):
         # i18n: "strip" is a keyword
         raise error.ParseError(_("strip expects one or two arguments"))
 
     text = evalstring(context, mapping, args[0])
     if len(args) == 2:
         chars = evalstring(context, mapping, args[1])
         return text.strip(chars)
     return text.strip()
 
 @templatefunc('sub(pattern, replacement, expression)')
 def sub(context, mapping, args):
     """Perform text substitution
     using regular expressions."""
     if len(args) != 3:
         # i18n: "sub" is a keyword
         raise error.ParseError(_("sub expects three arguments"))
 
     pat = evalstring(context, mapping, args[0])
     rpl = evalstring(context, mapping, args[1])
     src = evalstring(context, mapping, args[2])
     try:
         patre = re.compile(pat)
     except re.error:
         # i18n: "sub" is a keyword
         raise error.ParseError(_("sub got an invalid pattern: %s") % pat)
     try:
         yield patre.sub(rpl, src)
     except re.error:
         # i18n: "sub" is a keyword
         raise error.ParseError(_("sub got an invalid replacement: %s") % rpl)
 
 @templatefunc('startswith(pattern, text)')
 def startswith(context, mapping, args):
     """Returns the value from the "text" argument
     if it begins with the content from the "pattern" argument."""
     if len(args) != 2:
         # i18n: "startswith" is a keyword
         raise error.ParseError(_("startswith expects two arguments"))
 
     patn = evalstring(context, mapping, args[0])
     text = evalstring(context, mapping, args[1])
     if text.startswith(patn):
         return text
     return ''
 
 @templatefunc('word(number, text[, separator])')
 def word(context, mapping, args):
     """Return the nth word from a string."""
     if not (2 <= len(args) <= 3):
         # i18n: "word" is a keyword
         raise error.ParseError(_("word expects two or three arguments, got %d")
                                % len(args))
 
     num = evalinteger(context, mapping, args[0],
                       # i18n: "word" is a keyword
                       _("word expects an integer index"))
     text = evalstring(context, mapping, args[1])
     if len(args) == 3:
         splitter = evalstring(context, mapping, args[2])
     else:
         splitter = None
 
     tokens = text.split(splitter)
     if num >= len(tokens) or num < -len(tokens):
         return ''
     else:
         return tokens[num]
 
 # methods to interpret function arguments or inner expressions (e.g. {_(x)})
 exprmethods = {
     "integer": lambda e, c: (runinteger, e[1]),
     "string": lambda e, c: (runstring, e[1]),
     "symbol": lambda e, c: (runsymbol, e[1]),
     "template": buildtemplate,
     "group": lambda e, c: compileexp(e[1], c, exprmethods),
 #    ".": buildmember,
     "|": buildfilter,
     "%": buildmap,
     "func": buildfunc,
     }
 
 # methods to interpret top-level template (e.g. {x}, {x|_}, {x % "y"})
 methods = exprmethods.copy()
 methods["integer"] = exprmethods["symbol"]  # '{1}' as variable
 
 class _aliasrules(parser.basealiasrules):
     """Parsing and expansion rule set of template aliases"""
     _section = _('template alias')
     _parse = staticmethod(_parseexpr)
 
     @staticmethod
     def _trygetfunc(tree):
         """Return (name, args) if tree is func(...) or ...|filter; otherwise
         None"""
         if tree[0] == 'func' and tree[1][0] == 'symbol':
             return tree[1][1], getlist(tree[2])
         if tree[0] == '|' and tree[2][0] == 'symbol':
             return tree[2][1], [tree[1]]
 
 def expandaliases(tree, aliases):
     """Return new tree of aliases are expanded"""
     aliasmap = _aliasrules.buildmap(aliases)
     return _aliasrules.expand(aliasmap, tree)
 
 # template engine
 
 stringify = templatefilters.stringify
 
 def _flatten(thing):
     '''yield a single stream from a possibly nested set of iterators'''
     if isinstance(thing, str):
         yield thing
     elif not util.safehasattr(thing, '__iter__'):
         if thing is not None:
             yield str(thing)
     else:
         for i in thing:
             if isinstance(i, str):
                 yield i
             elif not util.safehasattr(i, '__iter__'):
                 if i is not None:
                     yield str(i)
             elif i is not None:
                 for j in _flatten(i):
                     yield j
 
 def unquotestring(s):
     '''unwrap quotes if any; otherwise returns unmodified string'''
     if len(s) < 2 or s[0] not in "'\"" or s[0] != s[-1]:
         return s
     return s[1:-1]
 
 class engine(object):
     '''template expansion engine.
 
     template expansion works like this. a map file contains key=value
     pairs. if value is quoted, it is treated as string. otherwise, it
     is treated as name of template file.
 
     templater is asked to expand a key in map. it looks up key, and
     looks for strings like this: {foo}. it expands {foo} by looking up
     foo in map, and substituting it. expansion is recursive: it stops
     when there is no more {foo} to replace.
 
     expansion also allows formatting and filtering.
 
     format uses key to expand each item in list. syntax is
     {key%format}.
 
     filter uses function to transform value. syntax is
     {key|filter1|filter2|...}.'''
 
-    def __init__(self, loader, filters=None, defaults=None):
+    def __init__(self, loader, filters=None, defaults=None, aliases=()):
         self._loader = loader
         if filters is None:
             filters = {}
         self._filters = filters
         if defaults is None:
             defaults = {}
         self._defaults = defaults
+        self._aliasmap = _aliasrules.buildmap(aliases)
         self._cache = {}  # key: (func, data)
 
     def _load(self, t):
         '''load, parse, and cache a template'''
         if t not in self._cache:
             # put poison to cut recursion while compiling 't'
             self._cache[t] = (_runrecursivesymbol, t)
             try:
                 x = parse(self._loader(t))
+                if self._aliasmap:
+                    x = _aliasrules.expand(self._aliasmap, x)
                 self._cache[t] = compileexp(x, self, methods)
             except: # re-raises
                 del self._cache[t]
                 raise
         return self._cache[t]
 
     def process(self, t, mapping):
         '''Perform expansion. t is name of map element to expand.
         mapping contains added elements for use during expansion. Is a
         generator.'''
         func, data = self._load(t)
         return _flatten(func(self, mapping, data))
 
 engines = {'default': engine}
 
 def stylelist():
     paths = templatepaths()
     if not paths:
         return _('no templates found, try `hg debuginstall` for more info')
     dirlist = os.listdir(paths[0])
     stylelist = []
     for file in dirlist:
         split = file.split(".")
         if split[-1] in ('orig', 'rej'):
             continue
         if split[0] == "map-cmdline":
             stylelist.append(split[1])
     return ", ".join(sorted(stylelist))
 
 def _readmapfile(mapfile):
     """Load template elements from the given map file"""
     if not os.path.exists(mapfile):
         raise error.Abort(_("style '%s' not found") % mapfile,
                           hint=_("available styles: %s") % stylelist())
 
     base = os.path.dirname(mapfile)
     conf = config.config(includepaths=templatepaths())
     conf.read(mapfile)
 
     cache = {}
     tmap = {}
     for key, val in conf[''].items():
         if not val:
             raise error.ParseError(_('missing value'), conf.source('', key))
         if val[0] in "'\"":
             if val[0] != val[-1]:
                 raise error.ParseError(_('unmatched quotes'),
                                        conf.source('', key))
             cache[key] = unquotestring(val)
         else:
             val = 'default', val
             if ':' in val[1]:
                 val = val[1].split(':', 1)
             tmap[key] = val[0], os.path.join(base, val[1])
     return cache, tmap
 
 class TemplateNotFound(error.Abort):
     pass
 
 class templater(object):
 
-    def __init__(self, filters=None, defaults=None, cache=None,
+    def __init__(self, filters=None, defaults=None, cache=None, aliases=(),
                  minchunk=1024, maxchunk=65536):
         '''set up template engine.
         filters is dict of functions. each transforms a value into another.
-        defaults is dict of default map definitions.'''
+        defaults is dict of default map definitions.
+        aliases is list of alias (name, replacement) pairs.
+        '''
         if filters is None:
             filters = {}
         if defaults is None:
             defaults = {}
         if cache is None:
             cache = {}
         self.cache = cache.copy()
         self.map = {}
         self.filters = templatefilters.filters.copy()
         self.filters.update(filters)
         self.defaults = defaults
+        self._aliases = aliases
         self.minchunk, self.maxchunk = minchunk, maxchunk
         self.ecache = {}
 
     @classmethod
     def frommapfile(cls, mapfile, filters=None, defaults=None, cache=None,
                     minchunk=1024, maxchunk=65536):
         """Create templater from the specified map file"""
-        t = cls(filters, defaults, cache, minchunk, maxchunk)
+        t = cls(filters, defaults, cache, [], minchunk, maxchunk)
         cache, tmap = _readmapfile(mapfile)
         t.cache.update(cache)
         t.map = tmap
         return t
 
     def __contains__(self, key):
         return key in self.cache or key in self.map
 
     def load(self, t):
         '''Get the template for the given template name. Use a local cache.'''
         if t not in self.cache:
             try:
                 self.cache[t] = util.readfile(self.map[t][1])
             except KeyError as inst:
                 raise TemplateNotFound(_('"%s" not in template map') %
                                        inst.args[0])
             except IOError as inst:
                 raise IOError(inst.args[0], _('template file %s: %s') %
                               (self.map[t][1], inst.args[1]))
         return self.cache[t]
 
     def __call__(self, t, **mapping):
         ttype = t in self.map and self.map[t][0] or 'default'
         if ttype not in self.ecache:
             try:
                 ecls = engines[ttype]
             except KeyError:
                 raise error.Abort(_('invalid template engine: %s') % ttype)
-            self.ecache[ttype] = ecls(self.load, self.filters, self.defaults)
+            self.ecache[ttype] = ecls(self.load, self.filters, self.defaults,
+                                      self._aliases)
         proc = self.ecache[ttype]
 
         stream = proc.process(t, mapping)
         if self.minchunk:
             stream = util.increasingchunks(stream, min=self.minchunk,
                                            max=self.maxchunk)
         return stream
 
 def templatepaths():
     '''return locations used for template files.'''
     pathsrel = ['templates']
     paths = [os.path.normpath(os.path.join(util.datapath, f))
              for f in pathsrel]
     return [p for p in paths if os.path.isdir(p)]
 
 def templatepath(name):
     '''return location of template file. returns None if not found.'''
     for p in templatepaths():
         f = os.path.join(p, name)
         if os.path.exists(f):
             return f
     return None
 
 def stylemap(styles, paths=None):
     """Return path to mapfile for a given style.
 
     Searches mapfile in the following locations:
     1. templatepath/style/map
     2. templatepath/map-style
     3. templatepath/map
     """
 
     if paths is None:
         paths = templatepaths()
     elif isinstance(paths, str):
         paths = [paths]
 
     if isinstance(styles, str):
         styles = [styles]
 
     for style in styles:
         # only plain name is allowed to honor template paths
         if (not style
             or style in (os.curdir, os.pardir)
             or os.sep in style
             or os.altsep and os.altsep in style):
             continue
         locations = [os.path.join(style, 'map'), 'map-' + style]
         locations.append('map')
 
         for path in paths:
             for location in locations:
                 mapfile = os.path.join(path, location)
                 if os.path.isfile(mapfile):
                     return style, mapfile
 
     raise RuntimeError("No hgweb templates found in %r" % paths)
 
 def loadfunction(ui, extname, registrarobj):
     """Load template function from specified registrarobj
     """
     for name, func in registrarobj._table.iteritems():
         funcs[name] = func
 
 # tell hggettext to extract docstrings from these functions:
 i18nfunctions = funcs.values()

tests/test-command-template.t

@@ -1,3812 +1,3833 b''
   $ hg init a
   $ cd a
   $ echo a > a
   $ hg add a
   $ echo line 1 > b
   $ echo line 2 >> b
   $ hg commit -l b -d '1000000 0' -u 'User Name <user@hostname>'
 
   $ hg add b
   $ echo other 1 > c
   $ echo other 2 >> c
   $ echo >> c
   $ echo other 3 >> c
   $ hg commit -l c -d '1100000 0' -u 'A. N. Other <other@place>'
 
   $ hg add c
   $ hg commit -m 'no person' -d '1200000 0' -u 'other@place'
   $ echo c >> c
   $ hg commit -m 'no user, no domain' -d '1300000 0' -u 'person'
 
   $ echo foo > .hg/branch
   $ hg commit -m 'new branch' -d '1400000 0' -u 'person'
 
   $ hg co -q 3
   $ echo other 4 >> d
   $ hg add d
   $ hg commit -m 'new head' -d '1500000 0' -u 'person'
 
   $ hg merge -q foo
   $ hg commit -m 'merge' -d '1500001 0' -u 'person'
 
 Second branch starting at nullrev:
 
   $ hg update null
   0 files updated, 0 files merged, 4 files removed, 0 files unresolved
   $ echo second > second
   $ hg add second
   $ hg commit -m second -d '1000000 0' -u 'User Name <user@hostname>'
   created new head
 
   $ echo third > third
   $ hg add third
   $ hg mv second fourth
   $ hg commit -m third -d "2020-01-01 10:01"
 
   $ hg log --template '{join(file_copies, ",\n")}\n' -r .
   fourth (second)
   $ hg log -T '{file_copies % "{source} -> {name}\n"}' -r .
   second -> fourth
   $ hg log -T '{rev} {ifcontains("fourth", file_copies, "t", "f")}\n' -r .:7
   8 t
   7 f
 
 Working-directory revision has special identifiers, though they are still
 experimental:
 
   $ hg log -r 'wdir()' -T '{rev}:{node}\n'
   2147483647:ffffffffffffffffffffffffffffffffffffffff
 
 Some keywords are invalid for working-directory revision, but they should
 never cause crash:
 
   $ hg log -r 'wdir()' -T '{manifest}\n'
   
 
 Quoting for ui.logtemplate
 
   $ hg tip --config "ui.logtemplate={rev}\n"
   8
   $ hg tip --config "ui.logtemplate='{rev}\n'"
   8
   $ hg tip --config 'ui.logtemplate="{rev}\n"'
   8
   $ hg tip --config 'ui.logtemplate=n{rev}\n'
   n8
 
 Make sure user/global hgrc does not affect tests
 
   $ echo '[ui]' > .hg/hgrc
   $ echo 'logtemplate =' >> .hg/hgrc
   $ echo 'style =' >> .hg/hgrc
 
 Add some simple styles to settings
 
   $ echo '[templates]' >> .hg/hgrc
   $ printf 'simple = "{rev}\\n"\n' >> .hg/hgrc
   $ printf 'simple2 = {rev}\\n\n' >> .hg/hgrc
 
   $ hg log -l1 -Tsimple
   8
   $ hg log -l1 -Tsimple2
   8
 
 Test templates and style maps in files:
 
   $ echo "{rev}" > tmpl
   $ hg log -l1 -T./tmpl
   8
   $ hg log -l1 -Tblah/blah
   blah/blah (no-eol)
 
   $ printf 'changeset = "{rev}\\n"\n' > map-simple
   $ hg log -l1 -T./map-simple
   8
 
 Template should precede style option
 
   $ hg log -l1 --style default -T '{rev}\n'
   8
 
 Add a commit with empty description, to ensure that the templates
 below will omit the description line.
 
   $ echo c >> c
   $ hg add c
   $ hg commit -qm ' '
 
 Default style is like normal output. Phases style should be the same
 as default style, except for extra phase lines.
 
   $ hg log > log.out
   $ hg log --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
   $ hg log -T phases > phases.out
   $ diff -U 0 log.out phases.out | egrep -v '^---|^\+\+\+|^@@'
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
 
   $ hg log -v > log.out
   $ hg log -v --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
   $ hg log -v -T phases > phases.out
   $ diff -U 0 log.out phases.out | egrep -v '^---|^\+\+\+|^@@'
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
   +phase:       draft
 
   $ hg log -q > log.out
   $ hg log -q --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
   $ hg log -q -T phases > phases.out
   $ cmp log.out phases.out || diff -u log.out phases.out
 
   $ hg log --debug > log.out
   $ hg log --debug --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
   $ hg log --debug -T phases > phases.out
   $ cmp log.out phases.out || diff -u log.out phases.out
 
 Default style of working-directory revision should also be the same (but
 date may change while running tests):
 
   $ hg log -r 'wdir()' | sed 's|^date:.*|date:|' > log.out
   $ hg log -r 'wdir()' --style default | sed 's|^date:.*|date:|' > style.out
   $ cmp log.out style.out || diff -u log.out style.out
 
   $ hg log -r 'wdir()' -v | sed 's|^date:.*|date:|' > log.out
   $ hg log -r 'wdir()' -v --style default | sed 's|^date:.*|date:|' > style.out
   $ cmp log.out style.out || diff -u log.out style.out
 
   $ hg log -r 'wdir()' -q > log.out
   $ hg log -r 'wdir()' -q --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
 
   $ hg log -r 'wdir()' --debug | sed 's|^date:.*|date:|' > log.out
   $ hg log -r 'wdir()' --debug --style default \
   > | sed 's|^date:.*|date:|' > style.out
   $ cmp log.out style.out || diff -u log.out style.out
 
 Default style should also preserve color information (issue2866):
 
   $ cp $HGRCPATH $HGRCPATH-bak
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > color=
   > EOF
 
   $ hg --color=debug log > log.out
   $ hg --color=debug log --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
   $ hg --color=debug log -T phases > phases.out
   $ diff -U 0 log.out phases.out | egrep -v '^---|^\+\+\+|^@@'
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
 
   $ hg --color=debug -v log > log.out
   $ hg --color=debug -v log --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
   $ hg --color=debug -v log -T phases > phases.out
   $ diff -U 0 log.out phases.out | egrep -v '^---|^\+\+\+|^@@'
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
   +[log.phase|phase:       draft]
 
   $ hg --color=debug -q log > log.out
   $ hg --color=debug -q log --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
   $ hg --color=debug -q log -T phases > phases.out
   $ cmp log.out phases.out || diff -u log.out phases.out
 
   $ hg --color=debug --debug log > log.out
   $ hg --color=debug --debug log --style default > style.out
   $ cmp log.out style.out || diff -u log.out style.out
   $ hg --color=debug --debug log -T phases > phases.out
   $ cmp log.out phases.out || diff -u log.out phases.out
 
   $ mv $HGRCPATH-bak $HGRCPATH
 
 Remove commit with empty commit message, so as to not pollute further
 tests.
 
   $ hg --config extensions.strip= strip -q .
 
 Revision with no copies (used to print a traceback):
 
   $ hg tip -v --template '\n'
   
 
 Compact style works:
 
   $ hg log -Tcompact
   8[tip]   95c24699272e   2020-01-01 10:01 +0000   test
     third
   
   7:-1   29114dbae42b   1970-01-12 13:46 +0000   user
     second
   
   6:5,4   d41e714fe50d   1970-01-18 08:40 +0000   person
     merge
   
   5:3   13207e5a10d9   1970-01-18 08:40 +0000   person
     new head
   
   4   bbe44766e73d   1970-01-17 04:53 +0000   person
     new branch
   
   3   10e46f2dcbf4   1970-01-16 01:06 +0000   person
     no user, no domain
   
   2   97054abb4ab8   1970-01-14 21:20 +0000   other
     no person
   
   1   b608e9d1a3f0   1970-01-13 17:33 +0000   other
     other 1
   
   0   1e4e1b8f71e0   1970-01-12 13:46 +0000   user
     line 1
   
 
   $ hg log -v --style compact
   8[tip]   95c24699272e   2020-01-01 10:01 +0000   test
     third
   
   7:-1   29114dbae42b   1970-01-12 13:46 +0000   User Name <user@hostname>
     second
   
   6:5,4   d41e714fe50d   1970-01-18 08:40 +0000   person
     merge
   
   5:3   13207e5a10d9   1970-01-18 08:40 +0000   person
     new head
   
   4   bbe44766e73d   1970-01-17 04:53 +0000   person
     new branch
   
   3   10e46f2dcbf4   1970-01-16 01:06 +0000   person
     no user, no domain
   
   2   97054abb4ab8   1970-01-14 21:20 +0000   other@place
     no person
   
   1   b608e9d1a3f0   1970-01-13 17:33 +0000   A. N. Other <other@place>
     other 1
   other 2
   
   other 3
   
   0   1e4e1b8f71e0   1970-01-12 13:46 +0000   User Name <user@hostname>
     line 1
   line 2
   
 
   $ hg log --debug --style compact
   8[tip]:7,-1   95c24699272e   2020-01-01 10:01 +0000   test
     third
   
   7:-1,-1   29114dbae42b   1970-01-12 13:46 +0000   User Name <user@hostname>
     second
   
   6:5,4   d41e714fe50d   1970-01-18 08:40 +0000   person
     merge
   
   5:3,-1   13207e5a10d9   1970-01-18 08:40 +0000   person
     new head
   
   4:3,-1   bbe44766e73d   1970-01-17 04:53 +0000   person
     new branch
   
   3:2,-1   10e46f2dcbf4   1970-01-16 01:06 +0000   person
     no user, no domain
   
   2:1,-1   97054abb4ab8   1970-01-14 21:20 +0000   other@place
     no person
   
   1:0,-1   b608e9d1a3f0   1970-01-13 17:33 +0000   A. N. Other <other@place>
     other 1
   other 2
   
   other 3
   
   0:-1,-1   1e4e1b8f71e0   1970-01-12 13:46 +0000   User Name <user@hostname>
     line 1
   line 2
   
 
 Test xml styles:
 
   $ hg log --style xml -r 'not all()'
   <?xml version="1.0"?>
   <log>
   </log>
 
   $ hg log --style xml
   <?xml version="1.0"?>
   <log>
   <logentry revision="8" node="95c24699272ef57d062b8bccc32c878bf841784a">
   <tag>tip</tag>
   <author email="test">test</author>
   <date>2020-01-01T10:01:00+00:00</date>
   <msg xml:space="preserve">third</msg>
   </logentry>
   <logentry revision="7" node="29114dbae42b9f078cf2714dbe3a86bba8ec7453">
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="user@hostname">User Name</author>
   <date>1970-01-12T13:46:40+00:00</date>
   <msg xml:space="preserve">second</msg>
   </logentry>
   <logentry revision="6" node="d41e714fe50d9e4a5f11b4d595d543481b5f980b">
   <parent revision="5" node="13207e5a10d9fd28ec424934298e176197f2c67f" />
   <parent revision="4" node="bbe44766e73d5f11ed2177f1838de10c53ef3e74" />
   <author email="person">person</author>
   <date>1970-01-18T08:40:01+00:00</date>
   <msg xml:space="preserve">merge</msg>
   </logentry>
   <logentry revision="5" node="13207e5a10d9fd28ec424934298e176197f2c67f">
   <parent revision="3" node="10e46f2dcbf4823578cf180f33ecf0b957964c47" />
   <author email="person">person</author>
   <date>1970-01-18T08:40:00+00:00</date>
   <msg xml:space="preserve">new head</msg>
   </logentry>
   <logentry revision="4" node="bbe44766e73d5f11ed2177f1838de10c53ef3e74">
   <branch>foo</branch>
   <author email="person">person</author>
   <date>1970-01-17T04:53:20+00:00</date>
   <msg xml:space="preserve">new branch</msg>
   </logentry>
   <logentry revision="3" node="10e46f2dcbf4823578cf180f33ecf0b957964c47">
   <author email="person">person</author>
   <date>1970-01-16T01:06:40+00:00</date>
   <msg xml:space="preserve">no user, no domain</msg>
   </logentry>
   <logentry revision="2" node="97054abb4ab824450e9164180baf491ae0078465">
   <author email="other@place">other</author>
   <date>1970-01-14T21:20:00+00:00</date>
   <msg xml:space="preserve">no person</msg>
   </logentry>
   <logentry revision="1" node="b608e9d1a3f0273ccf70fb85fd6866b3482bf965">
   <author email="other@place">A. N. Other</author>
   <date>1970-01-13T17:33:20+00:00</date>
   <msg xml:space="preserve">other 1
   other 2
   
   other 3</msg>
   </logentry>
   <logentry revision="0" node="1e4e1b8f71e05681d422154f5421e385fec3454f">
   <author email="user@hostname">User Name</author>
   <date>1970-01-12T13:46:40+00:00</date>
   <msg xml:space="preserve">line 1
   line 2</msg>
   </logentry>
   </log>
 
   $ hg log -v --style xml
   <?xml version="1.0"?>
   <log>
   <logentry revision="8" node="95c24699272ef57d062b8bccc32c878bf841784a">
   <tag>tip</tag>
   <author email="test">test</author>
   <date>2020-01-01T10:01:00+00:00</date>
   <msg xml:space="preserve">third</msg>
   <paths>
   <path action="A">fourth</path>
   <path action="A">third</path>
   <path action="R">second</path>
   </paths>
   <copies>
   <copy source="second">fourth</copy>
   </copies>
   </logentry>
   <logentry revision="7" node="29114dbae42b9f078cf2714dbe3a86bba8ec7453">
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="user@hostname">User Name</author>
   <date>1970-01-12T13:46:40+00:00</date>
   <msg xml:space="preserve">second</msg>
   <paths>
   <path action="A">second</path>
   </paths>
   </logentry>
   <logentry revision="6" node="d41e714fe50d9e4a5f11b4d595d543481b5f980b">
   <parent revision="5" node="13207e5a10d9fd28ec424934298e176197f2c67f" />
   <parent revision="4" node="bbe44766e73d5f11ed2177f1838de10c53ef3e74" />
   <author email="person">person</author>
   <date>1970-01-18T08:40:01+00:00</date>
   <msg xml:space="preserve">merge</msg>
   <paths>
   </paths>
   </logentry>
   <logentry revision="5" node="13207e5a10d9fd28ec424934298e176197f2c67f">
   <parent revision="3" node="10e46f2dcbf4823578cf180f33ecf0b957964c47" />
   <author email="person">person</author>
   <date>1970-01-18T08:40:00+00:00</date>
   <msg xml:space="preserve">new head</msg>
   <paths>
   <path action="A">d</path>
   </paths>
   </logentry>
   <logentry revision="4" node="bbe44766e73d5f11ed2177f1838de10c53ef3e74">
   <branch>foo</branch>
   <author email="person">person</author>
   <date>1970-01-17T04:53:20+00:00</date>
   <msg xml:space="preserve">new branch</msg>
   <paths>
   </paths>
   </logentry>
   <logentry revision="3" node="10e46f2dcbf4823578cf180f33ecf0b957964c47">
   <author email="person">person</author>
   <date>1970-01-16T01:06:40+00:00</date>
   <msg xml:space="preserve">no user, no domain</msg>
   <paths>
   <path action="M">c</path>
   </paths>
   </logentry>
   <logentry revision="2" node="97054abb4ab824450e9164180baf491ae0078465">
   <author email="other@place">other</author>
   <date>1970-01-14T21:20:00+00:00</date>
   <msg xml:space="preserve">no person</msg>
   <paths>
   <path action="A">c</path>
   </paths>
   </logentry>
   <logentry revision="1" node="b608e9d1a3f0273ccf70fb85fd6866b3482bf965">
   <author email="other@place">A. N. Other</author>
   <date>1970-01-13T17:33:20+00:00</date>
   <msg xml:space="preserve">other 1
   other 2
   
   other 3</msg>
   <paths>
   <path action="A">b</path>
   </paths>
   </logentry>
   <logentry revision="0" node="1e4e1b8f71e05681d422154f5421e385fec3454f">
   <author email="user@hostname">User Name</author>
   <date>1970-01-12T13:46:40+00:00</date>
   <msg xml:space="preserve">line 1
   line 2</msg>
   <paths>
   <path action="A">a</path>
   </paths>
   </logentry>
   </log>
 
   $ hg log --debug --style xml
   <?xml version="1.0"?>
   <log>
   <logentry revision="8" node="95c24699272ef57d062b8bccc32c878bf841784a">
   <tag>tip</tag>
   <parent revision="7" node="29114dbae42b9f078cf2714dbe3a86bba8ec7453" />
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="test">test</author>
   <date>2020-01-01T10:01:00+00:00</date>
   <msg xml:space="preserve">third</msg>
   <paths>
   <path action="A">fourth</path>
   <path action="A">third</path>
   <path action="R">second</path>
   </paths>
   <copies>
   <copy source="second">fourth</copy>
   </copies>
   <extra key="branch">default</extra>
   </logentry>
   <logentry revision="7" node="29114dbae42b9f078cf2714dbe3a86bba8ec7453">
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="user@hostname">User Name</author>
   <date>1970-01-12T13:46:40+00:00</date>
   <msg xml:space="preserve">second</msg>
   <paths>
   <path action="A">second</path>
   </paths>
   <extra key="branch">default</extra>
   </logentry>
   <logentry revision="6" node="d41e714fe50d9e4a5f11b4d595d543481b5f980b">
   <parent revision="5" node="13207e5a10d9fd28ec424934298e176197f2c67f" />
   <parent revision="4" node="bbe44766e73d5f11ed2177f1838de10c53ef3e74" />
   <author email="person">person</author>
   <date>1970-01-18T08:40:01+00:00</date>
   <msg xml:space="preserve">merge</msg>
   <paths>
   </paths>
   <extra key="branch">default</extra>
   </logentry>
   <logentry revision="5" node="13207e5a10d9fd28ec424934298e176197f2c67f">
   <parent revision="3" node="10e46f2dcbf4823578cf180f33ecf0b957964c47" />
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="person">person</author>
   <date>1970-01-18T08:40:00+00:00</date>
   <msg xml:space="preserve">new head</msg>
   <paths>
   <path action="A">d</path>
   </paths>
   <extra key="branch">default</extra>
   </logentry>
   <logentry revision="4" node="bbe44766e73d5f11ed2177f1838de10c53ef3e74">
   <branch>foo</branch>
   <parent revision="3" node="10e46f2dcbf4823578cf180f33ecf0b957964c47" />
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="person">person</author>
   <date>1970-01-17T04:53:20+00:00</date>
   <msg xml:space="preserve">new branch</msg>
   <paths>
   </paths>
   <extra key="branch">foo</extra>
   </logentry>
   <logentry revision="3" node="10e46f2dcbf4823578cf180f33ecf0b957964c47">
   <parent revision="2" node="97054abb4ab824450e9164180baf491ae0078465" />
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="person">person</author>
   <date>1970-01-16T01:06:40+00:00</date>
   <msg xml:space="preserve">no user, no domain</msg>
   <paths>
   <path action="M">c</path>
   </paths>
   <extra key="branch">default</extra>
   </logentry>
   <logentry revision="2" node="97054abb4ab824450e9164180baf491ae0078465">
   <parent revision="1" node="b608e9d1a3f0273ccf70fb85fd6866b3482bf965" />
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="other@place">other</author>
   <date>1970-01-14T21:20:00+00:00</date>
   <msg xml:space="preserve">no person</msg>
   <paths>
   <path action="A">c</path>
   </paths>
   <extra key="branch">default</extra>
   </logentry>
   <logentry revision="1" node="b608e9d1a3f0273ccf70fb85fd6866b3482bf965">
   <parent revision="0" node="1e4e1b8f71e05681d422154f5421e385fec3454f" />
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="other@place">A. N. Other</author>
   <date>1970-01-13T17:33:20+00:00</date>
   <msg xml:space="preserve">other 1
   other 2
   
   other 3</msg>
   <paths>
   <path action="A">b</path>
   </paths>
   <extra key="branch">default</extra>
   </logentry>
   <logentry revision="0" node="1e4e1b8f71e05681d422154f5421e385fec3454f">
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <parent revision="-1" node="0000000000000000000000000000000000000000" />
   <author email="user@hostname">User Name</author>
   <date>1970-01-12T13:46:40+00:00</date>
   <msg xml:space="preserve">line 1
   line 2</msg>
   <paths>
   <path action="A">a</path>
   </paths>
   <extra key="branch">default</extra>
   </logentry>
   </log>
 
 
 Test JSON style:
 
   $ hg log -k nosuch -Tjson
   []
 
   $ hg log -qr . -Tjson
   [
    {
     "rev": 8,
     "node": "95c24699272ef57d062b8bccc32c878bf841784a"
    }
   ]
 
   $ hg log -vpr . -Tjson --stat
   [
    {
     "rev": 8,
     "node": "95c24699272ef57d062b8bccc32c878bf841784a",
     "branch": "default",
     "phase": "draft",
     "user": "test",
     "date": [1577872860, 0],
     "desc": "third",
     "bookmarks": [],
     "tags": ["tip"],
     "parents": ["29114dbae42b9f078cf2714dbe3a86bba8ec7453"],
     "files": ["fourth", "second", "third"],
     "diffstat": " fourth |  1 +\n second |  1 -\n third  |  1 +\n 3 files changed, 2 insertions(+), 1 deletions(-)\n",
     "diff": "diff -r 29114dbae42b -r 95c24699272e fourth\n--- /dev/null\tThu Jan 01 00:00:00 1970 +0000\n+++ b/fourth\tWed Jan 01 10:01:00 2020 +0000\n@@ -0,0 +1,1 @@\n+second\ndiff -r 29114dbae42b -r 95c24699272e second\n--- a/second\tMon Jan 12 13:46:40 1970 +0000\n+++ /dev/null\tThu Jan 01 00:00:00 1970 +0000\n@@ -1,1 +0,0 @@\n-second\ndiff -r 29114dbae42b -r 95c24699272e third\n--- /dev/null\tThu Jan 01 00:00:00 1970 +0000\n+++ b/third\tWed Jan 01 10:01:00 2020 +0000\n@@ -0,0 +1,1 @@\n+third\n"
    }
   ]
 
 honor --git but not format-breaking diffopts
   $ hg --config diff.noprefix=True log --git -vpr . -Tjson
   [
    {
     "rev": 8,
     "node": "95c24699272ef57d062b8bccc32c878bf841784a",
     "branch": "default",
     "phase": "draft",
     "user": "test",
     "date": [1577872860, 0],
     "desc": "third",
     "bookmarks": [],
     "tags": ["tip"],
     "parents": ["29114dbae42b9f078cf2714dbe3a86bba8ec7453"],
     "files": ["fourth", "second", "third"],
     "diff": "diff --git a/second b/fourth\nrename from second\nrename to fourth\ndiff --git a/third b/third\nnew file mode 100644\n--- /dev/null\n+++ b/third\n@@ -0,0 +1,1 @@\n+third\n"
    }
   ]
 
   $ hg log -T json
   [
    {
     "rev": 8,
     "node": "95c24699272ef57d062b8bccc32c878bf841784a",
     "branch": "default",
     "phase": "draft",
     "user": "test",
     "date": [1577872860, 0],
     "desc": "third",
     "bookmarks": [],
     "tags": ["tip"],
     "parents": ["29114dbae42b9f078cf2714dbe3a86bba8ec7453"]
    },
    {
     "rev": 7,
     "node": "29114dbae42b9f078cf2714dbe3a86bba8ec7453",
     "branch": "default",
     "phase": "draft",
     "user": "User Name <user@hostname>",
     "date": [1000000, 0],
     "desc": "second",
     "bookmarks": [],
     "tags": [],
     "parents": ["0000000000000000000000000000000000000000"]
    },
    {
     "rev": 6,
     "node": "d41e714fe50d9e4a5f11b4d595d543481b5f980b",
     "branch": "default",
     "phase": "draft",
     "user": "person",
     "date": [1500001, 0],
     "desc": "merge",
     "bookmarks": [],
     "tags": [],
     "parents": ["13207e5a10d9fd28ec424934298e176197f2c67f", "bbe44766e73d5f11ed2177f1838de10c53ef3e74"]
    },
    {
     "rev": 5,
     "node": "13207e5a10d9fd28ec424934298e176197f2c67f",
     "branch": "default",
     "phase": "draft",
     "user": "person",
     "date": [1500000, 0],
     "desc": "new head",
     "bookmarks": [],
     "tags": [],
     "parents": ["10e46f2dcbf4823578cf180f33ecf0b957964c47"]
    },
    {
     "rev": 4,
     "node": "bbe44766e73d5f11ed2177f1838de10c53ef3e74",
     "branch": "foo",
     "phase": "draft",
     "user": "person",
     "date": [1400000, 0],
     "desc": "new branch",
     "bookmarks": [],
     "tags": [],
     "parents": ["10e46f2dcbf4823578cf180f33ecf0b957964c47"]
    },
    {
     "rev": 3,
     "node": "10e46f2dcbf4823578cf180f33ecf0b957964c47",
     "branch": "default",
     "phase": "draft",
     "user": "person",
     "date": [1300000, 0],
     "desc": "no user, no domain",
     "bookmarks": [],
     "tags": [],
     "parents": ["97054abb4ab824450e9164180baf491ae0078465"]
    },
    {
     "rev": 2,
     "node": "97054abb4ab824450e9164180baf491ae0078465",
     "branch": "default",
     "phase": "draft",
     "user": "other@place",
     "date": [1200000, 0],
     "desc": "no person",
     "bookmarks": [],
     "tags": [],
     "parents": ["b608e9d1a3f0273ccf70fb85fd6866b3482bf965"]
    },
    {
     "rev": 1,
     "node": "b608e9d1a3f0273ccf70fb85fd6866b3482bf965",
     "branch": "default",
     "phase": "draft",
     "user": "A. N. Other <other@place>",
     "date": [1100000, 0],
     "desc": "other 1\nother 2\n\nother 3",
     "bookmarks": [],
     "tags": [],
     "parents": ["1e4e1b8f71e05681d422154f5421e385fec3454f"]
    },
    {
     "rev": 0,
     "node": "1e4e1b8f71e05681d422154f5421e385fec3454f",
     "branch": "default",
     "phase": "draft",
     "user": "User Name <user@hostname>",
     "date": [1000000, 0],
     "desc": "line 1\nline 2",
     "bookmarks": [],
     "tags": [],
     "parents": ["0000000000000000000000000000000000000000"]
    }
   ]
 
   $ hg heads -v -Tjson
   [
    {
     "rev": 8,
     "node": "95c24699272ef57d062b8bccc32c878bf841784a",
     "branch": "default",
     "phase": "draft",
     "user": "test",
     "date": [1577872860, 0],
     "desc": "third",
     "bookmarks": [],
     "tags": ["tip"],
     "parents": ["29114dbae42b9f078cf2714dbe3a86bba8ec7453"],
     "files": ["fourth", "second", "third"]
    },
    {
     "rev": 6,
     "node": "d41e714fe50d9e4a5f11b4d595d543481b5f980b",
     "branch": "default",
     "phase": "draft",
     "user": "person",
     "date": [1500001, 0],
     "desc": "merge",
     "bookmarks": [],
     "tags": [],
     "parents": ["13207e5a10d9fd28ec424934298e176197f2c67f", "bbe44766e73d5f11ed2177f1838de10c53ef3e74"],
     "files": []
    },
    {
     "rev": 4,
     "node": "bbe44766e73d5f11ed2177f1838de10c53ef3e74",
     "branch": "foo",
     "phase": "draft",
     "user": "person",
     "date": [1400000, 0],
     "desc": "new branch",
     "bookmarks": [],
     "tags": [],
     "parents": ["10e46f2dcbf4823578cf180f33ecf0b957964c47"],
     "files": []
    }
   ]
 
   $ hg log --debug -Tjson
   [
    {
     "rev": 8,
     "node": "95c24699272ef57d062b8bccc32c878bf841784a",
     "branch": "default",
     "phase": "draft",
     "user": "test",
     "date": [1577872860, 0],
     "desc": "third",
     "bookmarks": [],
     "tags": ["tip"],
     "parents": ["29114dbae42b9f078cf2714dbe3a86bba8ec7453"],
     "manifest": "94961b75a2da554b4df6fb599e5bfc7d48de0c64",
     "extra": {"branch": "default"},
     "modified": [],
     "added": ["fourth", "third"],
     "removed": ["second"]
    },
    {
     "rev": 7,
     "node": "29114dbae42b9f078cf2714dbe3a86bba8ec7453",
     "branch": "default",
     "phase": "draft",
     "user": "User Name <user@hostname>",
     "date": [1000000, 0],
     "desc": "second",
     "bookmarks": [],
     "tags": [],
     "parents": ["0000000000000000000000000000000000000000"],
     "manifest": "f2dbc354b94e5ec0b4f10680ee0cee816101d0bf",
     "extra": {"branch": "default"},
     "modified": [],
     "added": ["second"],
     "removed": []
    },
    {
     "rev": 6,
     "node": "d41e714fe50d9e4a5f11b4d595d543481b5f980b",
     "branch": "default",
     "phase": "draft",
     "user": "person",
     "date": [1500001, 0],
     "desc": "merge",
     "bookmarks": [],
     "tags": [],
     "parents": ["13207e5a10d9fd28ec424934298e176197f2c67f", "bbe44766e73d5f11ed2177f1838de10c53ef3e74"],
     "manifest": "4dc3def4f9b4c6e8de820f6ee74737f91e96a216",
     "extra": {"branch": "default"},
     "modified": [],
     "added": [],
     "removed": []
    },
    {
     "rev": 5,
     "node": "13207e5a10d9fd28ec424934298e176197f2c67f",
     "branch": "default",
     "phase": "draft",
     "user": "person",
     "date": [1500000, 0],
     "desc": "new head",
     "bookmarks": [],
     "tags": [],
     "parents": ["10e46f2dcbf4823578cf180f33ecf0b957964c47"],
     "manifest": "4dc3def4f9b4c6e8de820f6ee74737f91e96a216",
     "extra": {"branch": "default"},
     "modified": [],
     "added": ["d"],
     "removed": []
    },
    {
     "rev": 4,
     "node": "bbe44766e73d5f11ed2177f1838de10c53ef3e74",
     "branch": "foo",
     "phase": "draft",
     "user": "person",
     "date": [1400000, 0],
     "desc": "new branch",
     "bookmarks": [],
     "tags": [],
     "parents": ["10e46f2dcbf4823578cf180f33ecf0b957964c47"],
     "manifest": "cb5a1327723bada42f117e4c55a303246eaf9ccc",
     "extra": {"branch": "foo"},
     "modified": [],
     "added": [],
     "removed": []
    },
    {
     "rev": 3,
     "node": "10e46f2dcbf4823578cf180f33ecf0b957964c47",
     "branch": "default",
     "phase": "draft",
     "user": "person",
     "date": [1300000, 0],
     "desc": "no user, no domain",
     "bookmarks": [],
     "tags": [],
     "parents": ["97054abb4ab824450e9164180baf491ae0078465"],
     "manifest": "cb5a1327723bada42f117e4c55a303246eaf9ccc",
     "extra": {"branch": "default"},
     "modified": ["c"],
     "added": [],
     "removed": []
    },
    {
     "rev": 2,
     "node": "97054abb4ab824450e9164180baf491ae0078465",
     "branch": "default",
     "phase": "draft",
     "user": "other@place",
     "date": [1200000, 0],
     "desc": "no person",
     "bookmarks": [],
     "tags": [],
     "parents": ["b608e9d1a3f0273ccf70fb85fd6866b3482bf965"],
     "manifest": "6e0e82995c35d0d57a52aca8da4e56139e06b4b1",
     "extra": {"branch": "default"},
     "modified": [],
     "added": ["c"],
     "removed": []
    },
    {
     "rev": 1,
     "node": "b608e9d1a3f0273ccf70fb85fd6866b3482bf965",
     "branch": "default",
     "phase": "draft",
     "user": "A. N. Other <other@place>",
     "date": [1100000, 0],
     "desc": "other 1\nother 2\n\nother 3",
     "bookmarks": [],
     "tags": [],
     "parents": ["1e4e1b8f71e05681d422154f5421e385fec3454f"],
     "manifest": "4e8d705b1e53e3f9375e0e60dc7b525d8211fe55",
     "extra": {"branch": "default"},
     "modified": [],
     "added": ["b"],
     "removed": []
    },
    {
     "rev": 0,
     "node": "1e4e1b8f71e05681d422154f5421e385fec3454f",
     "branch": "default",
     "phase": "draft",
     "user": "User Name <user@hostname>",
     "date": [1000000, 0],
     "desc": "line 1\nline 2",
     "bookmarks": [],
     "tags": [],
     "parents": ["0000000000000000000000000000000000000000"],
     "manifest": "a0c8bcbbb45c63b90b70ad007bf38961f64f2af0",
     "extra": {"branch": "default"},
     "modified": [],
     "added": ["a"],
     "removed": []
    }
   ]
 
 Error if style not readable:
 
 #if unix-permissions no-root
   $ touch q
   $ chmod 0 q
   $ hg log --style ./q
   abort: Permission denied: ./q
   [255]
 #endif
 
 Error if no style:
 
   $ hg log --style notexist
   abort: style 'notexist' not found
   (available styles: bisect, changelog, compact, default, phases, status, xml)
   [255]
 
   $ hg log -T list
   available styles: bisect, changelog, compact, default, phases, status, xml
   abort: specify a template
   [255]
 
 Error if style missing key:
 
   $ echo 'q = q' > t
   $ hg log --style ./t
   abort: "changeset" not in template map
   [255]
 
 Error if style missing value:
 
   $ echo 'changeset =' > t
   $ hg log --style t
   hg: parse error at t:1: missing value
   [255]
 
 Error if include fails:
 
   $ echo 'changeset = q' >> t
 #if unix-permissions no-root
   $ hg log --style ./t
   abort: template file ./q: Permission denied
   [255]
   $ rm -f q
 #endif
 
 Include works:
 
   $ echo '{rev}' > q
   $ hg log --style ./t
   8
   7
   6
   5
   4
   3
   2
   1
   0
 
 Check that recursive reference does not fall into RuntimeError (issue4758):
 
  common mistake:
 
   $ hg log -T '{changeset}\n'
   abort: recursive reference 'changeset' in template
   [255]
 
  circular reference:
 
   $ cat << EOF > issue4758
   > changeset = '{foo}'
   > foo = '{changeset}'
   > EOF
   $ hg log --style ./issue4758
   abort: recursive reference 'foo' in template
   [255]
 
  buildmap() -> gettemplate(), where no thunk was made:
 
   $ hg log -T '{files % changeset}\n'
   abort: recursive reference 'changeset' in template
   [255]
 
  not a recursion if a keyword of the same name exists:
 
   $ cat << EOF > issue4758
   > changeset = '{tags % rev}'
   > rev = '{rev} {tag}\n'
   > EOF
   $ hg log --style ./issue4758 -r tip
   8 tip
 
 Check that {phase} works correctly on parents:
 
   $ cat << EOF > parentphase
   > changeset_debug = '{rev} ({phase}):{parents}\n'
   > parent = ' {rev} ({phase})'
   > EOF
   $ hg phase -r 5 --public
   $ hg phase -r 7 --secret --force
   $ hg log --debug -G --style ./parentphase
   @  8 (secret): 7 (secret) -1 (public)
   |
   o  7 (secret): -1 (public) -1 (public)
   
   o    6 (draft): 5 (public) 4 (draft)
   |\
   | o  5 (public): 3 (public) -1 (public)
   | |
   o |  4 (draft): 3 (public) -1 (public)
   |/
   o  3 (public): 2 (public) -1 (public)
   |
   o  2 (public): 1 (public) -1 (public)
   |
   o  1 (public): 0 (public) -1 (public)
   |
   o  0 (public): -1 (public) -1 (public)
   
 
 Missing non-standard names give no error (backward compatibility):
 
   $ echo "changeset = '{c}'" > t
   $ hg log --style ./t
 
 Defining non-standard name works:
 
   $ cat <<EOF > t
   > changeset = '{c}'
   > c = q
   > EOF
   $ hg log --style ./t
   8
   7
   6
   5
   4
   3
   2
   1
   0
 
 ui.style works:
 
   $ echo '[ui]' > .hg/hgrc
   $ echo 'style = t' >> .hg/hgrc
   $ hg log
   8
   7
   6
   5
   4
   3
   2
   1
   0
 
 
 Issue338:
 
   $ hg log --style=changelog > changelog
 
   $ cat changelog
   2020-01-01  test  <test>
   
   	* fourth, second, third:
   	third
   	[95c24699272e] [tip]
   
   1970-01-12  User Name  <user@hostname>
   
   	* second:
   	second
   	[29114dbae42b]
   
   1970-01-18  person  <person>
   
   	* merge
   	[d41e714fe50d]
   
   	* d:
   	new head
   	[13207e5a10d9]
   
   1970-01-17  person  <person>
   
   	* new branch
   	[bbe44766e73d] <foo>
   
   1970-01-16  person  <person>
   
   	* c:
   	no user, no domain
   	[10e46f2dcbf4]
   
   1970-01-14  other  <other@place>
   
   	* c:
   	no person
   	[97054abb4ab8]
   
   1970-01-13  A. N. Other  <other@place>
   
   	* b:
   	other 1 other 2
   
   	other 3
   	[b608e9d1a3f0]
   
   1970-01-12  User Name  <user@hostname>
   
   	* a:
   	line 1 line 2
   	[1e4e1b8f71e0]
   
 
 Issue2130: xml output for 'hg heads' is malformed
 
   $ hg heads --style changelog
   2020-01-01  test  <test>
   
   	* fourth, second, third:
   	third
   	[95c24699272e] [tip]
   
   1970-01-18  person  <person>
   
   	* merge
   	[d41e714fe50d]
   
   1970-01-17  person  <person>
   
   	* new branch
   	[bbe44766e73d] <foo>
   
 
 Keys work:
 
   $ for key in author branch branches date desc file_adds file_dels file_mods \
   >         file_copies file_copies_switch files \
   >         manifest node parents rev tags diffstat extras \
   >         p1rev p2rev p1node p2node; do
   >     for mode in '' --verbose --debug; do
   >         hg log $mode --template "$key$mode: {$key}\n"
   >     done
   > done
   author: test
   author: User Name <user@hostname>
   author: person
   author: person
   author: person
   author: person
   author: other@place
   author: A. N. Other <other@place>
   author: User Name <user@hostname>
   author--verbose: test
   author--verbose: User Name <user@hostname>
   author--verbose: person
   author--verbose: person
   author--verbose: person
   author--verbose: person
   author--verbose: other@place
   author--verbose: A. N. Other <other@place>
   author--verbose: User Name <user@hostname>
   author--debug: test
   author--debug: User Name <user@hostname>
   author--debug: person
   author--debug: person
   author--debug: person
   author--debug: person
   author--debug: other@place
   author--debug: A. N. Other <other@place>
   author--debug: User Name <user@hostname>
   branch: default
   branch: default
   branch: default
   branch: default
   branch: foo
   branch: default
   branch: default
   branch: default
   branch: default
   branch--verbose: default
   branch--verbose: default
   branch--verbose: default
   branch--verbose: default
   branch--verbose: foo
   branch--verbose: default
   branch--verbose: default
   branch--verbose: default
   branch--verbose: default
   branch--debug: default
   branch--debug: default
   branch--debug: default
   branch--debug: default
   branch--debug: foo
   branch--debug: default
   branch--debug: default
   branch--debug: default
   branch--debug: default
   branches: 
   branches: 
   branches: 
   branches: 
   branches: foo
   branches: 
   branches: 
   branches: 
   branches: 
   branches--verbose: 
   branches--verbose: 
   branches--verbose: 
   branches--verbose: 
   branches--verbose: foo
   branches--verbose: 
   branches--verbose: 
   branches--verbose: 
   branches--verbose: 
   branches--debug: 
   branches--debug: 
   branches--debug: 
   branches--debug: 
   branches--debug: foo
   branches--debug: 
   branches--debug: 
   branches--debug: 
   branches--debug: 
   date: 1577872860.00
   date: 1000000.00
   date: 1500001.00
   date: 1500000.00
   date: 1400000.00
   date: 1300000.00
   date: 1200000.00
   date: 1100000.00
   date: 1000000.00
   date--verbose: 1577872860.00
   date--verbose: 1000000.00
   date--verbose: 1500001.00
   date--verbose: 1500000.00
   date--verbose: 1400000.00
   date--verbose: 1300000.00
   date--verbose: 1200000.00
   date--verbose: 1100000.00
   date--verbose: 1000000.00
   date--debug: 1577872860.00
   date--debug: 1000000.00
   date--debug: 1500001.00
   date--debug: 1500000.00
   date--debug: 1400000.00
   date--debug: 1300000.00
   date--debug: 1200000.00
   date--debug: 1100000.00
   date--debug: 1000000.00
   desc: third
   desc: second
   desc: merge
   desc: new head
   desc: new branch
   desc: no user, no domain
   desc: no person
   desc: other 1
   other 2
   
   other 3
   desc: line 1
   line 2
   desc--verbose: third
   desc--verbose: second
   desc--verbose: merge
   desc--verbose: new head
   desc--verbose: new branch
   desc--verbose: no user, no domain
   desc--verbose: no person
   desc--verbose: other 1
   other 2
   
   other 3
   desc--verbose: line 1
   line 2
   desc--debug: third
   desc--debug: second
   desc--debug: merge
   desc--debug: new head
   desc--debug: new branch
   desc--debug: no user, no domain
   desc--debug: no person
   desc--debug: other 1
   other 2
   
   other 3
   desc--debug: line 1
   line 2
   file_adds: fourth third
   file_adds: second
   file_adds: 
   file_adds: d
   file_adds: 
   file_adds: 
   file_adds: c
   file_adds: b
   file_adds: a
   file_adds--verbose: fourth third
   file_adds--verbose: second
   file_adds--verbose: 
   file_adds--verbose: d
   file_adds--verbose: 
   file_adds--verbose: 
   file_adds--verbose: c
   file_adds--verbose: b
   file_adds--verbose: a
   file_adds--debug: fourth third
   file_adds--debug: second
   file_adds--debug: 
   file_adds--debug: d
   file_adds--debug: 
   file_adds--debug: 
   file_adds--debug: c
   file_adds--debug: b
   file_adds--debug: a
   file_dels: second
   file_dels: 
   file_dels: 
   file_dels: 
   file_dels: 
   file_dels: 
   file_dels: 
   file_dels: 
   file_dels: 
   file_dels--verbose: second
   file_dels--verbose: 
   file_dels--verbose: 
   file_dels--verbose: 
   file_dels--verbose: 
   file_dels--verbose: 
   file_dels--verbose: 
   file_dels--verbose: 
   file_dels--verbose: 
   file_dels--debug: second
   file_dels--debug: 
   file_dels--debug: 
   file_dels--debug: 
   file_dels--debug: 
   file_dels--debug: 
   file_dels--debug: 
   file_dels--debug: 
   file_dels--debug: 
   file_mods: 
   file_mods: 
   file_mods: 
   file_mods: 
   file_mods: 
   file_mods: c
   file_mods: 
   file_mods: 
   file_mods: 
   file_mods--verbose: 
   file_mods--verbose: 
   file_mods--verbose: 
   file_mods--verbose: 
   file_mods--verbose: 
   file_mods--verbose: c
   file_mods--verbose: 
   file_mods--verbose: 
   file_mods--verbose: 
   file_mods--debug: 
   file_mods--debug: 
   file_mods--debug: 
   file_mods--debug: 
   file_mods--debug: 
   file_mods--debug: c
   file_mods--debug: 
   file_mods--debug: 
   file_mods--debug: 
   file_copies: fourth (second)
   file_copies: 
   file_copies: 
   file_copies: 
   file_copies: 
   file_copies: 
   file_copies: 
   file_copies: 
   file_copies: 
   file_copies--verbose: fourth (second)
   file_copies--verbose: 
   file_copies--verbose: 
   file_copies--verbose: 
   file_copies--verbose: 
   file_copies--verbose: 
   file_copies--verbose: 
   file_copies--verbose: 
   file_copies--verbose: 
   file_copies--debug: fourth (second)
   file_copies--debug: 
   file_copies--debug: 
   file_copies--debug: 
   file_copies--debug: 
   file_copies--debug: 
   file_copies--debug: 
   file_copies--debug: 
   file_copies--debug: 
   file_copies_switch: 
   file_copies_switch: 
   file_copies_switch: 
   file_copies_switch: 
   file_copies_switch: 
   file_copies_switch: 
   file_copies_switch: 
   file_copies_switch: 
   file_copies_switch: 
   file_copies_switch--verbose: 
   file_copies_switch--verbose: 
   file_copies_switch--verbose: 
   file_copies_switch--verbose: 
   file_copies_switch--verbose: 
   file_copies_switch--verbose: 
   file_copies_switch--verbose: 
   file_copies_switch--verbose: 
   file_copies_switch--verbose: 
   file_copies_switch--debug: 
   file_copies_switch--debug: 
   file_copies_switch--debug: 
   file_copies_switch--debug: 
   file_copies_switch--debug: 
   file_copies_switch--debug: 
   file_copies_switch--debug: 
   file_copies_switch--debug: 
   file_copies_switch--debug: 
   files: fourth second third
   files: second
   files: 
   files: d
   files: 
   files: c
   files: c
   files: b
   files: a
   files--verbose: fourth second third
   files--verbose: second
   files--verbose: 
   files--verbose: d
   files--verbose: 
   files--verbose: c
   files--verbose: c
   files--verbose: b
   files--verbose: a
   files--debug: fourth second third
   files--debug: second
   files--debug: 
   files--debug: d
   files--debug: 
   files--debug: c
   files--debug: c
   files--debug: b
   files--debug: a
   manifest: 6:94961b75a2da
   manifest: 5:f2dbc354b94e
   manifest: 4:4dc3def4f9b4
   manifest: 4:4dc3def4f9b4
   manifest: 3:cb5a1327723b
   manifest: 3:cb5a1327723b
   manifest: 2:6e0e82995c35
   manifest: 1:4e8d705b1e53
   manifest: 0:a0c8bcbbb45c
   manifest--verbose: 6:94961b75a2da
   manifest--verbose: 5:f2dbc354b94e
   manifest--verbose: 4:4dc3def4f9b4
   manifest--verbose: 4:4dc3def4f9b4
   manifest--verbose: 3:cb5a1327723b
   manifest--verbose: 3:cb5a1327723b
   manifest--verbose: 2:6e0e82995c35
   manifest--verbose: 1:4e8d705b1e53
   manifest--verbose: 0:a0c8bcbbb45c
   manifest--debug: 6:94961b75a2da554b4df6fb599e5bfc7d48de0c64
   manifest--debug: 5:f2dbc354b94e5ec0b4f10680ee0cee816101d0bf
   manifest--debug: 4:4dc3def4f9b4c6e8de820f6ee74737f91e96a216
   manifest--debug: 4:4dc3def4f9b4c6e8de820f6ee74737f91e96a216
   manifest--debug: 3:cb5a1327723bada42f117e4c55a303246eaf9ccc
   manifest--debug: 3:cb5a1327723bada42f117e4c55a303246eaf9ccc
   manifest--debug: 2:6e0e82995c35d0d57a52aca8da4e56139e06b4b1
   manifest--debug: 1:4e8d705b1e53e3f9375e0e60dc7b525d8211fe55
   manifest--debug: 0:a0c8bcbbb45c63b90b70ad007bf38961f64f2af0
   node: 95c24699272ef57d062b8bccc32c878bf841784a
   node: 29114dbae42b9f078cf2714dbe3a86bba8ec7453
   node: d41e714fe50d9e4a5f11b4d595d543481b5f980b
   node: 13207e5a10d9fd28ec424934298e176197f2c67f
   node: bbe44766e73d5f11ed2177f1838de10c53ef3e74
   node: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   node: 97054abb4ab824450e9164180baf491ae0078465
   node: b608e9d1a3f0273ccf70fb85fd6866b3482bf965
   node: 1e4e1b8f71e05681d422154f5421e385fec3454f
   node--verbose: 95c24699272ef57d062b8bccc32c878bf841784a
   node--verbose: 29114dbae42b9f078cf2714dbe3a86bba8ec7453
   node--verbose: d41e714fe50d9e4a5f11b4d595d543481b5f980b
   node--verbose: 13207e5a10d9fd28ec424934298e176197f2c67f
   node--verbose: bbe44766e73d5f11ed2177f1838de10c53ef3e74
   node--verbose: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   node--verbose: 97054abb4ab824450e9164180baf491ae0078465
   node--verbose: b608e9d1a3f0273ccf70fb85fd6866b3482bf965
   node--verbose: 1e4e1b8f71e05681d422154f5421e385fec3454f
   node--debug: 95c24699272ef57d062b8bccc32c878bf841784a
   node--debug: 29114dbae42b9f078cf2714dbe3a86bba8ec7453
   node--debug: d41e714fe50d9e4a5f11b4d595d543481b5f980b
   node--debug: 13207e5a10d9fd28ec424934298e176197f2c67f
   node--debug: bbe44766e73d5f11ed2177f1838de10c53ef3e74
   node--debug: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   node--debug: 97054abb4ab824450e9164180baf491ae0078465
   node--debug: b608e9d1a3f0273ccf70fb85fd6866b3482bf965
   node--debug: 1e4e1b8f71e05681d422154f5421e385fec3454f
   parents: 
   parents: -1:000000000000 
   parents: 5:13207e5a10d9 4:bbe44766e73d 
   parents: 3:10e46f2dcbf4 
   parents: 
   parents: 
   parents: 
   parents: 
   parents: 
   parents--verbose: 
   parents--verbose: -1:000000000000 
   parents--verbose: 5:13207e5a10d9 4:bbe44766e73d 
   parents--verbose: 3:10e46f2dcbf4 
   parents--verbose: 
   parents--verbose: 
   parents--verbose: 
   parents--verbose: 
   parents--verbose: 
   parents--debug: 7:29114dbae42b9f078cf2714dbe3a86bba8ec7453 -1:0000000000000000000000000000000000000000 
   parents--debug: -1:0000000000000000000000000000000000000000 -1:0000000000000000000000000000000000000000 
   parents--debug: 5:13207e5a10d9fd28ec424934298e176197f2c67f 4:bbe44766e73d5f11ed2177f1838de10c53ef3e74 
   parents--debug: 3:10e46f2dcbf4823578cf180f33ecf0b957964c47 -1:0000000000000000000000000000000000000000 
   parents--debug: 3:10e46f2dcbf4823578cf180f33ecf0b957964c47 -1:0000000000000000000000000000000000000000 
   parents--debug: 2:97054abb4ab824450e9164180baf491ae0078465 -1:0000000000000000000000000000000000000000 
   parents--debug: 1:b608e9d1a3f0273ccf70fb85fd6866b3482bf965 -1:0000000000000000000000000000000000000000 
   parents--debug: 0:1e4e1b8f71e05681d422154f5421e385fec3454f -1:0000000000000000000000000000000000000000 
   parents--debug: -1:0000000000000000000000000000000000000000 -1:0000000000000000000000000000000000000000 
   rev: 8
   rev: 7
   rev: 6
   rev: 5
   rev: 4
   rev: 3
   rev: 2
   rev: 1
   rev: 0
   rev--verbose: 8
   rev--verbose: 7
   rev--verbose: 6
   rev--verbose: 5
   rev--verbose: 4
   rev--verbose: 3
   rev--verbose: 2
   rev--verbose: 1
   rev--verbose: 0
   rev--debug: 8
   rev--debug: 7
   rev--debug: 6
   rev--debug: 5
   rev--debug: 4
   rev--debug: 3
   rev--debug: 2
   rev--debug: 1
   rev--debug: 0
   tags: tip
   tags: 
   tags: 
   tags: 
   tags: 
   tags: 
   tags: 
   tags: 
   tags: 
   tags--verbose: tip
   tags--verbose: 
   tags--verbose: 
   tags--verbose: 
   tags--verbose: 
   tags--verbose: 
   tags--verbose: 
   tags--verbose: 
   tags--verbose: 
   tags--debug: tip
   tags--debug: 
   tags--debug: 
   tags--debug: 
   tags--debug: 
   tags--debug: 
   tags--debug: 
   tags--debug: 
   tags--debug: 
   diffstat: 3: +2/-1
   diffstat: 1: +1/-0
   diffstat: 0: +0/-0
   diffstat: 1: +1/-0
   diffstat: 0: +0/-0
   diffstat: 1: +1/-0
   diffstat: 1: +4/-0
   diffstat: 1: +2/-0
   diffstat: 1: +1/-0
   diffstat--verbose: 3: +2/-1
   diffstat--verbose: 1: +1/-0
   diffstat--verbose: 0: +0/-0
   diffstat--verbose: 1: +1/-0
   diffstat--verbose: 0: +0/-0
   diffstat--verbose: 1: +1/-0
   diffstat--verbose: 1: +4/-0
   diffstat--verbose: 1: +2/-0
   diffstat--verbose: 1: +1/-0
   diffstat--debug: 3: +2/-1
   diffstat--debug: 1: +1/-0
   diffstat--debug: 0: +0/-0
   diffstat--debug: 1: +1/-0
   diffstat--debug: 0: +0/-0
   diffstat--debug: 1: +1/-0
   diffstat--debug: 1: +4/-0
   diffstat--debug: 1: +2/-0
   diffstat--debug: 1: +1/-0
   extras: branch=default
   extras: branch=default
   extras: branch=default
   extras: branch=default
   extras: branch=foo
   extras: branch=default
   extras: branch=default
   extras: branch=default
   extras: branch=default
   extras--verbose: branch=default
   extras--verbose: branch=default
   extras--verbose: branch=default
   extras--verbose: branch=default
   extras--verbose: branch=foo
   extras--verbose: branch=default
   extras--verbose: branch=default
   extras--verbose: branch=default
   extras--verbose: branch=default
   extras--debug: branch=default
   extras--debug: branch=default
   extras--debug: branch=default
   extras--debug: branch=default
   extras--debug: branch=foo
   extras--debug: branch=default
   extras--debug: branch=default
   extras--debug: branch=default
   extras--debug: branch=default
   p1rev: 7
   p1rev: -1
   p1rev: 5
   p1rev: 3
   p1rev: 3
   p1rev: 2
   p1rev: 1
   p1rev: 0
   p1rev: -1
   p1rev--verbose: 7
   p1rev--verbose: -1
   p1rev--verbose: 5
   p1rev--verbose: 3
   p1rev--verbose: 3
   p1rev--verbose: 2
   p1rev--verbose: 1
   p1rev--verbose: 0
   p1rev--verbose: -1
   p1rev--debug: 7
   p1rev--debug: -1
   p1rev--debug: 5
   p1rev--debug: 3
   p1rev--debug: 3
   p1rev--debug: 2
   p1rev--debug: 1
   p1rev--debug: 0
   p1rev--debug: -1
   p2rev: -1
   p2rev: -1
   p2rev: 4
   p2rev: -1
   p2rev: -1
   p2rev: -1
   p2rev: -1
   p2rev: -1
   p2rev: -1
   p2rev--verbose: -1
   p2rev--verbose: -1
   p2rev--verbose: 4
   p2rev--verbose: -1
   p2rev--verbose: -1
   p2rev--verbose: -1
   p2rev--verbose: -1
   p2rev--verbose: -1
   p2rev--verbose: -1
   p2rev--debug: -1
   p2rev--debug: -1
   p2rev--debug: 4
   p2rev--debug: -1
   p2rev--debug: -1
   p2rev--debug: -1
   p2rev--debug: -1
   p2rev--debug: -1
   p2rev--debug: -1
   p1node: 29114dbae42b9f078cf2714dbe3a86bba8ec7453
   p1node: 0000000000000000000000000000000000000000
   p1node: 13207e5a10d9fd28ec424934298e176197f2c67f
   p1node: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   p1node: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   p1node: 97054abb4ab824450e9164180baf491ae0078465
   p1node: b608e9d1a3f0273ccf70fb85fd6866b3482bf965
   p1node: 1e4e1b8f71e05681d422154f5421e385fec3454f
   p1node: 0000000000000000000000000000000000000000
   p1node--verbose: 29114dbae42b9f078cf2714dbe3a86bba8ec7453
   p1node--verbose: 0000000000000000000000000000000000000000
   p1node--verbose: 13207e5a10d9fd28ec424934298e176197f2c67f
   p1node--verbose: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   p1node--verbose: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   p1node--verbose: 97054abb4ab824450e9164180baf491ae0078465
   p1node--verbose: b608e9d1a3f0273ccf70fb85fd6866b3482bf965
   p1node--verbose: 1e4e1b8f71e05681d422154f5421e385fec3454f
   p1node--verbose: 0000000000000000000000000000000000000000
   p1node--debug: 29114dbae42b9f078cf2714dbe3a86bba8ec7453
   p1node--debug: 0000000000000000000000000000000000000000
   p1node--debug: 13207e5a10d9fd28ec424934298e176197f2c67f
   p1node--debug: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   p1node--debug: 10e46f2dcbf4823578cf180f33ecf0b957964c47
   p1node--debug: 97054abb4ab824450e9164180baf491ae0078465
   p1node--debug: b608e9d1a3f0273ccf70fb85fd6866b3482bf965
   p1node--debug: 1e4e1b8f71e05681d422154f5421e385fec3454f
   p1node--debug: 0000000000000000000000000000000000000000
   p2node: 0000000000000000000000000000000000000000
   p2node: 0000000000000000000000000000000000000000
   p2node: bbe44766e73d5f11ed2177f1838de10c53ef3e74
   p2node: 0000000000000000000000000000000000000000
   p2node: 0000000000000000000000000000000000000000
   p2node: 0000000000000000000000000000000000000000
   p2node: 0000000000000000000000000000000000000000
   p2node: 0000000000000000000000000000000000000000
   p2node: 0000000000000000000000000000000000000000
   p2node--verbose: 0000000000000000000000000000000000000000
   p2node--verbose: 0000000000000000000000000000000000000000
   p2node--verbose: bbe44766e73d5f11ed2177f1838de10c53ef3e74
   p2node--verbose: 0000000000000000000000000000000000000000
   p2node--verbose: 0000000000000000000000000000000000000000
   p2node--verbose: 0000000000000000000000000000000000000000
   p2node--verbose: 0000000000000000000000000000000000000000
   p2node--verbose: 0000000000000000000000000000000000000000
   p2node--verbose: 0000000000000000000000000000000000000000
   p2node--debug: 0000000000000000000000000000000000000000
   p2node--debug: 0000000000000000000000000000000000000000
   p2node--debug: bbe44766e73d5f11ed2177f1838de10c53ef3e74
   p2node--debug: 0000000000000000000000000000000000000000
   p2node--debug: 0000000000000000000000000000000000000000
   p2node--debug: 0000000000000000000000000000000000000000
   p2node--debug: 0000000000000000000000000000000000000000
   p2node--debug: 0000000000000000000000000000000000000000
   p2node--debug: 0000000000000000000000000000000000000000
 
 Filters work:
 
   $ hg log --template '{author|domain}\n'
   
   hostname
   
   
   
   
   place
   place
   hostname
 
   $ hg log --template '{author|person}\n'
   test
   User Name
   person
   person
   person
   person
   other
   A. N. Other
   User Name
 
   $ hg log --template '{author|user}\n'
   test
   user
   person
   person
   person
   person
   other
   other
   user
 
   $ hg log --template '{date|date}\n'
   Wed Jan 01 10:01:00 2020 +0000
   Mon Jan 12 13:46:40 1970 +0000
   Sun Jan 18 08:40:01 1970 +0000
   Sun Jan 18 08:40:00 1970 +0000
   Sat Jan 17 04:53:20 1970 +0000
   Fri Jan 16 01:06:40 1970 +0000
   Wed Jan 14 21:20:00 1970 +0000
   Tue Jan 13 17:33:20 1970 +0000
   Mon Jan 12 13:46:40 1970 +0000
 
   $ hg log --template '{date|isodate}\n'
   2020-01-01 10:01 +0000
   1970-01-12 13:46 +0000
   1970-01-18 08:40 +0000
   1970-01-18 08:40 +0000
   1970-01-17 04:53 +0000
   1970-01-16 01:06 +0000
   1970-01-14 21:20 +0000
   1970-01-13 17:33 +0000
   1970-01-12 13:46 +0000
 
   $ hg log --template '{date|isodatesec}\n'
   2020-01-01 10:01:00 +0000
   1970-01-12 13:46:40 +0000
   1970-01-18 08:40:01 +0000
   1970-01-18 08:40:00 +0000
   1970-01-17 04:53:20 +0000
   1970-01-16 01:06:40 +0000
   1970-01-14 21:20:00 +0000
   1970-01-13 17:33:20 +0000
   1970-01-12 13:46:40 +0000
 
   $ hg log --template '{date|rfc822date}\n'
   Wed, 01 Jan 2020 10:01:00 +0000
   Mon, 12 Jan 1970 13:46:40 +0000
   Sun, 18 Jan 1970 08:40:01 +0000
   Sun, 18 Jan 1970 08:40:00 +0000
   Sat, 17 Jan 1970 04:53:20 +0000
   Fri, 16 Jan 1970 01:06:40 +0000
   Wed, 14 Jan 1970 21:20:00 +0000
   Tue, 13 Jan 1970 17:33:20 +0000
   Mon, 12 Jan 1970 13:46:40 +0000
 
   $ hg log --template '{desc|firstline}\n'
   third
   second
   merge
   new head
   new branch
   no user, no domain
   no person
   other 1
   line 1
 
   $ hg log --template '{node|short}\n'
   95c24699272e
   29114dbae42b
   d41e714fe50d
   13207e5a10d9
   bbe44766e73d
   10e46f2dcbf4
   97054abb4ab8
   b608e9d1a3f0
   1e4e1b8f71e0
 
   $ hg log --template '<changeset author="{author|xmlescape}"/>\n'
   <changeset author="test"/>
   <changeset author="User Name &lt;user@hostname&gt;"/>
   <changeset author="person"/>
   <changeset author="person"/>
   <changeset author="person"/>
   <changeset author="person"/>
   <changeset author="other@place"/>
   <changeset author="A. N. Other &lt;other@place&gt;"/>
   <changeset author="User Name &lt;user@hostname&gt;"/>
 
   $ hg log --template '{rev}: {children}\n'
   8: 
   7: 8:95c24699272e
   6: 
   5: 6:d41e714fe50d
   4: 6:d41e714fe50d
   3: 4:bbe44766e73d 5:13207e5a10d9
   2: 3:10e46f2dcbf4
   1: 2:97054abb4ab8
   0: 1:b608e9d1a3f0
 
 Formatnode filter works:
 
   $ hg -q log -r 0 --template '{node|formatnode}\n'
   1e4e1b8f71e0
 
   $ hg log -r 0 --template '{node|formatnode}\n'
   1e4e1b8f71e0
 
   $ hg -v log -r 0 --template '{node|formatnode}\n'
   1e4e1b8f71e0
 
   $ hg --debug log -r 0 --template '{node|formatnode}\n'
   1e4e1b8f71e05681d422154f5421e385fec3454f
 
 Age filter:
 
   $ hg init unstable-hash
   $ cd unstable-hash
   $ hg log --template '{date|age}\n' > /dev/null || exit 1
 
   >>> from datetime import datetime, timedelta
   >>> fp = open('a', 'w')
   >>> n = datetime.now() + timedelta(366 * 7)
   >>> fp.write('%d-%d-%d 00:00' % (n.year, n.month, n.day))
   >>> fp.close()
   $ hg add a
   $ hg commit -m future -d "`cat a`"
 
   $ hg log -l1 --template '{date|age}\n'
   7 years from now
 
   $ cd ..
   $ rm -rf unstable-hash
 
 Add a dummy commit to make up for the instability of the above:
 
   $ echo a > a
   $ hg add a
   $ hg ci -m future
 
 Count filter:
 
   $ hg log -l1 --template '{node|count} {node|short|count}\n'
   40 12
 
   $ hg log -l1 --template '{revset("null^")|count} {revset(".")|count} {revset("0::3")|count}\n'
   0 1 4
 
   $ hg log -G --template '{rev}: children: {children|count}, \
   > tags: {tags|count}, file_adds: {file_adds|count}, \
   > ancestors: {revset("ancestors(%s)", rev)|count}'
   @  9: children: 0, tags: 1, file_adds: 1, ancestors: 3
   |
   o  8: children: 1, tags: 0, file_adds: 2, ancestors: 2
   |
   o  7: children: 1, tags: 0, file_adds: 1, ancestors: 1
   
   o    6: children: 0, tags: 0, file_adds: 0, ancestors: 7
   |\
   | o  5: children: 1, tags: 0, file_adds: 1, ancestors: 5
   | |
   o |  4: children: 1, tags: 0, file_adds: 0, ancestors: 5
   |/
   o  3: children: 2, tags: 0, file_adds: 0, ancestors: 4
   |
   o  2: children: 1, tags: 0, file_adds: 1, ancestors: 3
   |
   o  1: children: 1, tags: 0, file_adds: 1, ancestors: 2
   |
   o  0: children: 1, tags: 0, file_adds: 1, ancestors: 1
   
 
 Upper/lower filters:
 
   $ hg log -r0 --template '{branch|upper}\n'
   DEFAULT
   $ hg log -r0 --template '{author|lower}\n'
   user name <user@hostname>
   $ hg log -r0 --template '{date|upper}\n'
   abort: template filter 'upper' is not compatible with keyword 'date'
   [255]
 
 Add a commit that does all possible modifications at once
 
   $ echo modify >> third
   $ touch b
   $ hg add b
   $ hg mv fourth fifth
   $ hg rm a
   $ hg ci -m "Modify, add, remove, rename"
 
 Check the status template
 
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > color=
   > EOF
 
   $ hg log -T status -r 10
   changeset:   10:0f9759ec227a
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     Modify, add, remove, rename
   files:
   M third
   A b
   A fifth
   R a
   R fourth
   
   $ hg log -T status -C -r 10
   changeset:   10:0f9759ec227a
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     Modify, add, remove, rename
   files:
   M third
   A b
   A fifth
     fourth
   R a
   R fourth
   
   $ hg log -T status -C -r 10 -v
   changeset:   10:0f9759ec227a
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   description:
   Modify, add, remove, rename
   
   files:
   M third
   A b
   A fifth
     fourth
   R a
   R fourth
   
   $ hg log -T status -C -r 10 --debug
   changeset:   10:0f9759ec227a4859c2014a345cd8a859022b7c6c
   tag:         tip
   phase:       secret
   parent:      9:bf9dfba36635106d6a73ccc01e28b762da60e066
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    8:89dd546f2de0a9d6d664f58d86097eb97baba567
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   extra:       branch=default
   description:
   Modify, add, remove, rename
   
   files:
   M third
   A b
   A fifth
     fourth
   R a
   R fourth
   
   $ hg log -T status -C -r 10 --quiet
   10:0f9759ec227a
   $ hg --color=debug log -T status -r 10
   [log.changeset changeset.secret|changeset:   10:0f9759ec227a]
   [log.tag|tag:         tip]
   [log.user|user:        test]
   [log.date|date:        Thu Jan 01 00:00:00 1970 +0000]
   [log.summary|summary:     Modify, add, remove, rename]
   [ui.note log.files|files:]
   [status.modified|M third]
   [status.added|A b]
   [status.added|A fifth]
   [status.removed|R a]
   [status.removed|R fourth]
   
   $ hg --color=debug log -T status -C -r 10
   [log.changeset changeset.secret|changeset:   10:0f9759ec227a]
   [log.tag|tag:         tip]
   [log.user|user:        test]
   [log.date|date:        Thu Jan 01 00:00:00 1970 +0000]
   [log.summary|summary:     Modify, add, remove, rename]
   [ui.note log.files|files:]
   [status.modified|M third]
   [status.added|A b]
   [status.added|A fifth]
   [status.copied|  fourth]
   [status.removed|R a]
   [status.removed|R fourth]
   
   $ hg --color=debug log -T status -C -r 10 -v
   [log.changeset changeset.secret|changeset:   10:0f9759ec227a]
   [log.tag|tag:         tip]
   [log.user|user:        test]
   [log.date|date:        Thu Jan 01 00:00:00 1970 +0000]
   [ui.note log.description|description:]
   [ui.note log.description|Modify, add, remove, rename]
   
   [ui.note log.files|files:]
   [status.modified|M third]
   [status.added|A b]
   [status.added|A fifth]
   [status.copied|  fourth]
   [status.removed|R a]
   [status.removed|R fourth]
   
   $ hg --color=debug log -T status -C -r 10 --debug
   [log.changeset changeset.secret|changeset:   10:0f9759ec227a4859c2014a345cd8a859022b7c6c]
   [log.tag|tag:         tip]
   [log.phase|phase:       secret]
   [log.parent changeset.secret|parent:      9:bf9dfba36635106d6a73ccc01e28b762da60e066]
   [log.parent changeset.public|parent:      -1:0000000000000000000000000000000000000000]
   [ui.debug log.manifest|manifest:    8:89dd546f2de0a9d6d664f58d86097eb97baba567]
   [log.user|user:        test]
   [log.date|date:        Thu Jan 01 00:00:00 1970 +0000]
   [ui.debug log.extra|extra:       branch=default]
   [ui.note log.description|description:]
   [ui.note log.description|Modify, add, remove, rename]
   
   [ui.note log.files|files:]
   [status.modified|M third]
   [status.added|A b]
   [status.added|A fifth]
   [status.copied|  fourth]
   [status.removed|R a]
   [status.removed|R fourth]
   
   $ hg --color=debug log -T status -C -r 10 --quiet
   [log.node|10:0f9759ec227a]
 
 Check the bisect template
 
   $ hg bisect -g 1
   $ hg bisect -b 3 --noupdate
   Testing changeset 2:97054abb4ab8 (2 changesets remaining, ~1 tests)
   $ hg log -T bisect -r 0:4
   changeset:   0:1e4e1b8f71e0
   bisect:      good (implicit)
   user:        User Name <user@hostname>
   date:        Mon Jan 12 13:46:40 1970 +0000
   summary:     line 1
   
   changeset:   1:b608e9d1a3f0
   bisect:      good
   user:        A. N. Other <other@place>
   date:        Tue Jan 13 17:33:20 1970 +0000
   summary:     other 1
   
   changeset:   2:97054abb4ab8
   bisect:      untested
   user:        other@place
   date:        Wed Jan 14 21:20:00 1970 +0000
   summary:     no person
   
   changeset:   3:10e46f2dcbf4
   bisect:      bad
   user:        person
   date:        Fri Jan 16 01:06:40 1970 +0000
   summary:     no user, no domain
   
   changeset:   4:bbe44766e73d
   bisect:      bad (implicit)
   branch:      foo
   user:        person
   date:        Sat Jan 17 04:53:20 1970 +0000
   summary:     new branch
   
   $ hg log --debug -T bisect -r 0:4
   changeset:   0:1e4e1b8f71e05681d422154f5421e385fec3454f
   bisect:      good (implicit)
   phase:       public
   parent:      -1:0000000000000000000000000000000000000000
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    0:a0c8bcbbb45c63b90b70ad007bf38961f64f2af0
   user:        User Name <user@hostname>
   date:        Mon Jan 12 13:46:40 1970 +0000
   files+:      a
   extra:       branch=default
   description:
   line 1
   line 2
   
   
   changeset:   1:b608e9d1a3f0273ccf70fb85fd6866b3482bf965
   bisect:      good
   phase:       public
   parent:      0:1e4e1b8f71e05681d422154f5421e385fec3454f
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    1:4e8d705b1e53e3f9375e0e60dc7b525d8211fe55
   user:        A. N. Other <other@place>
   date:        Tue Jan 13 17:33:20 1970 +0000
   files+:      b
   extra:       branch=default
   description:
   other 1
   other 2
   
   other 3
   
   
   changeset:   2:97054abb4ab824450e9164180baf491ae0078465
   bisect:      untested
   phase:       public
   parent:      1:b608e9d1a3f0273ccf70fb85fd6866b3482bf965
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    2:6e0e82995c35d0d57a52aca8da4e56139e06b4b1
   user:        other@place
   date:        Wed Jan 14 21:20:00 1970 +0000
   files+:      c
   extra:       branch=default
   description:
   no person
   
   
   changeset:   3:10e46f2dcbf4823578cf180f33ecf0b957964c47
   bisect:      bad
   phase:       public
   parent:      2:97054abb4ab824450e9164180baf491ae0078465
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    3:cb5a1327723bada42f117e4c55a303246eaf9ccc
   user:        person
   date:        Fri Jan 16 01:06:40 1970 +0000
   files:       c
   extra:       branch=default
   description:
   no user, no domain
   
   
   changeset:   4:bbe44766e73d5f11ed2177f1838de10c53ef3e74
   bisect:      bad (implicit)
   branch:      foo
   phase:       draft
   parent:      3:10e46f2dcbf4823578cf180f33ecf0b957964c47
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    3:cb5a1327723bada42f117e4c55a303246eaf9ccc
   user:        person
   date:        Sat Jan 17 04:53:20 1970 +0000
   extra:       branch=foo
   description:
   new branch
   
   
   $ hg log -v -T bisect -r 0:4
   changeset:   0:1e4e1b8f71e0
   bisect:      good (implicit)
   user:        User Name <user@hostname>
   date:        Mon Jan 12 13:46:40 1970 +0000
   files:       a
   description:
   line 1
   line 2
   
   
   changeset:   1:b608e9d1a3f0
   bisect:      good
   user:        A. N. Other <other@place>
   date:        Tue Jan 13 17:33:20 1970 +0000
   files:       b
   description:
   other 1
   other 2
   
   other 3
   
   
   changeset:   2:97054abb4ab8
   bisect:      untested
   user:        other@place
   date:        Wed Jan 14 21:20:00 1970 +0000
   files:       c
   description:
   no person
   
   
   changeset:   3:10e46f2dcbf4
   bisect:      bad
   user:        person
   date:        Fri Jan 16 01:06:40 1970 +0000
   files:       c
   description:
   no user, no domain
   
   
   changeset:   4:bbe44766e73d
   bisect:      bad (implicit)
   branch:      foo
   user:        person
   date:        Sat Jan 17 04:53:20 1970 +0000
   description:
   new branch
   
   
   $ hg --color=debug log -T bisect -r 0:4
   [log.changeset changeset.public|changeset:   0:1e4e1b8f71e0]
   [log.bisect bisect.good|bisect:      good (implicit)]
   [log.user|user:        User Name <user@hostname>]
   [log.date|date:        Mon Jan 12 13:46:40 1970 +0000]
   [log.summary|summary:     line 1]
   
   [log.changeset changeset.public|changeset:   1:b608e9d1a3f0]
   [log.bisect bisect.good|bisect:      good]
   [log.user|user:        A. N. Other <other@place>]
   [log.date|date:        Tue Jan 13 17:33:20 1970 +0000]
   [log.summary|summary:     other 1]
   
   [log.changeset changeset.public|changeset:   2:97054abb4ab8]
   [log.bisect bisect.untested|bisect:      untested]
   [log.user|user:        other@place]
   [log.date|date:        Wed Jan 14 21:20:00 1970 +0000]
   [log.summary|summary:     no person]
   
   [log.changeset changeset.public|changeset:   3:10e46f2dcbf4]
   [log.bisect bisect.bad|bisect:      bad]
   [log.user|user:        person]
   [log.date|date:        Fri Jan 16 01:06:40 1970 +0000]
   [log.summary|summary:     no user, no domain]
   
   [log.changeset changeset.draft|changeset:   4:bbe44766e73d]
   [log.bisect bisect.bad|bisect:      bad (implicit)]
   [log.branch|branch:      foo]
   [log.user|user:        person]
   [log.date|date:        Sat Jan 17 04:53:20 1970 +0000]
   [log.summary|summary:     new branch]
   
   $ hg --color=debug log --debug -T bisect -r 0:4
   [log.changeset changeset.public|changeset:   0:1e4e1b8f71e05681d422154f5421e385fec3454f]
   [log.bisect bisect.good|bisect:      good (implicit)]
   [log.phase|phase:       public]
   [log.parent changeset.public|parent:      -1:0000000000000000000000000000000000000000]
   [log.parent changeset.public|parent:      -1:0000000000000000000000000000000000000000]
   [ui.debug log.manifest|manifest:    0:a0c8bcbbb45c63b90b70ad007bf38961f64f2af0]
   [log.user|user:        User Name <user@hostname>]
   [log.date|date:        Mon Jan 12 13:46:40 1970 +0000]
   [ui.debug log.files|files+:      a]
   [ui.debug log.extra|extra:       branch=default]
   [ui.note log.description|description:]
   [ui.note log.description|line 1
   line 2]
   
   
   [log.changeset changeset.public|changeset:   1:b608e9d1a3f0273ccf70fb85fd6866b3482bf965]
   [log.bisect bisect.good|bisect:      good]
   [log.phase|phase:       public]
   [log.parent changeset.public|parent:      0:1e4e1b8f71e05681d422154f5421e385fec3454f]
   [log.parent changeset.public|parent:      -1:0000000000000000000000000000000000000000]
   [ui.debug log.manifest|manifest:    1:4e8d705b1e53e3f9375e0e60dc7b525d8211fe55]
   [log.user|user:        A. N. Other <other@place>]
   [log.date|date:        Tue Jan 13 17:33:20 1970 +0000]
   [ui.debug log.files|files+:      b]
   [ui.debug log.extra|extra:       branch=default]
   [ui.note log.description|description:]
   [ui.note log.description|other 1
   other 2
   
   other 3]
   
   
   [log.changeset changeset.public|changeset:   2:97054abb4ab824450e9164180baf491ae0078465]
   [log.bisect bisect.untested|bisect:      untested]
   [log.phase|phase:       public]
   [log.parent changeset.public|parent:      1:b608e9d1a3f0273ccf70fb85fd6866b3482bf965]
   [log.parent changeset.public|parent:      -1:0000000000000000000000000000000000000000]
   [ui.debug log.manifest|manifest:    2:6e0e82995c35d0d57a52aca8da4e56139e06b4b1]
   [log.user|user:        other@place]
   [log.date|date:        Wed Jan 14 21:20:00 1970 +0000]
   [ui.debug log.files|files+:      c]
   [ui.debug log.extra|extra:       branch=default]
   [ui.note log.description|description:]
   [ui.note log.description|no person]
   
   
   [log.changeset changeset.public|changeset:   3:10e46f2dcbf4823578cf180f33ecf0b957964c47]
   [log.bisect bisect.bad|bisect:      bad]
   [log.phase|phase:       public]
   [log.parent changeset.public|parent:      2:97054abb4ab824450e9164180baf491ae0078465]
   [log.parent changeset.public|parent:      -1:0000000000000000000000000000000000000000]
   [ui.debug log.manifest|manifest:    3:cb5a1327723bada42f117e4c55a303246eaf9ccc]
   [log.user|user:        person]
   [log.date|date:        Fri Jan 16 01:06:40 1970 +0000]
   [ui.debug log.files|files:       c]
   [ui.debug log.extra|extra:       branch=default]
   [ui.note log.description|description:]
   [ui.note log.description|no user, no domain]
   
   
   [log.changeset changeset.draft|changeset:   4:bbe44766e73d5f11ed2177f1838de10c53ef3e74]
   [log.bisect bisect.bad|bisect:      bad (implicit)]
   [log.branch|branch:      foo]
   [log.phase|phase:       draft]
   [log.parent changeset.public|parent:      3:10e46f2dcbf4823578cf180f33ecf0b957964c47]
   [log.parent changeset.public|parent:      -1:0000000000000000000000000000000000000000]
   [ui.debug log.manifest|manifest:    3:cb5a1327723bada42f117e4c55a303246eaf9ccc]
   [log.user|user:        person]
   [log.date|date:        Sat Jan 17 04:53:20 1970 +0000]
   [ui.debug log.extra|extra:       branch=foo]
   [ui.note log.description|description:]
   [ui.note log.description|new branch]
   
   
   $ hg --color=debug log -v -T bisect -r 0:4
   [log.changeset changeset.public|changeset:   0:1e4e1b8f71e0]
   [log.bisect bisect.good|bisect:      good (implicit)]
   [log.user|user:        User Name <user@hostname>]
   [log.date|date:        Mon Jan 12 13:46:40 1970 +0000]
   [ui.note log.files|files:       a]
   [ui.note log.description|description:]
   [ui.note log.description|line 1
   line 2]
   
   
   [log.changeset changeset.public|changeset:   1:b608e9d1a3f0]
   [log.bisect bisect.good|bisect:      good]
   [log.user|user:        A. N. Other <other@place>]
   [log.date|date:        Tue Jan 13 17:33:20 1970 +0000]
   [ui.note log.files|files:       b]
   [ui.note log.description|description:]
   [ui.note log.description|other 1
   other 2
   
   other 3]
   
   
   [log.changeset changeset.public|changeset:   2:97054abb4ab8]
   [log.bisect bisect.untested|bisect:      untested]
   [log.user|user:        other@place]
   [log.date|date:        Wed Jan 14 21:20:00 1970 +0000]
   [ui.note log.files|files:       c]
   [ui.note log.description|description:]
   [ui.note log.description|no person]
   
   
   [log.changeset changeset.public|changeset:   3:10e46f2dcbf4]
   [log.bisect bisect.bad|bisect:      bad]
   [log.user|user:        person]
   [log.date|date:        Fri Jan 16 01:06:40 1970 +0000]
   [ui.note log.files|files:       c]
   [ui.note log.description|description:]
   [ui.note log.description|no user, no domain]
   
   
   [log.changeset changeset.draft|changeset:   4:bbe44766e73d]
   [log.bisect bisect.bad|bisect:      bad (implicit)]
   [log.branch|branch:      foo]
   [log.user|user:        person]
   [log.date|date:        Sat Jan 17 04:53:20 1970 +0000]
   [ui.note log.description|description:]
   [ui.note log.description|new branch]
   
   
   $ hg bisect --reset
 
 Error on syntax:
 
   $ echo 'x = "f' >> t
   $ hg log
   hg: parse error at t:3: unmatched quotes
   [255]
 
   $ hg log -T '{date'
   hg: parse error at 1: unterminated template expansion
   [255]
 
 Behind the scenes, this will throw TypeError
 
   $ hg log -l 3 --template '{date|obfuscate}\n'
   abort: template filter 'obfuscate' is not compatible with keyword 'date'
   [255]
 
 Behind the scenes, this will throw a ValueError
 
   $ hg log -l 3 --template 'line: {desc|shortdate}\n'
   abort: template filter 'shortdate' is not compatible with keyword 'desc'
   [255]
 
 Behind the scenes, this will throw AttributeError
 
   $ hg log -l 3 --template 'line: {date|escape}\n'
   abort: template filter 'escape' is not compatible with keyword 'date'
   [255]
 
   $ hg log -l 3 --template 'line: {extras|localdate}\n'
   hg: parse error: localdate expects a date information
   [255]
 
 Behind the scenes, this will throw ValueError
 
   $ hg tip --template '{author|email|date}\n'
   hg: parse error: date expects a date information
   [255]
 
 Error in nested template:
 
   $ hg log -T '{"date'
   hg: parse error at 2: unterminated string
   [255]
 
   $ hg log -T '{"foo{date|=}"}'
   hg: parse error at 11: syntax error
   [255]
 
 Thrown an error if a template function doesn't exist
 
   $ hg tip --template '{foo()}\n'
   hg: parse error: unknown function 'foo'
   [255]
 
 Pass generator object created by template function to filter
 
   $ hg log -l 1 --template '{if(author, author)|user}\n'
   test
 
 Test diff function:
 
   $ hg diff -c 8
   diff -r 29114dbae42b -r 95c24699272e fourth
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/fourth	Wed Jan 01 10:01:00 2020 +0000
   @@ -0,0 +1,1 @@
   +second
   diff -r 29114dbae42b -r 95c24699272e second
   --- a/second	Mon Jan 12 13:46:40 1970 +0000
   +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +0,0 @@
   -second
   diff -r 29114dbae42b -r 95c24699272e third
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/third	Wed Jan 01 10:01:00 2020 +0000
   @@ -0,0 +1,1 @@
   +third
 
   $ hg log -r 8 -T "{diff()}"
   diff -r 29114dbae42b -r 95c24699272e fourth
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/fourth	Wed Jan 01 10:01:00 2020 +0000
   @@ -0,0 +1,1 @@
   +second
   diff -r 29114dbae42b -r 95c24699272e second
   --- a/second	Mon Jan 12 13:46:40 1970 +0000
   +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +0,0 @@
   -second
   diff -r 29114dbae42b -r 95c24699272e third
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/third	Wed Jan 01 10:01:00 2020 +0000
   @@ -0,0 +1,1 @@
   +third
 
   $ hg log -r 8 -T "{diff('glob:f*')}"
   diff -r 29114dbae42b -r 95c24699272e fourth
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/fourth	Wed Jan 01 10:01:00 2020 +0000
   @@ -0,0 +1,1 @@
   +second
 
   $ hg log -r 8 -T "{diff('', 'glob:f*')}"
   diff -r 29114dbae42b -r 95c24699272e second
   --- a/second	Mon Jan 12 13:46:40 1970 +0000
   +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +0,0 @@
   -second
   diff -r 29114dbae42b -r 95c24699272e third
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/third	Wed Jan 01 10:01:00 2020 +0000
   @@ -0,0 +1,1 @@
   +third
 
   $ hg log -r 8 -T "{diff('FOURTH'|lower)}"
   diff -r 29114dbae42b -r 95c24699272e fourth
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/fourth	Wed Jan 01 10:01:00 2020 +0000
   @@ -0,0 +1,1 @@
   +second
 
   $ cd ..
 
 
 latesttag:
 
   $ hg init latesttag
   $ cd latesttag
 
   $ echo a > file
   $ hg ci -Am a -d '0 0'
   adding file
 
   $ echo b >> file
   $ hg ci -m b -d '1 0'
 
   $ echo c >> head1
   $ hg ci -Am h1c -d '2 0'
   adding head1
 
   $ hg update -q 1
   $ echo d >> head2
   $ hg ci -Am h2d -d '3 0'
   adding head2
   created new head
 
   $ echo e >> head2
   $ hg ci -m h2e -d '4 0'
 
   $ hg merge -q
   $ hg ci -m merge -d '5 -3600'
 
 No tag set:
 
   $ hg log --template '{rev}: {latesttag}+{latesttagdistance}\n'
   5: null+5
   4: null+4
   3: null+3
   2: null+3
   1: null+2
   0: null+1
 
 One common tag: longest path wins:
 
   $ hg tag -r 1 -m t1 -d '6 0' t1
   $ hg log --template '{rev}: {latesttag}+{latesttagdistance}\n'
   6: t1+4
   5: t1+3
   4: t1+2
   3: t1+1
   2: t1+1
   1: t1+0
   0: null+1
 
 One ancestor tag: more recent wins:
 
   $ hg tag -r 2 -m t2 -d '7 0' t2
   $ hg log --template '{rev}: {latesttag}+{latesttagdistance}\n'
   7: t2+3
   6: t2+2
   5: t2+1
   4: t1+2
   3: t1+1
   2: t2+0
   1: t1+0
   0: null+1
 
 Two branch tags: more recent wins:
 
   $ hg tag -r 3 -m t3 -d '8 0' t3
   $ hg log --template '{rev}: {latesttag}+{latesttagdistance}\n'
   8: t3+5
   7: t3+4
   6: t3+3
   5: t3+2
   4: t3+1
   3: t3+0
   2: t2+0
   1: t1+0
   0: null+1
 
 Merged tag overrides:
 
   $ hg tag -r 5 -m t5 -d '9 0' t5
   $ hg tag -r 3 -m at3 -d '10 0' at3
   $ hg log --template '{rev}: {latesttag}+{latesttagdistance}\n'
   10: t5+5
   9: t5+4
   8: t5+3
   7: t5+2
   6: t5+1
   5: t5+0
   4: at3:t3+1
   3: at3:t3+0
   2: t2+0
   1: t1+0
   0: null+1
 
   $ hg log --template "{rev}: {latesttag % '{tag}+{distance},{changes} '}\n"
   10: t5+5,5 
   9: t5+4,4 
   8: t5+3,3 
   7: t5+2,2 
   6: t5+1,1 
   5: t5+0,0 
   4: at3+1,1 t3+1,1 
   3: at3+0,0 t3+0,0 
   2: t2+0,0 
   1: t1+0,0 
   0: null+1,1 
 
   $ hg log --template "{rev}: {latesttag('re:^t[13]$') % '{tag}, C: {changes}, D: {distance}'}\n"
   10: t3, C: 8, D: 7
   9: t3, C: 7, D: 6
   8: t3, C: 6, D: 5
   7: t3, C: 5, D: 4
   6: t3, C: 4, D: 3
   5: t3, C: 3, D: 2
   4: t3, C: 1, D: 1
   3: t3, C: 0, D: 0
   2: t1, C: 1, D: 1
   1: t1, C: 0, D: 0
   0: null, C: 1, D: 1
 
   $ cd ..
 
 
 Style path expansion: issue1948 - ui.style option doesn't work on OSX
 if it is a relative path
 
   $ mkdir -p home/styles
 
   $ cat > home/styles/teststyle <<EOF
   > changeset = 'test {rev}:{node|short}\n'
   > EOF
 
   $ HOME=`pwd`/home; export HOME
 
   $ cat > latesttag/.hg/hgrc <<EOF
   > [ui]
   > style = ~/styles/teststyle
   > EOF
 
   $ hg -R latesttag tip
   test 10:9b4a630e5f5f
 
 Test recursive showlist template (issue1989):
 
   $ cat > style1989 <<EOF
   > changeset = '{file_mods}{manifest}{extras}'
   > file_mod  = 'M|{author|person}\n'
   > manifest = '{rev},{author}\n'
   > extra = '{key}: {author}\n'
   > EOF
 
   $ hg -R latesttag log -r tip --style=style1989
   M|test
   10,test
   branch: test
 
 Test new-style inline templating:
 
   $ hg log -R latesttag -r tip --template 'modified files: {file_mods % " {file}\n"}\n'
   modified files:  .hgtags
   
 
   $ hg log -R latesttag -r tip -T '{rev % "a"}\n'
   hg: parse error: keyword 'rev' is not iterable
   [255]
   $ hg log -R latesttag -r tip -T '{get(extras, "unknown") % "a"}\n'
   hg: parse error: None is not iterable
   [255]
 
 Test the sub function of templating for expansion:
 
   $ hg log -R latesttag -r 10 --template '{sub("[0-9]", "x", "{rev}")}\n'
   xx
 
   $ hg log -R latesttag -r 10 -T '{sub("[", "x", rev)}\n'
   hg: parse error: sub got an invalid pattern: [
   [255]
   $ hg log -R latesttag -r 10 -T '{sub("[0-9]", r"\1", rev)}\n'
   hg: parse error: sub got an invalid replacement: \1
   [255]
 
 Test the strip function with chars specified:
 
   $ hg log -R latesttag --template '{desc}\n'
   at3
   t5
   t3
   t2
   t1
   merge
   h2e
   h2d
   h1c
   b
   a
 
   $ hg log -R latesttag --template '{strip(desc, "te")}\n'
   at3
   5
   3
   2
   1
   merg
   h2
   h2d
   h1c
   b
   a
 
 Test date format:
 
   $ hg log -R latesttag --template 'date: {date(date, "%y %m %d %S %z")}\n'
   date: 70 01 01 10 +0000
   date: 70 01 01 09 +0000
   date: 70 01 01 08 +0000
   date: 70 01 01 07 +0000
   date: 70 01 01 06 +0000
   date: 70 01 01 05 +0100
   date: 70 01 01 04 +0000
   date: 70 01 01 03 +0000
   date: 70 01 01 02 +0000
   date: 70 01 01 01 +0000
   date: 70 01 01 00 +0000
 
 Test invalid date:
 
   $ hg log -R latesttag -T '{date(rev)}\n'
   hg: parse error: date expects a date information
   [255]
 
 Test integer literal:
 
   $ hg debugtemplate -v '{(0)}\n'
   (template
     (group
       ('integer', '0'))
     ('string', '\n'))
   0
   $ hg debugtemplate -v '{(123)}\n'
   (template
     (group
       ('integer', '123'))
     ('string', '\n'))
   123
   $ hg debugtemplate -v '{(-4)}\n'
   (template
     (group
       ('integer', '-4'))
     ('string', '\n'))
   -4
   $ hg debugtemplate '{(-)}\n'
   hg: parse error at 2: integer literal without digits
   [255]
   $ hg debugtemplate '{(-a)}\n'
   hg: parse error at 2: integer literal without digits
   [255]
 
 top-level integer literal is interpreted as symbol (i.e. variable name):
 
   $ hg debugtemplate -D 1=one -v '{1}\n'
   (template
     ('integer', '1')
     ('string', '\n'))
   one
   $ hg debugtemplate -D 1=one -v '{if("t", "{1}")}\n'
   (template
     (func
       ('symbol', 'if')
       (list
         ('string', 't')
         (template
           ('integer', '1'))))
     ('string', '\n'))
   one
   $ hg debugtemplate -D 1=one -v '{1|stringify}\n'
   (template
     (|
       ('integer', '1')
       ('symbol', 'stringify'))
     ('string', '\n'))
   one
 
 unless explicit symbol is expected:
 
   $ hg log -Ra -r0 -T '{desc|1}\n'
   hg: parse error: expected a symbol, got 'integer'
   [255]
   $ hg log -Ra -r0 -T '{1()}\n'
   hg: parse error: expected a symbol, got 'integer'
   [255]
 
 Test string literal:
 
   $ hg debugtemplate -Ra -r0 -v '{"string with no template fragment"}\n'
   (template
     ('string', 'string with no template fragment')
     ('string', '\n'))
   string with no template fragment
   $ hg debugtemplate -Ra -r0 -v '{"template: {rev}"}\n'
   (template
     (template
       ('string', 'template: ')
       ('symbol', 'rev'))
     ('string', '\n'))
   template: 0
   $ hg debugtemplate -Ra -r0 -v '{r"rawstring: {rev}"}\n'
   (template
     ('string', 'rawstring: {rev}')
     ('string', '\n'))
   rawstring: {rev}
   $ hg debugtemplate -Ra -r0 -v '{files % r"rawstring: {file}"}\n'
   (template
     (%
       ('symbol', 'files')
       ('string', 'rawstring: {file}'))
     ('string', '\n'))
   rawstring: {file}
 
 Test string escaping:
 
   $ hg log -R latesttag -r 0 --template '>\n<>\\n<{if(rev, "[>\n<>\\n<]")}>\n<>\\n<\n'
   >
   <>\n<[>
   <>\n<]>
   <>\n<
 
   $ hg log -R latesttag -r 0 \
   > --config ui.logtemplate='>\n<>\\n<{if(rev, "[>\n<>\\n<]")}>\n<>\\n<\n'
   >
   <>\n<[>
   <>\n<]>
   <>\n<
 
   $ hg log -R latesttag -r 0 -T esc \
   > --config templates.esc='>\n<>\\n<{if(rev, "[>\n<>\\n<]")}>\n<>\\n<\n'
   >
   <>\n<[>
   <>\n<]>
   <>\n<
 
   $ cat <<'EOF' > esctmpl
   > changeset = '>\n<>\\n<{if(rev, "[>\n<>\\n<]")}>\n<>\\n<\n'
   > EOF
   $ hg log -R latesttag -r 0 --style ./esctmpl
   >
   <>\n<[>
   <>\n<]>
   <>\n<
 
 Test string escaping of quotes:
 
   $ hg log -Ra -r0 -T '{"\""}\n'
   "
   $ hg log -Ra -r0 -T '{"\\\""}\n'
   \"
   $ hg log -Ra -r0 -T '{r"\""}\n'
   \"
   $ hg log -Ra -r0 -T '{r"\\\""}\n'
   \\\"
 
 
   $ hg log -Ra -r0 -T '{"\""}\n'
   "
   $ hg log -Ra -r0 -T '{"\\\""}\n'
   \"
   $ hg log -Ra -r0 -T '{r"\""}\n'
   \"
   $ hg log -Ra -r0 -T '{r"\\\""}\n'
   \\\"
 
 Test exception in quoted template. single backslash before quotation mark is
 stripped before parsing:
 
   $ cat <<'EOF' > escquotetmpl
   > changeset = "\" \\" \\\" \\\\" {files % \"{file}\"}\n"
   > EOF
   $ cd latesttag
   $ hg log -r 2 --style ../escquotetmpl
   " \" \" \\" head1
 
   $ hg log -r 2 -T esc --config templates.esc='"{\"valid\"}\n"'
   valid
   $ hg log -r 2 -T esc --config templates.esc="'"'{\'"'"'valid\'"'"'}\n'"'"
   valid
 
 Test compatibility with 2.9.2-3.4 of escaped quoted strings in nested
 _evalifliteral() templates (issue4733):
 
   $ hg log -r 2 -T '{if(rev, "\"{rev}")}\n'
   "2
   $ hg log -r 2 -T '{if(rev, "{if(rev, \"\\\"{rev}\")}")}\n'
   "2
   $ hg log -r 2 -T '{if(rev, "{if(rev, \"{if(rev, \\\"\\\\\\\"{rev}\\\")}\")}")}\n'
   "2
 
   $ hg log -r 2 -T '{if(rev, "\\\"")}\n'
   \"
   $ hg log -r 2 -T '{if(rev, "{if(rev, \"\\\\\\\"\")}")}\n'
   \"
   $ hg log -r 2 -T '{if(rev, "{if(rev, \"{if(rev, \\\"\\\\\\\\\\\\\\\"\\\")}\")}")}\n'
   \"
 
   $ hg log -r 2 -T '{if(rev, r"\\\"")}\n'
   \\\"
   $ hg log -r 2 -T '{if(rev, "{if(rev, r\"\\\\\\\"\")}")}\n'
   \\\"
   $ hg log -r 2 -T '{if(rev, "{if(rev, \"{if(rev, r\\\"\\\\\\\\\\\\\\\"\\\")}\")}")}\n'
   \\\"
 
 escaped single quotes and errors:
 
   $ hg log -r 2 -T "{if(rev, '{if(rev, \'foo\')}')}"'\n'
   foo
   $ hg log -r 2 -T "{if(rev, '{if(rev, r\'foo\')}')}"'\n'
   foo
   $ hg log -r 2 -T '{if(rev, "{if(rev, \")}")}\n'
   hg: parse error at 21: unterminated string
   [255]
   $ hg log -r 2 -T '{if(rev, \"\\"")}\n'
   hg: parse error: trailing \ in string
   [255]
   $ hg log -r 2 -T '{if(rev, r\"\\"")}\n'
   hg: parse error: trailing \ in string
   [255]
 
   $ cd ..
 
 Test leading backslashes:
 
   $ cd latesttag
   $ hg log -r 2 -T '\{rev} {files % "\{file}"}\n'
   {rev} {file}
   $ hg log -r 2 -T '\\{rev} {files % "\\{file}"}\n'
   \2 \head1
   $ hg log -r 2 -T '\\\{rev} {files % "\\\{file}"}\n'
   \{rev} \{file}
   $ cd ..
 
 Test leading backslashes in "if" expression (issue4714):
 
   $ cd latesttag
   $ hg log -r 2 -T '{if("1", "\{rev}")} {if("1", r"\{rev}")}\n'
   {rev} \{rev}
   $ hg log -r 2 -T '{if("1", "\\{rev}")} {if("1", r"\\{rev}")}\n'
   \2 \\{rev}
   $ hg log -r 2 -T '{if("1", "\\\{rev}")} {if("1", r"\\\{rev}")}\n'
   \{rev} \\\{rev}
   $ cd ..
 
 "string-escape"-ed "\x5c\x786e" becomes r"\x6e" (once) or r"n" (twice)
 
   $ hg log -R a -r 0 --template '{if("1", "\x5c\x786e", "NG")}\n'
   \x6e
   $ hg log -R a -r 0 --template '{if("1", r"\x5c\x786e", "NG")}\n'
   \x5c\x786e
   $ hg log -R a -r 0 --template '{if("", "NG", "\x5c\x786e")}\n'
   \x6e
   $ hg log -R a -r 0 --template '{if("", "NG", r"\x5c\x786e")}\n'
   \x5c\x786e
 
   $ hg log -R a -r 2 --template '{ifeq("no perso\x6e", desc, "\x5c\x786e", "NG")}\n'
   \x6e
   $ hg log -R a -r 2 --template '{ifeq(r"no perso\x6e", desc, "NG", r"\x5c\x786e")}\n'
   \x5c\x786e
   $ hg log -R a -r 2 --template '{ifeq(desc, "no perso\x6e", "\x5c\x786e", "NG")}\n'
   \x6e
   $ hg log -R a -r 2 --template '{ifeq(desc, r"no perso\x6e", "NG", r"\x5c\x786e")}\n'
   \x5c\x786e
 
   $ hg log -R a -r 8 --template '{join(files, "\n")}\n'
   fourth
   second
   third
   $ hg log -R a -r 8 --template '{join(files, r"\n")}\n'
   fourth\nsecond\nthird
 
   $ hg log -R a -r 2 --template '{rstdoc("1st\n\n2nd", "htm\x6c")}'
   <p>
   1st
   </p>
   <p>
   2nd
   </p>
   $ hg log -R a -r 2 --template '{rstdoc(r"1st\n\n2nd", "html")}'
   <p>
   1st\n\n2nd
   </p>
   $ hg log -R a -r 2 --template '{rstdoc("1st\n\n2nd", r"htm\x6c")}'
   1st
   
   2nd
 
   $ hg log -R a -r 2 --template '{strip(desc, "\x6e")}\n'
   o perso
   $ hg log -R a -r 2 --template '{strip(desc, r"\x6e")}\n'
   no person
   $ hg log -R a -r 2 --template '{strip("no perso\x6e", "\x6e")}\n'
   o perso
   $ hg log -R a -r 2 --template '{strip(r"no perso\x6e", r"\x6e")}\n'
   no perso
 
   $ hg log -R a -r 2 --template '{sub("\\x6e", "\x2d", desc)}\n'
   -o perso-
   $ hg log -R a -r 2 --template '{sub(r"\\x6e", "-", desc)}\n'
   no person
   $ hg log -R a -r 2 --template '{sub("n", r"\x2d", desc)}\n'
   \x2do perso\x2d
   $ hg log -R a -r 2 --template '{sub("n", "\x2d", "no perso\x6e")}\n'
   -o perso-
   $ hg log -R a -r 2 --template '{sub("n", r"\x2d", r"no perso\x6e")}\n'
   \x2do perso\x6e
 
   $ hg log -R a -r 8 --template '{files % "{file}\n"}'
   fourth
   second
   third
 
 Test string escaping in nested expression:
 
   $ hg log -R a -r 8 --template '{ifeq(r"\x6e", if("1", "\x5c\x786e"), join(files, "\x5c\x786e"))}\n'
   fourth\x6esecond\x6ethird
   $ hg log -R a -r 8 --template '{ifeq(if("1", r"\x6e"), "\x5c\x786e", join(files, "\x5c\x786e"))}\n'
   fourth\x6esecond\x6ethird
 
   $ hg log -R a -r 8 --template '{join(files, ifeq(branch, "default", "\x5c\x786e"))}\n'
   fourth\x6esecond\x6ethird
   $ hg log -R a -r 8 --template '{join(files, ifeq(branch, "default", r"\x5c\x786e"))}\n'
   fourth\x5c\x786esecond\x5c\x786ethird
 
   $ hg log -R a -r 3:4 --template '{rev}:{sub(if("1", "\x6e"), ifeq(branch, "foo", r"\x5c\x786e", "\x5c\x786e"), desc)}\n'
   3:\x6eo user, \x6eo domai\x6e
   4:\x5c\x786eew bra\x5c\x786ech
 
 Test quotes in nested expression are evaluated just like a $(command)
 substitution in POSIX shells:
 
   $ hg log -R a -r 8 -T '{"{"{rev}:{node|short}"}"}\n'
   8:95c24699272e
   $ hg log -R a -r 8 -T '{"{"\{{rev}} \"{node|short}\""}"}\n'
   {8} "95c24699272e"
 
 Test recursive evaluation:
 
   $ hg init r
   $ cd r
   $ echo a > a
   $ hg ci -Am '{rev}'
   adding a
   $ hg log -r 0 --template '{if(rev, desc)}\n'
   {rev}
   $ hg log -r 0 --template '{if(rev, "{author} {rev}")}\n'
   test 0
 
   $ hg branch -q 'text.{rev}'
   $ echo aa >> aa
   $ hg ci -u '{node|short}' -m 'desc to be wrapped desc to be wrapped'
 
   $ hg log -l1 --template '{fill(desc, "20", author, branch)}'
   {node|short}desc to
   text.{rev}be wrapped
   text.{rev}desc to be
   text.{rev}wrapped (no-eol)
   $ hg log -l1 --template '{fill(desc, "20", "{node|short}:", "text.{rev}:")}'
   bcc7ff960b8e:desc to
   text.1:be wrapped
   text.1:desc to be
   text.1:wrapped (no-eol)
   $ hg log -l1 -T '{fill(desc, date, "", "")}\n'
   hg: parse error: fill expects an integer width
   [255]
 
   $ hg log -l 1 --template '{sub(r"[0-9]", "-", author)}'
   {node|short} (no-eol)
   $ hg log -l 1 --template '{sub(r"[0-9]", "-", "{node|short}")}'
   bcc-ff---b-e (no-eol)
 
   $ cat >> .hg/hgrc <<EOF
   > [extensions]
   > color=
   > [color]
   > mode=ansi
   > text.{rev} = red
   > text.1 = green
   > EOF
   $ hg log --color=always -l 1 --template '{label(branch, "text\n")}'
   \x1b[0;31mtext\x1b[0m (esc)
   $ hg log --color=always -l 1 --template '{label("text.{rev}", "text\n")}'
   \x1b[0;32mtext\x1b[0m (esc)
 
 color effect can be specified without quoting:
 
   $ hg log --color=always -l 1 --template '{label(red, "text\n")}'
   \x1b[0;31mtext\x1b[0m (esc)
 
 label should be no-op if color is disabled:
 
   $ hg log --color=never -l 1 --template '{label(red, "text\n")}'
   text
   $ hg log --config extensions.color=! -l 1 --template '{label(red, "text\n")}'
   text
 
 Test branches inside if statement:
 
   $ hg log -r 0 --template '{if(branches, "yes", "no")}\n'
   no
 
 Test get function:
 
   $ hg log -r 0 --template '{get(extras, "branch")}\n'
   default
   $ hg log -r 0 --template '{get(extras, "br{"anch"}")}\n'
   default
   $ hg log -r 0 --template '{get(files, "should_fail")}\n'
   hg: parse error: get() expects a dict as first argument
   [255]
 
 Test localdate(date, tz) function:
 
   $ TZ=JST-09 hg log -r0 -T '{date|localdate|isodate}\n'
   1970-01-01 09:00 +0900
   $ TZ=JST-09 hg log -r0 -T '{localdate(date, "UTC")|isodate}\n'
   1970-01-01 00:00 +0000
   $ TZ=JST-09 hg log -r0 -T '{localdate(date, "+0200")|isodate}\n'
   1970-01-01 02:00 +0200
   $ TZ=JST-09 hg log -r0 -T '{localdate(date, "0")|isodate}\n'
   1970-01-01 00:00 +0000
   $ TZ=JST-09 hg log -r0 -T '{localdate(date, 0)|isodate}\n'
   1970-01-01 00:00 +0000
   $ hg log -r0 -T '{localdate(date, "invalid")|isodate}\n'
   hg: parse error: localdate expects a timezone
   [255]
   $ hg log -r0 -T '{localdate(date, date)|isodate}\n'
   hg: parse error: localdate expects a timezone
   [255]
 
 Test shortest(node) function:
 
   $ echo b > b
   $ hg ci -qAm b
   $ hg log --template '{shortest(node)}\n'
   e777
   bcc7
   f776
   $ hg log --template '{shortest(node, 10)}\n'
   e777603221
   bcc7ff960b
   f7769ec2ab
   $ hg log --template '{node|shortest}\n' -l1
   e777
 
   $ hg log -r 0 -T '{shortest(node, "1{"0"}")}\n'
   f7769ec2ab
   $ hg log -r 0 -T '{shortest(node, "not an int")}\n'
   hg: parse error: shortest() expects an integer minlength
   [255]
 
 Test pad function
 
   $ hg log --template '{pad(rev, 20)} {author|user}\n'
   2                    test
   1                    {node|short}
   0                    test
 
   $ hg log --template '{pad(rev, 20, " ", True)} {author|user}\n'
                      2 test
                      1 {node|short}
                      0 test
 
   $ hg log --template '{pad(rev, 20, "-", False)} {author|user}\n'
   2------------------- test
   1------------------- {node|short}
   0------------------- test
 
 Test template string in pad function
 
   $ hg log -r 0 -T '{pad("\{{rev}}", 10)} {author|user}\n'
   {0}        test
 
   $ hg log -r 0 -T '{pad(r"\{rev}", 10)} {author|user}\n'
   \{rev}     test
 
 Test width argument passed to pad function
 
   $ hg log -r 0 -T '{pad(rev, "1{"0"}")} {author|user}\n'
   0          test
   $ hg log -r 0 -T '{pad(rev, "not an int")}\n'
   hg: parse error: pad() expects an integer width
   [255]
 
 Test ifcontains function
 
   $ hg log --template '{rev} {ifcontains(rev, "2 two 0", "is in the string", "is not")}\n'
   2 is in the string
   1 is not
   0 is in the string
 
   $ hg log -T '{rev} {ifcontains(rev, "2 two{" 0"}", "is in the string", "is not")}\n'
   2 is in the string
   1 is not
   0 is in the string
 
   $ hg log --template '{rev} {ifcontains("a", file_adds, "added a", "did not add a")}\n'
   2 did not add a
   1 did not add a
   0 added a
 
   $ hg log --debug -T '{rev}{ifcontains(1, parents, " is parent of 1")}\n'
   2 is parent of 1
   1
   0
 
 Test revset function
 
   $ hg log --template '{rev} {ifcontains(rev, revset("."), "current rev", "not current rev")}\n'
   2 current rev
   1 not current rev
   0 not current rev
 
   $ hg log --template '{rev} {ifcontains(rev, revset(". + .^"), "match rev", "not match rev")}\n'
   2 match rev
   1 match rev
   0 not match rev
 
   $ hg log --template '{rev} Parents: {revset("parents(%s)", rev)}\n'
   2 Parents: 1
   1 Parents: 0
   0 Parents: 
 
   $ cat >> .hg/hgrc <<EOF
   > [revsetalias]
   > myparents(\$1) = parents(\$1)
   > EOF
   $ hg log --template '{rev} Parents: {revset("myparents(%s)", rev)}\n'
   2 Parents: 1
   1 Parents: 0
   0 Parents: 
 
   $ hg log --template 'Rev: {rev}\n{revset("::%s", rev) % "Ancestor: {revision}\n"}\n'
   Rev: 2
   Ancestor: 0
   Ancestor: 1
   Ancestor: 2
   
   Rev: 1
   Ancestor: 0
   Ancestor: 1
   
   Rev: 0
   Ancestor: 0
   
   $ hg log --template '{revset("TIP"|lower)}\n' -l1
   2
 
   $ hg log -T '{revset("%s", "t{"ip"}")}\n' -l1
   2
 
  a list template is evaluated for each item of revset/parents
 
   $ hg log -T '{rev} p: {revset("p1(%s)", rev) % "{rev}:{node|short}"}\n'
   2 p: 1:bcc7ff960b8e
   1 p: 0:f7769ec2ab97
   0 p: 
 
   $ hg log --debug -T '{rev} p:{parents % " {rev}:{node|short}"}\n'
   2 p: 1:bcc7ff960b8e -1:000000000000
   1 p: 0:f7769ec2ab97 -1:000000000000
   0 p: -1:000000000000 -1:000000000000
 
  therefore, 'revcache' should be recreated for each rev
 
   $ hg log -T '{rev} {file_adds}\np {revset("p1(%s)", rev) % "{file_adds}"}\n'
   2 aa b
   p 
   1 
   p a
   0 a
   p 
 
   $ hg log --debug -T '{rev} {file_adds}\np {parents % "{file_adds}"}\n'
   2 aa b
   p 
   1 
   p a
   0 a
   p 
 
 a revset item must be evaluated as an integer revision, not an offset from tip
 
   $ hg log -l 1 -T '{revset("null") % "{rev}:{node|short}"}\n'
   -1:000000000000
   $ hg log -l 1 -T '{revset("%s", "null") % "{rev}:{node|short}"}\n'
   -1:000000000000
 
 Test active bookmark templating
 
   $ hg book foo
   $ hg book bar
   $ hg log --template "{rev} {bookmarks % '{bookmark}{ifeq(bookmark, active, \"*\")} '}\n"
   2 bar* foo 
   1 
   0 
   $ hg log --template "{rev} {activebookmark}\n"
   2 bar
   1 
   0 
   $ hg bookmarks --inactive bar
   $ hg log --template "{rev} {activebookmark}\n"
   2 
   1 
   0 
   $ hg book -r1 baz
   $ hg log --template "{rev} {join(bookmarks, ' ')}\n"
   2 bar foo
   1 baz
   0 
   $ hg log --template "{rev} {ifcontains('foo', bookmarks, 't', 'f')}\n"
   2 t
   1 f
   0 f
 
 Test namespaces dict
 
   $ hg log -T '{rev}{namespaces % " {namespace}={join(names, ",")}"}\n'
   2 bookmarks=bar,foo tags=tip branches=text.{rev}
   1 bookmarks=baz tags= branches=text.{rev}
   0 bookmarks= tags= branches=default
   $ hg log -r2 -T '{namespaces % "{namespace}: {names}\n"}'
   bookmarks: bar foo
   tags: tip
   branches: text.{rev}
   $ hg log -r2 -T '{namespaces % "{namespace}:\n{names % " {name}\n"}"}'
   bookmarks:
    bar
    foo
   tags:
    tip
   branches:
    text.{rev}
   $ hg log -r2 -T '{get(namespaces, "bookmarks") % "{name}\n"}'
   bar
   foo
 
 Test stringify on sub expressions
 
   $ cd ..
   $ hg log -R a -r 8 --template '{join(files, if("1", if("1", ", ")))}\n'
   fourth, second, third
   $ hg log -R a -r 8 --template '{strip(if("1", if("1", "-abc-")), if("1", if("1", "-")))}\n'
   abc
 
 Test splitlines
 
   $ hg log -Gv -R a --template "{splitlines(desc) % 'foo {line}\n'}"
   @  foo Modify, add, remove, rename
   |
   o  foo future
   |
   o  foo third
   |
   o  foo second
   
   o    foo merge
   |\
   | o  foo new head
   | |
   o |  foo new branch
   |/
   o  foo no user, no domain
   |
   o  foo no person
   |
   o  foo other 1
   |  foo other 2
   |  foo
   |  foo other 3
   o  foo line 1
      foo line 2
 
 Test startswith
   $ hg log -Gv -R a --template "{startswith(desc)}"
   hg: parse error: startswith expects two arguments
   [255]
 
   $ hg log -Gv -R a --template "{startswith('line', desc)}"
   @
   |
   o
   |
   o
   |
   o
   
   o
   |\
   | o
   | |
   o |
   |/
   o
   |
   o
   |
   o
   |
   o  line 1
      line 2
 
 Test bad template with better error message
 
   $ hg log -Gv -R a --template '{desc|user()}'
   hg: parse error: expected a symbol, got 'func'
   [255]
 
 Test word function (including index out of bounds graceful failure)
 
   $ hg log -Gv -R a --template "{word('1', desc)}"
   @  add,
   |
   o
   |
   o
   |
   o
   
   o
   |\
   | o  head
   | |
   o |  branch
   |/
   o  user,
   |
   o  person
   |
   o  1
   |
   o  1
   
 
 Test word third parameter used as splitter
 
   $ hg log -Gv -R a --template "{word('0', desc, 'o')}"
   @  M
   |
   o  future
   |
   o  third
   |
   o  sec
   
   o    merge
   |\
   | o  new head
   | |
   o |  new branch
   |/
   o  n
   |
   o  n
   |
   o
   |
   o  line 1
      line 2
 
 Test word error messages for not enough and too many arguments
 
   $ hg log -Gv -R a --template "{word('0')}"
   hg: parse error: word expects two or three arguments, got 1
   [255]
 
   $ hg log -Gv -R a --template "{word('0', desc, 'o', 'h', 'b', 'o', 'y')}"
   hg: parse error: word expects two or three arguments, got 7
   [255]
 
 Test word for integer literal
 
   $ hg log -R a --template "{word(2, desc)}\n" -r0
   line
 
 Test word for invalid numbers
 
   $ hg log -Gv -R a --template "{word('a', desc)}"
   hg: parse error: word expects an integer index
   [255]
 
 Test word for out of range
 
   $ hg log -R a --template "{word(10000, desc)}"
   $ hg log -R a --template "{word(-10000, desc)}"
 
 Test indent and not adding to empty lines
 
   $ hg log -T "-----\n{indent(desc, '>> ', ' > ')}\n" -r 0:1 -R a
   -----
    > line 1
   >> line 2
   -----
    > other 1
   >> other 2
   
   >> other 3
 
 Test with non-strings like dates
 
   $ hg log -T "{indent(date, '   ')}\n" -r 2:3 -R a
      1200000.00
      1300000.00
 
 Test broken string escapes:
 
   $ hg log -T "bogus\\" -R a
   hg: parse error: trailing \ in string
   [255]
   $ hg log -T "\\xy" -R a
   hg: parse error: invalid \x escape
   [255]
 
 json filter should escape HTML tags so that the output can be embedded in hgweb:
 
   $ hg log -T "{'<[e-mail]>'|json}\n" -R a -l1
   "\[e-mail]\u003e"
 
 Templater supports aliases of symbol and func() styles:
 
   $ hg clone -q a aliases
   $ cd aliases
   $ cat <<EOF >> .hg/hgrc
   > [templatealias]
   > r = rev
   > rn = "{r}:{node|short}"
   > status(c, files) = files % "{c} {file}\n"
   > utcdate(d) = localdate(d, "UTC")
   > EOF
 
   $ hg debugtemplate -vr0 '{rn} {utcdate(date)|isodate}\n'
   (template
     ('symbol', 'rn')
     ('string', ' ')
     (|
       (func
         ('symbol', 'utcdate')
         ('symbol', 'date'))
       ('symbol', 'isodate'))
     ('string', '\n'))
   * expanded:
   (template
     (template
       ('symbol', 'rev')
       ('string', ':')
       (|
         ('symbol', 'node')
         ('symbol', 'short')))
     ('string', ' ')
     (|
       (func
         ('symbol', 'localdate')
         (list
           ('symbol', 'date')
           ('string', 'UTC')))
       ('symbol', 'isodate'))
     ('string', '\n'))
-  hg: parse error: unknown function 'utcdate'
-  [255]
+  0:1e4e1b8f71e0 1970-01-12 13:46 +0000
 
   $ hg debugtemplate -vr0 '{status("A", file_adds)}'
   (template
     (func
       ('symbol', 'status')
       (list
         ('string', 'A')
         ('symbol', 'file_adds'))))
   * expanded:
   (template
     (%
       ('symbol', 'file_adds')
       (template
         ('string', 'A')
         ('string', ' ')
         ('symbol', 'file')
         ('string', '\n'))))
-  hg: parse error: unknown function 'status'
-  [255]
+  A a
 
 A unary function alias can be called as a filter:
 
   $ hg debugtemplate -vr0 '{date|utcdate|isodate}\n'
   (template
     (|
       (|
         ('symbol', 'date')
         ('symbol', 'utcdate'))
       ('symbol', 'isodate'))
     ('string', '\n'))
   * expanded:
   (template
     (|
       (func
         ('symbol', 'localdate')
         (list
           ('symbol', 'date')
           ('string', 'UTC')))
       ('symbol', 'isodate'))
     ('string', '\n'))
-  hg: parse error: unknown function 'utcdate'
-  [255]
+  1970-01-12 13:46 +0000
+
+Aliases should be applied only to command arguments and templates in hgrc.
+Otherwise, our stock styles and web templates could be corrupted:
+
+  $ hg log -r0 -T '{rn} {utcdate(date)|isodate}\n'
+  0:1e4e1b8f71e0 1970-01-12 13:46 +0000
+
+  $ hg log -r0 --config ui.logtemplate='"{rn} {utcdate(date)|isodate}\n"'
+  0:1e4e1b8f71e0 1970-01-12 13:46 +0000
+
+  $ cat <<EOF > tmpl
+  > changeset = 'nothing expanded:{rn}\n'
+  > EOF
+  $ hg log -r0 --style ./tmpl
+  nothing expanded:
+
+Aliases in formatter:
+
+  $ hg branches -T '{pad(branch, 7)} {rn}\n'
+  default 6:d41e714fe50d
+  foo     4:bbe44766e73d
 
 Unparsable alias:
 
   $ hg debugtemplate --config templatealias.bad='x(' -v '{bad}'
   (template
     ('symbol', 'bad'))
   abort: failed to parse the definition of template alias "bad": at 2: not a prefix: end
   [255]
+  $ hg log --config templatealias.bad='x(' -T '{bad}'
+  abort: failed to parse the definition of template alias "bad": at 2: not a prefix: end
+  [255]
 
   $ cd ..
 
 Set up repository for non-ascii encoding tests:
 
   $ hg init nonascii
   $ cd nonascii
   $ python <<EOF
   > open('latin1', 'w').write('\xe9')
   > open('utf-8', 'w').write('\xc3\xa9')
   > EOF
   $ HGENCODING=utf-8 hg branch -q `cat utf-8`
   $ HGENCODING=utf-8 hg ci -qAm "non-ascii branch: `cat utf-8`" utf-8
 
 json filter should try round-trip conversion to utf-8:
 
   $ HGENCODING=ascii hg log -T "{branch|json}\n" -r0
   "\u00e9"
   $ HGENCODING=ascii hg log -T "{desc|json}\n" -r0
   "non-ascii branch: \u00e9"
 
 json filter takes input as utf-8b:
 
   $ HGENCODING=ascii hg log -T "{'`cat utf-8`'|json}\n" -l1
   "\u00e9"
   $ HGENCODING=ascii hg log -T "{'`cat latin1`'|json}\n" -l1
   "\udce9"
 
 utf8 filter:
 
   $ HGENCODING=ascii hg log -T "round-trip: {branch|utf8|hex}\n" -r0
   round-trip: c3a9
   $ HGENCODING=latin1 hg log -T "decoded: {'`cat latin1`'|utf8|hex}\n" -l1
   decoded: c3a9
   $ HGENCODING=ascii hg log -T "replaced: {'`cat latin1`'|utf8|hex}\n" -l1
   abort: decoding near * (glob)
   [255]
   $ hg log -T "invalid type: {rev|utf8}\n" -r0
   abort: template filter 'utf8' is not compatible with keyword 'rev'
   [255]
 
   $ cd ..
 
 Test that template function in extension is registered as expected
 
   $ cd a
 
   $ cat <<EOF > $TESTTMP/customfunc.py
   > from mercurial import registrar
   > 
   > templatefunc = registrar.templatefunc()
   > 
   > @templatefunc('custom()')
   > def custom(context, mapping, args):
   >     return 'custom'
   > EOF
   $ cat <<EOF > .hg/hgrc
   > [extensions]
   > customfunc = $TESTTMP/customfunc.py
   > EOF
 
   $ hg log -r . -T "{custom()}\n" --config customfunc.enabled=true
   custom
 
   $ cd ..

tests/test-template-engine.t

@@ -1,54 +1,54 b''
 
   $ cat > engine.py << EOF
   > 
   > from mercurial import templater
   > 
   > class mytemplater(object):
-  >     def __init__(self, loader, filters, defaults):
+  >     def __init__(self, loader, filters, defaults, aliases):
   >         self.loader = loader
   > 
   >     def process(self, t, map):
   >         tmpl = self.loader(t)
   >         for k, v in map.iteritems():
   >             if k in ('templ', 'ctx', 'repo', 'revcache', 'cache'):
   >                 continue
   >             if hasattr(v, '__call__'):
   >                 v = v(**map)
   >             v = templater.stringify(v)
   >             tmpl = tmpl.replace('{{%s}}' % k, v)
   >         yield tmpl
   > 
   > templater.engines['my'] = mytemplater
   > EOF
   $ hg init test
   $ echo '[extensions]' > test/.hg/hgrc
   $ echo "engine = `pwd`/engine.py" >> test/.hg/hgrc
   $ cd test
   $ cat > mymap << EOF
   > changeset = my:changeset.txt
   > EOF
   $ cat > changeset.txt << EOF
   > {{rev}} {{node}} {{author}}
   > EOF
   $ hg ci -Ama
   adding changeset.txt
   adding mymap
   $ hg log --style=./mymap
   0 97e5f848f0936960273bbf75be6388cd0350a32b test
 
   $ cat > changeset.txt << EOF
   > {{p1rev}} {{p1node}} {{p2rev}} {{p2node}}
   > EOF
   $ hg ci -Ama
   $ hg log --style=./mymap
   0 97e5f848f0936960273bbf75be6388cd0350a32b -1 0000000000000000000000000000000000000000
   -1 0000000000000000000000000000000000000000 -1 0000000000000000000000000000000000000000
 
 invalid engine type:
 
   $ echo 'changeset = unknown:changeset.txt' > unknownenginemap
   $ hg log --style=./unknownenginemap
   abort: invalid template engine: unknown
   [255]
 
   $ cd ..