merge with brendan

contrib/churn.py

@@ -0,0 +1,179 b''
+# churn.py - create a graph showing who changed the most lines
+#
+# Copyright 2006 Josef "Jeff" Sipek <[e-mail]>
+#
+# This software may be used and distributed according to the terms
+# of the GNU General Public License, incorporated herein by reference.
+#
+#
+# Aliases map file format is simple one alias per line in the following
+# format:
+#
+# <alias email> <actual email>
+
+from mercurial.demandload import *
+from mercurial.i18n import gettext as _
+demandload(globals(), 'time sys signal os')
+demandload(globals(), 'mercurial:hg,mdiff,fancyopts,commands,ui,util,templater,node')
+
+def __gather(ui, repo, node1, node2):
+    def dirtywork(f, mmap1, mmap2):
+        lines = 0
+
+        to = mmap1 and repo.file(f).read(mmap1[f]) or None
+        tn = mmap2 and repo.file(f).read(mmap2[f]) or None
+
+        diff = mdiff.unidiff(to, "", tn, "", f).split("\n")
+
+        for line in diff:
+            if not line:
+                continue # skip EOF
+            if line.startswith(" "):
+                continue # context line
+            if line.startswith("--- ") or line.startswith("+++ "):
+                continue # begining of diff
+            if line.startswith("@@ "):
+                continue # info line
+
+            # changed lines
+            lines += 1
+
+        return lines
+
+    ##
+
+    lines = 0
+
+    changes = repo.status(node1, node2, None, util.always)[:5]
+
+    modified, added, removed, deleted, unknown = changes
+
+    who = repo.changelog.read(node2)[1]
+    who = templater.email(who) # get the email of the person
+
+    mmap1 = repo.manifest.read(repo.changelog.read(node1)[0])
+    mmap2 = repo.manifest.read(repo.changelog.read(node2)[0])
+    for f in modified:
+        lines += dirtywork(f, mmap1, mmap2)
+
+    for f in added:
+        lines += dirtywork(f, None, mmap2)
+        
+    for f in removed:
+        lines += dirtywork(f, mmap1, None)
+
+    for f in deleted:
+        lines += dirtywork(f, mmap1, mmap2)
+
+    for f in unknown:
+        lines += dirtywork(f, mmap1, mmap2)
+
+    return (who, lines)
+
+def gather_stats(ui, repo, amap, revs=None, progress=False):
+    stats = {}
+    
+    cl    = repo.changelog
+
+    if not revs:
+        revs = range(0, cl.count())
+
+    nr_revs = len(revs)
+    cur_rev = 0
+
+    for rev in revs:
+        cur_rev += 1 # next revision
+
+        node2    = cl.node(rev)
+        node1    = cl.parents(node2)[0]
+
+        if cl.parents(node2)[1] != node.nullid:
+            ui.note(_('Revision %d is a merge, ignoring...\n') % (rev,))
+            continue
+
+        who, lines = __gather(ui, repo, node1, node2)
+
+        # remap the owner if possible
+        if amap.has_key(who):
+            ui.note("using '%s' alias for '%s'\n" % (amap[who], who))
+            who = amap[who]
+
+        if not stats.has_key(who):
+            stats[who] = 0
+        stats[who] += lines
+
+        ui.note("rev %d: %d lines by %s\n" % (rev, lines, who))
+
+        if progress:
+            if int(100.0*(cur_rev - 1)/nr_revs) < int(100.0*cur_rev/nr_revs):
+                ui.write("%d%%.." % (int(100.0*cur_rev/nr_revs),))
+                sys.stdout.flush()
+
+    if progress:
+        ui.write("done\n")
+        sys.stdout.flush()
+
+    return stats
+
+def churn(ui, repo, **opts):
+    "Graphs the number of lines changed"
+    
+    def pad(s, l):
+        if len(s) < l:
+            return s + " " * (l-len(s))
+        return s[0:l]
+
+    def graph(n, maximum, width, char):
+        n = int(n * width / float(maximum))
+        
+        return char * (n)
+
+    def get_aliases(f):
+        aliases = {}
+
+        for l in f.readlines():
+            l = l.strip()
+            alias, actual = l.split(" ")
+            aliases[alias] = actual
+
+        return aliases
+    
+    amap = {}
+    aliases = opts.get('aliases')
+    if aliases:
+        try:
+            f = open(aliases,"r")
+        except OSError, e:
+            print "Error: " + e
+            return
+
+        amap = get_aliases(f)
+        f.close()
+
+    revs = [int(r) for r in commands.revrange(ui, repo, opts['rev'])]
+    revs.sort()
+    stats = gather_stats(ui, repo, amap, revs, opts.get('progress'))
+
+    # make a list of tuples (name, lines) and sort it in descending order
+    ordered = stats.items()
+    ordered.sort(cmp=lambda x, y: cmp(y[1], x[1]))
+
+    maximum = ordered[0][1]
+
+    ui.note("Assuming 80 character terminal\n")
+    width = 80 - 1
+
+    for i in ordered:
+        person = i[0]
+        lines = i[1]
+        print "%s %6d %s" % (pad(person, 20), lines,
+                graph(lines, maximum, width - 20 - 1 - 6 - 2 - 2, '*'))
+
+cmdtable = {
+    "churn":
+    (churn,
+     [('r', 'rev', [], _('limit statistics to the specified revisions')),
+      ('', 'aliases', '', _('file with email aliases')),
+      ('', 'progress', None, _('show progress'))],
+    'hg churn [-r revision range] [-a file] [--progress]'),
+}

doc/hgrc.5.txt

@@ -1,493 +1,508 b''
 HGRC(5)
 =======
 Bryan O'Sullivan <[e-mail]>
 
 NAME
 ----
 hgrc - configuration files for Mercurial
 
 SYNOPSIS
 --------
 
 The Mercurial system uses a set of configuration files to control
 aspects of its behaviour.
 
 FILES
 -----
 
 Mercurial reads configuration data from several files, if they exist.
 The names of these files depend on the system on which Mercurial is
 installed.
 
 (Unix)    <install-root>/etc/mercurial/hgrc.d/*.rc::
 (Unix)    <install-root>/etc/mercurial/hgrc::
     Per-installation configuration files, searched for in the
     directory where Mercurial is installed.  For example, if installed
     in /shared/tools, 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.
 
 (Unix)    /etc/mercurial/hgrc.d/*.rc::
 (Unix)    /etc/mercurial/hgrc::
 (Windows) C:\Mercurial\Mercurial.ini::
     Per-system configuration files, 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.
 
 (Unix)    $HOME/.hgrc::
 (Windows) C:\Documents and Settings\USERNAME\Mercurial.ini::
 (Windows) $HOME\Mercurial.ini::
     Per-user configuration file, for the user running Mercurial.
     Options in this file apply to all Mercurial commands executed by
     any user in any directory.  Options in this file override
     per-installation and per-system options.
     On Windows system, one of these is chosen exclusively according
     to definition of HOME environment variable.
 
 (Unix, Windows) <repo>/.hg/hgrc::
     Per-repository configuration options that 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.
     On Unix, this file is only read if it belongs to a trusted user
     or to a trusted group.
 
 SYNTAX
 ------
 
 A configuration file consists of sections, led by a "[section]" header
 and followed by "name: value" entries; "name=value" is also accepted.
 
     [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.
 
 The optional values can contain format strings which refer to other
 values in the same section, or values in a special DEFAULT section.
 
 Lines beginning with "#" or ";" are ignored and may be used to provide
 comments.
 
 SECTIONS
 --------
 
 This section describes the different sections that may appear in a
 Mercurial "hgrc" file, the purpose of each section, its possible
 keys, and their possible values.
 
 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".
 
   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.
 
   NOTE: the tempfile mechanism is recommended for Windows systems,
   where the standard shell I/O redirection operators often have
   strange effects.  In particular, if you are doing line ending
   conversion on Windows using the popular dos2unix and unix2dos
   programs, you *must* use the tempfile mechanism, as using pipes will
   corrupt the contents of your files.
 
   Tempfile example:
 
     [encode]
     # convert files to unix line ending conventions on checkin
     **.txt = tempfile: dos2unix -n INFILE OUTFILE
 
     [decode]
     # convert files to windows line ending conventions when writing
     # them to the working dir
     **.txt = tempfile: unix2dos -n INFILE OUTFILE
 
+defaults::
+  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.
+
 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.  Cannot be set interactively.
   method;;
     Optional.  Method to use to send email messages.  If value is
     "smtp" (default), use SMTP (see section "[smtp]" 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.
 
   Email example:
 
     [email]
     from = Joseph User <[e-mail]>
     method = /usr/sbin/sendmail
 
 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.
 
   Example for ~/.hgrc:
 
     [extensions]
     # (the mq extension will get loaded from mercurial's path)
     hgext.mq =
     # (this extension will get loaded from the file specified)
     myfeature = ~/.hgext/myfeature.py
 
 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.
 
   Example .hg/hgrc:
 
     [hooks]
     # do not use the site-wide hook
     incoming =
     incoming.email = /my/email/hook
     incoming.autobuild = /my/build/hook
 
   Most hooks are run with environment variables set that give added
   useful 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.  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; see "preoutgoing" hook for description.
   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.
   preoutgoing;;
     Run before computing 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.
   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 repo if $HG_LOCAL=0.
   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.  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.
   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 repo 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 update succeeded, $HG_ERROR=0.  If update
     failed (e.g. because conflicts not resolved), $HG_ERROR=1.
 
   Note: In earlier releases, the names of hook environment variables
   did not have a "HG_" prefix.  The old unprefixed names are no longer
   provided in the environment.
 
   The syntax for Python hooks is as follows:
 
     hookname = python:modulename.submodule.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.
 
   A Python hook must return a "true" value to succeed.  Returning a
   "false" value or raising an exception is treated as failure of the
   hook.
 
 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.
 
 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: 25.
   tls;;
     Optional.  Whether to connect to mail server using TLS.  True or
     False.  Default: False.
   username;;
     Optional.  User name to authenticate to SMTP server with.
     If username is specified, password must also be specified.
     Default: none.
   password;;
     Optional.  Password to authenticate to SMTP server with.
     If username is specified, password must also be specified.
     Default: none.
   local_hostname;;
     Optional.  It's the hostname that the sender can use to identify itself
     to the MTA.
 
 paths::
   Assigns symbolic names to repositories.  The left side is the
   symbolic name, and the right gives the directory or URL that is the
   location of the repository.  Default paths can be declared by
   setting the following entries.
   default;;
     Directory or URL to use when pulling if no source is specified.
     Default is set to repository from which the current repository
     was cloned.
   default-push;;
     Optional.  Directory or URL to use when pushing if no destination
     is specified.
 
 server::
   Controls generic server settings.
   uncompressed;;
     Whether to allow clients to clone a repo 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 (100Mbps 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
     6Mbps), uncompressed streaming is slower, because of the extra
     data transfer overhead.  Default is False.
 
 trusted::
   Mercurial will only read the .hg/hgrc file from a repository if
   it belongs to a trusted user or to a trusted group. This section
   specifies what users and groups are trusted. To trust everybody,
   list a user or a group with name "*".
   users;;
     Comma-separated list of trusted users.
   groups;;
     Comma-separated list of trusted groups.
 
 ui::
   User interface controls.
   debug;;
     Print debugging information.  True or False.  Default is False.
   editor;;
     The editor to use during a commit.  Default is $EDITOR or "vi".
   ignore;;
     A file to read per-user ignore patterns from. This file should be in
     the same format as a repository-wide .hgignore file. 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.  True or False.  Default is True.
   logtemplate;;
     Template string for commands that print changesets.
   style;;
     Name of style to use for command output.
   merge;;
     The conflict resolution program to use during a manual merge.
     Default is "hgmerge".
   quiet;;
     Reduce the amount of output printed.  True or False.  Default is False.
   remotecmd;;
     remote command to use for clone/push/pull operations. Default is 'hg'.
   ssh;;
     command to use for SSH connections. Default is 'ssh'.
   strict;;
     Require exact command names, instead of allowing unambiguous
     abbreviations.  True or False.  Default is False.
   timeout;;
     The timeout used when a lock is held (in seconds), a negative value
     means no timeout. Default is 600.
   username;;
     The committer of a changeset created when running "commit".
     Typically a person's name and email address, e.g. "Fred Widget
     <[e-mail]>".  Default is $EMAIL or username@hostname, unless
     username is set to an empty string, which enforces specifying the
     username manually.
   verbose;;
     Increase the amount of output printed.  True or False.  Default is False.
 
 
 web::
   Web interface configuration.
   accesslog;;
     Where to output the access log. Default is stdout.
   address;;
     Interface address to bind to. Default is all.
   allow_archive;;
     List of archive format (bz2, gz, zip) allowed for downloading.
     Default is empty.
   allowbz2;;
     (DEPRECATED) Whether to allow .tar.bz2 downloading of repo revisions.
     Default is false.
   allowgz;;
     (DEPRECATED) Whether to allow .tar.gz downloading of repo revisions.
     Default is false.
   allowpull;;
     Whether to allow pulling from the repository. Default is true.
   allow_push;;
     Whether to allow pushing to the repository.  If empty or not set,
     push 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 (separated by whitespace or ",").
     The contents of the allow_push list are examined after the
     deny_push list.
   allowzip;;
     (DEPRECATED) Whether to allow .zip downloading of repo revisions.
     Default is false. This feature creates temporary files.
   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/"
   contact;;
     Name or email address of the person in charge of the repository.
     Default is "unknown".
   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 (separated by
     whitespace or ",") is also denied.  The contents of the deny_push
     list are examined before the allow_push list.
   description;;
     Textual description of the repository's purpose or contents.
     Default is "unknown".
   errorlog;;
     Where to output the error log. Default is stderr.
   ipv6;;
     Whether to use IPv6. Default is false.
   name;;
     Repository name to use in the web interface. Default is current
     working directory.
   maxchanges;;
     Maximum number of changes to list on the changelog. Default is 10.
   maxfiles;;
     Maximum number of files to list per changeset. Default is 10.
   port;;
     Port to listen on. Default is 8000.
   push_ssl;;
     Whether to require that inbound pushes be transported over SSL to
     prevent password sniffing.  Default is true.
   stripes;;
     How many lines a "zebra stripe" should span in multiline output.
     Default is 1; set to 0 to disable.
   style;;
     Which template map style to use.
   templates;;
     Where to find the HTML templates. Default is install path.
 
 
 AUTHOR
 ------
 Bryan O'Sullivan <[e-mail]>.
 
 Mercurial was written by Matt Mackall <[e-mail]>.
 
 SEE ALSO
 --------
 hg(1), hgignore(5)
 
 COPYING
 -------
 This manual page is copyright 2005 Bryan O'Sullivan.
 Mercurial is copyright 2005, 2006 Matt Mackall.
 Free use of this software is granted under the terms of the GNU General
 Public License (GPL).

mercurial/hg.py

@@ -1,236 +1,231 b''
 # hg.py - repository classes for mercurial
 #
 # Copyright 2005, 2006 Matt Mackall <[e-mail]>
 # Copyright 2006 Vadim Gelfer <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import *
 from repo import *
 from demandload import *
 from i18n import gettext as _
 demandload(globals(), "localrepo bundlerepo httprepo sshrepo statichttprepo")
 demandload(globals(), "errno lock os shutil util merge@_merge verify@_verify")
 
 def _local(path):
     return (os.path.isfile(path and util.drop_scheme('file', path)) and
             bundlerepo or localrepo)
 
 schemes = {
     'bundle': bundlerepo,
     'file': _local,
     'hg': httprepo,
     'http': httprepo,
     'https': httprepo,
     'old-http': statichttprepo,
     'ssh': sshrepo,
     'static-http': statichttprepo,
     }
 
 def _lookup(path):
     scheme = 'file'
     if path:
         c = path.find(':')
         if c > 0:
             scheme = path[:c]
     thing = schemes.get(scheme) or schemes['file']
     try:
         return thing(path)
     except TypeError:
         return thing
 
 def islocal(repo):
     '''return true if repo or path is local'''
     if isinstance(repo, str):
         try:
             return _lookup(repo).islocal(repo)
         except AttributeError:
             return False
     return repo.local()
 
 repo_setup_hooks = []
 
 def repository(ui, path=None, create=False):
     """return a repository object for the specified path"""
     repo = _lookup(path).instance(ui, path, create)
     for hook in repo_setup_hooks:
         hook(ui, repo)
     return repo
 
 def defaultdest(source):
     '''return default destination of clone if none is given'''
     return os.path.basename(os.path.normpath(source))
 
 def clone(ui, source, dest=None, pull=False, rev=None, update=True,
           stream=False):
     """Make a copy of an existing repository.
 
     Create a copy of an existing repository in a new directory.  The
     source and destination are URLs, as passed to the repository
     function.  Returns a pair of repository objects, the source and
     newly created destination.
 
     The location of the source is added to the new repository's
     .hg/hgrc file, as the default to be used for future pulls and
     pushes.
 
     If an exception is raised, the partly cloned/updated destination
     repository will be deleted.
 
     Arguments:
 
     source: repository object or URL
 
     dest: URL of destination repository to create (defaults to base
     name of source repository)
 
     pull: always pull from source repository, even in local case
 
     stream: stream raw data uncompressed from repository (fast over
     LAN, slow over WAN)
 
     rev: revision to clone up to (implies pull=True)
 
     update: update working directory after clone completes, if
     destination is local repository
     """
     if isinstance(source, str):
         src_repo = repository(ui, source)
     else:
         src_repo = source
         source = src_repo.url()
 
     if dest is None:
         dest = defaultdest(source)
 
     def localpath(path):
         if path.startswith('file://'):
             return path[7:]
         if path.startswith('file:'):
             return path[5:]
         return path
 
     dest = localpath(dest)
     source = localpath(source)
 
     if os.path.exists(dest):
         raise util.Abort(_("destination '%s' already exists"), dest)
 
     class DirCleanup(object):
         def __init__(self, dir_):
             self.rmtree = shutil.rmtree
             self.dir_ = dir_
         def close(self):
             self.dir_ = None
         def __del__(self):
             if self.dir_:
                 self.rmtree(self.dir_, True)
 
-    dest_repo = None
-    try:
-        dest_repo = repository(ui, dest)
-        raise util.Abort(_("destination '%s' already exists." % dest))
-    except RepoError:
         dest_repo = repository(ui, dest, create=True)
 
     dest_path = None
     dir_cleanup = None
     if dest_repo.local():
         dest_path = os.path.realpath(dest_repo.root)
         dir_cleanup = DirCleanup(dest_path)
 
     abspath = source
     copy = False
     if src_repo.local() and dest_repo.local():
         abspath = os.path.abspath(source)
         copy = not pull and not rev
 
     src_lock, dest_lock = None, None
     if copy:
         try:
             # we use a lock here because if we race with commit, we
             # can end up with extra data in the cloned revlogs that's
             # not pointed to by changesets, thus causing verify to
             # fail
             src_lock = src_repo.lock()
         except lock.LockException:
             copy = False
 
     if copy:
         # we lock here to avoid premature writing to the target
         dest_lock = lock.lock(os.path.join(dest_path, ".hg", "lock"))
 
         # we need to remove the (empty) data dir in dest so copyfiles
         # can do its work
         os.rmdir(os.path.join(dest_path, ".hg", "data"))
         files = "data 00manifest.d 00manifest.i 00changelog.d 00changelog.i"
         for f in files.split():
             src = os.path.join(source, ".hg", f)
             dst = os.path.join(dest_path, ".hg", f)
             try:
                 util.copyfiles(src, dst)
             except OSError, inst:
                 if inst.errno != errno.ENOENT:
                     raise
 
         # we need to re-init the repo after manually copying the data
         # into it
         dest_repo = repository(ui, dest)
 
     else:
         revs = None
         if rev:
             if not src_repo.local():
                 raise util.Abort(_("clone by revision not supported yet "
                                    "for remote repositories"))
             revs = [src_repo.lookup(r) for r in rev]
 
         if dest_repo.local():
             dest_repo.clone(src_repo, heads=revs, stream=stream)
         elif src_repo.local():
             src_repo.push(dest_repo, revs=revs)
         else:
             raise util.Abort(_("clone from remote to remote not supported"))
 
     if src_lock:
         src_lock.release()
 
     if dest_repo.local():
         fp = dest_repo.opener("hgrc", "w", text=True)
         fp.write("[paths]\n")
         fp.write("default = %s\n" % abspath)
         fp.close()
 
         if dest_lock:
             dest_lock.release()
 
         if update:
             _merge.update(dest_repo, dest_repo.changelog.tip())
     if dir_cleanup:
         dir_cleanup.close()
 
     return src_repo, dest_repo
 
 def update(repo, node):
     """update the working directory to node, merging linear changes"""
     return _merge.update(repo, node)
 
 def clean(repo, node, wlock=None, show_stats=True):
     """forcibly switch the working directory to node, clobbering changes"""
     return _merge.update(repo, node, force=True, wlock=wlock,
                          show_stats=show_stats)
 
 def merge(repo, node, force=None, remind=True, wlock=None):
     """branch merge with node, resolving changes"""
     return _merge.update(repo, node, branchmerge=True, force=force,
                          remind=remind, wlock=wlock)
 
 def revert(repo, node, choose, wlock):
     """revert changes to revision in node without updating dirstate"""
     return _merge.update(repo, node, force=True, partial=choose,
                          show_stats=False, wlock=wlock)
 
 def verify(repo):
     """verify the consistency of a repository"""
     return _verify.verify(repo)

mercurial/localrepo.py

@@ -1,1749 +1,1751 b''
 # localrepo.py - read/write repository class for mercurial
 #
 # Copyright 2005, 2006 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import *
 from i18n import gettext as _
 from demandload import *
 import repo
 demandload(globals(), "appendfile changegroup")
 demandload(globals(), "changelog dirstate filelog manifest context")
 demandload(globals(), "re lock transaction tempfile stat mdiff errno ui")
 demandload(globals(), "os revlog time util")
 
 class localrepository(repo.repository):
     capabilities = ()
 
     def __del__(self):
         self.transhandle = None
     def __init__(self, parentui, path=None, create=0):
         repo.repository.__init__(self)
         if not path:
             p = os.getcwd()
             while not os.path.isdir(os.path.join(p, ".hg")):
                 oldp = p
                 p = os.path.dirname(p)
                 if p == oldp:
                     raise repo.RepoError(_("no repo found"))
             path = p
         self.path = os.path.join(path, ".hg")
 
-        if not create and not os.path.isdir(self.path):
+        if not os.path.isdir(self.path):
+            if create:
+                if not os.path.exists(path):
+                    os.mkdir(path)
+                os.mkdir(self.path)
+                os.mkdir(self.join("data"))
+            else:
             raise repo.RepoError(_("repository %s not found") % path)
+        elif create:
+            raise repo.RepoError(_("repository %s already exists") % path)
 
         self.root = os.path.abspath(path)
         self.origroot = path
         self.ui = ui.ui(parentui=parentui)
         self.opener = util.opener(self.path)
         self.wopener = util.opener(self.root)
 
         try:
             self.ui.readconfig(self.join("hgrc"), self.root)
         except IOError:
             pass
 
         v = self.ui.revlogopts
         self.revlogversion = int(v.get('format', revlog.REVLOG_DEFAULT_FORMAT))
         self.revlogv1 = self.revlogversion != revlog.REVLOGV0
         fl = v.get('flags', None)
         flags = 0
         if fl != None:
             for x in fl.split():
                 flags |= revlog.flagstr(x)
         elif self.revlogv1:
             flags = revlog.REVLOG_DEFAULT_FLAGS
 
         v = self.revlogversion | flags
         self.manifest = manifest.manifest(self.opener, v)
         self.changelog = changelog.changelog(self.opener, v)
 
         # the changelog might not have the inline index flag
         # on.  If the format of the changelog is the same as found in
         # .hgrc, apply any flags found in the .hgrc as well.
         # Otherwise, just version from the changelog
         v = self.changelog.version
         if v == self.revlogversion:
             v |= flags
         self.revlogversion = v
 
         self.tagscache = None
         self.nodetagscache = None
         self.encodepats = None
         self.decodepats = None
         self.transhandle = None
 
-        if create:
-            if not os.path.exists(path):
-                os.mkdir(path)
-            os.mkdir(self.path)
-            os.mkdir(self.join("data"))
-
         self.dirstate = dirstate.dirstate(self.opener, self.ui, self.root)
 
     def url(self):
         return 'file:' + self.root
 
     def hook(self, name, throw=False, **args):
         def callhook(hname, funcname):
             '''call python hook. hook is callable object, looked up as
             name in python module. if callable returns "true", hook
             fails, else passes. if hook raises exception, treated as
             hook failure. exception propagates if throw is "true".
 
             reason for "true" meaning "hook failed" is so that
             unmodified commands (e.g. mercurial.commands.update) can
             be run as hooks without wrappers to convert return values.'''
 
             self.ui.note(_("calling hook %s: %s\n") % (hname, funcname))
             d = funcname.rfind('.')
             if d == -1:
                 raise util.Abort(_('%s hook is invalid ("%s" not in a module)')
                                  % (hname, funcname))
             modname = funcname[:d]
             try:
                 obj = __import__(modname)
             except ImportError:
                 try:
                     # extensions are loaded with hgext_ prefix
                     obj = __import__("hgext_%s" % modname)
                 except ImportError:
                     raise util.Abort(_('%s hook is invalid '
                                        '(import of "%s" failed)') %
                                      (hname, modname))
             try:
                 for p in funcname.split('.')[1:]:
                     obj = getattr(obj, p)
             except AttributeError, err:
                 raise util.Abort(_('%s hook is invalid '
                                    '("%s" is not defined)') %
                                  (hname, funcname))
             if not callable(obj):
                 raise util.Abort(_('%s hook is invalid '
                                    '("%s" is not callable)') %
                                  (hname, funcname))
             try:
                 r = obj(ui=self.ui, repo=self, hooktype=name, **args)
             except (KeyboardInterrupt, util.SignalInterrupt):
                 raise
             except Exception, exc:
                 if isinstance(exc, util.Abort):
                     self.ui.warn(_('error: %s hook failed: %s\n') %
                                  (hname, exc.args[0] % exc.args[1:]))
                 else:
                     self.ui.warn(_('error: %s hook raised an exception: '
                                    '%s\n') % (hname, exc))
                 if throw:
                     raise
                 self.ui.print_exc()
                 return True
             if r:
                 if throw:
                     raise util.Abort(_('%s hook failed') % hname)
                 self.ui.warn(_('warning: %s hook failed\n') % hname)
             return r
 
         def runhook(name, cmd):
             self.ui.note(_("running hook %s: %s\n") % (name, cmd))
             env = dict([('HG_' + k.upper(), v) for k, v in args.iteritems()])
             r = util.system(cmd, environ=env, cwd=self.root)
             if r:
                 desc, r = util.explain_exit(r)
                 if throw:
                     raise util.Abort(_('%s hook %s') % (name, desc))
                 self.ui.warn(_('warning: %s hook %s\n') % (name, desc))
             return r
 
         r = False
         hooks = [(hname, cmd) for hname, cmd in self.ui.configitems("hooks")
                  if hname.split(".", 1)[0] == name and cmd]
         hooks.sort()
         for hname, cmd in hooks:
             if cmd.startswith('python:'):
                 r = callhook(hname, cmd[7:].strip()) or r
             else:
                 r = runhook(hname, cmd) or r
         return r
 
     tag_disallowed = ':\r\n'
 
     def tag(self, name, node, message, local, user, date):
         '''tag a revision with a symbolic name.
 
         if local is True, the tag is stored in a per-repository file.
         otherwise, it is stored in the .hgtags file, and a new
         changeset is committed with the change.
 
         keyword arguments:
 
         local: whether to store tag in non-version-controlled file
         (default False)
 
         message: commit message to use if committing
 
         user: name of user to use if committing
 
         date: date tuple to use if committing'''
 
         for c in self.tag_disallowed:
             if c in name:
                 raise util.Abort(_('%r cannot be used in a tag name') % c)
 
         self.hook('pretag', throw=True, node=hex(node), tag=name, local=local)
 
         if local:
             self.opener('localtags', 'a').write('%s %s\n' % (hex(node), name))
             self.hook('tag', node=hex(node), tag=name, local=local)
             return
 
         for x in self.status()[:5]:
             if '.hgtags' in x:
                 raise util.Abort(_('working copy of .hgtags is changed '
                                    '(please commit .hgtags manually)'))
 
         self.wfile('.hgtags', 'ab').write('%s %s\n' % (hex(node), name))
         if self.dirstate.state('.hgtags') == '?':
             self.add(['.hgtags'])
 
         self.commit(['.hgtags'], message, user, date)
         self.hook('tag', node=hex(node), tag=name, local=local)
 
     def tags(self):
         '''return a mapping of tag to node'''
         if not self.tagscache:
             self.tagscache = {}
 
             def parsetag(line, context):
                 if not line:
                     return
                 s = l.split(" ", 1)
                 if len(s) != 2:
                     self.ui.warn(_("%s: cannot parse entry\n") % context)
                     return
                 node, key = s
                 key = key.strip()
                 try:
                     bin_n = bin(node)
                 except TypeError:
                     self.ui.warn(_("%s: node '%s' is not well formed\n") %
                                  (context, node))
                     return
                 if bin_n not in self.changelog.nodemap:
                     self.ui.warn(_("%s: tag '%s' refers to unknown node\n") %
                                  (context, key))
                     return
                 self.tagscache[key] = bin_n
 
             # read the tags file from each head, ending with the tip,
             # and add each tag found to the map, with "newer" ones
             # taking precedence
             heads = self.heads()
             heads.reverse()
             fl = self.file(".hgtags")
             for node in heads:
                 change = self.changelog.read(node)
                 rev = self.changelog.rev(node)
                 fn, ff = self.manifest.find(change[0], '.hgtags')
                 if fn is None: continue
                 count = 0
                 for l in fl.read(fn).splitlines():
                     count += 1
                     parsetag(l, _(".hgtags (rev %d:%s), line %d") %
                              (rev, short(node), count))
             try:
                 f = self.opener("localtags")
                 count = 0
                 for l in f:
                     count += 1
                     parsetag(l, _("localtags, line %d") % count)
             except IOError:
                 pass
 
             self.tagscache['tip'] = self.changelog.tip()
 
         return self.tagscache
 
     def tagslist(self):
         '''return a list of tags ordered by revision'''
         l = []
         for t, n in self.tags().items():
             try:
                 r = self.changelog.rev(n)
             except:
                 r = -2 # sort to the beginning of the list if unknown
             l.append((r, t, n))
         l.sort()
         return [(t, n) for r, t, n in l]
 
     def nodetags(self, node):
         '''return the tags associated with a node'''
         if not self.nodetagscache:
             self.nodetagscache = {}
             for t, n in self.tags().items():
                 self.nodetagscache.setdefault(n, []).append(t)
         return self.nodetagscache.get(node, [])
 
     def lookup(self, key):
         try:
             return self.tags()[key]
         except KeyError:
             if key == '.':
                 key = self.dirstate.parents()[0]
                 if key == nullid:
                     raise repo.RepoError(_("no revision checked out"))
             try:
                 return self.changelog.lookup(key)
             except:
                 raise repo.RepoError(_("unknown revision '%s'") % key)
 
     def dev(self):
         return os.lstat(self.path).st_dev
 
     def local(self):
         return True
 
     def join(self, f):
         return os.path.join(self.path, f)
 
     def wjoin(self, f):
         return os.path.join(self.root, f)
 
     def file(self, f):
         if f[0] == '/':
             f = f[1:]
         return filelog.filelog(self.opener, f, self.revlogversion)
 
     def changectx(self, changeid):
         return context.changectx(self, changeid)
 
     def filectx(self, path, changeid=None, fileid=None):
         """changeid can be a changeset revision, node, or tag.
            fileid can be a file revision or node."""
         return context.filectx(self, path, changeid, fileid)
 
     def getcwd(self):
         return self.dirstate.getcwd()
 
     def wfile(self, f, mode='r'):
         return self.wopener(f, mode)
 
     def wread(self, filename):
         if self.encodepats == None:
             l = []
             for pat, cmd in self.ui.configitems("encode"):
                 mf = util.matcher(self.root, "", [pat], [], [])[1]
                 l.append((mf, cmd))
             self.encodepats = l
 
         data = self.wopener(filename, 'r').read()
 
         for mf, cmd in self.encodepats:
             if mf(filename):
                 self.ui.debug(_("filtering %s through %s\n") % (filename, cmd))
                 data = util.filter(data, cmd)
                 break
 
         return data
 
     def wwrite(self, filename, data, fd=None):
         if self.decodepats == None:
             l = []
             for pat, cmd in self.ui.configitems("decode"):
                 mf = util.matcher(self.root, "", [pat], [], [])[1]
                 l.append((mf, cmd))
             self.decodepats = l
 
         for mf, cmd in self.decodepats:
             if mf(filename):
                 self.ui.debug(_("filtering %s through %s\n") % (filename, cmd))
                 data = util.filter(data, cmd)
                 break
 
         if fd:
             return fd.write(data)
         return self.wopener(filename, 'w').write(data)
 
     def transaction(self):
         tr = self.transhandle
         if tr != None and tr.running():
             return tr.nest()
 
         # save dirstate for rollback
         try:
             ds = self.opener("dirstate").read()
         except IOError:
             ds = ""
         self.opener("journal.dirstate", "w").write(ds)
 
         tr = transaction.transaction(self.ui.warn, self.opener,
                                        self.join("journal"),
                                        aftertrans(self.path))
         self.transhandle = tr
         return tr
 
     def recover(self):
         l = self.lock()
         if os.path.exists(self.join("journal")):
             self.ui.status(_("rolling back interrupted transaction\n"))
             transaction.rollback(self.opener, self.join("journal"))
             self.reload()
             return True
         else:
             self.ui.warn(_("no interrupted transaction available\n"))
             return False
 
     def rollback(self, wlock=None):
         if not wlock:
             wlock = self.wlock()
         l = self.lock()
         if os.path.exists(self.join("undo")):
             self.ui.status(_("rolling back last transaction\n"))
             transaction.rollback(self.opener, self.join("undo"))
             util.rename(self.join("undo.dirstate"), self.join("dirstate"))
             self.reload()
             self.wreload()
         else:
             self.ui.warn(_("no rollback information available\n"))
 
     def wreload(self):
         self.dirstate.read()
 
     def reload(self):
         self.changelog.load()
         self.manifest.load()
         self.tagscache = None
         self.nodetagscache = None
 
     def do_lock(self, lockname, wait, releasefn=None, acquirefn=None,
                 desc=None):
         try:
             l = lock.lock(self.join(lockname), 0, releasefn, desc=desc)
         except lock.LockHeld, inst:
             if not wait:
                 raise
             self.ui.warn(_("waiting for lock on %s held by %s\n") %
                          (desc, inst.args[0]))
             # default to 600 seconds timeout
             l = lock.lock(self.join(lockname),
                           int(self.ui.config("ui", "timeout") or 600),
                           releasefn, desc=desc)
         if acquirefn:
             acquirefn()
         return l
 
     def lock(self, wait=1):
         return self.do_lock("lock", wait, acquirefn=self.reload,
                             desc=_('repository %s') % self.origroot)
 
     def wlock(self, wait=1):
         return self.do_lock("wlock", wait, self.dirstate.write,
                             self.wreload,
                             desc=_('working directory of %s') % self.origroot)
 
     def checkfilemerge(self, filename, text, filelog, manifest1, manifest2):
         "determine whether a new filenode is needed"
         fp1 = manifest1.get(filename, nullid)
         fp2 = manifest2.get(filename, nullid)
 
         if fp2 != nullid:
             # is one parent an ancestor of the other?
             fpa = filelog.ancestor(fp1, fp2)
             if fpa == fp1:
                 fp1, fp2 = fp2, nullid
             elif fpa == fp2:
                 fp2 = nullid
 
             # is the file unmodified from the parent? report existing entry
             if fp2 == nullid and text == filelog.read(fp1):
                 return (fp1, None, None)
 
         return (None, fp1, fp2)
 
     def rawcommit(self, files, text, user, date, p1=None, p2=None, wlock=None):
         orig_parent = self.dirstate.parents()[0] or nullid
         p1 = p1 or self.dirstate.parents()[0] or nullid
         p2 = p2 or self.dirstate.parents()[1] or nullid
         c1 = self.changelog.read(p1)
         c2 = self.changelog.read(p2)
         m1 = self.manifest.read(c1[0]).copy()
         m2 = self.manifest.read(c2[0])
         changed = []
 
         if orig_parent == p1:
             update_dirstate = 1
         else:
             update_dirstate = 0
 
         if not wlock:
             wlock = self.wlock()
         l = self.lock()
         tr = self.transaction()
         linkrev = self.changelog.count()
         for f in files:
             try:
                 t = self.wread(f)
                 m1.set(f, util.is_exec(self.wjoin(f), m1.execf(f)))
                 r = self.file(f)
 
                 (entry, fp1, fp2) = self.checkfilemerge(f, t, r, m1, m2)
                 if entry:
                     m1[f] = entry
                     continue
 
                 m1[f] = r.add(t, {}, tr, linkrev, fp1, fp2)
                 changed.append(f)
                 if update_dirstate:
                     self.dirstate.update([f], "n")
             except IOError:
                 try:
                     del m1[f]
                     if update_dirstate:
                         self.dirstate.forget([f])
                 except:
                     # deleted from p2?
                     pass
 
         mnode = self.manifest.add(m1, tr, linkrev, c1[0], c2[0])
         user = user or self.ui.username()
         n = self.changelog.add(mnode, changed, text, tr, p1, p2, user, date)
         tr.close()
         if update_dirstate:
             self.dirstate.setparents(n, nullid)
 
     def commit(self, files=None, text="", user=None, date=None,
                match=util.always, force=False, lock=None, wlock=None,
                force_editor=False):
         commit = []
         remove = []
         changed = []
 
         if files:
             for f in files:
                 s = self.dirstate.state(f)
                 if s in 'nmai':
                     commit.append(f)
                 elif s == 'r':
                     remove.append(f)
                 else:
                     self.ui.warn(_("%s not tracked!\n") % f)
         else:
             modified, added, removed, deleted, unknown = self.status(match=match)[:5]
             commit = modified + added
             remove = removed
 
         p1, p2 = self.dirstate.parents()
         c1 = self.changelog.read(p1)
         c2 = self.changelog.read(p2)
         m1 = self.manifest.read(c1[0]).copy()
         m2 = self.manifest.read(c2[0])
 
         if not commit and not remove and not force and p2 == nullid:
             self.ui.status(_("nothing changed\n"))
             return None
 
         xp1 = hex(p1)
         if p2 == nullid: xp2 = ''
         else: xp2 = hex(p2)
 
         self.hook("precommit", throw=True, parent1=xp1, parent2=xp2)
 
         if not wlock:
             wlock = self.wlock()
         if not lock:
             lock = self.lock()
         tr = self.transaction()
 
         # check in files
         new = {}
         linkrev = self.changelog.count()
         commit.sort()
         for f in commit:
             self.ui.note(f + "\n")
             try:
                 m1.set(f, util.is_exec(self.wjoin(f), m1.execf(f)))
                 t = self.wread(f)
             except IOError:
                 self.ui.warn(_("trouble committing %s!\n") % f)
                 raise
 
             r = self.file(f)
 
             meta = {}
             cp = self.dirstate.copied(f)
             if cp:
                 meta["copy"] = cp
                 meta["copyrev"] = hex(m1.get(cp, m2.get(cp, nullid)))
                 self.ui.debug(_(" %s: copy %s:%s\n") % (f, cp, meta["copyrev"]))
                 fp1, fp2 = nullid, nullid
             else:
                 entry, fp1, fp2 = self.checkfilemerge(f, t, r, m1, m2)
                 if entry:
                     new[f] = entry
                     continue
 
             new[f] = r.add(t, meta, tr, linkrev, fp1, fp2)
             # remember what we've added so that we can later calculate
             # the files to pull from a set of changesets
             changed.append(f)
 
         # update manifest
         m1.update(new)
         for f in remove:
             if f in m1:
                 del m1[f]
         mn = self.manifest.add(m1, tr, linkrev, c1[0], c2[0],
                                (new, remove))
 
         # add changeset
         new = new.keys()
         new.sort()
 
         user = user or self.ui.username()
         if not text or force_editor:
             edittext = []
             if text:
                 edittext.append(text)
             edittext.append("")
             if p2 != nullid:
                 edittext.append("HG: branch merge")
             edittext.extend(["HG: changed %s" % f for f in changed])
             edittext.extend(["HG: removed %s" % f for f in remove])
             if not changed and not remove:
                 edittext.append("HG: no files changed")
             edittext.append("")
             # run editor in the repository root
             olddir = os.getcwd()
             os.chdir(self.root)
             text = self.ui.edit("\n".join(edittext), user)
             os.chdir(olddir)
 
         lines = [line.rstrip() for line in text.rstrip().splitlines()]
         while lines and not lines[0]:
             del lines[0]
         if not lines:
             return None
         text = '\n'.join(lines)
         n = self.changelog.add(mn, changed + remove, text, tr, p1, p2, user, date)
         self.hook('pretxncommit', throw=True, node=hex(n), parent1=xp1,
                   parent2=xp2)
         tr.close()
 
         self.dirstate.setparents(n)
         self.dirstate.update(new, "n")
         self.dirstate.forget(remove)
 
         self.hook("commit", node=hex(n), parent1=xp1, parent2=xp2)
         return n
 
     def walk(self, node=None, files=[], match=util.always, badmatch=None):
         if node:
             fdict = dict.fromkeys(files)
             for fn in self.manifest.read(self.changelog.read(node)[0]):
                 for ffn in fdict:
                     # match if the file is the exact name or a directory
                     if ffn == fn or fn.startswith("%s/" % ffn):
                         del fdict[ffn]
                         break
                 if match(fn):
                     yield 'm', fn
             for fn in fdict:
                 if badmatch and badmatch(fn):
                     if match(fn):
                         yield 'b', fn
                 else:
                     self.ui.warn(_('%s: No such file in rev %s\n') % (
                         util.pathto(self.getcwd(), fn), short(node)))
         else:
             for src, fn in self.dirstate.walk(files, match, badmatch=badmatch):
                 yield src, fn
 
     def status(self, node1=None, node2=None, files=[], match=util.always,
                 wlock=None, list_ignored=False, list_clean=False):
         """return status of files between two nodes or node and working directory
 
         If node1 is None, use the first dirstate parent instead.
         If node2 is None, compare node1 with working directory.
         """
 
         def fcmp(fn, mf):
             t1 = self.wread(fn)
             return self.file(fn).cmp(mf.get(fn, nullid), t1)
 
         def mfmatches(node):
             change = self.changelog.read(node)
             mf = dict(self.manifest.read(change[0]))
             for fn in mf.keys():
                 if not match(fn):
                     del mf[fn]
             return mf
 
         modified, added, removed, deleted, unknown = [], [], [], [], []
         ignored, clean = [], []
 
         compareworking = False
         if not node1 or (not node2 and node1 == self.dirstate.parents()[0]):
             compareworking = True
 
         if not compareworking:
             # read the manifest from node1 before the manifest from node2,
             # so that we'll hit the manifest cache if we're going through
             # all the revisions in parent->child order.
             mf1 = mfmatches(node1)
 
         # are we comparing the working directory?
         if not node2:
             if not wlock:
                 try:
                     wlock = self.wlock(wait=0)
                 except lock.LockException:
                     wlock = None
             (lookup, modified, added, removed, deleted, unknown,
              ignored, clean) = self.dirstate.status(files, match,
                                                     list_ignored, list_clean)
 
             # are we comparing working dir against its parent?
             if compareworking:
                 if lookup:
                     # do a full compare of any files that might have changed
                     mf2 = mfmatches(self.dirstate.parents()[0])
                     for f in lookup:
                         if fcmp(f, mf2):
                             modified.append(f)
                         else:
                             clean.append(f)
                             if wlock is not None:
                                 self.dirstate.update([f], "n")
             else:
                 # we are comparing working dir against non-parent
                 # generate a pseudo-manifest for the working dir
                 mf2 = mfmatches(self.dirstate.parents()[0])
                 for f in lookup + modified + added:
                     mf2[f] = ""
                 for f in removed:
                     if f in mf2:
                         del mf2[f]
         else:
             # we are comparing two revisions
             mf2 = mfmatches(node2)
 
         if not compareworking:
             # flush lists from dirstate before comparing manifests
             modified, added, clean = [], [], []
 
             # make sure to sort the files so we talk to the disk in a
             # reasonable order
             mf2keys = mf2.keys()
             mf2keys.sort()
             for fn in mf2keys:
                 if mf1.has_key(fn):
                     if mf1[fn] != mf2[fn] and (mf2[fn] != "" or fcmp(fn, mf1)):
                         modified.append(fn)
                     elif list_clean:
                         clean.append(fn)
                     del mf1[fn]
                 else:
                     added.append(fn)
 
             removed = mf1.keys()
 
         # sort and return results:
         for l in modified, added, removed, deleted, unknown, ignored, clean:
             l.sort()
         return (modified, added, removed, deleted, unknown, ignored, clean)
 
     def add(self, list, wlock=None):
         if not wlock:
             wlock = self.wlock()
         for f in list:
             p = self.wjoin(f)
             if not os.path.exists(p):
                 self.ui.warn(_("%s does not exist!\n") % f)
             elif not os.path.isfile(p):
                 self.ui.warn(_("%s not added: only files supported currently\n")
                              % f)
             elif self.dirstate.state(f) in 'an':
                 self.ui.warn(_("%s already tracked!\n") % f)
             else:
                 self.dirstate.update([f], "a")
 
     def forget(self, list, wlock=None):
         if not wlock:
             wlock = self.wlock()
         for f in list:
             if self.dirstate.state(f) not in 'ai':
                 self.ui.warn(_("%s not added!\n") % f)
             else:
                 self.dirstate.forget([f])
 
     def remove(self, list, unlink=False, wlock=None):
         if unlink:
             for f in list:
                 try:
                     util.unlink(self.wjoin(f))
                 except OSError, inst:
                     if inst.errno != errno.ENOENT:
                         raise
         if not wlock:
             wlock = self.wlock()
         for f in list:
             p = self.wjoin(f)
             if os.path.exists(p):
                 self.ui.warn(_("%s still exists!\n") % f)
             elif self.dirstate.state(f) == 'a':
                 self.dirstate.forget([f])
             elif f not in self.dirstate:
                 self.ui.warn(_("%s not tracked!\n") % f)
             else:
                 self.dirstate.update([f], "r")
 
     def undelete(self, list, wlock=None):
         p = self.dirstate.parents()[0]
         mn = self.changelog.read(p)[0]
         m = self.manifest.read(mn)
         if not wlock:
             wlock = self.wlock()
         for f in list:
             if self.dirstate.state(f) not in  "r":
                 self.ui.warn("%s not removed!\n" % f)
             else:
                 t = self.file(f).read(m[f])
                 self.wwrite(f, t)
                 util.set_exec(self.wjoin(f), m.execf(f))
                 self.dirstate.update([f], "n")
 
     def copy(self, source, dest, wlock=None):
         p = self.wjoin(dest)
         if not os.path.exists(p):
             self.ui.warn(_("%s does not exist!\n") % dest)
         elif not os.path.isfile(p):
             self.ui.warn(_("copy failed: %s is not a file\n") % dest)
         else:
             if not wlock:
                 wlock = self.wlock()
             if self.dirstate.state(dest) == '?':
                 self.dirstate.update([dest], "a")
             self.dirstate.copy(source, dest)
 
     def heads(self, start=None):
         heads = self.changelog.heads(start)
         # sort the output in rev descending order
         heads = [(-self.changelog.rev(h), h) for h in heads]
         heads.sort()
         return [n for (r, n) in heads]
 
     # branchlookup returns a dict giving a list of branches for
     # each head.  A branch is defined as the tag of a node or
     # the branch of the node's parents.  If a node has multiple
     # branch tags, tags are eliminated if they are visible from other
     # branch tags.
     #
     # So, for this graph:  a->b->c->d->e
     #                       \         /
     #                        aa -----/
     # a has tag 2.6.12
     # d has tag 2.6.13
     # e would have branch tags for 2.6.12 and 2.6.13.  Because the node
     # for 2.6.12 can be reached from the node 2.6.13, that is eliminated
     # from the list.
     #
     # It is possible that more than one head will have the same branch tag.
     # callers need to check the result for multiple heads under the same
     # branch tag if that is a problem for them (ie checkout of a specific
     # branch).
     #
     # passing in a specific branch will limit the depth of the search
     # through the parents.  It won't limit the branches returned in the
     # result though.
     def branchlookup(self, heads=None, branch=None):
         if not heads:
             heads = self.heads()
         headt = [ h for h in heads ]
         chlog = self.changelog
         branches = {}
         merges = []
         seenmerge = {}
 
         # traverse the tree once for each head, recording in the branches
         # dict which tags are visible from this head.  The branches
         # dict also records which tags are visible from each tag
         # while we traverse.
         while headt or merges:
             if merges:
                 n, found = merges.pop()
                 visit = [n]
             else:
                 h = headt.pop()
                 visit = [h]
                 found = [h]
                 seen = {}
             while visit:
                 n = visit.pop()
                 if n in seen:
                     continue
                 pp = chlog.parents(n)
                 tags = self.nodetags(n)
                 if tags:
                     for x in tags:
                         if x == 'tip':
                             continue
                         for f in found:
                             branches.setdefault(f, {})[n] = 1
                         branches.setdefault(n, {})[n] = 1
                         break
                     if n not in found:
                         found.append(n)
                     if branch in tags:
                         continue
                 seen[n] = 1
                 if pp[1] != nullid and n not in seenmerge:
                     merges.append((pp[1], [x for x in found]))
                     seenmerge[n] = 1
                 if pp[0] != nullid:
                     visit.append(pp[0])
         # traverse the branches dict, eliminating branch tags from each
         # head that are visible from another branch tag for that head.
         out = {}
         viscache = {}
         for h in heads:
             def visible(node):
                 if node in viscache:
                     return viscache[node]
                 ret = {}
                 visit = [node]
                 while visit:
                     x = visit.pop()
                     if x in viscache:
                         ret.update(viscache[x])
                     elif x not in ret:
                         ret[x] = 1
                         if x in branches:
                             visit[len(visit):] = branches[x].keys()
                 viscache[node] = ret
                 return ret
             if h not in branches:
                 continue
             # O(n^2), but somewhat limited.  This only searches the
             # tags visible from a specific head, not all the tags in the
             # whole repo.
             for b in branches[h]:
                 vis = False
                 for bb in branches[h].keys():
                     if b != bb:
                         if b in visible(bb):
                             vis = True
                             break
                 if not vis:
                     l = out.setdefault(h, [])
                     l[len(l):] = self.nodetags(b)
         return out
 
     def branches(self, nodes):
         if not nodes:
             nodes = [self.changelog.tip()]
         b = []
         for n in nodes:
             t = n
             while 1:
                 p = self.changelog.parents(n)
                 if p[1] != nullid or p[0] == nullid:
                     b.append((t, n, p[0], p[1]))
                     break
                 n = p[0]
         return b
 
     def between(self, pairs):
         r = []
 
         for top, bottom in pairs:
             n, l, i = top, [], 0
             f = 1
 
             while n != bottom:
                 p = self.changelog.parents(n)[0]
                 if i == f:
                     l.append(n)
                     f = f * 2
                 n = p
                 i += 1
 
             r.append(l)
 
         return r
 
     def findincoming(self, remote, base=None, heads=None, force=False):
         """Return list of roots of the subsets of missing nodes from remote
 
         If base dict is specified, assume that these nodes and their parents
         exist on the remote side and that no child of a node of base exists
         in both remote and self.
         Furthermore base will be updated to include the nodes that exists
         in self and remote but no children exists in self and remote.
         If a list of heads is specified, return only nodes which are heads
         or ancestors of these heads.
 
         All the ancestors of base are in self and in remote.
         All the descendants of the list returned are missing in self.
         (and so we know that the rest of the nodes are missing in remote, see
         outgoing)
         """
         m = self.changelog.nodemap
         search = []
         fetch = {}
         seen = {}
         seenbranch = {}
         if base == None:
             base = {}
 
         if not heads:
             heads = remote.heads()
 
         if self.changelog.tip() == nullid:
             base[nullid] = 1
             if heads != [nullid]:
                 return [nullid]
             return []
 
         # assume we're closer to the tip than the root
         # and start by examining the heads
         self.ui.status(_("searching for changes\n"))
 
         unknown = []
         for h in heads:
             if h not in m:
                 unknown.append(h)
             else:
                 base[h] = 1
 
         if not unknown:
             return []
 
         req = dict.fromkeys(unknown)
         reqcnt = 0
 
         # search through remote branches
         # a 'branch' here is a linear segment of history, with four parts:
         # head, root, first parent, second parent
         # (a branch always has two parents (or none) by definition)
         unknown = remote.branches(unknown)
         while unknown:
             r = []
             while unknown:
                 n = unknown.pop(0)
                 if n[0] in seen:
                     continue
 
                 self.ui.debug(_("examining %s:%s\n")
                               % (short(n[0]), short(n[1])))
                 if n[0] == nullid: # found the end of the branch
                     pass
                 elif n in seenbranch:
                     self.ui.debug(_("branch already found\n"))
                     continue
                 elif n[1] and n[1] in m: # do we know the base?
                     self.ui.debug(_("found incomplete branch %s:%s\n")
                                   % (short(n[0]), short(n[1])))
                     search.append(n) # schedule branch range for scanning
                     seenbranch[n] = 1
                 else:
                     if n[1] not in seen and n[1] not in fetch:
                         if n[2] in m and n[3] in m:
                             self.ui.debug(_("found new changeset %s\n") %
                                           short(n[1]))
                             fetch[n[1]] = 1 # earliest unknown
                         for p in n[2:4]:
                             if p in m:
                                 base[p] = 1 # latest known
 
                     for p in n[2:4]:
                         if p not in req and p not in m:
                             r.append(p)
                             req[p] = 1
                 seen[n[0]] = 1
 
             if r:
                 reqcnt += 1
                 self.ui.debug(_("request %d: %s\n") %
                             (reqcnt, " ".join(map(short, r))))
                 for p in range(0, len(r), 10):
                     for b in remote.branches(r[p:p+10]):
                         self.ui.debug(_("received %s:%s\n") %
                                       (short(b[0]), short(b[1])))
                         unknown.append(b)
 
         # do binary search on the branches we found
         while search:
             n = search.pop(0)
             reqcnt += 1
             l = remote.between([(n[0], n[1])])[0]
             l.append(n[1])
             p = n[0]
             f = 1
             for i in l:
                 self.ui.debug(_("narrowing %d:%d %s\n") % (f, len(l), short(i)))
                 if i in m:
                     if f <= 2:
                         self.ui.debug(_("found new branch changeset %s\n") %
                                           short(p))
                         fetch[p] = 1
                         base[i] = 1
                     else:
                         self.ui.debug(_("narrowed branch search to %s:%s\n")
                                       % (short(p), short(i)))
                         search.append((p, i))
                     break
                 p, f = i, f * 2
 
         # sanity check our fetch list
         for f in fetch.keys():
             if f in m:
                 raise repo.RepoError(_("already have changeset ") + short(f[:4]))
 
         if base.keys() == [nullid]:
             if force:
                 self.ui.warn(_("warning: repository is unrelated\n"))
             else:
                 raise util.Abort(_("repository is unrelated"))
 
         self.ui.debug(_("found new changesets starting at ") +
                      " ".join([short(f) for f in fetch]) + "\n")
 
         self.ui.debug(_("%d total queries\n") % reqcnt)
 
         return fetch.keys()
 
     def findoutgoing(self, remote, base=None, heads=None, force=False):
         """Return list of nodes that are roots of subsets not in remote
 
         If base dict is specified, assume that these nodes and their parents
         exist on the remote side.
         If a list of heads is specified, return only nodes which are heads
         or ancestors of these heads, and return a second element which
         contains all remote heads which get new children.
         """
         if base == None:
             base = {}
             self.findincoming(remote, base, heads, force=force)
 
         self.ui.debug(_("common changesets up to ")
                       + " ".join(map(short, base.keys())) + "\n")
 
         remain = dict.fromkeys(self.changelog.nodemap)
 
         # prune everything remote has from the tree
         del remain[nullid]
         remove = base.keys()
         while remove:
             n = remove.pop(0)
             if n in remain:
                 del remain[n]
                 for p in self.changelog.parents(n):
                     remove.append(p)
 
         # find every node whose parents have been pruned
         subset = []
         # find every remote head that will get new children
         updated_heads = {}
         for n in remain:
             p1, p2 = self.changelog.parents(n)
             if p1 not in remain and p2 not in remain:
                 subset.append(n)
             if heads:
                 if p1 in heads:
                     updated_heads[p1] = True
                 if p2 in heads:
                     updated_heads[p2] = True
 
         # this is the set of all roots we have to push
         if heads:
             return subset, updated_heads.keys()
         else:
             return subset
 
     def pull(self, remote, heads=None, force=False, lock=None):
         mylock = False
         if not lock:
             lock = self.lock()
             mylock = True
 
         try:
             fetch = self.findincoming(remote, force=force)
             if fetch == [nullid]:
                 self.ui.status(_("requesting all changes\n"))
 
             if not fetch:
                 self.ui.status(_("no changes found\n"))
                 return 0
 
             if heads is None:
                 cg = remote.changegroup(fetch, 'pull')
             else:
                 cg = remote.changegroupsubset(fetch, heads, 'pull')
             return self.addchangegroup(cg, 'pull', remote.url())
         finally:
             if mylock:
                 lock.release()
 
     def push(self, remote, force=False, revs=None):
         # there are two ways to push to remote repo:
         #
         # addchangegroup assumes local user can lock remote
         # repo (local filesystem, old ssh servers).
         #
         # unbundle assumes local user cannot lock remote repo (new ssh
         # servers, http servers).
 
         if remote.capable('unbundle'):
             return self.push_unbundle(remote, force, revs)
         return self.push_addchangegroup(remote, force, revs)
 
     def prepush(self, remote, force, revs):
         base = {}
         remote_heads = remote.heads()
         inc = self.findincoming(remote, base, remote_heads, force=force)
         if not force and inc:
             self.ui.warn(_("abort: unsynced remote changes!\n"))
             self.ui.status(_("(did you forget to sync?"
                              " use push -f to force)\n"))
             return None, 1
 
         update, updated_heads = self.findoutgoing(remote, base, remote_heads)
         if revs is not None:
             msng_cl, bases, heads = self.changelog.nodesbetween(update, revs)
         else:
             bases, heads = update, self.changelog.heads()
 
         if not bases:
             self.ui.status(_("no changes found\n"))
             return None, 1
         elif not force:
             # FIXME we don't properly detect creation of new heads
             # in the push -r case, assume the user knows what he's doing
             if not revs and len(remote_heads) < len(heads) \
                    and remote_heads != [nullid]:
                 self.ui.warn(_("abort: push creates new remote branches!\n"))
                 self.ui.status(_("(did you forget to merge?"
                                  " use push -f to force)\n"))
                 return None, 1
 
         if revs is None:
             cg = self.changegroup(update, 'push')
         else:
             cg = self.changegroupsubset(update, revs, 'push')
         return cg, remote_heads
 
     def push_addchangegroup(self, remote, force, revs):
         lock = remote.lock()
 
         ret = self.prepush(remote, force, revs)
         if ret[0] is not None:
             cg, remote_heads = ret
             return remote.addchangegroup(cg, 'push', self.url())
         return ret[1]
 
     def push_unbundle(self, remote, force, revs):
         # local repo finds heads on server, finds out what revs it
         # must push.  once revs transferred, if server finds it has
         # different heads (someone else won commit/push race), server
         # aborts.
 
         ret = self.prepush(remote, force, revs)
         if ret[0] is not None:
             cg, remote_heads = ret
             if force: remote_heads = ['force']
             return remote.unbundle(cg, remote_heads, 'push')
         return ret[1]
 
     def changegroupsubset(self, bases, heads, source):
         """This function generates a changegroup consisting of all the nodes
         that are descendents of any of the bases, and ancestors of any of
         the heads.
 
         It is fairly complex as determining which filenodes and which
         manifest nodes need to be included for the changeset to be complete
         is non-trivial.
 
         Another wrinkle is doing the reverse, figuring out which changeset in
         the changegroup a particular filenode or manifestnode belongs to."""
 
         self.hook('preoutgoing', throw=True, source=source)
 
         # Set up some initial variables
         # Make it easy to refer to self.changelog
         cl = self.changelog
         # msng is short for missing - compute the list of changesets in this
         # changegroup.
         msng_cl_lst, bases, heads = cl.nodesbetween(bases, heads)
         # Some bases may turn out to be superfluous, and some heads may be
         # too.  nodesbetween will return the minimal set of bases and heads
         # necessary to re-create the changegroup.
 
         # Known heads are the list of heads that it is assumed the recipient
         # of this changegroup will know about.
         knownheads = {}
         # We assume that all parents of bases are known heads.
         for n in bases:
             for p in cl.parents(n):
                 if p != nullid:
                     knownheads[p] = 1
         knownheads = knownheads.keys()
         if knownheads:
             # Now that we know what heads are known, we can compute which
             # changesets are known.  The recipient must know about all
             # changesets required to reach the known heads from the null
             # changeset.
             has_cl_set, junk, junk = cl.nodesbetween(None, knownheads)
             junk = None
             # Transform the list into an ersatz set.
             has_cl_set = dict.fromkeys(has_cl_set)
         else:
             # If there were no known heads, the recipient cannot be assumed to
             # know about any changesets.
             has_cl_set = {}
 
         # Make it easy to refer to self.manifest
         mnfst = self.manifest
         # We don't know which manifests are missing yet
         msng_mnfst_set = {}
         # Nor do we know which filenodes are missing.
         msng_filenode_set = {}
 
         junk = mnfst.index[mnfst.count() - 1] # Get around a bug in lazyindex
         junk = None
 
         # A changeset always belongs to itself, so the changenode lookup
         # function for a changenode is identity.
         def identity(x):
             return x
 
         # A function generating function.  Sets up an environment for the
         # inner function.
         def cmp_by_rev_func(revlog):
             # Compare two nodes by their revision number in the environment's
             # revision history.  Since the revision number both represents the
             # most efficient order to read the nodes in, and represents a
             # topological sorting of the nodes, this function is often useful.
             def cmp_by_rev(a, b):
                 return cmp(revlog.rev(a), revlog.rev(b))
             return cmp_by_rev
 
         # If we determine that a particular file or manifest node must be a
         # node that the recipient of the changegroup will already have, we can
         # also assume the recipient will have all the parents.  This function
         # prunes them from the set of missing nodes.
         def prune_parents(revlog, hasset, msngset):
             haslst = hasset.keys()
             haslst.sort(cmp_by_rev_func(revlog))
             for node in haslst:
                 parentlst = [p for p in revlog.parents(node) if p != nullid]
                 while parentlst:
                     n = parentlst.pop()
                     if n not in hasset:
                         hasset[n] = 1
                         p = [p for p in revlog.parents(n) if p != nullid]
                         parentlst.extend(p)
             for n in hasset:
                 msngset.pop(n, None)
 
         # This is a function generating function used to set up an environment
         # for the inner function to execute in.
         def manifest_and_file_collector(changedfileset):
             # This is an information gathering function that gathers
             # information from each changeset node that goes out as part of
             # the changegroup.  The information gathered is a list of which
             # manifest nodes are potentially required (the recipient may
             # already have them) and total list of all files which were
             # changed in any changeset in the changegroup.
             #
             # We also remember the first changenode we saw any manifest
             # referenced by so we can later determine which changenode 'owns'
             # the manifest.
             def collect_manifests_and_files(clnode):
                 c = cl.read(clnode)
                 for f in c[3]:
                     # This is to make sure we only have one instance of each
                     # filename string for each filename.
                     changedfileset.setdefault(f, f)
                 msng_mnfst_set.setdefault(c[0], clnode)
             return collect_manifests_and_files
 
         # Figure out which manifest nodes (of the ones we think might be part
         # of the changegroup) the recipient must know about and remove them
         # from the changegroup.
         def prune_manifests():
             has_mnfst_set = {}
             for n in msng_mnfst_set:
                 # If a 'missing' manifest thinks it belongs to a changenode
                 # the recipient is assumed to have, obviously the recipient
                 # must have that manifest.
                 linknode = cl.node(mnfst.linkrev(n))
                 if linknode in has_cl_set:
                     has_mnfst_set[n] = 1
             prune_parents(mnfst, has_mnfst_set, msng_mnfst_set)
 
         # Use the information collected in collect_manifests_and_files to say
         # which changenode any manifestnode belongs to.
         def lookup_manifest_link(mnfstnode):
             return msng_mnfst_set[mnfstnode]
 
         # A function generating function that sets up the initial environment
         # the inner function.
         def filenode_collector(changedfiles):
             next_rev = [0]
             # This gathers information from each manifestnode included in the
             # changegroup about which filenodes the manifest node references
             # so we can include those in the changegroup too.
             #
             # It also remembers which changenode each filenode belongs to.  It
             # does this by assuming the a filenode belongs to the changenode
             # the first manifest that references it belongs to.
             def collect_msng_filenodes(mnfstnode):
                 r = mnfst.rev(mnfstnode)
                 if r == next_rev[0]:
                     # If the last rev we looked at was the one just previous,
                     # we only need to see a diff.
                     delta = mdiff.patchtext(mnfst.delta(mnfstnode))
                     # For each line in the delta
                     for dline in delta.splitlines():
                         # get the filename and filenode for that line
                         f, fnode = dline.split('\0')
                         fnode = bin(fnode[:40])
                         f = changedfiles.get(f, None)
                         # And if the file is in the list of files we care
                         # about.
                         if f is not None:
                             # Get the changenode this manifest belongs to
                             clnode = msng_mnfst_set[mnfstnode]
                             # Create the set of filenodes for the file if
                             # there isn't one already.
                             ndset = msng_filenode_set.setdefault(f, {})
                             # And set the filenode's changelog node to the
                             # manifest's if it hasn't been set already.
                             ndset.setdefault(fnode, clnode)
                 else:
                     # Otherwise we need a full manifest.
                     m = mnfst.read(mnfstnode)
                     # For every file in we care about.
                     for f in changedfiles:
                         fnode = m.get(f, None)
                         # If it's in the manifest
                         if fnode is not None:
                             # See comments above.
                             clnode = msng_mnfst_set[mnfstnode]
                             ndset = msng_filenode_set.setdefault(f, {})
                             ndset.setdefault(fnode, clnode)
                 # Remember the revision we hope to see next.
                 next_rev[0] = r + 1
             return collect_msng_filenodes
 
         # We have a list of filenodes we think we need for a file, lets remove
         # all those we now the recipient must have.
         def prune_filenodes(f, filerevlog):
             msngset = msng_filenode_set[f]
             hasset = {}
             # If a 'missing' filenode thinks it belongs to a changenode we
             # assume the recipient must have, then the recipient must have
             # that filenode.
             for n in msngset:
                 clnode = cl.node(filerevlog.linkrev(n))
                 if clnode in has_cl_set:
                     hasset[n] = 1
             prune_parents(filerevlog, hasset, msngset)
 
         # A function generator function that sets up the a context for the
         # inner function.
         def lookup_filenode_link_func(fname):
             msngset = msng_filenode_set[fname]
             # Lookup the changenode the filenode belongs to.
             def lookup_filenode_link(fnode):
                 return msngset[fnode]
             return lookup_filenode_link
 
         # Now that we have all theses utility functions to help out and
         # logically divide up the task, generate the group.
         def gengroup():
             # The set of changed files starts empty.
             changedfiles = {}
             # Create a changenode group generator that will call our functions
             # back to lookup the owning changenode and collect information.
             group = cl.group(msng_cl_lst, identity,
                              manifest_and_file_collector(changedfiles))
             for chnk in group:
                 yield chnk
 
             # The list of manifests has been collected by the generator
             # calling our functions back.
             prune_manifests()
             msng_mnfst_lst = msng_mnfst_set.keys()
             # Sort the manifestnodes by revision number.
             msng_mnfst_lst.sort(cmp_by_rev_func(mnfst))
             # Create a generator for the manifestnodes that calls our lookup
             # and data collection functions back.
             group = mnfst.group(msng_mnfst_lst, lookup_manifest_link,
                                 filenode_collector(changedfiles))
             for chnk in group:
                 yield chnk
 
             # These are no longer needed, dereference and toss the memory for
             # them.
             msng_mnfst_lst = None
             msng_mnfst_set.clear()
 
             changedfiles = changedfiles.keys()
             changedfiles.sort()
             # Go through all our files in order sorted by name.
             for fname in changedfiles:
                 filerevlog = self.file(fname)
                 # Toss out the filenodes that the recipient isn't really
                 # missing.
                 if msng_filenode_set.has_key(fname):
                     prune_filenodes(fname, filerevlog)
                     msng_filenode_lst = msng_filenode_set[fname].keys()
                 else:
                     msng_filenode_lst = []
                 # If any filenodes are left, generate the group for them,
                 # otherwise don't bother.
                 if len(msng_filenode_lst) > 0:
                     yield changegroup.genchunk(fname)
                     # Sort the filenodes by their revision #
                     msng_filenode_lst.sort(cmp_by_rev_func(filerevlog))
                     # Create a group generator and only pass in a changenode
                     # lookup function as we need to collect no information
                     # from filenodes.
                     group = filerevlog.group(msng_filenode_lst,
                                              lookup_filenode_link_func(fname))
                     for chnk in group:
                         yield chnk
                 if msng_filenode_set.has_key(fname):
                     # Don't need this anymore, toss it to free memory.
                     del msng_filenode_set[fname]
             # Signal that no more groups are left.
             yield changegroup.closechunk()
 
             if msng_cl_lst:
                 self.hook('outgoing', node=hex(msng_cl_lst[0]), source=source)
 
         return util.chunkbuffer(gengroup())
 
     def changegroup(self, basenodes, source):
         """Generate a changegroup of all nodes that we have that a recipient
         doesn't.
 
         This is much easier than the previous function as we can assume that
         the recipient has any changenode we aren't sending them."""
 
         self.hook('preoutgoing', throw=True, source=source)
 
         cl = self.changelog
         nodes = cl.nodesbetween(basenodes, None)[0]
         revset = dict.fromkeys([cl.rev(n) for n in nodes])
 
         def identity(x):
             return x
 
         def gennodelst(revlog):
             for r in xrange(0, revlog.count()):
                 n = revlog.node(r)
                 if revlog.linkrev(n) in revset:
                     yield n
 
         def changed_file_collector(changedfileset):
             def collect_changed_files(clnode):
                 c = cl.read(clnode)
                 for fname in c[3]:
                     changedfileset[fname] = 1
             return collect_changed_files
 
         def lookuprevlink_func(revlog):
             def lookuprevlink(n):
                 return cl.node(revlog.linkrev(n))
             return lookuprevlink
 
         def gengroup():
             # construct a list of all changed files
             changedfiles = {}
 
             for chnk in cl.group(nodes, identity,
                                  changed_file_collector(changedfiles)):
                 yield chnk
             changedfiles = changedfiles.keys()
             changedfiles.sort()
 
             mnfst = self.manifest
             nodeiter = gennodelst(mnfst)
             for chnk in mnfst.group(nodeiter, lookuprevlink_func(mnfst)):
                 yield chnk
 
             for fname in changedfiles:
                 filerevlog = self.file(fname)
                 nodeiter = gennodelst(filerevlog)
                 nodeiter = list(nodeiter)
                 if nodeiter:
                     yield changegroup.genchunk(fname)
                     lookup = lookuprevlink_func(filerevlog)
                     for chnk in filerevlog.group(nodeiter, lookup):
                         yield chnk
 
             yield changegroup.closechunk()
 
             if nodes:
                 self.hook('outgoing', node=hex(nodes[0]), source=source)
 
         return util.chunkbuffer(gengroup())
 
     def addchangegroup(self, source, srctype, url):
         """add changegroup to repo.
         returns number of heads modified or added + 1."""
 
         def csmap(x):
             self.ui.debug(_("add changeset %s\n") % short(x))
             return cl.count()
 
         def revmap(x):
             return cl.rev(x)
 
         if not source:
             return 0
 
         self.hook('prechangegroup', throw=True, source=srctype, url=url)
 
         changesets = files = revisions = 0
 
         tr = self.transaction()
 
         # write changelog data to temp files so concurrent readers will not see
         # inconsistent view
         cl = None
         try:
             cl = appendfile.appendchangelog(self.opener, self.changelog.version)
 
             oldheads = len(cl.heads())
 
             # pull off the changeset group
             self.ui.status(_("adding changesets\n"))
             cor = cl.count() - 1
             chunkiter = changegroup.chunkiter(source)
             if cl.addgroup(chunkiter, csmap, tr, 1) is None:
                 raise util.Abort(_("received changelog group is empty"))
             cnr = cl.count() - 1
             changesets = cnr - cor
 
             # pull off the manifest group
             self.ui.status(_("adding manifests\n"))
             chunkiter = changegroup.chunkiter(source)
             # no need to check for empty manifest group here:
             # if the result of the merge of 1 and 2 is the same in 3 and 4,
             # no new manifest will be created and the manifest group will
             # be empty during the pull
             self.manifest.addgroup(chunkiter, revmap, tr)
 
             # process the files
             self.ui.status(_("adding file changes\n"))
             while 1:
                 f = changegroup.getchunk(source)
                 if not f:
                     break
                 self.ui.debug(_("adding %s revisions\n") % f)
                 fl = self.file(f)
                 o = fl.count()
                 chunkiter = changegroup.chunkiter(source)
                 if fl.addgroup(chunkiter, revmap, tr) is None:
                     raise util.Abort(_("received file revlog group is empty"))
                 revisions += fl.count() - o
                 files += 1
 
             cl.writedata()
         finally:
             if cl:
                 cl.cleanup()
 
         # make changelog see real files again
         self.changelog = changelog.changelog(self.opener, self.changelog.version)
         self.changelog.checkinlinesize(tr)
 
         newheads = len(self.changelog.heads())
         heads = ""
         if oldheads and newheads != oldheads:
             heads = _(" (%+d heads)") % (newheads - oldheads)
 
         self.ui.status(_("added %d changesets"
                          " with %d changes to %d files%s\n")
                          % (changesets, revisions, files, heads))
 
         if changesets > 0:
             self.hook('pretxnchangegroup', throw=True,
                       node=hex(self.changelog.node(cor+1)), source=srctype,
                       url=url)
 
         tr.close()
 
         if changesets > 0:
             self.hook("changegroup", node=hex(self.changelog.node(cor+1)),
                       source=srctype, url=url)
 
             for i in range(cor + 1, cnr + 1):
                 self.hook("incoming", node=hex(self.changelog.node(i)),
                           source=srctype, url=url)
 
         return newheads - oldheads + 1
 
 
     def stream_in(self, remote):
         fp = remote.stream_out()
         resp = int(fp.readline())
         if resp != 0:
             raise util.Abort(_('operation forbidden by server'))
         self.ui.status(_('streaming all changes\n'))
         total_files, total_bytes = map(int, fp.readline().split(' ', 1))
         self.ui.status(_('%d files to transfer, %s of data\n') %
                        (total_files, util.bytecount(total_bytes)))
         start = time.time()
         for i in xrange(total_files):
             name, size = fp.readline().split('\0', 1)
             size = int(size)
             self.ui.debug('adding %s (%s)\n' % (name, util.bytecount(size)))
             ofp = self.opener(name, 'w')
             for chunk in util.filechunkiter(fp, limit=size):
                 ofp.write(chunk)
             ofp.close()
         elapsed = time.time() - start
         self.ui.status(_('transferred %s in %.1f seconds (%s/sec)\n') %
                        (util.bytecount(total_bytes), elapsed,
                         util.bytecount(total_bytes / elapsed)))
         self.reload()
         return len(self.heads()) + 1
 
     def clone(self, remote, heads=[], stream=False):
         '''clone remote repository.
 
         keyword arguments:
         heads: list of revs to clone (forces use of pull)
         stream: use streaming clone if possible'''
 
         # now, all clients that can request uncompressed clones can
         # read repo formats supported by all servers that can serve
         # them.
 
         # if revlog format changes, client will have to check version
         # and format flags on "stream" capability, and use
         # uncompressed only if compatible.
 
         if stream and not heads and remote.capable('stream'):
             return self.stream_in(remote)
         return self.pull(remote, heads)
 
 # used to avoid circular references so destructors work
 def aftertrans(base):
     p = base
     def a():
         util.rename(os.path.join(p, "journal"), os.path.join(p, "undo"))
         util.rename(os.path.join(p, "journal.dirstate"),
                     os.path.join(p, "undo.dirstate"))
     return a
 
 def instance(ui, path, create):
     return localrepository(ui, util.drop_scheme('file', path), create)
     
 def islocal(path):
     return True

mercurial/sshrepo.py

@@ -1,208 +1,214 b''
 # sshrepo.py - ssh repository proxy class for mercurial
 #
 # Copyright 2005, 2006 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import *
 from remoterepo import *
 from i18n import gettext as _
 from demandload import *
 demandload(globals(), "hg os re stat util")
 
 class sshrepository(remoterepository):
     def __init__(self, ui, path, create=0):
         self._url = path
         self.ui = ui
 
         m = re.match(r'ssh://(([^@]+)@)?([^:/]+)(:(\d+))?(/(.*))?', path)
         if not m:
             raise hg.RepoError(_("couldn't parse location %s") % path)
 
         self.user = m.group(2)
         self.host = m.group(3)
         self.port = m.group(5)
         self.path = m.group(7) or "."
 
         args = self.user and ("%s@%s" % (self.user, self.host)) or self.host
         args = self.port and ("%s -p %s") % (args, self.port) or args
 
         sshcmd = self.ui.config("ui", "ssh", "ssh")
         remotecmd = self.ui.config("ui", "remotecmd", "hg")
 
         if create:
             try:
                 self.validate_repo(ui, sshcmd, args, remotecmd)
-                return # the repo is good, nothing more to do
             except hg.RepoError:
                 pass
+            else:
+                raise hg.RepoError(_("repository %s already exists") % path)
 
             cmd = '%s %s "%s init %s"'
             cmd = cmd % (sshcmd, args, remotecmd, self.path)
 
             ui.note('running %s\n' % cmd)
             res = os.system(cmd)
             if res != 0:
                 raise hg.RepoError(_("could not create remote repo"))
 
         self.validate_repo(ui, sshcmd, args, remotecmd)
 
     def url(self):
         return self._url
 
     def validate_repo(self, ui, sshcmd, args, remotecmd):
+        # cleanup up previous run
+        self.cleanup()
+
         cmd = '%s %s "%s -R %s serve --stdio"'
         cmd = cmd % (sshcmd, args, remotecmd, self.path)
 
         ui.note('running %s\n' % cmd)
         self.pipeo, self.pipei, self.pipee = os.popen3(cmd, 'b')
 
         # skip any noise generated by remote shell
         self.do_cmd("hello")
         r = self.do_cmd("between", pairs=("%s-%s" % ("0"*40, "0"*40)))
         lines = ["", "dummy"]
         max_noise = 500
         while lines[-1] and max_noise:
             l = r.readline()
             self.readerr()
             if lines[-1] == "1\n" and l == "\n":
                 break
             if l:
                 ui.debug(_("remote: "), l)
             lines.append(l)
             max_noise -= 1
         else:
             raise hg.RepoError(_("no response from remote hg"))
 
         self.capabilities = ()
         lines.reverse()
         for l in lines:
             if l.startswith("capabilities:"):
                 self.capabilities = l[:-1].split(":")[1].split()
                 break
 
     def readerr(self):
         while 1:
             size = util.fstat(self.pipee).st_size
             if size == 0: break
             l = self.pipee.readline()
             if not l: break
             self.ui.status(_("remote: "), l)
 
-    def __del__(self):
+    def cleanup(self):
         try:
             self.pipeo.close()
             self.pipei.close()
             # read the error descriptor until EOF
             for l in self.pipee:
                 self.ui.status(_("remote: "), l)
             self.pipee.close()
         except:
             pass
 
+    __del__ = cleanup
+
     def do_cmd(self, cmd, **args):
         self.ui.debug(_("sending %s command\n") % cmd)
         self.pipeo.write("%s\n" % cmd)
         for k, v in args.items():
             self.pipeo.write("%s %d\n" % (k, len(v)))
             self.pipeo.write(v)
         self.pipeo.flush()
 
         return self.pipei
 
     def call(self, cmd, **args):
         r = self.do_cmd(cmd, **args)
         l = r.readline()
         self.readerr()
         try:
             l = int(l)
         except:
             raise hg.RepoError(_("unexpected response '%s'") % l)
         return r.read(l)
 
     def lock(self):
         self.call("lock")
         return remotelock(self)
 
     def unlock(self):
         self.call("unlock")
 
     def heads(self):
         d = self.call("heads")
         try:
             return map(bin, d[:-1].split(" "))
         except:
             raise hg.RepoError(_("unexpected response '%s'") % (d[:400] + "..."))
 
     def branches(self, nodes):
         n = " ".join(map(hex, nodes))
         d = self.call("branches", nodes=n)
         try:
             br = [ tuple(map(bin, b.split(" "))) for b in d.splitlines() ]
             return br
         except:
             raise hg.RepoError(_("unexpected response '%s'") % (d[:400] + "..."))
 
     def between(self, pairs):
         n = "\n".join(["-".join(map(hex, p)) for p in pairs])
         d = self.call("between", pairs=n)
         try:
             p = [ l and map(bin, l.split(" ")) or [] for l in d.splitlines() ]
             return p
         except:
             raise hg.RepoError(_("unexpected response '%s'") % (d[:400] + "..."))
 
     def changegroup(self, nodes, kind):
         n = " ".join(map(hex, nodes))
         return self.do_cmd("changegroup", roots=n)
 
     def unbundle(self, cg, heads, source):
         d = self.call("unbundle", heads=' '.join(map(hex, heads)))
         if d:
             raise hg.RepoError(_("push refused: %s") % d)
 
         while 1:
             d = cg.read(4096)
             if not d: break
             self.pipeo.write(str(len(d)) + '\n')
             self.pipeo.write(d)
             self.readerr()
 
         self.pipeo.write('0\n')
         self.pipeo.flush()
 
         self.readerr()
         d = self.pipei.readline()
         if d != '\n':
             return 1
 
         l = int(self.pipei.readline())
         r = self.pipei.read(l)
         if not r:
             return 1
         return int(r)
 
     def addchangegroup(self, cg, source, url):
         d = self.call("addchangegroup")
         if d:
             raise hg.RepoError(_("push refused: %s") % d)
         while 1:
             d = cg.read(4096)
             if not d: break
             self.pipeo.write(d)
             self.readerr()
 
         self.pipeo.flush()
 
         self.readerr()
         l = int(self.pipei.readline())
         r = self.pipei.read(l)
         if not r:
             return 1
         return int(r)
 
     def stream_out(self):
         return self.do_cmd('stream_out')
 
 instance = sshrepository

mercurial/ui.py

@@ -1,323 +1,323 b''
 # ui.py - user interface bits for mercurial
 #
 # Copyright 2005, 2006 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from i18n import gettext as _
 from demandload import *
 demandload(globals(), "errno getpass os re socket sys tempfile")
 demandload(globals(), "ConfigParser mdiff templater traceback util")
 
 class ui(object):
     def __init__(self, verbose=False, debug=False, quiet=False,
                  interactive=True, traceback=False, parentui=None):
         self.overlay = {}
         if parentui is None:
             # this is the parent of all ui children
             self.parentui = None
             self.readhooks = []
             self.trusted_users = {}
             self.trusted_groups = {}
             self.cdata = ConfigParser.SafeConfigParser()
             self.readconfig(util.rcpath())
 
             self.quiet = self.configbool("ui", "quiet")
             self.verbose = self.configbool("ui", "verbose")
             self.debugflag = self.configbool("ui", "debug")
             self.interactive = self.configbool("ui", "interactive", True)
             self.traceback = traceback
 
             self.updateopts(verbose, debug, quiet, interactive)
             self.diffcache = None
             self.header = []
             self.prev_header = []
             self.revlogopts = self.configrevlog()
         else:
             # parentui may point to an ui object which is already a child
             self.parentui = parentui.parentui or parentui
             self.readhooks = parentui.readhooks[:]
             self.trusted_users = parentui.trusted_users.copy()
             self.trusted_groups = parentui.trusted_groups.copy()
             parent_cdata = self.parentui.cdata
             self.cdata = ConfigParser.SafeConfigParser(parent_cdata.defaults())
             # make interpolation work
             for section in parent_cdata.sections():
                 self.cdata.add_section(section)
                 for name, value in parent_cdata.items(section, raw=True):
                     self.cdata.set(section, name, value)
 
     def __getattr__(self, key):
         return getattr(self.parentui, key)
 
     def updateopts(self, verbose=False, debug=False, quiet=False,
                    interactive=True, traceback=False, config=[]):
         self.quiet = (self.quiet or quiet) and not verbose and not debug
-        self.verbose = (self.verbose or verbose) or debug
+        self.verbose = ((self.verbose or verbose) or debug) and not self.quiet
         self.debugflag = (self.debugflag or debug)
         self.interactive = (self.interactive and interactive)
         self.traceback = self.traceback or traceback
         for cfg in config:
             try:
                 name, value = cfg.split('=', 1)
                 section, name = name.split('.', 1)
                 if not self.cdata.has_section(section):
                     self.cdata.add_section(section)
                 if not section or not name:
                     raise IndexError
                 self.cdata.set(section, name, value)
             except (IndexError, ValueError):
                 raise util.Abort(_('malformed --config option: %s') % cfg)
 
     def readconfig(self, fn, root=None):
         if isinstance(fn, basestring):
             fn = [fn]
         for f in fn:
             try:
                 fp = open(f)
             except IOError:
                 continue
             if ((self.trusted_users or self.trusted_groups) and
                 '*' not in self.trusted_users and
                 '*' not in self.trusted_groups):
                 st = util.fstat(fp)
                 user = util.username(st.st_uid)
                 group = util.groupname(st.st_gid)
                 if (user not in self.trusted_users and
                     group not in self.trusted_groups):
                     self.warn(_('not reading file %s from untrusted '
                                 'user %s, group %s\n') % (f, user, group))
                     continue
             try:
                 self.cdata.readfp(fp, f)
             except ConfigParser.ParsingError, inst:
                 raise util.Abort(_("Failed to parse %s\n%s") % (f, inst))
         # translate paths relative to root (or home) into absolute paths
         if root is None:
             root = os.path.expanduser('~')
         for name, path in self.configitems("paths"):
             if path and "://" not in path and not os.path.isabs(path):
                 self.cdata.set("paths", name, os.path.join(root, path))
         user = util.username()
         if user is not None:
             self.trusted_users[user] = 1
             for user in self.configlist('trusted', 'users'):
                 self.trusted_users[user] = 1
             for group in self.configlist('trusted', 'groups'):
                 self.trusted_groups[group] = 1
         for hook in self.readhooks:
             hook(self)
 
     def addreadhook(self, hook):
         self.readhooks.append(hook)
 
     def setconfig(self, section, name, val):
         self.overlay[(section, name)] = val
 
     def config(self, section, name, default=None):
         if self.overlay.has_key((section, name)):
             return self.overlay[(section, name)]
         if self.cdata.has_option(section, name):
             try:
                 return self.cdata.get(section, name)
             except ConfigParser.InterpolationError, inst:
                 raise util.Abort(_("Error in configuration:\n%s") % inst)
         if self.parentui is None:
             return default
         else:
             return self.parentui.config(section, name, default)
 
     def configlist(self, section, name, default=None):
         """Return a list of comma/space separated strings"""
         result = self.config(section, name)
         if result is None:
             result = default or []
         if isinstance(result, basestring):
             result = result.replace(",", " ").split()
         return result
 
     def configbool(self, section, name, default=False):
         if self.overlay.has_key((section, name)):
             return self.overlay[(section, name)]
         if self.cdata.has_option(section, name):
             try:
                 return self.cdata.getboolean(section, name)
             except ConfigParser.InterpolationError, inst:
                 raise util.Abort(_("Error in configuration:\n%s") % inst)
         if self.parentui is None:
             return default
         else:
             return self.parentui.configbool(section, name, default)
 
     def has_config(self, section):
         '''tell whether section exists in config.'''
         return self.cdata.has_section(section)
 
     def configitems(self, section):
         items = {}
         if self.parentui is not None:
             items = dict(self.parentui.configitems(section))
         if self.cdata.has_section(section):
             try:
                 items.update(dict(self.cdata.items(section)))
             except ConfigParser.InterpolationError, inst:
                 raise util.Abort(_("Error in configuration:\n%s") % inst)
         x = items.items()
         x.sort()
         return x
 
     def walkconfig(self, seen=None):
         if seen is None:
             seen = {}
         for (section, name), value in self.overlay.iteritems():
             yield section, name, value
             seen[section, name] = 1
         for section in self.cdata.sections():
             for name, value in self.cdata.items(section):
                 if (section, name) in seen: continue
                 yield section, name, value.replace('\n', '\\n')
                 seen[section, name] = 1
         if self.parentui is not None:
             for parent in self.parentui.walkconfig(seen):
                 yield parent
 
     def extensions(self):
         result = self.configitems("extensions")
         for i, (key, value) in enumerate(result):
             if value:
                 result[i] = (key, os.path.expanduser(value))
         return result
 
     def hgignorefiles(self):
         result = []
         for key, value in self.configitems("ui"):
             if key == 'ignore' or key.startswith('ignore.'):
                 result.append(os.path.expanduser(value))
         return result
 
     def configrevlog(self):
         result = {}
         for key, value in self.configitems("revlog"):
             result[key.lower()] = value
         return result
 
     def username(self):
         """Return default username to be used in commits.
 
         Searched in this order: $HGUSER, [ui] section of hgrcs, $EMAIL
         and stop searching if one of these is set.
         Abort if found username is an empty string to force specifying
         the commit user elsewhere, e.g. with line option or repo hgrc.
         If not found, use ($LOGNAME or $USER or $LNAME or
         $USERNAME) +"@full.hostname".
         """
         user = os.environ.get("HGUSER")
         if user is None:
             user = self.config("ui", "username")
         if user is None:
             user = os.environ.get("EMAIL")
         if user is None:
             try:
                 user = '%s@%s' % (util.getuser(), socket.getfqdn())
             except KeyError:
                 raise util.Abort(_("Please specify a username."))
         return user
 
     def shortuser(self, user):
         """Return a short representation of a user name or email address."""
         if not self.verbose: user = util.shortuser(user)
         return user
 
     def expandpath(self, loc, default=None):
         """Return repository location relative to cwd or from [paths]"""
         if "://" in loc or os.path.isdir(loc):
             return loc
 
         path = self.config("paths", loc)
         if not path and default is not None:
             path = self.config("paths", default)
         return path or loc
 
     def write(self, *args):
         if self.header:
             if self.header != self.prev_header:
                 self.prev_header = self.header
                 self.write(*self.header)
             self.header = []
         for a in args:
             sys.stdout.write(str(a))
 
     def write_header(self, *args):
         for a in args:
             self.header.append(str(a))
 
     def write_err(self, *args):
         try:
             if not sys.stdout.closed: sys.stdout.flush()
             for a in args:
                 sys.stderr.write(str(a))
         except IOError, inst:
             if inst.errno != errno.EPIPE:
                 raise
 
     def flush(self):
         try: sys.stdout.flush()
         except: pass
         try: sys.stderr.flush()
         except: pass
 
     def readline(self):
         return sys.stdin.readline()[:-1]
     def prompt(self, msg, pat=None, default="y"):
         if not self.interactive: return default
         while 1:
             self.write(msg, " ")
             r = self.readline()
             if not pat or re.match(pat, r):
                 return r
             else:
                 self.write(_("unrecognized response\n"))
     def getpass(self, prompt=None, default=None):
         if not self.interactive: return default
         return getpass.getpass(prompt or _('password: '))
     def status(self, *msg):
         if not self.quiet: self.write(*msg)
     def warn(self, *msg):
         self.write_err(*msg)
     def note(self, *msg):
         if self.verbose: self.write(*msg)
     def debug(self, *msg):
         if self.debugflag: self.write(*msg)
     def edit(self, text, user):
         (fd, name) = tempfile.mkstemp(prefix="hg-editor-", suffix=".txt",
                                       text=True)
         try:
             f = os.fdopen(fd, "w")
             f.write(text)
             f.close()
 
             editor = (os.environ.get("HGEDITOR") or
                     self.config("ui", "editor") or
                     os.environ.get("EDITOR", "vi"))
 
             util.system("%s \"%s\"" % (editor, name),
                         environ={'HGUSER': user},
                         onerr=util.Abort, errprefix=_("edit failed"))
 
             f = open(name)
             t = f.read()
             f.close()
             t = re.sub("(?m)^HG:.*\n", "", t)
         finally:
             os.unlink(name)
 
         return t
 
     def print_exc(self):
         '''print exception traceback if traceback printing enabled.
         only to call in exception handler. returns true if traceback
         printed.'''
         if self.traceback:
             traceback.print_exc()
         return self.traceback

templates/map-gitweb

@@ -1,50 +1,50 b''
 default = 'summary'
 header = header-gitweb.tmpl
 footer = footer-gitweb.tmpl
 search = search-gitweb.tmpl
 changelog = changelog-gitweb.tmpl
 summary = summary-gitweb.tmpl
 error = error-gitweb.tmpl
 naventry = '<a href="?cmd=changelog;rev=#rev#;style=gitweb">#label|escape#</a> '
 navshortentry = '<a href="?cmd=shortlog;rev=#rev#;style=gitweb">#label|escape#</a> '
 filedifflink = '<a href="?cmd=filediff;node=#node#;file=#file|urlescape#;style=gitweb">#file|escape#</a> '
-filenodelink = '<tr class="light"><td><a class="list" href="">#file|escape#</a></td><td></td><td class="link"><a href="?cmd=file;filenode=#filenode#;file=#file|urlescape#;style=gitweb">file</a> | <!-- FIXME: <a href="?fd=#filenode|short#;file=#file|urlescape#;style=gitweb">diff</a> | --> <a href="?cmd=filelog;filenode=#filenode|short#;file=#file|urlescape#;style=gitweb">revisions</a></td></tr>'
+filenodelink = '<tr class="light"><td><a class="list" href="">#file|escape#</a></td><td></td><td class="link"><a href="?cmd=file;filenode=#filenode#;file=#file|urlescape#;style=gitweb">file</a> | <a href="?fa=#filenode|short#;file=#file|urlescape#;style=gitweb">annotate</a> | <!-- FIXME: <a href="?fd=#filenode|short#;file=#file|urlescape#;style=gitweb">diff</a> | --> <a href="?cmd=filelog;filenode=#filenode|short#;file=#file|urlescape#;style=gitweb">revisions</a></td></tr>'
 fileellipses = '...'
 changelogentry = changelogentry-gitweb.tmpl
 searchentry = changelogentry-gitweb.tmpl
 changeset = changeset-gitweb.tmpl
 manifest = manifest-gitweb.tmpl
 manifestdirentry = '<tr class="parity#parity#"><td style="font-family:monospace">drwxr-xr-x</td><td><a href="?mf=#manifest|short#;path=#path|urlescape#;style=gitweb">#basename|escape#/</a></td><td class="link"><a href="?mf=#manifest|short#;path=#path|urlescape#;style=gitweb">manifest</a></td></tr>'
 manifestfileentry = '<tr class="parity#parity#"><td style="font-family:monospace">#permissions|permissions#</td><td class="list"><a class="list" href="?f=#filenode|short#;file=#file|urlescape#;style=gitweb">#basename|escape#</a></td><td class="link"><a href="?f=#filenode|short#;file=#file|urlescape#;style=gitweb">file</a> | <a href="?fl=#filenode|short#;file=#file|urlescape#;style=gitweb">revisions</a> | <a href="?fa=#filenode|short#;file=#file|urlescape#;style=gitweb">annotate</a></td></tr>'
 filerevision = filerevision-gitweb.tmpl
 fileannotate = fileannotate-gitweb.tmpl
 filelog = filelog-gitweb.tmpl
 fileline = '<div style="font-family:monospace" class="parity#parity#"><pre><span class="linenr">   #linenumber#</span> #line|escape#</pre></div>'
 annotateline = '<tr style="font-family:monospace" class="parity#parity#"><td class="linenr" style="text-align: right;"><a href="?cs=#node|short#;style=gitweb">#author|obfuscate#@#rev#</a></td><td><pre>#line|escape#</pre></td></tr>'
 difflineplus = '<div style="color:#008800;">#line|escape#</div>'
 difflineminus = '<div style="color:#cc0000;">#line|escape#</div>'
 difflineat = '<div style="color:#990099;">#line|escape#</div>'
 diffline = '<div>#line|escape#</div>'
 changelogparent = '<tr><th class="parent">parent #rev#:</th><td class="parent"><a href="?cmd=changeset;node=#node#;style=gitweb">#node|short#</a></td></tr>'
 changesetparent = '<tr><td>parent</td><td style="font-family:monospace"><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb">#node|short#</a></td></tr>'
 filerevparent = '<tr><td class="metatag">parent:</td><td><a href="?cmd=file;file=#file|urlescape#;filenode=#node#;style=gitweb">#node|short#</a></td></tr>'
 filerename = '<tr><td class="metatag">parent:</td><td><a href="?f=#node|short#;file=#file|urlescape#;style=gitweb">#file|escape#@#node|short#</a></td></tr>'
 filelogrename = '| <a href="?f=#node|short#;file=#file|urlescape#;style=gitweb">base</a>'
 fileannotateparent = '<tr><td class="metatag">parent:</td><td><a href="?cmd=annotate;file=#file|urlescape#;filenode=#node#;style=gitweb">#node|short#</a></td></tr>'
 changelogchild = '<tr><th class="child">child #rev#:</th><td class="child"><a href="?cmd=changeset;node=#node#;style=gitweb">#node|short#</a></td></tr>'
 changesetchild = '<tr><td>child</td><td style="font-family:monospace"><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb">#node|short#</a></td></tr>'
 filerevchild = '<tr><td class="metatag">child:</td><td><a href="?cmd=file;file=#file|urlescape#;filenode=#node#;style=gitweb">#node|short#</a></td></tr>'
 fileannotatechild = '<tr><td class="metatag">child:</td><td><a href="?cmd=annotate;file=#file|urlescape#;filenode=#node#;style=gitweb">#node|short#</a></td></tr>'
 tags = tags-gitweb.tmpl
 tagentry = '<tr class="parity#parity#"><td class="age"><i>#date|age# ago</i></td><td><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb"><b>#tag|escape#</b></a></td><td class="link"><a href="?cmd=changeset;node=#node|short#;style=gitweb">changeset</a> | <a href="?cmd=changelog;rev=#node|short#;style=gitweb">changelog</a> |  <a href="?mf=#tagmanifest|short#;path=/;style=gitweb">manifest</a></td></tr>'
 diffblock = '<pre>#lines#</pre>'
 changelogtag = '<tr><th class="tag">tag:</th><td class="tag">#tag|escape#</td></tr>'
 changesettag = '<tr><td>tag</td><td>#tag|escape#</td></tr>'
 filediffparent = '<tr><th class="parent">parent #rev#:</th><td class="parent"><a href="?cmd=changeset;node=#node#;style=gitweb">#node|short#</a></td></tr>'
 filelogparent = '<tr><td align="right">parent #rev#:&nbsp;</td><td><a href="?cmd=file;file=#file|urlescape#;filenode=#node#;style=gitweb">#node|short#</a></td></tr>'
 filediffchild = '<tr><th class="child">child #rev#:</th><td class="child"><a href="?cmd=changeset;node=#node#;style=gitweb">#node|short#</a></td></tr>'
 filelogchild = '<tr><td align="right">child #rev#:&nbsp;</td><td><a href="?cmd=file;file=#file|urlescape#;filenode=#node#;style=gitweb">#node|short#</a></td></tr>'
 shortlog = shortlog-gitweb.tmpl
 shortlogentry = '<tr class="parity#parity#"><td class="age"><i>#date|age# ago</i></td><td><i>#author#</i></td><td><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb"><b>#desc|strip|firstline|escape#</b></a></td><td class="link"><a href="?cmd=changeset;node=#node|short#;style=gitweb">changeset</a> |  <a href="?cmd=manifest;manifest=#manifest|short#;path=/;style=gitweb">manifest</a></td></tr>'
-filelogentry = '<tr class="parity#parity#"><td class="age"><i>#date|age# ago</i></td><td><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb"><b>#desc|strip|firstline|escape#</b></a></td><td class="link"><!-- FIXME: <a href="?fd=#node|short#;file=#file|urlescape#;style=gitweb">diff</a> | --> <a href="?fa=#filenode|short#;file=#file|urlescape#;style=gitweb">annotate</a> #rename%filelogrename#</td></tr>'
+filelogentry = '<tr class="parity#parity#"><td class="age"><i>#date|age# ago</i></td><td><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb"><b>#desc|strip|firstline|escape#</b></a></td><td class="link"><a href="?f=#node|short#;file=#file|urlescape#;style=gitweb">file</a> | <!-- FIXME: <a href="?fd=#node|short#;file=#file|urlescape#;style=gitweb">diff</a> | --> <a href="?fa=#filenode|short#;file=#file|urlescape#;style=gitweb">annotate</a> #rename%filelogrename#</td></tr>'
 archiveentry = ' | <a href="?ca=#node|short#;type=#type|urlescape#">#type|escape#</a> '

tests/test-init

@@ -1,52 +1,61 b''
 #!/bin/sh
 
 # This test tries to exercise the ssh functionality with a dummy script
 
 cat <<'EOF' > dummyssh
 #!/bin/sh
 # this attempts to deal with relative pathnames
 cd `dirname $0`
 
 # check for proper args
 if [ $1 != "user@dummy" ] ; then
 	exit -1
 fi
 
 # check that we're in the right directory
 if [ ! -x dummyssh ] ; then
 	exit -1
 fi
 
 echo Got arguments 1:$1 2:$2 3:$3 4:$4 5:$5 >> dummylog
 $2
 EOF
 chmod +x dummyssh
 
 echo "# creating 'local'"
 hg init local
 echo this > local/foo
 hg ci --cwd local -A -m "init" -d "1000000 0"
 
+echo "#test failure"
+hg init local
+
 echo "# init+push to remote2"
 hg init -e ./dummyssh ssh://user@dummy/remote2
 hg incoming -R remote2 local
 hg push -R local -e ./dummyssh ssh://user@dummy/remote2
 
 echo "# clone to remote1"
 hg clone -e ./dummyssh local ssh://user@dummy/remote1
 
+echo "# init to existing repo"
+hg init -e ./dummyssh ssh://user@dummy/remote1
+
+echo "# clone to existing repo"
+hg clone -e ./dummyssh local ssh://user@dummy/remote1
+
 echo "# output of dummyssh"
 cat dummylog
 
 echo "# comparing repositories"
 hg tip -q -R local
 hg tip -q -R remote1
 hg tip -q -R remote2
 
 echo "# check names for repositories (clashes with URL schemes, special chars)"
 for i in bundle file hg http https old-http ssh static-http " " "with space"; do
   echo "# hg init \"$i\""
   hg init "$i"
   test -d "$i" -a -d "$i/.hg" -a -d "$i/.hg/data" && echo "ok" || echo "failed"
 done
 

tests/test-init.out

@@ -1,56 +1,64 b''
 # creating 'local'
 adding foo
+#test failure
+abort: repository local already exists!
 # init+push to remote2
+remote: abort: repository remote2 not found!
 changeset:   0:c4e059d443be
 tag:         tip
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     init
 
 pushing to ssh://user@dummy/remote2
 searching for changes
 remote: adding changesets
 remote: adding manifests
 remote: adding file changes
 remote: added 1 changesets with 1 changes to 1 files
 # clone to remote1
+remote: abort: repository remote1 not found!
 searching for changes
-remote: abort: repository remote1 not found!
 remote: adding changesets
 remote: adding manifests
 remote: adding file changes
 remote: added 1 changesets with 1 changes to 1 files
+# init to existing repo
+abort: repository ssh://user@dummy/remote1 already exists!
+# clone to existing repo
+abort: repository ssh://user@dummy/remote1 already exists!
 # output of dummyssh
 Got arguments 1:user@dummy 2:hg -R remote2 serve --stdio 3: 4: 5:
 Got arguments 1:user@dummy 2:hg init remote2 3: 4: 5:
 Got arguments 1:user@dummy 2:hg -R remote2 serve --stdio 3: 4: 5:
 Got arguments 1:user@dummy 2:hg -R remote2 serve --stdio 3: 4: 5:
 Got arguments 1:user@dummy 2:hg -R remote1 serve --stdio 3: 4: 5:
+Got arguments 1:user@dummy 2:hg init remote1 3: 4: 5:
 Got arguments 1:user@dummy 2:hg -R remote1 serve --stdio 3: 4: 5:
-Got arguments 1:user@dummy 2:hg init remote1 3: 4: 5:
+Got arguments 1:user@dummy 2:hg -R remote1 serve --stdio 3: 4: 5:
 Got arguments 1:user@dummy 2:hg -R remote1 serve --stdio 3: 4: 5:
 # comparing repositories
 0:c4e059d443be
 0:c4e059d443be
 0:c4e059d443be
 # check names for repositories (clashes with URL schemes, special chars)
 # hg init "bundle"
 ok
 # hg init "file"
 ok
 # hg init "hg"
 ok
 # hg init "http"
 ok
 # hg init "https"
 ok
 # hg init "old-http"
 ok
 # hg init "ssh"
 ok
 # hg init "static-http"
 ok
 # hg init " "
 ok
 # hg init "with space"
 ok