help: use absolute_import

mercurial/help.py

@@ -1,580 +1,599 b''
 # help.py - help data for mercurial
 #
 # Copyright 2006 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-from i18n import gettext, _
-import itertools, os, textwrap
-import error
-import extensions, revset, fileset, templatekw, templatefilters, filemerge
-import templater
-import encoding, util, minirst
-import cmdutil
-import hgweb.webcommands as webcommands
+from __future__ import absolute_import
+
+import itertools
+import os
+import textwrap
+
+from .i18n import (
+    _,
+    gettext,
+)
+from . import (
+    cmdutil,
+    encoding,
+    error,
+    extensions,
+    filemerge,
+    fileset,
+    minirst,
+    revset,
+    templatefilters,
+    templatekw,
+    templater,
+    util,
+)
+from .hgweb import (
+    webcommands,
+)
 
 _exclkeywords = [
     "(DEPRECATED)",
     "(EXPERIMENTAL)",
     # i18n: "(DEPRECATED)" is a keyword, must be translated consistently
     _("(DEPRECATED)"),
     # i18n: "(EXPERIMENTAL)" is a keyword, must be translated consistently
     _("(EXPERIMENTAL)"),
     ]
 
 def listexts(header, exts, indent=1, showdeprecated=False):
     '''return a text listing of the given extensions'''
     rst = []
     if exts:
         for name, desc in sorted(exts.iteritems()):
             if not showdeprecated and any(w in desc for w in _exclkeywords):
                 continue
             rst.append('%s:%s: %s\n' % (' ' * indent, name, desc))
     if rst:
         rst.insert(0, '\n%s\n\n' % header)
     return rst
 
 def extshelp(ui):
     rst = loaddoc('extensions')(ui).splitlines(True)
     rst.extend(listexts(
         _('enabled extensions:'), extensions.enabled(), showdeprecated=True))
     rst.extend(listexts(_('disabled extensions:'), extensions.disabled()))
     doc = ''.join(rst)
     return doc
 
 def optrst(header, options, verbose):
     data = []
     multioccur = False
     for option in options:
         if len(option) == 5:
             shortopt, longopt, default, desc, optlabel = option
         else:
             shortopt, longopt, default, desc = option
             optlabel = _("VALUE") # default label
 
         if not verbose and any(w in desc for w in _exclkeywords):
             continue
 
         so = ''
         if shortopt:
             so = '-' + shortopt
         lo = '--' + longopt
         if default:
             desc += _(" (default: %s)") % default
 
         if isinstance(default, list):
             lo += " %s [+]" % optlabel
             multioccur = True
         elif (default is not None) and not isinstance(default, bool):
             lo += " %s" % optlabel
 
         data.append((so, lo, desc))
 
     if multioccur:
         header += (_(" ([+] can be repeated)"))
 
     rst = ['\n%s:\n\n' % header]
     rst.extend(minirst.maketable(data, 1))
 
     return ''.join(rst)
 
 def indicateomitted(rst, omitted, notomitted=None):
     rst.append('\n\n.. container:: omitted\n\n    %s\n\n' % omitted)
     if notomitted:
         rst.append('\n\n.. container:: notomitted\n\n    %s\n\n' % notomitted)
 
 def filtercmd(ui, cmd, kw, doc):
     if not ui.debugflag and cmd.startswith("debug") and kw != "debug":
         return True
     if not ui.verbose and doc and any(w in doc for w in _exclkeywords):
         return True
     return False
 
 def topicmatch(ui, kw):
     """Return help topics matching kw.
 
     Returns {'section': [(name, summary), ...], ...} where section is
     one of topics, commands, extensions, or extensioncommands.
     """
     kw = encoding.lower(kw)
     def lowercontains(container):
         return kw in encoding.lower(container)  # translated in helptable
     results = {'topics': [],
                'commands': [],
                'extensions': [],
                'extensioncommands': [],
                }
     for names, header, doc in helptable:
         # Old extensions may use a str as doc.
         if (sum(map(lowercontains, names))
             or lowercontains(header)
             or (callable(doc) and lowercontains(doc(ui)))):
             results['topics'].append((names[0], header))
-    import commands # avoid cycle
+    from . import commands # avoid cycle
     for cmd, entry in commands.table.iteritems():
         if len(entry) == 3:
             summary = entry[2]
         else:
             summary = ''
         # translate docs *before* searching there
         docs = _(getattr(entry[0], '__doc__', None)) or ''
         if kw in cmd or lowercontains(summary) or lowercontains(docs):
             doclines = docs.splitlines()
             if doclines:
                 summary = doclines[0]
             cmdname = cmd.partition('|')[0].lstrip('^')
             if filtercmd(ui, cmdname, kw, docs):
                 continue
             results['commands'].append((cmdname, summary))
     for name, docs in itertools.chain(
         extensions.enabled(False).iteritems(),
         extensions.disabled().iteritems()):
         # extensions.load ignores the UI argument
         mod = extensions.load(None, name, '')
         name = name.rpartition('.')[-1]
         if lowercontains(name) or lowercontains(docs):
             # extension docs are already translated
             results['extensions'].append((name, docs.splitlines()[0]))
         for cmd, entry in getattr(mod, 'cmdtable', {}).iteritems():
             if kw in cmd or (len(entry) > 2 and lowercontains(entry[2])):
                 cmdname = cmd.partition('|')[0].lstrip('^')
                 if entry[0].__doc__:
                     cmddoc = gettext(entry[0].__doc__).splitlines()[0]
                 else:
                     cmddoc = _('(no help text available)')
                 if filtercmd(ui, cmdname, kw, cmddoc):
                     continue
                 results['extensioncommands'].append((cmdname, cmddoc))
     return results
 
 def loaddoc(topic, subdir=None):
     """Return a delayed loader for help/topic.txt."""
 
     def loader(ui):
         docdir = os.path.join(util.datapath, 'help')
         if subdir:
             docdir = os.path.join(docdir, subdir)
         path = os.path.join(docdir, topic + ".txt")
         doc = gettext(util.readfile(path))
         for rewriter in helphooks.get(topic, []):
             doc = rewriter(ui, topic, doc)
         return doc
 
     return loader
 
 internalstable = sorted([
     (['bundles'], _('container for exchange of repository data'),
      loaddoc('bundles', subdir='internals')),
     (['changegroups'], _('representation of revlog data'),
      loaddoc('changegroups', subdir='internals')),
 ])
 
 def internalshelp(ui):
     """Generate the index for the "internals" topic."""
     lines = []
     for names, header, doc in internalstable:
         lines.append(' :%s: %s\n' % (names[0], header))
 
     return ''.join(lines)
 
 helptable = sorted([
     (["config", "hgrc"], _("Configuration Files"), loaddoc('config')),
     (["dates"], _("Date Formats"), loaddoc('dates')),
     (["patterns"], _("File Name Patterns"), loaddoc('patterns')),
     (['environment', 'env'], _('Environment Variables'),
      loaddoc('environment')),
     (['revisions', 'revs'], _('Specifying Single Revisions'),
      loaddoc('revisions')),
     (['multirevs', 'mrevs'], _('Specifying Multiple Revisions'),
      loaddoc('multirevs')),
     (['revsets', 'revset'], _("Specifying Revision Sets"), loaddoc('revsets')),
     (['filesets', 'fileset'], _("Specifying File Sets"), loaddoc('filesets')),
     (['diffs'], _('Diff Formats'), loaddoc('diffs')),
     (['merge-tools', 'mergetools'], _('Merge Tools'), loaddoc('merge-tools')),
     (['templating', 'templates', 'template', 'style'], _('Template Usage'),
      loaddoc('templates')),
     (['urls'], _('URL Paths'), loaddoc('urls')),
     (["extensions"], _("Using Additional Features"), extshelp),
     (["subrepos", "subrepo"], _("Subrepositories"), loaddoc('subrepos')),
     (["hgweb"], _("Configuring hgweb"), loaddoc('hgweb')),
     (["glossary"], _("Glossary"), loaddoc('glossary')),
     (["hgignore", "ignore"], _("Syntax for Mercurial Ignore Files"),
      loaddoc('hgignore')),
     (["phases"], _("Working with Phases"), loaddoc('phases')),
     (['scripting'], _('Using Mercurial from scripts and automation'),
      loaddoc('scripting')),
     (['internals'], _("Technical implementation topics"),
      internalshelp),
 ])
 
 # Maps topics with sub-topics to a list of their sub-topics.
 subtopics = {
     'internals': internalstable,
 }
 
 # Map topics to lists of callable taking the current topic help and
 # returning the updated version
 helphooks = {}
 
 def addtopichook(topic, rewriter):
     helphooks.setdefault(topic, []).append(rewriter)
 
 def makeitemsdoc(ui, topic, doc, marker, items, dedent=False):
     """Extract docstring from the items key to function mapping, build a
     single documentation block and use it to overwrite the marker in doc.
     """
     entries = []
     for name in sorted(items):
         text = (items[name].__doc__ or '').rstrip()
         if (not text
             or not ui.verbose and any(w in text for w in _exclkeywords)):
             continue
         text = gettext(text)
         if dedent:
             text = textwrap.dedent(text)
         lines = text.splitlines()
         doclines = [(lines[0])]
         for l in lines[1:]:
             # Stop once we find some Python doctest
             if l.strip().startswith('>>>'):
                 break
             if dedent:
                 doclines.append(l.rstrip())
             else:
                 doclines.append('  ' + l.strip())
         entries.append('\n'.join(doclines))
     entries = '\n\n'.join(entries)
     return doc.replace(marker, entries)
 
 def addtopicsymbols(topic, marker, symbols, dedent=False):
     def add(ui, topic, doc):
         return makeitemsdoc(ui, topic, doc, marker, symbols, dedent=dedent)
     addtopichook(topic, add)
 
 addtopicsymbols('filesets', '.. predicatesmarker', fileset.symbols)
 addtopicsymbols('merge-tools', '.. internaltoolsmarker',
                 filemerge.internalsdoc)
 addtopicsymbols('revsets', '.. predicatesmarker', revset.symbols)
 addtopicsymbols('templates', '.. keywordsmarker', templatekw.keywords)
 addtopicsymbols('templates', '.. filtersmarker', templatefilters.filters)
 addtopicsymbols('templates', '.. functionsmarker', templater.funcs)
 addtopicsymbols('hgweb', '.. webcommandsmarker', webcommands.commands,
                 dedent=True)
 
 def help_(ui, name, unknowncmd=False, full=True, subtopic=None, **opts):
     '''
     Generate the help for 'name' as unformatted restructured text. If
     'name' is None, describe the commands available.
     '''
 
-    import commands # avoid cycle
+    from . import commands # avoid cycle
 
     def helpcmd(name, subtopic=None):
         try:
             aliases, entry = cmdutil.findcmd(name, commands.table,
                                              strict=unknowncmd)
         except error.AmbiguousCommand as inst:
             # py3k fix: except vars can't be used outside the scope of the
             # except block, nor can be used inside a lambda. python issue4617
             prefix = inst.args[0]
             select = lambda c: c.lstrip('^').startswith(prefix)
             rst = helplist(select)
             return rst
 
         rst = []
 
         # check if it's an invalid alias and display its error if it is
         if getattr(entry[0], 'badalias', None):
             rst.append(entry[0].badalias + '\n')
             if entry[0].unknowncmd:
                 try:
                     rst.extend(helpextcmd(entry[0].cmdname))
                 except error.UnknownCommand:
                     pass
             return rst
 
         # synopsis
         if len(entry) > 2:
             if entry[2].startswith('hg'):
                 rst.append("%s\n" % entry[2])
             else:
                 rst.append('hg %s %s\n' % (aliases[0], entry[2]))
         else:
             rst.append('hg %s\n' % aliases[0])
         # aliases
         if full and not ui.quiet and len(aliases) > 1:
             rst.append(_("\naliases: %s\n") % ', '.join(aliases[1:]))
         rst.append('\n')
 
         # description
         doc = gettext(entry[0].__doc__)
         if not doc:
             doc = _("(no help text available)")
         if util.safehasattr(entry[0], 'definition'):  # aliased command
             if entry[0].definition.startswith('!'):  # shell alias
                 doc = _('shell alias for::\n\n    %s') % entry[0].definition[1:]
             else:
                 doc = _('alias for: hg %s\n\n%s') % (entry[0].definition, doc)
         doc = doc.splitlines(True)
         if ui.quiet or not full:
             rst.append(doc[0])
         else:
             rst.extend(doc)
         rst.append('\n')
 
         # check if this command shadows a non-trivial (multi-line)
         # extension help text
         try:
             mod = extensions.find(name)
             doc = gettext(mod.__doc__) or ''
             if '\n' in doc.strip():
                 msg = _('(use "hg help -e %s" to show help for '
                         'the %s extension)') % (name, name)
                 rst.append('\n%s\n' % msg)
         except KeyError:
             pass
 
         # options
         if not ui.quiet and entry[1]:
             rst.append(optrst(_("options"), entry[1], ui.verbose))
 
         if ui.verbose:
             rst.append(optrst(_("global options"),
                               commands.globalopts, ui.verbose))
 
         if not ui.verbose:
             if not full:
                 rst.append(_('\n(use "hg %s -h" to show more help)\n')
                            % name)
             elif not ui.quiet:
                 rst.append(_('\n(some details hidden, use --verbose '
                                'to show complete help)'))
 
         return rst
 
 
     def helplist(select=None, **opts):
         # list of commands
         if name == "shortlist":
             header = _('basic commands:\n\n')
         elif name == "debug":
             header = _('debug commands (internal and unsupported):\n\n')
         else:
             header = _('list of commands:\n\n')
 
         h = {}
         cmds = {}
         for c, e in commands.table.iteritems():
             f = c.partition("|")[0]
             if select and not select(f):
                 continue
             if (not select and name != 'shortlist' and
                 e[0].__module__ != commands.__name__):
                 continue
             if name == "shortlist" and not f.startswith("^"):
                 continue
             f = f.lstrip("^")
             doc = e[0].__doc__
             if filtercmd(ui, f, name, doc):
                 continue
             doc = gettext(doc)
             if not doc:
                 doc = _("(no help text available)")
             h[f] = doc.splitlines()[0].rstrip()
             cmds[f] = c.lstrip("^")
 
         rst = []
         if not h:
             if not ui.quiet:
                 rst.append(_('no commands defined\n'))
             return rst
 
         if not ui.quiet:
             rst.append(header)
         fns = sorted(h)
         for f in fns:
             if ui.verbose:
                 commacmds = cmds[f].replace("|",", ")
                 rst.append(" :%s: %s\n" % (commacmds, h[f]))
             else:
                 rst.append(' :%s: %s\n' % (f, h[f]))
 
         ex = opts.get
         anyopts = (ex('keyword') or not (ex('command') or ex('extension')))
         if not name and anyopts:
             exts = listexts(_('enabled extensions:'), extensions.enabled())
             if exts:
                 rst.append('\n')
                 rst.extend(exts)
 
             rst.append(_("\nadditional help topics:\n\n"))
             topics = []
             for names, header, doc in helptable:
                 topics.append((names[0], header))
             for t, desc in topics:
                 rst.append(" :%s: %s\n" % (t, desc))
 
         if ui.quiet:
             pass
         elif ui.verbose:
             rst.append('\n%s\n' % optrst(_("global options"),
                                          commands.globalopts, ui.verbose))
             if name == 'shortlist':
                 rst.append(_('\n(use "hg help" for the full list '
                              'of commands)\n'))
         else:
             if name == 'shortlist':
                 rst.append(_('\n(use "hg help" for the full list of commands '
                              'or "hg -v" for details)\n'))
             elif name and not full:
                 rst.append(_('\n(use "hg help %s" to show the full help '
                              'text)\n') % name)
             elif name and cmds and name in cmds.keys():
                 rst.append(_('\n(use "hg help -v -e %s" to show built-in '
                              'aliases and global options)\n') % name)
             else:
                 rst.append(_('\n(use "hg help -v%s" to show built-in aliases '
                              'and global options)\n')
                            % (name and " " + name or ""))
         return rst
 
     def helptopic(name, subtopic=None):
         # Look for sub-topic entry first.
         header, doc = None, None
         if subtopic and name in subtopics:
             for names, header, doc in subtopics[name]:
                 if subtopic in names:
                     break
 
         if not header:
             for names, header, doc in helptable:
                 if name in names:
                     break
             else:
                 raise error.UnknownCommand(name)
 
         rst = [minirst.section(header)]
 
         # description
         if not doc:
             rst.append("    %s\n" % _("(no help text available)"))
         if callable(doc):
             rst += ["    %s\n" % l for l in doc(ui).splitlines()]
 
         if not ui.verbose:
             omitted = _('(some details hidden, use --verbose'
                          ' to show complete help)')
             indicateomitted(rst, omitted)
 
         try:
             cmdutil.findcmd(name, commands.table)
             rst.append(_('\nuse "hg help -c %s" to see help for '
                        'the %s command\n') % (name, name))
         except error.UnknownCommand:
             pass
         return rst
 
     def helpext(name, subtopic=None):
         try:
             mod = extensions.find(name)
             doc = gettext(mod.__doc__) or _('no help text available')
         except KeyError:
             mod = None
             doc = extensions.disabledext(name)
             if not doc:
                 raise error.UnknownCommand(name)
 
         if '\n' not in doc:
             head, tail = doc, ""
         else:
             head, tail = doc.split('\n', 1)
         rst = [_('%s extension - %s\n\n') % (name.rpartition('.')[-1], head)]
         if tail:
             rst.extend(tail.splitlines(True))
             rst.append('\n')
 
         if not ui.verbose:
             omitted = _('(some details hidden, use --verbose'
                          ' to show complete help)')
             indicateomitted(rst, omitted)
 
         if mod:
             try:
                 ct = mod.cmdtable
             except AttributeError:
                 ct = {}
             modcmds = set([c.partition('|')[0] for c in ct])
             rst.extend(helplist(modcmds.__contains__))
         else:
             rst.append(_('(use "hg help extensions" for information on enabling'
                        ' extensions)\n'))
         return rst
 
     def helpextcmd(name, subtopic=None):
         cmd, ext, mod = extensions.disabledcmd(ui, name,
                                                ui.configbool('ui', 'strict'))
         doc = gettext(mod.__doc__).splitlines()[0]
 
         rst = listexts(_("'%s' is provided by the following "
                               "extension:") % cmd, {ext: doc}, indent=4,
                        showdeprecated=True)
         rst.append('\n')
         rst.append(_('(use "hg help extensions" for information on enabling '
                    'extensions)\n'))
         return rst
 
 
     rst = []
     kw = opts.get('keyword')
     if kw or name is None and any(opts[o] for o in opts):
         matches = topicmatch(ui, name or '')
         helpareas = []
         if opts.get('extension'):
             helpareas += [('extensions', _('Extensions'))]
         if opts.get('command'):
             helpareas += [('commands', _('Commands'))]
         if not helpareas:
             helpareas = [('topics', _('Topics')),
                          ('commands', _('Commands')),
                          ('extensions', _('Extensions')),
                          ('extensioncommands', _('Extension Commands'))]
         for t, title in helpareas:
             if matches[t]:
                 rst.append('%s:\n\n' % title)
                 rst.extend(minirst.maketable(sorted(matches[t]), 1))
                 rst.append('\n')
         if not rst:
             msg = _('no matches')
             hint = _('try "hg help" for a list of topics')
             raise error.Abort(msg, hint=hint)
     elif name and name != 'shortlist':
         queries = []
         if unknowncmd:
             queries += [helpextcmd]
         if opts.get('extension'):
             queries += [helpext]
         if opts.get('command'):
             queries += [helpcmd]
         if not queries:
             queries = (helptopic, helpcmd, helpext, helpextcmd)
         for f in queries:
             try:
                 rst = f(name, subtopic)
                 break
             except error.UnknownCommand:
                 pass
         else:
             if unknowncmd:
                 raise error.UnknownCommand(name)
             else:
                 msg = _('no such help topic: %s') % name
                 hint = _('try "hg help --keyword %s"') % name
                 raise error.Abort(msg, hint=hint)
     else:
         # program name
         if not ui.quiet:
             rst = [_("Mercurial Distributed SCM\n"), '\n']
         rst.extend(helplist(None, **opts))
 
     return ''.join(rst)

tests/test-check-py3-compat.t

@@ -1,207 +1,206 b''
 #require test-repo
 
   $ cd "$TESTDIR"/..
 
   $ hg files 'set:(**.py)' | sed 's|\\|/|g' | xargs python contrib/check-py3-compat.py
   contrib/casesmash.py not using absolute_import
   contrib/check-code.py not using absolute_import
   contrib/check-code.py requires print_function
   contrib/check-config.py not using absolute_import
   contrib/check-config.py requires print_function
   contrib/debugcmdserver.py not using absolute_import
   contrib/debugcmdserver.py requires print_function
   contrib/debugshell.py not using absolute_import
   contrib/fixpax.py not using absolute_import
   contrib/fixpax.py requires print_function
   contrib/hgclient.py not using absolute_import
   contrib/hgclient.py requires print_function
   contrib/hgfixes/fix_bytes.py not using absolute_import
   contrib/hgfixes/fix_bytesmod.py not using absolute_import
   contrib/hgfixes/fix_leftover_imports.py not using absolute_import
   contrib/import-checker.py not using absolute_import
   contrib/import-checker.py requires print_function
   contrib/memory.py not using absolute_import
   contrib/perf.py not using absolute_import
   contrib/python-hook-examples.py not using absolute_import
   contrib/revsetbenchmarks.py not using absolute_import
   contrib/revsetbenchmarks.py requires print_function
   contrib/showstack.py not using absolute_import
   contrib/synthrepo.py not using absolute_import
   contrib/win32/hgwebdir_wsgi.py not using absolute_import
   doc/check-seclevel.py not using absolute_import
   doc/gendoc.py not using absolute_import
   doc/hgmanpage.py not using absolute_import
   hgext/__init__.py not using absolute_import
   hgext/acl.py not using absolute_import
   hgext/blackbox.py not using absolute_import
   hgext/bugzilla.py not using absolute_import
   hgext/censor.py not using absolute_import
   hgext/children.py not using absolute_import
   hgext/churn.py not using absolute_import
   hgext/clonebundles.py not using absolute_import
   hgext/color.py not using absolute_import
   hgext/convert/__init__.py not using absolute_import
   hgext/convert/bzr.py not using absolute_import
   hgext/convert/common.py not using absolute_import
   hgext/convert/convcmd.py not using absolute_import
   hgext/convert/cvs.py not using absolute_import
   hgext/convert/cvsps.py not using absolute_import
   hgext/convert/darcs.py not using absolute_import
   hgext/convert/filemap.py not using absolute_import
   hgext/convert/git.py not using absolute_import
   hgext/convert/gnuarch.py not using absolute_import
   hgext/convert/hg.py not using absolute_import
   hgext/convert/monotone.py not using absolute_import
   hgext/convert/p4.py not using absolute_import
   hgext/convert/subversion.py not using absolute_import
   hgext/convert/transport.py not using absolute_import
   hgext/eol.py not using absolute_import
   hgext/extdiff.py not using absolute_import
   hgext/factotum.py not using absolute_import
   hgext/fetch.py not using absolute_import
   hgext/gpg.py not using absolute_import
   hgext/graphlog.py not using absolute_import
   hgext/hgcia.py not using absolute_import
   hgext/hgk.py not using absolute_import
   hgext/highlight/__init__.py not using absolute_import
   hgext/highlight/highlight.py not using absolute_import
   hgext/histedit.py not using absolute_import
   hgext/keyword.py not using absolute_import
   hgext/largefiles/__init__.py not using absolute_import
   hgext/largefiles/basestore.py not using absolute_import
   hgext/largefiles/lfcommands.py not using absolute_import
   hgext/largefiles/lfutil.py not using absolute_import
   hgext/largefiles/localstore.py not using absolute_import
   hgext/largefiles/overrides.py not using absolute_import
   hgext/largefiles/proto.py not using absolute_import
   hgext/largefiles/remotestore.py not using absolute_import
   hgext/largefiles/reposetup.py not using absolute_import
   hgext/largefiles/uisetup.py not using absolute_import
   hgext/largefiles/wirestore.py not using absolute_import
   hgext/mq.py not using absolute_import
   hgext/notify.py not using absolute_import
   hgext/pager.py not using absolute_import
   hgext/patchbomb.py not using absolute_import
   hgext/purge.py not using absolute_import
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