import docstring from doc/hg.1.txt

mercurial/commands.py

@@ -1,2258 +1,2626
 # commands.py - command processing for mercurial
 #
 # Copyright 2005 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 demandload import demandload
 from node import *
 from i18n import gettext as _
 demandload(globals(), "os re sys signal shutil imp urllib pdb")
 demandload(globals(), "fancyopts ui hg util lock revlog")
 demandload(globals(), "fnmatch hgweb mdiff random signal time traceback")
 demandload(globals(), "errno socket version struct atexit sets bz2")
 
 class UnknownCommand(Exception):
     """Exception raised if command is not in the command table."""
 
 def filterfiles(filters, files):
     l = [x for x in files if x in filters]
 
     for t in filters:
         if t and t[-1] != "/":
             t += "/"
         l += [x for x in files if x.startswith(t)]
     return l
 
 def relpath(repo, args):
     cwd = repo.getcwd()
     if cwd:
         return [util.normpath(os.path.join(cwd, x)) for x in args]
     return args
 
 def matchpats(repo, cwd, pats=[], opts={}, head=''):
     return util.cmdmatcher(repo.root, cwd, pats or ['.'], opts.get('include'),
                         opts.get('exclude'), head)
 
 def makewalk(repo, pats, opts, head=''):
     cwd = repo.getcwd()
     files, matchfn, anypats = matchpats(repo, cwd, pats, opts, head)
     exact = dict(zip(files, files))
     def walk():
         for src, fn in repo.walk(files=files, match=matchfn):
             yield src, fn, util.pathto(cwd, fn), fn in exact
     return files, matchfn, walk()
 
 def walk(repo, pats, opts, head=''):
     files, matchfn, results = makewalk(repo, pats, opts, head)
     for r in results:
         yield r
 
 def walkchangerevs(ui, repo, cwd, pats, opts):
     '''Iterate over files and the revs they changed in.
 
     Callers most commonly need to iterate backwards over the history
     it is interested in.  Doing so has awful (quadratic-looking)
     performance, so we use iterators in a "windowed" way.
 
     We walk a window of revisions in the desired order.  Within the
     window, we first walk forwards to gather data, then in the desired
     order (usually backwards) to display it.
 
     This function returns an (iterator, getchange) pair.  The
     getchange function returns the changelog entry for a numeric
     revision.  The iterator yields 3-tuples.  They will be of one of
     the following forms:
 
     "window", incrementing, lastrev: stepping through a window,
     positive if walking forwards through revs, last rev in the
     sequence iterated over - use to reset state for the current window
 
     "add", rev, fns: out-of-order traversal of the given file names
     fns, which changed during revision rev - use to gather data for
     possible display
 
     "iter", rev, None: in-order traversal of the revs earlier iterated
     over with "add" - use to display data'''
 
     if repo.changelog.count() == 0:
         return [], False
 
     cwd = repo.getcwd()
     if not pats and cwd:
         opts['include'] = [os.path.join(cwd, i) for i in opts['include']]
         opts['exclude'] = [os.path.join(cwd, x) for x in opts['exclude']]
     files, matchfn, anypats = matchpats(repo, (pats and cwd) or '',
                                         pats, opts)
     revs = map(int, revrange(ui, repo, opts['rev'] or ['tip:0']))
     wanted = {}
     slowpath = anypats
     window = 300
     fncache = {}
 
     chcache = {}
     def getchange(rev):
         ch = chcache.get(rev)
         if ch is None:
             chcache[rev] = ch = repo.changelog.read(repo.lookup(str(rev)))
         return ch
 
     if not slowpath and not files:
         # No files, no patterns.  Display all revs.
         wanted = dict(zip(revs, revs))
     if not slowpath:
         # Only files, no patterns.  Check the history of each file.
         def filerevgen(filelog):
             for i in xrange(filelog.count() - 1, -1, -window):
                 revs = []
                 for j in xrange(max(0, i - window), i + 1):
                     revs.append(filelog.linkrev(filelog.node(j)))
                 revs.reverse()
                 for rev in revs:
                     yield rev
 
         minrev, maxrev = min(revs), max(revs)
         for file in files:
             filelog = repo.file(file)
             # A zero count may be a directory or deleted file, so
             # try to find matching entries on the slow path.
             if filelog.count() == 0:
                 slowpath = True
                 break
             for rev in filerevgen(filelog):
                 if rev <= maxrev:
                     if rev < minrev:
                         break
                     fncache.setdefault(rev, [])
                     fncache[rev].append(file)
                     wanted[rev] = 1
     if slowpath:
         # The slow path checks files modified in every changeset.
         def changerevgen():
             for i in xrange(repo.changelog.count() - 1, -1, -window):
                 for j in xrange(max(0, i - window), i + 1):
                     yield j, getchange(j)[3]
 
         for rev, changefiles in changerevgen():
             matches = filter(matchfn, changefiles)
             if matches:
                 fncache[rev] = matches
                 wanted[rev] = 1
 
     def iterate():
         for i in xrange(0, len(revs), window):
             yield 'window', revs[0] < revs[-1], revs[-1]
             nrevs = [rev for rev in revs[i:min(i+window, len(revs))]
                      if rev in wanted]
             srevs = list(nrevs)
             srevs.sort()
             for rev in srevs:
                 fns = fncache.get(rev) or filter(matchfn, getchange(rev)[3])
                 yield 'add', rev, fns
             for rev in nrevs:
                 yield 'iter', rev, None
     return iterate(), getchange
 
 revrangesep = ':'
 
 def revrange(ui, repo, revs, revlog=None):
     """Yield revision as strings from a list of revision specifications."""
     if revlog is None:
         revlog = repo.changelog
     revcount = revlog.count()
     def fix(val, defval):
         if not val:
             return defval
         try:
             num = int(val)
             if str(num) != val:
                 raise ValueError
             if num < 0: num += revcount
             if num < 0: num = 0
             elif num >= revcount:
                 raise ValueError
         except ValueError:
             try:
                 num = repo.changelog.rev(repo.lookup(val))
             except KeyError:
                 try:
                     num = revlog.rev(revlog.lookup(val))
                 except KeyError:
                     raise util.Abort(_('invalid revision identifier %s'), val)
         return num
     seen = {}
     for spec in revs:
         if spec.find(revrangesep) >= 0:
             start, end = spec.split(revrangesep, 1)
             start = fix(start, 0)
             end = fix(end, revcount - 1)
             step = start > end and -1 or 1
             for rev in xrange(start, end+step, step):
                 if rev in seen: continue
                 seen[rev] = 1
                 yield str(rev)
         else:
             rev = fix(spec, None)
             if rev in seen: continue
             seen[rev] = 1
             yield str(rev)
 
 def make_filename(repo, r, pat, node=None,
                   total=None, seqno=None, revwidth=None, pathname=None):
     node_expander = {
         'H': lambda: hex(node),
         'R': lambda: str(r.rev(node)),
         'h': lambda: short(node),
         }
     expander = {
         '%': lambda: '%',
         'b': lambda: os.path.basename(repo.root),
         }
 
     try:
         if node:
             expander.update(node_expander)
         if node and revwidth is not None:
             expander['r'] = lambda: str(r.rev(node)).zfill(revwidth)
         if total is not None:
             expander['N'] = lambda: str(total)
         if seqno is not None:
             expander['n'] = lambda: str(seqno)
         if total is not None and seqno is not None:
             expander['n'] = lambda:str(seqno).zfill(len(str(total)))
         if pathname is not None:
             expander['s'] = lambda: os.path.basename(pathname)
             expander['d'] = lambda: os.path.dirname(pathname) or '.'
             expander['p'] = lambda: pathname
 
         newname = []
         patlen = len(pat)
         i = 0
         while i < patlen:
             c = pat[i]
             if c == '%':
                 i += 1
                 c = pat[i]
                 c = expander[c]()
             newname.append(c)
             i += 1
         return ''.join(newname)
     except KeyError, inst:
         raise util.Abort(_("invalid format spec '%%%s' in output file name"),
                     inst.args[0])
 
 def make_file(repo, r, pat, node=None,
               total=None, seqno=None, revwidth=None, mode='wb', pathname=None):
     if not pat or pat == '-':
         return 'w' in mode and sys.stdout or sys.stdin
     if hasattr(pat, 'write') and 'w' in mode:
         return pat
     if hasattr(pat, 'read') and 'r' in mode:
         return pat
     return open(make_filename(repo, r, pat, node, total, seqno, revwidth,
                               pathname),
                 mode)
 
 def dodiff(fp, ui, repo, node1, node2, files=None, match=util.always,
            changes=None, text=False):
     if not changes:
         (c, a, d, u) = repo.changes(node1, node2, files, match=match)
     else:
         (c, a, d, u) = changes
     if files:
         c, a, d = map(lambda x: filterfiles(files, x), (c, a, d))
 
     if not c and not a and not d:
         return
 
     if node2:
         change = repo.changelog.read(node2)
         mmap2 = repo.manifest.read(change[0])
         date2 = util.datestr(change[2])
         def read(f):
             return repo.file(f).read(mmap2[f])
     else:
         date2 = util.datestr()
         if not node1:
             node1 = repo.dirstate.parents()[0]
         def read(f):
             return repo.wfile(f).read()
 
     if ui.quiet:
         r = None
     else:
         hexfunc = ui.verbose and hex or short
         r = [hexfunc(node) for node in [node1, node2] if node]
 
     change = repo.changelog.read(node1)
     mmap = repo.manifest.read(change[0])
     date1 = util.datestr(change[2])
 
     for f in c:
         to = None
         if f in mmap:
             to = repo.file(f).read(mmap[f])
         tn = read(f)
         fp.write(mdiff.unidiff(to, date1, tn, date2, f, r, text=text))
     for f in a:
         to = None
         tn = read(f)
         fp.write(mdiff.unidiff(to, date1, tn, date2, f, r, text=text))
     for f in d:
         to = repo.file(f).read(mmap[f])
         tn = None
         fp.write(mdiff.unidiff(to, date1, tn, date2, f, r, text=text))
 
 def trimuser(ui, name, rev, revcache):
     """trim the name of the user who committed a change"""
     user = revcache.get(rev)
     if user is None:
         user = revcache[rev] = ui.shortuser(name)
     return user
 
 def show_changeset(ui, repo, rev=0, changenode=None, brinfo=None):
     """show a single changeset or file revision"""
     log = repo.changelog
     if changenode is None:
         changenode = log.node(rev)
     elif not rev:
         rev = log.rev(changenode)
 
     if ui.quiet:
         ui.write("%d:%s\n" % (rev, short(changenode)))
         return
 
     changes = log.read(changenode)
     date = util.datestr(changes[2])
 
     parents = [(log.rev(p), ui.verbose and hex(p) or short(p))
                for p in log.parents(changenode)
                if ui.debugflag or p != nullid]
     if not ui.debugflag and len(parents) == 1 and parents[0][0] == rev-1:
         parents = []
 
     if ui.verbose:
         ui.write(_("changeset:   %d:%s\n") % (rev, hex(changenode)))
     else:
         ui.write(_("changeset:   %d:%s\n") % (rev, short(changenode)))
 
     for tag in repo.nodetags(changenode):
         ui.status(_("tag:         %s\n") % tag)
     for parent in parents:
         ui.write(_("parent:      %d:%s\n") % parent)
 
     if brinfo and changenode in brinfo:
         br = brinfo[changenode]
         ui.write(_("branch:      %s\n") % " ".join(br))
 
     ui.debug(_("manifest:    %d:%s\n") % (repo.manifest.rev(changes[0]),
                                       hex(changes[0])))
     ui.status(_("user:        %s\n") % changes[1])
     ui.status(_("date:        %s\n") % date)
 
     if ui.debugflag:
         files = repo.changes(log.parents(changenode)[0], changenode)
         for key, value in zip([_("files:"), _("files+:"), _("files-:")], files):
             if value:
                 ui.note("%-12s %s\n" % (key, " ".join(value)))
     else:
         ui.note(_("files:       %s\n") % " ".join(changes[3]))
 
     description = changes[4].strip()
     if description:
         if ui.verbose:
             ui.status(_("description:\n"))
             ui.status(description)
             ui.status("\n\n")
         else:
             ui.status(_("summary:     %s\n") % description.splitlines()[0])
     ui.status("\n")
 
 def show_version(ui):
     """output version and copyright information"""
     ui.write(_("Mercurial Distributed SCM (version %s)\n")
              % version.get_version())
     ui.status(_(
         "\nCopyright (C) 2005 Matt Mackall <[e-mail]>\n"
         "This is free software; see the source for copying conditions. "
         "There is NO\nwarranty; "
         "not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
     ))
 
 def help_(ui, cmd=None, with_version=False):
     """show help for a given command or all commands"""
     option_lists = []
     if cmd and cmd != 'shortlist':
         if with_version:
             show_version(ui)
             ui.write('\n')
         key, i = find(cmd)
         # synopsis
         ui.write("%s\n\n" % i[2])
 
         # description
         doc = i[0].__doc__
         if ui.quiet:
             doc = doc.splitlines(0)[0]
         ui.write("%s\n" % doc.rstrip())
 
         if not ui.quiet:
             # aliases
             aliases = ', '.join(key.split('|')[1:])
             if aliases:
                 ui.write(_("\naliases: %s\n") % aliases)
 
             # options
             if i[1]:
                 option_lists.append(("options", i[1]))
 
     else:
         # program name
         if ui.verbose or with_version:
             show_version(ui)
         else:
             ui.status(_("Mercurial Distributed SCM\n"))
         ui.status('\n')
 
         # list of commands
         if cmd == "shortlist":
             ui.status(_('basic commands (use "hg help" '
                         'for the full list or option "-v" for details):\n\n'))
         elif ui.verbose:
             ui.status(_('list of commands:\n\n'))
         else:
             ui.status(_('list of commands (use "hg help -v" '
                         'to show aliases and global options):\n\n'))
 
         h = {}
         cmds = {}
         for c, e in table.items():
             f = c.split("|")[0]
             if cmd == "shortlist" and not f.startswith("^"):
                 continue
             f = f.lstrip("^")
             if not ui.debugflag and f.startswith("debug"):
                 continue
             d = ""
             if e[0].__doc__:
                 d = e[0].__doc__.splitlines(0)[0].rstrip()
             h[f] = d
             cmds[f]=c.lstrip("^")
 
         fns = h.keys()
         fns.sort()
         m = max(map(len, fns))
         for f in fns:
             if ui.verbose:
                 commands = cmds[f].replace("|",", ")
                 ui.write(" %s:\n      %s\n"%(commands,h[f]))
             else:
                 ui.write(' %-*s   %s\n' % (m, f, h[f]))
 
     # global options
     if ui.verbose:
         option_lists.append(("global options", globalopts))
 
     # list all option lists
     opt_output = []
     for title, options in option_lists:
         opt_output.append(("\n%s:\n" % title, None))
         for shortopt, longopt, default, desc in options:
             opt_output.append(("%2s%s" % (shortopt and "-%s" % shortopt,
                                           longopt and " --%s" % longopt),
                                "%s%s" % (desc,
                                          default and _(" (default: %s)") % default
                                          or "")))
 
     if opt_output:
         opts_len = max([len(line[0]) for line in opt_output if line[1]])
         for first, second in opt_output:
             if second:
                 ui.write(" %-*s  %s\n" % (opts_len, first, second))
             else:
                 ui.write("%s\n" % first)
 
 # Commands start here, listed alphabetically
 
 def add(ui, repo, *pats, **opts):
-    '''add the specified files on the next commit'''
+    """add the specified files on the next commit
+
+    Schedule files to be version controlled and added to the repository.
+
+    The files will be added to the repository at the next commit.
+
+    If no names are given, add all files in the current directory and
+    its subdirectories.
+    """
+
     names = []
     for src, abs, rel, exact in walk(repo, pats, opts):
         if exact:
             if ui.verbose: ui.status(_('adding %s\n') % rel)
             names.append(abs)
         elif repo.dirstate.state(abs) == '?':
             ui.status(_('adding %s\n') % rel)
             names.append(abs)
     repo.add(names)
 
 def addremove(ui, repo, *pats, **opts):
-    """add all new files, delete all missing files"""
+    """add all new files, delete all missing files
+
+    Add all new files and remove all missing files from the repository.
+
+    New files are ignored if they match any of the patterns in .hgignore. As
+    with add, these changes take effect at the next commit.
+    """
     add, remove = [], []
     for src, abs, rel, exact in walk(repo, pats, opts):
         if src == 'f' and repo.dirstate.state(abs) == '?':
             add.append(abs)
             if ui.verbose or not exact:
                 ui.status(_('adding %s\n') % rel)
         if repo.dirstate.state(abs) != 'r' and not os.path.exists(rel):
             remove.append(abs)
             if ui.verbose or not exact:
                 ui.status(_('removing %s\n') % rel)
     repo.add(add)
     repo.remove(remove)
 
 def annotate(ui, repo, *pats, **opts):
-    """show changeset information per file line"""
+    """show changeset information per file line
+
+    List changes in files, showing the revision id responsible for each line
+
+    This command is useful to discover who did a change or when a change took
+    place.
+
+    Without the -a option, annotate will avoid processing files it
+    detects as binary. With -a, annotate will generate an annotation
+    anyway, probably with undesirable results.
+    """
     def getnode(rev):
         return short(repo.changelog.node(rev))
 
     ucache = {}
     def getname(rev):
         cl = repo.changelog.read(repo.changelog.node(rev))
         return trimuser(ui, cl[1], rev, ucache)
 
     if not pats:
         raise util.Abort(_('at least one file name or pattern required'))
 
     opmap = [['user', getname], ['number', str], ['changeset', getnode]]
     if not opts['user'] and not opts['changeset']:
         opts['number'] = 1
 
     if opts['rev']:
         node = repo.changelog.lookup(opts['rev'])
     else:
         node = repo.dirstate.parents()[0]
     change = repo.changelog.read(node)
     mmap = repo.manifest.read(change[0])
 
     for src, abs, rel, exact in walk(repo, pats, opts):
         if abs not in mmap:
             ui.warn(_("warning: %s is not in the repository!\n") % rel)
             continue
 
         f = repo.file(abs)
         if not opts['text'] and util.binary(f.read(mmap[abs])):
             ui.write(_("%s: binary file\n") % rel)
             continue
 
         lines = f.annotate(mmap[abs])
         pieces = []
 
         for o, f in opmap:
             if opts[o]:
                 l = [f(n) for n, dummy in lines]
                 if l:
                     m = max(map(len, l))
                     pieces.append(["%*s" % (m, x) for x in l])
 
         if pieces:
             for p, l in zip(zip(*pieces), lines):
                 ui.write("%s: %s" % (" ".join(p), l[1]))
 
 def bundle(ui, repo, fname, dest="default-push", **opts):
-    """create a changegroup file"""
+    """create a changegroup file
+
+    Generate a compressed changegroup file collecting all changesets
+    not found in the other repository.
+
+    This file can then be transferred using conventional means and
+    applied to another repository with the unbundle command. This is
+    useful when native push and pull are not available or when
+    exporting an entire repository is undesirable. The standard file
+    extension is ".hg".
+
+    Unlike import/export, this exactly preserves all changeset
+    contents including permissions, rename data, and revision history.
+    """
     f = open(fname, "wb")
     dest = ui.expandpath(dest)
     other = hg.repository(ui, dest)
     o = repo.findoutgoing(other)
     cg = repo.changegroup(o)
 
     try:
         f.write("HG10")
         z = bz2.BZ2Compressor(9)
         while 1:
             chunk = cg.read(4096)
             if not chunk:
                 break
             f.write(z.compress(chunk))
         f.write(z.flush())
     except:
         os.unlink(fname)
         raise
 
 def cat(ui, repo, file1, *pats, **opts):
-    """output the latest or given revisions of files"""
+    """output the latest or given revisions of files
+
+    Print the specified files as they were at the given revision.
+    If no revision is given then the tip is used.
+
+    Output may be to a file, in which case the name of the file is
+    given using a format string.  The formatting rules are the same as
+    for the export command, with the following additions:
+
+    %s   basename of file being printed
+    %d   dirname of file being printed, or '.' if in repo root
+    %p   root-relative path name of file being printed
+    """
     mf = {}
     if opts['rev']:
         change = repo.changelog.read(repo.lookup(opts['rev']))
         mf = repo.manifest.read(change[0])
     for src, abs, rel, exact in walk(repo, (file1,) + pats, opts):
         r = repo.file(abs)
         if opts['rev']:
             try:
                 n = mf[abs]
             except (hg.RepoError, KeyError):
                 try:
                     n = r.lookup(rev)
                 except KeyError, inst:
                     raise util.Abort(_('cannot find file %s in rev %s'), rel, rev)
         else:
             n = r.tip()
         fp = make_file(repo, r, opts['output'], node=n, pathname=abs)
         fp.write(r.read(n))
 
 def clone(ui, source, dest=None, **opts):
-    """make a copy of an existing repository"""
+    """make a copy of an existing repository
+
+    Create a copy of an existing repository in a new directory.
+
+    If no destination directory name is specified, it defaults to the
+    basename of the source.
+
+    The location of the source is added to the new repository's
+    .hg/hgrc file, as the default to be used for future pulls.
+
+    For efficiency, hardlinks are used for cloning whenever the source
+    and destination are on the same filesystem.  Some filesystems,
+    such as AFS, implement hardlinking incorrectly, but do not report
+    errors.  In these cases, use the --pull option to avoid
+    hardlinking.
+    """
     if dest is None:
         dest = os.path.basename(os.path.normpath(source))
 
     if os.path.exists(dest):
         raise util.Abort(_("destination '%s' already exists"), dest)
 
     dest = os.path.realpath(dest)
 
     class Dircleanup:
         def __init__(self, dir_):
             self.rmtree = shutil.rmtree
             self.dir_ = dir_
             os.mkdir(dir_)
         def close(self):
             self.dir_ = None
         def __del__(self):
             if self.dir_:
                 self.rmtree(self.dir_, True)
 
     if opts['ssh']:
         ui.setconfig("ui", "ssh", opts['ssh'])
     if opts['remotecmd']:
         ui.setconfig("ui", "remotecmd", opts['remotecmd'])
 
     if not os.path.exists(source):
         source = ui.expandpath(source)
 
     d = Dircleanup(dest)
     abspath = source
     other = hg.repository(ui, source)
 
     copy = False
     if other.dev() != -1:
         abspath = os.path.abspath(source)
         if not opts['pull']:
             copy = True
 
     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
             l1 = lock.lock(os.path.join(source, ".hg", "lock"))
         except OSError:
             copy = False
 
     if copy:
         # we lock here to avoid premature writing to the target
         os.mkdir(os.path.join(dest, ".hg"))
         l2 = lock.lock(os.path.join(dest, ".hg", "lock"))
 
         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, ".hg", f)
             util.copyfiles(src, dst)
 
         repo = hg.repository(ui, dest)
 
     else:
         repo = hg.repository(ui, dest, create=1)
         repo.pull(other)
 
     f = repo.opener("hgrc", "w", text=True)
     f.write("[paths]\n")
     f.write("default = %s\n" % abspath)
 
     if not opts['noupdate']:
         update(ui, repo)
 
     d.close()
 
 def commit(ui, repo, *pats, **opts):
-    """commit the specified files or all outstanding changes"""
+    """commit the specified files or all outstanding changes
+
+    Commit changes to the given files into the repository.
+
+    If a list of files is omitted, all changes reported by "hg status"
+    from the root of the repository will be commited.
+
+    The HGEDITOR or EDITOR environment variables are used to start an
+    editor to add a commit comment.
+    """
     if opts['text']:
         ui.warn(_("Warning: -t and --text is deprecated,"
                   " please use -m or --message instead.\n"))
     message = opts['message'] or opts['text']
     logfile = opts['logfile']
 
     if message and logfile:
         raise util.Abort(_('options --message and --logfile are mutually '
                            'exclusive'))
     if not message and logfile:
         try:
             if logfile == '-':
                 message = sys.stdin.read()
             else:
                 message = open(logfile).read()
         except IOError, inst:
             raise util.Abort(_("can't read commit message '%s': %s") %
                              (logfile, inst.strerror))
 
     if opts['addremove']:
         addremove(ui, repo, *pats, **opts)
     cwd = repo.getcwd()
     if not pats and cwd:
         opts['include'] = [os.path.join(cwd, i) for i in opts['include']]
         opts['exclude'] = [os.path.join(cwd, x) for x in opts['exclude']]
     fns, match, anypats = matchpats(repo, (pats and repo.getcwd()) or '',
                                     pats, opts)
     if pats:
         c, a, d, u = repo.changes(files=fns, match=match)
         files = c + a + [fn for fn in d if repo.dirstate.state(fn) == 'r']
     else:
         files = []
     try:
         repo.commit(files, message, opts['user'], opts['date'], match)
     except ValueError, inst:
         raise util.Abort(str(inst))
 
 def docopy(ui, repo, pats, opts):
     if not pats:
         raise util.Abort(_('no source or destination specified'))
     elif len(pats) == 1:
         raise util.Abort(_('no destination specified'))
     pats = list(pats)
     dest = pats.pop()
     sources = []
 
     def okaytocopy(abs, rel, exact):
         reasons = {'?': _('is not managed'),
                    'a': _('has been marked for add')}
         reason = reasons.get(repo.dirstate.state(abs))
         if reason:
             if exact: ui.warn(_('%s: not copying - file %s\n') % (rel, reason))
         else:
             return True
 
     for src, abs, rel, exact in walk(repo, pats, opts):
         if okaytocopy(abs, rel, exact):
             sources.append((abs, rel, exact))
     if not sources:
         raise util.Abort(_('no files to copy'))
 
     cwd = repo.getcwd()
     absdest = util.canonpath(repo.root, cwd, dest)
     reldest = util.pathto(cwd, absdest)
     if os.path.exists(reldest):
         destisfile = not os.path.isdir(reldest)
     else:
         destisfile = len(sources) == 1 or repo.dirstate.state(absdest) != '?'
 
     if destisfile:
         if opts['parents']:
             raise util.Abort(_('with --parents, destination must be a directory'))
         elif len(sources) > 1:
             raise util.Abort(_('with multiple sources, destination must be a '
                                'directory'))
     errs, copied = 0, []
     for abs, rel, exact in sources:
         if opts['parents']:
             mydest = os.path.join(dest, rel)
         elif destisfile:
             mydest = reldest
         else:
             mydest = os.path.join(dest, os.path.basename(rel))
         myabsdest = util.canonpath(repo.root, cwd, mydest)
         myreldest = util.pathto(cwd, myabsdest)
         if not opts['force'] and repo.dirstate.state(myabsdest) not in 'a?':
             ui.warn(_('%s: not overwriting - file already managed\n') % myreldest)
             continue
         mydestdir = os.path.dirname(myreldest) or '.'
         if not opts['after']:
             try:
                 if opts['parents']: os.makedirs(mydestdir)
                 elif not destisfile: os.mkdir(mydestdir)
             except OSError, inst:
                 if inst.errno != errno.EEXIST: raise
         if ui.verbose or not exact:
             ui.status(_('copying %s to %s\n') % (rel, myreldest))
         if not opts['after']:
             try:
                 shutil.copyfile(rel, myreldest)
                 shutil.copymode(rel, myreldest)
             except shutil.Error, inst:
                 raise util.Abort(str(inst))
             except IOError, inst:
                 if inst.errno == errno.ENOENT:
                     ui.warn(_('%s: deleted in working copy\n') % rel)
                 else:
                     ui.warn(_('%s: cannot copy - %s\n') % (rel, inst.strerror))
                 errs += 1
                 continue
         repo.copy(abs, myabsdest)
         copied.append((abs, rel, exact))
     if errs:
         ui.warn(_('(consider using --after)\n'))
     return errs, copied
 
 def copy(ui, repo, *pats, **opts):
-    """mark files as copied for the next commit"""
+    """mark files as copied for the next commit
+
+    Mark dest as having copies of source files.  If dest is a
+    directory, copies are put in that directory.  If dest is a file,
+    there can only be one source.
+
+    By default, this command copies the contents of files as they
+    stand in the working directory.  If invoked with --after, the
+    operation is recorded, but no copying is performed.
+
+    This command takes effect in the next commit.
+
+    NOTE: This command should be treated as experimental. While it
+    should properly record copied files, this information is not yet
+    fully used by merge, nor fully reported by log.
+    """
     errs, copied = docopy(ui, repo, pats, opts)
     return errs
 
 def debugancestor(ui, index, rev1, rev2):
     """find the ancestor revision of two revisions in a given index"""
     r = revlog.revlog(file, index, "")
     a = r.ancestor(r.lookup(rev1), r.lookup(rev2))
     ui.write("%d:%s\n" % (r.rev(a), hex(a)))
 
 def debugcheckstate(ui, repo):
     """validate the correctness of the current dirstate"""
     parent1, parent2 = repo.dirstate.parents()
     repo.dirstate.read()
     dc = repo.dirstate.map
     keys = dc.keys()
     keys.sort()
     m1n = repo.changelog.read(parent1)[0]
     m2n = repo.changelog.read(parent2)[0]
     m1 = repo.manifest.read(m1n)
     m2 = repo.manifest.read(m2n)
     errors = 0
     for f in dc:
         state = repo.dirstate.state(f)
         if state in "nr" and f not in m1:
             ui.warn(_("%s in state %s, but not in manifest1\n") % (f, state))
             errors += 1
         if state in "a" and f in m1:
             ui.warn(_("%s in state %s, but also in manifest1\n") % (f, state))
             errors += 1
         if state in "m" and f not in m1 and f not in m2:
             ui.warn(_("%s in state %s, but not in either manifest\n") %
                     (f, state))
             errors += 1
     for f in m1:
         state = repo.dirstate.state(f)
         if state not in "nrm":
             ui.warn(_("%s in manifest1, but listed as state %s") % (f, state))
             errors += 1
     if errors:
         raise util.Abort(_(".hg/dirstate inconsistent with current parent's manifest"))
 
 def debugconfig(ui):
     """show combined config settings from all hgrc files"""
     try:
         repo = hg.repository(ui)
     except hg.RepoError:
         pass
     for section, name, value in ui.walkconfig():
         ui.write('%s.%s=%s\n' % (section, name, value))
 
 def debugsetparents(ui, repo, rev1, rev2=None):
     """
     manually set the parents of the current working directory
 
     This is useful for writing repository conversion tools, but should
     be used with care.
     """
 
     if not rev2:
         rev2 = hex(nullid)
 
     repo.dirstate.setparents(repo.lookup(rev1), repo.lookup(rev2))
 
 def debugstate(ui, repo):
     """show the contents of the current dirstate"""
     repo.dirstate.read()
     dc = repo.dirstate.map
     keys = dc.keys()
     keys.sort()
     for file_ in keys:
         ui.write("%c %3o %10d %s %s\n"
                  % (dc[file_][0], dc[file_][1] & 0777, dc[file_][2],
                     time.strftime("%x %X",
                                   time.localtime(dc[file_][3])), file_))
     for f in repo.dirstate.copies:
         ui.write(_("copy: %s -> %s\n") % (repo.dirstate.copies[f], f))
 
 def debugdata(ui, file_, rev):
     """dump the contents of an data file revision"""
     r = revlog.revlog(file, file_[:-2] + ".i", file_)
     try:
         ui.write(r.revision(r.lookup(rev)))
     except KeyError:
         raise util.Abort(_('invalid revision identifier %s'), rev)
 
 def debugindex(ui, file_):
     """dump the contents of an index file"""
     r = revlog.revlog(file, file_, "")
     ui.write("   rev    offset  length   base linkrev" +
              " nodeid       p1           p2\n")
     for i in range(r.count()):
         e = r.index[i]
         ui.write("% 6d % 9d % 7d % 6d % 7d %s %s %s\n" % (
                 i, e[0], e[1], e[2], e[3],
             short(e[6]), short(e[4]), short(e[5])))
 
 def debugindexdot(ui, file_):
     """dump an index DAG as a .dot file"""
     r = revlog.revlog(file, file_, "")
     ui.write("digraph G {\n")
     for i in range(r.count()):
         e = r.index[i]
         ui.write("\t%d -> %d\n" % (r.rev(e[4]), i))
         if e[5] != nullid:
             ui.write("\t%d -> %d\n" % (r.rev(e[5]), i))
     ui.write("}\n")
 
 def debugrename(ui, repo, file, rev=None):
     """dump rename information"""
     r = repo.file(relpath(repo, [file])[0])
     if rev:
         try:
             # assume all revision numbers are for changesets
             n = repo.lookup(rev)
             change = repo.changelog.read(n)
             m = repo.manifest.read(change[0])
             n = m[relpath(repo, [file])[0]]
         except hg.RepoError, KeyError:
             n = r.lookup(rev)
     else:
         n = r.tip()
     m = r.renamed(n)
     if m:
         ui.write(_("renamed from %s:%s\n") % (m[0], hex(m[1])))
     else:
         ui.write(_("not renamed\n"))
 
 def debugwalk(ui, repo, *pats, **opts):
     """show how files match on given patterns"""
     items = list(walk(repo, pats, opts))
     if not items:
         return
     fmt = '%%s  %%-%ds  %%-%ds  %%s' % (
         max([len(abs) for (src, abs, rel, exact) in items]),
         max([len(rel) for (src, abs, rel, exact) in items]))
     for src, abs, rel, exact in items:
         line = fmt % (src, abs, rel, exact and 'exact' or '')
         ui.write("%s\n" % line.rstrip())
 
 def diff(ui, repo, *pats, **opts):
-    """diff working directory (or selected files)"""
+    """diff working directory (or selected files)
+
+    Show differences between revisions for the specified files.
+
+    Differences between files are shown using the unified diff format.
+
+    When two revision arguments are given, then changes are shown
+    between those revisions. If only one revision is specified then
+    that revision is compared to the working directory, and, when no
+    revisions are specified, the working directory files are compared
+    to its parent.
+
+    Without the -a option, diff will avoid generating diffs of files
+    it detects as binary. With -a, diff will generate a diff anyway,
+    probably with undesirable results.
+    """
     node1, node2 = None, None
     revs = [repo.lookup(x) for x in opts['rev']]
 
     if len(revs) > 0:
         node1 = revs[0]
     if len(revs) > 1:
         node2 = revs[1]
     if len(revs) > 2:
         raise util.Abort(_("too many revisions to diff"))
 
     fns, matchfn, anypats = matchpats(repo, repo.getcwd(), pats, opts)
 
     dodiff(sys.stdout, ui, repo, node1, node2, fns, match=matchfn,
            text=opts['text'])
 
 def doexport(ui, repo, changeset, seqno, total, revwidth, opts):
     node = repo.lookup(changeset)
     prev, other = repo.changelog.parents(node)
     change = repo.changelog.read(node)
 
     fp = make_file(repo, repo.changelog, opts['output'],
                    node=node, total=total, seqno=seqno,
                    revwidth=revwidth)
     if fp != sys.stdout:
         ui.note("%s\n" % fp.name)
 
     fp.write("# HG changeset patch\n")
     fp.write("# User %s\n" % change[1])
     fp.write("# Node ID %s\n" % hex(node))
     fp.write("# Parent  %s\n" % hex(prev))
     if other != nullid:
         fp.write("# Parent  %s\n" % hex(other))
     fp.write(change[4].rstrip())
     fp.write("\n\n")
 
     dodiff(fp, ui, repo, prev, node, text=opts['text'])
     if fp != sys.stdout:
         fp.close()
 
 def export(ui, repo, *changesets, **opts):
-    """dump the header and diffs for one or more changesets"""
+    """dump the header and diffs for one or more changesets
+
+    Print the changeset header and diffs for one or more revisions.
+
+    The information shown in the changeset header is: author,
+    changeset hash, parent and commit comment.
+
+    Output may be to a file, in which case the name of the file is
+    given using a format string.  The formatting rules are as follows:
+
+    %%   literal "%" character
+    %H   changeset hash (40 bytes of hexadecimal)
+    %N   number of patches being generated
+    %R   changeset revision number
+    %b   basename of the exporting repository
+    %h   short-form changeset hash (12 bytes of hexadecimal)
+    %n   zero-padded sequence number, starting at 1
+    %r   zero-padded changeset revision number
+
+    Without the -a option, export will avoid generating diffs of files
+    it detects as binary. With -a, export will generate a diff anyway,
+    probably with undesirable results.
+    """
     if not changesets:
         raise util.Abort(_("export requires at least one changeset"))
     seqno = 0
     revs = list(revrange(ui, repo, changesets))
     total = len(revs)
     revwidth = max(map(len, revs))
     ui.note(len(revs) > 1 and _("Exporting patches:\n") or _("Exporting patch:\n"))
     for cset in revs:
         seqno += 1
         doexport(ui, repo, cset, seqno, total, revwidth, opts)
 
 def forget(ui, repo, *pats, **opts):
-    """don't add the specified files on the next commit"""
+    """don't add the specified files on the next commit
+
+    Undo an 'hg add' scheduled for the next commit.
+    """
     forget = []
     for src, abs, rel, exact in walk(repo, pats, opts):
         if repo.dirstate.state(abs) == 'a':
             forget.append(abs)
             if ui.verbose or not exact:
                 ui.status(_('forgetting %s\n') % rel)
     repo.forget(forget)
 
 def grep(ui, repo, pattern, *pats, **opts):
-    """search for a pattern in specified files and revisions"""
+    """search for a pattern in specified files and revisions
+
+    Search revisions of files for a regular expression.
+
+    This command behaves differently than Unix grep.  It only accepts
+    Python/Perl regexps.  It searches repository history, not the
+    working directory.  It always prints the revision number in which
+    a match appears.
+
+    By default, grep only prints output for the first revision of a
+    file in which it finds a match.  To get it to print every revision
+    that contains a change in match status ("-" for a match that
+    becomes a non-match, or "+" for a non-match that becomes a match),
+    use the --all flag.
+    """
     reflags = 0
     if opts['ignore_case']:
         reflags |= re.I
     regexp = re.compile(pattern, reflags)
     sep, eol = ':', '\n'
     if opts['print0']:
         sep = eol = '\0'
 
     fcache = {}
     def getfile(fn):
         if fn not in fcache:
             fcache[fn] = repo.file(fn)
         return fcache[fn]
 
     def matchlines(body):
         begin = 0
         linenum = 0
         while True:
             match = regexp.search(body, begin)
             if not match:
                 break
             mstart, mend = match.span()
             linenum += body.count('\n', begin, mstart) + 1
             lstart = body.rfind('\n', begin, mstart) + 1 or begin
             lend = body.find('\n', mend)
             yield linenum, mstart - lstart, mend - lstart, body[lstart:lend]
             begin = lend + 1
 
     class linestate:
         def __init__(self, line, linenum, colstart, colend):
             self.line = line
             self.linenum = linenum
             self.colstart = colstart
             self.colend = colend
         def __eq__(self, other):
             return self.line == other.line
         def __hash__(self):
             return hash(self.line)
 
     matches = {}
     def grepbody(fn, rev, body):
         matches[rev].setdefault(fn, {})
         m = matches[rev][fn]
         for lnum, cstart, cend, line in matchlines(body):
             s = linestate(line, lnum, cstart, cend)
             m[s] = s
 
     prev = {}
     ucache = {}
     def display(fn, rev, states, prevstates):
         diff = list(sets.Set(states).symmetric_difference(sets.Set(prevstates)))
         diff.sort(lambda x, y: cmp(x.linenum, y.linenum))
         counts = {'-': 0, '+': 0}
         filerevmatches = {}
         for l in diff:
             if incrementing or not opts['all']:
                 change = ((l in prevstates) and '-') or '+'
                 r = rev
             else:
                 change = ((l in states) and '-') or '+'
                 r = prev[fn]
             cols = [fn, str(rev)]
             if opts['line_number']: cols.append(str(l.linenum))
             if opts['all']: cols.append(change)
             if opts['user']: cols.append(trimuser(ui, getchange(rev)[1], rev,
                                                   ucache))
             if opts['files_with_matches']:
                 c = (fn, rev)
                 if c in filerevmatches: continue
                 filerevmatches[c] = 1
             else:
                 cols.append(l.line)
             ui.write(sep.join(cols), eol)
             counts[change] += 1
         return counts['+'], counts['-']
 
     fstate = {}
     skip = {}
     changeiter, getchange = walkchangerevs(ui, repo, repo.getcwd(), pats, opts)
     count = 0
     incrementing = False
     for st, rev, fns in changeiter:
         if st == 'window':
             incrementing = rev
             matches.clear()
         elif st == 'add':
             change = repo.changelog.read(repo.lookup(str(rev)))
             mf = repo.manifest.read(change[0])
             matches[rev] = {}
             for fn in fns:
                 if fn in skip: continue
                 fstate.setdefault(fn, {})
                 try:
                     grepbody(fn, rev, getfile(fn).read(mf[fn]))
                 except KeyError:
                     pass
         elif st == 'iter':
             states = matches[rev].items()
             states.sort()
             for fn, m in states:
                 if fn in skip: continue
                 if incrementing or not opts['all'] or fstate[fn]:
                     pos, neg = display(fn, rev, m, fstate[fn])
                     count += pos + neg
                     if pos and not opts['all']:
                         skip[fn] = True
                 fstate[fn] = m
                 prev[fn] = rev
 
     if not incrementing:
         fstate = fstate.items()
         fstate.sort()
         for fn, state in fstate:
             if fn in skip: continue
             display(fn, rev, {}, state)
     return (count == 0 and 1) or 0
 
 def heads(ui, repo, **opts):
-    """show current repository heads"""
+    """show current repository heads
+
+    Show all repository head changesets.
+
+    Repository "heads" are changesets that don't have children
+    changesets. They are where development generally takes place and
+    are the usual targets for update and merge operations.
+    """
     heads = repo.changelog.heads()
     br = None
     if opts['branches']:
         br = repo.branchlookup(heads)
     for n in repo.changelog.heads():
         show_changeset(ui, repo, changenode=n, brinfo=br)
 
 def identify(ui, repo):
-    """print information about the working copy"""
+    """print information about the working copy
+    Print a short summary of the current state of the repo.
+
+    This summary identifies the repository state using one or two parent
+    hash identifiers, followed by a "+" if there are uncommitted changes
+    in the working directory, followed by a list of tags for this revision.
+    """
     parents = [p for p in repo.dirstate.parents() if p != nullid]
     if not parents:
         ui.write(_("unknown\n"))
         return
 
     hexfunc = ui.verbose and hex or short
     (c, a, d, u) = repo.changes()
     output = ["%s%s" % ('+'.join([hexfunc(parent) for parent in parents]),
                         (c or a or d) and "+" or "")]
 
     if not ui.quiet:
         # multiple tags for a single parent separated by '/'
         parenttags = ['/'.join(tags)
                       for tags in map(repo.nodetags, parents) if tags]
         # tags for multiple parents separated by ' + '
         if parenttags:
             output.append(' + '.join(parenttags))
 
     ui.write("%s\n" % ' '.join(output))
 
 def import_(ui, repo, patch1, *patches, **opts):
-    """import an ordered set of patches"""
+    """import an ordered set of patches
+
+    Import a list of patches and commit them individually.
+
+    If there are outstanding changes in the working directory, import
+    will abort unless given the -f flag.
+
+    If a patch looks like a mail message (its first line starts with
+    "From " or looks like an RFC822 header), it will not be applied
+    unless the -f option is used.  The importer neither parses nor
+    discards mail headers, so use -f only to override the "mailness"
+    safety check, not to import a real mail message.
+    """
     patches = (patch1,) + patches
 
     if not opts['force']:
         (c, a, d, u) = repo.changes()
         if c or a or d:
             raise util.Abort(_("outstanding uncommitted changes"))
 
     d = opts["base"]
     strip = opts["strip"]
 
     mailre = re.compile(r'(?:From |[\w-]+:)')
 
     # attempt to detect the start of a patch
     # (this heuristic is borrowed from quilt)
     diffre = re.compile(r'(?:Index:[ \t]|diff[ \t]|RCS file: |' +
                         'retrieving revision [0-9]+(\.[0-9]+)*$|' +
                         '(---|\*\*\*)[ \t])')
 
     for patch in patches:
         ui.status(_("applying %s\n") % patch)
         pf = os.path.join(d, patch)
 
         message = []
         user = None
         hgpatch = False
         for line in file(pf):
             line = line.rstrip()
             if (not message and not hgpatch and
                    mailre.match(line) and not opts['force']):
                 if len(line) > 35: line = line[:32] + '...'
                 raise util.Abort(_('first line looks like a '
                                    'mail header: ') + line)
             if diffre.match(line):
                 break
             elif hgpatch:
                 # parse values when importing the result of an hg export
                 if line.startswith("# User "):
                     user = line[7:]
                     ui.debug(_('User: %s\n') % user)
                 elif not line.startswith("# ") and line:
                     message.append(line)
                     hgpatch = False
             elif line == '# HG changeset patch':
                 hgpatch = True
                 message = []       # We may have collected garbage
             else:
                 message.append(line)
 
         # make sure message isn't empty
         if not message:
             message = _("imported patch %s\n") % patch
         else:
             message = "%s\n" % '\n'.join(message)
         ui.debug(_('message:\n%s\n') % message)
 
         files = util.patch(strip, pf, ui)
 
         if len(files) > 0:
             addremove(ui, repo, *files)
         repo.commit(files, message, user)
 
 def incoming(ui, repo, source="default", **opts):
-    """show new changesets found in source"""
+    """show new changesets found in source
+
+    Show new changesets found in the specified repo or the default
+    pull repo. These are the changesets that would be pulled if a pull
+    was requested.
+
+    Currently only local repositories are supported.
+    """
     source = ui.expandpath(source)
     other = hg.repository(ui, source)
     if not other.local():
         raise util.Abort(_("incoming doesn't work for remote repositories yet"))
     o = repo.findincoming(other)
     if not o:
         return
     o = other.newer(o)
     for n in o:
         parents = [p for p in other.changelog.parents(n) if p != nullid]
         if opts['no_merges'] and len(parents) == 2:
             continue
         show_changeset(ui, other, changenode=n)
         if opts['patch']:
             prev = (parents and parents[0]) or nullid
             dodiff(ui, ui, other, prev, n)
             ui.write("\n")
 
 def init(ui, dest="."):
-    """create a new repository in the given directory"""
+    """create a new repository in the given directory
+
+    Initialize a new repository in the given directory.  If the given
+    directory does not exist, it is created.
+
+    If no directory is given, the current directory is used.
+    """
     if not os.path.exists(dest):
         os.mkdir(dest)
     hg.repository(ui, dest, create=1)
 
 def locate(ui, repo, *pats, **opts):
-    """locate files matching specific patterns"""
+    """locate files matching specific patterns
+
+    Print all files under Mercurial control whose names match the
+    given patterns.
+
+    This command searches the current directory and its
+    subdirectories.  To search an entire repository, move to the root
+    of the repository.
+
+    If no patterns are given to match, this command prints all file
+    names.
+
+    If you want to feed the output of this command into the "xargs"
+    command, use the "-0" option to both this command and "xargs".
+    This will avoid the problem of "xargs" treating single filenames
+    that contain white space as multiple filenames.
+    """
     end = opts['print0'] and '\0' or '\n'
 
     for src, abs, rel, exact in walk(repo, pats, opts, '(?:.*/|)'):
         if repo.dirstate.state(abs) == '?':
             continue
         if opts['fullpath']:
             ui.write(os.path.join(repo.root, abs), end)
         else:
             ui.write(rel, end)
 
 def log(ui, repo, *pats, **opts):
-    """show revision history of entire repository or files"""
+    """show revision history of entire repository or files
+
+    Print the revision history of the specified files or the entire project.
+
+    By default this command outputs: changeset id and hash, tags,
+    parents, user, date and time, and a summary for each commit. The
+    -v switch adds some more detail, such as changed files, manifest
+    hashes or message signatures.
+    """
     class dui:
         # Implement and delegate some ui protocol.  Save hunks of
         # output for later display in the desired order.
         def __init__(self, ui):
             self.ui = ui
             self.hunk = {}
         def bump(self, rev):
             self.rev = rev
             self.hunk[rev] = []
         def note(self, *args):
             if self.verbose:
                 self.write(*args)
         def status(self, *args):
             if not self.quiet:
                 self.write(*args)
         def write(self, *args):
             self.hunk[self.rev].append(args)
         def debug(self, *args):
             if self.debugflag:
                 self.write(*args)
         def __getattr__(self, key):
             return getattr(self.ui, key)
     cwd = repo.getcwd()
     if not pats and cwd:
         opts['include'] = [os.path.join(cwd, i) for i in opts['include']]
         opts['exclude'] = [os.path.join(cwd, x) for x in opts['exclude']]
     changeiter, getchange = walkchangerevs(ui, repo, (pats and cwd) or '',
                                            pats, opts)
     for st, rev, fns in changeiter:
         if st == 'window':
             du = dui(ui)
         elif st == 'add':
             du.bump(rev)
             changenode = repo.changelog.node(rev)
             parents = [p for p in repo.changelog.parents(changenode)
                        if p != nullid]
             if opts['no_merges'] and len(parents) == 2:
                  continue
             if opts['only_merges'] and len(parents) != 2:
                  continue
 
             br = None
             if opts['keyword']:
                 changes = repo.changelog.read(repo.changelog.node(rev))
                 miss = 0
                 for k in [kw.lower() for kw in opts['keyword']]:
                     if not (k in changes[1].lower() or
                             k in changes[4].lower() or
                             k in " ".join(changes[3][:20]).lower()):
                         miss = 1
                         break
                 if miss:
                     continue
 
             if opts['branch']:
                 br = repo.branchlookup([repo.changelog.node(rev)])
 
             show_changeset(du, repo, rev, brinfo=br)
             if opts['patch']:
                 prev = (parents and parents[0]) or nullid
                 dodiff(du, du, repo, prev, changenode, fns)
                 du.write("\n\n")
         elif st == 'iter':
             for args in du.hunk[rev]:
                 ui.write(*args)
 
 def manifest(ui, repo, rev=None):
-    """output the latest or given revision of the project manifest"""
+    """output the latest or given revision of the project manifest
+
+    Print a list of version controlled files for the given revision.
+
+    The manifest is the list of files being version controlled. If no revision
+    is given then the tip is used.
+    """
     if rev:
         try:
             # assume all revision numbers are for changesets
             n = repo.lookup(rev)
             change = repo.changelog.read(n)
             n = change[0]
         except hg.RepoError:
             n = repo.manifest.lookup(rev)
     else:
         n = repo.manifest.tip()
     m = repo.manifest.read(n)
     mf = repo.manifest.readflags(n)
     files = m.keys()
     files.sort()
 
     for f in files:
         ui.write("%40s %3s %s\n" % (hex(m[f]), mf[f] and "755" or "644", f))
 
 def outgoing(ui, repo, dest="default-push", **opts):
-    """show changesets not found in destination"""
+    """show changesets not found in destination
+
+    Show changesets not found in the specified destination repo or the
+    default push repo. These are the changesets that would be pushed
+    if a push was requested.
+    """
     dest = ui.expandpath(dest)
     other = hg.repository(ui, dest)
     o = repo.findoutgoing(other)
     o = repo.newer(o)
     for n in o:
         parents = [p for p in repo.changelog.parents(n) if p != nullid]
         if opts['no_merges'] and len(parents) == 2:
             continue
         show_changeset(ui, repo, changenode=n)
         if opts['patch']:
             prev = (parents and parents[0]) or nullid
             dodiff(ui, ui, repo, prev, n)
             ui.write("\n")
 
 def parents(ui, repo, rev=None):
-    """show the parents of the working dir or revision"""
+    """show the parents of the working dir or revision
+
+    Print the working directory's parent revisions.
+    """
     if rev:
         p = repo.changelog.parents(repo.lookup(rev))
     else:
         p = repo.dirstate.parents()
 
     for n in p:
         if n != nullid:
             show_changeset(ui, repo, changenode=n)
 
 def paths(ui, search=None):
-    """show definition of symbolic path names"""
+    """show definition of symbolic path names
+
+    Show definition of symbolic path name NAME. If no name is given, show
+    definition of available names.
+
+    Path names are defined in the [paths] section of /etc/mercurial/hgrc
+    and $HOME/.hgrc.  If run inside a repository, .hg/hgrc is used, too.
+    """
     try:
         repo = hg.repository(ui=ui)
     except hg.RepoError:
         pass
 
     if search:
         for name, path in ui.configitems("paths"):
             if name == search:
                 ui.write("%s\n" % path)
                 return
         ui.warn(_("not found!\n"))
         return 1
     else:
         for name, path in ui.configitems("paths"):
             ui.write("%s = %s\n" % (name, path))
 
 def pull(ui, repo, source="default", **opts):
-    """pull changes from the specified source"""
+    """pull changes from the specified source
+
+    Pull changes from a remote repository to a local one.
+
+    This finds all changes from the repository at the specified path
+    or URL and adds them to the local repository. By default, this
+    does not update the copy of the project in the working directory.
+
+    Valid URLs are of the form:
+
+      local/filesystem/path
+      http://[user@]host[:port][/path]
+      https://[user@]host[:port][/path]
+      ssh://[user@]host[:port][/path]
+
+    SSH requires an accessible shell account on the destination machine
+    and a copy of hg in the remote path.  With SSH, paths are relative
+    to the remote user's home directory by default; use two slashes at
+    the start of a path to specify it as relative to the filesystem root.
+    """
     source = ui.expandpath(source)
     ui.status(_('pulling from %s\n') % (source))
 
     if opts['ssh']:
         ui.setconfig("ui", "ssh", opts['ssh'])
     if opts['remotecmd']:
         ui.setconfig("ui", "remotecmd", opts['remotecmd'])
 
     other = hg.repository(ui, source)
     r = repo.pull(other)
     if not r:
         if opts['update']:
             return update(ui, repo)
         else:
             ui.status(_("(run 'hg update' to get a working copy)\n"))
 
     return r
 
 def push(ui, repo, dest="default-push", force=False, ssh=None, remotecmd=None):
-    """push changes to the specified destination"""
+    """push changes to the specified destination
+
+    Push changes from the local repository to the given destination.
+
+    This is the symmetrical operation for pull. It helps to move
+    changes from the current repository to a different one. If the
+    destination is local this is identical to a pull in that directory
+    from the current one.
+
+    By default, push will refuse to run if it detects the result would
+    increase the number of remote heads. This generally indicates the
+    the client has forgotten to sync and merge before pushing.
+
+    Valid URLs are of the form:
+
+      local/filesystem/path
+      ssh://[user@]host[:port][/path]
+
+    SSH requires an accessible shell account on the destination
+    machine and a copy of hg in the remote path.
+    """
     dest = ui.expandpath(dest)
     ui.status('pushing to %s\n' % (dest))
 
     if ssh:
         ui.setconfig("ui", "ssh", ssh)
     if remotecmd:
         ui.setconfig("ui", "remotecmd", remotecmd)
 
     other = hg.repository(ui, dest)
     r = repo.push(other, force)
     return r
 
 def rawcommit(ui, repo, *flist, **rc):
-    "raw commit interface"
+    """raw commit interface
+
+    Lowlevel commit, for use in helper scripts.
+
+    This command is not intended to be used by normal users, as it is
+    primarily useful for importing from other SCMs.
+    """
     if rc['text']:
         ui.warn(_("Warning: -t and --text is deprecated,"
                   " please use -m or --message instead.\n"))
     message = rc['message'] or rc['text']
     if not message and rc['logfile']:
         try:
             message = open(rc['logfile']).read()
         except IOError:
             pass
     if not message and not rc['logfile']:
         raise util.Abort(_("missing commit message"))
 
     files = relpath(repo, list(flist))
     if rc['files']:
         files += open(rc['files']).read().splitlines()
 
     rc['parent'] = map(repo.lookup, rc['parent'])
 
     try:
         repo.rawcommit(files, message, rc['user'], rc['date'], *rc['parent'])
     except ValueError, inst:
         raise util.Abort(str(inst))
 
 def recover(ui, repo):
-    """roll back an interrupted transaction"""
+    """roll back an interrupted transaction
+
+    Recover from an interrupted commit or pull.
+
+    This command tries to fix the repository status after an interrupted
+    operation. It should only be necessary when Mercurial suggests it.
+    """
     repo.recover()
 
 def remove(ui, repo, pat, *pats, **opts):
-    """remove the specified files on the next commit"""
+    """remove the specified files on the next commit
+
+    Schedule the indicated files for removal from the repository.
+
+    This command schedules the files to be removed at the next commit.
+    This only removes files from the current branch, not from the
+    entire project history.  If the files still exist in the working
+    directory, they will be deleted from it.
+    """
     names = []
     def okaytoremove(abs, rel, exact):
         c, a, d, u = repo.changes(files = [abs])
         reason = None
         if c: reason = _('is modified')
         elif a: reason = _('has been marked for add')
         elif u: reason = _('is not managed')
         if reason:
             if exact: ui.warn(_('not removing %s: file %s\n') % (rel, reason))
         else:
             return True
     for src, abs, rel, exact in walk(repo, (pat,) + pats, opts):
         if okaytoremove(abs, rel, exact):
             if ui.verbose or not exact: ui.status(_('removing %s\n') % rel)
             names.append(abs)
     repo.remove(names, unlink=True)
 
 def rename(ui, repo, *pats, **opts):
-    """rename files; equivalent of copy + remove"""
+    """rename files; equivalent of copy + remove
+
+    Mark dest as copies of sources; mark sources for deletion.  If
+    dest is a directory, copies are put in that directory.  If dest is
+    a file, there can only be one source.
+
+    By default, this command copies the contents of files as they
+    stand in the working directory.  If invoked with --after, the
+    operation is recorded, but no copying is performed.
+
+    This command takes effect in the next commit.
+
+    NOTE: This command should be treated as experimental. While it
+    should properly record rename files, this information is not yet
+    fully used by merge, nor fully reported by log.
+    """
     errs, copied = docopy(ui, repo, pats, opts)
     names = []
     for abs, rel, exact in copied:
         if ui.verbose or not exact: ui.status(_('removing %s\n') % rel)
         names.append(abs)
     repo.remove(names, unlink=True)
     return errs
 
 def revert(ui, repo, *names, **opts):
-    """revert modified files or dirs back to their unmodified states"""
+    """revert modified files or dirs back to their unmodified states
+
+    Revert any uncommitted modifications made to the named files or
+    directories.  This restores the contents of the affected files to
+    an unmodified state.
+
+    If a file has been deleted, it is recreated.  If the executable
+    mode of a file was changed, it is reset.
+
+    If a directory is given, all files in that directory and its
+    subdirectories are reverted.
+
+    If no arguments are given, all files in the current directory and
+    its subdirectories are reverted.
+    """
     node = opts['rev'] and repo.lookup(opts['rev']) or \
            repo.dirstate.parents()[0]
     root = os.path.realpath(repo.root)
 
     def trimpath(p):
         p = os.path.realpath(p)
         if p.startswith(root):
             rest = p[len(root):]
             if not rest:
                 return rest
             if p.startswith(os.sep):
                 return rest[1:]
             return p
 
     relnames = map(trimpath, names or [os.getcwd()])
     chosen = {}
 
     def choose(name):
         def body(name):
             for r in relnames:
                 if not name.startswith(r):
                     continue
                 rest = name[len(r):]
                 if not rest:
                     return r, True
                 depth = rest.count(os.sep)
                 if not r:
                     if depth == 0 or not opts['nonrecursive']:
                         return r, True
                 elif rest[0] == os.sep:
                     if depth == 1 or not opts['nonrecursive']:
                         return r, True
             return None, False
         relname, ret = body(name)
         if ret:
             chosen[relname] = 1
         return ret
 
     r = repo.update(node, False, True, choose, False)
     for n in relnames:
         if n not in chosen:
             ui.warn(_('error: no matches for %s\n') % n)
             r = 1
     sys.stdout.flush()
     return r
 
 def root(ui, repo):
-    """print the root (top) of the current working dir"""
+    """print the root (top) of the current working dir
+
+    Print the root directory of the current repository.
+    """
     ui.write(repo.root + "\n")
 
 def serve(ui, repo, **opts):
-    """export the repository via HTTP"""
+    """export the repository via HTTP
+
+    Start a local HTTP repository browser and pull server.
+
+    By default, the server logs accesses to stdout and errors to
+    stderr.  Use the "-A" and "-E" options to log to files.
+    """
 
     if opts["stdio"]:
         fin, fout = sys.stdin, sys.stdout
         sys.stdout = sys.stderr
 
         # Prevent insertion/deletion of CRs
         util.set_binary(fin)
         util.set_binary(fout)
 
         def getarg():
             argline = fin.readline()[:-1]
             arg, l = argline.split()
             val = fin.read(int(l))
             return arg, val
         def respond(v):
             fout.write("%d\n" % len(v))
             fout.write(v)
             fout.flush()
 
         lock = None
 
         while 1:
             cmd = fin.readline()[:-1]
             if cmd == '':
                 return
             if cmd == "heads":
                 h = repo.heads()
                 respond(" ".join(map(hex, h)) + "\n")
             if cmd == "lock":
                 lock = repo.lock()
                 respond("")
             if cmd == "unlock":
                 if lock:
                     lock.release()
                 lock = None
                 respond("")
             elif cmd == "branches":
                 arg, nodes = getarg()
                 nodes = map(bin, nodes.split(" "))
                 r = []
                 for b in repo.branches(nodes):
                     r.append(" ".join(map(hex, b)) + "\n")
                 respond("".join(r))
             elif cmd == "between":
                 arg, pairs = getarg()
                 pairs = [map(bin, p.split("-")) for p in pairs.split(" ")]
                 r = []
                 for b in repo.between(pairs):
                     r.append(" ".join(map(hex, b)) + "\n")
                 respond("".join(r))
             elif cmd == "changegroup":
                 nodes = []
                 arg, roots = getarg()
                 nodes = map(bin, roots.split(" "))
 
                 cg = repo.changegroup(nodes)
                 while 1:
                     d = cg.read(4096)
                     if not d:
                         break
                     fout.write(d)
 
                 fout.flush()
 
             elif cmd == "addchangegroup":
                 if not lock:
                     respond("not locked")
                     continue
                 respond("")
 
                 r = repo.addchangegroup(fin)
                 respond("")
 
     optlist = "name templates style address port ipv6 accesslog errorlog"
     for o in optlist.split():
         if opts[o]:
             ui.setconfig("web", o, opts[o])
 
     try:
         httpd = hgweb.create_server(repo)
     except socket.error, inst:
         raise util.Abort('cannot start server: ' + inst.args[1])
 
     if ui.verbose:
         addr, port = httpd.socket.getsockname()
         if addr == '0.0.0.0':
             addr = socket.gethostname()
         else:
             try:
                 addr = socket.gethostbyaddr(addr)[0]
             except socket.error:
                 pass
         if port != 80:
             ui.status(_('listening at http://%s:%d/\n') % (addr, port))
         else:
             ui.status(_('listening at http://%s/\n') % addr)
     httpd.serve_forever()
 
 def status(ui, repo, *pats, **opts):
-    '''show changed files in the working directory
+    """show changed files in the working directory
 
+    Show changed files in the working directory.  If no names are
+    given, all files are shown.  Otherwise, only files matching the
+    given names are shown.
+
+    The codes used to show the status of files are:
     M = modified
     A = added
     R = removed
     ? = not tracked
-    '''
+    """
 
     cwd = repo.getcwd()
     files, matchfn, anypats = matchpats(repo, cwd, pats, opts)
     (c, a, d, u) = [[util.pathto(cwd, x) for x in n]
                     for n in repo.changes(files=files, match=matchfn)]
 
     changetypes = [(_('modified'), 'M', c),
                    (_('added'), 'A', a),
                    (_('removed'), 'R', d),
                    (_('unknown'), '?', u)]
 
     end = opts['print0'] and '\0' or '\n'
 
     for opt, char, changes in ([ct for ct in changetypes if opts[ct[0]]]
                                or changetypes):
         if opts['no_status']:
             format = "%%s%s" % end
         else:
             format = "%s %%s%s" % (char, end);
 
         for f in changes:
             ui.write(format % f)
 
 def tag(ui, repo, name, rev=None, **opts):
-    """add a tag for the current tip or a given revision"""
+    """add a tag for the current tip or a given revision
+
+    Name a particular revision using <name>.
+
+    Tags are used to name particular revisions of the repository and are
+    very useful to compare different revision, to go back to significant
+    earlier versions or to mark branch points as releases, etc.
+
+    If no revision is given, the tip is used.
+
+    To facilitate version control, distribution, and merging of tags,
+    they are stored as a file named ".hgtags" which is managed
+    similarly to other project files and can be hand-edited if
+    necessary.
+    """
     if opts['text']:
         ui.warn(_("Warning: -t and --text is deprecated,"
                   " please use -m or --message instead.\n"))
     if name == "tip":
         raise util.Abort(_("the name 'tip' is reserved"))
     if rev:
         r = hex(repo.lookup(rev))
     else:
         r = hex(repo.changelog.tip())
 
     if name.find(revrangesep) >= 0:
         raise util.Abort(_("'%s' cannot be used in a tag name") % revrangesep)
 
     if opts['local']:
         repo.opener("localtags", "a").write("%s %s\n" % (r, name))
         return
 
     (c, a, d, u) = repo.changes()
     for x in (c, a, d, u):
         if ".hgtags" in x:
             raise util.Abort(_("working copy of .hgtags is changed "
                                "(please commit .hgtags manually)"))
 
     repo.wfile(".hgtags", "ab").write("%s %s\n" % (r, name))
     if repo.dirstate.state(".hgtags") == '?':
         repo.add([".hgtags"])
 
     message = (opts['message'] or opts['text'] or
                _("Added tag %s for changeset %s") % (name, r))
     try:
         repo.commit([".hgtags"], message, opts['user'], opts['date'])
     except ValueError, inst:
         raise util.Abort(str(inst))
 
 def tags(ui, repo):
-    """list repository tags"""
+    """list repository tags
+
+    List the repository tags.
+
+    This lists both regular and local tags.
+    """
 
     l = repo.tagslist()
     l.reverse()
     for t, n in l:
         try:
             r = "%5d:%s" % (repo.changelog.rev(n), hex(n))
         except KeyError:
             r = "    ?:?"
         ui.write("%-30s %s\n" % (t, r))
 
 def tip(ui, repo):
-    """show the tip revision"""
+    """show the tip revision
+
+    Show the tip revision.
+    """
     n = repo.changelog.tip()
     show_changeset(ui, repo, changenode=n)
 
 def unbundle(ui, repo, fname):
-    """apply a changegroup file"""
+    """apply a changegroup file
+
+    Apply a compressed changegroup file generated by the bundle
+    command.
+    """
     f = urllib.urlopen(fname)
 
     if f.read(4) != "HG10":
         raise util.Abort(_("%s: not a Mercurial bundle file") % fname)
 
     def bzgenerator(f):
         zd = bz2.BZ2Decompressor()
         for chunk in f:
             yield zd.decompress(chunk)
 
     bzgen = bzgenerator(util.filechunkiter(f, 4096))
     repo.addchangegroup(util.chunkbuffer(bzgen))
 
 def undo(ui, repo):
     """undo the last commit or pull
 
     Roll back the last pull or commit transaction on the
     repository, restoring the project to its earlier state.
 
     This command should be used with care. There is only one level of
     undo and there is no redo.
 
     This command is not intended for use on public repositories. Once
     a change is visible for pull by other users, undoing it locally is
     ineffective.
     """
     repo.undo()
 
 def update(ui, repo, node=None, merge=False, clean=False, branch=None):
-    '''update or merge working directory
+    """update or merge working directory
+
+    Update the working directory to the specified revision.
 
     If there are no outstanding changes in the working directory and
     there is a linear relationship between the current version and the
     requested version, the result is the requested version.
 
     Otherwise the result is a merge between the contents of the
     current working directory and the requested version. Files that
     changed between either parent are marked as changed for the next
     commit and a commit must be performed before any further updates
     are allowed.
-    '''
+
+    By default, update will refuse to run if doing so would require
+    merging or discarding local changes.
+    """
     if branch:
         br = repo.branchlookup(branch=branch)
         found = []
         for x in br:
             if branch in br[x]:
                 found.append(x)
         if len(found) > 1:
             ui.warn(_("Found multiple heads for %s\n") % branch)
             for x in found:
                 show_changeset(ui, repo, changenode=x, brinfo=br)
             return 1
         if len(found) == 1:
             node = found[0]
             ui.warn(_("Using head %s for branch %s\n") % (short(node), branch))
         else:
             ui.warn(_("branch %s not found\n") % (branch))
             return 1
     else:
         node = node and repo.lookup(node) or repo.changelog.tip()
     return repo.update(node, allow=merge, force=clean)
 
 def verify(ui, repo):
-    """verify the integrity of the repository"""
+    """verify the integrity of the repository
+
+    Verify the integrity of the current repository.
+
+    This will perform an extensive check of the repository's
+    integrity, validating the hashes and checksums of each entry in
+    the changelog, manifest, and tracked files, as well as the
+    integrity of their crosslinks and indices.
+    """
     return repo.verify()
 
 # Command options and aliases are listed here, alphabetically
 
 table = {
     "^add":
         (add,
-         [('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search'))],
+         [('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns'))],
          "hg add [OPTION]... [FILE]..."),
     "addremove":
         (addremove,
-         [('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search'))],
-         _("hg addremove [OPTION]... [FILE]...")),
+         [('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns'))],
+         "hg addremove [OPTION]... [FILE]..."),
     "^annotate":
         (annotate,
-         [('r', 'rev', '', _('revision')),
+         [('r', 'rev', '', _('annotate the specified revision')),
           ('a', 'text', None, _('treat all files as text')),
-          ('u', 'user', None, _('show user')),
-          ('n', 'number', None, _('show revision number')),
-          ('c', 'changeset', None, _('show changeset')),
-          ('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search'))],
+          ('u', 'user', None, _('list the author')),
+          ('n', 'number', None, _('list the revision number (default)')),
+          ('c', 'changeset', None, _('list the changeset')),
+          ('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns'))],
          _('hg annotate [OPTION]... FILE...')),
     "bundle":
         (bundle,
          [],
          _('hg bundle FILE DEST')),
     "cat":
         (cat,
-         [('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search')),
-          ('o', 'output', "", _('output to file')),
-          ('r', 'rev', '', _('revision'))],
+         [('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns')),
+          ('o', 'output', "", _('print output to file with formatted name')),
+          ('r', 'rev', '', _('print the given revision'))],
          _('hg cat [OPTION]... FILE...')),
     "^clone":
         (clone,
-         [('U', 'noupdate', None, _('skip update after cloning')),
-          ('e', 'ssh', "", _('ssh command')),
+         [('U', 'noupdate', None, _('do not update the new working directory')),
+          ('e', 'ssh', "", _('specify ssh command to use')),
           ('', 'pull', None, _('use pull protocol to copy metadata')),
-          ('', 'remotecmd', "", _('remote hg command'))],
+          ('', 'remotecmd', "", _('specify hg command to run on the remote side'))],
          _('hg clone [OPTION]... SOURCE [DEST]')),
     "^commit|ci":
         (commit,
-         [('A', 'addremove', None, _('run add/remove during commit')),
-          ('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search')),
-          ('m', 'message', "", _('commit message')),
+         [('A', 'addremove', None, _('run addremove during commit')),
+          ('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns')),
+          ('m', 'message', "", _('use <text> as commit message')),
           ('t', 'text', "", _('commit message (deprecated: use -m)')),
-          ('l', 'logfile', "", _('commit message file')),
-          ('d', 'date', "", _('date code')),
-          ('u', 'user', "", _('user'))],
+          ('l', 'logfile', "", _('read the commit message from <file>')),
+          ('d', 'date', "", _('record datecode as commit date')),
+          ('u', 'user', "", _('record user as commiter'))],
          _('hg commit [OPTION]... [FILE]...')),
     "copy|cp": (copy,
-             [('I', 'include', [], _('include path in search')),
-              ('X', 'exclude', [], _('exclude path from search')),
-              ('A', 'after', None, _('record a copy after it has happened')),
-              ('f', 'force', None, _('replace destination if it exists')),
+             [('I', 'include', [], _('include names matching the given patterns')),
+              ('X', 'exclude', [], _('exclude names matching the given patterns')),
+              ('A', 'after', None, _('record a copy that has already occurred')),
+              ('f', 'force', None, _('forcibly copy over an existing managed file')),
               ('p', 'parents', None, _('append source path to dest'))],
              _('hg copy [OPTION]... [SOURCE]... DEST')),
     "debugancestor": (debugancestor, [], _('debugancestor INDEX REV1 REV2')),
     "debugcheckstate": (debugcheckstate, [], _('debugcheckstate')),
     "debugconfig": (debugconfig, [], _('debugconfig')),
     "debugsetparents": (debugsetparents, [], _('debugsetparents REV1 [REV2]')),
     "debugstate": (debugstate, [], _('debugstate')),
     "debugdata": (debugdata, [], _('debugdata FILE REV')),
     "debugindex": (debugindex, [], _('debugindex FILE')),
     "debugindexdot": (debugindexdot, [], _('debugindexdot FILE')),
     "debugrename": (debugrename, [], _('debugrename FILE [REV]')),
     "debugwalk":
         (debugwalk,
-         [('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search'))],
+         [('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns'))],
          _('debugwalk [OPTION]... [FILE]...')),
     "^diff":
         (diff,
          [('r', 'rev', [], _('revision')),
           ('a', 'text', None, _('treat all files as text')),
-          ('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search'))],
+          ('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns'))],
          _('hg diff [-a] [-I] [-X] [-r REV1 [-r REV2]] [FILE]...')),
     "^export":
         (export,
-         [('o', 'output', "", _('output to file')),
+         [('o', 'output', "", _('print output to file with formatted name')),
           ('a', 'text', None, _('treat all files as text'))],
-         _("hg export [-a] [-o OUTFILE] REV...")),
+         "hg export [-a] [-o OUTFILE] REV..."),
     "forget":
         (forget,
-         [('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search'))],
-         _("hg forget [OPTION]... FILE...")),
+         [('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns'))],
+         "hg forget [OPTION]... FILE..."),
     "grep":
         (grep,
          [('0', 'print0', None, _('end fields with NUL')),
-          ('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('include path in search')),
-          ('', 'all', None, _('print all revisions with matches')),
+          ('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('include names matching the given patterns')),
+          ('', 'all', None, _('print all revisions that match')),
           ('i', 'ignore-case', None, _('ignore case when matching')),
-          ('l', 'files-with-matches', None, _('print names of files and revs with matches')),
-          ('n', 'line-number', None, _('print line numbers')),
-          ('r', 'rev', [], _('search in revision rev')),
-          ('u', 'user', None, _('print user who made change'))],
-         _("hg grep [OPTION]... PATTERN [FILE]...")),
+          ('l', 'files-with-matches', None, _('print only filenames and revs that match')),
+          ('n', 'line-number', None, _('print matching line numbers')),
+          ('r', 'rev', [], _('search in given revision range')),
+          ('u', 'user', None, _('print user who committed change'))],
+         "hg grep [OPTION]... PATTERN [FILE]..."),
     "heads":
         (heads,
          [('b', 'branches', None, _('find branch info'))],
          _('hg heads [-b]')),
     "help": (help_, [], _('hg help [COMMAND]')),
     "identify|id": (identify, [], _('hg identify')),
     "import|patch":
         (import_,
-         [('p', 'strip', 1, _('path strip')),
-          ('f', 'force', None, _('skip check for outstanding changes')),
+         [('p', 'strip', 1, _('directory strip option for patch. This has the same\n') +
+                            _('meaning as the corresponding patch option')),
+          ('f', 'force', None, _('skip check for outstanding uncommitted changes')),
           ('b', 'base', "", _('base path'))],
-         _("hg import [-f] [-p NUM] [-b BASE] PATCH...")),
+         "hg import [-f] [-p NUM] [-b BASE] PATCH..."),
     "incoming|in": (incoming,
          [('M', 'no-merges', None, _("do not show merges")),
           ('p', 'patch', None, _('show patch'))],
          _('hg incoming [-p] [SOURCE]')),
     "^init": (init, [], _('hg init [DEST]')),
     "locate":
         (locate,
-         [('r', 'rev', '', _('revision')),
-          ('0', 'print0', None, _('end filenames with NUL')),
-          ('f', 'fullpath', None, _('print complete paths')),
-          ('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search'))],
+         [('r', 'rev', '', _('search the repository as it stood at rev')),
+          ('0', 'print0', None, _('end filenames with NUL, for use with xargs')),
+          ('f', 'fullpath', None, _('print complete paths from the filesystem root')),
+          ('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns'))],
          _('hg locate [OPTION]... [PATTERN]...')),
     "^log|history":
         (log,
-         [('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search')),
+         [('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns')),
           ('b', 'branch', None, _('show branches')),
           ('k', 'keyword', [], _('search for a keyword')),
-          ('r', 'rev', [], _('revision')),
+          ('r', 'rev', [], _('show the specified revision or range')),
           ('M', 'no-merges', None, _("do not show merges")),
           ('m', 'only-merges', None, _("show only merges")),
           ('p', 'patch', None, _('show patch'))],
          _('hg log [-I] [-X] [-r REV]... [-p] [FILE]')),
     "manifest": (manifest, [], _('hg manifest [REV]')),
     "outgoing|out": (outgoing,
          [('M', 'no-merges', None, _("do not show merges")),
           ('p', 'patch', None, _('show patch'))],
          _('hg outgoing [-p] [DEST]')),
     "parents": (parents, [], _('hg parents [REV]')),
     "paths": (paths, [], _('hg paths [NAME]')),
     "^pull":
         (pull,
-         [('u', 'update', None, _('update working directory')),
-          ('e', 'ssh', "", _('ssh command')),
-          ('', 'remotecmd', "", _('remote hg command'))],
+         [('u', 'update', None, _('update the working directory to tip after pull')),
+          ('e', 'ssh', "", _('specify ssh command to use')),
+          ('', 'remotecmd', "", _('specify hg command to run on the remote side'))],
          _('hg pull [-u] [-e FILE] [--remotecmd FILE] [SOURCE]')),
     "^push":
         (push,
          [('f', 'force', None, _('force push')),
-          ('e', 'ssh', "", _('ssh command')),
-          ('', 'remotecmd', "", _('remote hg command'))],
+          ('e', 'ssh', "", _('specify ssh command to use')),
+          ('', 'remotecmd', "", _('specify hg command to run on the remote side'))],
          _('hg push [-f] [-e FILE] [--remotecmd FILE] [DEST]')),
     "rawcommit":
         (rawcommit,
          [('p', 'parent', [], _('parent')),
           ('d', 'date', "", _('date code')),
           ('u', 'user', "", _('user')),
           ('F', 'files', "", _('file list')),
           ('m', 'message', "", _('commit message')),
           ('t', 'text', "", _('commit message (deprecated: use -m)')),
           ('l', 'logfile', "", _('commit message file'))],
          _('hg rawcommit [OPTION]... [FILE]...')),
     "recover": (recover, [], _("hg recover")),
     "^remove|rm": (remove,
-                   [('I', 'include', [], _('include path in search')),
-                    ('X', 'exclude', [], _('exclude path from search'))],
+                   [('I', 'include', [], _('include names matching the given patterns')),
+                    ('X', 'exclude', [], _('exclude names matching the given patterns'))],
                    _("hg remove [OPTION]... FILE...")),
     "rename|mv": (rename,
-                  [('I', 'include', [], _('include path in search')),
-                   ('X', 'exclude', [], _('exclude path from search')),
-                   ('A', 'after', None, _('record a copy after it has happened')),
-                   ('f', 'force', None, _('replace destination if it exists')),
+                  [('I', 'include', [], _('include names matching the given patterns')),
+                   ('X', 'exclude', [], _('exclude names matching the given patterns')),
+                   ('A', 'after', None, _('record a rename that has already occurred')),
+                   ('f', 'force', None, _('forcibly copy over an existing managed file')),
                    ('p', 'parents', None, _('append source path to dest'))],
                   _('hg rename [OPTION]... [SOURCE]... DEST')),
     "^revert":
         (revert,
-         [("n", "nonrecursive", None, _("don't recurse into subdirs")),
-          ("r", "rev", "", _("revision"))],
+         [("n", "nonrecursive", None, _("do not recurse into subdirectories")),
+          ("r", "rev", "", _("revision to revert to"))],
          _("hg revert [-n] [-r REV] [NAME]...")),
     "root": (root, [], _("hg root")),
     "^serve":
         (serve,
-         [('A', 'accesslog', '', _('access log file')),
-          ('E', 'errorlog', '', _('error log file')),
-          ('p', 'port', 0, _('listen port')),
-          ('a', 'address', '', _('interface address')),
-          ('n', 'name', "", _('repository name')),
+         [('A', 'accesslog', '', _('name of access log file to write to')),
+          ('E', 'errorlog', '', _('name of error log file to write to')),
+          ('p', 'port', 0, _('port to use (default: 8000)')),
+          ('a', 'address', '', _('address to use')),
+          ('n', 'name', "", _('name to show in web pages (default: working dir)')),
           ('', 'stdio', None, _('for remote clients')),
-          ('t', 'templates', "", _('template directory')),
-          ('', 'style', "", _('template style')),
+          ('t', 'templates', "", _('web templates to use')),
+          ('', 'style', "", _('template style to use')),
           ('6', 'ipv6', None, _('use IPv6 in addition to IPv4'))],
          _("hg serve [OPTION]...")),
     "^status":
         (status,
          [('m', 'modified', None, _('show only modified files')),
           ('a', 'added', None, _('show only added files')),
           ('r', 'removed', None, _('show only removed files')),
           ('u', 'unknown', None, _('show only unknown (not tracked) files')),
           ('n', 'no-status', None, _('hide status prefix')),
-          ('0', 'print0', None, _('end filenames with NUL')),
-          ('I', 'include', [], _('include path in search')),
-          ('X', 'exclude', [], _('exclude path from search'))],
+          ('0', 'print0', None, _('end filenames with NUL, for use with xargs')),
+          ('I', 'include', [], _('include names matching the given patterns')),
+          ('X', 'exclude', [], _('exclude names matching the given patterns'))],
          _("hg status [OPTION]... [FILE]...")),
     "tag":
         (tag,
          [('l', 'local', None, _('make the tag local')),
-          ('m', 'message', "", _('commit message')),
+          ('m', 'message', "", _('message for tag commit log entry')),
           ('t', 'text', "", _('commit message (deprecated: use -m)')),
-          ('d', 'date', "", _('date code')),
-          ('u', 'user', "", _('user'))],
+          ('d', 'date', "", _('record datecode as commit date')),
+          ('u', 'user', "", _('record user as commiter'))],
          _('hg tag [OPTION]... NAME [REV]')),
     "tags": (tags, [], _('hg tags')),
     "tip": (tip, [], _('hg tip')),
     "unbundle":
         (unbundle,
          [],
          _('hg unbundle FILE')),
     "undo": (undo, [], _('hg undo')),
     "^update|up|checkout|co":
         (update,
          [('b', 'branch', "", _('checkout the head of a specific branch')),
-          ('m', 'merge', None, _('allow merging of conflicts')),
+          ('m', 'merge', None, _('allow merging of branches')),
           ('C', 'clean', None, _('overwrite locally modified files'))],
          _('hg update [-b TAG] [-m] [-C] [REV]')),
     "verify": (verify, [], _('hg verify')),
     "version": (show_version, [], _('hg version')),
 }
 
 globalopts = [
-    ('R', 'repository', "", _('repository root directory')),
-    ('', 'cwd', '', _('change working directory')),
-    ('y', 'noninteractive', None, _('run non-interactively')),
-    ('q', 'quiet', None, _('quiet mode')),
-    ('v', 'verbose', None, _('verbose mode')),
-    ('', 'debug', None, _('debug mode')),
-    ('', 'debugger', None, _('start debugger')),
-    ('', 'traceback', None, _('print traceback on exception')),
-    ('', 'time', None, _('time how long the command takes')),
-    ('', 'profile', None, _('profile')),
-    ('', 'version', None, _('output version information and exit')),
-    ('h', 'help', None, _('display help and exit')),
+    ('R', 'repository', "", _("repository root directory")),
+    ('', 'cwd', '', _("change working directory")),
+    ('y', 'noninteractive', None, _("do not prompt, assume 'yes' for any required answers")),
+    ('q', 'quiet', None, _("suppress output")),
+    ('v', 'verbose', None, _("enable additional output")),
+    ('', 'debug', None, _("enable debugging output")),
+    ('', 'debugger', None, _("start debugger")),
+    ('', 'traceback', None, _("print traceback on exception")),
+    ('', 'time', None, _("time how long the command takes")),
+    ('', 'profile', None, _("print command execution profile")),
+    ('', 'version', None, _("output version information and exit")),
+    ('h', 'help', None, _("display help and exit")),
 ]
 
 norepo = ("clone init version help debugancestor debugconfig debugdata"
           " debugindex debugindexdot paths")
 
 def find(cmd):
     for e in table.keys():
         if re.match("(%s)$" % e, cmd):
             return e, table[e]
 
     raise UnknownCommand(cmd)
 
 class SignalInterrupt(Exception):
     """Exception raised on SIGTERM and SIGHUP."""
 
 def catchterm(*args):
     raise SignalInterrupt
 
 def run():
     sys.exit(dispatch(sys.argv[1:]))
 
 class ParseError(Exception):
     """Exception raised on errors in parsing the command line."""
 
 def parse(args):
     options = {}
     cmdoptions = {}
 
     try:
         args = fancyopts.fancyopts(args, globalopts, options)
     except fancyopts.getopt.GetoptError, inst:
         raise ParseError(None, inst)
 
     if args:
         cmd, args = args[0], args[1:]
         i = find(cmd)[1]
         c = list(i[1])
     else:
         cmd = None
         c = []
 
     # combine global options into local
     for o in globalopts:
         c.append((o[0], o[1], options[o[1]], o[3]))
 
     try:
         args = fancyopts.fancyopts(args, c, cmdoptions)
     except fancyopts.getopt.GetoptError, inst:
         raise ParseError(cmd, inst)
 
     # separate global options back out
     for o in globalopts:
         n = o[1]
         options[n] = cmdoptions[n]
         del cmdoptions[n]
 
     return (cmd, cmd and i[0] or None, args, options, cmdoptions)
 
 def dispatch(args):
     signal.signal(signal.SIGTERM, catchterm)
     try:
         signal.signal(signal.SIGHUP, catchterm)
     except AttributeError:
         pass
 
     u = ui.ui()
     external = []
     for x in u.extensions():
         def on_exception(Exception, inst):
             u.warn(_("*** failed to import extension %s\n") % x[1])
             u.warn("%s\n" % inst)
             if "--traceback" in sys.argv[1:]:
                 traceback.print_exc()
         if x[1]:
             try:
                 mod = imp.load_source(x[0], x[1])
             except Exception, inst:
                 on_exception(Exception, inst)
                 continue
         else:
             def importh(name):
                 mod = __import__(name)
                 components = name.split('.')
                 for comp in components[1:]:
                     mod = getattr(mod, comp)
                 return mod
             try:
                 mod = importh(x[0])
             except Exception, inst:
                 on_exception(Exception, inst)
                 continue
 
         external.append(mod)
     for x in external:
         cmdtable = getattr(x, 'cmdtable', {})
         for t in cmdtable:
             if t in table:
                 u.warn(_("module %s overrides %s\n") % (x.__name__, t))
         table.update(cmdtable)
 
     try:
         cmd, func, args, options, cmdoptions = parse(args)
     except ParseError, inst:
         if inst.args[0]:
             u.warn(_("hg %s: %s\n") % (inst.args[0], inst.args[1]))
             help_(u, inst.args[0])
         else:
             u.warn(_("hg: %s\n") % inst.args[1])
             help_(u, 'shortlist')
         sys.exit(-1)
     except UnknownCommand, inst:
         u.warn(_("hg: unknown command '%s'\n") % inst.args[0])
         help_(u, 'shortlist')
         sys.exit(1)
 
     if options["time"]:
         def get_times():
             t = os.times()
             if t[4] == 0.0: # Windows leaves this as zero, so use time.clock()
                 t = (t[0], t[1], t[2], t[3], time.clock())
             return t
         s = get_times()
         def print_time():
             t = get_times()
             u.warn(_("Time: real %.3f secs (user %.3f+%.3f sys %.3f+%.3f)\n") %
                 (t[4]-s[4], t[0]-s[0], t[2]-s[2], t[1]-s[1], t[3]-s[3]))
         atexit.register(print_time)
 
     u.updateopts(options["verbose"], options["debug"], options["quiet"],
               not options["noninteractive"])
 
     # enter the debugger before command execution
     if options['debugger']:
         pdb.set_trace()
 
     try:
         try:
             if options['help']:
                 help_(u, cmd, options['version'])
                 sys.exit(0)
             elif options['version']:
                 show_version(u)
                 sys.exit(0)
             elif not cmd:
                 help_(u, 'shortlist')
                 sys.exit(0)
 
             if options['cwd']:
                 try:
                     os.chdir(options['cwd'])
                 except OSError, inst:
                     raise util.Abort('%s: %s' %
                                      (options['cwd'], inst.strerror))
 
             if cmd not in norepo.split():
                 path = options["repository"] or ""
                 repo = hg.repository(ui=u, path=path)
                 for x in external:
                     if hasattr(x, 'reposetup'): x.reposetup(u, repo)
                 d = lambda: func(u, repo, *args, **cmdoptions)
             else:
                 d = lambda: func(u, *args, **cmdoptions)
 
             if options['profile']:
                 import hotshot, hotshot.stats
                 prof = hotshot.Profile("hg.prof")
                 r = prof.runcall(d)
                 prof.close()
                 stats = hotshot.stats.load("hg.prof")
                 stats.strip_dirs()
                 stats.sort_stats('time', 'calls')
                 stats.print_stats(40)
                 return r
             else:
                 return d()
         except:
             # enter the debugger when we hit an exception
             if options['debugger']:
                 pdb.post_mortem(sys.exc_info()[2])
             if options['traceback']:
                 traceback.print_exc()
             raise
     except hg.RepoError, inst:
         u.warn(_("abort: "), inst, "!\n")
     except revlog.RevlogError, inst:
         u.warn(_("abort: "), inst, "!\n")
     except SignalInterrupt:
         u.warn(_("killed!\n"))
     except KeyboardInterrupt:
         try:
             u.warn(_("interrupted!\n"))
         except IOError, inst:
             if inst.errno == errno.EPIPE:
                 if u.debugflag:
                     u.warn(_("\nbroken pipe\n"))
             else:
                 raise
     except IOError, inst:
         if hasattr(inst, "code"):
             u.warn(_("abort: %s\n") % inst)
         elif hasattr(inst, "reason"):
             u.warn(_("abort: error: %s\n") % inst.reason[1])
         elif hasattr(inst, "args") and inst[0] == errno.EPIPE:
             if u.debugflag:
                 u.warn(_("broken pipe\n"))
         elif getattr(inst, "strerror", None):
             if getattr(inst, "filename", None):
                 u.warn(_("abort: %s - %s\n") % (inst.strerror, inst.filename))
             else:
                 u.warn(_("abort: %s\n") % inst.strerror)
         else:
             raise
     except OSError, inst:
         if hasattr(inst, "filename"):
             u.warn(_("abort: %s: %s\n") % (inst.strerror, inst.filename))
         else:
             u.warn(_("abort: %s\n") % inst.strerror)
     except util.Abort, inst:
         u.warn(_('abort: '), inst.args[0] % inst.args[1:], '\n')
         sys.exit(1)
     except TypeError, inst:
         # was this an argument error?
         tb = traceback.extract_tb(sys.exc_info()[2])
         if len(tb) > 2: # no
             raise
         u.debug(inst, "\n")
         u.warn(_("%s: invalid arguments\n") % cmd)
         help_(u, cmd)
     except UnknownCommand, inst:
         u.warn(_("hg: unknown command '%s'\n") % inst.args[0])
         help_(u, 'shortlist')
     except SystemExit:
         # don't catch this in the catch-all below
         raise
     except:
         u.warn(_("** unknown exception encountered, details follow\n"))
         u.warn(_("** report bug details to [e-mail]\n"))
         raise
 
     sys.exit(-1)

tests/test-help.out

@@ -1,211 +1,244
 Mercurial Distributed SCM
 
 basic commands (use "hg help" for the full list or option "-v" for details):
 
  add        add the specified files on the next commit
  annotate   show changeset information per file line
  clone      make a copy of an existing repository
  commit     commit the specified files or all outstanding changes
  diff       diff working directory (or selected files)
  export     dump the header and diffs for one or more changesets
  init       create a new repository in the given directory
  log        show revision history of entire repository or files
  pull       pull changes from the specified source
  push       push changes to the specified destination
  remove     remove the specified files on the next commit
  revert     revert modified files or dirs back to their unmodified states
  serve      export the repository via HTTP
  status     show changed files in the working directory
  update     update or merge working directory
  add        add the specified files on the next commit
  annotate   show changeset information per file line
  clone      make a copy of an existing repository
  commit     commit the specified files or all outstanding changes
  diff       diff working directory (or selected files)
  export     dump the header and diffs for one or more changesets
  init       create a new repository in the given directory
  log        show revision history of entire repository or files
  pull       pull changes from the specified source
  push       push changes to the specified destination
  remove     remove the specified files on the next commit
  revert     revert modified files or dirs back to their unmodified states
  serve      export the repository via HTTP
  status     show changed files in the working directory
  update     update or merge working directory
 Mercurial Distributed SCM
 
 list of commands (use "hg help -v" to show aliases and global options):
 
  add         add the specified files on the next commit
  addremove   add all new files, delete all missing files
  annotate    show changeset information per file line
  bundle      create a changegroup file
  cat         output the latest or given revisions of files
  clone       make a copy of an existing repository
  commit      commit the specified files or all outstanding changes
  copy        mark files as copied for the next commit
  diff        diff working directory (or selected files)
  export      dump the header and diffs for one or more changesets
  forget      don't add the specified files on the next commit
  grep        search for a pattern in specified files and revisions
  heads       show current repository heads
  help        show help for a given command or all commands
  identify    print information about the working copy
  import      import an ordered set of patches
  incoming    show new changesets found in source
  init        create a new repository in the given directory
  locate      locate files matching specific patterns
  log         show revision history of entire repository or files
  manifest    output the latest or given revision of the project manifest
  outgoing    show changesets not found in destination
  parents     show the parents of the working dir or revision
  paths       show definition of symbolic path names
  pull        pull changes from the specified source
  push        push changes to the specified destination
  rawcommit   raw commit interface
  recover     roll back an interrupted transaction
  remove      remove the specified files on the next commit
  rename      rename files; equivalent of copy + remove
  revert      revert modified files or dirs back to their unmodified states
  root        print the root (top) of the current working dir
  serve       export the repository via HTTP
  status      show changed files in the working directory
  tag         add a tag for the current tip or a given revision
  tags        list repository tags
  tip         show the tip revision
  unbundle    apply a changegroup file
  undo        undo the last commit or pull
  update      update or merge working directory
  verify      verify the integrity of the repository
  version     output version and copyright information
  add         add the specified files on the next commit
  addremove   add all new files, delete all missing files
  annotate    show changeset information per file line
  bundle      create a changegroup file
  cat         output the latest or given revisions of files
  clone       make a copy of an existing repository
  commit      commit the specified files or all outstanding changes
  copy        mark files as copied for the next commit
  diff        diff working directory (or selected files)
  export      dump the header and diffs for one or more changesets
  forget      don't add the specified files on the next commit
  grep        search for a pattern in specified files and revisions
  heads       show current repository heads
  help        show help for a given command or all commands
  identify    print information about the working copy
  import      import an ordered set of patches
  incoming    show new changesets found in source
  init        create a new repository in the given directory
  locate      locate files matching specific patterns
  log         show revision history of entire repository or files
  manifest    output the latest or given revision of the project manifest
  outgoing    show changesets not found in destination
  parents     show the parents of the working dir or revision
  paths       show definition of symbolic path names
  pull        pull changes from the specified source
  push        push changes to the specified destination
  rawcommit   raw commit interface
  recover     roll back an interrupted transaction
  remove      remove the specified files on the next commit
  rename      rename files; equivalent of copy + remove
  revert      revert modified files or dirs back to their unmodified states
  root        print the root (top) of the current working dir
  serve       export the repository via HTTP
  status      show changed files in the working directory
  tag         add a tag for the current tip or a given revision
  tags        list repository tags
  tip         show the tip revision
  unbundle    apply a changegroup file
  undo        undo the last commit or pull
  update      update or merge working directory
  verify      verify the integrity of the repository
  version     output version and copyright information
 hg add [OPTION]... [FILE]...
 
 add the specified files on the next commit
 
+    Schedule files to be version controlled and added to the repository.
+
+    The files will be added to the repository at the next commit.
+
+    If no names are given, add all files in the current directory and
+    its subdirectories.
+
 options:
 
- -I --include  include path in search
- -X --exclude  exclude path from search
+ -I --include  include names matching the given patterns
+ -X --exclude  exclude names matching the given patterns
 hg add: option --skjdfks not recognized
 hg add [OPTION]... [FILE]...
 
 add the specified files on the next commit
 
+    Schedule files to be version controlled and added to the repository.
+
+    The files will be added to the repository at the next commit.
+
+    If no names are given, add all files in the current directory and
+    its subdirectories.
+
 options:
 
- -I --include  include path in search
- -X --exclude  exclude path from search
+ -I --include  include names matching the given patterns
+ -X --exclude  exclude names matching the given patterns
 hg diff [-a] [-I] [-X] [-r REV1 [-r REV2]] [FILE]...
 
 diff working directory (or selected files)
 
+    Show differences between revisions for the specified files.
+
+    Differences between files are shown using the unified diff format.
+
+    When two revision arguments are given, then changes are shown
+    between those revisions. If only one revision is specified then
+    that revision is compared to the working directory, and, when no
+    revisions are specified, the working directory files are compared
+    to its parent.
+
+    Without the -a option, diff will avoid generating diffs of files
+    it detects as binary. With -a, diff will generate a diff anyway,
+    probably with undesirable results.
+
 options:
 
  -r --rev      revision
  -a --text     treat all files as text
- -I --include  include path in search
- -X --exclude  exclude path from search
+ -I --include  include names matching the given patterns
+ -X --exclude  exclude names matching the given patterns
 hg status [OPTION]... [FILE]...
 
 show changed files in the working directory
 
+    Show changed files in the working directory.  If no names are
+    given, all files are shown.  Otherwise, only files matching the
+    given names are shown.
+
+    The codes used to show the status of files are:
     M = modified
     A = added
     R = removed
     ? = not tracked
 
 options:
 
  -m --modified   show only modified files
  -a --added      show only added files
  -r --removed    show only removed files
  -u --unknown    show only unknown (not tracked) files
  -n --no-status  hide status prefix
- -0 --print0     end filenames with NUL
- -I --include    include path in search
- -X --exclude    exclude path from search
+ -0 --print0     end filenames with NUL, for use with xargs
+ -I --include    include names matching the given patterns
+ -X --exclude    exclude names matching the given patterns
 hg status [OPTION]... [FILE]...
 
 show changed files in the working directory
 hg: unknown command 'foo'
 Mercurial Distributed SCM
 
 basic commands (use "hg help" for the full list or option "-v" for details):
 
  add        add the specified files on the next commit
  annotate   show changeset information per file line
  clone      make a copy of an existing repository
  commit     commit the specified files or all outstanding changes
  diff       diff working directory (or selected files)
  export     dump the header and diffs for one or more changesets
  init       create a new repository in the given directory
  log        show revision history of entire repository or files
  pull       pull changes from the specified source
  push       push changes to the specified destination
  remove     remove the specified files on the next commit
  revert     revert modified files or dirs back to their unmodified states
  serve      export the repository via HTTP
  status     show changed files in the working directory
  update     update or merge working directory
 hg: unknown command 'skjdfks'
 Mercurial Distributed SCM
 
 basic commands (use "hg help" for the full list or option "-v" for details):
 
  add        add the specified files on the next commit
  annotate   show changeset information per file line
  clone      make a copy of an existing repository
  commit     commit the specified files or all outstanding changes
  diff       diff working directory (or selected files)
  export     dump the header and diffs for one or more changesets
  init       create a new repository in the given directory
  log        show revision history of entire repository or files
  pull       pull changes from the specified source
  push       push changes to the specified destination
  remove     remove the specified files on the next commit
  revert     revert modified files or dirs back to their unmodified states
  serve      export the repository via HTTP
  status     show changed files in the working directory
  update     update or merge working directory