def datefunc(context, mapping, args):
    if not (1 <= len(args) <= 2):
        raise error.ParseError(_("date expects one or two arguments"))

    date = args[0][0](context, mapping, args[0][1])
    if len(args) == 2:
        fmt = stringify(args[1][0](context, mapping, args[1][1]))
        return util.datestr(date, fmt)
    return util.datestr(date)

	def dict(self):
		status = self.getStatus()
		return {"name": self.name, "status": status, "active": self.isActive(status),
			"done": self.isDone(status), "after": [t.name for t in self.afterSet], "before": [t.name for t in self.beforeSet],
			"output": self.getOutput(), "result": "%s" % self.getResult(),
			"started": util.datestr(self.started) if self.started else None,
			"finished": util.datestr(self.finished) if self.finished else None,
			"duration": util.timediffstr(self.started, self.finished if self.finished else time.time()) if self.started else None,
			}

def date(context, mapping, args):
    """:date(date[, fmt]): Format a date. See :hg:`help dates` for formatting
    strings."""
    if not (1 <= len(args) <= 2):
        # i18n: "date" is a keyword
        raise error.ParseError(_("date expects one or two arguments"))

    date = args[0][0](context, mapping, args[0][1])
    if len(args) == 2:
        fmt = stringify(args[1][0](context, mapping, args[1][1]))
        return util.datestr(date, fmt)
    return util.datestr(date)

def unidiff(a, ad, b, bd, fn1, fn2, opts=defaultopts):
    def datetag(date, fn=None):
        if not opts.git and not opts.nodates:
            return '\t%s\n' % date
        if fn and ' ' in fn:
            return '\t\n'
        return '\n'

    if not a and not b:
        return ""

    if opts.noprefix:
        aprefix = bprefix = ''
    else:
        aprefix = 'a/'
        bprefix = 'b/'

    epoch = util.datestr((0, 0))

    fn1 = util.pconvert(fn1)
    fn2 = util.pconvert(fn2)

    if not opts.text and (util.binary(a) or util.binary(b)):
        if a and b and len(a) == len(b) and a == b:
            return ""
        l = ['Binary file %s has changed\n' % fn1]
    elif not a:
        b = splitnewlines(b)
        if a is None:
            l1 = '--- /dev/null%s' % datetag(epoch)
        else:
            l1 = "--- %s%s%s" % (aprefix, fn1, datetag(ad, fn1))
        l2 = "+++ %s%s" % (bprefix + fn2, datetag(bd, fn2))
        l3 = "@@ -0,0 +1,%d @@\n" % len(b)
        l = [l1, l2, l3] + ["+" + e for e in b]
    elif not b:
        a = splitnewlines(a)
        l1 = "--- %s%s%s" % (aprefix, fn1, datetag(ad, fn1))
        if b is None:
            l2 = '+++ /dev/null%s' % datetag(epoch)
        else:
            l2 = "+++ %s%s%s" % (bprefix, fn2, datetag(bd, fn2))
        l3 = "@@ -1,%d +0,0 @@\n" % len(a)
        l = [l1, l2, l3] + ["-" + e for e in a]
    else:
        al = splitnewlines(a)
        bl = splitnewlines(b)
        l = list(_unidiff(a, b, al, bl, opts=opts))
        if not l:
            return ""

        l.insert(0, "--- %s%s%s" % (aprefix, fn1, datetag(ad, fn1)))
        l.insert(1, "+++ %s%s%s" % (bprefix, fn2, datetag(bd, fn2)))

    for ln in xrange(len(l)):
        if l[ln][-1] != '\n':
            l[ln] += "\n\ No newline at end of file\n"

    return "".join(l)

def date(context, mapping, args):
    """:date(date[, fmt]): Format a date. See :hg:`help dates` for formatting
    strings."""
    if not (1 <= len(args) <= 2):
        # i18n: "date" is a keyword
        raise error.ParseError(_("date expects one or two arguments"))

    date = args[0][0](context, mapping, args[0][1])
    fmt = None
    if len(args) == 2:
        fmt = stringify(args[1][0](context, mapping, args[1][1]))
    try:
        if fmt is None:
            return util.datestr(date)
        else:
            return util.datestr(date, fmt)
    except (TypeError, ValueError):
        # i18n: "date" is a keyword
        raise error.ParseError(_("date expects a date information"))

def unidiff(a, ad, b, bd, fn1, fn2, r=None, opts=defaultopts):
    def datetag(date, addtab=True):
        if not opts.git and not opts.nodates:
            return '\t%s\n' % date
        if addtab and ' ' in fn1:
            return '\t\n'
        return '\n'

    if not a and not b: return ""
    epoch = util.datestr((0, 0))

    if not opts.text and (util.binary(a) or util.binary(b)):
        def h(v):
            # md5 is used instead of sha1 because md5 is supposedly faster
            return md5.new(v).digest()
        if a and b and len(a) == len(b) and h(a) == h(b):
            return ""
        l = ['Binary file %s has changed\n' % fn1]
    elif not a:
        b = splitnewlines(b)
        if a is None:
            l1 = '--- /dev/null%s' % datetag(epoch, False)
        else:
            l1 = "--- %s%s" % ("a/" + fn1, datetag(ad))
        l2 = "+++ %s%s" % ("b/" + fn2, datetag(bd))
        l3 = "@@ -0,0 +1,%d @@\n" % len(b)
        l = [l1, l2, l3] + ["+" + e for e in b]
    elif not b:
        a = splitnewlines(a)
        l1 = "--- %s%s" % ("a/" + fn1, datetag(ad))
        if b is None:
            l2 = '+++ /dev/null%s' % datetag(epoch, False)
        else:
            l2 = "+++ %s%s" % ("b/" + fn2, datetag(bd))
        l3 = "@@ -1,%d +0,0 @@\n" % len(a)
        l = [l1, l2, l3] + ["-" + e for e in a]
    else:
        al = splitnewlines(a)
        bl = splitnewlines(b)
        l = list(bunidiff(a, b, al, bl, "a/" + fn1, "b/" + fn2, opts=opts))
        if not l: return ""
        # difflib uses a space, rather than a tab
        l[0] = "%s%s" % (l[0][:-2], datetag(ad))
        l[1] = "%s%s" % (l[1][:-2], datetag(bd))

    for ln in xrange(len(l)):
        if l[ln][-1] != '\n':
            l[ln] += "\n\ No newline at end of file\n"

    if r:
        l.insert(0, "diff %s %s\n" %
                    (' '.join(["-r %s" % rev for rev in r]), fn1))

    return "".join(l)

def unidiff(a, ad, b, bd, fn1, fn2, r=None, opts=defaultopts):
    def datetag(date, addtab=True):
        if not opts.git and not opts.nodates:
            return '\t%s\n' % date
        if addtab and ' ' in fn1:
            return '\t\n'
        return '\n'

    if not a and not b:
        return ""
    epoch = util.datestr((0, 0))

    if not opts.text and (util.binary(a) or util.binary(b)):
        if a and b and len(a) == len(b) and a == b:
            return ""
        l = ['Binary file %s has changed\n' % fn1]
    elif not a:
        b = splitnewlines(b)
        if a is None:
            l1 = '--- /dev/null%s' % datetag(epoch, False)
        else:
            l1 = "--- %s%s" % ("a/" + fn1, datetag(ad))
        l2 = "+++ %s%s" % ("b/" + fn2, datetag(bd))
        l3 = "@@ -0,0 +1,%d @@\n" % len(b)
        l = [l1, l2, l3] + ["+" + e for e in b]
    elif not b:
        a = splitnewlines(a)
        l1 = "--- %s%s" % ("a/" + fn1, datetag(ad))
        if b is None:
            l2 = '+++ /dev/null%s' % datetag(epoch, False)
        else:
            l2 = "+++ %s%s" % ("b/" + fn2, datetag(bd))
        l3 = "@@ -1,%d +0,0 @@\n" % len(a)
        l = [l1, l2, l3] + ["-" + e for e in a]
    else:
        al = splitnewlines(a)
        bl = splitnewlines(b)
        l = list(_unidiff(a, b, al, bl, opts=opts))
        if not l:
            return ""

        l.insert(0, "--- a/%s%s" % (fn1, datetag(ad)))
        l.insert(1, "+++ b/%s%s" % (fn2, datetag(bd)))

    for ln in xrange(len(l)):
        if l[ln][-1] != '\n':
            l[ln] += "\n\ No newline at end of file\n"

    if r:
        l.insert(0, diffline(r, fn1, fn2, opts))

    return "".join(l)

 def commit(self, text, user, date):
     if self._gitmissing():
         raise util.Abort(_("subrepo %s is missing") % self._relpath)
     cmd = ["commit", "-a", "-m", text]
     env = os.environ.copy()
     if user:
         cmd += ["--author", user]
     if date:
         # git's date parser silently ignores when seconds < 1e9
         # convert to ISO8601
         env["GIT_AUTHOR_DATE"] = util.datestr(date, "%Y-%m-%dT%H:%M:%S %1%2")
     self._gitcommand(cmd, env=env)
     # make sure commit works otherwise HEAD might not exist under certain
     # circumstances
     return self._gitstate()

def finddate(ui, repo, date):
    """Find the tipmost changeset that matches the given date spec"""
    df = util.matchdate(date)
    get = util.cachefunc(lambda r: repo.changectx(r).changeset())
    changeiter, matchfn = walkchangerevs(ui, repo, [], get, {'rev':None})
    results = {}
    for st, rev, fns in changeiter:
        if st == 'add':
            d = get(rev)[2]
            if df(d[0]):
                results[rev] = d
        elif st == 'iter':
            if rev in results:
                ui.status("Found revision %s from %s\n" %
                          (rev, util.datestr(results[rev])))
                return str(rev)

    raise util.Abort(_("revision matching date not found"))

def finddate(ui, repo, date):
    """Find the tipmost changeset that matches the given date spec"""

    df = util.matchdate(date)
    m = matchall(repo)
    results = {}

    def prep(ctx, fns):
        d = ctx.date()
        if df(d[0]):
            results[ctx.rev()] = d

    for ctx in walkchangerevs(repo, m, {'rev': None}, prep):
        rev = ctx.rev()
        if rev in results:
            ui.status(_("Found revision %s from %s\n") %
                      (rev, util.datestr(results[rev])))
            return str(rev)

    raise util.Abort(_("revision matching date not found"))

    '''Treat the text as path and strip a directory level, if possible.'''
    dir = os.path.dirname(text)
    if dir == "":
        return os.path.basename(text)
    else:
        return dir

def nonempty(str):
    return str or "(none)"

filters = {
    "addbreaks": nl2br,
    "basename": os.path.basename,
    "stripdir": stripdir,
    "age": age,
    "date": lambda x: util.datestr(x),
    "domain": domain,
    "email": util.email,
    "escape": lambda x: cgi.escape(x, True),
    "fill68": lambda x: fill(x, width=68),
    "fill76": lambda x: fill(x, width=76),
    "firstline": firstline,
    "tabindent": lambda x: indent(x, '\t'),
    "hgdate": lambda x: "%d %d" % x,
    "isodate": lambda x: util.datestr(x, '%Y-%m-%d %H:%M %1%2'),
    "isodatesec": lambda x: util.datestr(x, '%Y-%m-%d %H:%M:%S %1%2'),
    "json": json,
    "jsonescape": jsonescape,
    "localdate": lambda x: (x[0], util.makedate()[1]),
    "nonempty": nonempty,
    "obfuscate": obfuscate,

def diff(repo, node1=None, node2=None, match=None, changes=None, opts=None):
    '''yields diff of changes to files between two nodes, or node and
    working directory.

    if node1 is None, use first dirstate parent instead.
    if node2 is None, compare node1 with working directory.'''

    if opts is None:
        opts = mdiff.defaultopts

    if not node1:
        node1 = repo.dirstate.parents()[0]

    def lrugetfilectx():
        cache = {}
        order = []
        def getfilectx(f, ctx):
            fctx = ctx.filectx(f, filelog=cache.get(f))
            if f not in cache:
                if len(cache) > 20:
                    del cache[order.pop(0)]
                cache[f] = fctx._filelog
            else:
                order.remove(f)
            order.append(f)
            return fctx
        return getfilectx
    getfilectx = lrugetfilectx()

    ctx1 = repo[node1]
    ctx2 = repo[node2]

    if not changes:
        changes = repo.status(ctx1, ctx2, match=match)
    modified, added, removed = changes[:3]

    if not modified and not added and not removed:
        return

    date1 = util.datestr(ctx1.date())
    man1 = ctx1.manifest()

    if repo.ui.quiet:
        r = None
    else:
        hexfunc = repo.ui.debugflag and hex or short
        r = [hexfunc(node) for node in [node1, node2] if node]

    if opts.git:
        copy, diverge = copies.copies(repo, ctx1, ctx2, repo[nullid])
        copy = copy.copy()
        for k, v in copy.items():
            copy[v] = k

    gone = set()
    gitmode = {'l': '120000', 'x': '100755', '': '100644'}

    for f in sorted(modified + added + removed):
        to = None
        tn = None
        dodiff = True
        header = []
        if f in man1:
            to = getfilectx(f, ctx1).data()
        if f not in removed:
            tn = getfilectx(f, ctx2).data()
        a, b = f, f
        if opts.git:
            if f in added:
                mode = gitmode[ctx2.flags(f)]
                if f in copy:
                    a = copy[f]
                    omode = gitmode[man1.flags(a)]
                    _addmodehdr(header, omode, mode)
                    if a in removed and a not in gone:
                        op = 'rename'
                        gone.add(a)
                    else:
                        op = 'copy'
                    header.append('%s from %s\n' % (op, a))
                    header.append('%s to %s\n' % (op, f))
                    to = getfilectx(a, ctx1).data()
                else:
                    header.append('new file mode %s\n' % mode)
                if util.binary(tn):
                    dodiff = 'binary'
            elif f in removed:
                # have we already reported a copy above?
                if f in copy and copy[f] in added and copy[copy[f]] == f:
                    dodiff = False
                else:
                    header.append('deleted file mode %s\n' %
                                  gitmode[man1.flags(f)])
            else:
                omode = gitmode[man1.flags(f)]
                nmode = gitmode[ctx2.flags(f)]
                _addmodehdr(header, omode, nmode)
                if util.binary(to) or util.binary(tn):
                    dodiff = 'binary'
            r = None
#.........这里部分代码省略.........

def rfc822date(text):
    """:rfc822date: Date. Returns a date using the same format used in email
    headers: "Tue, 18 Aug 2009 13:00:13 +0200".
    """
    return util.datestr(text, "%a, %d %b %Y %H:%M:%S %1%2")

def datefilter(text):
    """:date: Date. Returns a date in a Unix date format, including the
    timezone: "Mon Sep 04 15:13:13 2006 0700".
    """
    return util.datestr(text)

def isodatesec(text):
    """:isodatesec: Date. Returns the date in ISO 8601 format, including
    seconds: "2009-08-18 13:00:13 +0200". See also the rfc3339date
    filter.
    """
    return util.datestr(text, '%Y-%m-%d %H:%M:%S %1%2')

def rfc3339date(text):
    """:rfc3339date: Date. Returns a date using the Internet date format
    specified in RFC 3339: "2009-08-18T13:00:13+02:00".
    """
    return util.datestr(text, "%Y-%m-%dT%H:%M:%S%1:%2")

def isodate(text):
    """:isodate: Date. Returns the date in ISO 8601 format: "2009-08-18 13:00
    +0200".
    """
    return util.datestr(text, '%Y-%m-%d %H:%M %1%2')

def diff(repo, node1=None, node2=None, files=None, match=util.always,
         fp=None, changes=None, opts=None):
    '''print diff of changes to files between two nodes, or node and
    working directory.

    if node1 is None, use first dirstate parent instead.
    if node2 is None, compare node1 with working directory.'''

    if opts is None:
        opts = mdiff.defaultopts
    if fp is None:
        fp = repo.ui

    if not node1:
        node1 = repo.dirstate.parents()[0]

    ccache = {}
    def getctx(r):
        if r not in ccache:
            ccache[r] = context.changectx(repo, r)
        return ccache[r]

    flcache = {}
    def getfilectx(f, ctx):
        flctx = ctx.filectx(f, filelog=flcache.get(f))
        if f not in flcache:
            flcache[f] = flctx._filelog
        return flctx

    # reading the data for node1 early allows it to play nicely
    # with repo.status and the revlog cache.
    ctx1 = context.changectx(repo, node1)
    # force manifest reading
    man1 = ctx1.manifest()
    date1 = util.datestr(ctx1.date())

    if not changes:
        changes = repo.status(node1, node2, files, match=match)[:5]
    modified, added, removed, deleted, unknown = changes

    if not modified and not added and not removed:
        return

    if node2:
        ctx2 = context.changectx(repo, node2)
        execf2 = ctx2.manifest().execf
        linkf2 = ctx2.manifest().linkf
    else:
        ctx2 = context.workingctx(repo)
        execf2 = util.execfunc(repo.root, None)
        linkf2 = util.linkfunc(repo.root, None)
        if execf2 is None:
            mc = ctx2.parents()[0].manifest().copy()
            execf2 = mc.execf
            linkf2 = mc.linkf

    if repo.ui.quiet:
        r = None
    else:
        hexfunc = repo.ui.debugflag and hex or short
        r = [hexfunc(node) for node in [node1, node2] if node]

    if opts.git:
        copy, diverge = copies.copies(repo, ctx1, ctx2, repo.changectx(nullid))
        for k, v in copy.items():
            copy[v] = k

    all = modified + added + removed
    all.sort()
    gone = {}

    for f in all:
        to = None
        tn = None
        dodiff = True
        header = []
        if f in man1:
            to = getfilectx(f, ctx1).data()
        if f not in removed:
            tn = getfilectx(f, ctx2).data()
        a, b = f, f
        if opts.git:
            def gitmode(x, l):
                return l and '120000' or (x and '100755' or '100644')
            def addmodehdr(header, omode, nmode):
                if omode != nmode:
                    header.append('old mode %s\n' % omode)
                    header.append('new mode %s\n' % nmode)

            if f in added:
                mode = gitmode(execf2(f), linkf2(f))
                if f in copy:
                    a = copy[f]
                    omode = gitmode(man1.execf(a), man1.linkf(a))
                    addmodehdr(header, omode, mode)
                    if a in removed and a not in gone:
                        op = 'rename'
                        gone[a] = 1
                    else:
                        op = 'copy'
#.........这里部分代码省略.........

    def _show(self, rev, changenode, copies, props):
        '''show a single changeset or file revision'''
        log = self.repo.changelog
        if changenode is None:
            changenode = log.node(rev)
        elif not rev:
            rev = log.rev(changenode)

        if self.ui.quiet:
            self.ui.write("%d:%s\n" % (rev, short(changenode)))
            return

        changes = log.read(changenode)
        date = util.datestr(changes[2])
        extra = changes[5]
        branch = extra.get("branch")

        hexfunc = self.ui.debugflag and hex or short

        parents = [(p, hexfunc(log.node(p)))
                   for p in self._meaningful_parentrevs(log, rev)]

        self.ui.write(_("changeset:   %d:%s\n") % (rev, hexfunc(changenode)))

        # don't show the default branch name
        if branch != 'default':
            branch = util.tolocal(branch)
            self.ui.write(_("branch:      %s\n") % branch)
        for tag in self.repo.nodetags(changenode):
            self.ui.write(_("tag:         %s\n") % tag)
        for parent in parents:
            self.ui.write(_("parent:      %d:%s\n") % parent)

        if self.ui.debugflag:
            self.ui.write(_("manifest:    %d:%s\n") %
                          (self.repo.manifest.rev(changes[0]), hex(changes[0])))
        self.ui.write(_("user:        %s\n") % changes[1])
        self.ui.write(_("date:        %s\n") % date)

        if self.ui.debugflag:
            files = self.repo.status(log.parents(changenode)[0], changenode)[:3]
            for key, value in zip([_("files:"), _("files+:"), _("files-:")],
                                  files):
                if value:
                    self.ui.write("%-12s %s\n" % (key, " ".join(value)))
        elif changes[3] and self.ui.verbose:
            self.ui.write(_("files:       %s\n") % " ".join(changes[3]))
        if copies and self.ui.verbose:
            copies = ['%s (%s)' % c for c in copies]
            self.ui.write(_("copies:      %s\n") % ' '.join(copies))

        if extra and self.ui.debugflag:
            extraitems = extra.items()
            extraitems.sort()
            for key, value in extraitems:
                self.ui.write(_("extra:       %s=%s\n")
                              % (key, value.encode('string_escape')))

        description = changes[4].strip()
        if description:
            if self.ui.verbose:
                self.ui.write(_("description:\n"))
                self.ui.write(description)
                self.ui.write("\n\n")
            else:
                self.ui.write(_("summary:     %s\n") %
                              description.splitlines()[0])
        self.ui.write("\n")

        self.showpatch(changenode)

def diff(repo, node1=None, node2=None, match=None, changes=None, opts=None):
    """yields diff of changes to files between two nodes, or node and
    working directory.

    if node1 is None, use first dirstate parent instead.
    if node2 is None, compare node1 with working directory."""

    if opts is None:
        opts = mdiff.defaultopts

    if not node1:
        node1 = repo.dirstate.parents()[0]

    flcache = {}

    def getfilectx(f, ctx):
        flctx = ctx.filectx(f, filelog=flcache.get(f))
        if f not in flcache:
            flcache[f] = flctx._filelog
        return flctx

    ctx1 = repo[node1]
    ctx2 = repo[node2]

    if not changes:
        changes = repo.status(ctx1, ctx2, match=match)
    modified, added, removed = changes[:3]

    if not modified and not added and not removed:
        return

    date1 = util.datestr(ctx1.date())
    man1 = ctx1.manifest()

    if repo.ui.quiet:
        r = None
    else:
        hexfunc = repo.ui.debugflag and hex or short
        r = [hexfunc(node) for node in [node1, node2] if node]

    if opts.git:
        copy, diverge = copies.copies(repo, ctx1, ctx2, repo[nullid])
        for k, v in copy.items():
            copy[v] = k

    gone = {}
    gitmode = {"l": "120000", "x": "100755", "": "100644"}

    for f in util.sort(modified + added + removed):
        to = None
        tn = None
        dodiff = True
        header = []
        if f in man1:
            to = getfilectx(f, ctx1).data()
        if f not in removed:
            tn = getfilectx(f, ctx2).data()
        a, b = f, f
        if opts.git:
            if f in added:
                mode = gitmode[ctx2.flags(f)]
                if f in copy:
                    a = copy[f]
                    omode = gitmode[man1.flags(a)]
                    _addmodehdr(header, omode, mode)
                    if a in removed and a not in gone:
                        op = "rename"
                        gone[a] = 1
                    else:
                        op = "copy"
                    header.append("%s from %s\n" % (op, a))
                    header.append("%s to %s\n" % (op, f))
                    to = getfilectx(a, ctx1).data()
                else:
                    header.append("new file mode %s\n" % mode)
                if util.binary(tn):
                    dodiff = "binary"
            elif f in removed:
                # have we already reported a copy above?
                if f in copy and copy[f] in added and copy[copy[f]] == f:
                    dodiff = False
                else:
                    header.append("deleted file mode %s\n" % gitmode[man1.flags(f)])
            else:
                omode = gitmode[man1.flags(f)]
                nmode = gitmode[ctx2.flags(f)]
                _addmodehdr(header, omode, nmode)
                if util.binary(to) or util.binary(tn):
                    dodiff = "binary"
            r = None
            header.insert(0, mdiff.diffline(r, a, b, opts))
        if dodiff:
            if dodiff == "binary":
                text = b85diff(to, tn)
            else:
                text = mdiff.unidiff(
                    to,
                    date1,
                    # ctx2 date may be dynamic
                    tn,
#.........这里部分代码省略.........