# commands.py - command processing for mercurial

#

# Copyright 2005 Matt Mackall <mpm@selenic.com>

#

# This software may be used and distributed according to the terms

# of the GNU General Public License, incorporated herein by reference.

import os, re, sys, signal

import fancyopts, ui, hg, util

from demandload import *

demandload(globals(), "mdiff time hgweb traceback random signal errno version")

class UnknownCommand(Exception): pass

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 relfilter(repo, files):

    if os.getcwd() != repo.root:

        p = os.getcwd()[len(repo.root) + 1: ]

        return filterfiles([util.pconvert(p)], files)

    return files

def relpath(repo, args):

    if os.getcwd() != repo.root:

        p = os.getcwd()[len(repo.root) + 1: ]

        return [ util.pconvert(os.path.normpath(os.path.join(p, x))) for x in args ]

    return args

def dodiff(ui, repo, path, files = None, node1 = None, node2 = None):

    def date(c):

        return time.asctime(time.gmtime(float(c[2].split(' ')[0])))

    if node2:

        change = repo.changelog.read(node2)

        mmap2 = repo.manifest.read(change[0])

        (c, a, d) = repo.diffrevs(node1, node2)

        def read(f): return repo.file(f).read(mmap2[f])

        date2 = date(change)

    else:

        date2 = time.asctime()

        (c, a, d, u) = repo.diffdir(path, node1)

        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 hg.hex or hg.short

        r = [hexfunc(node) for node in [node1, node2] if node]

    change = repo.changelog.read(node1)

    mmap = repo.manifest.read(change[0])

    date1 = date(change)

    if files:

        c, a, d = map(lambda x: filterfiles(files, x), (c, a, d))

    for f in c:

        to = None

        if f in mmap:

            to = repo.file(f).read(mmap[f])

        tn = read(f)

        sys.stdout.write(mdiff.unidiff(to, date1, tn, date2, f, r))

    for f in a:

        to = None

        tn = read(f)

        sys.stdout.write(mdiff.unidiff(to, date1, tn, date2, f, r))

    for f in d:

        to = repo.file(f).read(mmap[f])

        tn = None

        sys.stdout.write(mdiff.unidiff(to, date1, tn, date2, f, r))

def show_changeset(ui, repo, rev=0, changenode=None, filelog=None):

    """show a single changeset or file revision"""

    changelog = repo.changelog

    if filelog:

        log = filelog

        filerev = rev

        node = filenode = filelog.node(filerev)

        changerev = filelog.linkrev(filenode)

        changenode = changenode or changelog.node(changerev)

    else:

        log = changelog

        changerev = rev

        if changenode is None:

            changenode = changelog.node(changerev)

        elif not changerev:

            rev = changerev = changelog.rev(changenode)

        node = changenode

    if ui.quiet:

        ui.write("%d:%s\n" % (rev, hg.hex(node)))

        return

    changes = changelog.read(changenode)

    parents = [(log.rev(parent), hg.hex(parent))

               for parent in log.parents(node)

               if ui.debugflag or parent != hg.nullid]

    if not ui.debugflag and len(parents) == 1 and parents[0][0] == rev-1:

        parents = []

    if filelog:

        ui.write("revision:    %d:%s\n" % (filerev, hg.hex(filenode)))

        for parent in parents:

            ui.write("parent:      %d:%s\n" % parent)

        ui.status("changeset:   %d:%s\n" % (changerev, hg.hex(changenode)))

    else:

        ui.write("changeset:   %d:%s\n" % (changerev, hg.hex(changenode)))

        for tag in repo.nodetags(changenode):

            ui.status("tag:         %s\n" % tag)

        for parent in parents:

            ui.write("parent:      %d:%s\n" % parent)

        ui.note("manifest:    %d:%s\n" % (repo.manifest.rev(changes[0]),

                                          hg.hex(changes[0])))

    ui.status("user:        %s\n" % changes[1])

    ui.status("date:        %s\n" % time.asctime(

        time.localtime(float(changes[2].split(' ')[0]))))

    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")

        else:

            ui.status("summary:     %s\n" % description.splitlines()[0])

    ui.status("\n")

def show_version(ui):

    """output version and copyright information"""

    ui.write("Mercurial version %s\n" % version.get_version())

    ui.status(

        "\nCopyright (C) 2005 Matt Mackall <mpm@selenic.com>\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):

    '''show help for a given command or all commands'''

    if cmd:

        try:

            i = find(cmd)

            ui.write("%s\n\n" % i[2])

            if i[1]:

                for s, l, d, c in i[1]:

                    opt=' '

                    if s: opt = opt + '-' + s + ' '

                    if l: opt = opt + '--' + l + ' '

                    if d: opt = opt + '(' + str(d) + ')'

                    ui.write(opt, "\n")

                    if c: ui.write('   %s\n' % c)

                ui.write("\n")

            ui.write(i[0].__doc__, "\n")

        except UnknownCommand:

            ui.warn("hg: unknown command %s\n" % cmd)

        sys.exit(0)

    else:

        if not ui.quiet:

            show_version(ui)

            ui.write('\n')

        ui.write('hg commands:\n\n')

        h = {}

            d = ""

            if e[0].__doc__:

                d = e[0].__doc__.splitlines(0)[0].rstrip()

            h[f] = d

        fns = h.keys()

        fns.sort()

        m = max(map(len, fns))

        for f in fns:

            ui.write(' %-*s   %s\n' % (m, f, h[f]))

# Commands start here, listed alphabetically

def add(ui, repo, file, *files):

    '''add the specified files on the next commit'''

    repo.add(relpath(repo, (file,) + files))

def addremove(ui, repo, *files):

    """add all new files, delete all missing files"""

    if files:

        files = relpath(repo, files)

        d = []

        u = []

        for f in files:

            p = repo.wjoin(f)

            s = repo.dirstate.state(f)

            isfile = os.path.isfile(p)

            if s != 'r' and not isfile:

                d.append(f)

            elif s not in 'nmai' and isfile:

                u.append(f)

    else:

        (c, a, d, u) = repo.diffdir(repo.root)

    repo.add(u)

    repo.remove(d)

def annotate(u, repo, file, *files, **ops):

    """show changeset information per file line"""

    def getnode(rev):

        return hg.short(repo.changelog.node(rev))

    def getname(rev):

        try:

            return bcache[rev]

        except KeyError:

            cl = repo.changelog.read(repo.changelog.node(rev))

            name = cl[1]

            f = name.find('@')

            if f >= 0:

                name = name[:f]

            bcache[rev] = name

            return name

    bcache = {}

    opmap = [['user', getname], ['number', str], ['changeset', getnode]]

    if not ops['user'] and not ops['changeset']:

        ops['number'] = 1

    node = repo.dirstate.parents()[0]

    if ops['revision']:

        node = repo.changelog.lookup(ops['revision'])

    change = repo.changelog.read(node)

    mmap = repo.manifest.read(change[0])

    maxuserlen = 0

    maxchangelen = 0

    for f in relpath(repo, (file,) + files):

        lines = repo.file(f).annotate(mmap[f])

        pieces = []

        for o, f in opmap:

            if ops[o]:

                l = [ f(n) for n,t in lines ]

                m = max(map(len, l))

                pieces.append([ "%*s" % (m, x) for x in l])

        for p,l in zip(zip(*pieces), lines):

            u.write(" ".join(p) + ": " + l[1])

def cat(ui, repo, file, rev = []):

    """output the latest or given revision of a file"""

    r = repo.file(relpath(repo, [file])[0])

    n = r.tip()

    if rev: n = r.lookup(rev)

    sys.stdout.write(r.read(n))

def commit(ui, repo, *files, **opts):

    """commit the specified files or all outstanding changes"""

    text = opts['text']

    if not text and opts['logfile']:

        try: text = open(opts['logfile']).read()

        except IOError: pass

    if opts['addremove']:

        addremove(ui, repo, *files)

    repo.commit(relpath(repo, files), text, opts['user'], opts['date'])

def copy(ui, repo, source, dest):

    """mark a file as copied or renamed for the next commit"""

    return repo.copy(*relpath(repo, (source, dest)))

def debugcheckdirstate(ui, repo):

    parent1, parent2 = repo.dirstate.parents()

    dc = repo.dirstate.dup()

    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:

            print "%s in state %s, but not listed in manifest1" % (f, state)

            errors += 1

        if state in "a" and f in m1:

            print "%s in state %s, but also listed in manifest1" % (f, state)

            errors += 1

        if state in "m" and f not in m1 and f not in m2:

            print "%s in state %s, but not listed in either manifest" % (f, state)

            errors += 1

    for f in m1:

        state = repo.dirstate.state(f)

        if state not in "nrm":

            print "%s in manifest1, but listed as state %s" % (f, state)

            errors += 1

    if errors:

        print ".hg/dirstate inconsistent with current parent's manifest, aborting"

        sys.exit(1)

def debugdumpdirstate(ui, repo):

    dc = repo.dirstate.dup()

    keys = dc.keys()

    keys.sort()

    for file in keys:

        print "%s => %c" % (file, dc[file][0])

def debugindex(ui, file):

    r = hg.revlog(hg.opener(""), file, "")

    print "   rev    offset  length   base linkrev"+\

          " p1           p2           nodeid"

    for i in range(r.count()):

        e = r.index[i]

        print "% 6d % 9d % 7d % 6d % 7d %s.. %s.. %s.." % (

            i, e[0], e[1], e[2], e[3],

            hg.hex(e[4][:5]), hg.hex(e[5][:5]), hg.hex(e[6][:5]))

def debugindexdot(ui, file):

    r = hg.revlog(hg.opener(""), file, "")

    print "digraph G {"

    for i in range(r.count()):

        e = r.index[i]

        print "\t%d -> %d" % (r.rev(e[4]), i)

        if e[5] != hg.nullid:

            print "\t%d -> %d" % (r.rev(e[5]), i)

    print "}"

def diff(ui, repo, *files, **opts):

    """diff working directory (or selected files)"""

    revs = []

    if opts['rev']:

        revs = map(lambda x: repo.lookup(x), opts['rev'])

    if len(revs) > 2:

        self.ui.warn("too many revisions to diff\n")

        sys.exit(1)

    if files:

        files = relpath(repo, files)

    else:

        files = relpath(repo, [""])

    dodiff(ui, repo, os.getcwd(), files, *revs)

def export(ui, repo, changeset):

    """dump the changeset header and diffs for a revision"""

    node = repo.lookup(changeset)

    prev, other = repo.changelog.parents(node)

    change = repo.changelog.read(node)

    print "# HG changeset patch"

    print "# User %s" % change[1]

    print "# Node ID %s" % hg.hex(node)

    print "# Parent  %s" % hg.hex(prev)

    print

    if other != hg.nullid:

        print "# Parent  %s" % hg.hex(other)

    print change[4].rstrip()

    print

    dodiff(ui, repo, "", None, prev, node)

def forget(ui, repo, file, *files):

    """don't add the specified files on the next commit"""

    repo.forget(relpath(repo, (file,) + files))

def heads(ui, repo):

    """show current repository heads"""

    for n in repo.changelog.heads():

        show_changeset(ui, repo, changenode=n)

def history(ui, repo):

    """show the changelog history"""

    for i in range(repo.changelog.count() - 1, -1, -1):

        show_changeset(ui, repo, rev=i)

def identify(ui, repo):

    """print information about the working copy"""

    parents = [p for p in repo.dirstate.parents() if p != hg.nullid]

    if not parents:

        ui.write("unknown\n")

        return

    hexfunc = ui.verbose and hg.hex or hg.short

    (c, a, d, u) = repo.diffdir(repo.root)

    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 ' + '

        output.append(' + '.join(parenttags))

    ui.write("%s\n" % ' '.join(output))

def import_(ui, repo, patch1, *patches, **opts):

    """import an ordered set of patches"""

    try:

        import psyco

        psyco.full()

    except:

        pass

    patches = (patch1,) + patches

    d = opts["base"]

    strip = opts["strip"]

    for patch in patches:

        ui.status("applying %s\n" % patch)

        pf = os.path.join(d, patch)

        text = ""

        for l in file(pf):

            if l[:4] == "--- ": break

            text += l

        # make sure text isn't empty

        if not text: text = "imported patch %s\n" % patch

        f = os.popen("patch -p%d < %s" % (strip, pf))

        files = []

        for l in f.read().splitlines():

            l.rstrip('\r\n');

            if not quiet:

                print l

            if l[:14] == 'patching file ':

                pf = l[14:]

                if pf not in files:

                    files.append(pf)

        patcherr = f.close()

        if patcherr:

            sys.stderr.write("patch failed")

            sys.exit(1)

        if len(files) > 0:

            addremove(ui, repo, *files)

        repo.commit(files, text)

def init(ui, source=None, **opts):

    """create a new repository or copy an existing one"""

    if source:

        paths = {}

        for name, path in ui.configitems("paths"):

            paths[name] = path

        if source in paths: source = paths[source]

        link = 0

        if not source.startswith("http://"):

            d1 = os.stat(os.getcwd()).st_dev

            d2 = os.stat(source).st_dev

            if d1 == d2: link = 1

        if link:

            ui.debug("copying by hardlink\n")

            os.system("cp -al %s/.hg .hg" % source)

            try:

                os.remove(".hg/dirstate")

            except: pass

            repo = hg.repository(ui, ".")

        else:

            repo = hg.repository(ui, ".", create=1)

            other = hg.repository(ui, source)

            cg = repo.getchangegroup(other)

            repo.addchangegroup(cg)

        f = repo.opener("hgrc", "w")

        f.write("[paths]\n")

        f.write("default = %s\n" % source)

        if opts['update']:

            update(ui, repo)

    else:

        repo = hg.repository(ui, ".", create=1)