dulwich/bin/dulwich

#!/usr/bin/python -u
#
# dulwich - Simple command-line interface to Dulwich
# Copyright (C) 2008-2011 Jelmer Vernooij <jelmer@samba.org>
# vim: expandtab
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 2
# or (at your option) a later version of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA  02110-1301, USA.

"""Simple command-line interface to Dulwich>

This is a very simple command-line wrapper for Dulwich. It is by 
no means intended to be a full-blown Git command-line interface but just 
a way to test Dulwich.
"""

import os
import sys
from getopt import getopt

from dulwich import porcelain
from dulwich.client import get_transport_and_path
from dulwich.errors import ApplyDeltaError
from dulwich.index import Index
from dulwich.pack import Pack, sha_to_hex
from dulwich.patch import write_tree_diff
from dulwich.repo import Repo


def cmd_archive(args):
    opts, args = getopt(args, "", [])
    client, path = get_transport_and_path(args.pop(0))
    location = args.pop(0)
    committish = args.pop(0)
    porcelain.archive(location, committish, outstream=sys.stdout,
        errstream=sys.stderr)


def cmd_add(args):
    opts, args = getopt(args, "", [])

    porcelain.add(".", paths=args)


def cmd_rm(args):
    opts, args = getopt(args, "", [])

    porcelain.rm(".", paths=args)


def cmd_fetch_pack(args):
    opts, args = getopt(args, "", ["all"])
    opts = dict(opts)
    client, path = get_transport_and_path(args.pop(0))
    r = Repo(".")
    if "--all" in opts:
        determine_wants = r.object_store.determine_wants_all
    else:
        determine_wants = lambda x: [y for y in args if not y in r.object_store]
    client.fetch(path, r, determine_wants)


def cmd_fetch(args):
    opts, args = getopt(args, "", [])
    opts = dict(opts)
    client, path = get_transport_and_path(args.pop(0))
    r = Repo(".")
    if "--all" in opts:
        determine_wants = r.object_store.determine_wants_all
    refs = client.fetch(path, r, progress=sys.stdout.write)
    print "Remote refs:"
    for item in refs.iteritems():
        print "%s -> %s" % item


def cmd_log(args):
    opts, args = getopt(args, "", [])
    if len(args) > 0:
        path = args.pop(0)
    else:
        path = "."
    porcelain.log(repo=path, outstream=sys.stdout)


def cmd_diff(args):
    opts, args = getopt(args, "", [])

    if args == []:
        print "Usage: dulwich diff COMMITID"
        sys.exit(1)

    r = Repo(".")
    commit_id = args[0]
    commit = r[commit_id]
    parent_commit = r[commit.parents[0]]
    write_tree_diff(sys.stdout, r.object_store, parent_commit.tree, commit.tree)


def cmd_dump_pack(args):
    opts, args = getopt(args, "", [])

    if args == []:
        print "Usage: dulwich dump-pack FILENAME"
        sys.exit(1)

    basename, _ = os.path.splitext(args[0])
    x = Pack(basename)
    print "Object names checksum: %s" % x.name()
    print "Checksum: %s" % sha_to_hex(x.get_stored_checksum())
    if not x.check():
        print "CHECKSUM DOES NOT MATCH"
    print "Length: %d" % len(x)
    for name in x:
        try:
            print "\t%s" % x[name]
        except KeyError, k:
            print "\t%s: Unable to resolve base %s" % (name, k)
        except ApplyDeltaError, e:
            print "\t%s: Unable to apply delta: %r" % (name, e)


def cmd_dump_index(args):
    opts, args = getopt(args, "", [])

    if args == []:
        print "Usage: dulwich dump-index FILENAME"
        sys.exit(1)

    filename = args[0]
    idx = Index(filename)

    for o in idx:
        print o, idx[o]


def cmd_init(args):
    opts, args = getopt(args, "", ["bare"])
    opts = dict(opts)

    if args == []:
        path = os.getcwd()
    else:
        path = args[0]

    porcelain.init(path, bare=("--bare" in opts))


def cmd_clone(args):
    opts, args = getopt(args, "", ["bare"])
    opts = dict(opts)

    if args == []:
        print "usage: dulwich clone host:path [PATH]"
        sys.exit(1)

    source = args.pop(0)
    if len(args) > 0:
        target = args.pop(0)
    else:
        target = None

    porcelain.clone(source, target, bare=("--bare" in opts))


def cmd_commit(args):
    opts, args = getopt(args, "", ["message"])
    opts = dict(opts)
    porcelain.commit(".", message=opts["--message"])


def cmd_commit_tree(args):
    opts, args = getopt(args, "", ["message"])
    if args == []:
        print "usage: dulwich commit-tree tree"
        sys.exit(1)
    opts = dict(opts)
    porcelain.commit_tree(".", tree=args[0], message=opts["--message"])


def cmd_update_server_info(args):
    porcelain.update_server_info(".")


def cmd_symbolic_ref(args):
    opts, args = getopt(args, "", ["ref-name", "force"])
    if not args:
        print "Usage: dulwich symbolic-ref REF_NAME [--force]"
        sys.exit(1)

    ref_name = args.pop(0)
    porcelain.symbolic_ref(".", ref_name=ref_name, force='--force' in args)


def cmd_show(args):
    opts, args = getopt(args, "", [])
    porcelain.show(".", args)


def cmd_diff_tree(args):
    opts, args = getopt(args, "", [])
    if len(args) < 2:
        print "Usage: dulwich diff-tree OLD-TREE NEW-TREE"
        sys.exit(1)
    porcelain.diff_tree(".", args[0], args[1])


def cmd_rev_list(args):
    opts, args = getopt(args, "", [])
    if len(args) < 1:
        print 'Usage: dulwich rev-list COMMITID...'
        sys.exit(1)
    porcelain.rev_list('.', args)


def cmd_tag(args):
    opts, args = getopt(args, '', [])
    if len(args) < 2:
        print 'Usage: dulwich tag NAME'
        sys.exit(1)
    porcelain.tag('.', args[0])


def cmd_reset(args):
    opts, args = getopt(args, "", ["hard", "soft", "mixed"])
    opts = dict(opts)
    mode = ""
    if "--hard" in opts:
        mode = "hard"
    elif "--soft" in opts:
        mode = "soft"
    elif "--mixed" in opts:
        mode = "mixed"
    porcelain.reset('.', mode=mode, *args)


commands = {
    "add": cmd_add,
    "archive": cmd_archive,
    "clone": cmd_clone,
    "commit": cmd_commit,
    "commit-tree": cmd_commit_tree,
    "diff": cmd_diff,
    "diff-tree": cmd_diff_tree,
    "dump-pack": cmd_dump_pack,
    "dump-index": cmd_dump_index,
    "fetch-pack": cmd_fetch_pack,
    "fetch": cmd_fetch,
    "init": cmd_init,
    "log": cmd_log,
    "reset": cmd_reset,
    "rev-list": cmd_rev_list,
    "rm": cmd_rm,
    "show": cmd_show,
    "symbolic-ref": cmd_symbolic_ref,
    "tag": cmd_tag,
    "update-server-info": cmd_update_server_info,
    }

if len(sys.argv) < 2:
    print "Usage: %s <%s> [OPTIONS...]" % (sys.argv[0], "|".join(commands.keys()))
    sys.exit(1)

cmd = sys.argv[1]
if not cmd in commands:
    print "No such subcommand: %s" % cmd
    sys.exit(1)
commands[cmd](sys.argv[2:])