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|
# Copyright (C) 2006-2009 Canonical Ltd
# Authors: Robert Collins <robert.collins@canonical.com>
# Jelmer Vernooij <jelmer@samba.org>
# John Carr <john.carr@unrouted.co.uk>
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""A GIT branch and repository format implementation for bzr."""
import os
import sys
import bzrlib
import bzrlib.api
from info import (
bzr_compatible_versions,
bzr_plugin_version as version_info,
dulwich_minimum_version,
)
if version_info[3] == 'final':
version_string = '%d.%d.%d' % version_info[:3]
else:
version_string = '%d.%d.%d%s%d' % version_info
__version__ = version_string
bzrlib.api.require_any_api(bzrlib, bzr_compatible_versions)
try:
from bzrlib.i18n import load_plugin_translations
except ImportError: # No translations for bzr < 2.5
gettext = lambda x: x
else:
translation = load_plugin_translations("bzr-git")
gettext = translation.gettext
from bzrlib import (
errors as bzr_errors,
trace,
)
from bzrlib.controldir import (
ControlDirFormat,
Prober,
format_registry,
network_format_registry as controldir_network_format_registry,
)
from bzrlib.foreign import (
foreign_vcs_registry,
)
from bzrlib.help_topics import (
topic_registry,
)
from bzrlib.transport import (
register_lazy_transport,
register_transport_proto,
)
from bzrlib.commands import (
plugin_cmds,
)
from bzrlib.send import (
format_registry as send_format_registry,
)
if getattr(sys, "frozen", None):
# allow import additional libs from ./_lib for bzr.exe only
sys.path.append(os.path.normpath(
os.path.join(os.path.dirname(__file__), '_lib')))
def import_dulwich():
try:
from dulwich import __version__ as dulwich_version
except ImportError:
raise bzr_errors.DependencyNotPresent("dulwich",
"bzr-git: Please install dulwich, https://launchpad.net/dulwich")
else:
if dulwich_version < dulwich_minimum_version:
raise bzr_errors.DependencyNotPresent("dulwich",
"bzr-git: Dulwich is too old; at least %d.%d.%d is required" %
dulwich_minimum_version)
_versions_checked = False
def lazy_check_versions():
global _versions_checked
if _versions_checked:
return
import_dulwich()
_versions_checked = True
format_registry.register_lazy('git',
"bzrlib.plugins.git.dir", "LocalGitControlDirFormat",
help='GIT repository.', native=False, experimental=False,
)
format_registry.register_lazy('git-bare',
"bzrlib.plugins.git.dir", "BareLocalGitControlDirFormat",
help='Bare GIT repository (no working tree).', native=False,
experimental=False,
)
from bzrlib.revisionspec import revspec_registry
revspec_registry.register_lazy("git:", "bzrlib.plugins.git.revspec",
"RevisionSpec_git")
from bzrlib.revisionspec import dwim_revspecs, RevisionSpec_dwim
if getattr(RevisionSpec_dwim, "append_possible_lazy_revspec", None):
RevisionSpec_dwim.append_possible_lazy_revspec(
"bzrlib.plugins.git.revspec", "RevisionSpec_git")
else: # bzr < 2.4
from bzrlib.plugins.git.revspec import RevisionSpec_git
dwim_revspecs.append(RevisionSpec_git)
class LocalGitProber(Prober):
def probe_transport(self, transport):
try:
external_url = transport.external_url()
except bzr_errors.InProcessTransport:
raise bzr_errors.NotBranchError(path=transport.base)
if (external_url.startswith("http:") or
external_url.startswith("https:")):
# Already handled by RemoteGitProber
raise bzr_errors.NotBranchError(path=transport.base)
from bzrlib import urlutils
if urlutils.split(transport.base)[1] == ".git":
raise bzr_errors.NotBranchError(path=transport.base)
if not transport.has_any(['objects', '.git/objects']):
raise bzr_errors.NotBranchError(path=transport.base)
lazy_check_versions()
from bzrlib.plugins.git.dir import (
BareLocalGitControlDirFormat,
LocalGitControlDirFormat,
)
if transport.has_any(['.git/objects']):
return LocalGitControlDirFormat()
if transport.has('info') and transport.has('objects'):
return BareLocalGitControlDirFormat()
raise bzr_errors.NotBranchError(path=transport.base)
@classmethod
def known_formats(cls):
from bzrlib.plugins.git.dir import (
BareLocalGitControlDirFormat,
LocalGitControlDirFormat,
)
return set([BareLocalGitControlDirFormat(), LocalGitControlDirFormat()])
class RemoteGitProber(Prober):
def probe_http_transport(self, transport):
from bzrlib import urlutils
url = urlutils.join(transport.external_url(), "info/refs") + "?service=git-upload-pack"
from bzrlib.transport.http._urllib import HttpTransport_urllib, Request
if isinstance(transport, HttpTransport_urllib):
req = Request('GET', url, accepted_errors=[200, 403, 404, 405],
headers={"Content-Type": "application/x-git-upload-pack-request"})
req.follow_redirections = True
resp = transport._perform(req)
if resp.code == 404:
raise bzr_errors.NotBranchError(transport.base)
headers = resp.headers
else:
try:
from bzrlib.transport.http._pycurl import PyCurlTransport
except bzr_errors.DependencyNotPresent:
raise bzr_errors.NotBranchError(transport.base)
else:
import pycurl
from cStringIO import StringIO
if isinstance(transport, PyCurlTransport):
conn = transport._get_curl()
conn.setopt(pycurl.URL, url)
transport._set_curl_options(conn)
conn.setopt(pycurl.HTTPGET, 1)
header = StringIO()
data = StringIO()
conn.setopt(pycurl.HEADERFUNCTION, header.write)
conn.setopt(pycurl.WRITEFUNCTION, data.write)
transport._curl_perform(conn, header,
["Content-Type: application/x-git-upload-pack-request"])
code = conn.getinfo(pycurl.HTTP_CODE)
if code == 404:
raise bzr_errors.NotBranchError(transport.base)
if code != 200:
raise bzr_errors.InvalidHttpResponse(transport._path,
str(code))
headers = transport._parse_headers(header)
else:
raise bzr_errors.NotBranchError(transport.base)
ct = headers.getheader("Content-Type")
if ct is None:
raise bzr_errors.NotBranchError(transport.base)
if ct.startswith("application/x-git"):
from bzrlib.plugins.git.remote import RemoteGitControlDirFormat
return RemoteGitControlDirFormat()
else:
from bzrlib.plugins.git.dir import (
BareLocalGitControlDirFormat,
)
return BareLocalGitControlDirFormat()
def probe_transport(self, transport):
try:
external_url = transport.external_url()
except bzr_errors.InProcessTransport:
raise bzr_errors.NotBranchError(path=transport.base)
if (external_url.startswith("http:") or
external_url.startswith("https:")):
return self.probe_http_transport(transport)
if (not external_url.startswith("git://") and
not external_url.startswith("git+")):
raise bzr_errors.NotBranchError(transport.base)
# little ugly, but works
from bzrlib.plugins.git.remote import (
GitSmartTransport,
RemoteGitControlDirFormat,
)
if isinstance(transport, GitSmartTransport):
return RemoteGitControlDirFormat()
raise bzr_errors.NotBranchError(path=transport.base)
@classmethod
def known_formats(cls):
from bzrlib.plugins.git.remote import RemoteGitControlDirFormat
return set([RemoteGitControlDirFormat()])
if not getattr(Prober, "known_formats", None): # bzr < 2.4
from bzrlib.plugins.git.dir import (
LocalGitControlDirFormat, BareLocalGitControlDirFormat,
)
from bzrlib.plugins.git.remote import RemoteGitControlDirFormat
ControlDirFormat.register_format(LocalGitControlDirFormat())
ControlDirFormat.register_format(BareLocalGitControlDirFormat())
ControlDirFormat.register_format(RemoteGitControlDirFormat())
# Provide RevisionTree.get_file_revision, so various parts of bzr-svn
# can avoid inventories.
from bzrlib.revisiontree import RevisionTree
def get_file_revision(tree, file_id, path=None):
return tree.inventory[file_id].revision
RevisionTree.get_file_revision = get_file_revision
ControlDirFormat.register_prober(LocalGitProber)
ControlDirFormat._server_probers.insert(0, RemoteGitProber)
register_transport_proto('git://',
help="Access using the Git smart server protocol.")
register_transport_proto('git+ssh://',
help="Access using the Git smart server protocol over SSH.")
register_lazy_transport("git://", 'bzrlib.plugins.git.remote',
'TCPGitSmartTransport')
register_lazy_transport("git+ssh://", 'bzrlib.plugins.git.remote',
'SSHGitSmartTransport')
foreign_vcs_registry.register_lazy("git",
"bzrlib.plugins.git.mapping", "foreign_vcs_git", "Stupid content tracker")
plugin_cmds.register_lazy("cmd_git_import", [], "bzrlib.plugins.git.commands")
plugin_cmds.register_lazy("cmd_git_object", ["git-objects", "git-cat"],
"bzrlib.plugins.git.commands")
plugin_cmds.register_lazy("cmd_git_refs", [], "bzrlib.plugins.git.commands")
plugin_cmds.register_lazy("cmd_git_apply", [], "bzrlib.plugins.git.commands")
def extract_git_foreign_revid(rev):
try:
foreign_revid = rev.foreign_revid
except AttributeError:
from bzrlib.plugins.git.mapping import mapping_registry
foreign_revid, mapping = \
mapping_registry.parse_revision_id(rev.revision_id)
return foreign_revid
else:
from bzrlib.plugins.git.mapping import foreign_vcs_git
if rev.mapping.vcs == foreign_vcs_git:
return foreign_revid
else:
raise bzr_errors.InvalidRevisionId(rev.revision_id, None)
def update_stanza(rev, stanza):
mapping = getattr(rev, "mapping", None)
try:
git_commit = extract_git_foreign_revid(rev)
except bzr_errors.InvalidRevisionId:
pass
else:
stanza.add("git-commit", git_commit)
try:
from bzrlib.hooks import install_lazy_named_hook
except ImportError: # Compatibility with bzr < 2.4
from bzrlib.version_info_formats.format_rio import (
RioVersionInfoBuilder,
)
RioVersionInfoBuilder.hooks.install_named_hook('revision', update_stanza,
"git commits")
else:
install_lazy_named_hook("bzrlib.version_info_formats.format_rio",
"RioVersionInfoBuilder.hooks", "revision", update_stanza,
"git commits")
from bzrlib.transport import transport_server_registry
transport_server_registry.register_lazy('git',
'bzrlib.plugins.git.server',
'serve_git',
'Git Smart server protocol over TCP. (default port: 9418)')
from bzrlib.repository import (
format_registry as repository_format_registry,
network_format_registry as repository_network_format_registry,
)
repository_network_format_registry.register_lazy('git',
'bzrlib.plugins.git.repository', 'GitRepositoryFormat')
try:
register_extra_lazy_repository_format = getattr(repository_format_registry,
"register_extra_lazy")
except AttributeError: # bzr < 2.4
pass
else:
register_extra_lazy_repository_format('bzrlib.plugins.git.repository',
'GitRepositoryFormat')
from bzrlib.branch import (
network_format_registry as branch_network_format_registry,
)
branch_network_format_registry.register_lazy('git',
'bzrlib.plugins.git.branch', 'GitBranchFormat')
try:
from bzrlib.branch import (
format_registry as branch_format_registry,
)
except ImportError: # bzr < 2.4
pass
else:
branch_format_registry.register_extra_lazy(
'bzrlib.plugins.git.branch',
'GitBranchFormat',
)
try:
from bzrlib.workingtree import (
format_registry as workingtree_format_registry,
)
except ImportError: # bzr < 2.4
pass
else:
workingtree_format_registry.register_extra_lazy(
'bzrlib.plugins.git.workingtree',
'GitWorkingTreeFormat',
)
controldir_network_format_registry.register_lazy('git',
"bzrlib.plugins.git.dir", "GitControlDirFormat")
send_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
'send_git', 'Git am-style diff format')
topic_registry.register_lazy('git', 'bzrlib.plugins.git.help', 'help_git',
'Using Bazaar with Git')
from bzrlib.diff import format_registry as diff_format_registry
diff_format_registry.register_lazy('git', 'bzrlib.plugins.git.send',
'GitDiffTree', 'Git am-style diff format')
def update_git_cache(repository, revid):
"""Update the git cache after a local commit."""
if getattr(repository, "_git", None) is not None:
return # No need to update cache for git repositories
if not repository.control_transport.has("git"):
return # No existing cache, don't bother updating
try:
lazy_check_versions()
except bzr_errors.DependencyNotPresent, e:
# dulwich is probably missing. silently ignore
trace.mutter("not updating git map for %r: %s",
repository, e)
from bzrlib.plugins.git.object_store import BazaarObjectStore
store = BazaarObjectStore(repository)
store.lock_write()
try:
parent_revisions = set(repository.get_parent_map([revid])[revid])
missing_revisions = store._missing_revisions(parent_revisions)
if not missing_revisions:
# Only update if the cache was up to date previously
store._update_sha_map_revision(revid)
finally:
store.unlock()
def post_commit_update_cache(local_branch, master_branch, old_revno, old_revid,
new_revno, new_revid):
if local_branch is not None:
update_git_cache(local_branch.repository, new_revid)
update_git_cache(master_branch.repository, new_revid)
try:
from bzrlib.hooks import install_lazy_named_hook
except ImportError: # Compatibility with bzr < 2.4
pass
else:
install_lazy_named_hook("bzrlib.branch",
"Branch.hooks", "post_commit", post_commit_update_cache,
"git cache")
def test_suite():
from bzrlib.plugins.git import tests
return tests.test_suite()
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