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# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""
BitBake 'Fetch' git submodules implementation
Inherits from and extends the Git fetcher to retrieve submodules of a git repository
after cloning.
SRC_URI = "gitsm://<see Git fetcher for syntax>"
See the Git fetcher, git://, for usage documentation.
NOTE: Switching a SRC_URI from "git://" to "gitsm://" requires a clean of your recipe.
"""
# Copyright (C) 2013 Richard Purdie
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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.
import os
import bb
from bb.fetch2.git import Git
from bb.fetch2 import runfetchcmd
from bb.fetch2 import logger
class GitSM(Git):
def supports(self, ud, d):
"""
Check to see if a given url can be fetched with git.
"""
return ud.type in ['gitsm']
def uses_submodules(self, ud, d, wd):
for name in ud.names:
try:
runfetchcmd("%s show %s:.gitmodules" % (ud.basecmd, ud.revisions[name]), d, quiet=True, workdir=wd)
return True
except bb.fetch.FetchError:
pass
return False
def _set_relative_paths(self, repopath):
"""
Fix submodule paths to be relative instead of absolute,
so that when we move the repo it doesn't break
(In Git 1.7.10+ this is done automatically)
"""
submodules = []
with open(os.path.join(repopath, '.gitmodules'), 'r') as f:
for line in f.readlines():
if line.startswith('[submodule'):
submodules.append(line.split('"')[1])
for module in submodules:
repo_conf = os.path.join(repopath, module, '.git')
if os.path.exists(repo_conf):
with open(repo_conf, 'r') as f:
lines = f.readlines()
newpath = ''
for i, line in enumerate(lines):
if line.startswith('gitdir:'):
oldpath = line.split(': ')[-1].rstrip()
if oldpath.startswith('/'):
newpath = '../' * (module.count('/') + 1) + '.git/modules/' + module
lines[i] = 'gitdir: %s\n' % newpath
break
if newpath:
with open(repo_conf, 'w') as f:
for line in lines:
f.write(line)
repo_conf2 = os.path.join(repopath, '.git', 'modules', module, 'config')
if os.path.exists(repo_conf2):
with open(repo_conf2, 'r') as f:
lines = f.readlines()
newpath = ''
for i, line in enumerate(lines):
if line.lstrip().startswith('worktree = '):
oldpath = line.split(' = ')[-1].rstrip()
if oldpath.startswith('/'):
newpath = '../' * (module.count('/') + 3) + module
lines[i] = '\tworktree = %s\n' % newpath
break
if newpath:
with open(repo_conf2, 'w') as f:
for line in lines:
f.write(line)
def update_submodules(self, ud, d):
# We have to convert bare -> full repo, do the submodule bit, then convert back
tmpclonedir = ud.clonedir + ".tmp"
gitdir = tmpclonedir + os.sep + ".git"
bb.utils.remove(tmpclonedir, True)
os.mkdir(tmpclonedir)
os.rename(ud.clonedir, gitdir)
runfetchcmd("sed " + gitdir + "/config -i -e 's/bare.*=.*true/bare = false/'", d)
runfetchcmd(ud.basecmd + " reset --hard", d, workdir=tmpclonedir)
runfetchcmd(ud.basecmd + " checkout -f " + ud.revisions[ud.names[0]], d, workdir=tmpclonedir)
runfetchcmd(ud.basecmd + " submodule update --init --recursive", d, workdir=tmpclonedir)
self._set_relative_paths(tmpclonedir)
runfetchcmd("sed " + gitdir + "/config -i -e 's/bare.*=.*false/bare = true/'", d, workdir=tmpclonedir)
os.rename(gitdir, ud.clonedir,)
bb.utils.remove(tmpclonedir, True)
def download(self, ud, d):
Git.download(self, ud, d)
submodules = self.uses_submodules(ud, d, ud.clonedir)
if submodules:
self.update_submodules(ud, d)
def unpack(self, ud, destdir, d):
Git.unpack(self, ud, destdir, d)
submodules = self.uses_submodules(ud, d, ud.destdir)
if submodules:
runfetchcmd(ud.basecmd + " checkout " + ud.revisions[ud.names[0]], d, workdir=ud.destdir)
runfetchcmd(ud.basecmd + " submodule update --init --recursive", d, workdir=ud.destdir)
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