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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 implementation
"""
#Copyright (C) 2005 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 import data
from bb.fetch import Fetch
from bb.fetch import runfetchcmd
class Git(Fetch):
"""Class to fetch a module or modules from git repositories"""
def init(self, d):
#
# Only enable _sortable revision if the key is set
#
if bb.data.getVar("BB_GIT_CLONE_FOR_SRCREV", d, True):
self._sortable_buildindex = self._sortable_buildindex_disabled
def supports(self, url, ud, d):
"""
Check to see if a given url can be fetched with git.
"""
return ud.type in ['git']
def localpath(self, url, ud, d):
if 'protocol' in ud.parm:
ud.proto = ud.parm['protocol']
elif not ud.host:
ud.proto = 'file'
else:
ud.proto = "rsync"
ud.branch = ud.parm.get("branch", "master")
gitsrcname = '%s%s' % (ud.host, ud.path.replace('/', '.'))
ud.mirrortarball = 'git_%s.tar.gz' % (gitsrcname)
ud.clonedir = os.path.join(data.expand('${GITDIR}', d), gitsrcname)
tag = Fetch.srcrev_internal_helper(ud, d)
if tag is True:
ud.tag = self.latest_revision(url, ud, d)
elif tag:
ud.tag = tag
if not ud.tag or ud.tag == "master":
ud.tag = self.latest_revision(url, ud, d)
subdir = ud.parm.get("subpath", "")
if subdir != "":
if subdir.endswith("/"):
subdir = subdir[:-1]
subdirpath = os.path.join(ud.path, subdir);
else:
subdirpath = ud.path;
if 'fullclone' in ud.parm:
ud.localfile = ud.mirrortarball
else:
ud.localfile = data.expand('git_%s%s_%s.tar.gz' % (ud.host, subdirpath.replace('/', '.'), ud.tag), d)
return os.path.join(data.getVar("DL_DIR", d, True), ud.localfile)
def go(self, loc, ud, d):
"""Fetch url"""
if Fetch.try_mirror(d, ud.localfile):
bb.msg.debug(1, bb.msg.domain.Fetcher, "%s already exists (or was stashed). Skipping git checkout." % ud.localpath)
return
if ud.user:
username = ud.user + '@'
else:
username = ""
repofile = os.path.join(data.getVar("DL_DIR", d, 1), ud.mirrortarball)
coname = '%s' % (ud.tag)
codir = os.path.join(ud.clonedir, coname)
if not os.path.exists(ud.clonedir):
if Fetch.try_mirror(d, ud.mirrortarball):
bb.mkdirhier(ud.clonedir)
os.chdir(ud.clonedir)
runfetchcmd("tar -xzf %s" % (repofile), d)
else:
runfetchcmd("git clone -n %s://%s%s%s %s" % (ud.proto, username, ud.host, ud.path, ud.clonedir), d)
os.chdir(ud.clonedir)
# Remove all but the .git directory
if not self._contains_ref(ud.tag, d):
runfetchcmd("rm * -Rf", d)
runfetchcmd("git fetch %s://%s%s%s %s" % (ud.proto, username, ud.host, ud.path, ud.branch), d)
runfetchcmd("git fetch --tags %s://%s%s%s" % (ud.proto, username, ud.host, ud.path), d)
runfetchcmd("git prune-packed", d)
runfetchcmd("git pack-redundant --all | xargs -r rm", d)
os.chdir(ud.clonedir)
mirror_tarballs = data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True)
if mirror_tarballs != "0" or 'fullclone' in ud.parm:
bb.msg.note(1, bb.msg.domain.Fetcher, "Creating tarball of git repository")
runfetchcmd("tar -czf %s %s" % (repofile, os.path.join(".", ".git", "*") ), d)
if 'fullclone' in ud.parm:
return
if os.path.exists(codir):
bb.utils.prunedir(codir)
subdir = ud.parm.get("subpath", "")
if subdir != "":
if subdir.endswith("/"):
subdirbase = os.path.basename(subdir[:-1])
else:
subdirbase = os.path.basename(subdir)
else:
subdirbase = ""
if subdir != "":
readpathspec = ":%s" % (subdir)
codir = os.path.join(codir, "git")
coprefix = os.path.join(codir, subdirbase, "")
else:
readpathspec = ""
coprefix = os.path.join(codir, "git", "")
bb.mkdirhier(codir)
os.chdir(ud.clonedir)
runfetchcmd("git read-tree %s%s" % (ud.tag, readpathspec), d)
runfetchcmd("git checkout-index -q -f --prefix=%s -a" % (coprefix), d)
os.chdir(codir)
bb.msg.note(1, bb.msg.domain.Fetcher, "Creating tarball of git checkout")
runfetchcmd("tar -czf %s %s" % (ud.localpath, os.path.join(".", "*") ), d)
os.chdir(ud.clonedir)
bb.utils.prunedir(codir)
def suppports_srcrev(self):
return True
def _contains_ref(self, tag, d):
output = runfetchcmd("git log --pretty=oneline -n 1 %s -- 2> /dev/null | wc -l" % tag, d, quiet=True)
return output.split()[0] != "0"
def _revision_key(self, url, ud, d):
"""
Return a unique key for the url
"""
return "git:" + ud.host + ud.path.replace('/', '.')
def _latest_revision(self, url, ud, d):
"""
Compute the HEAD revision for the url
"""
if ud.user:
username = ud.user + '@'
else:
username = ""
cmd = "git ls-remote %s://%s%s%s %s" % (ud.proto, username, ud.host, ud.path, ud.branch)
output = runfetchcmd(cmd, d, True)
if not output:
raise bb.fetch.FetchError("Fetch command %s gave empty output\n" % (cmd))
return output.split()[0]
def _build_revision(self, url, ud, d):
return ud.tag
def _sortable_buildindex_disabled(self, url, ud, d, rev):
"""
Return a suitable buildindex for the revision specified. This is done by counting revisions
using "git rev-list" which may or may not work in different circumstances.
"""
cwd = os.getcwd()
# Check if we have the rev already
if not os.path.exists(ud.clonedir):
print "no repo"
self.go(None, ud, d)
if not os.path.exists(ud.clonedir):
bb.msg.error(bb.msg.domain.Fetcher, "GIT repository for %s doesn't exist in %s, cannot get sortable buildnumber, using old value" % (url, ud.clonedir))
return None
os.chdir(ud.clonedir)
if not self._contains_ref(rev, d):
self.go(None, ud, d)
output = runfetchcmd("git rev-list %s -- 2> /dev/null | wc -l" % rev, d, quiet=True)
os.chdir(cwd)
buildindex = "%s" % output.split()[0]
bb.msg.debug(1, bb.msg.domain.Fetcher, "GIT repository for %s in %s is returning %s revisions in rev-list before %s" % (url, repodir, buildindex, rev))
return buildindex
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