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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.fetch2 import Fetch
from bb.fetch2 import runfetchcmd
from bb.fetch2 import logger
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 urldata_init(self, ud, d):
"""
init git specific variable within url data
so that the git method like latest_revision() can work
"""
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)
ud.basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
def localpath(self, url, ud, d):
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)
if 'noclone' in ud.parm:
ud.localfile = None
return None
return os.path.join(data.getVar("DL_DIR", d, True), ud.localfile)
def forcefetch(self, url, ud, d):
if 'fullclone' in ud.parm:
return True
if 'noclone' in ud.parm:
return False
if os.path.exists(ud.localpath):
return False
if not self._contains_ref(ud.tag, d):
return True
return False
def try_premirror(self, u, ud, d):
if 'noclone' in ud.parm:
return False
if os.path.exists(ud.clonedir):
return False
if os.path.exists(ud.localpath):
return False
return True
def go(self, loc, ud, d):
"""Fetch url"""
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 we have no existing clone and no mirror tarball, try and obtain one
if not os.path.exists(ud.clonedir) and not os.path.exists(repofile):
try:
Fetch.try_mirrors(ud.mirrortarball)
except:
pass
# If the checkout doesn't exist and the mirror tarball does, extract it
if not os.path.exists(ud.clonedir) and os.path.exists(repofile):
bb.mkdirhier(ud.clonedir)
os.chdir(ud.clonedir)
runfetchcmd("tar -xzf %s" % (repofile), d)
# If the repo still doesn't exist, fallback to cloning it
if not os.path.exists(ud.clonedir):
runfetchcmd("%s clone -n %s://%s%s%s %s" % (ud.basecmd, ud.proto, username, ud.host, ud.path, ud.clonedir), d)
os.chdir(ud.clonedir)
# Update the checkout if needed
if not self._contains_ref(ud.tag, d) or 'fullclone' in ud.parm:
# Remove all but the .git directory
runfetchcmd("rm * -Rf", d)
if 'fullclone' in ud.parm:
runfetchcmd("%s fetch --all" % (ud.basecmd), d)
else:
runfetchcmd("%s fetch %s://%s%s%s %s" % (ud.basecmd, ud.proto, username, ud.host, ud.path, ud.branch), d)
runfetchcmd("%s fetch --tags %s://%s%s%s" % (ud.basecmd, ud.proto, username, ud.host, ud.path), d)
runfetchcmd("%s prune-packed" % ud.basecmd, d)
runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d)
# Generate a mirror tarball if needed
os.chdir(ud.clonedir)
mirror_tarballs = data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True)
if mirror_tarballs != "0" or 'fullclone' in ud.parm:
logger.info("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", "")
scmdata = ud.parm.get("scmdata", "")
if scmdata == "keep":
runfetchcmd("%s clone -n %s %s" % (ud.basecmd, ud.clonedir, coprefix), d)
os.chdir(coprefix)
runfetchcmd("%s checkout -q -f %s%s" % (ud.basecmd, ud.tag, readpathspec), d)
else:
bb.mkdirhier(codir)
os.chdir(ud.clonedir)
runfetchcmd("%s read-tree %s%s" % (ud.basecmd, ud.tag, readpathspec), d)
runfetchcmd("%s checkout-index -q -f --prefix=%s -a" % (ud.basecmd, coprefix), d)
os.chdir(codir)
logger.info("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 supports_srcrev(self):
return True
def _contains_ref(self, tag, d):
basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
output = runfetchcmd("%s log --pretty=oneline -n 1 %s -- 2> /dev/null | wc -l" % (basecmd, 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('/', '.') + ud.branch
def _latest_revision(self, url, ud, d):
"""
Compute the HEAD revision for the url
"""
if ud.user:
username = ud.user + '@'
else:
username = ""
basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
cmd = "%s ls-remote %s://%s%s%s %s" % (basecmd, ud.proto, username, ud.host, ud.path, ud.branch)
output = runfetchcmd(cmd, d, True)
if not output:
raise bb.fetch2.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):
logger.error("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("%s rev-list %s -- 2> /dev/null | wc -l" % (ud.basecmd, rev), d, quiet=True)
os.chdir(cwd)
buildindex = "%s" % output.split()[0]
logger.debug(1, "GIT repository for %s in %s is returning %s revisions in rev-list before %s", url, ud.clonedir, buildindex, rev)
return buildindex
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