Files
poky/bitbake/lib/bb/fetch/git.py
Khem Raj 6491ed9e2e fetchers: Use tar --exclude pattern to remove SCM files
This option will exclude the SCM metadata from tar files.

Tested with gcc where svn tar which used to be 156M for gcc 4.5
is now 77M

(Bitbake rev: f264cb6d43472525ad787b0887764ea696ec52ba)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2011-01-04 14:46:37 +00:00

256 lines
8.8 KiB
Python

# 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
from bb.fetch 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 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)
ud.basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
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", "")
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 --exclude '.git' -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):
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.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):
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