mirror of
git://git.yoctoproject.org/poky.git
synced 2025-07-19 21:09:03 +02:00
df2a37abd0
Some upstream git repo may rebase in the future, which means current revision may disappear from the upstream repo after the rebase. current git fetcher can not handle this case, because the git mirror tar ball is per repo, and may also change in the rebase and lost the current revision info. To fix this issue, this patch - add rebaseable tag in the SRC_URI - for rebaseable repo, make git mirror tar ball per revision, in this case, even upstream rebase, the git mirror still has the current revision info. - for rebaseable repo, generate mirror tar ball by default, since the repo may change in the future. (Bitbake rev: 92701d4c5372db48847c70da4ebd0736d79fd54b) Signed-off-by: Yu Ke <ke.yu@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
258 lines
9.8 KiB
Python
258 lines
9.8 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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"""
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BitBake 'Fetch' git implementation
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"""
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#Copyright (C) 2005 Richard Purdie
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import os
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import bb
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from bb import data
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from bb.fetch2 import FetchMethod
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from bb.fetch2 import runfetchcmd
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from bb.fetch2 import logger
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class Git(FetchMethod):
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"""Class to fetch a module or modules from git repositories"""
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def init(self, d):
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#
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# Only enable _sortable revision if the key is set
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#
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if bb.data.getVar("BB_GIT_CLONE_FOR_SRCREV", d, True):
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self._sortable_buildindex = self._sortable_buildindex_disabled
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def supports(self, url, ud, d):
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"""
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Check to see if a given url can be fetched with git.
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"""
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return ud.type in ['git']
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def urldata_init(self, ud, d):
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"""
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init git specific variable within url data
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so that the git method like latest_revision() can work
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"""
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if 'protocol' in ud.parm:
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ud.proto = ud.parm['protocol']
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elif not ud.host:
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ud.proto = 'file'
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else:
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ud.proto = "rsync"
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ud.nocheckout = False
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if 'nocheckout' in ud.parm:
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ud.nocheckout = True
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# rebaseable means the upstream git repo may rebase in the future,
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# and current revision may disappear from upstream repo
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# rebaseable is false by default. set rebaseable=1 in SRC_URI if rebaseable.
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ud.rebaseable = ud.parm.get("rebaseable","0") == "1"
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branches = ud.parm.get("branch", "master").split(',')
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if len(branches) != len(ud.names):
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raise bb.fetch2.ParameterError("The number of name and branch parameters is not balanced", ud.url)
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ud.branches = {}
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for name in ud.names:
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branch = branches[ud.names.index(name)]
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ud.branches[name] = branch
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ud.basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
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ud.write_tarballs = ((data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True) or "0") != "0") or ud.rebaseable
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ud.setup_revisons(d)
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for name in ud.names:
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# Ensure anything that doesn't look like a sha256 checksum/revision is translated into one
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if not ud.revisions[name] or len(ud.revisions[name]) != 40 or (False in [c in "abcdef0123456789" for c in ud.revisions[name]]):
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ud.branches[name] = ud.revisions[name]
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ud.revisions[name] = self.latest_revision(ud.url, ud, d, name)
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gitsrcname = '%s%s' % (ud.host, ud.path.replace('/', '.'))
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# for rebaseable git repo, it is necessary to keep mirror tar ball
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# per revision, so that even the revision disappears from the
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# upstream repo in the future, the mirror will remain intact and still
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# contains the revision
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if ud.rebaseable:
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for name in ud.names:
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gitsrcname = gitsrcname + '_' + ud.revisions[name]
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ud.mirrortarball = 'git2_%s.tar.gz' % (gitsrcname)
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ud.fullmirror = os.path.join(data.getVar("DL_DIR", d, True), ud.mirrortarball)
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ud.clonedir = os.path.join(data.expand('${GITDIR}', d), gitsrcname)
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ud.localfile = ud.clonedir
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def localpath(self, url, ud, d):
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return ud.clonedir
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def need_update(self, u, ud, d):
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if not os.path.exists(ud.clonedir):
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return True
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os.chdir(ud.clonedir)
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for name in ud.names:
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if not self._contains_ref(ud.revisions[name], d):
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return True
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if ud.write_tarballs and not os.path.exists(ud.fullmirror):
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return True
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return False
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def try_premirror(self, u, ud, d):
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# If we don't do this, updating an existing checkout with only premirrors
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# is not possible
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if bb.data.getVar("BB_FETCH_PREMIRRORONLY", d, True) is not None:
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return True
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if os.path.exists(ud.clonedir):
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return False
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return True
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def download(self, loc, ud, d):
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"""Fetch url"""
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if ud.user:
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username = ud.user + '@'
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else:
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username = ""
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ud.repochanged = not os.path.exists(ud.fullmirror)
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# If the checkout doesn't exist and the mirror tarball does, extract it
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if not os.path.exists(ud.clonedir) and os.path.exists(ud.fullmirror):
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bb.utils.mkdirhier(ud.clonedir)
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os.chdir(ud.clonedir)
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runfetchcmd("tar -xzf %s" % (ud.fullmirror), d)
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# If the repo still doesn't exist, fallback to cloning it
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if not os.path.exists(ud.clonedir):
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bb.fetch2.check_network_access(d, "git clone --bare %s%s" % (ud.host, ud.path))
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runfetchcmd("%s clone --bare %s://%s%s%s %s" % (ud.basecmd, ud.proto, username, ud.host, ud.path, ud.clonedir), d)
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os.chdir(ud.clonedir)
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# Update the checkout if needed
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needupdate = False
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for name in ud.names:
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if not self._contains_ref(ud.revisions[name], d):
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needupdate = True
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if needupdate:
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bb.fetch2.check_network_access(d, "git fetch %s%s" % (ud.host, ud.path), ud.url)
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try:
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runfetchcmd("%s remote prune origin" % ud.basecmd, d)
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runfetchcmd("%s remote rm origin" % ud.basecmd, d)
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except bb.fetch2.FetchError:
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logger.debug(1, "No Origin")
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runfetchcmd("%s remote add origin %s://%s%s%s" % (ud.basecmd, ud.proto, username, ud.host, ud.path), d)
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runfetchcmd("%s fetch --all -t" % ud.basecmd, d)
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runfetchcmd("%s prune-packed" % ud.basecmd, d)
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runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d)
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ud.repochanged = True
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def build_mirror_data(self, url, ud, d):
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# Generate a mirror tarball if needed
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if ud.write_tarballs and (ud.repochanged or not os.path.exists(ud.fullmirror)):
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os.chdir(ud.clonedir)
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logger.info("Creating tarball of git repository")
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runfetchcmd("tar -czf %s %s" % (ud.fullmirror, os.path.join(".") ), d)
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def unpack(self, ud, destdir, d):
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""" unpack the downloaded src to destdir"""
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subdir = ud.parm.get("subpath", "")
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if subdir != "":
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readpathspec = ":%s" % (subdir)
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else:
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readpathspec = ""
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destdir = os.path.join(destdir, "git/")
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if os.path.exists(destdir):
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bb.utils.prunedir(destdir)
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runfetchcmd("git clone -s -n %s %s" % (ud.clonedir, destdir), d)
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if not ud.nocheckout:
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os.chdir(destdir)
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runfetchcmd("%s read-tree %s%s" % (ud.basecmd, ud.revisions[ud.names[0]], readpathspec), d)
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runfetchcmd("%s checkout-index -q -f -a" % ud.basecmd, d)
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return True
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def clean(self, ud, d):
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""" clean the git directory """
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bb.utils.remove(ud.localpath, True)
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bb.utils.remove(ud.fullmirror)
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def supports_srcrev(self):
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return True
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def _contains_ref(self, tag, d):
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basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
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output = runfetchcmd("%s log --pretty=oneline -n 1 %s -- 2> /dev/null | wc -l" % (basecmd, tag), d, quiet=True)
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return output.split()[0] != "0"
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def _revision_key(self, url, ud, d, name):
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"""
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Return a unique key for the url
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"""
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return "git:" + ud.host + ud.path.replace('/', '.') + ud.branches[name]
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def _latest_revision(self, url, ud, d, name):
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"""
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Compute the HEAD revision for the url
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"""
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if ud.user:
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username = ud.user + '@'
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else:
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username = ""
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bb.fetch2.check_network_access(d, "git ls-remote %s%s %s" % (ud.host, ud.path, ud.branches[name]))
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basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
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cmd = "%s ls-remote %s://%s%s%s %s" % (basecmd, ud.proto, username, ud.host, ud.path, ud.branches[name])
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output = runfetchcmd(cmd, d, True)
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if not output:
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raise bb.fetch2.FetchError("The command %s gave empty output unexpectedly" % cmd, url)
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return output.split()[0]
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def _build_revision(self, url, ud, d, name):
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return ud.revisions[name]
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def _sortable_buildindex_disabled(self, url, ud, d, rev):
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"""
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Return a suitable buildindex for the revision specified. This is done by counting revisions
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using "git rev-list" which may or may not work in different circumstances.
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"""
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cwd = os.getcwd()
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# Check if we have the rev already
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if not os.path.exists(ud.clonedir):
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print("no repo")
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self.download(None, ud, d)
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if not os.path.exists(ud.clonedir):
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logger.error("GIT repository for %s doesn't exist in %s, cannot get sortable buildnumber, using old value", url, ud.clonedir)
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return None
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os.chdir(ud.clonedir)
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if not self._contains_ref(rev, d):
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self.download(None, ud, d)
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output = runfetchcmd("%s rev-list %s -- 2> /dev/null | wc -l" % (ud.basecmd, rev), d, quiet=True)
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os.chdir(cwd)
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buildindex = "%s" % output.split()[0]
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logger.debug(1, "GIT repository for %s in %s is returning %s revisions in rev-list before %s", url, ud.clonedir, buildindex, rev)
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return buildindex
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