# 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 FetchMethod from bb.fetch2 import runfetchcmd from bb.fetch2 import logger class Git(FetchMethod): """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.nocheckout = False if 'nocheckout' in ud.parm: ud.nocheckout = True branches = ud.parm.get("branch", "master").split(',') if len(branches) != len(ud.names): raise bb.fetch2.ParameterError("The number of name and branch parameters is not balanced", ud.url) ud.branches = {} for name in ud.names: branch = branches[ud.names.index(name)] ud.branches[name] = branch gitsrcname = '%s%s' % (ud.host, ud.path.replace('/', '.')) ud.mirrortarball = 'git2_%s.tar.gz' % (gitsrcname) ud.fullmirror = os.path.join(data.getVar("DL_DIR", d, True), ud.mirrortarball) ud.clonedir = os.path.join(data.expand('${GITDIR}', d), gitsrcname) ud.basecmd = data.getVar("FETCHCMD_git", d, True) or "git" for name in ud.names: # Ensure anything that doesn't look like a sha256 checksum/revision is translated into one if not ud.revisions[name] or len(ud.revisions[name]) != 40 or (False in [c in "abcdef0123456789" for c in ud.revisions[name]]): ud.revisions[name] = self.latest_revision(ud.url, ud, d, name) ud.write_tarballs = (data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True) or "0") != "0" ud.localfile = ud.clonedir def localpath(self, url, ud, d): return ud.clonedir def need_update(self, u, ud, d): if not os.path.exists(ud.clonedir): return True os.chdir(ud.clonedir) for name in ud.names: if not self._contains_ref(ud.revisions[name], d): return True if ud.write_tarballs and not os.path.exists(ud.fullmirror): return True return False def try_premirror(self, u, ud, d): # If we don't do this, updating an existing checkout with only premirrors # is not possible if bb.data.getVar("BB_FETCH_PREMIRRORONLY", d, True) is not None: return True if os.path.exists(ud.clonedir): return False return True def download(self, loc, ud, d): """Fetch url""" if ud.user: username = ud.user + '@' else: username = "" ud.repochanged = not os.path.exists(ud.fullmirror) # If the checkout doesn't exist and the mirror tarball does, extract it if not os.path.exists(ud.clonedir) and os.path.exists(ud.fullmirror): bb.mkdirhier(ud.clonedir) os.chdir(ud.clonedir) runfetchcmd("tar -xzf %s" % (ud.fullmirror), d) # If the repo still doesn't exist, fallback to cloning it if not os.path.exists(ud.clonedir): bb.fetch2.check_network_access(d, "git clone --bare %s%s" % (ud.host, ud.path)) runfetchcmd("%s clone --bare %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 needupdate = False for name in ud.names: if not self._contains_ref(ud.revisions[name], d): needupdate = True if needupdate: bb.fetch2.check_network_access(d, "git fetch %s%s" % (ud.host, ud.path)) try: runfetchcmd("%s remote prune origin" % ud.basecmd, d) runfetchcmd("%s remote rm origin" % ud.basecmd, d) except bb.fetch2.FetchError: logger.debug(1, "No Origin") runfetchcmd("%s remote add origin %s://%s%s%s" % (ud.basecmd, ud.proto, username, ud.host, ud.path), d) runfetchcmd("%s fetch --all -t" % ud.basecmd, d) runfetchcmd("%s prune-packed" % ud.basecmd, d) runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d) ud.repochanged = True def build_mirror_data(self, url, ud, d): # Generate a mirror tarball if needed if ud.write_tarballs and (ud.repochanged or not os.path.exists(ud.fullmirror)): os.chdir(ud.clonedir) logger.info("Creating tarball of git repository") runfetchcmd("tar -czf %s %s" % (ud.fullmirror, os.path.join(".") ), d) def unpack(self, ud, destdir, d): """ unpack the downloaded src to destdir""" subdir = ud.parm.get("subpath", "") if subdir != "": readpathspec = ":%s" % (subdir) else: readpathspec = "" destdir = os.path.join(destdir, "git/") if os.path.exists(destdir): bb.utils.prunedir(destdir) runfetchcmd("git clone -s -n %s %s" % (ud.clonedir, destdir), d) if not ud.nocheckout: os.chdir(destdir) runfetchcmd("%s read-tree %s%s" % (ud.basecmd, ud.revisions[ud.names[0]], readpathspec), d) runfetchcmd("%s checkout-index -q -f -a" % ud.basecmd, d) return True 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, name): """ Return a unique key for the url """ return "git:" + ud.host + ud.path.replace('/', '.') + ud.branches[name] def _latest_revision(self, url, ud, d, name): """ Compute the HEAD revision for the url """ if ud.user: username = ud.user + '@' else: username = "" bb.fetch2.check_network_access(d, "git ls-remote %s%s %s" % (ud.host, ud.path, ud.branches[name])) 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.branches[name]) output = runfetchcmd(cmd, d, True) if not output: raise bb.fetch2.FetchError("The command %s gave empty output unexpectedly" % cmd, url) return output.split()[0] def _build_revision(self, url, ud, d, name): return ud.revisions[name] 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.download(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.download(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