1 files changed, 435 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/bitbake/lib/bb/fetch2/git.py b/import-layers/yocto-poky/bitbake/lib/bb/fetch2/git.py
new file mode 100644
index 000000000..526668bc2
--- /dev/null
+++ b/import-layers/yocto-poky/bitbake/lib/bb/fetch2/git.py
@@ -0,0 +1,435 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' git implementation
+
+git fetcher support the SRC_URI with format of:
+SRC_URI = "git://some.host/somepath;OptionA=xxx;OptionB=xxx;..."
+
+Supported SRC_URI options are:
+
+- branch
+   The git branch to retrieve from. The default is "master"
+
+   This option also supports multiple branch fetching, with branches
+   separated by commas.  In multiple branches case, the name option
+   must have the same number of names to match the branches, which is
+   used to specify the SRC_REV for the branch
+   e.g:
+   SRC_URI="git://some.host/somepath;branch=branchX,branchY;name=nameX,nameY"
+   SRCREV_nameX = "xxxxxxxxxxxxxxxxxxxx"
+   SRCREV_nameY = "YYYYYYYYYYYYYYYYYYYY"
+
+- tag
+    The git tag to retrieve. The default is "master"
+
+- protocol
+   The method to use to access the repository. Common options are "git",
+   "http", "https", "file", "ssh" and "rsync". The default is "git".
+
+- rebaseable
+   rebaseable indicates that the upstream git repo may rebase in the future,
+   and current revision may disappear from upstream repo. This option will
+   remind fetcher to preserve local cache carefully for future use.
+   The default value is "0", set rebaseable=1 for rebaseable git repo.
+
+- nocheckout
+   Don't checkout source code when unpacking. set this option for the recipe
+   who has its own routine to checkout code.
+   The default is "0", set nocheckout=1 if needed.
+
+- bareclone
+   Create a bare clone of the source code and don't checkout the source code
+   when unpacking. Set this option for the recipe who has its own routine to
+   checkout code and tracking branch requirements.
+   The default is "0", set bareclone=1 if needed.
+
+- nobranch
+   Don't check the SHA validation for branch. set this option for the recipe
+   referring to commit which is valid in tag instead of branch.
+   The default is "0", set nobranch=1 if needed.
+
+"""
+
+#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 errno
+import os
+import re
+import bb
+import errno
+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):
+        pass
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with git.
+        """
+        return ud.type in ['git']
+
+    def supports_checksum(self, urldata):
+        return False
+
+    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 = "git"
+
+        if not ud.proto in ('git', 'file', 'ssh', 'http', 'https', 'rsync'):
+            raise bb.fetch2.ParameterError("Invalid protocol type", ud.url)
+
+        ud.nocheckout = ud.parm.get("nocheckout","0") == "1"
+
+        ud.rebaseable = ud.parm.get("rebaseable","0") == "1"
+
+        ud.nobranch = ud.parm.get("nobranch","0") == "1"
+
+        # bareclone implies nocheckout
+        ud.bareclone = ud.parm.get("bareclone","0") == "1"
+        if ud.bareclone:
+            ud.nocheckout = 1
+  
+        ud.unresolvedrev = {}
+        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
+            ud.unresolvedrev[name] = branch
+
+        ud.basecmd = data.getVar("FETCHCMD_git", d, True) or "git -c core.fsyncobjectfiles=0"
+
+        ud.write_tarballs = ((data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True) or "0") != "0") or ud.rebaseable
+
+        ud.setup_revisons(d)
+
+        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]]):
+                if ud.revisions[name]:
+                    ud.unresolvedrev[name] = ud.revisions[name]
+                ud.revisions[name] = self.latest_revision(ud, d, name)
+
+        gitsrcname = '%s%s' % (ud.host.replace(':', '.'), ud.path.replace('/', '.').replace('*', '.'))
+        if gitsrcname.startswith('.'):
+            gitsrcname = gitsrcname[1:]
+
+        # for rebaseable git repo, it is necessary to keep mirror tar ball
+        # per revision, so that even the revision disappears from the
+        # upstream repo in the future, the mirror will remain intact and still
+        # contains the revision
+        if ud.rebaseable:
+            for name in ud.names:
+                gitsrcname = gitsrcname + '_' + ud.revisions[name]
+        ud.mirrortarball = 'git2_%s.tar.gz' % (gitsrcname)
+        ud.fullmirror = os.path.join(d.getVar("DL_DIR", True), ud.mirrortarball)
+        gitdir = d.getVar("GITDIR", True) or (d.getVar("DL_DIR", True) + "/git2/")
+        ud.clonedir = os.path.join(gitdir, gitsrcname)
+
+        ud.localfile = ud.clonedir
+
+    def localpath(self, ud, d):
+        return ud.clonedir
+
+    def need_update(self, 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, d, name):
+                return True
+        if ud.write_tarballs and not os.path.exists(ud.fullmirror):
+            return True
+        return False
+
+    def try_premirror(self, ud, d):
+        # If we don't do this, updating an existing checkout with only premirrors
+        # is not possible
+        if d.getVar("BB_FETCH_PREMIRRORONLY", True) is not None:
+            return True
+        if os.path.exists(ud.clonedir):
+            return False
+        return True
+
+    def download(self, ud, d):
+        """Fetch url"""
+
+        # 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.utils.mkdirhier(ud.clonedir)
+            os.chdir(ud.clonedir)
+            runfetchcmd("tar -xzf %s" % (ud.fullmirror), d)
+
+        repourl = self._get_repo_url(ud)
+
+        # If the repo still doesn't exist, fallback to cloning it
+        if not os.path.exists(ud.clonedir):
+            # We do this since git will use a "-l" option automatically for local urls where possible
+            if repourl.startswith("file://"):
+                repourl = repourl[7:]
+            clone_cmd = "%s clone --bare --mirror %s %s" % (ud.basecmd, repourl, ud.clonedir)
+            if ud.proto.lower() != 'file':
+                bb.fetch2.check_network_access(d, clone_cmd)
+            runfetchcmd(clone_cmd, d)
+
+        os.chdir(ud.clonedir)
+        # Update the checkout if needed
+        needupdate = False
+        for name in ud.names:
+            if not self._contains_ref(ud, d, name):
+                needupdate = True
+        if needupdate:
+            try: 
+                runfetchcmd("%s remote rm origin" % ud.basecmd, d) 
+            except bb.fetch2.FetchError:
+                logger.debug(1, "No Origin")
+
+            runfetchcmd("%s remote add --mirror=fetch origin %s" % (ud.basecmd, repourl), d)
+            fetch_cmd = "%s fetch -f --prune %s refs/*:refs/*" % (ud.basecmd, repourl)
+            if ud.proto.lower() != 'file':
+                bb.fetch2.check_network_access(d, fetch_cmd, ud.url)
+            runfetchcmd(fetch_cmd, d)
+            runfetchcmd("%s prune-packed" % ud.basecmd, d)
+            runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d)
+            try:
+                os.unlink(ud.fullmirror)
+            except OSError as exc:
+                if exc.errno != errno.ENOENT:
+                    raise
+        os.chdir(ud.clonedir)
+        for name in ud.names:
+            if not self._contains_ref(ud, d, name):
+                raise bb.fetch2.FetchError("Unable to find revision %s in branch %s even from upstream" % (ud.revisions[name], ud.branches[name]))
+
+    def build_mirror_data(self, ud, d):
+        # Generate a mirror tarball if needed
+        if ud.write_tarballs and not os.path.exists(ud.fullmirror):
+            # it's possible that this symlink points to read-only filesystem with PREMIRROR
+            if os.path.islink(ud.fullmirror):
+                os.unlink(ud.fullmirror)
+
+            os.chdir(ud.clonedir)
+            logger.info("Creating tarball of git repository")
+            runfetchcmd("tar -czf %s %s" % (ud.fullmirror, os.path.join(".") ), d)
+            runfetchcmd("touch %s.done" % (ud.fullmirror), d)
+
+    def unpack(self, ud, destdir, d):
+        """ unpack the downloaded src to destdir"""
+
+        subdir = ud.parm.get("subpath", "")
+        if subdir != "":
+            readpathspec = ":%s" % (subdir)
+            def_destsuffix = "%s/" % os.path.basename(subdir.rstrip('/'))
+        else:
+            readpathspec = ""
+            def_destsuffix = "git/"
+
+        destsuffix = ud.parm.get("destsuffix", def_destsuffix)
+        destdir = ud.destdir = os.path.join(destdir, destsuffix)
+        if os.path.exists(destdir):
+            bb.utils.prunedir(destdir)
+
+        cloneflags = "-s -n"
+        if ud.bareclone:
+            cloneflags += " --mirror"
+
+        runfetchcmd("%s clone %s %s/ %s" % (ud.basecmd, cloneflags, ud.clonedir, destdir), d)
+        os.chdir(destdir)
+        repourl = self._get_repo_url(ud)
+        runfetchcmd("%s remote set-url origin %s" % (ud.basecmd, repourl), d)
+        if not ud.nocheckout:
+            if subdir != "":
+                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)
+            elif not ud.nobranch:
+                branchname =  ud.branches[ud.names[0]]
+                runfetchcmd("%s checkout -B %s %s" % (ud.basecmd, branchname, \
+                            ud.revisions[ud.names[0]]), d)
+                runfetchcmd("%s branch --set-upstream %s origin/%s" % (ud.basecmd, branchname, \
+                            branchname), d)
+            else:
+                runfetchcmd("%s checkout %s" % (ud.basecmd, ud.revisions[ud.names[0]]), d)
+
+        return True
+
+    def clean(self, ud, d):
+        """ clean the git directory """
+
+        bb.utils.remove(ud.localpath, True)
+        bb.utils.remove(ud.fullmirror)
+        bb.utils.remove(ud.fullmirror + ".done")
+
+    def supports_srcrev(self):
+        return True
+
+    def _contains_ref(self, ud, d, name):
+        cmd = ""
+        if ud.nobranch:
+            cmd = "%s log --pretty=oneline -n 1 %s -- 2> /dev/null | wc -l" % (
+                ud.basecmd, ud.revisions[name])
+        else:
+            cmd =  "%s branch --contains %s --list %s 2> /dev/null | wc -l" % (
+                ud.basecmd, ud.revisions[name], ud.branches[name])
+        try:
+            output = runfetchcmd(cmd, d, quiet=True)
+        except bb.fetch2.FetchError:
+            return False
+        if len(output.split()) > 1:
+            raise bb.fetch2.FetchError("The command '%s' gave output with more then 1 line unexpectedly, output: '%s'" % (cmd, output))
+        return output.split()[0] != "0"
+
+    def _get_repo_url(self, ud):
+        """
+        Return the repository URL
+        """
+        if ud.user:
+            username = ud.user + '@'
+        else:
+            username = ""
+        return "%s://%s%s%s" % (ud.proto, username, ud.host, ud.path)
+
+    def _revision_key(self, ud, d, name):
+        """
+        Return a unique key for the url
+        """
+        return "git:" + ud.host + ud.path.replace('/', '.') + ud.unresolvedrev[name]
+
+    def _lsremote(self, ud, d, search):
+        """
+        Run git ls-remote with the specified search string
+        """
+        repourl = self._get_repo_url(ud)
+        cmd = "%s ls-remote %s %s" % \
+              (ud.basecmd, repourl, search)
+        if ud.proto.lower() != 'file':
+            bb.fetch2.check_network_access(d, cmd)
+        output = runfetchcmd(cmd, d, True)
+        if not output:
+            raise bb.fetch2.FetchError("The command %s gave empty output unexpectedly" % cmd, ud.url)
+        return output
+
+    def _latest_revision(self, ud, d, name):
+        """
+        Compute the HEAD revision for the url
+        """
+        output = self._lsremote(ud, d, "")
+        # Tags of the form ^{} may not work, need to fallback to other form
+        if ud.unresolvedrev[name][:5] == "refs/":
+            head = ud.unresolvedrev[name]
+            tag = ud.unresolvedrev[name]
+        else:
+            head = "refs/heads/%s" % ud.unresolvedrev[name]
+            tag = "refs/tags/%s" % ud.unresolvedrev[name]
+        for s in [head, tag + "^{}", tag]:
+            for l in output.split('\n'):
+                if s in l:
+                    return l.split()[0]
+        raise bb.fetch2.FetchError("Unable to resolve '%s' in upstream git repository in git ls-remote output for %s" % \
+            (ud.unresolvedrev[name], ud.host+ud.path))
+
+    def latest_versionstring(self, ud, d):
+        """
+        Compute the latest release name like "x.y.x" in "x.y.x+gitHASH"
+        by searching through the tags output of ls-remote, comparing
+        versions and returning the highest match.
+        """
+        pupver = ('', '')
+
+        tagregex = re.compile(d.getVar('UPSTREAM_CHECK_GITTAGREGEX', True) or "(?P<pver>([0-9][\.|_]?)+)")
+        try:
+            output = self._lsremote(ud, d, "refs/tags/*")
+        except bb.fetch2.FetchError or bb.fetch2.NetworkAccess:
+            return pupver
+
+        verstring = ""
+        revision = ""
+        for line in output.split("\n"):
+            if not line:
+                break
+
+            tag_head = line.split("/")[-1]
+            # Ignore non-released branches
+            m = re.search("(alpha|beta|rc|final)+", tag_head)
+            if m:
+                continue
+
+            # search for version in the line
+            tag = tagregex.search(tag_head)
+            if tag == None:
+                continue
+
+            tag = tag.group('pver')
+            tag = tag.replace("_", ".")
+
+            if verstring and bb.utils.vercmp(("0", tag, ""), ("0", verstring, "")) < 0:
+                continue
+
+            verstring = tag
+            revision = line.split()[0]
+            pupver = (verstring, revision)
+
+        return pupver
+
+    def _build_revision(self, ud, d, name):
+        return ud.revisions[name]
+
+    def gitpkgv_revision(self, ud, d, name):
+        """
+        Return a sortable revision number by counting commits in the history
+        Based on gitpkgv.bblass in meta-openembedded
+        """
+        rev = self._build_revision(ud, d, name)
+        localpath = ud.localpath
+        rev_file = os.path.join(localpath, "oe-gitpkgv_" + rev)
+        if not os.path.exists(localpath):
+            commits = None
+        else:
+            if not os.path.exists(rev_file) or not os.path.getsize(rev_file):
+                from pipes import quote
+                commits = bb.fetch2.runfetchcmd(
+                        "git rev-list %s -- | wc -l" % (quote(rev)),
+                        d, quiet=True).strip().lstrip('0')
+                if commits:
+                    open(rev_file, "w").write("%d\n" % int(commits))
+            else:
+                commits = open(rev_file, "r").readline(128).strip()
+        if commits:
+            return False, "%s+%s" % (commits, rev[:7])
+        else:
+            return True, str(rev)
+
+    def checkstatus(self, fetch, ud, d):
+        try:
+            self._lsremote(ud, d, "")
+            return True
+        except FetchError:
+            return False