agl-basesystem

1 files changed, 227 insertions, 0 deletions

diff --git a/external/poky/bitbake/lib/bb/fetch2/gitsm.py b/external/poky/bitbake/lib/bb/fetch2/gitsm.py
new file mode 100644
index 00000000..a07eb7e7
--- /dev/null
+++ b/external/poky/bitbake/lib/bb/fetch2/gitsm.py
@@ -0,0 +1,227 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' git submodules implementation
+
+Inherits from and extends the Git fetcher to retrieve submodules of a git repository
+after cloning.
+
+SRC_URI = "gitsm://<see Git fetcher for syntax>"
+
+See the Git fetcher, git://, for usage documentation.
+
+NOTE: Switching a SRC_URI from "git://" to "gitsm://" requires a clean of your recipe.
+
+"""
+
+# Copyright (C) 2013 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
+import copy
+from   bb.fetch2.git import Git
+from   bb.fetch2 import runfetchcmd
+from   bb.fetch2 import logger
+from   bb.fetch2 import Fetch
+from   bb.fetch2 import BBFetchException
+
+class GitSM(Git):
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with git.
+        """
+        return ud.type in ['gitsm']
+
+    def process_submodules(self, ud, workdir, function, d):
+        """
+        Iterate over all of the submodules in this repository and execute
+        the 'function' for each of them.
+        """
+
+        submodules = []
+        paths = {}
+        revision = {}
+        uris = {}
+        subrevision = {}
+
+        def parse_gitmodules(gitmodules):
+            modules = {}
+            module = ""
+            for line in gitmodules.splitlines():
+                if line.startswith('[submodule'):
+                    module = line.split('"')[1]
+                    modules[module] = {}
+                elif module and line.strip().startswith('path'):
+                    path = line.split('=')[1].strip()
+                    modules[module]['path'] = path
+                elif module and line.strip().startswith('url'):
+                    url = line.split('=')[1].strip()
+                    modules[module]['url'] = url
+            return modules
+
+        # Collect the defined submodules, and their attributes
+        for name in ud.names:
+            try:
+                gitmodules = runfetchcmd("%s show %s:.gitmodules" % (ud.basecmd, ud.revisions[name]), d, quiet=True, workdir=workdir)
+            except:
+                # No submodules to update
+                continue
+
+            for m, md in parse_gitmodules(gitmodules).items():
+                try:
+                    module_hash = runfetchcmd("%s ls-tree -z -d %s %s" % (ud.basecmd, ud.revisions[name], md['path']), d, quiet=True, workdir=workdir)
+                except:
+                    # If the command fails, we don't have a valid file to check.  If it doesn't
+                    # fail -- it still might be a failure, see next check...
+                    module_hash = ""
+
+                if not module_hash:
+                    logger.debug(1, "submodule %s is defined, but is not initialized in the repository. Skipping", m)
+                    continue
+
+                submodules.append(m)
+                paths[m] = md['path']
+                revision[m] = ud.revisions[name]
+                uris[m] = md['url']
+                subrevision[m] = module_hash.split()[2]
+
+                # Convert relative to absolute uri based on parent uri
+                if uris[m].startswith('..'):
+                    newud = copy.copy(ud)
+                    newud.path = os.path.realpath(os.path.join(newud.path, uris[m]))
+                    uris[m] = Git._get_repo_url(self, newud)
+
+        for module in submodules:
+            # Translate the module url into a SRC_URI
+
+            if "://" in uris[module]:
+                # Properly formated URL already
+                proto = uris[module].split(':', 1)[0]
+                url = uris[module].replace('%s:' % proto, 'gitsm:', 1)
+            else:
+                if ":" in uris[module]:
+                    # Most likely an SSH style reference
+                    proto = "ssh"
+                    if ":/" in uris[module]:
+                        # Absolute reference, easy to convert..
+                        url = "gitsm://" + uris[module].replace(':/', '/', 1)
+                    else:
+                        # Relative reference, no way to know if this is right!
+                        logger.warning("Submodule included by %s refers to relative ssh reference %s.  References may fail if not absolute." % (ud.url, uris[module]))
+                        url = "gitsm://" + uris[module].replace(':', '/', 1)
+                else:
+                    # This has to be a file reference
+                    proto = "file"
+                    url = "gitsm://" + uris[module]
+
+            url += ';protocol=%s' % proto
+            url += ";name=%s" % module
+            url += ";subpath=%s" % module
+
+            ld = d.createCopy()
+            # Not necessary to set SRC_URI, since we're passing the URI to
+            # Fetch.
+            #ld.setVar('SRC_URI', url)
+            ld.setVar('SRCREV_%s' % module, subrevision[module])
+
+            # Workaround for issues with SRCPV/SRCREV_FORMAT errors
+            # error refer to 'multiple' repositories.  Only the repository
+            # in the original SRC_URI actually matters...
+            ld.setVar('SRCPV', d.getVar('SRCPV'))
+            ld.setVar('SRCREV_FORMAT', module)
+
+            function(ud, url, module, paths[module], ld)
+
+        return submodules != []
+
+    def need_update(self, ud, d):
+        if Git.need_update(self, ud, d):
+            return True
+
+        try:
+            # Check for the nugget dropped by the download operation
+            known_srcrevs = runfetchcmd("%s config --get-all bitbake.srcrev" % \
+                            (ud.basecmd), d, workdir=ud.clonedir)
+
+            if ud.revisions[ud.names[0]] not in known_srcrevs.split():
+                return True
+        except bb.fetch2.FetchError:
+            # No srcrev nuggets, so this is new and needs to be updated
+            return True
+
+        return False
+
+    def download(self, ud, d):
+        def download_submodule(ud, url, module, modpath, d):
+            url += ";bareclone=1;nobranch=1"
+
+            # Is the following still needed?
+            #url += ";nocheckout=1"
+
+            try:
+                newfetch = Fetch([url], d, cache=False)
+                newfetch.download()
+                # Drop a nugget to add each of the srcrevs we've fetched (used by need_update)
+                runfetchcmd("%s config --add bitbake.srcrev %s" % \
+                            (ud.basecmd, ud.revisions[ud.names[0]]), d, workdir=ud.clonedir)
+            except Exception as e:
+                logger.error('gitsm: submodule download failed: %s %s' % (type(e).__name__, str(e)))
+                raise
+
+        Git.download(self, ud, d)
+        self.process_submodules(ud, ud.clonedir, download_submodule, d)
+
+    def unpack(self, ud, destdir, d):
+        def unpack_submodules(ud, url, module, modpath, d):
+            url += ";bareclone=1;nobranch=1"
+
+            # Figure out where we clone over the bare submodules...
+            if ud.bareclone:
+                repo_conf = ud.destdir
+            else:
+                repo_conf = os.path.join(ud.destdir, '.git')
+
+            try:
+                newfetch = Fetch([url], d, cache=False)
+                newfetch.unpack(root=os.path.dirname(os.path.join(repo_conf, 'modules', module)))
+            except Exception as e:
+                logger.error('gitsm: submodule unpack failed: %s %s' % (type(e).__name__, str(e)))
+                raise
+
+            local_path = newfetch.localpath(url)
+
+            # Correct the submodule references to the local download version...
+            runfetchcmd("%(basecmd)s config submodule.%(module)s.url %(url)s" % {'basecmd': ud.basecmd, 'module': module, 'url' : local_path}, d, workdir=ud.destdir)
+
+            if ud.shallow:
+                runfetchcmd("%(basecmd)s config submodule.%(module)s.shallow true" % {'basecmd': ud.basecmd, 'module': module}, d, workdir=ud.destdir)
+
+            # Ensure the submodule repository is NOT set to bare, since we're checking it out...
+            try:
+                runfetchcmd("%s config core.bare false" % (ud.basecmd), d, quiet=True, workdir=os.path.join(repo_conf, 'modules', module))
+            except:
+                logger.error("Unable to set git config core.bare to false for %s" % os.path.join(repo_conf, 'modules', module))
+                raise
+
+        Git.unpack(self, ud, destdir, d)
+
+        ret = self.process_submodules(ud, ud.destdir, unpack_submodules, d)
+
+        if not ud.bareclone and ret:
+            # All submodules should already be downloaded and configured in the tree.  This simply sets
+            # up the configuration and checks out the files.  The main project config should remain
+            # unmodified, and no download from the internet should occur.
+            runfetchcmd("%s submodule update --recursive --no-fetch" % (ud.basecmd), d, quiet=True, workdir=ud.destdir)