1 files changed, 77 insertions, 0 deletions

diff --git a/meta/classes/metadata_scm.bbclass b/meta/classes/metadata_scm.bbclass
new file mode 100644
index 0000000000..4f66011b0d
--- /dev/null
+++ b/meta/classes/metadata_scm.bbclass
@@ -0,0 +1,77 @@
+METADATA_BRANCH ?= "${@base_detect_branch(d)}"
+METADATA_REVISION ?= "${@base_detect_revision(d)}"
+
+def base_detect_revision(d):
+        path = base_get_scmbasepath(d)
+
+        scms = [base_get_metadata_git_revision, \
+                        base_get_metadata_svn_revision]
+
+        for scm in scms:
+                rev = scm(path, d)
+                if rev <> "<unknown>":
+                        return rev
+
+        return "<unknown>"      
+
+def base_detect_branch(d):
+        path = base_get_scmbasepath(d)
+
+        scms = [base_get_metadata_git_branch]
+
+        for scm in scms:
+                rev = scm(path, d)
+                if rev <> "<unknown>":
+                        return rev.strip()
+
+        return "<unknown>"      
+        
+        
+
+def base_get_scmbasepath(d):
+        path_to_bbfiles = bb.data.getVar( 'BBFILES', d, 1 ).split()
+        return path_to_bbfiles[0][:path_to_bbfiles[0].rindex( "packages" )]
+
+def base_get_metadata_monotone_branch(path, d):
+        monotone_branch = "<unknown>"
+        try:
+                monotone_branch = file( "%s/_MTN/options" % path ).read().strip()
+                if monotone_branch.startswith( "database" ):
+                        monotone_branch_words = monotone_branch.split()
+                        monotone_branch = monotone_branch_words[ monotone_branch_words.index( "branch" )+1][1:-1]
+        except:
+                pass
+        return monotone_branch
+
+def base_get_metadata_monotone_revision(path, d):
+        monotone_revision = "<unknown>"
+        try:
+                monotone_revision = file( "%s/_MTN/revision" % path ).read().strip()
+                if monotone_revision.startswith( "format_version" ):
+                        monotone_revision_words = monotone_revision.split()
+                        monotone_revision = monotone_revision_words[ monotone_revision_words.index( "old_revision" )+1][1:-1]
+        except IOError:
+                pass
+        return monotone_revision
+
+def base_get_metadata_svn_revision(path, d):
+        revision = "<unknown>"
+        try:
+                revision = file( "%s/.svn/entries" % path ).readlines()[3].strip()
+        except IOError:
+                pass
+        return revision
+
+def base_get_metadata_git_branch(path, d):
+        branch = os.popen('cd %s; git branch | grep "^* " | tr -d "* "' % path).read()
+
+        if len(branch) != 0:
+                return branch
+        return "<unknown>"
+
+def base_get_metadata_git_revision(path, d):
+        rev = os.popen("cd %s; git log -n 1 --pretty=oneline --" % path).read().split(" ")[0]
+        if len(rev) != 0:
+                return rev
+        return "<unknown>"
+