[PATCH] metadata-revs: provide more information

[Trevor Woerner <twoerner@gmail.com>]

Provide many more details concerning the repositories that are used in a
particular build: the remote information, the layer, the local branch, the
remote branch the local branch tracks (if any), and the HEAD commit.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
---
 meta/classes/buildhistory.bbclass |  6 +++++-
 meta/classes/metadata_scm.bbclass | 18 ++++++++++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/meta/classes/buildhistory.bbclass b/meta/classes/buildhistory.bbclass
index b6b4324..1b0ae0e 100644
--- a/meta/classes/buildhistory.bbclass
+++ b/meta/classes/buildhistory.bbclass
@@ -615,9 +615,13 @@ def buildhistory_get_build_id(d):
 
 def buildhistory_get_metadata_revs(d):
     # We want an easily machine-readable format here, so get_layers_branch_rev isn't quite what we want
+    import subprocess
     layers = (d.getVar("BBLAYERS", True) or "").split()
-    medadata_revs = ["%-17s = %s:%s" % (os.path.relpath(i, d.getVar('BBLAYERS_FETCH_DIR', True)), \
+    medadata_revs = ["%s\tlayer:  %s\n\tbranch: %s\n\tremote: %s\n\tHEAD:   %s\n" % ( \
+        base_get_metadata_git_remote(i, None), \
+        os.path.relpath(i, d.getVar('BBLAYERS_FETCH_DIR', True)), \
         base_get_metadata_git_branch(i, None).strip(), \
+        base_get_metadata_git_remote_branch(i, None).strip(), \
         base_get_metadata_git_revision(i, None)) \
             for i in layers]
     return '\n'.join(medadata_revs)
diff --git a/meta/classes/metadata_scm.bbclass b/meta/classes/metadata_scm.bbclass
index 0f7f423..31a2c54 100644
--- a/meta/classes/metadata_scm.bbclass
+++ b/meta/classes/metadata_scm.bbclass
@@ -73,6 +73,15 @@ def base_get_metadata_git_branch(path, d):
         rev = '<unknown>'
     return rev.strip()
 
+def base_get_metadata_git_remote_branch(path, d):
+    import bb.process
+
+    try:
+        rev, _ = bb.process.run('git rev-parse --abbrev-ref --symbolic-full-name @{u}', cwd=path)
+    except bb.process.ExecutionError:
+        rev = '(HEAD does not point to a remote branch)'
+    return rev.strip()
+
 def base_get_metadata_git_revision(path, d):
     import bb.process
 
@@ -81,3 +90,12 @@ def base_get_metadata_git_revision(path, d):
     except bb.process.ExecutionError:
         rev = '<unknown>'
     return rev.strip()
+
+def base_get_metadata_git_remote(path, d):
+    import bb.process
+
+    try:
+        lines, _ = bb.process.run('git remote -v', cwd=path)
+    except bb.process.ExecutionError:
+        return '<unknown>'
+    return lines
-- 
2.7.0.rc3