[OE-core] [PATCH 4/7] classes/buildhistory: tag last 3 build revisions

[Paul Eggleton]

This makes it easier to obtain the difference from the last three
builds particularly where a single build might account for more than one
commit in the buildhistory git repository (e.g. if package and image
changes occurred).

Signed-off-by: Paul Eggleton <paul.eggleton at linux.intel.com>
---
 meta/classes/buildhistory.bbclass | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/meta/classes/buildhistory.bbclass b/meta/classes/buildhistory.bbclass
index 6fb1ba6..e3f9201 100644
--- a/meta/classes/buildhistory.bbclass
+++ b/meta/classes/buildhistory.bbclass
@@ -518,6 +518,10 @@ END
 		# Initialise the repo if necessary
 		if [ ! -d .git ] ; then
 			git init -q
+		else
+			git tag -f build-minus-3 build-minus-2 > /dev/null 2>&1 || true
+			git tag -f build-minus-2 build-minus-1 > /dev/null 2>&1 || true
+			git tag -f build-minus-1 > /dev/null 2>&1 || true
 		fi
 		# Check if there are new/changed files to commit (other than metadata-revs)
 		repostatus=`git status --porcelain | grep -v " metadata-revs$"`
-- 
1.8.1.2