fetch2/git.py: References must match exactly

Previously the code used to match a reference to its SHA-1 in
_latest_revision() used the Python "in" operator, which made it match
if the reference matched the beginning of an existing tag or
branch. This test, however, must be exact. I.e., either the reference
matches a tag or branch exactly, or it does not match at all.

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/bb/fetch2/git.py b/lib/bb/fetch2/git.py
index 526668bc23c6d78647de86ba8e7a300aac2be9c0..59827e304fa7305c10dbd494eddba7d09880b07f 100644 (file)
--- a/lib/bb/fetch2/git.py
+++ b/lib/bb/fetch2/git.py
@@ -350,9 +350,10 @@ class Git(FetchMethod):
             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]
+            for l in output.strip().split('\n'):
+                sha1, ref = l.split()
+                if s == ref:
+                    return sha1
         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))