lib/oe/reproducible: Use git log without gpg signature

Previously, if "showSignature" is present in user gitconfig, parsing
of the timestamp will fail.

Ideally we should replace this command with a git plumbing command.

(From OE-Core rev: e872f6636f4cb51426edc6c985e58d2fb74e0f96)

Signed-off-by: Benoît Mauduit <bmauduit@beneth.fr>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
(cherry picked from commit 3bd6f78f79b3d3e87d8db1e11f58d8021f929843)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/meta/lib/oe/reproducible.py b/meta/lib/oe/reproducible.py
index 0938e4cb39..1ed79b18ca 100644
--- a/meta/lib/oe/reproducible.py
+++ b/meta/lib/oe/reproducible.py
@@ -62,7 +62,8 @@ def get_source_date_epoch_from_git(d, sourcedir):
         return None
 
     bb.debug(1, "git repository: %s" % gitpath)
-    p = subprocess.run(['git', '--git-dir', gitpath, 'log', '-1', '--pretty=%ct'], check=True, stdout=subprocess.PIPE)
+    p = subprocess.run(['git', '-c', 'log.showSignature=false', '--git-dir', gitpath, 'log', '-1', '--pretty=%ct'],
+                       check=True, stdout=subprocess.PIPE)
     return int(p.stdout.decode('utf-8'))
 
 def get_source_date_epoch_from_youngest_file(d, sourcedir):