[PATCH] gitlab: use --refetch in check-patch/check-dco jobs

["Daniel P. Berrangé" <berrange@redhat.com>]

When gitlab initializes the repo checkout for a CI job, it will have
done a shallow clone with only partial history. Periodically the objects
that are omitted cause trouble with the check-patch/check-dco jobs. This
is exhibited as reporting strange errors being unable to fetch certain
objects that are known to exist.

Passing the --refetch flag to 'git fetch' causes it to not assume the
local checkout has all common objects and thus re-fetch everything that
is needed. This appears to solve the check-patch/check-dco job failures.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 .gitlab-ci.d/check-dco.py   | 2 +-
 .gitlab-ci.d/check-patch.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.gitlab-ci.d/check-dco.py b/.gitlab-ci.d/check-dco.py
index 70dec7d6ee..2fd56683dc 100755
--- a/.gitlab-ci.d/check-dco.py
+++ b/.gitlab-ci.d/check-dco.py
@@ -21,7 +21,7 @@
 
 print(f"adding upstream git repo @ {repourl}")
 subprocess.check_call(["git", "remote", "add", "check-dco", repourl])
-subprocess.check_call(["git", "fetch", "check-dco", "master"])
+subprocess.check_call(["git", "fetch", "--refetch", "check-dco", "master"])
 
 ancestor = subprocess.check_output(["git", "merge-base",
                                     "check-dco/master", "HEAD"],
diff --git a/.gitlab-ci.d/check-patch.py b/.gitlab-ci.d/check-patch.py
index 68c549a146..be13e6f77d 100755
--- a/.gitlab-ci.d/check-patch.py
+++ b/.gitlab-ci.d/check-patch.py
@@ -24,7 +24,7 @@
 # base for the user's branch. We thus need to figure out a common
 # ancestor between the user's branch and current git master.
 subprocess.check_call(["git", "remote", "add", "check-patch", repourl])
-subprocess.check_call(["git", "fetch", "check-patch", "master"])
+subprocess.check_call(["git", "fetch", "--refetch", "check-patch", "master"])
 
 ancestor = subprocess.check_output(["git", "merge-base",
                                     "check-patch/master", "HEAD"],
-- 
2.47.1