opendev/git-review
Code Issues Proposed changes

Fix use of removed --preserve-merges option

Browse Source 
The --preserve-merges (-p) option was replaced by --rebase-merges (-r).
This fixes the following error when using git version 2.34.0:

    Errors running git rebase -p -i remotes/gerrit/stable/xena
    fatal: --preserve-merges was replaced by --rebase-merges

In order to keep compatibility with git < 2.18.0 we detect the git
version and use the old --preserve-merges flag when the version is older
than 2.18.0.

Co-Authored-By: Clark Boylan <clark.boylan@gmail.com>
Change-Id: I04de3d0f20aa6bafcf746b7706d61dd9b9af296c
This commit is contained in:
Pierre Riteau 2021-11-17 12:29:06 +01:00 committed by Clark Boylan
parent 6c3f134ac3
commit 7182166ec0
2 changed files with 38 additions and 14 deletions
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23
git_review/cmd.py
View File

@ -909,10 +909,25 @@ def rebase_changes(branch, remote, interactive=True):
"re-run with the '-R' option enabled." % (branch, remote))
sys.exit(1)
if interactive:
cmd = "git rebase -p -i %s" % remote_branch
else:
cmd = "git rebase -p %s" % remote_branch
# Determine git version to set rebase flags below.
output = run_command("git version")
rebase_flag = "--rebase-merges"
if "git version" in output:
try:
v = output.rsplit(None, 1)[1]
gitv = tuple(map(int, v.split('.')[:3]))
if gitv < (2, 18, 0):
rebase_flag = "--preserve-merges"
except Exception:
# We tried to determine the version and failed. Use current git
# flag as fallback.
warn("Could not determine git version. "
"Using modern git rebase flags.")
interactive_flag = interactive and '-i' or ''
cmd = "git rebase %s %s %s" % \
(rebase_flag, interactive_flag, remote_branch)
(status, output) = run_command_status(cmd, GIT_EDITOR='true')
if status != 0:

29
git_review/tests/test_git_review.py
View File

@ -323,9 +323,11 @@ class GitReviewTestCase(tests.BaseGitReviewTestCase):
'create conflict with master')
exc = self.assertRaises(Exception, self._run_git_review)
self.assertIn(
"Errors running git rebase -p -i remotes/%s/master" % self._remote,
exc.args[0])
rebased = ("Errors running git rebase --rebase-merges "
"-i remotes/%s/master" % self._remote in exc.args[0] or
"Errors running git rebase --preserve-merges "
"-i remotes/%s/master" % self._remote in exc.args[0])
self.assertTrue(rebased)
self.assertIn("It is likely that your change has a merge conflict.",
exc.args[0])
@ -341,9 +343,11 @@ class GitReviewTestCase(tests.BaseGitReviewTestCase):
self._dir('test', 'new_test_file.txt'))
review_res = self._run_git_review('-v')
self.assertIn(
"Running: git rebase -p -i remotes/%s/master" % self._remote,
review_res)
rebased = ("Running: git rebase --rebase-merges "
"-i remotes/%s/master" % self._remote in review_res or
"Running: git rebase --preserve-merges "
"-i remotes/%s/master" % self._remote in review_res)
self.assertTrue(rebased)
self.assertEqual(self._run_git('rev-parse', 'HEAD^1'), head_1)
def test_uploads_with_nondefault_rebase(self):
@ -383,8 +387,10 @@ class GitReviewTestCase(tests.BaseGitReviewTestCase):
review_res = self._run_git_review('-v')
# no rebase needed; if it breaks it would try to rebase to master
self.assertNotIn("Running: git rebase -p -i remotes/origin/master",
review_res)
self.assertNotIn("Running: git rebase --rebase-merges "
"-i remotes/origin/master", review_res)
self.assertNotIn("Running: git rebase --preserve-merges "
"-i remotes/origin/master", review_res)
# Don't need to query gerrit for the branch as the second half
# of this test will work only if the branch was correctly
# stored in gerrit
@ -401,8 +407,11 @@ class GitReviewTestCase(tests.BaseGitReviewTestCase):
self.assertEqual(change_id, new_change_id)
review_res = self._run_git_review('-v')
# caused the right thing to happen
self.assertIn("Running: git rebase -p -i remotes/origin/maint",
review_res)
rebased = ("Running: git rebase --rebase-merges "
"-i remotes/origin/maint" in review_res or
"Running: git rebase --preserve-merges "
"-i remotes/origin/maint" in review_res)
self.assertTrue(rebased)
# track different branch than expected in changeset
branch = self._run_git('rev-parse', '--abbrev-ref', 'HEAD')