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https://github.com/git/git
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revert: allow cherry-pick --continue to commit before resuming
When "git cherry-pick ..bar" encounters conflicts, permit the operator to use cherry-pick --continue after resolving them as a shortcut for "git commit && git cherry-pick --continue" to record the resolution and carry on with the rest of the sequence. This improves the analogy with "git rebase" (in olden days --continue was the way to preserve authorship when a rebase encountered conflicts) and fits well with a general UI goal of making "git cmd --continue" save humans the trouble of deciding what to do next. Example: after encountering a conflict from running "git cherry-pick foo bar baz": CONFLICT (content): Merge conflict in main.c error: could not apply f78a8d98c... bar! hint: after resolving the conflicts, mark the corrected paths hint: with 'git add <paths>' or 'git rm <paths>' hint: and commit the result with 'git commit' We edit main.c to resolve the conflict, mark it acceptable with "git add main.c", and can run "cherry-pick --continue" to resume the sequence. $ git cherry-pick --continue [editor opens to confirm commit message] [master 78c8a8c98] bar! 1 files changed, 1 insertions(+), 1 deletions(-) [master 87ca8798c] baz! 1 files changed, 1 insertions(+), 1 deletions(-) This is done for both codepaths to pick multiple commits and a single commit. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder
Junio C Hamano
parent
1df9bf46d6
commit
093a309136
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@ -1038,18 +1038,35 @@ static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts)
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return 0;
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}
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static int continue_single_pick(void)
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{
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const char *argv[] = { "commit", NULL };
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if (!file_exists(git_path("CHERRY_PICK_HEAD")) &&
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!file_exists(git_path("REVERT_HEAD")))
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return error(_("no cherry-pick or revert in progress"));
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return run_command_v_opt(argv, RUN_GIT_CMD);
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}
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static int sequencer_continue(struct replay_opts *opts)
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{
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struct commit_list *todo_list = NULL;
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if (!file_exists(git_path(SEQ_TODO_FILE)))
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return error(_("No %s in progress"), action_name(opts));
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return continue_single_pick();
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read_populate_opts(&opts);
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read_populate_todo(&todo_list, opts);
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/* Verify that the conflict has been resolved */
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if (!index_differs_from("HEAD", 0))
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todo_list = todo_list->next;
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if (file_exists(git_path("CHERRY_PICK_HEAD")) ||
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file_exists(git_path("REVERT_HEAD"))) {
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int ret = continue_single_pick();
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if (ret)
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return ret;
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}
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if (index_differs_from("HEAD", 0))
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return error_dirty_index(opts);
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todo_list = todo_list->next;
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return pick_commits(todo_list, opts);
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}
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@ -2,6 +2,7 @@
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test_description='Test cherry-pick continuation features
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+ conflicting: rewrites unrelated to conflicting
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+ yetanotherpick: rewrites foo to e
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+ anotherpick: rewrites foo to d
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+ picked: rewrites foo to c
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@ -27,6 +28,7 @@ test_cmp_rev () {
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}
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test_expect_success setup '
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git config advice.detachedhead false
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echo unrelated >unrelated &&
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git add unrelated &&
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test_commit initial foo a &&
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@ -35,8 +37,8 @@ test_expect_success setup '
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test_commit picked foo c &&
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test_commit anotherpick foo d &&
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test_commit yetanotherpick foo e &&
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git config advice.detachedhead false
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pristine_detach initial &&
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test_commit conflicting unrelated
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'
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test_expect_success 'cherry-pick persists data on failure' '
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@ -243,7 +245,66 @@ test_expect_success '--continue complains when there are unresolved conflicts' '
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test_must_fail git cherry-pick --continue
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'
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test_expect_success '--continue continues after conflicts are resolved' '
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test_expect_success '--continue of single cherry-pick' '
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pristine_detach initial &&
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echo c >expect &&
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test_must_fail git cherry-pick picked &&
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echo c >foo &&
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git add foo &&
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git cherry-pick --continue &&
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test_cmp expect foo &&
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test_cmp_rev initial HEAD^ &&
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git diff --exit-code HEAD &&
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test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
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'
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test_expect_success '--continue of single revert' '
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pristine_detach initial &&
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echo resolved >expect &&
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echo "Revert \"picked\"" >expect.msg &&
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test_must_fail git revert picked &&
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echo resolved >foo &&
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git add foo &&
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git cherry-pick --continue &&
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git diff --exit-code HEAD &&
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test_cmp expect foo &&
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test_cmp_rev initial HEAD^ &&
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git diff-tree -s --pretty=tformat:%s HEAD >msg &&
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test_cmp expect.msg msg &&
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test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
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test_must_fail git rev-parse --verify REVERT_HEAD
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'
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test_expect_success '--continue after resolving conflicts' '
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pristine_detach initial &&
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echo d >expect &&
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cat >expect.log <<-\EOF &&
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OBJID
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:100644 100644 OBJID OBJID M foo
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OBJID
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:100644 100644 OBJID OBJID M foo
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OBJID
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:100644 100644 OBJID OBJID M unrelated
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OBJID
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:000000 100644 OBJID OBJID A foo
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:000000 100644 OBJID OBJID A unrelated
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EOF
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test_must_fail git cherry-pick base..anotherpick &&
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echo c >foo &&
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git add foo &&
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git cherry-pick --continue &&
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{
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git rev-list HEAD |
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git diff-tree --root --stdin |
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sed "s/$_x40/OBJID/g"
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} >actual.log &&
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test_cmp expect foo &&
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test_cmp expect.log actual.log
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'
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test_expect_success '--continue after resolving conflicts and committing' '
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pristine_detach initial &&
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test_must_fail git cherry-pick base..anotherpick &&
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echo "c" >foo &&
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@ -270,6 +331,29 @@ test_expect_success '--continue continues after conflicts are resolved' '
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test_cmp expect actual
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'
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test_expect_success '--continue asks for help after resolving patch to nil' '
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pristine_detach conflicting &&
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test_must_fail git cherry-pick initial..picked &&
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test_cmp_rev unrelatedpick CHERRY_PICK_HEAD &&
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git checkout HEAD -- unrelated &&
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test_must_fail git cherry-pick --continue 2>msg &&
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test_i18ngrep "The previous cherry-pick is now empty" msg
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'
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test_expect_failure 'follow advice and skip nil patch' '
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pristine_detach conflicting &&
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test_must_fail git cherry-pick initial..picked &&
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git checkout HEAD -- unrelated &&
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test_must_fail git cherry-pick --continue &&
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git reset &&
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git cherry-pick --continue &&
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git rev-list initial..HEAD >commits &&
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test_line_count = 3 commits
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'
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test_expect_success '--continue respects opts' '
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pristine_detach initial &&
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test_must_fail git cherry-pick -x base..anotherpick &&
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@ -288,6 +372,29 @@ test_expect_success '--continue respects opts' '
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grep "cherry picked from" anotherpick_msg
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'
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test_expect_success '--continue of single-pick respects -x' '
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pristine_detach initial &&
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test_must_fail git cherry-pick -x picked &&
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echo c >foo &&
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git add foo &&
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git cherry-pick --continue &&
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test_path_is_missing .git/sequencer &&
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git cat-file commit HEAD >msg &&
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grep "cherry picked from" msg
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'
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test_expect_success '--continue respects -x in first commit in multi-pick' '
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pristine_detach initial &&
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test_must_fail git cherry-pick -x picked anotherpick &&
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echo c >foo &&
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git add foo &&
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git cherry-pick --continue &&
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test_path_is_missing .git/sequencer &&
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git cat-file commit HEAD^ >msg &&
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picked=$(git rev-parse --verify picked) &&
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grep "cherry picked from.*$picked" msg
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'
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test_expect_success '--signoff is not automatically propagated to resolved conflict' '
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pristine_detach initial &&
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test_must_fail git cherry-pick --signoff base..anotherpick &&
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@ -306,6 +413,32 @@ test_expect_success '--signoff is not automatically propagated to resolved confl
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grep "Signed-off-by:" anotherpick_msg
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'
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test_expect_success '--signoff dropped for implicit commit of resolution, multi-pick case' '
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pristine_detach initial &&
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test_must_fail git cherry-pick -s picked anotherpick &&
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echo c >foo &&
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git add foo &&
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git cherry-pick --continue &&
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git diff --exit-code HEAD &&
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test_cmp_rev initial HEAD^^ &&
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git cat-file commit HEAD^ >msg &&
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! grep Signed-off-by: msg
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'
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test_expect_success 'sign-off needs to be reaffirmed after conflict resolution, single-pick case' '
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pristine_detach initial &&
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test_must_fail git cherry-pick -s picked &&
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echo c >foo &&
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git add foo &&
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git cherry-pick --continue &&
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git diff --exit-code HEAD &&
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test_cmp_rev initial HEAD^ &&
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git cat-file commit HEAD >msg &&
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! grep Signed-off-by: msg
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'
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test_expect_success 'malformed instruction sheet 1' '
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pristine_detach initial &&
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test_must_fail git cherry-pick base..anotherpick &&
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