[PATCH 0/3] sequencer: start running post-commit hook again

[PATCH 0/3] sequencer: start running post-commit hook again

[Phillip Wood via GitGitGadget]

When I converted the sequencer to avoid forking git commit i forgot about
the post-commit hook. These patches are based on
pw/rebase-i-show-HEAD-to-reword, otherwise the new test fails as that branch
changes the number of commits we make.

Phillip Wood (3):
  sequencer.h fix placement of #endif
  sequencer: use run_commit_hook()
  sequencer: run post-commit hook

 builtin/commit.c              | 24 +----------------
 commit.h                      |  3 ---
 sequencer.c                   | 50 +++++++++++++++++++++++++++--------
 sequencer.h                   |  6 +++--
 t/t3404-rebase-interactive.sh | 17 ++++++++++++
 5 files changed, 61 insertions(+), 39 deletions(-)


base-commit: b0a3186140dbc7bd64cbc6ef733386a0f1eb6a4d
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-388%2Fphillipwood%2Fwip%2Frebase-commit-hooks-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-388/phillipwood/wip/rebase-commit-hooks-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/388
-- 
gitgitgadget

[PATCH 2/3] sequencer: use run_commit_hook()

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

This simplifies the implementation of run_prepare_commit_msg_hook() and
will be used in the next commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 builtin/commit.c | 22 ----------------------
 commit.h         |  3 ---
 sequencer.c      | 45 ++++++++++++++++++++++++++++++++++-----------
 sequencer.h      |  2 ++
 4 files changed, 36 insertions(+), 36 deletions(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index 1921401117..d898a57f5d 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1443,28 +1443,6 @@ static int git_commit_config(const char *k, const char *v, void *cb)
 	return git_status_config(k, v, s);
 }
 
-int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...)
-{
-	struct argv_array hook_env = ARGV_ARRAY_INIT;
-	va_list args;
-	int ret;
-
-	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", index_file);
-
-	/*
-	 * Let the hook know that no editor will be launched.
-	 */
-	if (!editor_is_used)
-		argv_array_push(&hook_env, "GIT_EDITOR=:");
-
-	va_start(args, name);
-	ret = run_hook_ve(hook_env.argv,name, args);
-	va_end(args);
-	argv_array_clear(&hook_env);
-
-	return ret;
-}
-
 int cmd_commit(int argc, const char **argv, const char *prefix)
 {
 	const char *argv_gc_auto[] = {"gc", "--auto", NULL};
diff --git a/commit.h b/commit.h
index f5295ca7f3..37684a35f0 100644
--- a/commit.h
+++ b/commit.h
@@ -389,7 +389,4 @@ void verify_merge_signature(struct commit *commit, int verbose);
 int compare_commits_by_commit_date(const void *a_, const void *b_, void *unused);
 int compare_commits_by_gen_then_commit_date(const void *a_, const void *b_, void *unused);
 
-LAST_ARG_MUST_BE_NULL
-int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
-
 #endif /* COMMIT_H */
diff --git a/sequencer.c b/sequencer.c
index 2adcf5a639..3ce578c40b 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -1123,28 +1123,51 @@ void commit_post_rewrite(struct repository *r,
 	run_rewrite_hook(&old_head->object.oid, new_head);
 }
 
+int run_commit_hook(int editor_is_used, const char *index_file,
+		    const char *name, ...)
+{
+	struct argv_array hook_env = ARGV_ARRAY_INIT;
+	va_list args;
+	int ret;
+
+	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", index_file);
+
+	/*
+	 * Let the hook know that no editor will be launched.
+	 */
+	if (!editor_is_used)
+		argv_array_push(&hook_env, "GIT_EDITOR=:");
+
+	va_start(args, name);
+	ret = run_hook_ve(hook_env.argv,name, args);
+	va_end(args);
+	argv_array_clear(&hook_env);
+
+	return ret;
+}
+
 static int run_prepare_commit_msg_hook(struct repository *r,
 				       struct strbuf *msg,
 				       const char *commit)
 {
 	struct argv_array hook_env = ARGV_ARRAY_INIT;
-	int ret;
-	const char *name;
+	int ret = 0;
+	const char *name, *arg1 = NULL, *arg2 = NULL;
 
 	name = git_path_commit_editmsg();
 	if (write_message(msg->buf, msg->len, name, 0))
 		return -1;
 
-	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", r->index_file);
-	argv_array_push(&hook_env, "GIT_EDITOR=:");
-	if (commit)
-		ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name,
-				  "commit", commit, NULL);
-	else
-		ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name,
-				  "message", NULL);
-	if (ret)
+	if (commit) {
+		arg1 = "commit";
+		arg2 = commit;
+	} else {
+		arg1 = "message";
+	}
+	if (run_commit_hook(0, r->index_file, "prepare-commit-msg", name,
+			    arg1, arg2, NULL))
 		ret = error(_("'prepare-commit-msg' hook failed"));
+
 	argv_array_clear(&hook_env);
 
 	return ret;
diff --git a/sequencer.h b/sequencer.h
index ac66892d71..b0419d6ddb 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -201,4 +201,6 @@ int write_basic_state(struct replay_opts *opts, const char *head_name,
 void sequencer_post_commit_cleanup(struct repository *r);
 int sequencer_get_last_command(struct repository* r,
 			       enum replay_action *action);
+LAST_ARG_MUST_BE_NULL
+int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
 #endif /* SEQUENCER_H */
-- 
gitgitgadget

[PATCH 1/3] sequencer.h fix placement of #endif

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

Commit 65850686cf ("rebase -i: rewrite write_basic_state() in C",
2018-08-28) accidentially added new function declarations after
the #endif at the end of the include guard.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 sequencer.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sequencer.h b/sequencer.h
index 0c494b83d4..ac66892d71 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -195,11 +195,10 @@ void print_commit_summary(struct repository *repo,
 
 int read_author_script(const char *path, char **name, char **email, char **date,
 		       int allow_missing);
-#endif
-
 void parse_strategy_opts(struct replay_opts *opts, char *raw_opts);
 int write_basic_state(struct replay_opts *opts, const char *head_name,
 		      struct commit *onto, const char *orig_head);
 void sequencer_post_commit_cleanup(struct repository *r);
 int sequencer_get_last_command(struct repository* r,
 			       enum replay_action *action);
+#endif /* SEQUENCER_H */
-- 
gitgitgadget

[PATCH 3/3] sequencer: run post-commit hook

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

Prior to commit 356ee4659b ("sequencer: try to commit without forking
'git commit'", 2017-11-24) the sequencer would always run the
post-commit hook after each pick or revert as it forked `git commit` to
create the commit. The conversion to committing without forking `git
commit` omitted to call the post-commit hook after creating the commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 builtin/commit.c              |  2 +-
 sequencer.c                   |  5 +++++
 sequencer.h                   |  1 +
 t/t3404-rebase-interactive.sh | 17 +++++++++++++++++
 4 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index d898a57f5d..adb8c89c60 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1653,7 +1653,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 
 	repo_rerere(the_repository, 0);
 	run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
-	run_commit_hook(use_editor, get_index_file(), "post-commit", NULL);
+	run_post_commit_hook(use_editor, get_index_file());
 	if (amend && !no_post_rewrite) {
 		commit_post_rewrite(the_repository, current_head, &oid);
 	}
diff --git a/sequencer.c b/sequencer.c
index 3ce578c40b..b4947f6969 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -1173,6 +1173,10 @@ static int run_prepare_commit_msg_hook(struct repository *r,
 	return ret;
 }
 
+void run_post_commit_hook(int editor_is_used, const char *index_file) {
+	run_commit_hook(editor_is_used, index_file, "post-commit", NULL);
+}
+
 static const char implicit_ident_advice_noconfig[] =
 N_("Your name and email address were configured automatically based\n"
 "on your username and hostname. Please check that they are accurate.\n"
@@ -1427,6 +1431,7 @@ static int try_to_commit(struct repository *r,
 		goto out;
 	}
 
+	run_post_commit_hook(0, r->index_file);
 	if (flags & AMEND_MSG)
 		commit_post_rewrite(r, current_head, oid);
 
diff --git a/sequencer.h b/sequencer.h
index b0419d6ddb..e3e73c5635 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -203,4 +203,5 @@ int sequencer_get_last_command(struct repository* r,
 			       enum replay_action *action);
 LAST_ARG_MUST_BE_NULL
 int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
+void run_post_commit_hook(int editor_is_used, const char *index_file);
 #endif /* SEQUENCER_H */
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index d2f1d5bd23..d9217235b6 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -1467,4 +1467,21 @@ test_expect_success 'valid author header when author contains single quote' '
 	test_cmp expected actual
 '
 
+test_expect_success 'post-commit hook is called' '
+	test_when_finished "rm -f .git/hooks/post-commit commits" &&
+	mkdir -p .git/hooks &&
+	write_script .git/hooks/post-commit <<-\EOS &&
+	git rev-parse HEAD >>commits
+	EOS
+	set_fake_editor &&
+	FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
+	echo x>file3 &&
+	git add file3 &&
+	FAKE_COMMIT_MESSAGE=edited git rebase --continue &&
+	# rev-list does not support -g --reverse
+	git rev-list --no-walk=unsorted HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} \
+		HEAD@{1} HEAD >expected &&
+	test_cmp expected commits
+'
+
 test_done
-- 
gitgitgadget

Re: [PATCH 2/3] sequencer: use run_commit_hook()

[Johannes Schindelin]

Hi Phillip,

On Thu, 10 Oct 2019, Phillip Wood via GitGitGadget wrote:

> From: Phillip Wood <phillip.wood@dunelm.org.uk>
>
> This simplifies the implementation of run_prepare_commit_msg_hook() and
> will be used in the next commit.
>
> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
> ---
>  builtin/commit.c | 22 ----------------------
>  commit.h         |  3 ---
>  sequencer.c      | 45 ++++++++++++++++++++++++++++++++++-----------
>  sequencer.h      |  2 ++
>  4 files changed, 36 insertions(+), 36 deletions(-)

Hmm. I would have thought that `commit.c` would be a more logical home
for that function (and that the declaration could remain in `commit.h`)?

The general thrust is good, of course: `commit.h` is supposedly a
`libgit.a` header, but `builtin/commit.o` is _not_ included in
`libgit.a`...

Thanks,
Dscho

>
> diff --git a/builtin/commit.c b/builtin/commit.c
> index 1921401117..d898a57f5d 100644
> --- a/builtin/commit.c
> +++ b/builtin/commit.c
> @@ -1443,28 +1443,6 @@ static int git_commit_config(const char *k, const char *v, void *cb)
>  	return git_status_config(k, v, s);
>  }
>
> -int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...)
> -{
> -	struct argv_array hook_env = ARGV_ARRAY_INIT;
> -	va_list args;
> -	int ret;
> -
> -	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", index_file);
> -
> -	/*
> -	 * Let the hook know that no editor will be launched.
> -	 */
> -	if (!editor_is_used)
> -		argv_array_push(&hook_env, "GIT_EDITOR=:");
> -
> -	va_start(args, name);
> -	ret = run_hook_ve(hook_env.argv,name, args);
> -	va_end(args);
> -	argv_array_clear(&hook_env);
> -
> -	return ret;
> -}
> -
>  int cmd_commit(int argc, const char **argv, const char *prefix)
>  {
>  	const char *argv_gc_auto[] = {"gc", "--auto", NULL};
> diff --git a/commit.h b/commit.h
> index f5295ca7f3..37684a35f0 100644
> --- a/commit.h
> +++ b/commit.h
> @@ -389,7 +389,4 @@ void verify_merge_signature(struct commit *commit, int verbose);
>  int compare_commits_by_commit_date(const void *a_, const void *b_, void *unused);
>  int compare_commits_by_gen_then_commit_date(const void *a_, const void *b_, void *unused);
>
> -LAST_ARG_MUST_BE_NULL
> -int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
> -
>  #endif /* COMMIT_H */
> diff --git a/sequencer.c b/sequencer.c
> index 2adcf5a639..3ce578c40b 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -1123,28 +1123,51 @@ void commit_post_rewrite(struct repository *r,
>  	run_rewrite_hook(&old_head->object.oid, new_head);
>  }
>
> +int run_commit_hook(int editor_is_used, const char *index_file,
> +		    const char *name, ...)
> +{
> +	struct argv_array hook_env = ARGV_ARRAY_INIT;
> +	va_list args;
> +	int ret;
> +
> +	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", index_file);
> +
> +	/*
> +	 * Let the hook know that no editor will be launched.
> +	 */
> +	if (!editor_is_used)
> +		argv_array_push(&hook_env, "GIT_EDITOR=:");
> +
> +	va_start(args, name);
> +	ret = run_hook_ve(hook_env.argv,name, args);
> +	va_end(args);
> +	argv_array_clear(&hook_env);
> +
> +	return ret;
> +}
> +
>  static int run_prepare_commit_msg_hook(struct repository *r,
>  				       struct strbuf *msg,
>  				       const char *commit)
>  {
>  	struct argv_array hook_env = ARGV_ARRAY_INIT;
> -	int ret;
> -	const char *name;
> +	int ret = 0;
> +	const char *name, *arg1 = NULL, *arg2 = NULL;
>
>  	name = git_path_commit_editmsg();
>  	if (write_message(msg->buf, msg->len, name, 0))
>  		return -1;
>
> -	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", r->index_file);
> -	argv_array_push(&hook_env, "GIT_EDITOR=:");
> -	if (commit)
> -		ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name,
> -				  "commit", commit, NULL);
> -	else
> -		ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name,
> -				  "message", NULL);
> -	if (ret)
> +	if (commit) {
> +		arg1 = "commit";
> +		arg2 = commit;
> +	} else {
> +		arg1 = "message";
> +	}
> +	if (run_commit_hook(0, r->index_file, "prepare-commit-msg", name,
> +			    arg1, arg2, NULL))
>  		ret = error(_("'prepare-commit-msg' hook failed"));
> +
>  	argv_array_clear(&hook_env);
>
>  	return ret;
> diff --git a/sequencer.h b/sequencer.h
> index ac66892d71..b0419d6ddb 100644
> --- a/sequencer.h
> +++ b/sequencer.h
> @@ -201,4 +201,6 @@ int write_basic_state(struct replay_opts *opts, const char *head_name,
>  void sequencer_post_commit_cleanup(struct repository *r);
>  int sequencer_get_last_command(struct repository* r,
>  			       enum replay_action *action);
> +LAST_ARG_MUST_BE_NULL
> +int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
>  #endif /* SEQUENCER_H */
> --
> gitgitgadget
>
>

Re: [PATCH 3/3] sequencer: run post-commit hook

[Johannes Schindelin]

Hi Phillip,

On Thu, 10 Oct 2019, Phillip Wood via GitGitGadget wrote:

> From: Phillip Wood <phillip.wood@dunelm.org.uk>
>
> Prior to commit 356ee4659b ("sequencer: try to commit without forking
> 'git commit'", 2017-11-24) the sequencer would always run the
> post-commit hook after each pick or revert as it forked `git commit` to
> create the commit. The conversion to committing without forking `git
> commit` omitted to call the post-commit hook after creating the commit.
>
> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>

Makes sense.

> ---
>  builtin/commit.c              |  2 +-
>  sequencer.c                   |  5 +++++
>  sequencer.h                   |  1 +
>  t/t3404-rebase-interactive.sh | 17 +++++++++++++++++
>  4 files changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/builtin/commit.c b/builtin/commit.c
> index d898a57f5d..adb8c89c60 100644
> --- a/builtin/commit.c
> +++ b/builtin/commit.c
> @@ -1653,7 +1653,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
>
>  	repo_rerere(the_repository, 0);
>  	run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
> -	run_commit_hook(use_editor, get_index_file(), "post-commit", NULL);
> +	run_post_commit_hook(use_editor, get_index_file());

Does it really make sense to abstract the hook name away? It adds a lot
of churn for just two callers...

>  	if (amend && !no_post_rewrite) {
>  		commit_post_rewrite(the_repository, current_head, &oid);
>  	}
> diff --git a/sequencer.c b/sequencer.c
> index 3ce578c40b..b4947f6969 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -1173,6 +1173,10 @@ static int run_prepare_commit_msg_hook(struct repository *r,
>  	return ret;
>  }
>
> +void run_post_commit_hook(int editor_is_used, const char *index_file) {
> +	run_commit_hook(editor_is_used, index_file, "post-commit", NULL);
> +}
> +

If we must have a separate `run_post_commit_hook()`, then it should be
an `inline` function, defined in the header. Or even a macro to begin
with.

>  static const char implicit_ident_advice_noconfig[] =
>  N_("Your name and email address were configured automatically based\n"
>  "on your username and hostname. Please check that they are accurate.\n"
> @@ -1427,6 +1431,7 @@ static int try_to_commit(struct repository *r,
>  		goto out;
>  	}
>
> +	run_post_commit_hook(0, r->index_file);

So this is the _actual_ change of this patch.

>  	if (flags & AMEND_MSG)
>  		commit_post_rewrite(r, current_head, oid);
>
> diff --git a/sequencer.h b/sequencer.h
> index b0419d6ddb..e3e73c5635 100644
> --- a/sequencer.h
> +++ b/sequencer.h
> @@ -203,4 +203,5 @@ int sequencer_get_last_command(struct repository* r,
>  			       enum replay_action *action);
>  LAST_ARG_MUST_BE_NULL
>  int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
> +void run_post_commit_hook(int editor_is_used, const char *index_file);
>  #endif /* SEQUENCER_H */
> diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
> index d2f1d5bd23..d9217235b6 100755
> --- a/t/t3404-rebase-interactive.sh
> +++ b/t/t3404-rebase-interactive.sh
> @@ -1467,4 +1467,21 @@ test_expect_success 'valid author header when author contains single quote' '
>  	test_cmp expected actual
>  '
>
> +test_expect_success 'post-commit hook is called' '
> +	test_when_finished "rm -f .git/hooks/post-commit commits" &&
> +	mkdir -p .git/hooks &&
> +	write_script .git/hooks/post-commit <<-\EOS &&
> +	git rev-parse HEAD >>commits

Should `commits` be initialized before this script is written, e.g.
using

	>commits &&

?

> +	EOS
> +	set_fake_editor &&

The `set_fake_editor` function sets a global environment variable, and
therefore needs to be run in a subshell. Therefore, this line (as well
as the next one) need to be enclosed in `( ... )`.

> +	FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
> +	echo x>file3 &&

We usually leave no space after the `>`, but we _do_ leave a space
_before_ the `>`.

> +	git add file3 &&
> +	FAKE_COMMIT_MESSAGE=edited git rebase --continue &&
> +	# rev-list does not support -g --reverse
> +	git rev-list --no-walk=unsorted HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} \
> +		HEAD@{1} HEAD >expected &&

Wouldn't this be better as:

	git rev-parse HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} HEAD@{1} HEAD \
		>expect &&

> +	test_cmp expected commits

We usually use the name `expect` instead of `expected` in the test
suite.

Thanks,
Dscho

> +'
> +
>  test_done
> --
> gitgitgadget
>

Re: [PATCH 2/3] sequencer: use run_commit_hook()

[Junio C Hamano]

Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:

>>  builtin/commit.c | 22 ----------------------
>>  commit.h         |  3 ---
>>  sequencer.c      | 45 ++++++++++++++++++++++++++++++++++-----------
>>  sequencer.h      |  2 ++
>>  4 files changed, 36 insertions(+), 36 deletions(-)
>
> Hmm. I would have thought that `commit.c` would be a more logical home
> for that function (and that the declaration could remain in `commit.h`)?

Good correction.

Thanks.

Re: [PATCH 3/3] sequencer: run post-commit hook

[Junio C Hamano]

Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:

>> diff --git a/builtin/commit.c b/builtin/commit.c
>> index d898a57f5d..adb8c89c60 100644
>> --- a/builtin/commit.c
>> +++ b/builtin/commit.c
>> @@ -1653,7 +1653,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
>>
>>  	repo_rerere(the_repository, 0);
>>  	run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
>> -	run_commit_hook(use_editor, get_index_file(), "post-commit", NULL);
>> +	run_post_commit_hook(use_editor, get_index_file());
>
> Does it really make sense to abstract the hook name away? It adds a lot
> of churn for just two callers...

After looking at the three patches, I do not think so.

>> diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
>> index d2f1d5bd23..d9217235b6 100755
>> --- a/t/t3404-rebase-interactive.sh
>> +++ b/t/t3404-rebase-interactive.sh
>> @@ -1467,4 +1467,21 @@ test_expect_success 'valid author header when author contains single quote' '
>>  	test_cmp expected actual
>>  '
>>
>> +test_expect_success 'post-commit hook is called' '
>> +	test_when_finished "rm -f .git/hooks/post-commit commits" &&
>> +	mkdir -p .git/hooks &&
>> +	write_script .git/hooks/post-commit <<-\EOS &&
>> +	git rev-parse HEAD >>commits
>
> Should `commits` be initialized before this script is written, e.g.
> using
>
> 	>commits &&

Yes.

>> +	git rev-list --no-walk=unsorted HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} \
>> +		HEAD@{1} HEAD >expected &&
>
> Wouldn't this be better as:
>
> 	git rev-parse HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} HEAD@{1} HEAD \
> 		>expect &&
>

Yes.

>> +	test_cmp expected commits
>
> We usually use the name `expect` instead of `expected` in the test
> suite.

And the actual output file is called 'actual'.

Thanks.

Re: [PATCH 3/3] sequencer: run post-commit hook

[Phillip Wood]

Hi Dscho

On 10/10/2019 22:31, Johannes Schindelin wrote:
> Hi Phillip,
> 
> On Thu, 10 Oct 2019, Phillip Wood via GitGitGadget wrote:
> 
>> From: Phillip Wood <phillip.wood@dunelm.org.uk>
>>
>> Prior to commit 356ee4659b ("sequencer: try to commit without forking
>> 'git commit'", 2017-11-24) the sequencer would always run the
>> post-commit hook after each pick or revert as it forked `git commit` to
>> create the commit. The conversion to committing without forking `git
>> commit` omitted to call the post-commit hook after creating the commit.
>>
>> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
> 
> Makes sense.
> 
>> ---
>>   builtin/commit.c              |  2 +-
>>   sequencer.c                   |  5 +++++
>>   sequencer.h                   |  1 +
>>   t/t3404-rebase-interactive.sh | 17 +++++++++++++++++
>>   4 files changed, 24 insertions(+), 1 deletion(-)
>>
>> diff --git a/builtin/commit.c b/builtin/commit.c
>> index d898a57f5d..adb8c89c60 100644
>> --- a/builtin/commit.c
>> +++ b/builtin/commit.c
>> @@ -1653,7 +1653,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
>>
>>   	repo_rerere(the_repository, 0);
>>   	run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
>> -	run_commit_hook(use_editor, get_index_file(), "post-commit", NULL);
>> +	run_post_commit_hook(use_editor, get_index_file());
> 
> Does it really make sense to abstract the hook name away? It adds a lot
> of churn for just two callers...

I'll drop the new function in the reroll

>>   	if (amend && !no_post_rewrite) {
>>   		commit_post_rewrite(the_repository, current_head, &oid);
>>   	}
>> diff --git a/sequencer.c b/sequencer.c
>> index 3ce578c40b..b4947f6969 100644
>> --- a/sequencer.c
>> +++ b/sequencer.c
>> @@ -1173,6 +1173,10 @@ static int run_prepare_commit_msg_hook(struct repository *r,
>>   	return ret;
>>   }
>>
>> +void run_post_commit_hook(int editor_is_used, const char *index_file) {
>> +	run_commit_hook(editor_is_used, index_file, "post-commit", NULL);
>> +}
>> +
> 
> If we must have a separate `run_post_commit_hook()`, then it should be
> an `inline` function, defined in the header. Or even a macro to begin
> with.
> 
>>   static const char implicit_ident_advice_noconfig[] =
>>   N_("Your name and email address were configured automatically based\n"
>>   "on your username and hostname. Please check that they are accurate.\n"
>> @@ -1427,6 +1431,7 @@ static int try_to_commit(struct repository *r,
>>   		goto out;
>>   	}
>>
>> +	run_post_commit_hook(0, r->index_file);
> 
> So this is the _actual_ change of this patch.
> 
>>   	if (flags & AMEND_MSG)
>>   		commit_post_rewrite(r, current_head, oid);
>>
>> diff --git a/sequencer.h b/sequencer.h
>> index b0419d6ddb..e3e73c5635 100644
>> --- a/sequencer.h
>> +++ b/sequencer.h
>> @@ -203,4 +203,5 @@ int sequencer_get_last_command(struct repository* r,
>>   			       enum replay_action *action);
>>   LAST_ARG_MUST_BE_NULL
>>   int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
>> +void run_post_commit_hook(int editor_is_used, const char *index_file);
>>   #endif /* SEQUENCER_H */
>> diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
>> index d2f1d5bd23..d9217235b6 100755
>> --- a/t/t3404-rebase-interactive.sh
>> +++ b/t/t3404-rebase-interactive.sh
>> @@ -1467,4 +1467,21 @@ test_expect_success 'valid author header when author contains single quote' '
>>   	test_cmp expected actual
>>   '
>>
>> +test_expect_success 'post-commit hook is called' '
>> +	test_when_finished "rm -f .git/hooks/post-commit commits" &&
>> +	mkdir -p .git/hooks &&
>> +	write_script .git/hooks/post-commit <<-\EOS &&
>> +	git rev-parse HEAD >>commits
> 
> Should `commits` be initialized before this script is written, e.g.
> using
> 
> 	>commits &&

Good point, especially if it is renamed to actual as Junio suggests

>> +	EOS
>> +	set_fake_editor &&
> 
> The `set_fake_editor` function sets a global environment variable, and
> therefore needs to be run in a subshell. Therefore, this line (as well
> as the next one) need to be enclosed in `( ... )`.

There are ~80 instances of 
set_fake_editor/test_set_editor/set_cat_todo_editor in that file that 
are not in subshells. I've converted them in a preparatory patch (that 
was fun), removing about 20 that can now safely rely on EDITOR=: 
(hopefully that will ameliorate the performance hit of ~60 extra 
subshells a little)

>> +	FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
>> +	echo x>file3 &&
> 
> We usually leave no space after the `>`, but we _do_ leave a space
> _before_ the `>`.
> 
>> +	git add file3 &&
>> +	FAKE_COMMIT_MESSAGE=edited git rebase --continue &&
>> +	# rev-list does not support -g --reverse
>> +	git rev-list --no-walk=unsorted HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} \
>> +		HEAD@{1} HEAD >expected &&
> 
> Wouldn't this be better as:
> 
> 	git rev-parse HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} HEAD@{1} HEAD \
> 		>expect &&

Good point

>> +	test_cmp expected commits
> 
> We usually use the name `expect` instead of `expected` in the test
> suite.

OK

Thanks for looking at this series

Phillip

> Thanks,
> Dscho
> 
>> +'
>> +
>>   test_done
>> --
>> gitgitgadget
>>

Re: [PATCH 2/3] sequencer: use run_commit_hook()

[Phillip Wood]

Hi Dscho & Junio

On 11/10/2019 05:24, Junio C Hamano wrote:
> Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:
> 
>>>  builtin/commit.c | 22 ----------------------
>>>  commit.h         |  3 ---
>>>  sequencer.c      | 45 ++++++++++++++++++++++++++++++++++-----------
>>>  sequencer.h      |  2 ++
>>>  4 files changed, 36 insertions(+), 36 deletions(-)
>>
>> Hmm. I would have thought that `commit.c` would be a more logical home
>> for that function (and that the declaration could remain in `commit.h`)?
> 
> Good correction.

There are some other public commit related functions in sequencer.c -
print_commit_summary(), commit_post_rewrite(), rest_is_empty(),
cleanup_message(), message_is_empty(), template_untouched(),
update_head_with_reflog() . Would you like to see them moved to commit.c
(probably as a separate series)?

Best Wishes

Phillip

> 
> Thanks.
> 

Re: [PATCH 2/3] sequencer: use run_commit_hook()

[Johannes Schindelin]

Hi Phillip,

On Mon, 14 Oct 2019, Phillip Wood wrote:

> Hi Dscho & Junio
>
> On 11/10/2019 05:24, Junio C Hamano wrote:
> > Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:
> >
> >>>  builtin/commit.c | 22 ----------------------
> >>>  commit.h         |  3 ---
> >>>  sequencer.c      | 45 ++++++++++++++++++++++++++++++++++-----------
> >>>  sequencer.h      |  2 ++
> >>>  4 files changed, 36 insertions(+), 36 deletions(-)
> >>
> >> Hmm. I would have thought that `commit.c` would be a more logical home
> >> for that function (and that the declaration could remain in `commit.h`)?
> >
> > Good correction.
>
> There are some other public commit related functions in sequencer.c -
> print_commit_summary(), commit_post_rewrite(), rest_is_empty(),
> cleanup_message(), message_is_empty(), template_untouched(),
> update_head_with_reflog() . Would you like to see them moved to commit.c
> (probably as a separate series)?

I don't think that it is necessary to move any of those functions out of
their existing habitat just yet. While I haven't looked more closely
which of these functions are specific to the sequencer and which are
more generic, I would argue that moving any of them is outside of the
goals of your patch series.

Thanks,
Dscho

[PATCH v2 0/6] sequencer: start running post-commit hook again

[Phillip Wood via GitGitGadget]

When I converted the sequencer to avoid forking git commit i forgot about
the post-commit hook. These patches are based on
pw/rebase-i-show-HEAD-to-reword, otherwise the new test fails as that branch
changes the number of commits we make.

Thanks to Dscho & Junio for their comments on V1. I've made the following
changes:

Patches 1-3 These are new patches in response to Dscho's request to set
$EDITOR in a subshell. There were ~80 other tests that weren't doing that
and they are fixed in these patches. Patch 2 contains the main action,
unfortunately due to a combination of having to remove the trailing ' &&'
from the last line moved into the subshell and re-wrapping some lines due to
the increased indentation --color-moved and --color-moved-ws are of limited
use when viewing this patch.

Patch 4 (was 1) Unchanged

Patch 5 (was 2) I've moved the function definition to commit.c rather than
sequencer.c as suggested. I've also removed an unused struct argv_array from
run_prepare_commit_msg_hook() (There wasn't a compiler warning as it was
still calling argv_array_clear() at the end of the function) and reworded
the commit message.

Patch 6 (was 3) I've tided up the test and removed the wrapper function for
running the post-commit hook as suggested.

Phillip Wood (6):
  t3404: remove unnecessary subshell
  t3404: set $EDITOR in subshell
  t3404: remove uneeded calls to set_fake_editor
  sequencer.h fix placement of #endif
  move run_commit_hook() to libgit and use it there
  sequencer: run post-commit hook

 builtin/commit.c              |  22 --
 commit.c                      |  24 ++
 sequencer.c                   |  24 +-
 sequencer.h                   |   3 +-
 t/lib-rebase.sh               |  28 ++
 t/t3404-rebase-interactive.sh | 596 +++++++++++++++++++++-------------
 6 files changed, 432 insertions(+), 265 deletions(-)


base-commit: b0a3186140dbc7bd64cbc6ef733386a0f1eb6a4d
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-388%2Fphillipwood%2Fwip%2Frebase-commit-hooks-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-388/phillipwood/wip/rebase-commit-hooks-v2
Pull-Request: https://github.com/gitgitgadget/git/pull/388

Range-diff vs v1:

 -:  ---------- > 1:  b9689e85e5 t3404: remove unnecessary subshell
 -:  ---------- > 2:  96432cd0f0 t3404: set $EDITOR in subshell
 -:  ---------- > 3:  09857dee78 t3404: remove uneeded calls to set_fake_editor
 1:  7305f8d8e8 = 4:  0eac3ede02 sequencer.h fix placement of #endif
 2:  420ecf442c ! 5:  f394a0e163 sequencer: use run_commit_hook()
     @@ -1,9 +1,11 @@
      Author: Phillip Wood <phillip.wood@dunelm.org.uk>
      
     -    sequencer: use run_commit_hook()
     +    move run_commit_hook() to libgit and use it there
      
     -    This simplifies the implementation of run_prepare_commit_msg_hook() and
     -    will be used in the next commit.
     +    This function was declared in commit.h but was implemented in
     +    builtin/commit.c so was not part of libgit. Move it to libgit so we can
     +    use it in the sequencer. This simplifies the implementation of
     +    run_prepare_commit_msg_hook() and will be used in the next commit.
      
          Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
      
     @@ -40,25 +42,22 @@
       {
       	const char *argv_gc_auto[] = {"gc", "--auto", NULL};
      
     - diff --git a/commit.h b/commit.h
     - --- a/commit.h
     - +++ b/commit.h
     + diff --git a/commit.c b/commit.c
     + --- a/commit.c
     + +++ b/commit.c
      @@
     - int compare_commits_by_commit_date(const void *a_, const void *b_, void *unused);
     - int compare_commits_by_gen_then_commit_date(const void *a_, const void *b_, void *unused);
     + #include "advice.h"
     + #include "refs.h"
     + #include "commit-reach.h"
     ++#include "run-command.h"
     + 
     + static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
       
     --LAST_ARG_MUST_BE_NULL
     --int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
     --
     - #endif /* COMMIT_H */
     -
     - diff --git a/sequencer.c b/sequencer.c
     - --- a/sequencer.c
     - +++ b/sequencer.c
      @@
     - 	run_rewrite_hook(&old_head->object.oid, new_head);
     + 	}
     + 	return boc ? len - boc : len - cutoff;
       }
     - 
     ++
      +int run_commit_hook(int editor_is_used, const char *index_file,
      +		    const char *name, ...)
      +{
     @@ -81,12 +80,15 @@
      +
      +	return ret;
      +}
     -+
     - static int run_prepare_commit_msg_hook(struct repository *r,
     +
     + diff --git a/sequencer.c b/sequencer.c
     + --- a/sequencer.c
     + +++ b/sequencer.c
     +@@
       				       struct strbuf *msg,
       				       const char *commit)
       {
     - 	struct argv_array hook_env = ARGV_ARRAY_INIT;
     +-	struct argv_array hook_env = ARGV_ARRAY_INIT;
      -	int ret;
      -	const char *name;
      +	int ret = 0;
     @@ -114,18 +116,7 @@
      +	if (run_commit_hook(0, r->index_file, "prepare-commit-msg", name,
      +			    arg1, arg2, NULL))
       		ret = error(_("'prepare-commit-msg' hook failed"));
     -+
     - 	argv_array_clear(&hook_env);
     +-	argv_array_clear(&hook_env);
       
       	return ret;
     -
     - diff --git a/sequencer.h b/sequencer.h
     - --- a/sequencer.h
     - +++ b/sequencer.h
     -@@
     - void sequencer_post_commit_cleanup(struct repository *r);
     - int sequencer_get_last_command(struct repository* r,
     - 			       enum replay_action *action);
     -+LAST_ARG_MUST_BE_NULL
     -+int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
     - #endif /* SEQUENCER_H */
     + }
 3:  acaa086a48 ! 6:  67a711754e sequencer: run post-commit hook
     @@ -10,52 +10,18 @@
      
          Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
      
     - diff --git a/builtin/commit.c b/builtin/commit.c
     - --- a/builtin/commit.c
     - +++ b/builtin/commit.c
     -@@
     - 
     - 	repo_rerere(the_repository, 0);
     - 	run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
     --	run_commit_hook(use_editor, get_index_file(), "post-commit", NULL);
     -+	run_post_commit_hook(use_editor, get_index_file());
     - 	if (amend && !no_post_rewrite) {
     - 		commit_post_rewrite(the_repository, current_head, &oid);
     - 	}
     -
       diff --git a/sequencer.c b/sequencer.c
       --- a/sequencer.c
       +++ b/sequencer.c
     -@@
     - 	return ret;
     - }
     - 
     -+void run_post_commit_hook(int editor_is_used, const char *index_file) {
     -+	run_commit_hook(editor_is_used, index_file, "post-commit", NULL);
     -+}
     -+
     - static const char implicit_ident_advice_noconfig[] =
     - N_("Your name and email address were configured automatically based\n"
     - "on your username and hostname. Please check that they are accurate.\n"
      @@
       		goto out;
       	}
       
     -+	run_post_commit_hook(0, r->index_file);
     ++	run_commit_hook(0, r->index_file, "post-commit", NULL);
       	if (flags & AMEND_MSG)
       		commit_post_rewrite(r, current_head, oid);
       
      
     - diff --git a/sequencer.h b/sequencer.h
     - --- a/sequencer.h
     - +++ b/sequencer.h
     -@@
     - 			       enum replay_action *action);
     - LAST_ARG_MUST_BE_NULL
     - int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
     -+void run_post_commit_hook(int editor_is_used, const char *index_file);
     - #endif /* SEQUENCER_H */
     -
       diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
       --- a/t/t3404-rebase-interactive.sh
       +++ b/t/t3404-rebase-interactive.sh
     @@ -64,20 +30,24 @@
       '
       
      +test_expect_success 'post-commit hook is called' '
     -+	test_when_finished "rm -f .git/hooks/post-commit commits" &&
     ++	test_when_finished "rm -f .git/hooks/post-commit" &&
     ++	>actual &&
      +	mkdir -p .git/hooks &&
      +	write_script .git/hooks/post-commit <<-\EOS &&
     -+	git rev-parse HEAD >>commits
     ++	git rev-parse HEAD >>actual
      +	EOS
     -+	set_fake_editor &&
     -+	FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
     -+	echo x>file3 &&
     -+	git add file3 &&
     -+	FAKE_COMMIT_MESSAGE=edited git rebase --continue &&
     -+	# rev-list does not support -g --reverse
     -+	git rev-list --no-walk=unsorted HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} \
     -+		HEAD@{1} HEAD >expected &&
     -+	test_cmp expected commits
     ++	(
     ++		set_fake_editor &&
     ++		FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
     ++		echo x>file3 &&
     ++		git add file3 &&
     ++		FAKE_COMMIT_MESSAGE=edited git rebase --continue
     ++	) &&
     ++	git rev-parse HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} HEAD@{1} HEAD \
     ++		>expect &&
     ++	test_cmp expect actual
      +'
      +
     - test_done
     + # This must be the last test in this file
     + test_expect_success '$EDITOR and friends are unchanged' '
     + 	test_editor_unchanged

-- 
gitgitgadget

[PATCH v2 1/6] t3404: remove unnecessary subshell

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

Neither of the commands executed in the subshell change any shell
variables or the current directory so there is no need for them to be
executed in a subshell.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 t/t3404-rebase-interactive.sh | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index d2f1d5bd23..c26b3362ef 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -945,10 +945,8 @@ test_expect_success C_LOCALE_OUTPUT 'rebase -ix with --autosquash' '
 	git add bis.txt &&
 	git commit -m "fixup! two_exec" &&
 	set_fake_editor &&
-	(
-		git checkout -b autosquash_actual &&
-		git rebase -i --exec "git show HEAD" --autosquash HEAD~4 >actual
-	) &&
+	git checkout -b autosquash_actual &&
+	git rebase -i --exec "git show HEAD" --autosquash HEAD~4 >actual &&
 	git checkout autosquash &&
 	(
 		git checkout -b autosquash_expected &&
-- 
gitgitgadget

[PATCH v2 2/6] t3404: set $EDITOR in subshell

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

As $EDITOR is exported setting it in one test affects all subsequent
tests. Avoid this by always setting it in a subshell. This commit leaves
20 calls to set_fake_editor that are not in subshells as they can
safely be removed in the next commit once all the other editor setting
is done inside subshells.

I have moved the call to set_fake_editor in some tests so it comes
immediately before the call to 'git rebase' to avoid moving unrelated
commands into the subshell. In one case ('rebase -ix with
--autosquash') the call to set_fake_editor is moved past an invocation
of 'git rebase'. This is safe as that invocation of 'git rebase'
requires EDITOR=: or EDITOR=fake-editor.sh without FAKE_LINES being
set which will be the case as the preceding tests either set their
editor in a subshell or call set_fake_editor without setting FAKE_LINES.

In a one test ('auto-amend only edited commits after "edit"') a call
to test_tick are now in a subshell. I think this is OK as it is there
to set the date for the next commit which is executed in the same
subshell rather than updating GIT_COMMITTER_DATE for later tests (the
next test calls test_tick before doing anything else).

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 t/t3404-rebase-interactive.sh | 546 +++++++++++++++++++++-------------
 1 file changed, 342 insertions(+), 204 deletions(-)

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index c26b3362ef..cb9b210000 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -79,8 +79,11 @@ test_expect_success 'rebase -i with empty HEAD' '
 	cat >expect <<-\EOF &&
 	error: nothing to do
 	EOF
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 exec_true" git rebase -i HEAD^ >actual 2>&1 &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 exec_true" \
+			git rebase -i HEAD^ >actual 2>&1
+	) &&
 	test_i18ncmp expect actual
 '
 
@@ -139,8 +142,11 @@ test_expect_success 'rebase -i sets work tree properly' '
 
 test_expect_success 'rebase -i with the exec command checks tree cleanness' '
 	git checkout master &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="exec_echo_foo_>file1 1" git rebase -i HEAD^ &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="exec_echo_foo_>file1 1" \
+			git rebase -i HEAD^
+	) &&
 	test_cmp_rev master^ HEAD &&
 	git reset --hard &&
 	git rebase --continue
@@ -168,9 +174,11 @@ test_expect_success 'rebase -x with newline in command fails' '
 test_expect_success 'rebase -i with exec of inexistent command' '
 	git checkout master &&
 	test_when_finished "git rebase --abort" &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="exec_this-command-does-not-exist 1" \
-	git rebase -i HEAD^ >actual 2>&1 &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="exec_this-command-does-not-exist 1" \
+			git rebase -i HEAD^ >actual 2>&1
+	) &&
 	! grep "Maybe git-rebase is broken" actual
 '
 
@@ -230,8 +238,10 @@ test_expect_success 'reflog for the branch shows correct finish message' '
 '
 
 test_expect_success 'exchange two commits' '
-	set_fake_editor &&
-	FAKE_LINES="2 1" git rebase -i HEAD~2 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1" git rebase -i HEAD~2
+	) &&
 	test H = $(git cat-file commit HEAD^ | sed -ne \$p) &&
 	test G = $(git cat-file commit HEAD | sed -ne \$p)
 '
@@ -332,9 +342,11 @@ test_expect_success 'squash' '
 	test_tick &&
 	GIT_AUTHOR_NAME="Nitfol" git commit -m "nitfol" file7 &&
 	echo "******************************" &&
-	set_fake_editor &&
-	FAKE_LINES="1 squash 2" EXPECT_HEADER_COUNT=2 \
-		git rebase -i --onto master HEAD~2 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 squash 2" EXPECT_HEADER_COUNT=2 \
+			git rebase -i --onto master HEAD~2
+	) &&
 	test B = $(cat file7) &&
 	test $(git rev-parse HEAD^) = $(git rev-parse master)
 '
@@ -355,8 +367,10 @@ test_expect_success REBASE_P '-p handles "no changes" gracefully' '
 
 test_expect_failure REBASE_P 'exchange two commits with -p' '
 	git checkout H &&
-	set_fake_editor &&
-	FAKE_LINES="2 1" git rebase -i -p HEAD~2 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1" git rebase -i -p HEAD~2
+	) &&
 	test H = $(git cat-file commit HEAD^ | sed -ne \$p) &&
 	test G = $(git cat-file commit HEAD | sed -ne \$p)
 '
@@ -405,8 +419,10 @@ test_expect_success REBASE_P 'preserve merges with -p' '
 '
 
 test_expect_success REBASE_P 'edit ancestor with -p' '
-	set_fake_editor &&
-	FAKE_LINES="1 2 edit 3 4" git rebase -i -p HEAD~3 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 edit 3 4" git rebase -i -p HEAD~3
+	) &&
 	echo 2 > unrelated-file &&
 	test_tick &&
 	git commit -m L2-modified --amend unrelated-file &&
@@ -420,11 +436,13 @@ test_expect_success REBASE_P 'edit ancestor with -p' '
 test_expect_success '--continue tries to commit' '
 	git reset --hard D &&
 	test_tick &&
-	set_fake_editor &&
-	test_must_fail git rebase -i --onto new-branch1 HEAD^ &&
-	echo resolved > file1 &&
-	git add file1 &&
-	FAKE_COMMIT_MESSAGE="chouette!" git rebase --continue &&
+	(
+		set_fake_editor &&
+		test_must_fail git rebase -i --onto new-branch1 HEAD^ &&
+		echo resolved > file1 &&
+		git add file1 &&
+		FAKE_COMMIT_MESSAGE="chouette!" git rebase --continue
+	) &&
 	test $(git rev-parse HEAD^) = $(git rev-parse new-branch1) &&
 	git show HEAD | grep chouette
 '
@@ -442,10 +460,13 @@ test_expect_success 'verbose flag is heeded, even after --continue' '
 
 test_expect_success C_LOCALE_OUTPUT 'multi-squash only fires up editor once' '
 	base=$(git rev-parse HEAD~4) &&
-	set_fake_editor &&
-	FAKE_COMMIT_AMEND="ONCE" FAKE_LINES="1 squash 2 squash 3 squash 4" \
-		EXPECT_HEADER_COUNT=4 \
-		git rebase -i $base &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="ONCE" \
+			FAKE_LINES="1 squash 2 squash 3 squash 4" \
+			EXPECT_HEADER_COUNT=4 \
+			git rebase -i $base
+	) &&
 	test $base = $(git rev-parse HEAD^) &&
 	test 1 = $(git show | grep ONCE | wc -l)
 '
@@ -453,9 +474,12 @@ test_expect_success C_LOCALE_OUTPUT 'multi-squash only fires up editor once' '
 test_expect_success C_LOCALE_OUTPUT 'multi-fixup does not fire up editor' '
 	git checkout -b multi-fixup E &&
 	base=$(git rev-parse HEAD~4) &&
-	set_fake_editor &&
-	FAKE_COMMIT_AMEND="NEVER" FAKE_LINES="1 fixup 2 fixup 3 fixup 4" \
-		git rebase -i $base &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="NEVER" \
+			FAKE_LINES="1 fixup 2 fixup 3 fixup 4" \
+			git rebase -i $base
+	) &&
 	test $base = $(git rev-parse HEAD^) &&
 	test 0 = $(git show | grep NEVER | wc -l) &&
 	git checkout @{-1} &&
@@ -465,12 +489,15 @@ test_expect_success C_LOCALE_OUTPUT 'multi-fixup does not fire up editor' '
 test_expect_success 'commit message used after conflict' '
 	git checkout -b conflict-fixup conflict-branch &&
 	base=$(git rev-parse HEAD~4) &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 fixup 3 fixup 4" git rebase -i $base &&
-	echo three > conflict &&
-	git add conflict &&
-	FAKE_COMMIT_AMEND="ONCE" EXPECT_HEADER_COUNT=2 \
-		git rebase --continue &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 fixup 3 fixup 4" \
+			git rebase -i $base &&
+		echo three > conflict &&
+		git add conflict &&
+		FAKE_COMMIT_AMEND="ONCE" EXPECT_HEADER_COUNT=2 \
+			git rebase --continue
+	) &&
 	test $base = $(git rev-parse HEAD^) &&
 	test 1 = $(git show | grep ONCE | wc -l) &&
 	git checkout @{-1} &&
@@ -480,12 +507,15 @@ test_expect_success 'commit message used after conflict' '
 test_expect_success 'commit message retained after conflict' '
 	git checkout -b conflict-squash conflict-branch &&
 	base=$(git rev-parse HEAD~4) &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 fixup 3 squash 4" git rebase -i $base &&
-	echo three > conflict &&
-	git add conflict &&
-	FAKE_COMMIT_AMEND="TWICE" EXPECT_HEADER_COUNT=2 \
-		git rebase --continue &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 fixup 3 squash 4" \
+			git rebase -i $base &&
+		echo three > conflict &&
+		git add conflict &&
+		FAKE_COMMIT_AMEND="TWICE" EXPECT_HEADER_COUNT=2 \
+			git rebase --continue
+	) &&
 	test $base = $(git rev-parse HEAD^) &&
 	test 2 = $(git show | grep TWICE | wc -l) &&
 	git checkout @{-1} &&
@@ -502,10 +532,13 @@ test_expect_success C_LOCALE_OUTPUT 'squash and fixup generate correct log messa
 	EOF
 	git checkout -b squash-fixup E &&
 	base=$(git rev-parse HEAD~4) &&
-	set_fake_editor &&
-	FAKE_COMMIT_AMEND="ONCE" FAKE_LINES="1 fixup 2 squash 3 fixup 4" \
-		EXPECT_HEADER_COUNT=4 \
-		git rebase -i $base &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="ONCE" \
+			FAKE_LINES="1 fixup 2 squash 3 fixup 4" \
+			EXPECT_HEADER_COUNT=4 \
+			git rebase -i $base
+	) &&
 	git cat-file commit HEAD | sed -e 1,/^\$/d > actual-squash-fixup &&
 	test_cmp expect-squash-fixup actual-squash-fixup &&
 	git cat-file commit HEAD@{2} |
@@ -519,10 +552,13 @@ test_expect_success C_LOCALE_OUTPUT 'squash and fixup generate correct log messa
 test_expect_success C_LOCALE_OUTPUT 'squash ignores comments' '
 	git checkout -b skip-comments E &&
 	base=$(git rev-parse HEAD~4) &&
-	set_fake_editor &&
-	FAKE_COMMIT_AMEND="ONCE" FAKE_LINES="# 1 # squash 2 # squash 3 # squash 4 #" \
-		EXPECT_HEADER_COUNT=4 \
-		git rebase -i $base &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="ONCE" \
+			FAKE_LINES="# 1 # squash 2 # squash 3 # squash 4 #" \
+			EXPECT_HEADER_COUNT=4 \
+			git rebase -i $base
+	) &&
 	test $base = $(git rev-parse HEAD^) &&
 	test 1 = $(git show | grep ONCE | wc -l) &&
 	git checkout @{-1} &&
@@ -532,10 +568,13 @@ test_expect_success C_LOCALE_OUTPUT 'squash ignores comments' '
 test_expect_success C_LOCALE_OUTPUT 'squash ignores blank lines' '
 	git checkout -b skip-blank-lines E &&
 	base=$(git rev-parse HEAD~4) &&
-	set_fake_editor &&
-	FAKE_COMMIT_AMEND="ONCE" FAKE_LINES="> 1 > squash 2 > squash 3 > squash 4 >" \
-		EXPECT_HEADER_COUNT=4 \
-		git rebase -i $base &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="ONCE" \
+			FAKE_LINES="> 1 > squash 2 > squash 3 > squash 4 >" \
+			EXPECT_HEADER_COUNT=4 \
+			git rebase -i $base
+	) &&
 	test $base = $(git rev-parse HEAD^) &&
 	test 1 = $(git show | grep ONCE | wc -l) &&
 	git checkout @{-1} &&
@@ -545,17 +584,21 @@ test_expect_success C_LOCALE_OUTPUT 'squash ignores blank lines' '
 test_expect_success 'squash works as expected' '
 	git checkout -b squash-works no-conflict-branch &&
 	one=$(git rev-parse HEAD~3) &&
-	set_fake_editor &&
-	FAKE_LINES="1 s 3 2" EXPECT_HEADER_COUNT=2 \
-		git rebase -i HEAD~3 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 s 3 2" EXPECT_HEADER_COUNT=2 git rebase -i HEAD~3
+	) &&
 	test $one = $(git rev-parse HEAD~2)
 '
 
 test_expect_success 'interrupted squash works as expected' '
 	git checkout -b interrupted-squash conflict-branch &&
 	one=$(git rev-parse HEAD~3) &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 squash 3 2" git rebase -i HEAD~3 &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 squash 3 2" \
+			git rebase -i HEAD~3
+	) &&
 	test_write_lines one two four > conflict &&
 	git add conflict &&
 	test_must_fail git rebase --continue &&
@@ -568,8 +611,11 @@ test_expect_success 'interrupted squash works as expected' '
 test_expect_success 'interrupted squash works as expected (case 2)' '
 	git checkout -b interrupted-squash2 conflict-branch &&
 	one=$(git rev-parse HEAD~3) &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="3 squash 1 2" git rebase -i HEAD~3 &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="3 squash 1 2" \
+			git rebase -i HEAD~3
+	) &&
 	test_write_lines one four > conflict &&
 	git add conflict &&
 	test_must_fail git rebase --continue &&
@@ -589,11 +635,13 @@ test_expect_success '--continue tries to commit, even for "edit"' '
 	git commit -m "unrelated change" &&
 	parent=$(git rev-parse HEAD^) &&
 	test_tick &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1" git rebase -i HEAD^ &&
-	echo edited > file7 &&
-	git add file7 &&
-	FAKE_COMMIT_MESSAGE="chouette!" git rebase --continue &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i HEAD^ &&
+		echo edited > file7 &&
+		git add file7 &&
+		FAKE_COMMIT_MESSAGE="chouette!" git rebase --continue
+	) &&
 	test edited = $(git show HEAD:file7) &&
 	git show HEAD | grep chouette &&
 	test $parent = $(git rev-parse HEAD^)
@@ -602,34 +650,41 @@ test_expect_success '--continue tries to commit, even for "edit"' '
 test_expect_success 'aborted --continue does not squash commits after "edit"' '
 	old=$(git rev-parse HEAD) &&
 	test_tick &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1" git rebase -i HEAD^ &&
-	echo "edited again" > file7 &&
-	git add file7 &&
-	test_must_fail env FAKE_COMMIT_MESSAGE=" " git rebase --continue &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i HEAD^ &&
+		echo "edited again" > file7 &&
+		git add file7 &&
+		test_must_fail env FAKE_COMMIT_MESSAGE=" " git rebase --continue
+	) &&
 	test $old = $(git rev-parse HEAD) &&
 	git rebase --abort
 '
 
 test_expect_success 'auto-amend only edited commits after "edit"' '
 	test_tick &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1" git rebase -i HEAD^ &&
-	echo "edited again" > file7 &&
-	git add file7 &&
-	FAKE_COMMIT_MESSAGE="edited file7 again" git commit &&
-	echo "and again" > file7 &&
-	git add file7 &&
-	test_tick &&
-	test_must_fail env FAKE_COMMIT_MESSAGE="and again" git rebase --continue &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i HEAD^ &&
+		echo "edited again" > file7 &&
+		git add file7 &&
+		FAKE_COMMIT_MESSAGE="edited file7 again" git commit &&
+		echo "and again" > file7 &&
+		git add file7 &&
+		test_tick &&
+		test_must_fail env FAKE_COMMIT_MESSAGE="and again" \
+			git rebase --continue
+	) &&
 	git rebase --abort
 '
 
 test_expect_success 'clean error after failed "exec"' '
 	test_tick &&
 	test_when_finished "git rebase --abort || :" &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 exec_false" git rebase -i HEAD^ &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 exec_false" git rebase -i HEAD^
+	) &&
 	echo "edited again" > file7 &&
 	git add file7 &&
 	test_must_fail git rebase --continue 2>error &&
@@ -640,8 +695,10 @@ test_expect_success 'rebase a detached HEAD' '
 	grandparent=$(git rev-parse HEAD~2) &&
 	git checkout $(git rev-parse HEAD) &&
 	test_tick &&
-	set_fake_editor &&
-	FAKE_LINES="2 1" git rebase -i HEAD~2 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1" git rebase -i HEAD~2
+	) &&
 	test $grandparent = $(git rev-parse HEAD~2)
 '
 
@@ -656,9 +713,10 @@ test_expect_success 'rebase a commit violating pre-commit' '
 	test_must_fail git commit -m doesnt-verify file1 &&
 	git commit -m doesnt-verify --no-verify file1 &&
 	test_tick &&
-	set_fake_editor &&
-	FAKE_LINES=2 git rebase -i HEAD~2
-
+	(
+		set_fake_editor &&
+		FAKE_LINES=2 git rebase -i HEAD~2
+	)
 '
 
 test_expect_success 'rebase with a file named HEAD in worktree' '
@@ -678,8 +736,10 @@ test_expect_success 'rebase with a file named HEAD in worktree' '
 		git commit -m "Add body"
 	) &&
 
-	set_fake_editor &&
-	FAKE_LINES="1 squash 2" git rebase -i @{-1} &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 squash 2" git rebase -i @{-1}
+	) &&
 	test "$(git show -s --pretty=format:%an)" = "Squashed Away"
 
 '
@@ -720,8 +780,10 @@ test_expect_success 'submodule rebase setup' '
 '
 
 test_expect_success 'submodule rebase -i' '
-	set_fake_editor &&
-	FAKE_LINES="1 squash 2 3" git rebase -i A
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 squash 2 3" git rebase -i A
+	)
 '
 
 test_expect_success 'submodule conflict setup' '
@@ -770,16 +832,22 @@ test_expect_success 'avoid unnecessary reset' '
 
 test_expect_success 'reword' '
 	git checkout -b reword-branch master &&
-	set_fake_editor &&
-	FAKE_LINES="1 2 3 reword 4" FAKE_COMMIT_MESSAGE="E changed" git rebase -i A &&
-	git show HEAD | grep "E changed" &&
-	test $(git rev-parse master) != $(git rev-parse HEAD) &&
-	test $(git rev-parse master^) = $(git rev-parse HEAD^) &&
-	FAKE_LINES="1 2 reword 3 4" FAKE_COMMIT_MESSAGE="D changed" git rebase -i A &&
-	git show HEAD^ | grep "D changed" &&
-	FAKE_LINES="reword 1 2 3 4" FAKE_COMMIT_MESSAGE="B changed" git rebase -i A &&
-	git show HEAD~3 | grep "B changed" &&
-	FAKE_LINES="1 r 2 pick 3 p 4" FAKE_COMMIT_MESSAGE="C changed" git rebase -i A &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 3 reword 4" FAKE_COMMIT_MESSAGE="E changed" \
+			git rebase -i A &&
+		git show HEAD | grep "E changed" &&
+		test $(git rev-parse master) != $(git rev-parse HEAD) &&
+		test $(git rev-parse master^) = $(git rev-parse HEAD^) &&
+		FAKE_LINES="1 2 reword 3 4" FAKE_COMMIT_MESSAGE="D changed" \
+			git rebase -i A &&
+		git show HEAD^ | grep "D changed" &&
+		FAKE_LINES="reword 1 2 3 4" FAKE_COMMIT_MESSAGE="B changed" \
+			git rebase -i A &&
+		git show HEAD~3 | grep "B changed" &&
+		FAKE_LINES="1 r 2 pick 3 p 4" FAKE_COMMIT_MESSAGE="C changed" \
+			git rebase -i A
+	) &&
 	git show HEAD~2 | grep "C changed"
 '
 
@@ -803,8 +871,11 @@ test_expect_success 'rebase -i can copy notes over a fixup' '
 	EOF
 	git reset --hard n3 &&
 	git notes add -m"an earlier note" n2 &&
-	set_fake_editor &&
-	GIT_NOTES_REWRITE_MODE=concatenate FAKE_LINES="1 f 2" git rebase -i n1 &&
+	(
+		set_fake_editor &&
+		GIT_NOTES_REWRITE_MODE=concatenate FAKE_LINES="1 f 2" \
+			git rebase -i n1
+	) &&
 	git notes show > output &&
 	test_cmp expect output
 '
@@ -813,8 +884,10 @@ test_expect_success 'rebase while detaching HEAD' '
 	git symbolic-ref HEAD &&
 	grandparent=$(git rev-parse HEAD~2) &&
 	test_tick &&
-	set_fake_editor &&
-	FAKE_LINES="2 1" git rebase -i HEAD~2 HEAD^0 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1" git rebase -i HEAD~2 HEAD^0
+	) &&
 	test $grandparent = $(git rev-parse HEAD~2) &&
 	test_must_fail git symbolic-ref HEAD
 '
@@ -855,8 +928,10 @@ test_expect_success 'set up commits with funny messages' '
 test_expect_success 'rebase-i history with funny messages' '
 	git rev-list A..funny >expect &&
 	test_tick &&
-	set_fake_editor &&
-	FAKE_LINES="1 2 3 4" git rebase -i A &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 3 4" git rebase -i A
+	) &&
 	git rev-list A.. >actual &&
 	test_cmp expect actual
 '
@@ -870,9 +945,9 @@ test_expect_success 'prepare for rebase -i --exec' '
 '
 
 test_expect_success 'running "git rebase -i --exec git show HEAD"' '
-	set_fake_editor &&
-	git rebase -i --exec "git show HEAD" HEAD~2 >actual &&
 	(
+		set_fake_editor &&
+		git rebase -i --exec "git show HEAD" HEAD~2 >actual &&
 		FAKE_LINES="1 exec_git_show_HEAD 2 exec_git_show_HEAD" &&
 		export FAKE_LINES &&
 		git rebase -i HEAD~2 >expect
@@ -883,9 +958,9 @@ test_expect_success 'running "git rebase -i --exec git show HEAD"' '
 
 test_expect_success 'running "git rebase --exec git show HEAD -i"' '
 	git reset --hard execute &&
-	set_fake_editor &&
-	git rebase --exec "git show HEAD" -i HEAD~2 >actual &&
 	(
+		set_fake_editor &&
+		git rebase --exec "git show HEAD" -i HEAD~2 >actual &&
 		FAKE_LINES="1 exec_git_show_HEAD 2 exec_git_show_HEAD" &&
 		export FAKE_LINES &&
 		git rebase -i HEAD~2 >expect
@@ -896,9 +971,9 @@ test_expect_success 'running "git rebase --exec git show HEAD -i"' '
 
 test_expect_success 'running "git rebase -ix git show HEAD"' '
 	git reset --hard execute &&
-	set_fake_editor &&
-	git rebase -ix "git show HEAD" HEAD~2 >actual &&
 	(
+		set_fake_editor &&
+		git rebase -ix "git show HEAD" HEAD~2 >actual &&
 		FAKE_LINES="1 exec_git_show_HEAD 2 exec_git_show_HEAD" &&
 		export FAKE_LINES &&
 		git rebase -i HEAD~2 >expect
@@ -910,9 +985,9 @@ test_expect_success 'running "git rebase -ix git show HEAD"' '
 
 test_expect_success 'rebase -ix with several <CMD>' '
 	git reset --hard execute &&
-	set_fake_editor &&
-	git rebase -ix "git show HEAD; pwd" HEAD~2 >actual &&
 	(
+		set_fake_editor &&
+		git rebase -ix "git show HEAD; pwd" HEAD~2 >actual &&
 		FAKE_LINES="1 exec_git_show_HEAD;_pwd 2 exec_git_show_HEAD;_pwd" &&
 		export FAKE_LINES &&
 		git rebase -i HEAD~2 >expect
@@ -923,9 +998,9 @@ test_expect_success 'rebase -ix with several <CMD>' '
 
 test_expect_success 'rebase -ix with several instances of --exec' '
 	git reset --hard execute &&
-	set_fake_editor &&
-	git rebase -i --exec "git show HEAD" --exec "pwd" HEAD~2 >actual &&
 	(
+		set_fake_editor &&
+		git rebase -i --exec "git show HEAD" --exec "pwd" HEAD~2 >actual &&
 		FAKE_LINES="1 exec_git_show_HEAD exec_pwd 2
 				exec_git_show_HEAD exec_pwd" &&
 		export FAKE_LINES &&
@@ -944,11 +1019,11 @@ test_expect_success C_LOCALE_OUTPUT 'rebase -ix with --autosquash' '
 	echo bis >bis.txt &&
 	git add bis.txt &&
 	git commit -m "fixup! two_exec" &&
-	set_fake_editor &&
 	git checkout -b autosquash_actual &&
 	git rebase -i --exec "git show HEAD" --autosquash HEAD~4 >actual &&
 	git checkout autosquash &&
 	(
+		set_fake_editor &&
 		git checkout -b autosquash_expected &&
 		FAKE_LINES="1 fixup 3 fixup 4 exec_git_show_HEAD 2 exec_git_show_HEAD" &&
 		export FAKE_LINES &&
@@ -977,8 +1052,10 @@ test_expect_success 'rebase -i --exec without <CMD>' '
 
 test_expect_success 'rebase -i --root re-order and drop commits' '
 	git checkout E &&
-	set_fake_editor &&
-	FAKE_LINES="3 1 2 5" git rebase -i --root &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="3 1 2 5" git rebase -i --root
+	) &&
 	test E = $(git cat-file commit HEAD | sed -ne \$p) &&
 	test B = $(git cat-file commit HEAD^ | sed -ne \$p) &&
 	test A = $(git cat-file commit HEAD^^ | sed -ne \$p) &&
@@ -991,24 +1068,30 @@ test_expect_success 'rebase -i --root retain root commit author and message' '
 	echo B >file7 &&
 	git add file7 &&
 	GIT_AUTHOR_NAME="Twerp Snog" git commit -m "different author" &&
-	set_fake_editor &&
-	FAKE_LINES="2" git rebase -i --root &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2" git rebase -i --root
+	) &&
 	git cat-file commit HEAD | grep -q "^author Twerp Snog" &&
 	git cat-file commit HEAD | grep -q "^different author$"
 '
 
 test_expect_success 'rebase -i --root temporary sentinel commit' '
 	git checkout B &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="2" git rebase -i --root &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="2" git rebase -i --root
+	) &&
 	git cat-file commit HEAD | grep "^tree 4b825dc642cb" &&
 	git rebase --abort
 '
 
 test_expect_success 'rebase -i --root fixup root commit' '
 	git checkout B &&
-	set_fake_editor &&
-	FAKE_LINES="1 fixup 2" git rebase -i --root &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 fixup 2" git rebase -i --root
+	) &&
 	test A = $(git cat-file commit HEAD | sed -ne \$p) &&
 	test B = $(git show HEAD:file1) &&
 	test 0 = $(git cat-file commit HEAD | grep -c ^parent\ )
@@ -1017,9 +1100,11 @@ test_expect_success 'rebase -i --root fixup root commit' '
 test_expect_success 'rebase -i --root reword original root commit' '
 	test_when_finished "test_might_fail git rebase --abort" &&
 	git checkout -b reword-original-root-branch master &&
-	set_fake_editor &&
-	FAKE_LINES="reword 1 2" FAKE_COMMIT_MESSAGE="A changed" \
-	git rebase -i --root &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="reword 1 2" FAKE_COMMIT_MESSAGE="A changed" \
+			git rebase -i --root
+	) &&
 	git show HEAD^ | grep "A changed" &&
 	test -z "$(git show -s --format=%p HEAD^)"
 '
@@ -1027,9 +1112,11 @@ test_expect_success 'rebase -i --root reword original root commit' '
 test_expect_success 'rebase -i --root reword new root commit' '
 	test_when_finished "test_might_fail git rebase --abort" &&
 	git checkout -b reword-now-root-branch master &&
-	set_fake_editor &&
-	FAKE_LINES="reword 3 1" FAKE_COMMIT_MESSAGE="C changed" \
-	git rebase -i --root &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="reword 3 1" FAKE_COMMIT_MESSAGE="C changed" \
+		git rebase -i --root
+	) &&
 	git show HEAD^ | grep "C changed" &&
 	test -z "$(git show -s --format=%p HEAD^)"
 '
@@ -1041,8 +1128,10 @@ test_expect_success 'rebase -i --root when root has untracked file conflict' '
 	git rm file1 &&
 	git commit -m "remove file 1 add file 2" &&
 	echo z >file1 &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 2" git rebase -i --root &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 2" git rebase -i --root
+	) &&
 	rm file1 &&
 	git rebase --continue &&
 	test "$(git log -1 --format=%B)" = "remove file 1 add file 2" &&
@@ -1052,11 +1141,13 @@ test_expect_success 'rebase -i --root when root has untracked file conflict' '
 test_expect_success 'rebase -i --root reword root when root has untracked file conflict' '
 	test_when_finished "reset_rebase" &&
 	echo z>file1 &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="reword 1 2" \
-		FAKE_COMMIT_MESSAGE="Modified A" git rebase -i --root &&
-	rm file1 &&
-	FAKE_COMMIT_MESSAGE="Reworded A" git rebase --continue &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="reword 1 2" \
+			FAKE_COMMIT_MESSAGE="Modified A" git rebase -i --root &&
+		rm file1 &&
+		FAKE_COMMIT_MESSAGE="Reworded A" git rebase --continue
+	) &&
 	test "$(git log -1 --format=%B HEAD^)" = "Reworded A" &&
 	test "$(git rev-list --count HEAD)" = 2
 '
@@ -1065,19 +1156,23 @@ test_expect_success C_LOCALE_OUTPUT 'rebase --edit-todo does not work on non-int
 	git checkout reword-original-root-branch &&
 	git reset --hard &&
 	git checkout conflict-branch &&
-	set_fake_editor &&
-	test_must_fail git rebase --onto HEAD~2 HEAD~ &&
-	test_must_fail git rebase --edit-todo &&
+	(
+		set_fake_editor &&
+		test_must_fail git rebase --onto HEAD~2 HEAD~ &&
+		test_must_fail git rebase --edit-todo
+	) &&
 	git rebase --abort
 '
 
 test_expect_success 'rebase --edit-todo can be used to modify todo' '
 	git reset --hard &&
 	git checkout no-conflict-branch^0 &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1 2 3" git rebase -i HEAD~3 &&
-	FAKE_LINES="2 1" git rebase --edit-todo &&
-	git rebase --continue &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 2 3" git rebase -i HEAD~3 &&
+		FAKE_LINES="2 1" git rebase --edit-todo &&
+		git rebase --continue
+	) &&
 	test M = $(git cat-file commit HEAD^ | sed -ne \$p) &&
 	test L = $(git cat-file commit HEAD | sed -ne \$p)
 '
@@ -1106,8 +1201,10 @@ test_expect_success 'rebase -i respects core.commentchar' '
 	sed -e "2,\$s/^/\\\\/" "$1" >"$1.tmp" &&
 	mv "$1.tmp" "$1"
 	EOF
-	test_set_editor "$(pwd)/remove-all-but-first.sh" &&
-	git rebase -i B &&
+	(
+		test_set_editor "$(pwd)/remove-all-but-first.sh" &&
+		git rebase -i B
+	) &&
 	test B = $(git cat-file commit HEAD^ | sed -ne \$p)
 '
 
@@ -1116,9 +1213,11 @@ test_expect_success 'rebase -i respects core.commentchar=auto' '
 	write_script copy-edit-script.sh <<-\EOF &&
 	cp "$1" edit-script
 	EOF
-	test_set_editor "$(pwd)/copy-edit-script.sh" &&
 	test_when_finished "git rebase --abort || :" &&
-	git rebase -i HEAD^ &&
+	(
+		test_set_editor "$(pwd)/copy-edit-script.sh" &&
+		git rebase -i HEAD^
+	) &&
 	test -z "$(grep -ve "^#" -e "^\$" -e "^pick" edit-script)"
 '
 
@@ -1153,8 +1252,11 @@ test_expect_success 'interrupted rebase -i with --strategy and -X' '
 	echo five >conflict &&
 	echo Z >file1 &&
 	git commit -a -m "one file conflict" &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1 2" git rebase -i --strategy=recursive -Xours conflict-branch &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 2" git rebase -i --strategy=recursive \
+			-Xours conflict-branch
+	) &&
 	git rebase --continue &&
 	test $(git show conflict-branch:conflict) = $(cat conflict) &&
 	test $(cat file1) = Z
@@ -1195,8 +1297,10 @@ test_expect_success 'short SHA-1 collide' '
 
 test_expect_success 'respect core.abbrev' '
 	git config core.abbrev 12 &&
-	set_cat_todo_editor &&
-	test_must_fail git rebase -i HEAD~4 >todo-list &&
+	(
+		set_cat_todo_editor &&
+		test_must_fail git rebase -i HEAD~4 >todo-list
+	) &&
 	test 4 = $(grep -c "pick [0-9a-f]\{12,\}" todo-list)
 '
 
@@ -1204,16 +1308,20 @@ test_expect_success 'todo count' '
 	write_script dump-raw.sh <<-\EOF &&
 		cat "$1"
 	EOF
-	test_set_editor "$(pwd)/dump-raw.sh" &&
-	git rebase -i HEAD~4 >actual &&
+	(
+		test_set_editor "$(pwd)/dump-raw.sh" &&
+		git rebase -i HEAD~4 >actual
+	) &&
 	test_i18ngrep "^# Rebase ..* onto ..* ([0-9]" actual
 '
 
 test_expect_success 'rebase -i commits that overwrite untracked files (pick)' '
 	git checkout --force branch2 &&
 	git clean -f &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1 2" git rebase -i A &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 2" git rebase -i A
+	) &&
 	test_cmp_rev HEAD F &&
 	test_path_is_missing file6 &&
 	>file6 &&
@@ -1228,8 +1336,10 @@ test_expect_success 'rebase -i commits that overwrite untracked files (squash)'
 	git checkout --force branch2 &&
 	git clean -f &&
 	git tag original-branch2 &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1 squash 2" git rebase -i A &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 squash 2" git rebase -i A
+	) &&
 	test_cmp_rev HEAD F &&
 	test_path_is_missing file6 &&
 	>file6 &&
@@ -1244,8 +1354,10 @@ test_expect_success 'rebase -i commits that overwrite untracked files (squash)'
 test_expect_success 'rebase -i commits that overwrite untracked files (no ff)' '
 	git checkout --force branch2 &&
 	git clean -f &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1 2" git rebase -i --no-ff A &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 2" git rebase -i --no-ff A
+	) &&
 	test $(git cat-file commit HEAD | sed -ne \$p) = F &&
 	test_path_is_missing file6 &&
 	>file6 &&
@@ -1268,8 +1380,10 @@ test_expect_success 'rebase --continue removes CHERRY_PICK_HEAD' '
 	git tag seq-onto &&
 	git reset --hard HEAD~2 &&
 	git cherry-pick seq-onto &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES= git rebase -i seq-onto &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES= git rebase -i seq-onto
+	) &&
 	test -d .git/rebase-merge &&
 	git rebase --continue &&
 	git diff --exit-code seq-onto &&
@@ -1288,8 +1402,10 @@ rebase_setup_and_clean () {
 
 test_expect_success 'drop' '
 	rebase_setup_and_clean drop-test &&
-	set_fake_editor &&
-	FAKE_LINES="1 drop 2 3 d 4 5" git rebase -i --root &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 drop 2 3 d 4 5" git rebase -i --root
+	) &&
 	test E = $(git cat-file commit HEAD | sed -ne \$p) &&
 	test C = $(git cat-file commit HEAD^ | sed -ne \$p) &&
 	test A = $(git cat-file commit HEAD^^ | sed -ne \$p)
@@ -1298,9 +1414,10 @@ test_expect_success 'drop' '
 test_expect_success 'rebase -i respects rebase.missingCommitsCheck = ignore' '
 	test_config rebase.missingCommitsCheck ignore &&
 	rebase_setup_and_clean missing-commit &&
-	set_fake_editor &&
-	FAKE_LINES="1 2 3 4" \
-		git rebase -i --root 2>actual &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 3 4" git rebase -i --root 2>actual
+	) &&
 	test D = $(git cat-file commit HEAD | sed -ne \$p) &&
 	test_i18ngrep \
 		"Successfully rebased and updated refs/heads/missing-commit" \
@@ -1316,9 +1433,10 @@ test_expect_success 'rebase -i respects rebase.missingCommitsCheck = warn' '
 	EOF
 	test_config rebase.missingCommitsCheck warn &&
 	rebase_setup_and_clean missing-commit &&
-	set_fake_editor &&
-	FAKE_LINES="1 2 3 4" \
-		git rebase -i --root 2>actual.2 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 3 4" git rebase -i --root 2>actual.2
+	) &&
 	head -n4 actual.2 >actual &&
 	test_i18ncmp expect actual &&
 	test D = $(git cat-file commit HEAD | sed -ne \$p)
@@ -1340,14 +1458,15 @@ test_expect_success 'rebase -i respects rebase.missingCommitsCheck = error' '
 	EOF
 	test_config rebase.missingCommitsCheck error &&
 	rebase_setup_and_clean missing-commit &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 2 4" \
-		git rebase -i --root 2>actual &&
-	test_i18ncmp expect actual &&
-	cp .git/rebase-merge/git-rebase-todo.backup \
-		.git/rebase-merge/git-rebase-todo &&
-	FAKE_LINES="1 2 drop 3 4 drop 5" \
-		git rebase --edit-todo &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 2 4" \
+			git rebase -i --root 2>actual &&
+		test_i18ncmp expect actual &&
+		cp .git/rebase-merge/git-rebase-todo.backup \
+			.git/rebase-merge/git-rebase-todo &&
+		FAKE_LINES="1 2 drop 3 4 drop 5" git rebase --edit-todo
+	) &&
 	git rebase --continue &&
 	test D = $(git cat-file commit HEAD | sed -ne \$p) &&
 	test B = $(git cat-file commit HEAD^ | sed -ne \$p)
@@ -1368,21 +1487,27 @@ test_expect_success 'respects rebase.abbreviateCommands with fixup, squash and e
 	x git show HEAD
 	EOF
 	git checkout abbrevcmd &&
-	set_cat_todo_editor &&
 	test_config rebase.abbreviateCommands true &&
-	test_must_fail git rebase -i --exec "git show HEAD" \
-		--autosquash master >actual &&
+	(
+		set_cat_todo_editor &&
+		test_must_fail git rebase -i --exec "git show HEAD" \
+			--autosquash master >actual
+	) &&
 	test_cmp expected actual
 '
 
 test_expect_success 'static check of bad command' '
 	rebase_setup_and_clean bad-cmd &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 2 3 bad 4 5" \
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 2 3 bad 4 5" \
 		git rebase -i --root 2>actual &&
-	test_i18ngrep "badcmd $(git rev-list --oneline -1 master~1)" actual &&
-	test_i18ngrep "You can fix this with .git rebase --edit-todo.." actual &&
-	FAKE_LINES="1 2 3 drop 4 5" git rebase --edit-todo &&
+		test_i18ngrep "badcmd $(git rev-list --oneline -1 master~1)" \
+				actual &&
+		test_i18ngrep "You can fix this with .git rebase --edit-todo.." \
+				actual &&
+		FAKE_LINES="1 2 3 drop 4 5" git rebase --edit-todo
+	) &&
 	git rebase --continue &&
 	test E = $(git cat-file commit HEAD | sed -ne \$p) &&
 	test C = $(git cat-file commit HEAD^ | sed -ne \$p)
@@ -1398,19 +1523,24 @@ test_expect_success 'tabs and spaces are accepted in the todolist' '
 	) >"$1.new"
 	mv "$1.new" "$1"
 	EOF
-	test_set_editor "$(pwd)/add-indent.sh" &&
-	git rebase -i HEAD^^^ &&
+	(
+		test_set_editor "$(pwd)/add-indent.sh" &&
+		git rebase -i HEAD^^^
+	) &&
 	test E = $(git cat-file commit HEAD | sed -ne \$p)
 '
 
 test_expect_success 'static check of bad SHA-1' '
 	rebase_setup_and_clean bad-sha &&
-	set_fake_editor &&
-	test_must_fail env FAKE_LINES="1 2 edit fakesha 3 4 5 #" \
-		git rebase -i --root 2>actual &&
-	test_i18ngrep "edit XXXXXXX False commit" actual &&
-	test_i18ngrep "You can fix this with .git rebase --edit-todo.." actual &&
-	FAKE_LINES="1 2 4 5 6" git rebase --edit-todo &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 2 edit fakesha 3 4 5 #" \
+			git rebase -i --root 2>actual &&
+			test_i18ngrep "edit XXXXXXX False commit" actual &&
+			test_i18ngrep "You can fix this with .git rebase --edit-todo.." \
+					actual &&
+		FAKE_LINES="1 2 4 5 6" git rebase --edit-todo
+	) &&
 	git rebase --continue &&
 	test E = $(git cat-file commit HEAD | sed -ne \$p)
 '
@@ -1430,37 +1560,45 @@ test_expect_success 'editor saves as CR/LF' '
 SQ="'"
 test_expect_success 'rebase -i --gpg-sign=<key-id>' '
 	test_when_finished "test_might_fail git rebase --abort" &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1" git rebase -i --gpg-sign="\"S I Gner\"" HEAD^ \
-		>out 2>err &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i --gpg-sign="\"S I Gner\"" \
+			HEAD^ >out 2>err
+	) &&
 	test_i18ngrep "$SQ-S\"S I Gner\"$SQ" err
 '
 
 test_expect_success 'rebase -i --gpg-sign=<key-id> overrides commit.gpgSign' '
 	test_when_finished "test_might_fail git rebase --abort" &&
 	test_config commit.gpgsign true &&
-	set_fake_editor &&
-	FAKE_LINES="edit 1" git rebase -i --gpg-sign="\"S I Gner\"" HEAD^ \
-		>out 2>err &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i --gpg-sign="\"S I Gner\"" \
+			HEAD^ >out 2>err
+	) &&
 	test_i18ngrep "$SQ-S\"S I Gner\"$SQ" err
 '
 
 test_expect_success 'valid author header after --root swap' '
 	rebase_setup_and_clean author-header no-conflict-branch &&
-	set_fake_editor &&
 	git commit --amend --author="Au ${SQ}thor <author@example.com>" --no-edit &&
 	git cat-file commit HEAD | grep ^author >expected &&
-	FAKE_LINES="5 1" git rebase -i --root &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="5 1" git rebase -i --root
+	) &&
 	git cat-file commit HEAD^ | grep ^author >actual &&
 	test_cmp expected actual
 '
 
 test_expect_success 'valid author header when author contains single quote' '
 	rebase_setup_and_clean author-header no-conflict-branch &&
-	set_fake_editor &&
 	git commit --amend --author="Au ${SQ}thor <author@example.com>" --no-edit &&
 	git cat-file commit HEAD | grep ^author >expected &&
-	FAKE_LINES="2" git rebase -i HEAD~2 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2" git rebase -i HEAD~2
+	) &&
 	git cat-file commit HEAD | grep ^author >actual &&
 	test_cmp expected actual
 '
-- 
gitgitgadget

[PATCH v2 3/6] t3404: remove uneeded calls to set_fake_editor

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

Some tests were calling set_fake_editor to ensure they had a sane no-op
editor set. Now that all the editor setting is done in subshells these
tests can rely on EDITOR=: and so do not need to call set_fake_editor.

Also add a test at the end to detect any future additions messing with
the exported value of $EDITOR.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 t/lib-rebase.sh               | 28 ++++++++++++++++++++++++++++
 t/t3404-rebase-interactive.sh | 25 +++++--------------------
 2 files changed, 33 insertions(+), 20 deletions(-)

diff --git a/t/lib-rebase.sh b/t/lib-rebase.sh
index 7ea30e5006..e4554db85e 100644
--- a/t/lib-rebase.sh
+++ b/t/lib-rebase.sh
@@ -118,3 +118,31 @@ make_empty () {
 	git commit --allow-empty -m "$1" &&
 	git tag "$1"
 }
+
+# Call this (inside test_expect_success) at the end of a test file to
+# check that no tests have changed editor related environment
+# variables or config settings
+test_editor_unchanged () {
+	# We're only interested in exported variables hence 'sh -c'
+	sh -c 'cat >actual <<-EOF
+	EDITOR=$EDITOR
+	FAKE_COMMIT_AMEND=$FAKE_COMMIT_AMEND
+	FAKE_COMMIT_MESSAGE=$FAKE_COMMIT_MESSAGE
+	FAKE_LINES=$FAKE_LINES
+	GIT_EDITOR=$GIT_EDITOR
+	GIT_SEQUENCE_EDITOR=$GIT_SEQUENCE_EDITOR
+	core.editor=$(git config core.editor)
+	sequence.editor=$(git config sequence.editor)
+	EOF'
+	cat >expect <<-\EOF
+	EDITOR=:
+	FAKE_COMMIT_AMEND=
+	FAKE_COMMIT_MESSAGE=
+	FAKE_LINES=
+	GIT_EDITOR=
+	GIT_SEQUENCE_EDITOR=
+	core.editor=
+	sequence.editor=
+	EOF
+	test_cmp expect actual
+}
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index cb9b210000..c5d0326825 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -189,7 +189,6 @@ test_expect_success 'implicit interactive rebase does not invoke sequence editor
 
 test_expect_success 'no changes are a nop' '
 	git checkout branch2 &&
-	set_fake_editor &&
 	git rebase -i F &&
 	test "$(git symbolic-ref -q HEAD)" = "refs/heads/branch2" &&
 	test $(git rev-parse I) = $(git rev-parse HEAD)
@@ -199,7 +198,6 @@ test_expect_success 'test the [branch] option' '
 	git checkout -b dead-end &&
 	git rm file6 &&
 	git commit -m "stop here" &&
-	set_fake_editor &&
 	git rebase -i F branch2 &&
 	test "$(git symbolic-ref -q HEAD)" = "refs/heads/branch2" &&
 	test $(git rev-parse I) = $(git rev-parse branch2) &&
@@ -208,7 +206,6 @@ test_expect_success 'test the [branch] option' '
 
 test_expect_success 'test --onto <branch>' '
 	git checkout -b test-onto branch2 &&
-	set_fake_editor &&
 	git rebase -i --onto branch1 F &&
 	test "$(git symbolic-ref -q HEAD)" = "refs/heads/test-onto" &&
 	test $(git rev-parse HEAD^) = $(git rev-parse branch1) &&
@@ -218,7 +215,6 @@ test_expect_success 'test --onto <branch>' '
 test_expect_success 'rebase on top of a non-conflicting commit' '
 	git checkout branch1 &&
 	git tag original-branch1 &&
-	set_fake_editor &&
 	git rebase -i branch2 &&
 	test file6 = $(git diff --name-only original-branch1) &&
 	test "$(git symbolic-ref -q HEAD)" = "refs/heads/branch1" &&
@@ -264,7 +260,6 @@ test_expect_success 'stop on conflicting pick' '
 	>>>>>>> 5d18e54... G
 	EOF
 	git tag new-branch1 &&
-	set_fake_editor &&
 	test_must_fail git rebase -i master &&
 	test "$(git rev-parse HEAD~3)" = "$(git rev-parse master)" &&
 	test_cmp expect .git/rebase-merge/patch &&
@@ -293,7 +288,6 @@ test_expect_success 'abort' '
 test_expect_success 'abort with error when new base cannot be checked out' '
 	git rm --cached file1 &&
 	git commit -m "remove file in base" &&
-	set_fake_editor &&
 	test_must_fail git rebase -i master > output 2>&1 &&
 	test_i18ngrep "The following untracked working tree files would be overwritten by checkout:" \
 		output &&
@@ -308,7 +302,6 @@ test_expect_success 'retain authorship' '
 	test_tick &&
 	GIT_AUTHOR_NAME="Twerp Snog" git commit -m "different author" &&
 	git tag twerp &&
-	set_fake_editor &&
 	git rebase -i --onto master HEAD^ &&
 	git show HEAD | grep "^Author: Twerp Snog"
 '
@@ -326,7 +319,6 @@ test_expect_success 'retain authorship w/ conflicts' '
 	test_commit b conflict b conflict-b &&
 	GIT_AUTHOR_NAME=$oGIT_AUTHOR_NAME &&
 
-	set_fake_editor &&
 	test_must_fail git rebase -i conflict-a &&
 	echo resolved >conflict &&
 	git add conflict &&
@@ -357,7 +349,6 @@ test_expect_success 'retain authorship when squashing' '
 
 test_expect_success REBASE_P '-p handles "no changes" gracefully' '
 	HEAD=$(git rev-parse HEAD) &&
-	set_fake_editor &&
 	git rebase -i -p HEAD^ &&
 	git update-index --refresh &&
 	git diff-files --quiet &&
@@ -404,7 +395,6 @@ test_expect_success REBASE_P 'preserve merges with -p' '
 	git commit -m M file1 &&
 	git checkout -b to-be-rebased &&
 	test_tick &&
-	set_fake_editor &&
 	git rebase -i -p --onto branch1 master &&
 	git update-index --refresh &&
 	git diff-files --quiet &&
@@ -450,7 +440,6 @@ test_expect_success '--continue tries to commit' '
 test_expect_success 'verbose flag is heeded, even after --continue' '
 	git reset --hard master@{1} &&
 	test_tick &&
-	set_fake_editor &&
 	test_must_fail git rebase -v -i --onto new-branch1 HEAD^ &&
 	echo resolved > file1 &&
 	git add file1 &&
@@ -750,7 +739,6 @@ test_expect_success 'do "noop" when there is nothing to cherry-pick' '
 	GIT_EDITOR=: git commit --amend \
 		--author="Somebody else <somebody@else.com>" &&
 	test $(git rev-parse branch3) != $(git rev-parse branch4) &&
-	set_fake_editor &&
 	git rebase -i branch3 &&
 	test $(git rev-parse branch3) = $(git rev-parse branch4)
 
@@ -775,7 +763,6 @@ test_expect_success 'submodule rebase setup' '
 		git commit -a -m "submodule second"
 	) &&
 	test_tick &&
-	set_fake_editor &&
 	git commit -a -m "Three changes submodule"
 '
 
@@ -800,7 +787,6 @@ test_expect_success 'submodule conflict setup' '
 '
 
 test_expect_success 'rebase -i continue with only submodule staged' '
-	set_fake_editor &&
 	test_must_fail git rebase -i submodule-base &&
 	git add sub &&
 	git rebase --continue &&
@@ -810,7 +796,6 @@ test_expect_success 'rebase -i continue with only submodule staged' '
 test_expect_success 'rebase -i continue with unstaged submodule' '
 	git checkout submodule-topic &&
 	git reset --hard &&
-	set_fake_editor &&
 	test_must_fail git rebase -i submodule-base &&
 	git reset &&
 	git rebase --continue &&
@@ -823,7 +808,6 @@ test_expect_success 'avoid unnecessary reset' '
 	test-tool chmtime =123456789 file3 &&
 	git update-index --refresh &&
 	HEAD=$(git rev-parse HEAD) &&
-	set_fake_editor &&
 	git rebase -i HEAD~4 &&
 	test $HEAD = $(git rev-parse HEAD) &&
 	MTIME=$(test-tool chmtime --get file3) &&
@@ -858,7 +842,6 @@ test_expect_success 'rebase -i can copy notes' '
 	test_commit n2 &&
 	test_commit n3 &&
 	git notes add -m"a note" n3 &&
-	set_fake_editor &&
 	git rebase -i --onto n1 n2 &&
 	test "a note" = "$(git notes show HEAD)"
 '
@@ -896,7 +879,6 @@ test_tick # Ensure that the rebased commits get a different timestamp.
 test_expect_success 'always cherry-pick with --no-ff' '
 	git checkout no-ff-branch &&
 	git tag original-no-ff-branch &&
-	set_fake_editor &&
 	git rebase -i --no-ff A &&
 	for p in 0 1 2
 	do
@@ -1044,7 +1026,6 @@ test_expect_success 'rebase --exec works without -i ' '
 
 test_expect_success 'rebase -i --exec without <CMD>' '
 	git reset --hard execute &&
-	set_fake_editor &&
 	test_must_fail git rebase -i --exec 2>actual &&
 	test_i18ngrep "requires a value" actual &&
 	git checkout master
@@ -1180,7 +1161,6 @@ test_expect_success 'rebase --edit-todo can be used to modify todo' '
 test_expect_success 'rebase -i produces readable reflog' '
 	git reset --hard &&
 	git branch -f branch-reflog-test H &&
-	set_fake_editor &&
 	git rebase -i --onto I F branch-reflog-test &&
 	cat >expect <<-\EOF &&
 	rebase -i (finish): returning to refs/heads/branch-reflog-test
@@ -1603,4 +1583,9 @@ test_expect_success 'valid author header when author contains single quote' '
 	test_cmp expected actual
 '
 
+# This must be the last test in this file
+test_expect_success '$EDITOR and friends are unchanged' '
+	test_editor_unchanged
+'
+
 test_done
-- 
gitgitgadget

[PATCH v2 4/6] sequencer.h fix placement of #endif

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

Commit 65850686cf ("rebase -i: rewrite write_basic_state() in C",
2018-08-28) accidentially added new function declarations after
the #endif at the end of the include guard.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 sequencer.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sequencer.h b/sequencer.h
index 0c494b83d4..ac66892d71 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -195,11 +195,10 @@ void print_commit_summary(struct repository *repo,
 
 int read_author_script(const char *path, char **name, char **email, char **date,
 		       int allow_missing);
-#endif
-
 void parse_strategy_opts(struct replay_opts *opts, char *raw_opts);
 int write_basic_state(struct replay_opts *opts, const char *head_name,
 		      struct commit *onto, const char *orig_head);
 void sequencer_post_commit_cleanup(struct repository *r);
 int sequencer_get_last_command(struct repository* r,
 			       enum replay_action *action);
+#endif /* SEQUENCER_H */
-- 
gitgitgadget

[PATCH v2 5/6] move run_commit_hook() to libgit and use it there

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

This function was declared in commit.h but was implemented in
builtin/commit.c so was not part of libgit. Move it to libgit so we can
use it in the sequencer. This simplifies the implementation of
run_prepare_commit_msg_hook() and will be used in the next commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 builtin/commit.c | 22 ----------------------
 commit.c         | 24 ++++++++++++++++++++++++
 sequencer.c      | 23 ++++++++++-------------
 3 files changed, 34 insertions(+), 35 deletions(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index 1921401117..d898a57f5d 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1443,28 +1443,6 @@ static int git_commit_config(const char *k, const char *v, void *cb)
 	return git_status_config(k, v, s);
 }
 
-int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...)
-{
-	struct argv_array hook_env = ARGV_ARRAY_INIT;
-	va_list args;
-	int ret;
-
-	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", index_file);
-
-	/*
-	 * Let the hook know that no editor will be launched.
-	 */
-	if (!editor_is_used)
-		argv_array_push(&hook_env, "GIT_EDITOR=:");
-
-	va_start(args, name);
-	ret = run_hook_ve(hook_env.argv,name, args);
-	va_end(args);
-	argv_array_clear(&hook_env);
-
-	return ret;
-}
-
 int cmd_commit(int argc, const char **argv, const char *prefix)
 {
 	const char *argv_gc_auto[] = {"gc", "--auto", NULL};
diff --git a/commit.c b/commit.c
index 26ce0770f6..7ca8d12174 100644
--- a/commit.c
+++ b/commit.c
@@ -19,6 +19,7 @@
 #include "advice.h"
 #include "refs.h"
 #include "commit-reach.h"
+#include "run-command.h"
 
 static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
 
@@ -1581,3 +1582,26 @@ size_t ignore_non_trailer(const char *buf, size_t len)
 	}
 	return boc ? len - boc : len - cutoff;
 }
+
+int run_commit_hook(int editor_is_used, const char *index_file,
+		    const char *name, ...)
+{
+	struct argv_array hook_env = ARGV_ARRAY_INIT;
+	va_list args;
+	int ret;
+
+	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", index_file);
+
+	/*
+	 * Let the hook know that no editor will be launched.
+	 */
+	if (!editor_is_used)
+		argv_array_push(&hook_env, "GIT_EDITOR=:");
+
+	va_start(args, name);
+	ret = run_hook_ve(hook_env.argv,name, args);
+	va_end(args);
+	argv_array_clear(&hook_env);
+
+	return ret;
+}
diff --git a/sequencer.c b/sequencer.c
index 2adcf5a639..cdc0d1dfba 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -1127,25 +1127,22 @@ static int run_prepare_commit_msg_hook(struct repository *r,
 				       struct strbuf *msg,
 				       const char *commit)
 {
-	struct argv_array hook_env = ARGV_ARRAY_INIT;
-	int ret;
-	const char *name;
+	int ret = 0;
+	const char *name, *arg1 = NULL, *arg2 = NULL;
 
 	name = git_path_commit_editmsg();
 	if (write_message(msg->buf, msg->len, name, 0))
 		return -1;
 
-	argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", r->index_file);
-	argv_array_push(&hook_env, "GIT_EDITOR=:");
-	if (commit)
-		ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name,
-				  "commit", commit, NULL);
-	else
-		ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name,
-				  "message", NULL);
-	if (ret)
+	if (commit) {
+		arg1 = "commit";
+		arg2 = commit;
+	} else {
+		arg1 = "message";
+	}
+	if (run_commit_hook(0, r->index_file, "prepare-commit-msg", name,
+			    arg1, arg2, NULL))
 		ret = error(_("'prepare-commit-msg' hook failed"));
-	argv_array_clear(&hook_env);
 
 	return ret;
 }
-- 
gitgitgadget

[PATCH v2 6/6] sequencer: run post-commit hook

[Phillip Wood via GitGitGadget]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

Prior to commit 356ee4659b ("sequencer: try to commit without forking
'git commit'", 2017-11-24) the sequencer would always run the
post-commit hook after each pick or revert as it forked `git commit` to
create the commit. The conversion to committing without forking `git
commit` omitted to call the post-commit hook after creating the commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 sequencer.c                   |  1 +
 t/t3404-rebase-interactive.sh | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/sequencer.c b/sequencer.c
index cdc0d1dfba..da2decbd3a 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -1401,6 +1401,7 @@ static int try_to_commit(struct repository *r,
 		goto out;
 	}
 
+	run_commit_hook(0, r->index_file, "post-commit", NULL);
 	if (flags & AMEND_MSG)
 		commit_post_rewrite(r, current_head, oid);
 
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index c5d0326825..c573c99069 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -1583,6 +1583,25 @@ test_expect_success 'valid author header when author contains single quote' '
 	test_cmp expected actual
 '
 
+test_expect_success 'post-commit hook is called' '
+	test_when_finished "rm -f .git/hooks/post-commit" &&
+	>actual &&
+	mkdir -p .git/hooks &&
+	write_script .git/hooks/post-commit <<-\EOS &&
+	git rev-parse HEAD >>actual
+	EOS
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
+		echo x>file3 &&
+		git add file3 &&
+		FAKE_COMMIT_MESSAGE=edited git rebase --continue
+	) &&
+	git rev-parse HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} HEAD@{1} HEAD \
+		>expect &&
+	test_cmp expect actual
+'
+
 # This must be the last test in this file
 test_expect_success '$EDITOR and friends are unchanged' '
 	test_editor_unchanged
-- 
gitgitgadget

Re: [PATCH v2 0/6] sequencer: start running post-commit hook again

[Johannes Schindelin]

Hi Phillip,

On Tue, 15 Oct 2019, Phillip Wood via GitGitGadget wrote:

> When I converted the sequencer to avoid forking git commit i forgot about
> the post-commit hook. These patches are based on
> pw/rebase-i-show-HEAD-to-reword, otherwise the new test fails as that branch
> changes the number of commits we make.
>
> Thanks to Dscho & Junio for their comments on V1. I've made the following
> changes:
>
> Patches 1-3 These are new patches in response to Dscho's request to set
> $EDITOR in a subshell. There were ~80 other tests that weren't doing that
> and they are fixed in these patches. Patch 2 contains the main action,
> unfortunately due to a combination of having to remove the trailing ' &&'
> from the last line moved into the subshell and re-wrapping some lines due to
> the increased indentation --color-moved and --color-moved-ws are of limited
> use when viewing this patch.
>
> Patch 4 (was 1) Unchanged
>
> Patch 5 (was 2) I've moved the function definition to commit.c rather than
> sequencer.c as suggested. I've also removed an unused struct argv_array from
> run_prepare_commit_msg_hook() (There wasn't a compiler warning as it was
> still calling argv_array_clear() at the end of the function) and reworded
> the commit message.
>
> Patch 6 (was 3) I've tided up the test and removed the wrapper function for
> running the post-commit hook as suggested.

I had a look over the patches, too, and all looks good to me.

Thank you so much!
Dscho

>
> Phillip Wood (6):
>   t3404: remove unnecessary subshell
>   t3404: set $EDITOR in subshell
>   t3404: remove uneeded calls to set_fake_editor
>   sequencer.h fix placement of #endif
>   move run_commit_hook() to libgit and use it there
>   sequencer: run post-commit hook
>
>  builtin/commit.c              |  22 --
>  commit.c                      |  24 ++
>  sequencer.c                   |  24 +-
>  sequencer.h                   |   3 +-
>  t/lib-rebase.sh               |  28 ++
>  t/t3404-rebase-interactive.sh | 596 +++++++++++++++++++++-------------
>  6 files changed, 432 insertions(+), 265 deletions(-)
>
>
> base-commit: b0a3186140dbc7bd64cbc6ef733386a0f1eb6a4d
> Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-388%2Fphillipwood%2Fwip%2Frebase-commit-hooks-v2
> Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-388/phillipwood/wip/rebase-commit-hooks-v2
> Pull-Request: https://github.com/gitgitgadget/git/pull/388
>
> Range-diff vs v1:
>
>  -:  ---------- > 1:  b9689e85e5 t3404: remove unnecessary subshell
>  -:  ---------- > 2:  96432cd0f0 t3404: set $EDITOR in subshell
>  -:  ---------- > 3:  09857dee78 t3404: remove uneeded calls to set_fake_editor
>  1:  7305f8d8e8 = 4:  0eac3ede02 sequencer.h fix placement of #endif
>  2:  420ecf442c ! 5:  f394a0e163 sequencer: use run_commit_hook()
>      @@ -1,9 +1,11 @@
>       Author: Phillip Wood <phillip.wood@dunelm.org.uk>
>
>      -    sequencer: use run_commit_hook()
>      +    move run_commit_hook() to libgit and use it there
>
>      -    This simplifies the implementation of run_prepare_commit_msg_hook() and
>      -    will be used in the next commit.
>      +    This function was declared in commit.h but was implemented in
>      +    builtin/commit.c so was not part of libgit. Move it to libgit so we can
>      +    use it in the sequencer. This simplifies the implementation of
>      +    run_prepare_commit_msg_hook() and will be used in the next commit.
>
>           Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
>
>      @@ -40,25 +42,22 @@
>        {
>        	const char *argv_gc_auto[] = {"gc", "--auto", NULL};
>
>      - diff --git a/commit.h b/commit.h
>      - --- a/commit.h
>      - +++ b/commit.h
>      + diff --git a/commit.c b/commit.c
>      + --- a/commit.c
>      + +++ b/commit.c
>       @@
>      - int compare_commits_by_commit_date(const void *a_, const void *b_, void *unused);
>      - int compare_commits_by_gen_then_commit_date(const void *a_, const void *b_, void *unused);
>      + #include "advice.h"
>      + #include "refs.h"
>      + #include "commit-reach.h"
>      ++#include "run-command.h"
>      +
>      + static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
>
>      --LAST_ARG_MUST_BE_NULL
>      --int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
>      --
>      - #endif /* COMMIT_H */
>      -
>      - diff --git a/sequencer.c b/sequencer.c
>      - --- a/sequencer.c
>      - +++ b/sequencer.c
>       @@
>      - 	run_rewrite_hook(&old_head->object.oid, new_head);
>      + 	}
>      + 	return boc ? len - boc : len - cutoff;
>        }
>      -
>      ++
>       +int run_commit_hook(int editor_is_used, const char *index_file,
>       +		    const char *name, ...)
>       +{
>      @@ -81,12 +80,15 @@
>       +
>       +	return ret;
>       +}
>      -+
>      - static int run_prepare_commit_msg_hook(struct repository *r,
>      +
>      + diff --git a/sequencer.c b/sequencer.c
>      + --- a/sequencer.c
>      + +++ b/sequencer.c
>      +@@
>        				       struct strbuf *msg,
>        				       const char *commit)
>        {
>      - 	struct argv_array hook_env = ARGV_ARRAY_INIT;
>      +-	struct argv_array hook_env = ARGV_ARRAY_INIT;
>       -	int ret;
>       -	const char *name;
>       +	int ret = 0;
>      @@ -114,18 +116,7 @@
>       +	if (run_commit_hook(0, r->index_file, "prepare-commit-msg", name,
>       +			    arg1, arg2, NULL))
>        		ret = error(_("'prepare-commit-msg' hook failed"));
>      -+
>      - 	argv_array_clear(&hook_env);
>      +-	argv_array_clear(&hook_env);
>
>        	return ret;
>      -
>      - diff --git a/sequencer.h b/sequencer.h
>      - --- a/sequencer.h
>      - +++ b/sequencer.h
>      -@@
>      - void sequencer_post_commit_cleanup(struct repository *r);
>      - int sequencer_get_last_command(struct repository* r,
>      - 			       enum replay_action *action);
>      -+LAST_ARG_MUST_BE_NULL
>      -+int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
>      - #endif /* SEQUENCER_H */
>      + }
>  3:  acaa086a48 ! 6:  67a711754e sequencer: run post-commit hook
>      @@ -10,52 +10,18 @@
>
>           Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
>
>      - diff --git a/builtin/commit.c b/builtin/commit.c
>      - --- a/builtin/commit.c
>      - +++ b/builtin/commit.c
>      -@@
>      -
>      - 	repo_rerere(the_repository, 0);
>      - 	run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
>      --	run_commit_hook(use_editor, get_index_file(), "post-commit", NULL);
>      -+	run_post_commit_hook(use_editor, get_index_file());
>      - 	if (amend && !no_post_rewrite) {
>      - 		commit_post_rewrite(the_repository, current_head, &oid);
>      - 	}
>      -
>        diff --git a/sequencer.c b/sequencer.c
>        --- a/sequencer.c
>        +++ b/sequencer.c
>      -@@
>      - 	return ret;
>      - }
>      -
>      -+void run_post_commit_hook(int editor_is_used, const char *index_file) {
>      -+	run_commit_hook(editor_is_used, index_file, "post-commit", NULL);
>      -+}
>      -+
>      - static const char implicit_ident_advice_noconfig[] =
>      - N_("Your name and email address were configured automatically based\n"
>      - "on your username and hostname. Please check that they are accurate.\n"
>       @@
>        		goto out;
>        	}
>
>      -+	run_post_commit_hook(0, r->index_file);
>      ++	run_commit_hook(0, r->index_file, "post-commit", NULL);
>        	if (flags & AMEND_MSG)
>        		commit_post_rewrite(r, current_head, oid);
>
>
>      - diff --git a/sequencer.h b/sequencer.h
>      - --- a/sequencer.h
>      - +++ b/sequencer.h
>      -@@
>      - 			       enum replay_action *action);
>      - LAST_ARG_MUST_BE_NULL
>      - int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
>      -+void run_post_commit_hook(int editor_is_used, const char *index_file);
>      - #endif /* SEQUENCER_H */
>      -
>        diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
>        --- a/t/t3404-rebase-interactive.sh
>        +++ b/t/t3404-rebase-interactive.sh
>      @@ -64,20 +30,24 @@
>        '
>
>       +test_expect_success 'post-commit hook is called' '
>      -+	test_when_finished "rm -f .git/hooks/post-commit commits" &&
>      ++	test_when_finished "rm -f .git/hooks/post-commit" &&
>      ++	>actual &&
>       +	mkdir -p .git/hooks &&
>       +	write_script .git/hooks/post-commit <<-\EOS &&
>      -+	git rev-parse HEAD >>commits
>      ++	git rev-parse HEAD >>actual
>       +	EOS
>      -+	set_fake_editor &&
>      -+	FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
>      -+	echo x>file3 &&
>      -+	git add file3 &&
>      -+	FAKE_COMMIT_MESSAGE=edited git rebase --continue &&
>      -+	# rev-list does not support -g --reverse
>      -+	git rev-list --no-walk=unsorted HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} \
>      -+		HEAD@{1} HEAD >expected &&
>      -+	test_cmp expected commits
>      ++	(
>      ++		set_fake_editor &&
>      ++		FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
>      ++		echo x>file3 &&
>      ++		git add file3 &&
>      ++		FAKE_COMMIT_MESSAGE=edited git rebase --continue
>      ++	) &&
>      ++	git rev-parse HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} HEAD@{1} HEAD \
>      ++		>expect &&
>      ++	test_cmp expect actual
>       +'
>       +
>      - test_done
>      + # This must be the last test in this file
>      + test_expect_success '$EDITOR and friends are unchanged' '
>      + 	test_editor_unchanged
>
> --
> gitgitgadget
>

Re: [PATCH v2 0/6] sequencer: start running post-commit hook again

[Junio C Hamano]

Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:

> Hi Phillip,
>
> On Tue, 15 Oct 2019, Phillip Wood via GitGitGadget wrote:
>
>> When I converted the sequencer to avoid forking git commit i forgot about
>> the post-commit hook. These patches are based on
>> pw/rebase-i-show-HEAD-to-reword, otherwise the new test fails as that branch
>> changes the number of commits we make.
>> ...
>
> I had a look over the patches, too, and all looks good to me.

Me three; thanks, both.