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rebase --abort: improve reflog message 

When aborting a rebase the reflog message looks like

	rebase (abort): updating HEAD

which is not very informative. Improve the message by mentioning the
branch that we are returning to as we do at the end of a successful
rebase so it looks like.

	rebase (abort): returning to refs/heads/topic

If GIT_REFLOG_ACTION is set in the environment we no longer omit
"(abort)" from the reflog message. We don't omit "(start)" and
"(finish)" when starting and finishing a rebase in that case so we
shouldn't omit "(abort)".

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Phillip Wood 2022-10-12 09:35:11 +00:00 committed by Junio C Hamano
parent be0d29d301
commit 6159e7add4
2 changed files with 59 additions and 20 deletions
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28
builtin/rebase.c
View File

@ -1001,23 +1001,6 @@ static void NORETURN error_on_missing_default_upstream(void)
exit(1);
}
static void set_reflog_action(struct rebase_options *options)
{
const char *env;
struct strbuf buf = STRBUF_INIT;
if (!is_merge(options))
return;
env = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
if (env && strcmp("rebase", env))
return; /* only override it if it is "rebase" */
strbuf_addf(&buf, "rebase (%s)", options->action);
setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1);
strbuf_release(&buf);
}
static int check_exec_cmd(const char *cmd)
{
if (strchr(cmd, '\n'))
@ -1311,18 +1294,23 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
}
case ACTION_ABORT: {
struct string_list merge_rr = STRING_LIST_INIT_DUP;
options.action = "abort";
set_reflog_action(&options);
struct strbuf head_msg = STRBUF_INIT;
options.action = "abort";
rerere_clear(the_repository, &merge_rr);
string_list_clear(&merge_rr, 1);
if (read_basic_state(&options))
exit(1);
strbuf_addf(&head_msg, "%s (abort): returning to %s",
getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
options.head_name ? options.head_name
: oid_to_hex(&options.orig_head->object.oid));
ropts.oid = &options.orig_head->object.oid;
ropts.head_msg = head_msg.buf;
ropts.branch = options.head_name;
ropts.flags = RESET_HEAD_HARD;
ropts.default_reflog_action = DEFAULT_REFLOG_ACTION;
if (reset_head(the_repository, &ropts) < 0)
die(_("could not move back to %s"),
oid_to_hex(&options.orig_head->object.oid));

51
t/t3406-rebase-message.sh
View File

@ -187,6 +187,57 @@ test_reflog () {
EOF
test_cmp expect actual
'
test_expect_success "rebase $mode --abort reflog${reflog_action:+ GIT_REFLOG_ACTION=$reflog_action}" '
git checkout conflicts &&
test_when_finished "git reset --hard Q" &&
git log -g -1 conflicts >branch-expect &&
(
if test -n "$reflog_action"
then
GIT_REFLOG_ACTION="$reflog_action" &&
export GIT_REFLOG_ACTION
fi &&
test_must_fail git rebase $mode main &&
git rebase --abort
) &&
git log -g --format=%gs -3 >actual &&
write_reflog_expect <<-EOF &&
${reflog_action:-rebase} (abort): returning to refs/heads/conflicts
${reflog_action:-rebase} (pick): P
${reflog_action:-rebase} (start): checkout main
EOF
test_cmp expect actual &&
# check branch reflog is unchanged
git log -g -1 conflicts >branch-actual &&
test_cmp branch-expect branch-actual
'
test_expect_success "rebase $mode --abort detached HEAD reflog${reflog_action:+ GIT_REFLOG_ACTION=$reflog_action}" '
git checkout Q &&
test_when_finished "git reset --hard Q" &&
(
if test -n "$reflog_action"
then
GIT_REFLOG_ACTION="$reflog_action" &&
export GIT_REFLOG_ACTION
fi &&
test_must_fail git rebase $mode main &&
git rebase --abort
) &&
git log -g --format=%gs -3 >actual &&
write_reflog_expect <<-EOF &&
${reflog_action:-rebase} (abort): returning to $(git rev-parse Q)
${reflog_action:-rebase} (pick): P
${reflog_action:-rebase} (start): checkout main
EOF
test_cmp expect actual
'
}
test_reflog --merge