From 13a5a9f0fdcf36270dcc2dcb7752c281bbea06f1 Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Thu, 29 Nov 2018 11:09:21 -0800 Subject: [PATCH] rebase: fix GIT_REFLOG_ACTION regression The scripted version of "rebase" honored the `GIT_REFLOG_ACTION`, and some automation scripts expected the reflog entries to be prefixed with "rebase -i", not "rebase", after running "rebase -i". This regressed in the reimplementation in C. Fix that, and add a regression test, both with `GIT_REFLOG_ACTION` set and unset. Note: the reflog message for "rebase finished" did *not* honor GIT_REFLOG_ACTION, and as we are very late in the v2.20.0-rcN phase, we leave that bug for later (as it seems that that bug has been with us from the very beginning). Reported by Ian Jackson. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 29 ++++++++++++++++++++++++++--- t/t3406-rebase-message.sh | 26 ++++++++++++++++++++++++++ 2 files changed, 52 insertions(+), 3 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index 5b3e5baec8..ba0c3c954b 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -776,6 +776,23 @@ 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_interactive(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 -i (%s)", options->action); + setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1); + strbuf_release(&buf); +} + int cmd_rebase(int argc, const char **argv, const char *prefix) { struct rebase_options options = { @@ -978,6 +995,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (action != NO_ACTION && !in_progress) die(_("No rebase in progress?")); + setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0); if (action == ACTION_EDIT_TODO && !is_interactive(&options)) die(_("The --edit-todo action can only be used during " @@ -990,6 +1008,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) int fd; options.action = "continue"; + set_reflog_action(&options); /* Sanity check */ if (get_oid("HEAD", &head)) @@ -1018,6 +1037,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) struct string_list merge_rr = STRING_LIST_INIT_DUP; options.action = "skip"; + set_reflog_action(&options); rerere_clear(&merge_rr); string_list_clear(&merge_rr, 1); @@ -1033,6 +1053,7 @@ 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); rerere_clear(&merge_rr); string_list_clear(&merge_rr, 1); @@ -1440,11 +1461,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) } strbuf_reset(&buf); - strbuf_addf(&buf, "rebase: checkout %s", + strbuf_addf(&buf, "%s: checkout %s", + getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.switch_to); if (reset_head(&oid, "checkout", options.head_name, 0, - NULL, NULL) < 0) { + NULL, buf.buf) < 0) { ret = !!error(_("could not switch to " "%s"), options.switch_to); @@ -1508,7 +1530,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) printf(_("First, rewinding head to replay your work on top of " "it...\n")); - strbuf_addf(&msg, "rebase: checkout %s", options.onto_name); + strbuf_addf(&msg, "%s: checkout %s", + getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name); if (reset_head(&options.onto->object.oid, "checkout", NULL, RESET_HEAD_DETACH, NULL, msg.buf)) die(_("Could not detach HEAD")); diff --git a/t/t3406-rebase-message.sh b/t/t3406-rebase-message.sh index 38bd876cab..db8505eb86 100755 --- a/t/t3406-rebase-message.sh +++ b/t/t3406-rebase-message.sh @@ -91,4 +91,30 @@ test_expect_success 'error out early upon -C or --whitespace=' ' test_i18ngrep "Invalid whitespace option" err ' +test_expect_success 'GIT_REFLOG_ACTION' ' + git checkout start && + test_commit reflog-onto && + git checkout -b reflog-topic start && + test_commit reflog-to-rebase && + + git rebase reflog-onto && + git log -g --format=%gs -3 >actual && + cat >expect <<-\EOF && + rebase finished: returning to refs/heads/reflog-topic + rebase: reflog-to-rebase + rebase: checkout reflog-onto + EOF + test_cmp expect actual && + + git checkout -b reflog-prefix reflog-to-rebase && + GIT_REFLOG_ACTION=change-the-reflog git rebase reflog-onto && + git log -g --format=%gs -3 >actual && + cat >expect <<-\EOF && + rebase finished: returning to refs/heads/reflog-prefix + change-the-reflog: reflog-to-rebase + change-the-reflog: checkout reflog-onto + EOF + test_cmp expect actual +' + test_done -- 2.43.2