diff options
| -rw-r--r-- | Documentation/git-am.txt | 7 | ||||
| -rw-r--r-- | builtin/am.c | 32 | ||||
| -rwxr-xr-x | t/t4150-am.sh | 57 | ||||
| -rwxr-xr-x | t/t7512-status-help.sh | 1 | ||||
| -rw-r--r-- | wt-status.c | 8 |
5 files changed, 95 insertions, 10 deletions
diff --git a/Documentation/git-am.txt b/Documentation/git-am.txt index 7676bd58ae..09107fb106 100644 --- a/Documentation/git-am.txt +++ b/Documentation/git-am.txt @@ -18,7 +18,7 @@ SYNOPSIS [--quoted-cr=<action>] [--empty=(stop|drop|keep)] [(<mbox> | <Maildir>)...] -'git am' (--continue | --skip | --abort | --quit | --show-current-patch[=(diff|raw)]) +'git am' (--continue | --skip | --abort | --quit | --show-current-patch[=(diff|raw)] | --allow-empty) DESCRIPTION ----------- @@ -200,6 +200,11 @@ default. You can use `--no-utf8` to override this. the e-mail message; if `diff`, show the diff portion only. Defaults to `raw`. +--allow-empty:: + After a patch failure on an input e-mail message lacking a patch, + create an empty commit with the contents of the e-mail message + as its log message. + DISCUSSION ---------- diff --git a/builtin/am.c b/builtin/am.c index 7a66ad2373..f2e7e53388 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -1152,6 +1152,12 @@ static void NORETURN die_user_resolve(const struct am_state *state) printf_ln(_("When you have resolved this problem, run \"%s --continue\"."), cmdline); printf_ln(_("If you prefer to skip this patch, run \"%s --skip\" instead."), cmdline); + + if (advice_enabled(ADVICE_AM_WORK_DIR) && + is_empty_or_missing_file(am_path(state, "patch")) && + !repo_index_has_changes(the_repository, NULL, NULL)) + printf_ln(_("To record the empty patch as an empty commit, run \"%s --allow-empty\"."), cmdline); + printf_ln(_("To restore the original branch and stop patching, run \"%s --abort\"."), cmdline); } @@ -1900,19 +1906,24 @@ next: /** * Resume the current am session after patch application failure. The user did * all the hard work, and we do not have to do any patch application. Just - * trust and commit what the user has in the index and working tree. + * trust and commit what the user has in the index and working tree. If `allow_empty` + * is true, commit as an empty commit when index has not changed and lacking a patch. */ -static void am_resolve(struct am_state *state) +static void am_resolve(struct am_state *state, int allow_empty) { validate_resume_state(state); say(state, stdout, _("Applying: %.*s"), linelen(state->msg), state->msg); if (!repo_index_has_changes(the_repository, NULL, NULL)) { - printf_ln(_("No changes - did you forget to use 'git add'?\n" - "If there is nothing left to stage, chances are that something else\n" - "already introduced the same changes; you might want to skip this patch.")); - die_user_resolve(state); + if (allow_empty && is_empty_or_missing_file(am_path(state, "patch"))) { + printf_ln(_("No changes - recorded it as an empty commit.")); + } else { + printf_ln(_("No changes - did you forget to use 'git add'?\n" + "If there is nothing left to stage, chances are that something else\n" + "already introduced the same changes; you might want to skip this patch.")); + die_user_resolve(state); + } } if (unmerged_cache()) { @@ -2239,7 +2250,8 @@ enum resume_type { RESUME_SKIP, RESUME_ABORT, RESUME_QUIT, - RESUME_SHOW_PATCH + RESUME_SHOW_PATCH, + RESUME_ALLOW_EMPTY, }; struct resume_mode { @@ -2392,6 +2404,9 @@ int cmd_am(int argc, const char **argv, const char *prefix) N_("show the patch being applied"), PARSE_OPT_CMDMODE | PARSE_OPT_OPTARG | PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP, parse_opt_show_current_patch, RESUME_SHOW_PATCH }, + OPT_CMDMODE(0, "allow-empty", &resume.mode, + N_("record the empty patch as an empty commit"), + RESUME_ALLOW_EMPTY), OPT_BOOL(0, "committer-date-is-author-date", &state.committer_date_is_author_date, N_("lie about committer date")), @@ -2500,7 +2515,8 @@ int cmd_am(int argc, const char **argv, const char *prefix) am_run(&state, 1); break; case RESUME_RESOLVED: - am_resolve(&state); + case RESUME_ALLOW_EMPTY: + am_resolve(&state, resume.mode == RESUME_ALLOW_EMPTY ? 1 : 0); break; case RESUME_SKIP: am_skip(&state); diff --git a/t/t4150-am.sh b/t/t4150-am.sh index f2a7a68eda..2db2c5dfe5 100755 --- a/t/t4150-am.sh +++ b/t/t4150-am.sh @@ -1202,4 +1202,61 @@ test_expect_success 'record as an empty commit when meeting e-mail message that grep "Creating an empty commit: empty commit" output ' +test_expect_success 'skip an empty patch in the middle of an am session' ' + git checkout empty-commit^ && + test_must_fail git am empty-commit.patch >err && + grep "Patch is empty." err && + grep "To record the empty patch as an empty commit, run \"git am --allow-empty\"." err && + git am --skip && + test_path_is_missing .git/rebase-apply && + git rev-parse empty-commit^ >expected && + git rev-parse HEAD >actual && + test_cmp expected actual +' + +test_expect_success 'record an empty patch as an empty commit in the middle of an am session' ' + git checkout empty-commit^ && + test_must_fail git am empty-commit.patch >err && + grep "Patch is empty." err && + grep "To record the empty patch as an empty commit, run \"git am --allow-empty\"." err && + git am --allow-empty >output && + grep "No changes - recorded it as an empty commit." output && + test_path_is_missing .git/rebase-apply && + git show empty-commit --format="%B" >expected && + git show HEAD --format="%B" >actual && + grep -f actual expected +' + +test_expect_success 'create an non-empty commit when the index IS changed though "--allow-empty" is given' ' + git checkout empty-commit^ && + test_must_fail git am empty-commit.patch >err && + : >empty-file && + git add empty-file && + git am --allow-empty && + git show empty-commit --format="%B" >expected && + git show HEAD --format="%B" >actual && + grep -f actual expected && + git diff HEAD^..HEAD --name-only +' + +test_expect_success 'cannot create empty commits when there is a clean index due to merge conflicts' ' + test_when_finished "git am --abort || :" && + git rev-parse HEAD >expected && + test_must_fail git am seq.patch && + test_must_fail git am --allow-empty >err && + ! grep "To record the empty patch as an empty commit, run \"git am --allow-empty\"." err && + git rev-parse HEAD >actual && + test_cmp actual expected +' + +test_expect_success 'cannot create empty commits when there is unmerged index due to merge conflicts' ' + test_when_finished "git am --abort || :" && + git rev-parse HEAD >expected && + test_must_fail git am -3 seq.patch && + test_must_fail git am --allow-empty >err && + ! grep "To record the empty patch as an empty commit, run \"git am --allow-empty\"." err && + git rev-parse HEAD >actual && + test_cmp actual expected +' + test_done diff --git a/t/t7512-status-help.sh b/t/t7512-status-help.sh index 7f2956d77a..2f16d5787e 100755 --- a/t/t7512-status-help.sh +++ b/t/t7512-status-help.sh @@ -659,6 +659,7 @@ On branch am_empty You are in the middle of an am session. The current patch is empty. (use "git am --skip" to skip this patch) + (use "git am --allow-empty" to record this patch as an empty commit) (use "git am --abort" to restore the original branch) nothing to commit (use -u to show untracked files) diff --git a/wt-status.c b/wt-status.c index e4f29b2b4c..09045c62e1 100644 --- a/wt-status.c +++ b/wt-status.c @@ -1212,17 +1212,23 @@ static void show_merge_in_progress(struct wt_status *s, static void show_am_in_progress(struct wt_status *s, const char *color) { + int am_empty_patch; + status_printf_ln(s, color, _("You are in the middle of an am session.")); if (s->state.am_empty_patch) status_printf_ln(s, color, _("The current patch is empty.")); if (s->hints) { - if (!s->state.am_empty_patch) + am_empty_patch = s->state.am_empty_patch; + if (!am_empty_patch) status_printf_ln(s, color, _(" (fix conflicts and then run \"git am --continue\")")); status_printf_ln(s, color, _(" (use \"git am --skip\" to skip this patch)")); + if (am_empty_patch) + status_printf_ln(s, color, + _(" (use \"git am --allow-empty\" to record this patch as an empty commit)")); status_printf_ln(s, color, _(" (use \"git am --abort\" to restore the original branch)")); } |