Message ID | b7e30c9b7abecdc871ddc38122ca042e940cb190.1637039888.git.gitgitgadget@gmail.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show |
Series | am: support --empty-commit=(die|skip|asis) option to am empty commits | expand |
Hi Aleen Thanks for working on this On 16/11/2021 05:18, Aleen via GitGitGadget wrote: > From: Aleen <aleen42@vip.qq.com> > > Signed-off-by: Aleen <aleen42@vip.qq.com> > --- > Documentation/git-am.txt | 9 +++++ > builtin/am.c | 48 +++++++++++++++++++++++--- > t/t4150-am.sh | 73 ++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 125 insertions(+), 5 deletions(-) > > diff --git a/Documentation/git-am.txt b/Documentation/git-am.txt > index 0a4a984dfde..d8d3bf202d7 100644 > --- a/Documentation/git-am.txt > +++ b/Documentation/git-am.txt > @@ -16,6 +16,7 @@ SYNOPSIS > [--exclude=<path>] [--include=<path>] [--reject] [-q | --quiet] > [--[no-]scissors] [-S[<keyid>]] [--patch-format=<format>] > [--quoted-cr=<action>] > + [--empty-commit=(die|skip|asis)] > [(<mbox> | <Maildir>)...] > 'git am' (--continue | --skip | --abort | --quit | --show-current-patch[=(diff|raw)]) > > @@ -63,6 +64,14 @@ OPTIONS > --quoted-cr=<action>:: > This flag will be passed down to 'git mailinfo' (see linkgit:git-mailinfo[1]). > > +--empty-commit=(die|skip|asis):: > + The command usually errors out when seeing an input e-mail > + message that lacks a patch. When this option is set to > + 'skip', skip such an e-mail message without outputting error. > + When this option is set to 'asis', create an empty commit, > + recording the contents of the e-mail message as its log. > + 'die' is specified by default. This feels sufficiently similar to the case of handling empty commits in 'git rebase' that it is worth trying to have a similar user interface. Otherwise the two commands have two different option names doing more or less the same thing. 'git rebase' has --empty=[drop,keep,ask] where drop is the default. If am were to accept --empty=[drop,keep,die] it would offer a similar user experience. Best Wishes Phillip > -m:: > --message-id:: > Pass the `-m` flag to 'git mailinfo' (see linkgit:git-mailinfo[1]), > diff --git a/builtin/am.c b/builtin/am.c > index 8677ea2348a..e7755c1377e 100644 > --- a/builtin/am.c > +++ b/builtin/am.c > @@ -87,6 +87,12 @@ enum show_patch_type { > SHOW_PATCH_DIFF = 1, > }; > > +enum empty_commit_action { > + DIE_EMPTY_COMMIT = 0, /* output errors */ > + SKIP_EMPTY_COMMIT, /* skip without outputting errors */ > + ASIS_EMPTY_COMMIT /* keep recording as empty commits */ > +}; > + > struct am_state { > /* state directory path */ > char *dir; > @@ -118,6 +124,7 @@ struct am_state { > int message_id; > int scissors; /* enum scissors_type */ > int quoted_cr; /* enum quoted_cr_action */ > + int empty_commit; /* enum empty_commit_action */ > struct strvec git_apply_opts; > const char *resolvemsg; > int committer_date_is_author_date; > @@ -178,6 +185,23 @@ static int am_option_parse_quoted_cr(const struct option *opt, > return 0; > } > > +static int am_option_parse_empty_commit(const struct option *opt, > + const char *arg, int unset) > +{ > + int *opt_value = opt->value; > + > + if (unset || !strcmp(arg, "die")) > + *opt_value = DIE_EMPTY_COMMIT; > + else if (!strcmp(arg, "skip")) > + *opt_value = SKIP_EMPTY_COMMIT; > + else if (!strcmp(arg, "asis")) > + *opt_value = ASIS_EMPTY_COMMIT; > + else > + return error(_("Invalid value for --empty-commit: %s"), arg); > + > + return 0; > +} > + > /** > * Returns path relative to the am_state directory. > */ > @@ -1248,11 +1272,6 @@ static int parse_mail(struct am_state *state, const char *mail) > goto finish; > } > > - if (is_empty_or_missing_file(am_path(state, "patch"))) { > - printf_ln(_("Patch is empty.")); > - die_user_resolve(state); > - } > - > strbuf_addstr(&msg, "\n\n"); > strbuf_addbuf(&msg, &mi.log_message); > strbuf_stripspace(&msg, 0); > @@ -1792,6 +1811,20 @@ static void am_run(struct am_state *state, int resume) > if (state->interactive && do_interactive(state)) > goto next; > > + if (is_empty_or_missing_file(am_path(state, "patch"))) { > + if (state->empty_commit == SKIP_EMPTY_COMMIT) > + goto next; > + else if (state->empty_commit == ASIS_EMPTY_COMMIT) { > + if (run_applypatch_msg_hook(state)) > + exit(1); > + else > + goto commit; > + } else if (state->empty_commit == DIE_EMPTY_COMMIT) { > + printf_ln(_("Patch is empty.")); > + die_user_resolve(state); > + } > + } > + > if (run_applypatch_msg_hook(state)) > exit(1); > > @@ -1827,6 +1860,7 @@ static void am_run(struct am_state *state, int resume) > die_user_resolve(state); > } > > +commit: > do_commit(state); > > next: > @@ -2357,6 +2391,10 @@ int cmd_am(int argc, const char **argv, const char *prefix) > { OPTION_STRING, 'S', "gpg-sign", &state.sign_commit, N_("key-id"), > N_("GPG-sign commits"), > PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, > + { OPTION_CALLBACK, 0, "empty-commit", &state.empty_commit, > + "(die|skip|asis)", > + N_("specify how to handle empty patches"), > + PARSE_OPT_OPTARG, am_option_parse_empty_commit }, > OPT_HIDDEN_BOOL(0, "rebasing", &state.rebasing, > N_("(internal use for git-rebase)")), > OPT_END() > diff --git a/t/t4150-am.sh b/t/t4150-am.sh > index 2aaaa0d7ded..e657180c201 100755 > --- a/t/t4150-am.sh > +++ b/t/t4150-am.sh > @@ -196,6 +196,13 @@ test_expect_success setup ' > > git format-patch -M --stdout lorem^ >rename-add.patch && > > + git checkout -b empty-commit && > + git commit -m "empty commit" --allow-empty && > + > + git format-patch --stdout empty-commit^ >empty.patch && > + git format-patch --stdout --cover-letter empty-commit^ >cover-letter.patch && > + git format-patch --always --stdout empty-commit^ >empty-commit.patch && > + > # reset time > sane_unset test_tick && > test_tick > @@ -1152,4 +1159,70 @@ test_expect_success 'apply binary blob in partial clone' ' > git -C client am ../patch > ' > > +test_expect_success 'still output error with --empty-commit when meeting empty files' ' > + test_must_fail git am --empty-commit=skip empty.patch 2>actual && > + echo Patch format detection failed. >expected && > + test_cmp expected actual > +' > + > +test_expect_success 'error when meeting e-mail message that lacks a patch by default' ' > + git checkout empty-commit^ && > + test_must_fail git am empty-commit.patch >err && > + test_path_is_dir .git/rebase-apply && > + test_i18ngrep "Patch is empty." err && > + rm -fr .git/rebase-apply && > + > + test_must_fail git am --empty-commit=die empty-commit.patch >err && > + test_path_is_dir .git/rebase-apply && > + test_i18ngrep "Patch is empty." err && > + rm -fr .git/rebase-apply && > + > + test_must_fail git am --empty-commit=die cover-letter.patch >err && > + test_path_is_dir .git/rebase-apply && > + test_i18ngrep "Patch is empty." err && > + rm -fr .git/rebase-apply > +' > + > +test_expect_success 'skip without error when meeting e-mail message that lacks a patch' ' > + git am --empty-commit=skip empty-commit.patch >err && > + test_path_is_missing .git/rebase-apply && > + git rev-parse empty-commit^ >expected && > + git rev-parse HEAD >actual && > + test_cmp expected actual && > + > + git am --empty-commit=skip cover-letter.patch >err && > + test_path_is_missing .git/rebase-apply && > + test_cmp_rev empty-commit^ HEAD > +' > + > +test_expect_success 'record as an empty commit when meeting e-mail message that lacks a patch' ' > + git am --empty-commit=asis empty-commit.patch && > + test_path_is_missing .git/rebase-apply && > + { > + git show empty-commit --format="%B" && > + echo "--" && > + git version | sed -e "s/^git version //" && > + echo > + } >expected && > + git show HEAD --format="%B" >actual && > + test_cmp actual expected && > + > + git am --empty-commit=asis cover-letter.patch && > + test_path_is_missing .git/rebase-apply && > + { > + echo "*** SUBJECT HERE ***" && > + echo && > + echo "*** BLURB HERE ***" && > + echo && > + echo "A U Thor (1):" && > + printf " " && > + git show empty-commit --format="%B" && > + echo "--" && > + git version | sed -e "s/^git version //" && > + echo > + } >expected && > + git show HEAD --format="%B" >actual && > + test_cmp actual expected > +' > + > test_done >
> > +--empty-commit=(die|skip|asis):: > > + The command usually errors out when seeing an input e-mail > > + message that lacks a patch. When this option is set to > > + 'skip', skip such an e-mail message without outputting error. > > + When this option is set to 'asis', create an empty commit, > > + recording the contents of the e-mail message as its log. > > + 'die' is specified by default. > > This feels sufficiently similar to the case of handling empty commits in > 'git rebase' that it is worth trying to have a similar user interface. > Otherwise the two commands have two different option names doing more or > less the same thing. 'git rebase' has --empty=[drop,keep,ask] where drop > is the default. If am were to accept --empty=[drop,keep,die] it would > offer a similar user experience. > > Best Wishes > > Phillip Dears Phillip, It seems a good idea. Can Hamano make a decision? Aleen
Phillip Wood <phillip.wood123@gmail.com> writes: >> +--empty-commit=(die|skip|asis):: >> + The command usually errors out when seeing an input e-mail >> + message that lacks a patch. When this option is set to >> + 'skip', skip such an e-mail message without outputting error. >> + When this option is set to 'asis', create an empty commit, >> + recording the contents of the e-mail message as its log. >> + 'die' is specified by default. > > This feels sufficiently similar to the case of handling empty commits > in 'git rebase' that it is worth trying to have a similar user > interface. Otherwise the two commands have two different option names > doing more or less the same thing. 'git rebase' has > --empty=[drop,keep,ask] where drop is the default. If am were to > accept --empty=[drop,keep,die] it would offer a similar user > experience. Ah, thanks for noticing. I like the three words you suggest. If we already have a similar option, we definitely should follow suit, and I think "--empty" would be a better fit than "--empty-commit" in the context of talking about the _input_ to "am".
diff --git a/Documentation/git-am.txt b/Documentation/git-am.txt index 0a4a984dfde..d8d3bf202d7 100644 --- a/Documentation/git-am.txt +++ b/Documentation/git-am.txt @@ -16,6 +16,7 @@ SYNOPSIS [--exclude=<path>] [--include=<path>] [--reject] [-q | --quiet] [--[no-]scissors] [-S[<keyid>]] [--patch-format=<format>] [--quoted-cr=<action>] + [--empty-commit=(die|skip|asis)] [(<mbox> | <Maildir>)...] 'git am' (--continue | --skip | --abort | --quit | --show-current-patch[=(diff|raw)]) @@ -63,6 +64,14 @@ OPTIONS --quoted-cr=<action>:: This flag will be passed down to 'git mailinfo' (see linkgit:git-mailinfo[1]). +--empty-commit=(die|skip|asis):: + The command usually errors out when seeing an input e-mail + message that lacks a patch. When this option is set to + 'skip', skip such an e-mail message without outputting error. + When this option is set to 'asis', create an empty commit, + recording the contents of the e-mail message as its log. + 'die' is specified by default. + -m:: --message-id:: Pass the `-m` flag to 'git mailinfo' (see linkgit:git-mailinfo[1]), diff --git a/builtin/am.c b/builtin/am.c index 8677ea2348a..e7755c1377e 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -87,6 +87,12 @@ enum show_patch_type { SHOW_PATCH_DIFF = 1, }; +enum empty_commit_action { + DIE_EMPTY_COMMIT = 0, /* output errors */ + SKIP_EMPTY_COMMIT, /* skip without outputting errors */ + ASIS_EMPTY_COMMIT /* keep recording as empty commits */ +}; + struct am_state { /* state directory path */ char *dir; @@ -118,6 +124,7 @@ struct am_state { int message_id; int scissors; /* enum scissors_type */ int quoted_cr; /* enum quoted_cr_action */ + int empty_commit; /* enum empty_commit_action */ struct strvec git_apply_opts; const char *resolvemsg; int committer_date_is_author_date; @@ -178,6 +185,23 @@ static int am_option_parse_quoted_cr(const struct option *opt, return 0; } +static int am_option_parse_empty_commit(const struct option *opt, + const char *arg, int unset) +{ + int *opt_value = opt->value; + + if (unset || !strcmp(arg, "die")) + *opt_value = DIE_EMPTY_COMMIT; + else if (!strcmp(arg, "skip")) + *opt_value = SKIP_EMPTY_COMMIT; + else if (!strcmp(arg, "asis")) + *opt_value = ASIS_EMPTY_COMMIT; + else + return error(_("Invalid value for --empty-commit: %s"), arg); + + return 0; +} + /** * Returns path relative to the am_state directory. */ @@ -1248,11 +1272,6 @@ static int parse_mail(struct am_state *state, const char *mail) goto finish; } - if (is_empty_or_missing_file(am_path(state, "patch"))) { - printf_ln(_("Patch is empty.")); - die_user_resolve(state); - } - strbuf_addstr(&msg, "\n\n"); strbuf_addbuf(&msg, &mi.log_message); strbuf_stripspace(&msg, 0); @@ -1792,6 +1811,20 @@ static void am_run(struct am_state *state, int resume) if (state->interactive && do_interactive(state)) goto next; + if (is_empty_or_missing_file(am_path(state, "patch"))) { + if (state->empty_commit == SKIP_EMPTY_COMMIT) + goto next; + else if (state->empty_commit == ASIS_EMPTY_COMMIT) { + if (run_applypatch_msg_hook(state)) + exit(1); + else + goto commit; + } else if (state->empty_commit == DIE_EMPTY_COMMIT) { + printf_ln(_("Patch is empty.")); + die_user_resolve(state); + } + } + if (run_applypatch_msg_hook(state)) exit(1); @@ -1827,6 +1860,7 @@ static void am_run(struct am_state *state, int resume) die_user_resolve(state); } +commit: do_commit(state); next: @@ -2357,6 +2391,10 @@ int cmd_am(int argc, const char **argv, const char *prefix) { OPTION_STRING, 'S', "gpg-sign", &state.sign_commit, N_("key-id"), N_("GPG-sign commits"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, + { OPTION_CALLBACK, 0, "empty-commit", &state.empty_commit, + "(die|skip|asis)", + N_("specify how to handle empty patches"), + PARSE_OPT_OPTARG, am_option_parse_empty_commit }, OPT_HIDDEN_BOOL(0, "rebasing", &state.rebasing, N_("(internal use for git-rebase)")), OPT_END() diff --git a/t/t4150-am.sh b/t/t4150-am.sh index 2aaaa0d7ded..e657180c201 100755 --- a/t/t4150-am.sh +++ b/t/t4150-am.sh @@ -196,6 +196,13 @@ test_expect_success setup ' git format-patch -M --stdout lorem^ >rename-add.patch && + git checkout -b empty-commit && + git commit -m "empty commit" --allow-empty && + + git format-patch --stdout empty-commit^ >empty.patch && + git format-patch --stdout --cover-letter empty-commit^ >cover-letter.patch && + git format-patch --always --stdout empty-commit^ >empty-commit.patch && + # reset time sane_unset test_tick && test_tick @@ -1152,4 +1159,70 @@ test_expect_success 'apply binary blob in partial clone' ' git -C client am ../patch ' +test_expect_success 'still output error with --empty-commit when meeting empty files' ' + test_must_fail git am --empty-commit=skip empty.patch 2>actual && + echo Patch format detection failed. >expected && + test_cmp expected actual +' + +test_expect_success 'error when meeting e-mail message that lacks a patch by default' ' + git checkout empty-commit^ && + test_must_fail git am empty-commit.patch >err && + test_path_is_dir .git/rebase-apply && + test_i18ngrep "Patch is empty." err && + rm -fr .git/rebase-apply && + + test_must_fail git am --empty-commit=die empty-commit.patch >err && + test_path_is_dir .git/rebase-apply && + test_i18ngrep "Patch is empty." err && + rm -fr .git/rebase-apply && + + test_must_fail git am --empty-commit=die cover-letter.patch >err && + test_path_is_dir .git/rebase-apply && + test_i18ngrep "Patch is empty." err && + rm -fr .git/rebase-apply +' + +test_expect_success 'skip without error when meeting e-mail message that lacks a patch' ' + git am --empty-commit=skip empty-commit.patch >err && + test_path_is_missing .git/rebase-apply && + git rev-parse empty-commit^ >expected && + git rev-parse HEAD >actual && + test_cmp expected actual && + + git am --empty-commit=skip cover-letter.patch >err && + test_path_is_missing .git/rebase-apply && + test_cmp_rev empty-commit^ HEAD +' + +test_expect_success 'record as an empty commit when meeting e-mail message that lacks a patch' ' + git am --empty-commit=asis empty-commit.patch && + test_path_is_missing .git/rebase-apply && + { + git show empty-commit --format="%B" && + echo "--" && + git version | sed -e "s/^git version //" && + echo + } >expected && + git show HEAD --format="%B" >actual && + test_cmp actual expected && + + git am --empty-commit=asis cover-letter.patch && + test_path_is_missing .git/rebase-apply && + { + echo "*** SUBJECT HERE ***" && + echo && + echo "*** BLURB HERE ***" && + echo && + echo "A U Thor (1):" && + printf " " && + git show empty-commit --format="%B" && + echo "--" && + git version | sed -e "s/^git version //" && + echo + } >expected && + git show HEAD --format="%B" >actual && + test_cmp actual expected +' + test_done