| Message ID | 20190820034536.13071-4-rohit.ashiwal265@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | rebase -i: support more options | expand |
Hi Rohit One thing that struck we was that we should support this with rebase -r which means setting GIT_COMMITTER_DATE when we fork 'git merge'. I've got a couple of other comments below On 20/08/2019 04:45, Rohit Ashiwal wrote: > rebase am already has this flag to "lie" about the committer date > by changing it to the author date. Let's add the same for > interactive machinery. > > Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com> > --- > Documentation/git-rebase.txt | 10 +++-- > builtin/rebase.c | 17 +++++--- > sequencer.c | 57 ++++++++++++++++++++++++- > sequencer.h | 1 + > t/t3422-rebase-incompatible-options.sh | 1 - > t/t3433-rebase-options-compatibility.sh | 19 +++++++++ > 6 files changed, 94 insertions(+), 11 deletions(-) > > diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt > index 873eb5768c..e7c0eac18c 100644 > --- a/Documentation/git-rebase.txt > +++ b/Documentation/git-rebase.txt > @@ -386,9 +386,13 @@ unchanged for the sake of a three-way merge. > See also INCOMPATIBLE OPTIONS below. > > --committer-date-is-author-date:: > + Instead of recording the time the rebased commits are > + created as the committer date, reuse the author date > + as the committer date. This implies --force-rebase. > + > --ignore-date:: > - These flags are passed to 'git am' to easily change the dates > - of the rebased commits (see linkgit:git-am[1]). > + This flag is passed to 'git am' to change the author date > + of each rebased commit (see linkgit:git-am[1]). > + > See also INCOMPATIBLE OPTIONS below. > > @@ -525,7 +529,6 @@ INCOMPATIBLE OPTIONS > > The following options: > > - * --committer-date-is-author-date > * --ignore-date > * --whitespace > * -C > @@ -551,6 +554,7 @@ In addition, the following pairs of options are incompatible: > * --preserve-merges and --signoff > * --preserve-merges and --rebase-merges > * --preserve-merges and --ignore-whitespace > + * --preserve-merges and --committer-date-is-author-date > * --rebase-merges and --ignore-whitespace > * --rebase-merges and --strategy > * --rebase-merges and --strategy-option > diff --git a/builtin/rebase.c b/builtin/rebase.c > index f8a618d54c..656bc7d7e9 100644 > --- a/builtin/rebase.c > +++ b/builtin/rebase.c > @@ -82,6 +82,7 @@ struct rebase_options { > int ignore_whitespace; > char *gpg_sign_opt; > int autostash; > + int committer_date_is_author_date; > char *cmd; > int allow_empty_message; > int rebase_merges, rebase_cousins; > @@ -114,6 +115,8 @@ static struct replay_opts get_replay_opts(const struct rebase_options *opts) > replay.allow_empty_message = opts->allow_empty_message; > replay.verbose = opts->flags & REBASE_VERBOSE; > replay.reschedule_failed_exec = opts->reschedule_failed_exec; > + replay.committer_date_is_author_date = > + opts->committer_date_is_author_date; > replay.gpg_sign = xstrdup_or_null(opts->gpg_sign_opt); > replay.strategy = opts->strategy; > > @@ -976,6 +979,8 @@ static int run_am(struct rebase_options *opts) > > if (opts->ignore_whitespace) > argv_array_push(&am.args, "--ignore-whitespace"); > + if (opts->committer_date_is_author_date) > + argv_array_push(&opts->git_am_opts, "--committer-date-is-author-date"); > if (opts->action && !strcmp("continue", opts->action)) { > argv_array_push(&am.args, "--resolved"); > argv_array_pushf(&am.args, "--resolvemsg=%s", resolvemsg); > @@ -1419,9 +1424,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) > PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, > OPT_BOOL(0, "signoff", &options.signoff, > N_("add a Signed-off-by: line to each commit")), > - OPT_PASSTHRU_ARGV(0, "committer-date-is-author-date", > - &options.git_am_opts, NULL, > - N_("passed to 'git am'"), PARSE_OPT_NOARG), > + OPT_BOOL(0, "committer-date-is-author-date", > + &options.committer_date_is_author_date, > + N_("make committer date match author date")), > OPT_PASSTHRU_ARGV(0, "ignore-date", &options.git_am_opts, NULL, > N_("passed to 'git am'"), PARSE_OPT_NOARG), > OPT_PASSTHRU_ARGV('C', NULL, &options.git_am_opts, N_("n"), > @@ -1692,10 +1697,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) > state_dir_base, cmd_live_rebase, buf.buf); > } > > + if (options.committer_date_is_author_date) > + options.flags |= REBASE_FORCE; > + > for (i = 0; i < options.git_am_opts.argc; i++) { > const char *option = options.git_am_opts.argv[i], *p; > - if (!strcmp(option, "--committer-date-is-author-date") || > - !strcmp(option, "--ignore-date") || > + if (!strcmp(option, "--ignore-date") || > !strcmp(option, "--whitespace=fix") || > !strcmp(option, "--whitespace=strip")) > options.flags |= REBASE_FORCE; > diff --git a/sequencer.c b/sequencer.c > index 30d77c2682..29b67bc1ae 100644 > --- a/sequencer.c > +++ b/sequencer.c > @@ -147,6 +147,7 @@ static GIT_PATH_FUNC(rebase_path_refs_to_delete, "rebase-merge/refs-to-delete") > * command-line. > */ > static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt") > +static GIT_PATH_FUNC(rebase_path_cdate_is_adate, "rebase-merge/cdate_is_adate") > static GIT_PATH_FUNC(rebase_path_orig_head, "rebase-merge/orig-head") > static GIT_PATH_FUNC(rebase_path_verbose, "rebase-merge/verbose") > static GIT_PATH_FUNC(rebase_path_quiet, "rebase-merge/quiet") > @@ -879,6 +880,17 @@ static char *get_author(const char *message) > return NULL; > } > > +/* Returns a "date" string that needs to be free()'d by the caller */ > +static char *read_author_date_or_null(void) > +{ > + char *date; > + > + if (read_author_script(rebase_path_author_script(), > + NULL, NULL, &date, 0)) > + return NULL; > + return date; > +} > + > /* Read author-script and return an ident line (author <email> timestamp) */ > static const char *read_author_ident(struct strbuf *buf) > { > @@ -964,6 +976,25 @@ static int run_git_commit(struct repository *r, > { > struct child_process cmd = CHILD_PROCESS_INIT; > > + if (opts->committer_date_is_author_date) { > + size_t len; > + int res = -1; > + struct strbuf datebuf = STRBUF_INIT; > + char *date = read_author_date_or_null(); > + > + if (!date) > + return -1; It is good to this this new error checking > + > + strbuf_addf(&datebuf, "@%s", date); > + free(date); > + > + date = strbuf_detach(&datebuf, &len); > + res = setenv("GIT_COMMITTER_DATE", date, 1); > + free(date); This could be simplified slightly by doing res = setenv("GIT_COMMITTER_DATE", datebuf.buf. 1); strbuf_release(&datebuf); > + > + if (res) > + return -1; > + } > if ((flags & CREATE_ROOT_COMMIT) && !(flags & AMEND_MSG)) { > struct strbuf msg = STRBUF_INIT, script = STRBUF_INIT; > const char *author = NULL; > @@ -1400,7 +1431,6 @@ static int try_to_commit(struct repository *r, > > if (parse_head(r, ¤t_head)) > return -1; > - > if (flags & AMEND_MSG) { > const char *exclude_gpgsig[] = { "gpgsig", NULL }; > const char *out_enc = get_commit_output_encoding(); > @@ -1427,6 +1457,21 @@ static int try_to_commit(struct repository *r, > commit_list_insert(current_head, &parents); > } > > + if (opts->committer_date_is_author_date) { > + int len = strlen(author); > + struct ident_split ident; > + struct strbuf date = STRBUF_INIT; > + > + split_ident_line(&ident, author, len); > + > + if (!ident.date_begin) > + return error(_("corrupted author without date information")); I had to read the source of split_ident_line() to check this was safe, I think it is better to use the return value to check for errors - a quick greps shows that this is what all the other callers do. > + > + strbuf_addf(&date, "@%s", ident.date_begin); I still think this will pass any junk after a corrupted timezone, it would be better to do strbuf_addf(&date, "@%.*s %.*s", ident.date_begin, ident.data_end - ident.date_begin, ident.tz_begin, ident.tz_end - ident.tz_begin); > + setenv("GIT_COMMITTER_DATE", date.buf, 1); The code above (in run_git_commit()) checks the return value of setenv() and returns an error if it failed should this be doing the same? Best Wishes Phillip > + strbuf_release(&date); > + } > + > if (write_index_as_tree(&tree, r->index, r->index_file, 0, NULL)) { > res = error(_("git write-tree failed to write a tree")); > goto out; > @@ -2542,6 +2587,11 @@ static int read_populate_opts(struct replay_opts *opts) > opts->signoff = 1; > } > > + if (file_exists(rebase_path_cdate_is_adate())) { > + opts->allow_ff = 0; > + opts->committer_date_is_author_date = 1; > + } > + > if (file_exists(rebase_path_reschedule_failed_exec())) > opts->reschedule_failed_exec = 1; > > @@ -2624,6 +2674,8 @@ int write_basic_state(struct replay_opts *opts, const char *head_name, > write_file(rebase_path_gpg_sign_opt(), "-S%s\n", opts->gpg_sign); > if (opts->signoff) > write_file(rebase_path_signoff(), "--signoff\n"); > + if (opts->committer_date_is_author_date) > + write_file(rebase_path_cdate_is_adate(), "%s", ""); > if (opts->reschedule_failed_exec) > write_file(rebase_path_reschedule_failed_exec(), "%s", ""); > > @@ -3821,7 +3873,8 @@ static int pick_commits(struct repository *r, > setenv(GIT_REFLOG_ACTION, action_name(opts), 0); > if (opts->allow_ff) > assert(!(opts->signoff || opts->no_commit || > - opts->record_origin || opts->edit)); > + opts->record_origin || opts->edit || > + opts->committer_date_is_author_date)); > if (read_and_refresh_cache(r, opts)) > return -1; > > diff --git a/sequencer.h b/sequencer.h > index 6704acbb9c..e3881e9275 100644 > --- a/sequencer.h > +++ b/sequencer.h > @@ -43,6 +43,7 @@ struct replay_opts { > int verbose; > int quiet; > int reschedule_failed_exec; > + int committer_date_is_author_date; > > int mainline; > > diff --git a/t/t3422-rebase-incompatible-options.sh b/t/t3422-rebase-incompatible-options.sh > index 4342f79eea..7402f7e3da 100755 > --- a/t/t3422-rebase-incompatible-options.sh > +++ b/t/t3422-rebase-incompatible-options.sh > @@ -61,7 +61,6 @@ test_rebase_am_only () { > } > > test_rebase_am_only --whitespace=fix > -test_rebase_am_only --committer-date-is-author-date > test_rebase_am_only -C4 > > test_expect_success REBASE_P '--preserve-merges incompatible with --signoff' ' > diff --git a/t/t3433-rebase-options-compatibility.sh b/t/t3433-rebase-options-compatibility.sh > index 2e16e00a9d..b2419a2b75 100755 > --- a/t/t3433-rebase-options-compatibility.sh > +++ b/t/t3433-rebase-options-compatibility.sh > @@ -7,6 +7,9 @@ test_description='tests to ensure compatibility between am and interactive backe > > . ./test-lib.sh > > +GIT_AUTHOR_DATE="1999-04-02T08:03:20+05:30" > +export GIT_AUTHOR_DATE > + > # This is a special case in which both am and interactive backends > # provide the same output. It was done intentionally because > # both the backends fall short of optimal behaviour. > @@ -62,4 +65,20 @@ test_expect_success '--ignore-whitespace works with interactive backend' ' > test_cmp expect file > ' > > +test_expect_success '--committer-date-is-author-date works with am backend' ' > + git commit --amend && > + git rebase --committer-date-is-author-date HEAD^ && > + git show HEAD --pretty="format:%ai" >authortime && > + git show HEAD --pretty="format:%ci" >committertime && > + test_cmp authortime committertime > +' > + > +test_expect_success '--committer-date-is-author-date works with interactive backend' ' > + git commit --amend && > + git rebase -i --committer-date-is-author-date HEAD^ && > + git show HEAD --pretty="format:%ai" >authortime && > + git show HEAD --pretty="format:%ci" >committertime && > + test_cmp authortime committertime > +' > + > test_done >
diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index 873eb5768c..e7c0eac18c 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -386,9 +386,13 @@ unchanged for the sake of a three-way merge. See also INCOMPATIBLE OPTIONS below. --committer-date-is-author-date:: + Instead of recording the time the rebased commits are + created as the committer date, reuse the author date + as the committer date. This implies --force-rebase. + --ignore-date:: - These flags are passed to 'git am' to easily change the dates - of the rebased commits (see linkgit:git-am[1]). + This flag is passed to 'git am' to change the author date + of each rebased commit (see linkgit:git-am[1]). + See also INCOMPATIBLE OPTIONS below. @@ -525,7 +529,6 @@ INCOMPATIBLE OPTIONS The following options: - * --committer-date-is-author-date * --ignore-date * --whitespace * -C @@ -551,6 +554,7 @@ In addition, the following pairs of options are incompatible: * --preserve-merges and --signoff * --preserve-merges and --rebase-merges * --preserve-merges and --ignore-whitespace + * --preserve-merges and --committer-date-is-author-date * --rebase-merges and --ignore-whitespace * --rebase-merges and --strategy * --rebase-merges and --strategy-option diff --git a/builtin/rebase.c b/builtin/rebase.c index f8a618d54c..656bc7d7e9 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -82,6 +82,7 @@ struct rebase_options { int ignore_whitespace; char *gpg_sign_opt; int autostash; + int committer_date_is_author_date; char *cmd; int allow_empty_message; int rebase_merges, rebase_cousins; @@ -114,6 +115,8 @@ static struct replay_opts get_replay_opts(const struct rebase_options *opts) replay.allow_empty_message = opts->allow_empty_message; replay.verbose = opts->flags & REBASE_VERBOSE; replay.reschedule_failed_exec = opts->reschedule_failed_exec; + replay.committer_date_is_author_date = + opts->committer_date_is_author_date; replay.gpg_sign = xstrdup_or_null(opts->gpg_sign_opt); replay.strategy = opts->strategy; @@ -976,6 +979,8 @@ static int run_am(struct rebase_options *opts) if (opts->ignore_whitespace) argv_array_push(&am.args, "--ignore-whitespace"); + if (opts->committer_date_is_author_date) + argv_array_push(&opts->git_am_opts, "--committer-date-is-author-date"); if (opts->action && !strcmp("continue", opts->action)) { argv_array_push(&am.args, "--resolved"); argv_array_pushf(&am.args, "--resolvemsg=%s", resolvemsg); @@ -1419,9 +1424,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, OPT_BOOL(0, "signoff", &options.signoff, N_("add a Signed-off-by: line to each commit")), - OPT_PASSTHRU_ARGV(0, "committer-date-is-author-date", - &options.git_am_opts, NULL, - N_("passed to 'git am'"), PARSE_OPT_NOARG), + OPT_BOOL(0, "committer-date-is-author-date", + &options.committer_date_is_author_date, + N_("make committer date match author date")), OPT_PASSTHRU_ARGV(0, "ignore-date", &options.git_am_opts, NULL, N_("passed to 'git am'"), PARSE_OPT_NOARG), OPT_PASSTHRU_ARGV('C', NULL, &options.git_am_opts, N_("n"), @@ -1692,10 +1697,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) state_dir_base, cmd_live_rebase, buf.buf); } + if (options.committer_date_is_author_date) + options.flags |= REBASE_FORCE; + for (i = 0; i < options.git_am_opts.argc; i++) { const char *option = options.git_am_opts.argv[i], *p; - if (!strcmp(option, "--committer-date-is-author-date") || - !strcmp(option, "--ignore-date") || + if (!strcmp(option, "--ignore-date") || !strcmp(option, "--whitespace=fix") || !strcmp(option, "--whitespace=strip")) options.flags |= REBASE_FORCE; diff --git a/sequencer.c b/sequencer.c index 30d77c2682..29b67bc1ae 100644 --- a/sequencer.c +++ b/sequencer.c @@ -147,6 +147,7 @@ static GIT_PATH_FUNC(rebase_path_refs_to_delete, "rebase-merge/refs-to-delete") * command-line. */ static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt") +static GIT_PATH_FUNC(rebase_path_cdate_is_adate, "rebase-merge/cdate_is_adate") static GIT_PATH_FUNC(rebase_path_orig_head, "rebase-merge/orig-head") static GIT_PATH_FUNC(rebase_path_verbose, "rebase-merge/verbose") static GIT_PATH_FUNC(rebase_path_quiet, "rebase-merge/quiet") @@ -879,6 +880,17 @@ static char *get_author(const char *message) return NULL; } +/* Returns a "date" string that needs to be free()'d by the caller */ +static char *read_author_date_or_null(void) +{ + char *date; + + if (read_author_script(rebase_path_author_script(), + NULL, NULL, &date, 0)) + return NULL; + return date; +} + /* Read author-script and return an ident line (author <email> timestamp) */ static const char *read_author_ident(struct strbuf *buf) { @@ -964,6 +976,25 @@ static int run_git_commit(struct repository *r, { struct child_process cmd = CHILD_PROCESS_INIT; + if (opts->committer_date_is_author_date) { + size_t len; + int res = -1; + struct strbuf datebuf = STRBUF_INIT; + char *date = read_author_date_or_null(); + + if (!date) + return -1; + + strbuf_addf(&datebuf, "@%s", date); + free(date); + + date = strbuf_detach(&datebuf, &len); + res = setenv("GIT_COMMITTER_DATE", date, 1); + free(date); + + if (res) + return -1; + } if ((flags & CREATE_ROOT_COMMIT) && !(flags & AMEND_MSG)) { struct strbuf msg = STRBUF_INIT, script = STRBUF_INIT; const char *author = NULL; @@ -1400,7 +1431,6 @@ static int try_to_commit(struct repository *r, if (parse_head(r, ¤t_head)) return -1; - if (flags & AMEND_MSG) { const char *exclude_gpgsig[] = { "gpgsig", NULL }; const char *out_enc = get_commit_output_encoding(); @@ -1427,6 +1457,21 @@ static int try_to_commit(struct repository *r, commit_list_insert(current_head, &parents); } + if (opts->committer_date_is_author_date) { + int len = strlen(author); + struct ident_split ident; + struct strbuf date = STRBUF_INIT; + + split_ident_line(&ident, author, len); + + if (!ident.date_begin) + return error(_("corrupted author without date information")); + + strbuf_addf(&date, "@%s", ident.date_begin); + setenv("GIT_COMMITTER_DATE", date.buf, 1); + strbuf_release(&date); + } + if (write_index_as_tree(&tree, r->index, r->index_file, 0, NULL)) { res = error(_("git write-tree failed to write a tree")); goto out; @@ -2542,6 +2587,11 @@ static int read_populate_opts(struct replay_opts *opts) opts->signoff = 1; } + if (file_exists(rebase_path_cdate_is_adate())) { + opts->allow_ff = 0; + opts->committer_date_is_author_date = 1; + } + if (file_exists(rebase_path_reschedule_failed_exec())) opts->reschedule_failed_exec = 1; @@ -2624,6 +2674,8 @@ int write_basic_state(struct replay_opts *opts, const char *head_name, write_file(rebase_path_gpg_sign_opt(), "-S%s\n", opts->gpg_sign); if (opts->signoff) write_file(rebase_path_signoff(), "--signoff\n"); + if (opts->committer_date_is_author_date) + write_file(rebase_path_cdate_is_adate(), "%s", ""); if (opts->reschedule_failed_exec) write_file(rebase_path_reschedule_failed_exec(), "%s", ""); @@ -3821,7 +3873,8 @@ static int pick_commits(struct repository *r, setenv(GIT_REFLOG_ACTION, action_name(opts), 0); if (opts->allow_ff) assert(!(opts->signoff || opts->no_commit || - opts->record_origin || opts->edit)); + opts->record_origin || opts->edit || + opts->committer_date_is_author_date)); if (read_and_refresh_cache(r, opts)) return -1; diff --git a/sequencer.h b/sequencer.h index 6704acbb9c..e3881e9275 100644 --- a/sequencer.h +++ b/sequencer.h @@ -43,6 +43,7 @@ struct replay_opts { int verbose; int quiet; int reschedule_failed_exec; + int committer_date_is_author_date; int mainline; diff --git a/t/t3422-rebase-incompatible-options.sh b/t/t3422-rebase-incompatible-options.sh index 4342f79eea..7402f7e3da 100755 --- a/t/t3422-rebase-incompatible-options.sh +++ b/t/t3422-rebase-incompatible-options.sh @@ -61,7 +61,6 @@ test_rebase_am_only () { } test_rebase_am_only --whitespace=fix -test_rebase_am_only --committer-date-is-author-date test_rebase_am_only -C4 test_expect_success REBASE_P '--preserve-merges incompatible with --signoff' ' diff --git a/t/t3433-rebase-options-compatibility.sh b/t/t3433-rebase-options-compatibility.sh index 2e16e00a9d..b2419a2b75 100755 --- a/t/t3433-rebase-options-compatibility.sh +++ b/t/t3433-rebase-options-compatibility.sh @@ -7,6 +7,9 @@ test_description='tests to ensure compatibility between am and interactive backe . ./test-lib.sh +GIT_AUTHOR_DATE="1999-04-02T08:03:20+05:30" +export GIT_AUTHOR_DATE + # This is a special case in which both am and interactive backends # provide the same output. It was done intentionally because # both the backends fall short of optimal behaviour. @@ -62,4 +65,20 @@ test_expect_success '--ignore-whitespace works with interactive backend' ' test_cmp expect file ' +test_expect_success '--committer-date-is-author-date works with am backend' ' + git commit --amend && + git rebase --committer-date-is-author-date HEAD^ && + git show HEAD --pretty="format:%ai" >authortime && + git show HEAD --pretty="format:%ci" >committertime && + test_cmp authortime committertime +' + +test_expect_success '--committer-date-is-author-date works with interactive backend' ' + git commit --amend && + git rebase -i --committer-date-is-author-date HEAD^ && + git show HEAD --pretty="format:%ai" >authortime && + git show HEAD --pretty="format:%ci" >committertime && + test_cmp authortime committertime +' + test_done
rebase am already has this flag to "lie" about the committer date by changing it to the author date. Let's add the same for interactive machinery. Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com> --- Documentation/git-rebase.txt | 10 +++-- builtin/rebase.c | 17 +++++--- sequencer.c | 57 ++++++++++++++++++++++++- sequencer.h | 1 + t/t3422-rebase-incompatible-options.sh | 1 - t/t3433-rebase-options-compatibility.sh | 19 +++++++++ 6 files changed, 94 insertions(+), 11 deletions(-)