diff options
author | Taylor Blau <me@ttaylorr.com> | 2022-10-24 21:55:39 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2022-10-25 00:48:05 +0300 |
commit | 3dc95e09e1355ebde472bd5be37aa7b29ef774d3 (patch) | |
tree | 3f9eabadf001c1bf6d1946c6b6df6d48984b8b4b /builtin/shortlog.c | |
parent | b017d3dae9fe5a5b636b8f7a5235cee2b1b90332 (diff) |
shortlog: support arbitrary commit format `--group`s
In addition to generating a shortlog based on committer, author, or the
identity in one or more specified trailers, it can be useful to generate
a shortlog based on an arbitrary commit format.
This can be used, for example, to generate a distribution of commit
activity over time, like so:
$ git shortlog --group='%cd' --date='format:%Y-%m' -s v2.37.0..
117 2022-06
274 2022-07
324 2022-08
263 2022-09
7 2022-10
Arbitrary commit formats can be used. In fact, `git shortlog`'s default
behavior (to count by commit authors) can be emulated as follows:
$ git shortlog --group='%aN <%aE>' ...
and future patches will make the default behavior (as well as
`--committer`, and `--group=trailer:<trailer>`) special cases of the
more flexible `--group` option.
Note also that the SHORTLOG_GROUP_FORMAT enum value is used only to
designate that `--group:<format>` is in use when in stdin mode to
declare that the combination is invalid.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/shortlog.c')
-rw-r--r-- | builtin/shortlog.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/builtin/shortlog.c b/builtin/shortlog.c index d0645769d7..f3b237c5ff 100644 --- a/builtin/shortlog.c +++ b/builtin/shortlog.c @@ -133,6 +133,8 @@ static void read_from_stdin(struct shortlog *log) break; case SHORTLOG_GROUP_TRAILER: die(_("using %s with stdin is not supported"), "--group=trailer"); + case SHORTLOG_GROUP_FORMAT: + die(_("using %s with stdin is not supported"), "--group=format"); default: BUG("unhandled shortlog group"); } @@ -203,6 +205,32 @@ static void insert_records_from_trailers(struct shortlog *log, unuse_commit_buffer(commit, commit_buffer); } +static int shortlog_needs_dedup(const struct shortlog *log) +{ + return HAS_MULTI_BITS(log->groups) || log->format.nr > 1 || log->trailers.nr; +} + +static void insert_records_from_format(struct shortlog *log, + struct strset *dups, + struct commit *commit, + struct pretty_print_context *ctx, + const char *oneline) +{ + struct strbuf buf = STRBUF_INIT; + struct string_list_item *item; + + for_each_string_list_item(item, &log->format) { + strbuf_reset(&buf); + + format_commit_message(commit, item->string, &buf, ctx); + + if (!shortlog_needs_dedup(log) || strset_add(dups, buf.buf)) + insert_one_record(log, buf.buf, oneline); + } + + strbuf_release(&buf); +} + void shortlog_add_commit(struct shortlog *log, struct commit *commit) { struct strbuf ident = STRBUF_INIT; @@ -244,6 +272,7 @@ void shortlog_add_commit(struct shortlog *log, struct commit *commit) insert_one_record(log, ident.buf, oneline_str); } insert_records_from_trailers(log, &dups, commit, &ctx, oneline_str); + insert_records_from_format(log, &dups, commit, &ctx, oneline_str); strset_clear(&dups); strbuf_release(&ident); @@ -315,6 +344,7 @@ static int parse_group_option(const struct option *opt, const char *arg, int uns if (unset) { log->groups = 0; string_list_clear(&log->trailers, 0); + string_list_clear(&log->format, 0); } else if (!strcasecmp(arg, "author")) log->groups |= SHORTLOG_GROUP_AUTHOR; else if (!strcasecmp(arg, "committer")) @@ -322,8 +352,15 @@ static int parse_group_option(const struct option *opt, const char *arg, int uns else if (skip_prefix(arg, "trailer:", &field)) { log->groups |= SHORTLOG_GROUP_TRAILER; string_list_append(&log->trailers, field); - } else + } else if (skip_prefix(arg, "format:", &field)) { + log->groups |= SHORTLOG_GROUP_FORMAT; + string_list_append(&log->format, field); + } else if (strchr(arg, '%')) { + log->groups |= SHORTLOG_GROUP_FORMAT; + string_list_append(&log->format, arg); + } else { return error(_("unknown group type: %s"), arg); + } return 0; } @@ -341,6 +378,7 @@ void shortlog_init(struct shortlog *log) log->in2 = DEFAULT_INDENT2; log->trailers.strdup_strings = 1; log->trailers.cmp = strcasecmp; + log->format.strdup_strings = 1; } int cmd_shortlog(int argc, const char **argv, const char *prefix) @@ -481,4 +519,5 @@ void shortlog_output(struct shortlog *log) log->list.strdup_strings = 1; string_list_clear(&log->list, 1); clear_mailmap(&log->mailmap); + string_list_clear(&log->format, 0); } |