submodule sync: skip work for inactive submodules

diff --git a/builtin/shortlog.c b/builtin/shortlog.c
index ba0e1154a9f0b95f60e5bcb6cdb716bf0f6ef366..f78bb4818d7a5254d7c3c2c34d1f370cd3aa9327 100644 (file)
--- a/builtin/shortlog.c
+++ b/builtin/shortlog.c
@@ -117,11 +117,15 @@ static void read_from_stdin(struct shortlog *log)
 {
        struct strbuf author = STRBUF_INIT;
        struct strbuf oneline = STRBUF_INIT;
+       static const char *author_match[2] = { "Author: ", "author " };
+       static const char *committer_match[2] = { "Commit: ", "committer " };
+       const char **match;
 
+       match = log->committer ? committer_match : author_match;
        while (strbuf_getline_lf(&author, stdin) != EOF) {
                const char *v;
-               if (!skip_prefix(author.buf, "Author: ", &v) &&
-                   !skip_prefix(author.buf, "author ", &v))
+               if (!skip_prefix(author.buf, match[0], &v) &&
+                   !skip_prefix(author.buf, match[1], &v))
                        continue;
                while (strbuf_getline_lf(&oneline, stdin) != EOF &&
                       oneline.len)
@@ -140,15 +144,18 @@ void shortlog_add_commit(struct shortlog *log, struct commit *commit)
        struct strbuf author = STRBUF_INIT;
        struct strbuf oneline = STRBUF_INIT;
        struct pretty_print_context ctx = {0};
+       const char *fmt;
 
        ctx.fmt = CMIT_FMT_USERFORMAT;
        ctx.abbrev = log->abbrev;
-       ctx.subject = "";
+       ctx.print_email_subject = 1;
        ctx.after_subject = "";
        ctx.date_mode.type = DATE_NORMAL;
        ctx.output_encoding = get_log_output_encoding();
 
-       format_commit_message(commit, "%an <%ae>", &author, &ctx);
+       fmt = log->committer ? "%cn <%ce>" : "%an <%ae>";
+
+       format_commit_message(commit, fmt, &author, &ctx);
        if (!log->summary) {
                if (log->user_format)
                        pretty_print_commit(&ctx, commit, &oneline);
@@ -238,6 +245,8 @@ int cmd_shortlog(int argc, const char **argv, const char *prefix)
        int nongit = !startup_info->have_repository;
 
        const struct option options[] = {
+               OPT_BOOL('c', "committer", &log.committer,
+                        N_("Group by committer rather than author")),
                OPT_BOOL('n', "numbered", &log.sort_by_number,
                         N_("sort output according to the number of commits per author")),
                OPT_BOOL('s', "summary", &log.summary,