commit: allow associating auxiliary info on-demand

diff --git a/log-tree.c b/log-tree.c
index 4f86defe324bac8374585df5d9e8ef7b5f9a3524..3d888238711364338a83e7d81bf27f555352bdca 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -299,26 +299,34 @@ static unsigned int digits_in_number(unsigned int number)
        return result;
 }
 
-void get_patch_filename(struct commit *commit, const char *subject, int nr,
-                       const char *suffix, struct strbuf *buf)
+void fmt_output_subject(struct strbuf *filename,
+                       const char *subject,
+                       struct rev_info *info)
 {
-       int suffix_len = strlen(suffix) + 1;
-       int start_len = buf->len;
-
-       strbuf_addf(buf, commit || subject ? "%04d-" : "%d", nr);
-       if (commit || subject) {
-               int max_len = start_len + FORMAT_PATCH_NAME_MAX - suffix_len;
-               struct pretty_print_context ctx = {0};
-
-               if (subject)
-                       strbuf_addstr(buf, subject);
-               else if (commit)
-                       format_commit_message(commit, "%f", buf, &ctx);
-
-               if (max_len < buf->len)
-                       strbuf_setlen(buf, max_len);
-               strbuf_addstr(buf, suffix);
-       }
+       const char *suffix = info->patch_suffix;
+       int nr = info->nr;
+       int start_len = filename->len;
+       int max_len = start_len + FORMAT_PATCH_NAME_MAX - (strlen(suffix) + 1);
+
+       if (0 < info->reroll_count)
+               strbuf_addf(filename, "v%d-", info->reroll_count);
+       strbuf_addf(filename, "%04d-%s", nr, subject);
+
+       if (max_len < filename->len)
+               strbuf_setlen(filename, max_len);
+       strbuf_addstr(filename, suffix);
+}
+
+void fmt_output_commit(struct strbuf *filename,
+                      struct commit *commit,
+                      struct rev_info *info)
+{
+       struct pretty_print_context ctx = {0};
+       struct strbuf subject = STRBUF_INIT;
+
+       format_commit_message(commit, "%f", &subject, &ctx);
+       fmt_output_subject(filename, subject.buf, info);
+       strbuf_release(&subject);
 }
 
 void log_write_email_headers(struct rev_info *opt, struct commit *commit,
@@ -387,8 +395,10 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
                         mime_boundary_leader, opt->mime_boundary);
                extra_headers = subject_buffer;
 
-               get_patch_filename(opt->numbered_files ? NULL : commit, NULL,
-                                  opt->nr, opt->patch_suffix, &filename);
+               if (opt->numbered_files)
+                       strbuf_addf(&filename, "%d", opt->nr);
+               else
+                       fmt_output_commit(&filename, commit, opt);
                snprintf(buffer, sizeof(buffer) - 1,
                         "\n--%s%s\n"
                         "Content-Type: text/x-patch;"
@@ -434,7 +444,7 @@ static void show_signature(struct rev_info *opt, struct commit *commit)
 
        status = verify_signed_buffer(payload.buf, payload.len,
                                      signature.buf, signature.len,
-                                     &gpg_output);
+                                     &gpg_output, NULL);
        if (status && !gpg_output.len)
                strbuf_addstr(&gpg_output, "No signature\n");
 
@@ -498,20 +508,17 @@ static void show_one_mergetag(struct rev_info *opt,
        gpg_message_offset = verify_message.len;
 
        payload_size = parse_signature(extra->value, extra->len);
-       if ((extra->len <= payload_size) ||
-           (verify_signed_buffer(extra->value, payload_size,
-                                 extra->value + payload_size,
-                                 extra->len - payload_size,
-                                 &verify_message) &&
-            verify_message.len <= gpg_message_offset)) {
-               strbuf_addstr(&verify_message, "No signature\n");
-               status = -1;
-       }
-       else if (strstr(verify_message.buf + gpg_message_offset,
-                       ": Good signature from "))
-               status = 0;
-       else
-               status = -1;
+       status = -1;
+       if (extra->len > payload_size)
+               if (verify_signed_buffer(extra->value, payload_size,
+                                        extra->value + payload_size,
+                                        extra->len - payload_size,
+                                        &verify_message, NULL)) {
+                       if (verify_message.len <= gpg_message_offset)
+                               strbuf_addstr(&verify_message, "No signature\n");
+                       else
+                               status = 0;
+               }
 
        show_sig_lines(opt, status, verify_message.buf);
        strbuf_release(&verify_message);
@@ -671,6 +678,8 @@ void show_log(struct rev_info *opt)
        ctx.preserve_subject = opt->preserve_subject;
        ctx.reflog_info = opt->reflog_info;
        ctx.fmt = opt->commit_format;
+       ctx.mailmap = opt->mailmap;
+       ctx.color = opt->diffopt.use_color;
        pretty_print_commit(&ctx, commit, &msgbuf);
 
        if (opt->add_signoff)