builtin-merge: show user-friendly error messages for fast-forward too.

diff --git a/builtin-shortlog.c b/builtin-shortlog.c
index d03f14fdad3d17dde06734d78ddb4aade6ed4f2b..4d4a3c82d6209ce3ec897dad0c69d58a329b4303 100644 (file)
--- a/builtin-shortlog.c
+++ b/builtin-shortlog.c
@@ -29,6 +29,9 @@ static int compare_by_number(const void *a1, const void *a2)
                return -1;
 }
 
+const char *format_subject(struct strbuf *sb, const char *msg,
+                          const char *line_separator);
+
 static void insert_one_record(struct shortlog *log,
                              const char *author,
                              const char *oneline)
@@ -36,11 +39,12 @@ static void insert_one_record(struct shortlog *log,
        const char *dot3 = log->common_repo_prefix;
        char *buffer, *p;
        struct string_list_item *item;
-       struct string_list *onelines;
        char namebuf[1024];
+       char emailbuf[1024];
        size_t len;
        const char *eol;
        const char *boemail, *eoemail;
+       struct strbuf subject = STRBUF_INIT;
 
        boemail = strchr(author, '<');
        if (!boemail)
@@ -48,7 +52,19 @@ static void insert_one_record(struct shortlog *log,
        eoemail = strchr(boemail, '>');
        if (!eoemail)
                return;
-       if (!map_email(&log->mailmap, boemail+1, namebuf, sizeof(namebuf))) {
+
+       /* copy author name to namebuf, to support matching on both name and email */
+       memcpy(namebuf, author, boemail - author);
+       len = boemail - author;
+       while (len > 0 && isspace(namebuf[len-1]))
+               len--;
+       namebuf[len] = 0;
+
+       /* copy email name to emailbuf, to allow email replacement as well */
+       memcpy(emailbuf, boemail+1, eoemail - boemail);
+       emailbuf[eoemail - boemail - 1] = 0;
+
+       if (!map_user(&log->mailmap, emailbuf, sizeof(emailbuf), namebuf, sizeof(namebuf))) {
                while (author < boemail && isspace(*author))
                        author++;
                for (len = 0;
@@ -64,16 +80,13 @@ static void insert_one_record(struct shortlog *log,
 
        if (log->email) {
                size_t room = sizeof(namebuf) - len - 1;
-               int maillen = eoemail - boemail + 1;
-               snprintf(namebuf + len, room, " %.*s", maillen, boemail);
+               int maillen = strlen(emailbuf);
+               snprintf(namebuf + len, room, " <%.*s>", maillen, emailbuf);
        }
 
-       buffer = xstrdup(namebuf);
-       item = string_list_insert(buffer, &log->list);
+       item = string_list_insert(namebuf, &log->list);
        if (item->util == NULL)
                item->util = xcalloc(1, sizeof(struct string_list));
-       else
-               free(buffer);
 
        /* Skip any leading whitespace, including any blank lines. */
        while (*oneline && isspace(*oneline))
@@ -88,10 +101,8 @@ static void insert_one_record(struct shortlog *log,
        }
        while (*oneline && isspace(*oneline) && *oneline != '\n')
                oneline++;
-       len = eol - oneline;
-       while (len && isspace(oneline[len-1]))
-               len--;
-       buffer = xmemdupz(oneline, len);
+       format_subject(&subject, oneline, " ");
+       buffer = strbuf_detach(&subject, NULL);
 
        if (dot3) {
                int dot3len = strlen(dot3);
@@ -104,16 +115,7 @@ static void insert_one_record(struct shortlog *log,
                }
        }
 
-       onelines = item->util;
-       if (onelines->nr >= onelines->alloc) {
-               onelines->alloc = alloc_nr(onelines->nr);
-               onelines->items = xrealloc(onelines->items,
-                               onelines->alloc
-                               * sizeof(struct string_list_item));
-       }
-
-       onelines->items[onelines->nr].util = NULL;
-       onelines->items[onelines->nr++].string = buffer;
+       string_list_append(buffer, item->util);
 }
 
 static void read_from_stdin(struct shortlog *log)
@@ -229,7 +231,7 @@ void shortlog_init(struct shortlog *log)
 {
        memset(log, 0, sizeof(*log));
 
-       read_mailmap(&log->mailmap, ".mailmap", &log->common_repo_prefix);
+       read_mailmap(&log->mailmap, &log->common_repo_prefix);
 
        log->list.strdup_strings = 1;
        log->wrap = DEFAULT_WRAPLEN;
@@ -258,9 +260,10 @@ int cmd_shortlog(int argc, const char **argv, const char *prefix)
        struct parse_opt_ctx_t ctx;
 
        prefix = setup_git_directory_gently(&nongit);
+       git_config(git_default_config, NULL);
        shortlog_init(&log);
        init_revisions(&rev, prefix);
-       parse_options_start(&ctx, argc, argv, PARSE_OPT_KEEP_DASHDASH |
+       parse_options_start(&ctx, argc, argv, prefix, PARSE_OPT_KEEP_DASHDASH |
                            PARSE_OPT_KEEP_ARGV0);
 
        for (;;) {
@@ -323,13 +326,12 @@ void shortlog_output(struct shortlog *log)
                }
 
                onelines->strdup_strings = 1;
-               string_list_clear(onelines, 1);
+               string_list_clear(onelines, 0);
                free(onelines);
                log->list.items[i].util = NULL;
        }
 
        log->list.strdup_strings = 1;
        string_list_clear(&log->list, 1);
-       log->mailmap.strdup_strings = 1;
-       string_list_clear(&log->mailmap, 1);
+       clear_mailmap(&log->mailmap);
 }