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-rw-r--r--Documentation/git-commit.txt6
-rw-r--r--builtin-commit.c28
2 files changed, 32 insertions, 2 deletions
diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index 0e25bb862..eb05b0f49 100644
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -75,8 +75,10 @@ OPTIONS
read the message from the standard input.
--author=<author>::
- Override the author name used in the commit. Use
- `A U Thor <author@example.com>` format.
+ Override the author name used in the commit. You can use the
+ standard `A U Thor <author@example.com>` format. Otherwise,
+ an existing commit that matches the given string and its author
+ name is used.
-m <msg>::
--message=<msg>::
diff --git a/builtin-commit.c b/builtin-commit.c
index b75d5e931..8165bb3d3 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -710,6 +710,31 @@ static int message_is_empty(struct strbuf *sb, int start)
return 1;
}
+static const char *find_author_by_nickname(const char *name)
+{
+ struct rev_info revs;
+ struct commit *commit;
+ struct strbuf buf = STRBUF_INIT;
+ const char *av[20];
+ int ac = 0;
+
+ init_revisions(&revs, NULL);
+ strbuf_addf(&buf, "--author=%s", name);
+ av[++ac] = "--all";
+ av[++ac] = "-i";
+ av[++ac] = buf.buf;
+ av[++ac] = NULL;
+ setup_revisions(ac, av, &revs, NULL);
+ prepare_revision_walk(&revs);
+ commit = get_revision(&revs);
+ if (commit) {
+ strbuf_release(&buf);
+ format_commit_message(commit, "%an <%ae>", &buf, DATE_NORMAL);
+ return strbuf_detach(&buf, NULL);
+ }
+ die("No existing author found with '%s'", name);
+}
+
static int parse_and_validate_options(int argc, const char *argv[],
const char * const usage[],
const char *prefix)
@@ -720,6 +745,9 @@ static int parse_and_validate_options(int argc, const char *argv[],
logfile = parse_options_fix_filename(prefix, logfile);
template_file = parse_options_fix_filename(prefix, template_file);
+ if (force_author && !strchr(force_author, '>'))
+ force_author = find_author_by_nickname(force_author);
+
if (logfile || message.len || use_message)
use_editor = 0;
if (edit_flag)