pretty_print_commit: add different formats

You can ask to print out "raw" format (full headers, full body),
"medium" format (author and date, full body) or "short" format
(author only, condensed body).

Use "git-rev-list --pretty=short HEAD | less -S" for an example.

1 files changed, 20 insertions, 10 deletions

diff --git a/rev-list.c b/rev-list.c
index cbfc5c439..2b098c1e8 100644
--- a/rev-list.c
+++ b/rev-list.c
@@ -15,12 +15,12 @@ static const char rev_list_usage[] =
 
 static int verbose_header = 0;
 static int show_parents = 0;
-static int pretty_print = 0;
 static int hdr_termination = 0;
 static const char *prefix = "";
 static unsigned long max_age = -1;
 static unsigned long min_age = -1;
 static int max_count = -1;
+static enum cmit_fmt commit_format = CMIT_FMT_RAW;
 
 static void show_commit(struct commit *commit)
 {
@@ -34,13 +34,9 @@ static void show_commit(struct commit *commit)
 	}
 	putchar('\n');
 	if (verbose_header) {
-		const char *buf = commit->buffer;
-		if (pretty_print) {
-			static char pretty_header[16384];
-			pretty_print_commit(commit->buffer, ~0, pretty_header, sizeof(pretty_header));
-			buf = pretty_header;
-		}
-		printf("%s%c", buf, hdr_termination);
+		static char pretty_header[16384];
+		pretty_print_commit(commit_format, commit->buffer, ~0, pretty_header, sizeof(pretty_header));
+		printf("%s%c", pretty_header, hdr_termination);
 	}
 }
 
@@ -103,6 +99,20 @@ struct commit_list *limit_list(struct commit_list *list)
 	return newlist;
 }
 
+static enum cmit_fmt get_commit_format(const char *arg)
+{
+	if (!*arg)
+		return CMIT_FMT_DEFAULT;
+	if (!strcmp(arg, "=raw"))
+		return CMIT_FMT_RAW;
+	if (!strcmp(arg, "=medium"))
+		return CMIT_FMT_MEDIUM;
+	if (!strcmp(arg, "=short"))
+		return CMIT_FMT_SHORT;
+	usage(rev_list_usage);	
+}			
+
+
 int main(int argc, char **argv)
 {
 	struct commit_list *list = NULL;
@@ -130,9 +140,9 @@ int main(int argc, char **argv)
 			verbose_header = 1;
 			continue;
 		}
-		if (!strcmp(arg, "--pretty")) {
+		if (!strncmp(arg, "--pretty", 8)) {
+			commit_format = get_commit_format(arg+8);
 			verbose_header = 1;
-			pretty_print = 1;
 			hdr_termination = '\n';
 			prefix = "commit ";
 			continue;