combine-diff: lift 32-way limit of combined diff

The "raw" format of combine-diff output is supposed to have as many
colons as there are parents at the beginning, then blob modes for
these parents, and then object names for these parents.

We weren't however prepared to handle a more than 32-way merge and
did not show the correct number of colons in such a case.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/combine-diff.c b/combine-diff.c
index bb1cc96c4e73c90ee327858aa3b36cf2bfe043a4..7f6187f9cd2fc44540cddbcf4bb853231c57397c 100644 (file)
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -982,14 +982,10 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
        free(sline);
 }
 
-#define COLONS "::::::::::::::::::::::::::::::::"
-
 static void show_raw_diff(struct combine_diff_path *p, int num_parent, struct rev_info *rev)
 {
        struct diff_options *opt = &rev->diffopt;
-       int i, offset;
-       const char *prefix;
-       int line_termination, inter_name_termination;
+       int line_termination, inter_name_termination, i;
 
        line_termination = opt->line_termination;
        inter_name_termination = '\t';
@@ -1000,17 +996,14 @@ static void show_raw_diff(struct combine_diff_path *p, int num_parent, struct re
                show_log(rev);
 
        if (opt->output_format & DIFF_FORMAT_RAW) {
-               offset = strlen(COLONS) - num_parent;
-               if (offset < 0)
-                       offset = 0;
-               prefix = COLONS + offset;
+               /* As many colons as there are parents */
+               for (i = 0; i < num_parent; i++)
+                       putchar(':');
 
                /* Show the modes */
-               for (i = 0; i < num_parent; i++) {
-                       printf("%s%06o", prefix, p->parent[i].mode);
-                       prefix = " ";
-               }
-               printf("%s%06o", prefix, p->mode);
+               for (i = 0; i < num_parent; i++)
+                       printf("%06o ", p->parent[i].mode);
+               printf("%06o", p->mode);
 
                /* Show sha1's */
                for (i = 0; i < num_parent; i++)