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| author | Junio C Hamano <junkio@cox.net> | 2006-02-06 12:30:00 -0800 |
|---|---|---|
| committer | Junio C Hamano <junkio@cox.net> | 2006-02-06 12:30:00 -0800 |
| commit | 9843a1f6fdb31eed5db774a6d6f99ab0758642a3 (patch) | |
| tree | 4b1a204eeeef811d46fe313e272775ffa75d6daf /combine-diff.c | |
| parent | 960c7021b3b90f93aa88358435d828e5f4cd1533 (diff) | |
| download | git-9843a1f6fdb31eed5db774a6d6f99ab0758642a3.tar.gz git-9843a1f6fdb31eed5db774a6d6f99ab0758642a3.tar.xz | |
combine-diff: do not send NULL to printf
When we run combined diff from working tree (diff-files --cc),
we sent NULL to printf that is returned by find_unique_abbrev().
Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'combine-diff.c')
| -rw-r--r-- | combine-diff.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/combine-diff.c b/combine-diff.c index 250de1c62..50db39b85 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -623,6 +623,7 @@ int show_combined_diff(struct combine_diff_path *elem, int num_parent, write_to_temp_file(ourtmp, result, size); } else { + /* Used by diff-tree to read from the working tree */ struct stat st; int fd; ourtmp = elem->path; @@ -701,6 +702,11 @@ int show_combined_diff(struct combine_diff_path *elem, int num_parent, show_hunks = make_hunks(sline, cnt, num_parent, dense); if (show_hunks) { + const char *abb; + char null_abb[DEFAULT_ABBREV + 1]; + + memset(null_abb, '0', DEFAULT_ABBREV); + null_abb[DEFAULT_ABBREV] = 0; if (header) { shown_header++; puts(header); @@ -713,13 +719,18 @@ int show_combined_diff(struct combine_diff_path *elem, int num_parent, putchar('\n'); printf("index "); for (i = 0; i < num_parent; i++) { - printf("%s%s", - i ? "," : "", - find_unique_abbrev(elem->parent_sha1[i], - DEFAULT_ABBREV)); + if (memcmp(elem->parent_sha1[i], null_sha1, 20)) + abb = find_unique_abbrev(elem->parent_sha1[i], + DEFAULT_ABBREV); + else + abb = null_abb; + printf("%s%s", i ? "," : "", abb); } - printf("..%s\n", - find_unique_abbrev(elem->sha1, DEFAULT_ABBREV)); + if (memcmp(elem->sha1, null_sha1, 20)) + abb = find_unique_abbrev(elem->sha1, DEFAULT_ABBREV); + else + abb = null_abb; + printf("..%s\n", abb); dump_sline(sline, cnt, num_parent); } if (ourtmp == ourtmp_buf) |