diff --git a/diff-tree.c b/diff-tree.c
index 44bc2381c9cd4ab6e10e8bd8b519b564a1b9014b..6593a6920adcdb81fafad94ba2cf96431e6ceec9 100644 (file)
--- a/diff-tree.c
+++ b/diff-tree.c
static int no_commit_id = 0;
static int verbose_header = 0;
static int ignore_merges = 1;
+static int show_empty_combined = 0;
+static int combine_merges = 0;
+static int dense_combined_merges = 0;
static int read_stdin = 0;
static const char *header = NULL;
offset = sprintf(this_header, "%s%s ",
header_prefix,
diff_unique_abbrev(commit_sha1, abbrev));
- offset += sprintf(this_header + offset, "(from %s)\n",
- parent_sha1 ?
- diff_unique_abbrev(parent_sha1, abbrev) : "root");
+ if (commit_sha1 != parent_sha1)
+ offset += sprintf(this_header + offset, "(from %s)\n",
+ parent_sha1
+ ? diff_unique_abbrev(parent_sha1, abbrev)
+ : "root");
+ else
+ offset += sprintf(this_header + offset, "(from parents)\n");
offset += pretty_print_commit(commit_format, commit, len,
this_header + offset,
sizeof(this_header) - offset, abbrev);
}
/* More than one parent? */
- if (ignore_merges && commit->parents && commit->parents->next)
- return 0;
+ if (commit->parents && commit->parents->next) {
+ if (ignore_merges)
+ return 0;
+ else if (combine_merges) {
+ header = generate_header(sha1, sha1, commit);
+ return diff_tree_combined_merge(sha1, header,
+ show_empty_combined,
+ dense_combined_merges);
+ }
+ }
for (parents = commit->parents; parents; parents = parents->next) {
struct commit *parent = parents->item;
}
static const char diff_tree_usage[] =
-"git-diff-tree [--stdin] [-m] [-s] [-v] [--pretty] [-t] [-r] [--root] "
+"git-diff-tree [--stdin] [-m] [-c] [--cc] [-s] [-v] [--pretty] [-t] [-r] [--root] "
"[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]\n"
" -r diff recursively\n"
" --root include the initial commit as diff against /dev/null\n"
ignore_merges = 0;
continue;
}
+ if (!strcmp(arg, "-c")) {
+ combine_merges = 1;
+ continue;
+ }
+ if (!strcmp(arg, "--cc")) {
+ dense_combined_merges = combine_merges = 1;
+ continue;
+ }
if (!strcmp(arg, "-v")) {
verbose_header = 1;
header_prefix = "diff-tree ";
if (diff_options.output_format == DIFF_FORMAT_PATCH)
diff_options.recursive = 1;
+ if (combine_merges) {
+ diff_options.output_format = DIFF_FORMAT_PATCH;
+ show_empty_combined = !ignore_merges;
+ ignore_merges = 0;
+ }
+
diff_tree_setup_paths(get_pathspec(prefix, argv));
diff_setup_done(&diff_options);