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-rw-r--r--builtin/diff-tree.c35
1 files changed, 32 insertions, 3 deletions
diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index ef996126d7..9fc95e959f 100644
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "cache.h"
#include "config.h"
#include "diff.h"
@@ -82,9 +83,13 @@ static int diff_tree_stdin(char *line)
}
static const char diff_tree_usage[] =
-"git diff-tree [--stdin] [-m] [-c] [--cc] [-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"
+" -c show combined diff for merge commits\n"
+" --cc show combined diff for merge commits removing uninteresting hunks\n"
+" --combined-all-paths\n"
+" show name of file in all parents for combined diffs\n"
" --root include the initial commit as diff against /dev/null\n"
COMMON_DIFF_OPTIONS_HELP;
@@ -104,7 +109,9 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
struct object *tree1, *tree2;
static struct rev_info *opt = &log_tree_opt;
struct setup_revision_opt s_r_opt;
+ struct userformat_want w;
int read_stdin = 0;
+ int merge_base = 0;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage(diff_tree_usage);
@@ -122,6 +129,14 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
precompose_argv(argc, argv);
argc = setup_revisions(argc, argv, opt, &s_r_opt);
+ memset(&w, 0, sizeof(w));
+ userformat_find_requirements(NULL, &w);
+
+ if (!opt->show_notes_given && w.notes)
+ opt->show_notes = 1;
+ if (opt->show_notes)
+ load_display_notes(&opt->notes_opt);
+
while (--argc > 0) {
const char *arg = *++argv;
@@ -129,9 +144,18 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
read_stdin = 1;
continue;
}
+ if (!strcmp(arg, "--merge-base")) {
+ merge_base = 1;
+ continue;
+ }
usage(diff_tree_usage);
}
+ if (read_stdin && merge_base)
+ die(_("--stdin and --merge-base are mutually exclusive"));
+ if (merge_base && opt->pending.nr != 2)
+ die(_("--merge-base only works with two commits"));
+
/*
* NOTE! We expect "a..b" to expand to "^a b" but it is
* perfectly valid for revision range parser to yield "b ^a",
@@ -151,7 +175,12 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
case 2:
tree1 = opt->pending.objects[0].item;
tree2 = opt->pending.objects[1].item;
- if (tree2->flags & UNINTERESTING) {
+ if (merge_base) {
+ struct object_id oid;
+
+ diff_get_merge_base(opt, &oid);
+ tree1 = lookup_object(the_repository, &oid);
+ } else if (tree2->flags & UNINTERESTING) {
SWAP(tree2, tree1);
}
diff_tree_oid(&tree1->oid, &tree2->oid, "", &opt->diffopt);
@@ -165,7 +194,7 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
if (opt->diffopt.detect_rename) {
if (!the_index.cache)
- read_index(&the_index);
+ repo_read_index(the_repository);
opt->diffopt.setup |= DIFF_SETUP_USE_SIZE_CACHE;
}
while (fgets(line, sizeof(line), stdin)) {