. there are more "src" modes and "src" sha1
. status is concatenated status characters for each parent
. no optional "score" number
-. single path, only for "dst"
+. tab-separated pathname(s) of the file
-Example:
+For `-c` and `--cc`, only the destination or final path is shown even
+if the file was renamed on any side of history. With
+`--combined-all-paths`, the name of the path in each parent is shown
+followed by the name of the path in the merge commit.
+
+Examples for `-c` and `--cc` without `--combined-all-paths`:
+------------------------------------------------
+::100644 100644 100644 fabadb8 cc95eb0 4866510 MM desc.c
+::100755 100755 100755 52b7a2d 6d1ac04 d2ac7d7 RM bar.sh
+::100644 100644 100644 e07d6c5 9042e82 ee91881 RR phooey.c
+------------------------------------------------
+
+Examples when `--combined-all-paths` added to either `-c` or `--cc`:
------------------------------------------------
-::100644 100644 100644 fabadb8 cc95eb0 4866510 MM describe.c
+::100644 100644 100644 fabadb8 cc95eb0 4866510 MM desc.c desc.c desc.c
+::100755 100755 100755 52b7a2d 6d1ac04 d2ac7d7 RM foo.sh bar.sh bar.sh
+::100644 100644 100644 e07d6c5 9042e82 ee91881 RR fooey.c fuey.c phooey.c
------------------------------------------------
Note that 'combined diff' lists only files which were modified from
Similar to two-line header for traditional 'unified' diff
format, `/dev/null` is used to signal created or deleted
files.
++
+However, if the --combined-all-paths option is provided, instead of a
+two-line from-file/to-file you get a N+1 line from-file/to-file header,
+where N is the number of parents in the merge commit
+
+ --- a/file
+ --- a/file
+ --- a/file
+ +++ b/file
++
+This extended format can be useful if rename or copy detection is
+active, to allow you to see the original name of the file in different
+parents.
4. Chunk header format is modified to prevent people from
accidentally feeding it to `patch -p1`. Combined diff format
--------
[verse]
'git diff-tree' [--stdin] [-m] [-s] [-v] [--no-commit-id] [--pretty]
- [-t] [-r] [-c | --cc] [--root] [<common diff options>]
- <tree-ish> [<tree-ish>] [<path>...]
+ [-t] [-r] [-c | --cc] [--combined-all-paths] [--root]
+
[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]
DESCRIPTION
-----------
itself and the commit log message is not shown, just like in any other
"empty diff" case.
+--combined-all-paths::
+ This flag causes combined diffs (used for merge commits) to
+ list the name of the file from all parents. It thus only has
+ effect when -c or --cc are specified, and is likely only
+ useful if filename changes are detected (i.e. when either
+ rename or copy detection have been requested).
+
--always::
Show the commit itself and the commit log message even
if the diff itself is empty.
the parents have only two variants and the merge result picks
one of them without modification.
+--combined-all-paths::
+ This flag causes combined diffs (used for merge commits) to
+ list the name of the file from all parents. It thus only has
+ effect when -c or --cc are specified, and is likely only
+ useful if filename changes are detected (i.e. when either
+ rename or copy detection have been requested).
+
-m::
This flag makes the merge commits show the full diff like
regular commits; for each merge parent, a separate log entry
}
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;
two->path, strlen(two->path), two->mode);
}
-static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr, int n, int num_parent)
+static int filename_changed(char status)
+{
+ return status == 'R' || status == 'C';
+}
+
+static struct combine_diff_path *intersect_paths(
+ struct combine_diff_path *curr,
+ int n,
+ int num_parent,
+ int combined_all_paths)
{
struct diff_queue_struct *q = &diff_queued_diff;
struct combine_diff_path *p, **tail = &curr;
- int i, cmp;
+ int i, j, cmp;
if (!n) {
for (i = 0; i < q->nr; i++) {
oidcpy(&p->parent[n].oid, &q->queue[i]->one->oid);
p->parent[n].mode = q->queue[i]->one->mode;
p->parent[n].status = q->queue[i]->status;
+
+ if (combined_all_paths &&
+ filename_changed(p->parent[n].status)) {
+ strbuf_init(&p->parent[n].path, 0);
+ strbuf_addstr(&p->parent[n].path,
+ q->queue[i]->one->path);
+ }
*tail = p;
tail = &p->next;
}
if (cmp < 0) {
/* p->path not in q->queue[]; drop it */
*tail = p->next;
+ for (j = 0; j < num_parent; j++)
+ if (combined_all_paths &&
+ filename_changed(p->parent[j].status))
+ strbuf_release(&p->parent[j].path);
free(p);
continue;
}
oidcpy(&p->parent[n].oid, &q->queue[i]->one->oid);
p->parent[n].mode = q->queue[i]->one->mode;
p->parent[n].status = q->queue[i]->status;
+ if (combined_all_paths &&
+ filename_changed(p->parent[n].status))
+ strbuf_addstr(&p->parent[n].path,
+ q->queue[i]->one->path);
tail = &p->next;
i++;
if (!show_file_header)
return;
- if (added)
- dump_quoted_path("--- ", "", "/dev/null",
- line_prefix, c_meta, c_reset);
- else
- dump_quoted_path("--- ", a_prefix, elem->path,
- line_prefix, c_meta, c_reset);
+ if (rev->combined_all_paths) {
+ for (i = 0; i < num_parent; i++) {
+ char *path = filename_changed(elem->parent[i].status)
+ ? elem->parent[i].path.buf : elem->path;
+ if (elem->parent[i].status == DIFF_STATUS_ADDED)
+ dump_quoted_path("--- ", "", "/dev/null",
+ line_prefix, c_meta, c_reset);
+ else
+ dump_quoted_path("--- ", a_prefix, path,
+ line_prefix, c_meta, c_reset);
+ }
+ } else {
+ if (added)
+ dump_quoted_path("--- ", "", "/dev/null",
+ line_prefix, c_meta, c_reset);
+ else
+ dump_quoted_path("--- ", a_prefix, elem->path,
+ line_prefix, c_meta, c_reset);
+ }
if (deleted)
dump_quoted_path("+++ ", "", "/dev/null",
line_prefix, c_meta, c_reset);
putchar(inter_name_termination);
}
+ for (i = 0; i < num_parent; i++)
+ if (rev->combined_all_paths) {
+ if (filename_changed(p->parent[i].status))
+ write_name_quoted(p->parent[i].path.buf, stdout,
+ inter_name_termination);
+ else
+ write_name_quoted(p->path, stdout,
+ inter_name_termination);
+ }
write_name_quoted(p->path, stdout, line_termination);
}
/* find set of paths that every parent touches */
static struct combine_diff_path *find_paths_generic(const struct object_id *oid,
- const struct oid_array *parents, struct diff_options *opt)
+ const struct oid_array *parents,
+ struct diff_options *opt,
+ int combined_all_paths)
{
struct combine_diff_path *paths = NULL;
int i, num_parent = parents->nr;
opt->output_format = DIFF_FORMAT_NO_OUTPUT;
diff_tree_oid(&parents->oid[i], oid, "", opt);
diffcore_std(opt);
- paths = intersect_paths(paths, i, num_parent);
+ paths = intersect_paths(paths, i, num_parent,
+ combined_all_paths);
/* if showing diff, show it in requested order */
if (opt->output_format != DIFF_FORMAT_NO_OUTPUT &&
* diff(sha1,parent_i) for all i to do the job, specifically
* for parent0.
*/
- paths = find_paths_generic(oid, parents, &diffopts);
+ paths = find_paths_generic(oid, parents, &diffopts,
+ rev->combined_all_paths);
}
else {
int stat_opt;
while (paths) {
struct combine_diff_path *tmp = paths;
paths = paths->next;
+ for (i = 0; i < num_parent; i++)
+ if (rev->combined_all_paths &&
+ filename_changed(tmp->parent[i].status))
+ strbuf_release(&tmp->parent[i].path);
free(tmp);
}
char status;
unsigned int mode;
struct object_id oid;
+ struct strbuf path;
} parent[FLEX_ARRAY];
};
#define combine_diff_path_size(n, l) \
revs->diff = 1;
revs->dense_combined_merges = 0;
revs->combine_merges = 1;
+ } else if (!strcmp(arg, "--combined-all-paths")) {
+ revs->diff = 1;
+ revs->combined_all_paths = 1;
} else if (!strcmp(arg, "--cc")) {
revs->diff = 1;
revs->dense_combined_merges = 1;
}
if (revs->combine_merges)
revs->ignore_merges = 0;
+ if (revs->combined_all_paths && !revs->combine_merges)
+ die("--combined-all-paths makes no sense without -c or --cc");
+
revs->diffopt.abbrev = revs->abbrev;
if (revs->line_level_traverse) {
verbose_header:1,
ignore_merges:1,
combine_merges:1,
+ combined_all_paths:1,
dense_combined_merges:1,
always_show_header:1;
test_cmp expect actual
'
+test_expect_success 'setup for --combined-all-paths' '
+ git branch side1c &&
+ git branch side2c &&
+ git checkout side1c &&
+ test_seq 1 10 >filename-side1c &&
+ git add filename-side1c &&
+ git commit -m with &&
+ git checkout side2c &&
+ test_seq 1 9 >filename-side2c &&
+ echo ten >>filename-side2c &&
+ git add filename-side2c &&
+ git commit -m iam &&
+ git checkout -b mergery side1c &&
+ git merge --no-commit side2c &&
+ git rm filename-side1c &&
+ echo eleven >>filename-side2c &&
+ git mv filename-side2c filename-merged &&
+ git add filename-merged &&
+ git commit
+'
+
+test_expect_success '--combined-all-paths and --raw' '
+ cat <<-\EOF >expect &&
+ ::100644 100644 100644 f00c965d8307308469e537302baa73048488f162 088bd5d92c2a8e0203ca8e7e4c2a5c692f6ae3f7 333b9c62519f285e1854830ade0fe1ef1d40ee1b RR filename-side1c filename-side2c filename-merged
+ EOF
+ git diff-tree -c -M --raw --combined-all-paths HEAD >actual.tmp &&
+ sed 1d <actual.tmp >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '--combined-all-paths and --cc' '
+ cat <<-\EOF >expect &&
+ --- a/filename-side1c
+ --- a/filename-side2c
+ +++ b/filename-merged
+ EOF
+ git diff-tree --cc -M --combined-all-paths HEAD >actual.tmp &&
+ grep ^[-+][-+][-+] <actual.tmp >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success FUNNYNAMES 'setup for --combined-all-paths with funny names' '
+ git branch side1d &&
+ git branch side2d &&
+ git checkout side1d &&
+ test_seq 1 10 >$(printf "file\twith\ttabs") &&
+ git add file* &&
+ git commit -m with &&
+ git checkout side2d &&
+ test_seq 1 9 >$(printf "i\tam\ttabbed") &&
+ echo ten >>$(printf "i\tam\ttabbed") &&
+ git add *tabbed &&
+ git commit -m iam &&
+ git checkout -b funny-names-mergery side1d &&
+ git merge --no-commit side2d &&
+ git rm *tabs &&
+ echo eleven >>$(printf "i\tam\ttabbed") &&
+ git mv "$(printf "i\tam\ttabbed")" "$(printf "fickle\tnaming")" &&
+ git add fickle* &&
+ git commit
+'
+
+test_expect_success FUNNYNAMES '--combined-all-paths and --raw and funny names' '
+ cat <<-\EOF >expect &&
+ ::100644 100644 100644 f00c965d8307308469e537302baa73048488f162 088bd5d92c2a8e0203ca8e7e4c2a5c692f6ae3f7 333b9c62519f285e1854830ade0fe1ef1d40ee1b RR "file\twith\ttabs" "i\tam\ttabbed" "fickle\tnaming"
+ EOF
+ git diff-tree -c -M --raw --combined-all-paths HEAD >actual.tmp &&
+ sed 1d <actual.tmp >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success FUNNYNAMES '--combined-all-paths and --raw -and -z and funny names' '
+ printf "aaf8087c3cbd4db8e185a2d074cf27c53cfb75d7\0::100644 100644 100644 f00c965d8307308469e537302baa73048488f162 088bd5d92c2a8e0203ca8e7e4c2a5c692f6ae3f7 333b9c62519f285e1854830ade0fe1ef1d40ee1b RR\0file\twith\ttabs\0i\tam\ttabbed\0fickle\tnaming\0" >expect &&
+ git diff-tree -c -M --raw --combined-all-paths -z HEAD >actual &&
+ test_cmp -a expect actual
+'
+
+test_expect_success FUNNYNAMES '--combined-all-paths and --cc and funny names' '
+ cat <<-\EOF >expect &&
+ --- "a/file\twith\ttabs"
+ --- "a/i\tam\ttabbed"
+ +++ "b/fickle\tnaming"
+ EOF
+ git diff-tree --cc -M --combined-all-paths HEAD >actual.tmp &&
+ grep ^[-+][-+][-+] <actual.tmp >actual &&
+ test_cmp expect actual
+'
+
test_done