зеркало из https://github.com/microsoft/git.git
range-diff: optionally accept pathspecs
The `git range-diff` command can be quite expensive, which is not a surprise given that the underlying algorithm to match up pairs of commits between the provided two commit ranges has a cubic runtime. Therefore it makes sense to restrict the commit ranges as much as possible, to reduce the amount of input to that O(N^3) algorithm. In chatty repositories with wide trees, this is not necessarily possible merely by choosing commit ranges wisely. Let's give users another option to restrict the commit ranges: by providing a pathspec. That helps in repositories with wide trees because it is likely that the user has a good idea which subset of the tree they are actually interested in. Example: git range-diff upstream/main upstream/seen HEAD -- range-diff.c This shows commits that are either in the local branch or in `seen`, but not in `main`, skipping all commits that do not touch `range-diff.c`. Note: Since we piggy-back the pathspecs onto the `other_arg` mechanism that was introduced to be able to pass through the `--notes` option to the revision machinery, we must now ensure that the `other_arg` array is appended at the end (the revision range must come before the pathspecs, if any). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Родитель
0087d7dfbe
Коммит
b75747829f
|
@ -12,6 +12,7 @@ SYNOPSIS
|
|||
[--no-dual-color] [--creation-factor=<factor>]
|
||||
[--left-only | --right-only]
|
||||
( <range1> <range2> | <rev1>...<rev2> | <base> <rev1> <rev2> )
|
||||
[[--] <path>...]
|
||||
|
||||
DESCRIPTION
|
||||
-----------
|
||||
|
@ -19,6 +20,9 @@ DESCRIPTION
|
|||
This command shows the differences between two versions of a patch
|
||||
series, or more generally, two commit ranges (ignoring merge commits).
|
||||
|
||||
In the presence of `<path>` arguments, these commit ranges are limited
|
||||
accordingly.
|
||||
|
||||
To that end, it first finds pairs of commits from both commit ranges
|
||||
that correspond with each other. Two commits are said to correspond when
|
||||
the diff between their patches (i.e. the author information, the commit
|
||||
|
|
|
@ -38,9 +38,10 @@ int cmd_range_diff(int argc, const char **argv, const char *prefix)
|
|||
OPT_END()
|
||||
};
|
||||
struct option *options;
|
||||
int res = 0;
|
||||
int i, dash_dash = -1, res = 0;
|
||||
struct strbuf range1 = STRBUF_INIT, range2 = STRBUF_INIT;
|
||||
struct object_id oid;
|
||||
const char *three_dots = NULL;
|
||||
|
||||
git_config(git_diff_ui_config, NULL);
|
||||
|
||||
|
@ -48,7 +49,7 @@ int cmd_range_diff(int argc, const char **argv, const char *prefix)
|
|||
|
||||
options = parse_options_concat(range_diff_options, diffopt.parseopts);
|
||||
argc = parse_options(argc, argv, prefix, options,
|
||||
builtin_range_diff_usage, 0);
|
||||
builtin_range_diff_usage, PARSE_OPT_KEEP_DASHDASH);
|
||||
|
||||
diff_setup_done(&diffopt);
|
||||
|
||||
|
@ -56,8 +57,20 @@ int cmd_range_diff(int argc, const char **argv, const char *prefix)
|
|||
if (!simple_color)
|
||||
diffopt.use_color = 1;
|
||||
|
||||
if (argc == 3) {
|
||||
if (get_oid_committish(argv[0], &oid))
|
||||
for (i = 0; i < argc; i++)
|
||||
if (!strcmp(argv[i], "--")) {
|
||||
dash_dash = i;
|
||||
break;
|
||||
}
|
||||
|
||||
if (dash_dash == 3 ||
|
||||
(dash_dash < 0 && argc > 2 &&
|
||||
!get_oid_committish(argv[0], &oid) &&
|
||||
!get_oid_committish(argv[1], &oid) &&
|
||||
!get_oid_committish(argv[2], &oid))) {
|
||||
if (dash_dash < 0)
|
||||
; /* already validated arguments */
|
||||
else if (get_oid_committish(argv[0], &oid))
|
||||
usage_msg_optf(_("not a revision: '%s'"),
|
||||
builtin_range_diff_usage, options,
|
||||
argv[0]);
|
||||
|
@ -72,8 +85,16 @@ int cmd_range_diff(int argc, const char **argv, const char *prefix)
|
|||
|
||||
strbuf_addf(&range1, "%s..%s", argv[0], argv[1]);
|
||||
strbuf_addf(&range2, "%s..%s", argv[0], argv[2]);
|
||||
} else if (argc == 2) {
|
||||
if (!is_range_diff_range(argv[0]))
|
||||
|
||||
strvec_pushv(&other_arg, argv +
|
||||
(dash_dash < 0 ? 3 : dash_dash));
|
||||
} else if (dash_dash == 2 ||
|
||||
(dash_dash < 0 && argc > 1 &&
|
||||
is_range_diff_range(argv[0]) &&
|
||||
is_range_diff_range(argv[1]))) {
|
||||
if (dash_dash < 0)
|
||||
; /* already validated arguments */
|
||||
else if (!is_range_diff_range(argv[0]))
|
||||
usage_msg_optf(_("not a commit range: '%s'"),
|
||||
builtin_range_diff_usage, options,
|
||||
argv[0]);
|
||||
|
@ -84,25 +105,40 @@ int cmd_range_diff(int argc, const char **argv, const char *prefix)
|
|||
|
||||
strbuf_addstr(&range1, argv[0]);
|
||||
strbuf_addstr(&range2, argv[1]);
|
||||
} else if (argc == 1) {
|
||||
const char *b = strstr(argv[0], "..."), *a = argv[0];
|
||||
|
||||
strvec_pushv(&other_arg, argv +
|
||||
(dash_dash < 0 ? 2 : dash_dash));
|
||||
} else if (dash_dash == 1 ||
|
||||
(dash_dash < 0 && argc > 0 &&
|
||||
(three_dots = strstr(argv[0], "...")))) {
|
||||
const char *a, *b;
|
||||
int a_len;
|
||||
|
||||
if (!b)
|
||||
if (dash_dash < 0)
|
||||
; /* already validated arguments */
|
||||
else if (!(three_dots = strstr(argv[0], "...")))
|
||||
usage_msg_optf(_("not a symmetric range: '%s'"),
|
||||
builtin_range_diff_usage, options,
|
||||
argv[0]);
|
||||
builtin_range_diff_usage, options,
|
||||
argv[0]);
|
||||
|
||||
a_len = (int)(b - a);
|
||||
if (!a_len) {
|
||||
if (three_dots == argv[0]) {
|
||||
a = "HEAD";
|
||||
a_len = strlen(a);
|
||||
} else {
|
||||
a = argv[0];
|
||||
a_len = (int)(three_dots - a);
|
||||
}
|
||||
b += 3;
|
||||
if (!*b)
|
||||
|
||||
if (three_dots[3])
|
||||
b = three_dots + 3;
|
||||
else
|
||||
b = "HEAD";
|
||||
|
||||
strbuf_addf(&range1, "%s..%.*s", b, a_len, a);
|
||||
strbuf_addf(&range2, "%.*s..%s", a_len, a, b);
|
||||
|
||||
strvec_pushv(&other_arg, argv +
|
||||
(dash_dash < 0 ? 1 : dash_dash));
|
||||
} else
|
||||
usage_msg_opt(_("need two commit ranges"),
|
||||
builtin_range_diff_usage, options);
|
||||
|
|
|
@ -57,9 +57,9 @@ static int read_patches(const char *range, struct string_list *list,
|
|||
"--pretty=medium",
|
||||
"--notes",
|
||||
NULL);
|
||||
strvec_push(&cp.args, range);
|
||||
if (other_arg)
|
||||
strvec_pushv(&cp.args, other_arg->v);
|
||||
strvec_push(&cp.args, range);
|
||||
cp.out = -1;
|
||||
cp.no_stdin = 1;
|
||||
cp.git_cmd = 1;
|
||||
|
|
|
@ -162,7 +162,7 @@ test_expect_success 'A^! and A^-<n> (unmodified)' '
|
|||
'
|
||||
|
||||
test_expect_success 'A^{/..} is not mistaken for a range' '
|
||||
test_must_fail git range-diff topic^.. topic^{/..} 2>error &&
|
||||
test_must_fail git range-diff topic^.. topic^{/..} -- 2>error &&
|
||||
test_i18ngrep "not a commit range" error
|
||||
'
|
||||
|
||||
|
@ -772,6 +772,17 @@ test_expect_success '--left-only/--right-only' '
|
|||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'ranges with pathspecs' '
|
||||
git range-diff topic...mode-only-change -- other-file >actual &&
|
||||
test_line_count = 2 actual &&
|
||||
topic_oid=$(git rev-parse --short topic) &&
|
||||
mode_change_oid=$(git rev-parse --short mode-only-change^) &&
|
||||
file_change_oid=$(git rev-parse --short mode-only-change) &&
|
||||
grep "$mode_change_oid" actual &&
|
||||
! grep "$file_change_oid" actual &&
|
||||
! grep "$topic_oid" actual
|
||||
'
|
||||
|
||||
test_expect_success 'submodule changes are shown irrespective of diff.submodule' '
|
||||
git init sub-repo &&
|
||||
test_commit -C sub-repo sub-first &&
|
||||
|
|
Загрузка…
Ссылка в новой задаче