builtin/reset: add --recurse-submodules switch

git-reset is yet another working tree manipulator, which should be taught about submodules. When a user uses git-reset and requests to recurse into submodules, this will reset the submodules to the object name as recorded in the superproject, detaching the HEADs. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Stefan Beller committed Apr 21, 2017 at 10:39 UTC 35b96d1de8e795aeac8ec281e88e59f2778335e7
2 files changed +38
builtin/reset.c
+30
@@ -21,6 +21,27 @@
21 #include "parse-options.h"
22 #include "unpack-trees.h"
23 #include "cache-tree.h"
24 +#include "submodule.h"
25 +#include "submodule-config.h"
26 +
27 +static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
28 +
29 +static int option_parse_recurse_submodules(const struct option *opt,
30 + const char *arg, int unset)
31 +{
32 + if (unset) {
33 + recurse_submodules = RECURSE_SUBMODULES_OFF;
34 + return 0;
35 + }
36 + if (arg)
37 + recurse_submodules =
38 + parse_update_recurse_submodules_arg(opt->long_name,
39 + arg);
40 + else
41 + recurse_submodules = RECURSE_SUBMODULES_ON;
42 +
43 + return 0;
44 +}
45
46 static const char * const git_reset_usage[] = {
47 N_("git reset [--mixed | --soft | --hard | --merge | --keep] [-q] [<commit>]"),
@@ -283,6 +304,9 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
304 N_("reset HEAD, index and working tree"), MERGE),
305 OPT_SET_INT(0, "keep", &reset_type,
306 N_("reset HEAD but keep local changes"), KEEP),
307 + { OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules,
308 + "reset", "control recursive updating of submodules",
309 + PARSE_OPT_OPTARG, option_parse_recurse_submodules },
310 OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")),
311 OPT_BOOL('N', "intent-to-add", &intent_to_add,
312 N_("record only the fact that removed paths will be added later")),
@@ -295,6 +319,12 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
319 PARSE_OPT_KEEP_DASHDASH);
320 parse_args(&pathspec, argv, prefix, patch_mode, &rev);
321
322 + if (recurse_submodules != RECURSE_SUBMODULES_DEFAULT) {
323 + gitmodules_config();
324 + git_config(submodule_config, NULL);
325 + set_config_update_recurse_submodules(RECURSE_SUBMODULES_ON);
326 + }
327 +
328 unborn = !strcmp(rev, "HEAD") && get_sha1("HEAD", oid.hash);
329 if (unborn) {
330 /* reset on unborn branch: treat as reset to empty tree */
t/t7112-reset-submodule.sh
+8
@@ -5,6 +5,14 @@ test_description='reset can handle submodules'
5 . ./test-lib.sh
6 . "$TEST_DIRECTORY"/lib-submodule-update.sh
7
8 +KNOWN_FAILURE_SUBMODULE_RECURSIVE_NESTED=1
9 +KNOWN_FAILURE_DIRECTORY_SUBMODULE_CONFLICTS=1
10 +KNOWN_FAILURE_SUBMODULE_OVERWRITE_IGNORED_UNTRACKED=1
11 +
12 +test_submodule_switch_recursing "git reset --recurse-submodules --keep"
13 +
14 +test_submodule_forced_switch_recursing "git reset --hard --recurse-submodules"
15 +
16 test_submodule_switch "git reset --keep"
17
18 test_submodule_switch "git reset --merge"