Teach clone --recurse-submodules to optionally take a pathspec argument
which describes which submodules should be recursively initialized and
cloned. If no pathspec is provided, --recurse-submodules will
recursively initialize and clone all submodules by using a default
pathspec of ".". In order to construct more complex pathspecs,
--recurse-submodules can be given multiple times.
This also configures the 'submodule.active' configuration option to be
the given pathspec, such that any future invocation of `git submodule
update` will keep up with the pathspec.
Additionally the switch '--recurse' is removed from the Documentation as
well as marked hidden in the options array, to streamline the options
for submodules. A simple '--recurse' doesn't convey what is being
recursed, e.g. it could mean directories or trees (c.f. ls-tree) In a
lot of other commands we already have '--recurse-submodules' to mean
recursing into submodules, so advertise this spelling here as the
genuine option.
Signed-off-by: Brandon Williams <bmwill@xxxxxxxxxx>
---
Documentation/git-clone.txt | 14 ++++++----
builtin/clone.c | 50 ++++++++++++++++++++++++++++-----
t/t7400-submodule-basic.sh | 68 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 120 insertions(+), 12 deletions(-)
diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index 35cc34b2f..30052cce4 100644
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -14,7 +14,7 @@ SYNOPSIS
[-o <name>] [-b <name>] [-u <upload-pack>] [--reference <repository>]
[--dissociate] [--separate-git-dir <git dir>]
[--depth <depth>] [--[no-]single-branch]
- [--recursive | --recurse-submodules] [--[no-]shallow-submodules]
+ [--recurse-submodules] [--[no-]shallow-submodules]
[--jobs <n>] [--] <repository> [<directory>]
DESCRIPTION
@@ -215,10 +215,14 @@ objects from the source repository into a pack in the cloned repository.
branch when `--single-branch` clone was made, no remote-tracking
branch is created.
---recursive::
---recurse-submodules::
- After the clone is created, initialize all submodules within,
- using their default settings. This is equivalent to running
+--recurse-submodules[=<pathspec]::
+ After the clone is created, initialize and clone submodules
+ within based on the provided pathspec. If no pathspec is
+ provided, all submodules are initialized and cloned.
+ Submodules are initialized and cloned using their default
+ settings. The resulting clone has `submodule.active` set to
+ the provided pathspec, or "." (meaning all submodules) if no
+ pathspec is provided. This is equivalent to running
`git submodule update --init --recursive` immediately after
the clone is finished. This option is ignored if the cloned
repository does not have a worktree/checkout (i.e. if any of
diff --git a/builtin/clone.c b/builtin/clone.c
index 3f63edbbf..a7be61d6b 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -39,7 +39,7 @@ static const char * const builtin_clone_usage[] = {
};
static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1;
-static int option_local = -1, option_no_hardlinks, option_shared, option_recursive;
+static int option_local = -1, option_no_hardlinks, option_shared;
static int option_shallow_submodules;
static int deepen;
static char *option_template, *option_depth, *option_since;
@@ -56,6 +56,21 @@ static struct string_list option_required_reference = STRING_LIST_INIT_NODUP;
static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP;
static int option_dissociate;
static int max_jobs = -1;
+static struct string_list option_recurse_submodules = STRING_LIST_INIT_NODUP;
+
+static int recurse_submodules_cb(const struct option *opt,
+ const char *arg, int unset)
+{
+ if (unset)
+ string_list_clear((struct string_list *)opt->value, 0);
+ else if (arg)
+ string_list_append((struct string_list *)opt->value, arg);
+ else
+ string_list_append((struct string_list *)opt->value,
+ (const char *)opt->defval);
+
+ return 0;
+}
static struct option builtin_clone_options[] = {
OPT__VERBOSITY(&option_verbosity),
@@ -74,10 +89,13 @@ static struct option builtin_clone_options[] = {
N_("don't use local hardlinks, always copy")),
OPT_BOOL('s', "shared", &option_shared,
N_("setup as shared repository")),
- OPT_BOOL(0, "recursive", &option_recursive,
- N_("initialize submodules in the clone")),
- OPT_BOOL(0, "recurse-submodules", &option_recursive,
- N_("initialize submodules in the clone")),
+ { OPTION_CALLBACK, 0, "recursive", &option_recurse_submodules,
+ N_("pathspec"), N_("initialize submodules in the clone"),
+ PARSE_OPT_OPTARG | PARSE_OPT_HIDDEN, recurse_submodules_cb,
+ (intptr_t)"." },
+ { OPTION_CALLBACK, 0, "recurse-submodules", &option_recurse_submodules,
+ N_("pathspec"), N_("initialize submodules in the clone"),
+ PARSE_OPT_OPTARG, recurse_submodules_cb, (intptr_t)"." },
OPT_INTEGER('j', "jobs", &max_jobs,
N_("number of submodules cloned in parallel")),
OPT_STRING(0, "template", &option_template, N_("template-directory"),
@@ -733,7 +751,7 @@ static int checkout(int submodule_progress)
err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1),
sha1_to_hex(sha1), "1", NULL);
- if (!err && option_recursive) {
+ if (!err && (option_recurse_submodules.nr > 0)) {
struct argv_array args = ARGV_ARRAY_INIT;
argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL);
@@ -957,7 +975,25 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
fprintf(stderr, _("Cloning into '%s'...\n"), dir);
}
- if (option_recursive) {
+ if (option_recurse_submodules.nr > 0) {
+ struct string_list_item *item;
+ struct strbuf sb = STRBUF_INIT;
+
+ /* remove duplicates */
+ string_list_sort(&option_recurse_submodules);
+ string_list_remove_duplicates(&option_recurse_submodules, 0);
+
+ /*
+ * NEEDSWORK: In a multi-working-tree world, this needs to be
+ * set in the per-worktree config.
+ */
+ for_each_string_list_item(item, &option_recurse_submodules) {
+ strbuf_addf(&sb, "submodule.active=%s",
+ item->string);
+ string_list_append(&option_config,
+ strbuf_detach(&sb, NULL));
+ }
+
if (option_required_reference.nr &&
option_optional_reference.nr)
die(_("clone --recursive is not compatible with "
diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index fbbe932d1..3af1c00ff 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -1188,4 +1188,72 @@ test_expect_success 'submodule update and setting submodule.<name>.active' '
test_cmp expect actual
'
+test_expect_success 'clone --recurse-submodules with a pathspec works' '
+ test_when_finished "rm -rf multisuper_clone" &&
+ cat >expected <<-\EOF &&
+ sub0 (test2)
+ -sub1
+ -sub2
+ -sub3
+ EOF
+
+ git clone --recurse-submodules="sub0" multisuper multisuper_clone &&
+ git -C multisuper_clone submodule status |cut -c1,43- >actual &&
+ test_cmp actual expected
+'
+
+test_expect_success 'clone with multiple --recurse-submodules options' '
+ test_when_finished "rm -rf multisuper_clone" &&
+ cat >expect <<-\EOF &&
+ -sub0
+ sub1 (test2)
+ -sub2
+ sub3 (test2)
+ EOF
+
+ git clone --recurse-submodules="." \
+ --recurse-submodules=":(exclude)sub0" \
+ --recurse-submodules=":(exclude)sub2" \
+ multisuper multisuper_clone &&
+ git -C multisuper_clone submodule status |cut -c1,43- >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'clone and subsequent updates correctly auto-initialize submodules' '
+ test_when_finished "rm -rf multisuper_clone" &&
+ cat <<-\EOF >expect &&
+ -sub0
+ sub1 (test2)
+ -sub2
+ sub3 (test2)
+ EOF
+
+ cat <<-\EOF >expect2 &&
+ -sub0
+ sub1 (test2)
+ -sub2
+ sub3 (test2)
+ -sub4
+ sub5 (test2)
+ EOF
+
+ git clone --recurse-submodules="." \
+ --recurse-submodules=":(exclude)sub0" \
+ --recurse-submodules=":(exclude)sub2" \
+ --recurse-submodules=":(exclude)sub4" \
+ multisuper multisuper_clone &&
+
+ git -C multisuper_clone submodule status |cut -c1,43- >actual &&
+ test_cmp expect actual &&
+
+ git -C multisuper submodule add ../sub1 sub4 &&
+ git -C multisuper submodule add ../sub1 sub5 &&
+ git -C multisuper commit -m "add more submodules" &&
+ # obtain the new superproject
+ git -C multisuper_clone pull &&
+ git -C multisuper_clone submodule update --init &&
+ git -C multisuper_clone submodule status |cut -c1,43- >actual &&
+ test_cmp expect2 actual
+'
+
test_done
--
2.12.0.367.g23dc2f6d3c-goog