[PATCH v3 4/5] clone: add a --no-tags-submodules to pass --no-tags to submodules

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From: Brandon Williams <bmwill@xxxxxxxxxx>

Add a --no-tags-submodules which does for --no-tags what the existing
--shallow-submodules does for --depth, i.e. doing:

    git clone --recurse-submodules --no-tags --no-tags-submodules <url>

Will clone the superproject and all submodules with --no-tags
semantics.

This change does not implement a submodule.*.tags config .gitmodules
configuration option corresponding to the existing submodule.*.shallow
facility, which would make --no-tags have full feature parity with
--shallow-submodules.

Signed-off-by: Brandon Williams <bmwill@xxxxxxxxxx>
Code-by: Brandon Williams <bmwill@xxxxxxxxxx>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
Commit-message-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
Git-Completion-Code-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
Docs-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
Tests-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
 Documentation/git-clone.txt            | 11 +++++-
 builtin/clone.c                        |  6 +++
 builtin/submodule--helper.c            | 16 ++++++--
 contrib/completion/git-completion.bash |  1 +
 git-submodule.sh                       |  4 ++
 t/t5616-clone-submodules-tags.sh       | 72 ++++++++++++++++++++++++++++++++++
 6 files changed, 106 insertions(+), 4 deletions(-)
 create mode 100755 t/t5616-clone-submodules-tags.sh

diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index 83c8e9b394..4a0e4aa4f4 100644
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -13,7 +13,8 @@ SYNOPSIS
 	  [-l] [-s] [--no-hardlinks] [-q] [-n] [--bare] [--mirror]
 	  [-o <name>] [-b <name>] [-u <upload-pack>] [--reference <repository>]
 	  [--dissociate] [--separate-git-dir <git dir>]
-	  [--depth <depth>] [--[no-]single-branch] [--no-tags]
+	  [--depth <depth>] [--[no-]single-branch]
+	  [--no-tags] [--no-tags-submodules]
 	  [--recurse-submodules] [--[no-]shallow-submodules]
 	  [--jobs <n>] [--] <repository> [<directory>]
 
@@ -226,6 +227,10 @@ Can be used in conjunction with `--single-branch` to clone and
 maintain a branch with no references other than a single cloned
 branch. This is useful e.g. to maintain minimal clones of the default
 branch of some repository for search indexing.
++
+
+If you want to clone submodules without tags provide the
+`--no-tags-submodules` option.
 
 --recurse-submodules[=<pathspec]::
 	After the clone is created, initialize and clone submodules
@@ -243,6 +248,10 @@ branch of some repository for search indexing.
 --[no-]shallow-submodules::
 	All submodules which are cloned will be shallow with a depth of 1.
 
+--no-tags-submodules::
+	All submodules which are cloned will be cloned with the
+	`--no-tags` option.
+
 --separate-git-dir=<git dir>::
 	Instead of placing the cloned repository where it is supposed
 	to be, place the cloned repository at the specified directory,
diff --git a/builtin/clone.c b/builtin/clone.c
index 05f52d6f2b..5a945777a8 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -42,6 +42,7 @@ static int option_no_checkout, option_bare, option_mirror, option_single_branch
 static int option_local = -1, option_no_hardlinks, option_shared;
 static int option_no_tags;
 static int option_shallow_submodules;
+static int option_no_tags_submodules;
 static int deepen;
 static char *option_template, *option_depth, *option_since;
 static char *option_origin = NULL;
@@ -125,6 +126,8 @@ static struct option builtin_clone_options[] = {
 		 N_("don't clone any tags, and make later fetches not to follow them")),
 	OPT_BOOL(0, "shallow-submodules", &option_shallow_submodules,
 		    N_("any cloned submodules will be shallow")),
+	OPT_BOOL(0, "no-tags-submodules", &option_no_tags_submodules,
+		     N_("any cloned submodules will have no tags")),
 	OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"),
 		   N_("separate git dir from working tree")),
 	OPT_STRING_LIST('c', "config", &option_config, N_("key=value"),
@@ -761,6 +764,9 @@ static int checkout(int submodule_progress)
 		if (option_shallow_submodules == 1)
 			argv_array_push(&args, "--depth=1");
 
+		if (option_no_tags_submodules)
+			argv_array_push(&args, "--no-tags");
+
 		if (max_jobs != -1)
 			argv_array_pushf(&args, "--jobs=%d", max_jobs);
 
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 36e4231821..caa4d252ee 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -489,7 +489,7 @@ static int module_name(int argc, const char **argv, const char *prefix)
 
 static int clone_submodule(const char *path, const char *gitdir, const char *url,
 			   const char *depth, struct string_list *reference,
-			   int quiet, int progress)
+			   int quiet, int progress, int no_tags)
 {
 	struct child_process cp = CHILD_PROCESS_INIT;
 
@@ -499,6 +499,8 @@ static int clone_submodule(const char *path, const char *gitdir, const char *url
 		argv_array_push(&cp.args, "--quiet");
 	if (progress)
 		argv_array_push(&cp.args, "--progress");
+	if (no_tags)
+		argv_array_push(&cp.args, "--no-tags");
 	if (depth && *depth)
 		argv_array_pushl(&cp.args, "--depth", depth, NULL);
 	if (reference->nr) {
@@ -623,6 +625,7 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 	struct strbuf sb = STRBUF_INIT;
 	struct string_list reference = STRING_LIST_INIT_NODUP;
 	char *sm_alternate = NULL, *error_strategy = NULL;
+	int no_tags = 0;
 
 	struct option module_clone_options[] = {
 		OPT_STRING(0, "prefix", &prefix,
@@ -643,6 +646,8 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 		OPT_STRING(0, "depth", &depth,
 			   N_("string"),
 			   N_("depth for shallow clones")),
+		OPT_BOOL(0, "no-tags", &no_tags,
+			 N_("don't clone any tags, and make later fetches not to follow them")),
 		OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
 		OPT_BOOL(0, "progress", &progress,
 			   N_("force cloning progress")),
@@ -680,7 +685,7 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 		prepare_possible_alternates(name, &reference);
 
 		if (clone_submodule(path, sm_gitdir, url, depth, &reference,
-				    quiet, progress))
+				    quiet, progress, no_tags))
 			die(_("clone of '%s' into submodule path '%s' failed"),
 			    url, path);
 	} else {
@@ -745,11 +750,12 @@ struct submodule_update_clone {
 	/* failed clones to be retried again */
 	const struct cache_entry **failed_clones;
 	int failed_clones_nr, failed_clones_alloc;
+	int no_tags;
 };
 #define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
 	SUBMODULE_UPDATE_STRATEGY_INIT, 0, 0, -1, STRING_LIST_INIT_DUP, \
 	NULL, NULL, NULL, \
-	STRING_LIST_INIT_DUP, 0, NULL, 0, 0}
+	STRING_LIST_INIT_DUP, 0, NULL, 0, 0, 0}
 
 
 static void next_submodule_warn_missing(struct submodule_update_clone *suc,
@@ -849,6 +855,8 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
 		argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL);
 	if (suc->recommend_shallow && sub->recommend_shallow == 1)
 		argv_array_push(&child->args, "--depth=1");
+	if (suc->no_tags)
+		argv_array_push(&child->args, "--no-tags");
 	argv_array_pushl(&child->args, "--path", sub->path, NULL);
 	argv_array_pushl(&child->args, "--name", sub->name, NULL);
 	argv_array_pushl(&child->args, "--url", sub->url, NULL);
@@ -988,6 +996,8 @@ static int update_clone(int argc, const char **argv, const char *prefix)
 			    N_("parallel jobs")),
 		OPT_BOOL(0, "recommend-shallow", &suc.recommend_shallow,
 			    N_("whether the initial clone should follow the shallow recommendation")),
+		OPT_BOOL(0, "no-tags", &suc.no_tags,
+			 N_("don't clone any tags, and make later fetches not to follow them")),
 		OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
 		OPT_BOOL(0, "progress", &suc.progress,
 			    N_("force cloning progress")),
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 6da997cf42..08fb1319c3 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -1314,6 +1314,7 @@ _git_clone ()
 			--recurse-submodules
 			--no-single-branch
 			--shallow-submodules
+			--no-tags-submodules
 			"
 		return
 		;;
diff --git a/git-submodule.sh b/git-submodule.sh
index c0d0e9a4c6..3371775b0b 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -565,6 +565,9 @@ cmd_update()
 		--depth=*)
 			depth=$1
 			;;
+		--no-tags)
+			no_tags=1
+			;;
 		-j|--jobs)
 			case "$2" in '') usage ;; esac
 			jobs="--jobs=$2"
@@ -601,6 +604,7 @@ cmd_update()
 		${reference:+"$reference"} \
 		${depth:+--depth "$depth"} \
 		${recommend_shallow:+"$recommend_shallow"} \
+		${no_tags:+--no-tags} \
 		${jobs:+$jobs} \
 		"$@" || echo "#unmatched" $?
 	} | {
diff --git a/t/t5616-clone-submodules-tags.sh b/t/t5616-clone-submodules-tags.sh
new file mode 100755
index 0000000000..3c88265352
--- /dev/null
+++ b/t/t5616-clone-submodules-tags.sh
@@ -0,0 +1,72 @@
+#!/bin/sh
+
+test_description='Test cloning of repos with submodules & the --[no-]tags option'
+
+. ./test-lib.sh
+
+pwd=$(pwd)
+
+test_expect_success 'setup' '
+	git checkout -b master &&
+	test_commit commit1 &&
+	test_commit commit2 &&
+	mkdir sub &&
+	(
+		cd sub &&
+		git init &&
+		test_commit subcommit1 &&
+		test_commit subcommit2 &&
+		test_commit subcommit3
+	) &&
+	git submodule add "file://$pwd/sub" sub &&
+	git commit -m "add submodule" &&
+	git tag addsubcommit1
+'
+
+test_expect_success 'tags clone implies tags submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules "file://$pwd/." super_clone &&
+	git -C super_clone for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 3 tags &&
+	git -C super_clone/sub for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 3 tags
+'
+
+test_expect_success 'no-tags clone with no-tags submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules --no-tags --no-tags-submodules "file://$pwd/." super_clone &&
+	git -C super_clone for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 0 tags &&
+	git -C super_clone/sub for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 0 tags
+
+'
+
+test_expect_success 'no-tags clone does not imply no-tags submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules --no-tags "file://$pwd/." super_clone &&
+	git -C super_clone for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 0 tags &&
+	git -C super_clone/sub for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 3 tags
+'
+
+test_expect_success 'no-tags clone with tags submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules --no-tags --tags-submodules "file://$pwd/." super_clone &&
+	git -C super_clone for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 0 tags &&
+	git -C super_clone/sub for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 3 tags
+'
+
+test_expect_success 'tags clone with no-tags submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules --tags --no-tags-submodules "file://$pwd/." super_clone &&
+	git -C super_clone for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 3 tags &&
+	git -C super_clone/sub for-each-ref --format="%(refname:strip=2)" refs/tags/ >tags &&
+	test_line_count = 0 tags
+'
+
+test_done
-- 
2.11.0




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