[PATCHv6 0/3] submodule--helper: Have some refactoring only patches first

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Added suggestions from Eric and Junio. Interdiff to v5 below.

Stefan Beller (3):
  submodule: Reimplement `module_list` shell function in C
  submodule: Reimplement `module_name` shell function in C
  submodule: Reimplement `module_clone` shell function in C

 .gitignore                  |   1 +
 Makefile                    |   1 +
 builtin.h                   |   1 +
 builtin/submodule--helper.c | 282 ++++++++++++++++++++++++++++++++++++++++++++
 git-submodule.sh            | 164 +++-----------------------
 git.c                       |   1 +
 6 files changed, 301 insertions(+), 149 deletions(-)
 create mode 100644 builtin/submodule--helper.c

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 4e30d8e..f4c3eff 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -10,12 +10,16 @@
 #include "string-list.h"
 #include "run-command.h"
 
-static const struct cache_entry **ce_entries;
-static int ce_alloc, ce_used;
+struct module_list {
+	const struct cache_entry **entries;
+	int alloc, nr;
+};
+#define MODULE_LIST_INIT { NULL, 0, 0 }
 
 static int module_list_compute(int argc, const char **argv,
-				const char *prefix,
-				struct pathspec *pathspec)
+			       const char *prefix,
+			       struct pathspec *pathspec,
+			       struct module_list *list)
 {
 	int i, result = 0;
 	char *max_prefix, *ps_matched = NULL;
@@ -40,12 +44,11 @@ static int module_list_compute(int argc, const char **argv,
 
 		if (!S_ISGITLINK(ce->ce_mode) ||
 		    !match_pathspec(pathspec, ce->name, ce_namelen(ce),
-				    max_prefix_len, ps_matched,
-				    S_ISGITLINK(ce->ce_mode) | S_ISDIR(ce->ce_mode)))
+				    max_prefix_len, ps_matched, 1))
 			continue;
 
-		ALLOC_GROW(ce_entries, ce_used + 1, ce_alloc);
-		ce_entries[ce_used++] = ce;
+		ALLOC_GROW(list->entries, list->nr + 1, list->alloc);
+		list->entries[list->nr++] = ce;
 		while (i + 1 < active_nr &&
 		       !strcmp(ce->name, active_cache[i + 1]->name))
 			/*
@@ -68,6 +71,7 @@ static int module_list(int argc, const char **argv, const char *prefix)
 {
 	int i;
 	struct pathspec pathspec;
+	struct module_list list = MODULE_LIST_INIT;
 
 	struct option module_list_options[] = {
 		OPT_STRING(0, "prefix", &prefix,
@@ -84,13 +88,13 @@ static int module_list(int argc, const char **argv, const char *prefix)
 	argc = parse_options(argc, argv, prefix, module_list_options,
 			     git_submodule_helper_usage, 0);
 
-	if (module_list_compute(argc, argv, prefix, &pathspec) < 0) {
+	if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) {
 		printf("#unmatched\n");
 		return 1;
 	}
 
-	for (i = 0; i < ce_used; i++) {
-		const struct cache_entry *ce = ce_entries[i];
+	for (i = 0; i < list.nr; i++) {
+		const struct cache_entry *ce = list.entries[i];
 
 		if (ce_stage(ce))
 			printf("%06o %s U\t", ce->ce_mode, sha1_to_hex(null_sha1));
@@ -142,10 +146,7 @@ static int clone_submodule(const char *path, const char *gitdir, const char *url
 
 	cp.git_cmd = 1;
 	cp.env = local_repo_env;
-
 	cp.no_stdin = 1;
-	cp.no_stdout = 1;
-	cp.no_stderr = 1;
 
 	return run_command(&cp);
 }
@@ -206,8 +207,7 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 		if (safe_create_leading_directories_const(path) < 0)
 			die(_("could not create directory '%s'"), path);
 		strbuf_addf(&sb, "%s/index", sm_gitdir);
-		if (unlink(sb.buf) < 0)
-			die_errno(_("failed to delete '%s'"), sm_gitdir);
+		unlink_or_warn(sb.buf);
 		strbuf_reset(&sb);
 	}
 
@@ -218,7 +218,7 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 	if (path && *path)
 		strbuf_addf(&sb, "%s/.git", path);
 	else
-		strbuf_addf(&sb, ".git");
+		strbuf_addstr(&sb, ".git");
 
 	if (safe_create_leading_directories_const(sb.buf) < 0)
 		die(_("could not create leading directories of '%s'"), sb.buf);
diff --git a/git-submodule.sh b/git-submodule.sh
index 7cfdc2c..8b0eb9a 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -227,7 +227,7 @@ cmd_add()
 			shift
 			;;
 		--depth=*)
-			depth="$1"
+			depth=$1
 			;;
 		--)
 			shift

-- 
2.5.0.256.g89f8063.dirty

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