[PATCH v4 3/7] submodule--helper: allow setting superprefix for init_submodule()

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From: Atharva Raykar <raykar.ath@xxxxxxxxx>

We allow callers of the `init_submodule()` function to optionally
override the superprefix from the environment.

We need to enable this option because in our conversion of the update
command that will follow, the '--init' option will be handled through
this API. We will need to change the superprefix at that time to ensure
the display paths show correctly in the output messages.

Mentored-by: Christian Couder <christian.couder@xxxxxxxxx>
Mentored-by: Shourya Shukla <periperidip@xxxxxxxxx>
Signed-off-by: Atharva Raykar <raykar.ath@xxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
 builtin/submodule--helper.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index d38a64c7b7d..f8e18820ace 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -608,18 +608,22 @@ static int module_foreach(int argc, const char **argv, const char *prefix)
 
 struct init_cb {
 	const char *prefix;
+	const char *superprefix;
 	unsigned int flags;
 };
 #define INIT_CB_INIT { 0 }
 
 static void init_submodule(const char *path, const char *prefix,
-			   unsigned int flags)
+			   const char *superprefix, unsigned int flags)
 {
 	const struct submodule *sub;
 	struct strbuf sb = STRBUF_INIT;
 	char *upd = NULL, *url = NULL, *displaypath;
 
-	displaypath = get_submodule_displaypath(path, prefix);
+	/* try superprefix from the environment, if it is not passed explicitly */
+	if (!superprefix)
+		superprefix = get_super_prefix();
+	displaypath = do_get_submodule_displaypath(path, prefix, superprefix);
 
 	sub = submodule_from_path(the_repository, null_oid(), path);
 
@@ -693,7 +697,7 @@ static void init_submodule(const char *path, const char *prefix,
 static void init_submodule_cb(const struct cache_entry *list_item, void *cb_data)
 {
 	struct init_cb *info = cb_data;
-	init_submodule(list_item->name, info->prefix, info->flags);
+	init_submodule(list_item->name, info->prefix, info->superprefix, info->flags);
 }
 
 static int module_init(int argc, const char **argv, const char *prefix)
-- 
2.35.0.894.g563b84683b9




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