[PATCH v2] submodule: suppress checking for file name ambiguity for object ids

["Orgad Shaneh via GitGitGadget" <gitgitgadget@gmail.com>]

From: Orgad Shaneh <orgads@gmail.com>

The argv argument of collect_changed_submodules() contains obly object ids
(the objects references of all the refs).

Notify setup_revisions() that the input is not filenames by passing
assume_dashdash, so it can avoid redundant stat for each ref.

A better improvement would be to pass oid_array instead of stringified argv,
but that will require a larger change, which can be done later.

Signed-off-by: Orgad Shaneh <orgads@gmail.com>
---
    submodule: suppress checking for file name ambiguity for object ids
    
    The argv argument of collect_changed_submodules() contains obly object
    ids (submodule references).
    
    Notify setup_revisions() that the input is not filenames by passing
    assume_dashdash, so it can avoid redundant stat for each ref.
    
    A better improvement would be to pass oid_array instead of stringified
    argv, but that will require a larger change, which can be done later.

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-725%2Forgads%2Fsubmodule-not-filename-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-725/orgads/submodule-not-filename-v2
Pull-Request: https://github.com/gitgitgadget/git/pull/725

Range-diff vs v1:

 1:  f12112cc88 ! 1:  501ce90e9a submodule: suppress checking for file name ambiguity for object ids
     @@ Commit message
          submodule: suppress checking for file name ambiguity for object ids
      
          The argv argument of collect_changed_submodules() contains obly object ids
     -    (submodule references).
     +    (the objects references of all the refs).
      
          Notify setup_revisions() that the input is not filenames by passing
          assume_dashdash, so it can avoid redundant stat for each ref.


 submodule.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/submodule.c b/submodule.c
index 3cbcf40dfc..9b5bfb12a3 100644
--- a/submodule.c
+++ b/submodule.c
@@ -840,9 +840,12 @@ static void collect_changed_submodules(struct repository *r,
 {
 	struct rev_info rev;
 	const struct commit *commit;
+	struct setup_revision_opt s_r_opt = {
+		.assume_dashdash = 1,
+	};
 
 	repo_init_revisions(r, &rev, NULL);
-	setup_revisions(argv->nr, argv->v, &rev, NULL);
+	setup_revisions(argv->nr, argv->v, &rev, &s_r_opt);
 	if (prepare_revision_walk(&rev))
 		die(_("revision walk setup failed"));
 

base-commit: 3a238e539bcdfe3f9eb5010fd218640c1b499f7a
-- 
gitgitgadget