From d92028a575dde9c325e23f89c3d2b24f13868c57 Mon Sep 17 00:00:00 2001 From: Stefan Beller Date: Thu, 28 Apr 2016 13:02:45 -0700 Subject: [PATCH] submodule init: fail gracefully with a missing .gitmodules file When there is no .gitmodules file availabe to initialize a submodule from, `submodule_from_path` just returns NULL. We need to check for that and abort gracefully. When `submodule init` was implemented in shell, a missing .gitmodules file would result in an error message No url found for submodule path '%s' in .gitmodules Replicate that error message for now. When the .gitmodules file is missing we can probably fail even earlier for all of the submodules with an improved error message. Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano --- builtin/submodule--helper.c | 10 +++++++--- t/t7400-submodule-basic.sh | 8 ++++++++ 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c index b6d4f27648..ce9d11e8d3 100644 --- a/builtin/submodule--helper.c +++ b/builtin/submodule--helper.c @@ -314,13 +314,17 @@ static void init_submodule(const char *path, const char *prefix, int quiet) /* Only loads from .gitmodules, no overlay with .git/config */ gitmodules_config(); - sub = submodule_from_path(null_sha1, path); - if (prefix) { strbuf_addf(&sb, "%s%s", prefix, path); displaypath = strbuf_detach(&sb, NULL); } else - displaypath = xstrdup(sub->path); + displaypath = xstrdup(path); + + sub = submodule_from_path(null_sha1, path); + + if (!sub) + die(_("No url found for submodule path '%s' in .gitmodules"), + displaypath); /* * Copy url setting when it is not set yet. diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh index f99f674ac7..df6b4da2ba 100755 --- a/t/t7400-submodule-basic.sh +++ b/t/t7400-submodule-basic.sh @@ -18,6 +18,14 @@ test_expect_success 'setup - initial commit' ' git branch initial ' +test_expect_success 'submodule init aborts on missing .gitmodules file' ' + test_when_finished "git update-index --remove sub" && + git update-index --add --cacheinfo 160000,$(git rev-parse HEAD),sub && + # missing the .gitmodules file here + test_must_fail git submodule init 2>actual && + test_i18ngrep "No url found for submodule path" actual +' + test_expect_success 'configuration parsing' ' test_when_finished "rm -f .gitmodules" && cat >.gitmodules <<-\EOF && -- 2.39.2