[PATCHv2 1/2] submodule init: fail gracefully with a missing .gitmodules file
From: Stefan Beller <hidden>
Date: 2016-06-16 02:19:04
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted>
---
applies on submodule-init.
Thanks,
Stefan
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 b6d4f27..ce9d11e 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 f99f674..df6b4da 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 &&
--
2.8.0.28.ga4e36c9