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-rw-r--r--tests/flakes/flake-in-submodule.sh52
-rw-r--r--tests/local.mk1
2 files changed, 53 insertions, 0 deletions
diff --git a/tests/flakes/flake-in-submodule.sh b/tests/flakes/flake-in-submodule.sh
new file mode 100644
index 000000000..21a4b52de
--- /dev/null
+++ b/tests/flakes/flake-in-submodule.sh
@@ -0,0 +1,52 @@
+source common.sh
+
+# Tests that:
+# - flake.nix may reside inside of a git submodule
+# - the flake can access content outside of the submodule
+#
+# rootRepo
+# ├── root.nix
+# └── submodule
+# ├── flake.nix
+# └── sub.nix
+
+
+requireGit
+
+clearStore
+
+# Submodules can't be fetched locally by default.
+# See fetchGitSubmodules.sh
+export XDG_CONFIG_HOME=$TEST_HOME/.config
+git config --global protocol.file.allow always
+
+
+rootRepo=$TEST_ROOT/rootRepo
+subRepo=$TEST_ROOT/submodule
+
+
+createGitRepo $subRepo
+cat > $subRepo/flake.nix <<EOF
+{
+ outputs = { self }: {
+ sub = import ./sub.nix;
+ root = import ../root.nix;
+ };
+}
+EOF
+echo '"expression in submodule"' > $subRepo/sub.nix
+git -C $subRepo add flake.nix sub.nix
+git -C $subRepo commit -m Initial
+
+createGitRepo $rootRepo
+
+git -C $rootRepo submodule init
+git -C $rootRepo submodule add $subRepo submodule
+echo '"expression in root repo"' > $rootRepo/root.nix
+git -C $rootRepo add root.nix
+git -C $rootRepo commit -m "Add root.nix"
+
+# Flake can live inside a submodule and can be accessed via ?dir=submodule
+[[ $(nix eval --json git+file://$rootRepo\?submodules=1\&dir=submodule#sub ) = '"expression in submodule"' ]]
+# The flake can access content outside of the submodule
+[[ $(nix eval --json git+file://$rootRepo\?submodules=1\&dir=submodule#root ) = '"expression in root repo"' ]]
diff --git a/tests/local.mk b/tests/local.mk
index 4c4383c38..328f27e90 100644
--- a/tests/local.mk
+++ b/tests/local.mk
@@ -13,6 +13,7 @@ nix_tests = \
flakes/unlocked-override.sh \
flakes/absolute-paths.sh \
flakes/build-paths.sh \
+ flakes/flake-in-submodule.sh \
ca/gc.sh \
gc.sh \
remote-store.sh \