janw4ld
15a42d21a1
a port of <https://github.com/NixOS/nix/pull/12421> from CppNix, gated behind a `flake-self-attrs` experimental feature. Fixes: https://git.lix.systems/lix-project/lix/issues/942 Change-Id: I655ce089e603d95abc693d6b77130fcf00c7f456
103 lines
2.8 KiB
Bash
103 lines
2.8 KiB
Bash
source common.sh
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# Tests that:
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# - flake.nix may reside inside of a git submodule
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# - the flake can access content outside of the submodule
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#
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# rootRepo
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# ├── root.nix
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# └── submodule
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# ├── flake.nix
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# └── sub.nix
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requireGit
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clearStore
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# Submodules can't be fetched locally by default.
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# See fetchGitSubmodules.sh
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export XDG_CONFIG_HOME=$TEST_HOME/.config
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git config --global protocol.file.allow always
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rootRepo=$TEST_ROOT/rootRepo
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subRepo=$TEST_ROOT/submodule
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otherRepo=$TEST_ROOT/otherRepo
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createGitRepo $subRepo
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cat > $subRepo/flake.nix <<EOF
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{
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outputs = { self }: {
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sub = import ./sub.nix;
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root = import ../root.nix;
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};
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}
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EOF
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echo '"expression in submodule"' > $subRepo/sub.nix
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git -C $subRepo add flake.nix sub.nix
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git -C $subRepo commit -m Initial
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createGitRepo $rootRepo
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git -C $rootRepo submodule init
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git -C $rootRepo submodule add $subRepo submodule
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echo '"expression in root repo"' > $rootRepo/root.nix
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git -C $rootRepo add root.nix
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git -C $rootRepo commit -m "Add root.nix"
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flakeref=git+file://$rootRepo\?submodules=1\&dir=submodule
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# Flake can live inside a submodule and can be accessed via ?dir=submodule
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[[ $(nix eval --json "$flakeref#sub" ) = '"expression in submodule"' ]]
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# The flake can access content outside of the submodule
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[[ $(nix eval --json "$flakeref#root" ) = '"expression in root repo"' ]]
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# Test the use of inputs.self.
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cat > "$rootRepo"/flake.nix <<EOF
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{
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inputs.self.submodules = true;
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outputs = { self }: {
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foo = self.outPath;
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};
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}
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EOF
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git -C "$rootRepo" add flake.nix
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git -C "$rootRepo" commit -m "Bla"
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# make sure it fails without --extra-experimental-features flake-self-attrs
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(! nix eval --raw "$rootRepo#foo")
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storePath=$(nix eval --extra-experimental-features flake-self-attrs --raw "$rootRepo#foo")
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[[ -e "$storePath/submodule" ]]
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# Test another repo referring to a repo that uses inputs.self.
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createGitRepo "$otherRepo"
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cat > "$otherRepo"/flake.nix <<EOF
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{
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inputs.root.url = "git+file://$rootRepo";
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outputs = { self, root }: {
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foo = root.foo;
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};
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}
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EOF
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git -C "$otherRepo" add flake.nix
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# make sure it fails without --extra-experimental-features flake-self-attrs
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(! nix eval --raw "$otherRepo#foo")
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# The first call should refetch the root repo...
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expectStderr 0 nix eval --extra-experimental-features flake-self-attrs --raw "$otherRepo#foo" -vvvvv | grepQuiet "refetching input 'git+file://.\+' due to self attribute"
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[[ $(jq .nodes.root_2.locked.submodules "$otherRepo/flake.lock") == true ]]
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# ... but the second call should have 'submodules = true' in flake.lock, so it should not refetch.
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rm -rf "$TEST_HOME/.cache"
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clearStore
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expectStderr 0 nix eval --raw "$otherRepo#foo" -vvvvv | grepQuietInverse "refetching"
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storePath=$(nix eval --raw "$otherRepo#foo")
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[[ -e "$storePath/submodule" ]]
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