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https://github.com/privatevoid-net/nix-super.git
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6dbd5c26e6
As long as the flake input is locked, it is now only fetched when it
is evaluated (e.g. "nixpkgs" is fetched when
"inputs.nixpkgs.<something>" is evaluated).
This required adding an "id" attribute to the members of "inputs" in
lockfiles, e.g.
"inputs": {
"nixpkgs/release-19.03": {
"id": "nixpkgs",
"inputs": {},
"narHash": "sha256-eYtxncIMFVmOHaHBtTdPGcs/AnJqKqA6tHCm0UmPYQU=",
"nonFlakeInputs": {},
"uri": "github:edolstra/nixpkgs/e9d5882bb861dc48f8d46960e7c820efdbe8f9c1"
}
}
because the flake ID needs to be known beforehand to construct the
"inputs" attrset.
Fixes #2913.
254 lines
6.7 KiB
Bash
254 lines
6.7 KiB
Bash
source common.sh
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if [[ -z $(type -p git) ]]; then
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echo "Git not installed; skipping flake tests"
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exit 99
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fi
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export _NIX_FORCE_HTTP=1
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clearStore
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rm -rf $TEST_HOME/.cache
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registry=$TEST_ROOT/registry.json
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flake1Dir=$TEST_ROOT/flake1
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flake2Dir=$TEST_ROOT/flake2
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flake3Dir=$TEST_ROOT/flake3
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nonFlakeDir=$TEST_ROOT/nonFlake
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for repo in $flake1Dir $flake2Dir $flake3Dir $nonFlakeDir; do
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rm -rf $repo $repo.tmp
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mkdir $repo
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git -C $repo init
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git -C $repo config user.email "foobar@example.com"
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git -C $repo config user.name "Foobar"
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done
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cat > $flake1Dir/flake.nix <<EOF
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{
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name = "flake1";
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epoch = 201906;
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description = "Bla bla";
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outputs = inputs: rec {
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packages.foo = import ./simple.nix;
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defaultPackage = packages.foo;
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};
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}
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EOF
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cp ./simple.nix ./simple.builder.sh ./config.nix $flake1Dir/
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git -C $flake1Dir add flake.nix simple.nix simple.builder.sh config.nix
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git -C $flake1Dir commit -m 'Initial'
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cat > $flake2Dir/flake.nix <<EOF
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{
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name = "flake2";
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epoch = 201906;
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inputs = [ "flake1" ];
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description = "Fnord";
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outputs = inputs: rec {
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packages.bar = inputs.flake1.outputs.packages.foo;
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};
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}
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EOF
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git -C $flake2Dir add flake.nix
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git -C $flake2Dir commit -m 'Initial'
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cat > $flake3Dir/flake.nix <<EOF
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{
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name = "flake3";
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epoch = 201906;
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inputs = [ "flake2" ];
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description = "Fnord";
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outputs = inputs: rec {
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packages.xyzzy = inputs.flake2.outputs.packages.bar;
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};
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}
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EOF
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git -C $flake3Dir add flake.nix
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git -C $flake3Dir commit -m 'Initial'
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cat > $nonFlakeDir/README.md <<EOF
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Not much
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EOF
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git -C $nonFlakeDir add README.md
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git -C $nonFlakeDir commit -m 'Initial'
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cat > $registry <<EOF
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{
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"flakes": {
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"flake1": {
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"uri": "file://$flake1Dir"
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},
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"flake2": {
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"uri": "file://$flake2Dir"
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},
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"flake3": {
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"uri": "file://$flake3Dir"
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},
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"nixpkgs": {
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"uri": "flake1"
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}
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},
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"version": 1
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}
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EOF
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# Test 'nix flake list'.
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(( $(nix flake list --flake-registry $registry | wc -l) == 4 ))
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# Test 'nix flake info'.
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nix flake info --flake-registry $registry flake1 | grep -q 'ID: *flake1'
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# Test 'nix flake info' on a local flake.
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(cd $flake1Dir && nix flake info --flake-registry $registry) | grep -q 'ID: *flake1'
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(cd $flake1Dir && nix flake info --flake-registry $registry .) | grep -q 'ID: *flake1'
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nix flake info --flake-registry $registry $flake1Dir | grep -q 'ID: *flake1'
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# Test 'nix flake info --json'.
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json=$(nix flake info --flake-registry $registry flake1 --json | jq .)
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[[ $(echo "$json" | jq -r .description) = 'Bla bla' ]]
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[[ -d $(echo "$json" | jq -r .path) ]]
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[[ $(echo "$json" | jq -r .lastModified) = $(git -C $flake1Dir log -n1 --format=%ct) ]]
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# Test 'nix build' on a flake.
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nix build -o $TEST_ROOT/result --flake-registry $registry flake1:foo
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[[ -e $TEST_ROOT/result/hello ]]
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# Test defaultPackage.
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nix build -o $TEST_ROOT/result --flake-registry $registry flake1
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[[ -e $TEST_ROOT/result/hello ]]
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake1Dir
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nix build -o $TEST_ROOT/result --flake-registry $registry file://$flake1Dir
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# Building a flake with an unlocked dependency should fail in pure mode.
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(! nix eval "(builtins.getFlake "$flake2Dir")")
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# But should succeed in impure mode.
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nix build -o $TEST_ROOT/result --flake-registry $registry flake2:bar --impure
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# Test automatic lock file generation.
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake2Dir:bar
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[[ -e $flake2Dir/flake.lock ]]
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git -C $flake2Dir commit flake.lock -m 'Add flake.lock'
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# Rerunning the build should not change the lockfile.
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake2Dir:bar
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[[ -z $(git -C $flake2Dir diff master) ]]
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# Now we should be able to build the flake in pure mode.
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nix build -o $TEST_ROOT/result --flake-registry $registry flake2:bar
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# Or without a registry.
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# FIXME: shouldn't need '--flake-registry /no-registry'?
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nix build -o $TEST_ROOT/result --flake-registry /no-registry file://$flake2Dir:bar --tarball-ttl 0
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# Test whether indirect dependencies work.
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake3Dir:xyzzy
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# Add dependency to flake3.
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rm $flake3Dir/flake.nix
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cat > $flake3Dir/flake.nix <<EOF
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{
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name = "flake3";
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epoch = 201906;
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inputs = [ "flake1" "flake2" ];
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description = "Fnord";
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outputs = inputs: rec {
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packages.xyzzy = inputs.flake2.outputs.packages.bar;
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packages.sth = inputs.flake1.outputs.packages.foo;
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};
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}
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EOF
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git -C $flake3Dir add flake.nix
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git -C $flake3Dir commit -m 'Update flake.nix'
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# Check whether `nix build` works with an incomplete lockfile
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake3Dir:sth
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# Check whether it saved the lockfile
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[[ ! (-z $(git -C $flake3Dir diff master)) ]]
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git -C $flake3Dir commit -m 'Add lockfile'
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# Unsupported epochs should be an error.
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sed -i $flake3Dir/flake.nix -e s/201906/201909/
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake3Dir:sth 2>&1 | grep 'unsupported epoch'
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# Test whether registry caching works.
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nix flake list --flake-registry file://$registry | grep -q flake3
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mv $registry $registry.tmp
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nix flake list --flake-registry file://$registry --tarball-ttl 0 | grep -q flake3
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mv $registry.tmp $registry
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# Test whether flakes are registered as GC roots for offline use.
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rm -rf $TEST_HOME/.cache
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nix build -o $TEST_ROOT/result --flake-registry file://$registry file://$flake2Dir:bar
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mv $flake1Dir $flake1Dir.tmp
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mv $flake2Dir $flake2Dir.tmp
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nix-store --gc
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nix build -o $TEST_ROOT/result --flake-registry file://$registry file://$flake2Dir:bar
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nix build -o $TEST_ROOT/result --flake-registry file://$registry file://$flake2Dir:bar --tarball-ttl 0
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mv $flake1Dir.tmp $flake1Dir
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mv $flake2Dir.tmp $flake2Dir
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# Add nonFlakeInputs to flake3.
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rm $flake3Dir/flake.nix
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cat > $flake3Dir/flake.nix <<EOF
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{
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name = "flake3";
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epoch = 201906;
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inputs = [ "flake1" "flake2" ];
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nonFlakeInputs = {
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nonFlake = "$nonFlakeDir";
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};
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description = "Fnord";
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outputs = inputs: rec {
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packages.xyzzy = inputs.flake2.outputs.packages.bar;
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packages.sth = inputs.flake1.outputs.packages.foo;
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};
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}
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EOF
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git -C $flake3Dir add flake.nix
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git -C $flake3Dir commit -m 'Add nonFlakeInputs'
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# Check whether `nix build` works with a lockfile which is missing a nonFlakeInputs
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake3Dir:sth
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# Check whether flake input fetching is lazy: flake3:sth does not
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# depend on flake2, so this shouldn't fail.
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rm -rf $TEST_HOME/.cache
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clearStore
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mv $flake2Dir $flake2Dir.tmp
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nix build -o $TEST_ROOT/result --flake-registry $registry flake3:sth
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(! nix build -o $TEST_ROOT/result --flake-registry $registry flake3:xyzzy)
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mv $flake2Dir.tmp $flake2Dir
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