nix/tests/flakes/flakes.sh
2022-12-12 15:32:02 +01:00

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source ./common.sh
requireGit
clearStore
rm -rf $TEST_HOME/.cache $TEST_HOME/.config
flake1Dir=$TEST_ROOT/flake1
flake2Dir=$TEST_ROOT/flake2
flake3Dir=$TEST_ROOT/flake3
flake5Dir=$TEST_ROOT/flake5
flake7Dir=$TEST_ROOT/flake7
nonFlakeDir=$TEST_ROOT/nonFlake
badFlakeDir=$TEST_ROOT/badFlake
flakeGitBare=$TEST_ROOT/flakeGitBare
for repo in $flake1Dir $flake2Dir $flake3Dir $flake7Dir $nonFlakeDir; do
# Give one repo a non-main initial branch.
extraArgs=
if [[ $repo == $flake2Dir ]]; then
extraArgs="--initial-branch=main"
fi
createGitRepo "$repo" "$extraArgs"
done
createSimpleGitFlake $flake1Dir
cat > $flake2Dir/flake.nix <<EOF
{
description = "Fnord";
outputs = { self, flake1 }: rec {
packages.$system.bar = flake1.packages.$system.foo;
};
}
EOF
git -C $flake2Dir add flake.nix
git -C $flake2Dir commit -m 'Initial'
cat > $flake3Dir/flake.nix <<EOF
{
description = "Fnord";
outputs = { self, flake2 }: rec {
packages.$system.xyzzy = flake2.packages.$system.bar;
checks = {
xyzzy = packages.$system.xyzzy;
};
};
}
EOF
cat > $flake3Dir/default.nix <<EOF
{ x = 123; }
EOF
git -C $flake3Dir add flake.nix default.nix
git -C $flake3Dir commit -m 'Initial'
cat > $nonFlakeDir/README.md <<EOF
FNORD
EOF
git -C $nonFlakeDir add README.md
git -C $nonFlakeDir commit -m 'Initial'
# Construct a custom registry, additionally test the --registry flag
nix registry add --registry $registry flake1 git+file://$flake1Dir
nix registry add --registry $registry flake2 git+file://$flake2Dir
nix registry add --registry $registry flake3 git+file://$flake3Dir
nix registry add --registry $registry flake4 flake3
nix registry add --registry $registry nixpkgs flake1
# Test 'nix registry list'.
[[ $(nix registry list | wc -l) == 5 ]]
nix registry list | grep -q '^global'
nix registry list | grep -q -v '^user' # nothing in user registry
# Test 'nix flake metadata'.
nix flake metadata flake1
nix flake metadata flake1 | grep -q 'Locked URL:.*flake1.*'
# Test 'nix flake metadata' on a local flake.
(cd $flake1Dir && nix flake metadata) | grep -q 'URL:.*flake1.*'
(cd $flake1Dir && nix flake metadata .) | grep -q 'URL:.*flake1.*'
nix flake metadata $flake1Dir | grep -q 'URL:.*flake1.*'
# Test 'nix flake metadata --json'.
json=$(nix flake metadata flake1 --json | jq .)
[[ $(echo "$json" | jq -r .description) = 'Bla bla' ]]
[[ -d $(echo "$json" | jq -r .path) ]]
[[ $(echo "$json" | jq -r .lastModified) = $(git -C $flake1Dir log -n1 --format=%ct) ]]
hash1=$(echo "$json" | jq -r .revision)
echo -n '# foo' >> $flake1Dir/flake.nix
git -C $flake1Dir commit -a -m 'Foo'
hash2=$(nix flake metadata flake1 --json --refresh | jq -r .revision)
[[ $hash1 != $hash2 ]]
# Test 'nix build' on a flake.
nix build -o $TEST_ROOT/result flake1#foo
[[ -e $TEST_ROOT/result/hello ]]
# Test packages.default.
nix build -o $TEST_ROOT/result flake1
[[ -e $TEST_ROOT/result/hello ]]
nix build -o $TEST_ROOT/result $flake1Dir
nix build -o $TEST_ROOT/result git+file://$flake1Dir
# Check that store symlinks inside a flake are not interpreted as flakes.
nix build -o $flake1Dir/result git+file://$flake1Dir
nix path-info $flake1Dir/result
# 'getFlake' on an unlocked flakeref should fail in pure mode, but
# succeed in impure mode.
(! nix build -o $TEST_ROOT/result --expr "(builtins.getFlake \"$flake1Dir\").packages.$system.default")
nix build -o $TEST_ROOT/result --expr "(builtins.getFlake \"$flake1Dir\").packages.$system.default" --impure
# 'getFlake' on a locked flakeref should succeed even in pure mode.
nix build -o $TEST_ROOT/result --expr "(builtins.getFlake \"git+file://$flake1Dir?rev=$hash2\").packages.$system.default"
# Building a flake with an unlocked dependency should fail in pure mode.
(! nix build -o $TEST_ROOT/result flake2#bar --no-registries)
(! nix build -o $TEST_ROOT/result flake2#bar --no-use-registries)
(! nix eval --expr "builtins.getFlake \"$flake2Dir\"")
# But should succeed in impure mode.
(! nix build -o $TEST_ROOT/result flake2#bar --impure)
nix build -o $TEST_ROOT/result flake2#bar --impure --no-write-lock-file
nix eval --expr "builtins.getFlake \"$flake2Dir\"" --impure
# Building a local flake with an unlocked dependency should fail with --no-update-lock-file.
nix build -o $TEST_ROOT/result $flake2Dir#bar --no-update-lock-file 2>&1 | grep 'requires lock file changes'
# But it should succeed without that flag.
nix build -o $TEST_ROOT/result $flake2Dir#bar --no-write-lock-file
nix build -o $TEST_ROOT/result $flake2Dir#bar --no-update-lock-file 2>&1 | grep 'requires lock file changes'
nix build -o $TEST_ROOT/result $flake2Dir#bar --commit-lock-file
[[ -e $flake2Dir/flake.lock ]]
[[ -z $(git -C $flake2Dir diff main || echo failed) ]]
# Rerunning the build should not change the lockfile.
nix build -o $TEST_ROOT/result $flake2Dir#bar
[[ -z $(git -C $flake2Dir diff main || echo failed) ]]
# Building with a lockfile should not require a fetch of the registry.
nix build -o $TEST_ROOT/result --flake-registry file:///no-registry.json $flake2Dir#bar --refresh
nix build -o $TEST_ROOT/result --no-registries $flake2Dir#bar --refresh
nix build -o $TEST_ROOT/result --no-use-registries $flake2Dir#bar --refresh
# Updating the flake should not change the lockfile.
nix flake lock $flake2Dir
[[ -z $(git -C $flake2Dir diff main || echo failed) ]]
# Now we should be able to build the flake in pure mode.
nix build -o $TEST_ROOT/result flake2#bar
# Or without a registry.
nix build -o $TEST_ROOT/result --no-registries git+file://$flake2Dir#bar --refresh
nix build -o $TEST_ROOT/result --no-use-registries git+file://$flake2Dir#bar --refresh
# Test whether indirect dependencies work.
nix build -o $TEST_ROOT/result $flake3Dir#xyzzy
git -C $flake3Dir add flake.lock
# Add dependency to flake3.
rm $flake3Dir/flake.nix
cat > $flake3Dir/flake.nix <<EOF
{
description = "Fnord";
outputs = { self, flake1, flake2 }: rec {
packages.$system.xyzzy = flake2.packages.$system.bar;
packages.$system."sth sth" = flake1.packages.$system.foo;
};
}
EOF
git -C $flake3Dir add flake.nix
git -C $flake3Dir commit -m 'Update flake.nix'
# Check whether `nix build` works with an incomplete lockfile
nix build -o $TEST_ROOT/result $flake3Dir#"sth sth"
nix build -o $TEST_ROOT/result $flake3Dir#"sth%20sth"
# Check whether it saved the lockfile
[[ -n $(git -C $flake3Dir diff master) ]]
git -C $flake3Dir add flake.lock
git -C $flake3Dir commit -m 'Add lockfile'
# Test whether registry caching works.
nix registry list --flake-registry file://$registry | grep -q flake3
mv $registry $registry.tmp
nix store gc
nix registry list --flake-registry file://$registry --refresh | grep -q flake3
mv $registry.tmp $registry
# Test whether flakes are registered as GC roots for offline use.
# FIXME: use tarballs rather than git.
rm -rf $TEST_HOME/.cache
nix store gc # get rid of copies in the store to ensure they get fetched to our git cache
_NIX_FORCE_HTTP=1 nix build -o $TEST_ROOT/result git+file://$flake2Dir#bar
mv $flake1Dir $flake1Dir.tmp
mv $flake2Dir $flake2Dir.tmp
nix store gc
_NIX_FORCE_HTTP=1 nix build -o $TEST_ROOT/result git+file://$flake2Dir#bar
_NIX_FORCE_HTTP=1 nix build -o $TEST_ROOT/result git+file://$flake2Dir#bar --refresh
mv $flake1Dir.tmp $flake1Dir
mv $flake2Dir.tmp $flake2Dir
# Add nonFlakeInputs to flake3.
rm $flake3Dir/flake.nix
cat > $flake3Dir/flake.nix <<EOF
{
inputs = {
flake1 = {};
flake2 = {};
nonFlake = {
url = git+file://$nonFlakeDir;
flake = false;
};
nonFlakeFile = {
url = path://$nonFlakeDir/README.md;
flake = false;
};
nonFlakeFile2 = {
url = "$nonFlakeDir/README.md";
flake = false;
};
};
description = "Fnord";
outputs = inputs: rec {
packages.$system.xyzzy = inputs.flake2.packages.$system.bar;
packages.$system.sth = inputs.flake1.packages.$system.foo;
packages.$system.fnord =
with import ./config.nix;
mkDerivation {
inherit system;
name = "fnord";
dummy = builtins.readFile (builtins.path { name = "source"; path = ./.; filter = path: type: baseNameOf path == "config.nix"; } + "/config.nix");
dummy2 = builtins.readFile (builtins.path { name = "source"; path = inputs.flake1; filter = path: type: baseNameOf path == "simple.nix"; } + "/simple.nix");
buildCommand = ''
cat \${inputs.nonFlake}/README.md > \$out
[[ \$(cat \${inputs.nonFlake}/README.md) = \$(cat \${inputs.nonFlakeFile}) ]]
[[ \${inputs.nonFlakeFile} = \${inputs.nonFlakeFile2} ]]
'';
};
};
}
EOF
cp ../config.nix $flake3Dir
git -C $flake3Dir add flake.nix config.nix
git -C $flake3Dir commit -m 'Add nonFlakeInputs'
# Check whether `nix build` works with a lockfile which is missing a
# nonFlakeInputs.
nix build -o $TEST_ROOT/result $flake3Dir#sth --commit-lock-file
nix build -o $TEST_ROOT/result flake3#fnord
[[ $(cat $TEST_ROOT/result) = FNORD ]]
# Check whether flake input fetching is lazy: flake3#sth does not
# depend on flake2, so this shouldn't fail.
rm -rf $TEST_HOME/.cache
clearStore
mv $flake2Dir $flake2Dir.tmp
mv $nonFlakeDir $nonFlakeDir.tmp
nix build -o $TEST_ROOT/result flake3#sth
(! nix build -o $TEST_ROOT/result flake3#xyzzy)
(! nix build -o $TEST_ROOT/result flake3#fnord)
mv $flake2Dir.tmp $flake2Dir
mv $nonFlakeDir.tmp $nonFlakeDir
nix build -o $TEST_ROOT/result flake3#xyzzy flake3#fnord
# Test doing multiple `lookupFlake`s
nix build -o $TEST_ROOT/result flake4#xyzzy
# Test 'nix flake update' and --override-flake.
nix flake lock $flake3Dir
[[ -z $(git -C $flake3Dir diff master || echo failed) ]]
nix flake update $flake3Dir --override-flake flake2 nixpkgs
[[ ! -z $(git -C $flake3Dir diff master || echo failed) ]]
# Make branch "removeXyzzy" where flake3 doesn't have xyzzy anymore
git -C $flake3Dir checkout -b removeXyzzy
rm $flake3Dir/flake.nix
cat > $flake3Dir/flake.nix <<EOF
{
inputs = {
nonFlake = {
url = "$nonFlakeDir";
flake = false;
};
};
description = "Fnord";
outputs = { self, flake1, flake2, nonFlake }: rec {
packages.$system.sth = flake1.packages.$system.foo;
packages.$system.fnord =
with import ./config.nix;
mkDerivation {
inherit system;
name = "fnord";
buildCommand = ''
cat \${nonFlake}/README.md > \$out
'';
};
};
}
EOF
nix flake lock $flake3Dir
git -C $flake3Dir add flake.nix flake.lock
git -C $flake3Dir commit -m 'Remove packages.xyzzy'
git -C $flake3Dir checkout master
# Test whether fuzzy-matching works for registry entries.
(! nix build -o $TEST_ROOT/result flake4/removeXyzzy#xyzzy)
nix build -o $TEST_ROOT/result flake4/removeXyzzy#sth
# Testing the nix CLI
nix registry add flake1 flake3
[[ $(nix registry list | wc -l) == 6 ]]
nix registry pin flake1
[[ $(nix registry list | wc -l) == 6 ]]
nix registry pin flake1 flake3
[[ $(nix registry list | wc -l) == 6 ]]
nix registry remove flake1
[[ $(nix registry list | wc -l) == 5 ]]
# Test 'nix registry list' with a disabled global registry.
nix registry add user-flake1 git+file://$flake1Dir
nix registry add user-flake2 git+file://$flake2Dir
[[ $(nix --flake-registry "" registry list | wc -l) == 2 ]]
nix --flake-registry "" registry list | grep -q -v '^global' # nothing in global registry
nix --flake-registry "" registry list | grep -q '^user'
nix registry remove user-flake1
nix registry remove user-flake2
[[ $(nix registry list | wc -l) == 5 ]]
# Test 'nix flake clone'.
rm -rf $TEST_ROOT/flake1-v2
nix flake clone flake1 --dest $TEST_ROOT/flake1-v2
[ -e $TEST_ROOT/flake1-v2/flake.nix ]
# Test 'follows' inputs.
cat > $flake3Dir/flake.nix <<EOF
{
inputs.foo = {
type = "indirect";
id = "flake1";
};
inputs.bar.follows = "foo";
outputs = { self, foo, bar }: {
};
}
EOF
nix flake lock $flake3Dir
[[ $(jq -c .nodes.root.inputs.bar $flake3Dir/flake.lock) = '["foo"]' ]]
cat > $flake3Dir/flake.nix <<EOF
{
inputs.bar.follows = "flake2/flake1";
outputs = { self, flake2, bar }: {
};
}
EOF
nix flake lock $flake3Dir
[[ $(jq -c .nodes.root.inputs.bar $flake3Dir/flake.lock) = '["flake2","flake1"]' ]]
cat > $flake3Dir/flake.nix <<EOF
{
inputs.bar.follows = "flake2";
outputs = { self, flake2, bar }: {
};
}
EOF
nix flake lock $flake3Dir
[[ $(jq -c .nodes.root.inputs.bar $flake3Dir/flake.lock) = '["flake2"]' ]]
# Test overriding inputs of inputs.
writeTrivialFlake $flake7Dir
git -C $flake7Dir add flake.nix
git -C $flake7Dir commit -m 'Initial'
cat > $flake3Dir/flake.nix <<EOF
{
inputs.flake2.inputs.flake1 = {
type = "git";
url = file://$flake7Dir;
};
outputs = { self, flake2 }: {
};
}
EOF
nix flake lock $flake3Dir
[[ $(jq .nodes.flake1.locked.url $flake3Dir/flake.lock) =~ flake7 ]]
cat > $flake3Dir/flake.nix <<EOF
{
inputs.flake2.inputs.flake1.follows = "foo";
inputs.foo.url = git+file://$flake7Dir;
outputs = { self, flake2 }: {
};
}
EOF
nix flake update $flake3Dir
[[ $(jq -c .nodes.flake2.inputs.flake1 $flake3Dir/flake.lock) =~ '["foo"]' ]]
[[ $(jq .nodes.foo.locked.url $flake3Dir/flake.lock) =~ flake7 ]]
# Test git+file with bare repo.
rm -rf $flakeGitBare
git clone --bare $flake1Dir $flakeGitBare
nix build -o $TEST_ROOT/result git+file://$flakeGitBare
# Test path flakes.
mkdir -p $flake5Dir
writeDependentFlake $flake5Dir
nix flake lock path://$flake5Dir
# Test tarball flakes.
tar cfz $TEST_ROOT/flake.tar.gz -C $TEST_ROOT flake5
nix build -o $TEST_ROOT/result file://$TEST_ROOT/flake.tar.gz
# Building with a tarball URL containing a SRI hash should also work.
url=$(nix flake metadata --json file://$TEST_ROOT/flake.tar.gz | jq -r .url)
[[ $url =~ sha256- ]]
nix build -o $TEST_ROOT/result $url
# Building with an incorrect SRI hash should fail.
nix build -o $TEST_ROOT/result "file://$TEST_ROOT/flake.tar.gz?narHash=sha256-qQ2Zz4DNHViCUrp6gTS7EE4+RMqFQtUfWF2UNUtJKS0=" 2>&1 | grep 'NAR hash mismatch'
# Test --override-input.
git -C $flake3Dir reset --hard
nix flake lock $flake3Dir --override-input flake2/flake1 file://$TEST_ROOT/flake.tar.gz -vvvvv
[[ $(jq .nodes.flake1_2.locked.url $flake3Dir/flake.lock) =~ flake.tar.gz ]]
nix flake lock $flake3Dir --override-input flake2/flake1 flake1
[[ $(jq -r .nodes.flake1_2.locked.rev $flake3Dir/flake.lock) =~ $hash2 ]]
nix flake lock $flake3Dir --override-input flake2/flake1 flake1/master/$hash1
[[ $(jq -r .nodes.flake1_2.locked.rev $flake3Dir/flake.lock) =~ $hash1 ]]
# Test --update-input.
nix flake lock $flake3Dir
[[ $(jq -r .nodes.flake1_2.locked.rev $flake3Dir/flake.lock) = $hash1 ]]
nix flake lock $flake3Dir --update-input flake2/flake1
[[ $(jq -r .nodes.flake1_2.locked.rev $flake3Dir/flake.lock) =~ $hash2 ]]
# Test 'nix flake metadata --json'.
nix flake metadata $flake3Dir --json | jq .
# Test flake in store does not evaluate.
rm -rf $badFlakeDir
mkdir $badFlakeDir
echo INVALID > $badFlakeDir/flake.nix
nix store delete $(nix store add-path $badFlakeDir)
[[ $(nix path-info $(nix store add-path $flake1Dir)) =~ flake1 ]]
[[ $(nix path-info path:$(nix store add-path $flake1Dir)) =~ simple ]]
# Test fetching flakerefs in the legacy CLI.
[[ $(nix-instantiate --eval flake:flake3 -A x) = 123 ]]
[[ $(nix-instantiate --eval flake:git+file://$flake3Dir -A x) = 123 ]]
[[ $(nix-instantiate -I flake3=flake:flake3 --eval '<flake3>' -A x) = 123 ]]
[[ $(NIX_PATH=flake3=flake:flake3 nix-instantiate --eval '<flake3>' -A x) = 123 ]]