cc22cf662b
When computing a lock file, we now respect the lock files of flake
inputs. This is important for usability / reproducibility. For
example, the 'nixops' flake depends on the 'nixops-aws' and
'nixops-hetzner' repositories. So when the 'nixops' flake is used in
another flake, we want the versions of 'nixops-aws' and
'nixops-hetzner' locked by the the 'nixops' flake because those
presumably have been tested.
This can lead to a proliferation of versions of flakes like 'nixpkgs'
(since every flake's lock file could depend on a different version of
'nixpkgs'). This is not a major issue when using Nixpkgs overlays or
NixOS modules, since then the top-level flake composes those
overlays/modules into *its* version of Nixpkgs and all other versions
are ignored. Lock file computation has been made a bit more lazy so it
won't try to fetch all those versions of 'nixpkgs'.
However, in case it's necessary to minimize flake versions, there now
are two input attributes that allow this. First, you can copy an input
from another flake, as follows:
inputs.nixpkgs.follows = "dwarffs/nixpkgs";
This states that the calling flake's 'nixpkgs' input shall be the same
as the 'nixpkgs' input of the 'dwarffs' input.
Second, you can override inputs of inputs:
inputs.nixpkgs.url = github:edolstra/nixpkgs/<hash>;
inputs.nixops.inputs.nixpkgs.url = github:edolstra/nixpkgs/<hash>;
or equivalently, using 'follows':
inputs.nixpkgs.url = github:edolstra/nixpkgs/<hash>;
inputs.nixops.inputs.nixpkgs.follows = "nixpkgs";
This states that the 'nixpkgs' input of the 'nixops' input shall be
the same as the calling flake's 'nixpkgs' input.
Finally, at '-v' Nix now prints the changes to the lock file, e.g.
$ nix flake update ~/Misc/eelco-configurations/hagbard
inputs of flake 'git+file:///home/eelco/Misc/eelco-configurations?subdir=hagbard' changed:
updated 'nixpkgs': 'github:edolstra/nixpkgs/7845bf5f4b3013df1cf036e9c9c3a55a30331db9' -> 'github:edolstra/nixpkgs/03f3def66a104a221aac8b751eeb7075374848fd'
removed 'nixops'
removed 'nixops/nixops-aws'
removed 'nixops/nixops-hetzner'
removed 'nixops/nixpkgs'
522 lines
13 KiB
Bash
522 lines
13 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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clearStore
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rm -rf $TEST_HOME/.cache $TEST_HOME/.config
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registry=$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=$TEST_ROOT/flake3
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flake4Dir=$TEST_ROOT/flake4
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flake7Dir=$TEST_ROOT/flake7
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nonFlakeDir=$TEST_ROOT/nonFlake
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for repo in $flake1Dir $flake2Dir $flake3Dir $flake7Dir $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 > $flake1Dir/flake.nix <<EOF
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{
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edition = 201909;
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description = "Bla bla";
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outputs = inputs: rec {
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packages.$system.foo = import ./simple.nix;
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defaultPackage.$system = packages.$system.foo;
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# To test "nix flake init".
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legacyPackages.x86_64-linux.hello = import ./simple.nix;
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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 > $flake2Dir/flake.nix <<EOF
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{
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edition = 201909;
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description = "Fnord";
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outputs = { self, flake1 }: rec {
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packages.$system.bar = flake1.packages.$system.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 > $flake3Dir/flake.nix <<EOF
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{
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edition = 201909;
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description = "Fnord";
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outputs = { self, flake2 }: rec {
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packages.$system.xyzzy = flake2.packages.$system.bar;
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checks = {
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xyzzy = packages.$system.xyzzy;
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};
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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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FNORD
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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 > $registry <<EOF
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{
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"flakes": {
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"flake:flake1": {
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"url": "git+file://$flake1Dir"
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},
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"flake:flake2": {
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"url": "git+file://$flake2Dir"
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},
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"flake:flake3": {
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"url": "git+file://$flake3Dir"
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},
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"flake:flake4": {
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"url": "flake:flake3"
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},
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"flake:nixpkgs": {
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"url": "flake: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) == 5 ))
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# Test 'nix flake info'.
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nix flake info --flake-registry $registry flake1 | grep -q 'URL: .*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 'URL: .*flake1.*'
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(cd $flake1Dir && nix flake info --flake-registry $registry .) | grep -q 'URL: .*flake1.*'
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nix flake info --flake-registry $registry $flake1Dir | grep -q 'URL: .*flake1.*'
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# Test 'nix flake info --json'.
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json=$(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 $registry git+file://$flake1Dir
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# Check that store symlinks inside a flake are not interpreted as flakes.
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nix build -o $flake1Dir/result --flake-registry $registry git+file://$flake1Dir
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nix path-info $flake1Dir/result
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# Building a flake with an unlocked dependency should fail in pure mode.
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(! nix eval "(builtins.getFlake "$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 add 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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# Building with a lockfile should not require a fetch of the registry.
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nix build -o $TEST_ROOT/result --flake-registry file:///no-registry.json $flake2Dir#bar --tarball-ttl 0
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# Updating the flake should not change the lockfile.
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nix flake update --flake-registry $registry $flake2Dir
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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 $TEST_ROOT/result --flake-registry /no-registry git+file://$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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git -C $flake3Dir add flake.lock
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# Add dependency to flake3.
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rm $flake3Dir/flake.nix
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cat > $flake3Dir/flake.nix <<EOF
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{
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edition = 201909;
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description = "Fnord";
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outputs = { self, flake1, flake2 }: rec {
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packages.$system.xyzzy = flake2.packages.$system.bar;
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packages.$system."sth sth" = flake1.packages.$system.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 sth"
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake3Dir#"sth%20sth"
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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 add flake.lock
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git -C $flake3Dir commit -m 'Add lockfile'
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|
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# Unsupported editions should be an error.
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sed -i $flake3Dir/flake.nix -e s/201909/201912/
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake3Dir#sth 2>&1 | grep 'unsupported edition'
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# Test whether registry caching works.
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nix flake list --flake-registry file://$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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# FIXME: use tarballs rather than git.
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rm -rf $TEST_HOME/.cache
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_NIX_FORCE_HTTP=1 nix build -o $TEST_ROOT/result --flake-registry file://$registry git+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_FORCE_HTTP=1 nix build -o $TEST_ROOT/result --flake-registry file://$registry git+file://$flake2Dir#bar
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_NIX_FORCE_HTTP=1 nix build -o $TEST_ROOT/result --flake-registry file://$registry git+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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|
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cat > $flake3Dir/flake.nix <<EOF
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{
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edition = 201909;
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|
|
inputs = {
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|
flake1 = {};
|
|
flake2 = {};
|
|
nonFlake = {
|
|
url = git+file://$nonFlakeDir;
|
|
flake = false;
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|
};
|
|
};
|
|
|
|
description = "Fnord";
|
|
|
|
outputs = inputs: rec {
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|
packages.$system.xyzzy = inputs.flake2.packages.$system.bar;
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|
packages.$system.sth = inputs.flake1.packages.$system.foo;
|
|
packages.$system.fnord =
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|
with import ./config.nix;
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|
mkDerivation {
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|
inherit system;
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|
name = "fnord";
|
|
buildCommand = ''
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|
cat \${inputs.nonFlake}/README.md > \$out
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|
'';
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|
};
|
|
};
|
|
}
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|
EOF
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|
cp ./config.nix $flake3Dir
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git -C $flake3Dir add flake.nix config.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
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# nonFlakeInputs.
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nix build -o $TEST_ROOT/result --flake-registry $registry $flake3Dir#sth
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git -C $flake3Dir add flake.lock
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git -C $flake3Dir commit -m 'Update nonFlakeInputs'
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|
nix build -o $TEST_ROOT/result --flake-registry $registry flake3#fnord
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[[ $(cat $TEST_ROOT/result) = FNORD ]]
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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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mv $nonFlakeDir $nonFlakeDir.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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(! nix build -o $TEST_ROOT/result --flake-registry $registry flake3#fnord)
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|
mv $flake2Dir.tmp $flake2Dir
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mv $nonFlakeDir.tmp $nonFlakeDir
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nix build -o $TEST_ROOT/result --flake-registry $registry flake3#xyzzy flake3#fnord
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|
|
# Test doing multiple `lookupFlake`s
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nix build -o $TEST_ROOT/result --flake-registry $registry flake4#xyzzy
|
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|
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# Test 'nix flake update' and --override-flake.
|
|
nix flake update --flake-registry $registry $flake3Dir
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[[ -z $(git -C $flake3Dir diff master) ]]
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|
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nix flake update --flake-registry $registry $flake3Dir --recreate-lock-file --override-flake flake2 nixpkgs
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[[ ! -z $(git -C $flake3Dir diff master) ]]
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|
|
# Make branch "removeXyzzy" where flake3 doesn't have xyzzy anymore
|
|
git -C $flake3Dir checkout -b removeXyzzy
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|
rm $flake3Dir/flake.nix
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|
|
|
cat > $flake3Dir/flake.nix <<EOF
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|
{
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|
edition = 201909;
|
|
|
|
inputs = {
|
|
nonFlake = {
|
|
url = "$nonFlakeDir";
|
|
flake = false;
|
|
};
|
|
};
|
|
|
|
description = "Fnord";
|
|
|
|
outputs = { self, flake1, flake2, nonFlake }: rec {
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packages.$system.sth = flake1.packages.$system.foo;
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packages.$system.fnord =
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|
with import ./config.nix;
|
|
mkDerivation {
|
|
inherit system;
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|
name = "fnord";
|
|
buildCommand = ''
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|
cat \${nonFlake}/README.md > \$out
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'';
|
|
};
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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 'Remove packages.xyzzy'
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git -C $flake3Dir checkout master
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|
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# Test whether fuzzy-matching works for IsAlias
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(! nix build -o $TEST_ROOT/result --flake-registry $registry flake4/removeXyzzy#xyzzy)
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|
|
# Test whether fuzzy-matching works for IsGit
|
|
(! nix build -o $TEST_ROOT/result --flake-registry $registry flake4/removeXyzzy#xyzzy)
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nix build -o $TEST_ROOT/result --flake-registry $registry flake4/removeXyzzy#sth
|
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|
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# Testing the nix CLI
|
|
nix flake add --flake-registry $registry flake1 flake3
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(( $(nix flake list --flake-registry $registry | wc -l) == 6 ))
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nix flake pin --flake-registry $registry flake1
|
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(( $(nix flake list --flake-registry $registry | wc -l) == 6 ))
|
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nix flake remove --flake-registry $registry flake1
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(( $(nix flake list --flake-registry $registry | wc -l) == 5 ))
|
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|
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# Test 'nix flake init'.
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|
(cd $flake7Dir && nix flake init)
|
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git -C $flake7Dir add flake.nix
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nix flake --flake-registry $registry check $flake7Dir
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git -C $flake7Dir commit -m 'Initial'
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|
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# Test 'nix flake clone'.
|
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rm -rf $TEST_ROOT/flake1-v2
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nix flake clone --flake-registry $registry flake1 --dest $TEST_ROOT/flake1-v2
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[ -e $TEST_ROOT/flake1-v2/flake.nix ]
|
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|
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# More 'nix flake check' tests.
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|
cat > $flake3Dir/flake.nix <<EOF
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{
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edition = 201909;
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|
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outputs = { flake1, self }: {
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overlay = final: prev: {
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|
};
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|
};
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|
}
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|
EOF
|
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|
|
nix flake check --flake-registry $registry $flake3Dir
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|
|
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cat > $flake3Dir/flake.nix <<EOF
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|
{
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edition = 201909;
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|
|
|
outputs = { flake1, self }: {
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overlay = finalll: prev: {
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|
};
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|
};
|
|
}
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|
EOF
|
|
|
|
(! nix flake check --flake-registry $registry $flake3Dir)
|
|
|
|
cat > $flake3Dir/flake.nix <<EOF
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|
{
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|
edition = 201909;
|
|
|
|
outputs = { flake1, self }: {
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|
nixosModules.foo = {
|
|
a.b.c = 123;
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|
foo = true;
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|
};
|
|
};
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|
}
|
|
EOF
|
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|
|
nix flake check --flake-registry $registry $flake3Dir
|
|
|
|
cat > $flake3Dir/flake.nix <<EOF
|
|
{
|
|
edition = 201909;
|
|
|
|
outputs = { flake1, self }: {
|
|
nixosModules.foo = {
|
|
a.b.c = 123;
|
|
foo = assert false; true;
|
|
};
|
|
};
|
|
}
|
|
EOF
|
|
|
|
(! nix flake check --flake-registry $registry $flake3Dir)
|
|
|
|
cat > $flake3Dir/flake.nix <<EOF
|
|
{
|
|
edition = 201909;
|
|
|
|
outputs = { flake1, self }: {
|
|
nixosModule = { config, pkgs, ... }: {
|
|
a.b.c = 123;
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|
};
|
|
};
|
|
}
|
|
EOF
|
|
|
|
nix flake check --flake-registry $registry $flake3Dir
|
|
|
|
cat > $flake3Dir/flake.nix <<EOF
|
|
{
|
|
edition = 201909;
|
|
|
|
outputs = { flake1, self }: {
|
|
nixosModule = { config, pkgs }: {
|
|
a.b.c = 123;
|
|
};
|
|
};
|
|
}
|
|
EOF
|
|
|
|
(! nix flake check --flake-registry $registry $flake3Dir)
|
|
|
|
# Test 'follows' inputs.
|
|
cat > $flake3Dir/flake.nix <<EOF
|
|
{
|
|
edition = 201909;
|
|
|
|
inputs.foo.url = flake:flake1;
|
|
inputs.bar.follows = "foo";
|
|
|
|
outputs = { self, foo, bar }: {
|
|
};
|
|
}
|
|
EOF
|
|
|
|
nix flake update --flake-registry $registry $flake3Dir
|
|
[[ $(jq .inputs.foo.url $flake3Dir/flake.lock) = $(jq .inputs.bar.url $flake3Dir/flake.lock) ]]
|
|
|
|
cat > $flake3Dir/flake.nix <<EOF
|
|
{
|
|
edition = 201909;
|
|
|
|
inputs.bar.follows = "flake2/flake1";
|
|
|
|
outputs = { self, flake2, bar }: {
|
|
};
|
|
}
|
|
EOF
|
|
|
|
nix flake update --flake-registry $registry $flake3Dir
|
|
[[ $(jq .inputs.bar.url $flake3Dir/flake.lock) =~ flake1 ]]
|
|
|
|
cat > $flake3Dir/flake.nix <<EOF
|
|
{
|
|
edition = 201909;
|
|
|
|
inputs.bar.follows = "flake2";
|
|
|
|
outputs = { self, flake2, bar }: {
|
|
};
|
|
}
|
|
EOF
|
|
|
|
nix flake update --flake-registry $registry $flake3Dir
|
|
[[ $(jq .inputs.bar.url $flake3Dir/flake.lock) =~ flake2 ]]
|
|
|
|
# Test overriding inputs of inputs.
|
|
cat > $flake3Dir/flake.nix <<EOF
|
|
{
|
|
edition = 201909;
|
|
|
|
inputs.flake2.inputs.flake1.url = git+file://$flake7Dir;
|
|
|
|
outputs = { self, flake2 }: {
|
|
};
|
|
}
|
|
EOF
|
|
|
|
nix flake update --flake-registry $registry $flake3Dir
|
|
[[ $(jq .inputs.flake2.inputs.flake1.url $flake3Dir/flake.lock) =~ flake7 ]]
|
|
|
|
cat > $flake3Dir/flake.nix <<EOF
|
|
{
|
|
edition = 201909;
|
|
|
|
inputs.flake2.inputs.flake1.follows = "foo";
|
|
inputs.foo.url = git+file://$flake7Dir;
|
|
|
|
outputs = { self, flake2 }: {
|
|
};
|
|
}
|
|
EOF
|
|
|
|
nix flake update --flake-registry $registry $flake3Dir --recreate-lock-file
|
|
[[ $(jq .inputs.flake2.inputs.flake1.url $flake3Dir/flake.lock) =~ flake7 ]]
|