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Merge pull request #4056 from tweag/non-ca-depending-on-ca

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Allow non-CA derivations to depend on CA ones
This commit is contained in:
Eelco Dolstra 2020-10-27 17:38:29 +01:00 • committed by GitHub
commit 02a1facbdc
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8 changed files with 161 additions and 37 deletions
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11
tests/content-addressed.nix
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@ -15,7 +15,7 @@ rec {
'';
};
rootCA = mkDerivation {
name = "dependent";
name = "rootCA";
outputs = [ "out" "dev" ];
buildCommand = ''
echo "building a CA derivation"
@ -51,4 +51,13 @@ rec {
outputHashMode = "recursive";
outputHashAlgo = "sha256";
};
dependentNonCA = mkDerivation {
name = "dependent-non-ca";
buildCommand = ''
echo "Didn't cut-off"
echo "building dependent-non-ca"
mkdir -p $out
echo ${rootCA}/non-ca-hello > $out/dep
'';
};
}

54
tests/content-addressed.sh
View file

@ -5,23 +5,49 @@ source common.sh
drv=$(nix-instantiate --experimental-features ca-derivations ./content-addressed.nix -A rootCA --arg seed 1)
nix --experimental-features 'nix-command ca-derivations' show-derivation --derivation "$drv" --arg seed 1
testDerivation () {
buildAttr () {
local derivationPath=$1
local commonArgs=("--experimental-features" "ca-derivations" "./content-addressed.nix" "-A" "$derivationPath" "--no-out-link")
shift
local args=("--experimental-features" "ca-derivations" "./content-addressed.nix" "-A" "$derivationPath" "--no-out-link")
args+=("$@")
nix-build "${args[@]}"
}
testRemoteCache () {
clearCache
local outPath=$(buildAttr dependentNonCA)
nix copy --to file://$cacheDir $outPath
clearStore
buildAttr dependentNonCA --option substituters file://$cacheDir --no-require-sigs |& (! grep "building dependent-non-ca")
}
testDeterministicCA () {
[[ $(buildAttr rootCA) = $(buildAttr rootCA) ]]
}
testCutoffFor () {
local out1 out2
out1=$(nix-build "${commonArgs[@]}" --arg seed 1)
out2=$(nix-build "${commonArgs[@]}" --arg seed 2 "${secondSeedArgs[@]}")
out1=$(buildAttr $1)
# The seed only changes the root derivation, and not it's output, so the
# dependent derivations should only need to be built once.
out2=$(buildAttr $1 -j0)
test "$out1" == "$out2"
}
testDerivation rootCA
# The seed only changes the root derivation, and not it's output, so the
# dependent derivations should only need to be built once.
secondSeedArgs=(-j0)
# Don't directly build depenentCA, that way we'll make sure we dodn't rely on
# dependent derivations always being already built.
#testDerivation dependentCA
testDerivation transitivelyDependentCA
testCutoff () {
# Don't directly build depenentCA, that way we'll make sure we dodn't rely on
# dependent derivations always being already built.
#testDerivation dependentCA
testCutoffFor transitivelyDependentCA
testCutoffFor dependentNonCA
}
nix-instantiate --experimental-features ca-derivations ./content-addressed.nix -A rootCA --arg seed 5
nix-collect-garbage --experimental-features ca-derivations --option keep-derivations true
testGC () {
nix-instantiate --experimental-features ca-derivations ./content-addressed.nix -A rootCA --arg seed 5
nix-collect-garbage --experimental-features ca-derivations --option keep-derivations true
}
testRemoteCache
testDeterministicCA
testCutoff
testGC