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CA derivations that depend on other CA derivations

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Co-authored-by: Théophane Hufschmitt <regnat@users.noreply.github.com>
This commit is contained in:
John Ericson 2020-08-22 20:44:47 +00:00
parent e0b0e18905
commit 8eb73a8724
6 changed files with 189 additions and 28 deletions
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48
tests/content-addressed.nix
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@ -4,16 +4,40 @@ with import ./config.nix;
# A simple content-addressed derivation.
# The derivation can be arbitrarily modified by passing a different `seed`,
# but the output will always be the same
mkDerivation {
name = "simple-content-addressed";
buildCommand = ''
set -x
echo "Building a CA derivation"
echo "The seed is ${toString seed}"
mkdir -p $out
echo "Hello World" > $out/hello
'';
__contentAddressed = true;
outputHashMode = "recursive";
outputHashAlgo = "sha256";
rec {
root = mkDerivation {
name = "simple-content-addressed";
buildCommand = ''
set -x
echo "Building a CA derivation"
echo "The seed is ${toString seed}"
mkdir -p $out
echo "Hello World" > $out/hello
'';
__contentAddressed = true;
outputHashMode = "recursive";
outputHashAlgo = "sha256";
};
dependent = mkDerivation {
name = "dependent";
buildCommand = ''
echo "building a dependent derivation"
mkdir -p $out
echo ${root}/hello > $out/dep
'';
__contentAddressed = true;
outputHashMode = "recursive";
outputHashAlgo = "sha256";
};
transitivelyDependent = mkDerivation {
name = "transitively-dependent";
buildCommand = ''
echo "building transitively-dependent"
cat ${dependent}/dep
echo ${dependent} > $out
'';
__contentAddressed = true;
outputHashMode = "recursive";
outputHashAlgo = "sha256";
};
}

20
tests/content-addressed.sh
View file

@ -2,15 +2,17 @@
source common.sh
clearStore
clearCache
export REMOTE_STORE=file://$cacheDir
drv=$(nix-instantiate --experimental-features ca-derivations ./content-addressed.nix --arg seed 1)
drv=$(nix-instantiate --experimental-features ca-derivations ./content-addressed.nix -A root --arg seed 1)
nix --experimental-features 'nix-command ca-derivations' show-derivation --derivation "$drv" --arg seed 1
out1=$(nix-build --experimental-features ca-derivations ./content-addressed.nix --arg seed 1 --no-out-link)
out2=$(nix-build --experimental-features ca-derivations ./content-addressed.nix --arg seed 2 --no-out-link)
testDerivation () {
local derivationPath=$1
local commonArgs=("--experimental-features" "ca-derivations" "./content-addressed.nix" "-A" "$derivationPath" "--no-out-link")
local out1=$(nix-build "${commonArgs[@]}" --arg seed 1)
local out2=$(nix-build "${commonArgs[@]}" --arg seed 2)
test $out1 == $out2
}
test $out1 == $out2
testDerivation root
testDerivation dependent
testDerivation transitivelyDependent