nix-super/tests/content-addressed.nix

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2020-08-07 22:09:26 +03:00
with import ./config.nix;
{ seed ? 0 }:
# A simple content-addressed derivation.
# The derivation can be arbitrarily modified by passing a different `seed`,
# but the output will always be the same
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";
};
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}