lix/tests/impure-derivations.nix

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with import ./config.nix;
rec {
impure = mkDerivation {
name = "impure";
outputs = [ "out" "stuff" ];
buildCommand =
''
echo impure
x=$(< $TEST_ROOT/counter)
mkdir $out $stuff
echo $x > $out/n
ln -s $out/n $stuff/bla
printf $((x + 1)) > $TEST_ROOT/counter
'';
__impure = true;
impureEnvVars = [ "TEST_ROOT" ];
};
impureOnImpure = mkDerivation {
name = "impure-on-impure";
buildCommand =
''
echo impure-on-impure
x=$(< ${impure}/n)
mkdir $out
printf X$x > $out/n
ln -s ${impure.stuff} $out/symlink
ln -s $out $out/self
'';
__impure = true;
};
# This is not allowed.
inputAddressed = mkDerivation {
name = "input-addressed";
buildCommand =
''
cat ${impure} > $out
'';
};
contentAddressed = mkDerivation {
name = "content-addressed";
buildCommand =
''
echo content-addressed
x=$(< ${impureOnImpure}/n)
printf ''${x:0:1} > $out
'';
outputHashMode = "recursive";
outputHash = "sha256-eBYxcgkuWuiqs4cKNgKwkb3vY/HR0vVsJnqe8itJGcQ=";
};
inputAddressedAfterCA = mkDerivation {
name = "input-addressed-after-ca";
buildCommand =
''
cat ${contentAddressed} > $out
'';
};
}