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infinisil/default.nix

Created January 4, 2018 09:22
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default.nix
with import <nixpkgs> {};
let
# an arbitrary derivation with some files in $out
foo = runCommand "foo" {} ''
mkdir $out
echo a > $out/a
echo b > $out/b
echo c > $out/c
'';
bar = runCommand "bar" {} ''
mkdir $out
# link everything from foo to bar
ln -vs ${foo}/* $out
# but change one file
rm $out/b
echo newb > $out/b
'';
in bar
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