nixpkgs/pkgs/development/compilers/ghcjs-ng/mk-stage0.nix

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2018-05-12 05:06:47 +00:00
{ configuredSrc
, runCommand
, cabal2nix
, yq
}:
runCommand "stage0.nix" {
buildInputs = [cabal2nix yq];
} ''
(
printf '{ callPackage, configuredSrc }:\n\n{\n\n'
yq '.packages | .[]' ${configuredSrc}/stack.yaml -r | sed 's|^\.$|./.|' | sed 's|^\.||' | while read f; do
printf ' %s = callPackage\n' \
"$(find ${configuredSrc}/$f -name "*.cabal" -maxdepth 1 \
| xargs basename \
| sed 's/.cabal$//')"
printf '(%s) {};' \
"$(cabal2nix ${configuredSrc}/$f \
| sed 's|${configuredSrc}/|configuredSrc + |g')" \
| sed 's/^/ /'
printf '\n\n'
done
printf '}\n'
) > $out
''