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|
{
lib,
stdenv,
fetchurl,
}:
{
pkg,
version,
sha256,
meta ? { },
}:
stdenv.mkDerivation {
pname = pkg;
inherit version;
dontBuild = true;
dontConfigure = true;
dontFixup = true;
src = fetchurl {
url = "https://repo.hex.pm/tarballs/${pkg}-${version}.tar";
inherit sha256;
};
unpackCmd = ''
tar -xf $curSrc contents.tar.gz CHECKSUM metadata.config
mkdir contents
tar -C contents -xzf contents.tar.gz
mv metadata.config contents/hex_metadata.config
# To make the extracted hex tarballs appear legitimate to mix, we need to
# make sure they contain not just the contents of contents.tar.gz but also
# a .hex file with some lock metadata.
# We use an old version of .hex file per hex's mix_task_test.exs since it
# is just plain-text instead of an encoded format.
# See: https://github.com/hexpm/hex/blob/main/test/hex/mix_task_test.exs#L410
echo -n "${pkg},${version},$(cat CHECKSUM | tr '[:upper:]' '[:lower:]'),hexpm" > contents/.hex
'';
installPhase = ''
runHook preInstall
mkdir "$out"
cp -Hrt "$out" .
success=1
runHook postInstall
'';
inherit meta;
}
|
