d3e4f784aa
Previously, setting environment variables in a Haskell package build required using `.overrideAttrs`, which (I think?) breaks later invocations of `haskell.lib.overrideCabal`. This patch adds an `env` argument to `haskellPackages.mkDerivation`, which can be used to set environment variables during Haskell package builds.
56 lines
1.0 KiB
Nix
56 lines
1.0 KiB
Nix
{
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lib,
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haskellPackages,
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}:
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let
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withEnv =
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env:
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haskellPackages.mkDerivation {
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pname = "puppy";
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version = "1.0.0";
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src = null;
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license = null;
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inherit env;
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};
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failures = lib.runTests {
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testCanSetEnv = {
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expr =
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(withEnv {
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PUPPY = "DOGGY";
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}).drvAttrs.PUPPY;
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expected = "DOGGY";
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};
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testCanSetEnvMultiple = {
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expr =
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let
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env =
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(withEnv {
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PUPPY = "DOGGY";
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SILLY = "GOOFY";
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}).drvAttrs;
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in
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{
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inherit (env) PUPPY SILLY;
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};
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expected = {
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PUPPY = "DOGGY";
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SILLY = "GOOFY";
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};
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};
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testCanSetEnvPassthru = {
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expr =
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(withEnv {
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PUPPY = "DOGGY";
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}).passthru.env.PUPPY;
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expected = "DOGGY";
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};
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};
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in
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# TODO: Use `lib.debug.throwTestFailures`: https://github.com/NixOS/nixpkgs/pull/416207
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lib.optional (failures != [ ]) (throw "${lib.generators.toPretty { } failures}")
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