50 lines
1.2 KiB
Nix
50 lines
1.2 KiB
Nix
{
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pkgs,
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lib,
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linkFarm,
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writeText,
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...
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}: let
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inherit (builtins) split elemAt fetchurl toJSON hashString baseNameOf;
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inherit (lib) flatten mapAttrsToList importJSON;
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inherit (lib.strings) sanitizeDerivationName;
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# https://deno.land/std@0.118.0/fmt/colors.ts
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#
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# 0. "https"
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# 1. "deno.land"
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# 2. "/std@0.118.0/fmt/colors.ts"
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urlPart = url: elemAt (flatten (split "://([a-z0-9\.]*)" url));
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# https://deno.land/std@0.118.0/fmt/colors.ts
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#
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# https/deno.land/<sha256 "/std@0.118.0/fmt/colors.ts">
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artifactPath = url: let up = urlPart url; in "${up 0}/${up 1}/${hashString "sha256" (up 2)}";
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in {
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mkDepsLink = lockfile: (
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linkFarm "deps" (flatten (
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mapAttrsToList
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(
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url: sha256: let
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in [
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{
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name = artifactPath url;
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path = fetchurl {
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inherit url sha256;
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name = sanitizeDerivationName (baseNameOf url);
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};
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}
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{
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name = artifactPath url + ".metadata.json";
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path = writeText "metadata.json" (toJSON {
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inherit url;
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headers = {};
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});
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}
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]
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)
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(importJSON lockfile)
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))
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);
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}
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