63 lines
2.2 KiB
Nix
63 lines
2.2 KiB
Nix
{
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description = "A naersk based rust flake";
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inputs = {
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utils.url = "github:numtide/flake-utils";
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naersk = {
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url = "github:nmattia/naersk";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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index = {
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flake = false;
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url = "github:rust-lang/crates.io-index";
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};
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};
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outputs = { self, nixpkgs, utils, naersk, index }:
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let
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crate = self.lib.crate "bat";
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pname = crate.latest.name;
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forPkgs = pkgs:
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rec {
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# # `nix build`
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# packages.${pname} = crate.latest.package { inherit pkgs; };
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# # `nix run`
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# apps.${pname} = utils.lib.mkApp {
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# drv = packages.${pname};
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# };
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# defaultApp = apps.${pname};
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};
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forSystem = system: forPkgs nixpkgs.legacyPackages."${system}";
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in
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(utils.lib.eachDefaultSystem forSystem) // {
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lib = rec {
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config = builtins.fromJSON (builtins.readFile "${index}/config.json");
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crate = name:
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let
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dbg = val: builtins.trace val val;
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strlen = builtins.stringLength;
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substr = builtins.substring;
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path = if strlen name < 4 then "${toString (strlen name)}/${substr 0 1 name}/${name}" else "${substr 0 2 name}/${substr 2 2 name}/${name}";
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build = meta: extra @ { pkgs, ... }:
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let naersk-lib = naersk.lib."${pkgs.system}"; in
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naersk-lib.buildPackage ((builtins.removeAttrs extra [ "pkgs" ]) // {
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root = pkgs.runCommandLocal "unpack-${name}" { buildInputs = [ pkgs.coreutils ]; } ''
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mkdir -p $out
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tar xvf ${meta.tarball} -C $out --strip-components=1
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'';
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});
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versions = builtins.foldl'
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(p: i:
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let meta = i // rec { url = "${config.dl}/${name}/${i.vers}/download"; package = build meta; tarball = builtins.fetchurl { inherit url; sha256 = i.cksum; }; }; in
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p // { latest = meta; "${i.vers}" = meta; }
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)
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{ }
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(map builtins.fromJSON (builtins.filter (s: builtins.isString s && strlen s > 0) (builtins.split "\n" (builtins.readFile "${index}/${path}"))));
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in
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versions;
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};
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};
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}
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