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https://github.com/oxalica/rust-overlay.git
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305d3b088e
This allows construction of `rust-bin` attrset on an existing `pkgs`, instead of staging another overlayed nixpkgs. This can reduce redundant evaluation of nixpkgs for flake-heavy users who also don't like or cannot (due to flake dependency hell) manually instantiate nixpkgs.
73 lines
2.5 KiB
Nix
73 lines
2.5 KiB
Nix
# Overlay interface for non-flake Nix.
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final: prev:
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let
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inherit (builtins) mapAttrs readFile;
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inherit (final) lib rust-bin;
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inherit (rust-bin._internal) toolchainFromManifest selectManifest;
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# Same as `toolchainFromManifest` but read from a manifest file.
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toolchainFromManifestFile = path: toolchainFromManifest (fromTOML (readFile path));
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# Override all pkgs of a toolchain set.
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overrideToolchain = attrs: mapAttrs (name: pkg: pkg.override attrs);
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# This is eagerly evaluated and disallow overriding. Get this from `final`
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# will easily encounter infinite recursion without manually expand all attrs
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# from `rust-bin.nix` output like `mkIf` does.
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# This is considered internal anyway.
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manifests = import ./lib/manifests.nix {
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inherit lib;
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inherit (rust-bin) distRoot;
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};
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in {
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rust-bin = (prev.rust-bin or { }) // {
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# The overridable dist url for fetching.
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distRoot = import ./lib/dist-root.nix;
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} // import ./lib/rust-bin.nix {
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inherit lib manifests;
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inherit (final.rust) toRustTarget;
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inherit (rust-bin) nightly;
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pkgs = final;
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};
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# All attributes below are for compatibility with mozilla overlay.
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lib = (prev.lib or { }) // {
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rustLib = (prev.lib.rustLib or { }) // {
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manifest_v2_url = throw ''
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`manifest_v2_url` is not supported.
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Select a toolchain from `rust-bin` or using `rustChannelOf` instead.
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See also README at https://github.com/oxalica/rust-overlay
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'';
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fromManifest = throw ''
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`fromManifest` is not supported due to network access during evaluation.
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Select a toolchain from `rust-bin` or using `rustChannelOf` instead.
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See also README at https://github.com/oxalica/rust-overlay
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'';
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fromManifestFile = manifestFilePath: { stdenv, fetchurl, patchelf }@deps: builtins.trace ''
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`fromManifestFile` is deprecated.
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Select a toolchain from `rust-bin` or using `rustChannelOf` instead.
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See also README at https://github.com/oxalica/rust-overlay
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'' (overrideToolchain deps (toolchainFromManifestFile manifestFilePath));
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};
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};
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rustChannelOf = manifestArgs: toolchainFromManifest (selectManifest manifestArgs);
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latest = (prev.latest or {}) // {
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rustChannels = {
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stable = rust-bin.stable.latest;
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beta = rust-bin.beta.latest;
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nightly = rust-bin.nightly.latest;
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};
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};
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rustChannelOfTargets = channel: date: targets:
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(final.rustChannelOf { inherit channel date; })
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.rust.override { inherit targets; };
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rustChannels = final.latest.rustChannels;
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}
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