Switch to flake
This commit is contained in:
parent
9d479c44ca
commit
b31f03679b
GPG key ID:
8D3C82F9F309F8EC
68
flake.lock
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68
flake.lock
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@ -0,0 +1,68 @@
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{
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"nodes": {
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"flake-utils": {
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"locked": {
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"lastModified": 1659877975,
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"narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
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"owner": "numtide",
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"repo": "flake-utils",
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"rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
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"type": "github"
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},
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"original": {
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"owner": "numtide",
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"repo": "flake-utils",
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"type": "github"
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}
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},
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"nixpkgs": {
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"locked": {
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"lastModified": 1662019588,
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"narHash": "sha256-oPEjHKGGVbBXqwwL+UjsveJzghWiWV0n9ogo1X6l4cw=",
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"owner": "nixos",
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"repo": "nixpkgs",
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"rev": "2da64a81275b68fdad38af669afeda43d401e94b",
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"type": "github"
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},
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"original": {
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"owner": "nixos",
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"ref": "nixos-unstable",
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"repo": "nixpkgs",
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"type": "github"
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}
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},
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"pre-commit-hooks": {
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"inputs": {
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"flake-utils": [
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"flake-utils"
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],
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"nixpkgs": [
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"nixpkgs"
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]
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},
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"locked": {
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"lastModified": 1660830093,
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"narHash": "sha256-HUhx3a82C7bgp2REdGFeHJdhEAzMGCk3V8xIvfBqg1I=",
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"owner": "cachix",
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"repo": "pre-commit-hooks.nix",
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"rev": "8cb8ea5f1c7bc2984f460587fddd5f2e558f6eb8",
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"type": "github"
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},
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"original": {
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"owner": "cachix",
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"ref": "master",
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"repo": "pre-commit-hooks.nix",
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"type": "github"
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}
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},
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"root": {
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"inputs": {
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"flake-utils": "flake-utils",
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"nixpkgs": "nixpkgs",
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"pre-commit-hooks": "pre-commit-hooks"
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}
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}
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},
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"root": "root",
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"version": 7
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}
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38
flake.nix
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38
flake.nix
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{
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inputs = {
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flake-utils.url = "github:numtide/flake-utils";
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nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
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pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix/master";
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pre-commit-hooks.inputs.flake-utils.follows = "flake-utils";
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pre-commit-hooks.inputs.nixpkgs.follows = "nixpkgs";
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};
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outputs = { self, flake-utils, nixpkgs, pre-commit-hooks }: flake-utils.lib.eachDefaultSystem (system:
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let
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pkgs = import nixpkgs { inherit system; };
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in
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{
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checks = {
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pre-commit-check = pre-commit-hooks.lib.${system}.run {
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src = self;
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hooks = {
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black.enable = true;
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nixpkgs-fmt.enable = true;
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shellcheck.enable = true;
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};
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};
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};
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devShells.default = pkgs.mkShell {
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buildInputs = (with pkgs; [
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nixpkgs-fmt
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black
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shellcheck
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]);
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shellHook = self.checks.${system}.pre-commit-check.shellHook;
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};
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});
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}
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{
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"nixpkgs": {
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"branch": "nixos-20.09",
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"description": "Nix Packages collection",
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"homepage": "",
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "42809feaa9f7474f5566a5c6e8e317e15e39160e",
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"sha256": "12cnyxx316pwhw069brqsx8v23b10akqlf0vhkilaimsksv7cwgm",
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"type": "tarball",
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"url": "https://github.com/NixOS/nixpkgs/archive/42809feaa9f7474f5566a5c6e8e317e15e39160e.tar.gz",
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"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
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},
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"pre-commit-hooks.nix": {
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"branch": "master",
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"description": "Seamless integration of https://pre-commit.com git hooks with Nix.",
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"homepage": "",
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"owner": "cachix",
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"repo": "pre-commit-hooks.nix",
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"rev": "431227b41d0aaa83fabdee6611e145b7d9bd150b",
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"sha256": "0ff24n8i3mfw0jw5r5lsgvbahmh88zhi3qsk9yxrb8x82jprgzsy",
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"type": "tarball",
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"url": "https://github.com/cachix/pre-commit-hooks.nix/archive/431227b41d0aaa83fabdee6611e145b7d9bd150b.tar.gz",
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"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
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}
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}
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149
nix/sources.nix
149
nix/sources.nix
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@ -1,149 +0,0 @@
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# This file has been generated by Niv.
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let
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#
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# The fetchers. fetch_<type> fetches specs of type <type>.
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#
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fetch_file = pkgs: spec:
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if spec.builtin or true then
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builtins_fetchurl { inherit (spec) url sha256; }
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else
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pkgs.fetchurl { inherit (spec) url sha256; };
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fetch_tarball = pkgs: name: spec:
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let
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ok = str: ! builtins.isNull (builtins.match "[a-zA-Z0-9+-._?=]" str);
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# sanitize the name, though nix will still fail if name starts with period
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name' = stringAsChars (x: if ! ok x then "-" else x) "${name}-src";
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in
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if spec.builtin or true then
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builtins_fetchTarball { name = name'; inherit (spec) url sha256; }
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else
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pkgs.fetchzip { name = name'; inherit (spec) url sha256; };
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fetch_git = spec:
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builtins.fetchGit { url = spec.repo; inherit (spec) rev ref; };
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fetch_local = spec: spec.path;
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fetch_builtin-tarball = name: throw
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''[${name}] The niv type "builtin-tarball" is deprecated. You should instead use `builtin = true`.
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$ niv modify ${name} -a type=tarball -a builtin=true'';
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fetch_builtin-url = name: throw
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''[${name}] The niv type "builtin-url" will soon be deprecated. You should instead use `builtin = true`.
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$ niv modify ${name} -a type=file -a builtin=true'';
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#
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# Various helpers
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#
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# The set of packages used when specs are fetched using non-builtins.
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mkPkgs = sources:
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let
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sourcesNixpkgs =
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import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) { };
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hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
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hasThisAsNixpkgsPath = <nixpkgs> == ./.;
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in
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if builtins.hasAttr "nixpkgs" sources
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then sourcesNixpkgs
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else if hasNixpkgsPath && ! hasThisAsNixpkgsPath then
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import <nixpkgs> { }
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else
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abort
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''
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Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
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add a package called "nixpkgs" to your sources.json.
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'';
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# The actual fetching function.
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fetch = pkgs: name: spec:
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if ! builtins.hasAttr "type" spec then
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abort "ERROR: niv spec ${name} does not have a 'type' attribute"
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else if spec.type == "file" then fetch_file pkgs spec
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else if spec.type == "tarball" then fetch_tarball pkgs name spec
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else if spec.type == "git" then fetch_git spec
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else if spec.type == "local" then fetch_local spec
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else if spec.type == "builtin-tarball" then fetch_builtin-tarball name
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else if spec.type == "builtin-url" then fetch_builtin-url name
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else
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abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
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# If the environment variable NIV_OVERRIDE_${name} is set, then use
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# the path directly as opposed to the fetched source.
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replace = name: drv:
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let
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saneName = stringAsChars (c: if isNull (builtins.match "[a-zA-Z0-9]" c) then "_" else c) name;
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ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}";
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in
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if ersatz == "" then drv else ersatz;
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# Ports of functions for older nix versions
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# a Nix version of mapAttrs if the built-in doesn't exist
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mapAttrs = builtins.mapAttrs or (
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f: set: with builtins;
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listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set))
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);
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# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
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range = first: last: if first > last then [ ] else builtins.genList (n: first + n) (last - first + 1);
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# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257
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stringToCharacters = s: map (p: builtins.substring p 1 s) (range 0 (builtins.stringLength s - 1));
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# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269
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stringAsChars = f: s: concatStrings (map f (stringToCharacters s));
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concatStrings = builtins.concatStringsSep "";
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# fetchTarball version that is compatible between all the versions of Nix
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builtins_fetchTarball = { url, name, sha256 }@attrs:
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let
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inherit (builtins) lessThan nixVersion fetchTarball;
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in
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if lessThan nixVersion "1.12" then
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fetchTarball { inherit name url; }
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else
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fetchTarball attrs;
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# fetchurl version that is compatible between all the versions of Nix
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builtins_fetchurl = { url, sha256 }@attrs:
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let
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inherit (builtins) lessThan nixVersion fetchurl;
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in
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if lessThan nixVersion "1.12" then
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fetchurl { inherit url; }
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else
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fetchurl attrs;
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# Create the final "sources" from the config
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mkSources = config:
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mapAttrs
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(
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name: spec:
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if builtins.hasAttr "outPath" spec
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then
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abort
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"The values in sources.json should not have an 'outPath' attribute"
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else
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spec // { outPath = replace name (fetch config.pkgs name spec); }
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)
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config.sources;
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# The "config" used by the fetchers
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mkConfig =
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{ sourcesFile ? if builtins.pathExists ./sources.json then ./sources.json else null
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, sources ? if isNull sourcesFile then { } else builtins.fromJSON (builtins.readFile sourcesFile)
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, pkgs ? mkPkgs sources
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}: rec {
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# The sources, i.e. the attribute set of spec name to spec
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inherit sources;
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# The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
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inherit pkgs;
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};
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in
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mkSources (mkConfig { }) // { __functor = _: settings: mkSources (mkConfig settings); }
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@ -1,11 +0,0 @@
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let
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nix-pre-commit-hooks = import (import ./nix/sources.nix)."pre-commit-hooks.nix";
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in
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nix-pre-commit-hooks.run {
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src = ./.;
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hooks = {
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black.enable = true;
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nixpkgs-fmt.enable = true;
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shellcheck.enable = true;
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};
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}
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