Simplify nix setup
Anders Christiansen Sørby
parent
7da59dcf33
commit
d6117e0b2e
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@ -1,42 +0,0 @@
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{ sources ? import ./sources.nix
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}:
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let
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# default nixpkgs
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pkgs = import sources.nixpkgs { };
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# gitignore.nix
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gitignoreSource = (import sources."gitignore.nix" { inherit (pkgs) lib; }).gitignoreSource;
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pre-commit-hooks = (import sources."pre-commit-hooks.nix");
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rust = (import ./rust.nix { inherit sources; });
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src = gitignoreSource ./..;
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in
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{
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inherit pkgs src;
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# provided by shell.nix
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devTools = with pkgs; with pre-commit-hooks; [
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niv wasm-pack wasmtime valgrind protobuf clang llvm rocksdb
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pre-commit nixpkgs-fmt nix-linter
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rust
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];
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# to be built by github actions
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ci = {
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pre-commit-check = pre-commit-hooks.run {
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inherit src;
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hooks = {
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shellcheck.enable = true;
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nixpkgs-fmt.enable = true;
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nix-linter.enable = true;
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cargo-check.enable = true;
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rustfmt.enable = true;
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clippy.enable = true;
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};
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# generated files
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excludes = [ "^nix/sources\.nix$" ];
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};
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};
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}
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10
nix/rust.nix
10
nix/rust.nix
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@ -1,10 +0,0 @@
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{ sources ? import ./sources.nix }:
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let
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pkgs =
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import sources.nixpkgs { overlays = [ (import sources.nixpkgs-mozilla) ]; };
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channel = "nightly";
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date = "2021-03-18";
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targets = [ "wasm32-unknown-unknown" "wasm32-wasi" ];
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chan = pkgs.rustChannelOfTargets channel date targets;
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in
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chan
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@ -1,50 +0,0 @@
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{
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"niv": {
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"branch": "master",
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"description": "Easy dependency management for Nix projects",
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"homepage": "https://github.com/nmattia/niv",
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"owner": "nmattia",
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"repo": "niv",
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"rev": "af958e8057f345ee1aca714c1247ef3ba1c15f5e",
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"sha256": "1qjavxabbrsh73yck5dcq8jggvh3r2jkbr6b5nlz5d9yrqm9255n",
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"type": "tarball",
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"url": "https://github.com/nmattia/niv/archive/af958e8057f345ee1aca714c1247ef3ba1c15f5e.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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"nixpkgs": {
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"branch": "release-20.03",
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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": "6d1a044fc9ff3cc96fca5fa3ba9c158522bbf2a5",
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"sha256": "07a3nyrj3pwl017ig0rbn5rbmbf14gl3vqggvkyrdby01726p5fg",
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"type": "tarball",
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"url": "https://github.com/NixOS/nixpkgs/archive/6d1a044fc9ff3cc96fca5fa3ba9c158522bbf2a5.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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"nixpkgs-mozilla": {
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"branch": "master",
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"description": "mozilla related nixpkgs (extends nixos/nixpkgs repo)",
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"homepage": "",
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"owner": "mozilla",
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"repo": "nixpkgs-mozilla",
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"rev": "8c007b60731c07dd7a052cce508de3bb1ae849b4",
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"sha256": "1zybp62zz0h077zm2zmqs2wcg3whg6jqaah9hcl1gv4x8af4zhs6",
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"type": "tarball",
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"url": "https://github.com/mozilla/nixpkgs-mozilla/archive/8c007b60731c07dd7a052cce508de3bb1ae849b4.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": "2d169bb1b23f3b71a894a66ea81f45c788943248",
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"sha256": "1iyvi56rzszwizq0ymf1x262yhjwzk8k77qahb65fcync99jha2a",
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"type": "tarball",
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"url": "https://github.com/cachix/pre-commit-hooks.nix/archive/2d169bb1b23f3b71a894a66ea81f45c788943248.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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148
nix/sources.nix
148
nix/sources.nix
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@ -1,148 +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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name: spec:
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if builtins.hasAttr "outPath" spec
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then 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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) 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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38
shell.nix
38
shell.nix
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@ -1,9 +1,33 @@
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{ project ? import ./nix/default.nix { }
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let
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}:
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mozillaOverlay =
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import (builtins.fetchGit {
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url = "https://github.com/mozilla/nixpkgs-mozilla.git";
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rev = "57c8084c7ef41366993909c20491e359bbb90f54";
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});
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pinned = builtins.fetchGit {
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# Descriptive name to make the store path easier to identify
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name = "nixos-unstable-2020-04-26";
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url = "https://github.com/nixos/nixpkgs/";
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# Commit hash for nixos-unstable as of 2020-04-26
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# `git ls-remote https://github.com/nixos/nixpkgs nixos-unstable`
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ref = "refs/heads/nixos-unstable";
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rev = "1fe6ed37fd9beb92afe90671c0c2a662a03463dd";
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};
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nixpkgs = import pinned { overlays = [ mozillaOverlay ]; };
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rust-nightly = with nixpkgs; ((rustChannelOf { date = "2021-03-01"; channel = "nightly"; }).rust.override {
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targets = [ "wasm32-unknown-unknown" ];
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});
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in
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with nixpkgs; pkgs.mkShell {
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buildInputs = [
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clang
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pkg-config
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rust-nightly
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] ++ stdenv.lib.optionals stdenv.isDarwin [
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darwin.apple_sdk.frameworks.Security
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];
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project.pkgs.mkShell {
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LIBCLANG_PATH = "${llvmPackages.libclang}/lib";
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buildInputs = project.devTools;
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PROTOC = "${protobuf}/bin/protoc";
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LIBCLANG_PATH = "${project.pkgs.llvmPackages.libclang}/lib/libclang.so";
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ROCKSDB_LIB_DIR = "${rocksdb}/lib";
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PROTOC = "${project.pkgs.protobuf}/bin/protoc";
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ROCKSDB = "${project.pkgs.rocksdb}/lib/librocksdb.so";
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}
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}
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