mirror of
https://github.com/nix-community/comma.git
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69 lines
2.1 KiB
Nix
69 lines
2.1 KiB
Nix
{ pkgs ? import <nixpkgs> { }
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, stdenv ? pkgs.stdenv
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, lib ? pkgs.lib
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, fetchurl ? pkgs.fetchurl
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, nix-index ? pkgs.nix-index
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, nix ? pkgs.nix
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, fzy ? pkgs.fzy
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, makeWrapper ? pkgs.makeWrapper
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, runCommand ? pkgs.runCommand
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, updateScript ? import ./update-index.nix { inherit pkgs; }
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, linkFarm ? pkgs.linkFarm
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# We use this to add matchers for stuff that's not in upstream nixpkgs, but is
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# in our own overlay. No fuzzy matching from multiple options here, it's just:
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# Was the command `, mything`? Run `nixpkgs.mything`.
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, overlayPackages ? []
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}:
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let
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indexCaches = {
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x86_64-linux = fetchurl {
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url = "https://github.com/Mic92/nix-index-database/releases/download/2021-12-12/index-x86_64-linux";
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hash = "sha256-+SoG5Qz2KWA/nIWXE6SLpdi8MDqTs8LY90fGZxGKOiA=";
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};
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x86_64-darwin = fetchurl {
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url = "https://github.com/Mic92/nix-index-database/releases/download/2022-02-27/index-x86_64-darwin";
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hash = "sha256-sHGUSjd6EOpzdWtS5FGtTkS9KEKvDCGMHTYVwxOkZIo=";
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};
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};
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# nix-index takes a little while to run and the contents don't change
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# meaningfully very often.
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indexCache = indexCaches.${stdenv.hostPlatform.system} or (throw "unsupported system: ${stdenv.hostPlatform.system}");
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# nix-locate needs the --db argument to be a directory containing a file
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# named "files".
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nixIndexDB = linkFarm "nix-index-cache" [
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{ name = "files"; path = indexCache; }
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];
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in
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stdenv.mkDerivation rec {
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name = "comma";
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src = ./.;
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buildInputs = [ nix-index nix fzy ];
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nativeBuildInputs = [ makeWrapper ];
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installPhase = let
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caseCondition = lib.concatStringsSep "|" (overlayPackages ++ [ "--placeholder--" ]);
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in ''
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mkdir -p $out/bin
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sed -e 's/@OVERLAY_PACKAGES@/${caseCondition}/' < , > $out/bin/,
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chmod +x $out/bin/,
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wrapProgram $out/bin/, \
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--set PREBUILT_NIX_INDEX_DB ${nixIndexDB} \
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--set NIXPKGS ${pkgs.path} \
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--set UPDATE_SCRIPT ${updateScript} \
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--prefix PATH : ${nix-index}/bin \
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--prefix PATH : ${nix}/bin \
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--prefix PATH : ${fzy}/bin
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ln -s $out/bin/, $out/bin/comma
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'';
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}
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