From 23e70fb123ea6c564b0a0f1ae44adeb7011eaa11 Mon Sep 17 00:00:00 2001 From: Vibrant C3PO Date: Thu, 25 Nov 2021 16:28:32 +1000 Subject: [PATCH] nix: initial nix architecture --- default.nix | 22 ++++++ hakyll.patch | 0 nix/sources.json | 26 +++++++ nix/sources.nix | 174 +++++++++++++++++++++++++++++++++++++++++++++++ release.nix | 34 +++++++++ shell.nix | 1 + voc-web.nix | 11 +++ 7 files changed, 268 insertions(+) create mode 100644 default.nix create mode 100644 hakyll.patch create mode 100644 nix/sources.json create mode 100644 nix/sources.nix create mode 100644 release.nix create mode 100644 shell.nix create mode 100644 voc-web.nix diff --git a/default.nix b/default.nix new file mode 100644 index 0000000..eef0884 --- /dev/null +++ b/default.nix @@ -0,0 +1,22 @@ +{ nixpkgs ? import { }, compiler ? "default" }: +let + inherit (nixpkgs) pkgs; + haskellPackages = if compiler == "default" then + pkgs.haskellPackages + else + pkgs.haskell.packages.${compiler}; + voc-org = haskellPackages.callPackage ./voc-web.nix { }; +in nixpkgs.stdenv.mkDerivation { + name = "voc-org-website"; + buildInputs = [ voc-org ]; + src = ./.; + buildPhase = '' + echo "Setting LC_ALL to C.UTF-8 to avoid invalid byte sequence." + export LC_ALL=C.UTF-8 + site build + ''; + installPhase = '' + mkdir $out + cp -R _site/* $out + ''; +} diff --git a/hakyll.patch b/hakyll.patch new file mode 100644 index 0000000..e69de29 diff --git a/nix/sources.json b/nix/sources.json new file mode 100644 index 0000000..f64db52 --- /dev/null +++ b/nix/sources.json @@ -0,0 +1,26 @@ +{ + "niv": { + "branch": "master", + "description": "Easy dependency management for Nix projects", + "homepage": "https://github.com/nmattia/niv", + "owner": "nmattia", + "repo": "niv", + "rev": "5830a4dd348d77e39a0f3c4c762ff2663b602d4c", + "sha256": "1d3lsrqvci4qz2hwjrcnd8h5vfkg8aypq3sjd4g3izbc8frwz5sm", + "type": "tarball", + "url": "https://github.com/nmattia/niv/archive/5830a4dd348d77e39a0f3c4c762ff2663b602d4c.tar.gz", + "url_template": "https://github.com///archive/.tar.gz" + }, + "nixpkgs": { + "branch": "nixos-21.05", + "description": "Nix Packages collection", + "homepage": "", + "owner": "nixos", + "repo": "nixpkgs", + "rev": "09650059d7f5ae59a7f0fb2dd3bfc6d2042a74de", + "sha256": "0f06zcc8mh934fya0hwzklmga238yxiyfp183y48vyzkdsg7xgn0", + "type": "tarball", + "url": "https://github.com/nixos/nixpkgs/archive/09650059d7f5ae59a7f0fb2dd3bfc6d2042a74de.tar.gz", + "url_template": "https://github.com///archive/.tar.gz" + } +} diff --git a/nix/sources.nix b/nix/sources.nix new file mode 100644 index 0000000..1938409 --- /dev/null +++ b/nix/sources.nix @@ -0,0 +1,174 @@ +# This file has been generated by Niv. + +let + + # + # The fetchers. fetch_ fetches specs of type . + # + + fetch_file = pkgs: name: spec: + let + name' = sanitizeName name + "-src"; + in + if spec.builtin or true then + builtins_fetchurl { inherit (spec) url sha256; name = name'; } + else + pkgs.fetchurl { inherit (spec) url sha256; name = name'; }; + + fetch_tarball = pkgs: name: spec: + let + name' = sanitizeName name + "-src"; + in + if spec.builtin or true then + builtins_fetchTarball { name = name'; inherit (spec) url sha256; } + else + pkgs.fetchzip { name = name'; inherit (spec) url sha256; }; + + fetch_git = name: spec: + let + ref = + if spec ? ref then spec.ref else + if spec ? branch then "refs/heads/${spec.branch}" else + if spec ? tag then "refs/tags/${spec.tag}" else + abort "In git source '${name}': Please specify `ref`, `tag` or `branch`!"; + in + builtins.fetchGit { url = spec.repo; inherit (spec) rev; inherit ref; }; + + fetch_local = spec: spec.path; + + fetch_builtin-tarball = name: throw + ''[${name}] The niv type "builtin-tarball" is deprecated. You should instead use `builtin = true`. + $ niv modify ${name} -a type=tarball -a builtin=true''; + + fetch_builtin-url = name: throw + ''[${name}] The niv type "builtin-url" will soon be deprecated. You should instead use `builtin = true`. + $ niv modify ${name} -a type=file -a builtin=true''; + + # + # Various helpers + # + + # https://github.com/NixOS/nixpkgs/pull/83241/files#diff-c6f540a4f3bfa4b0e8b6bafd4cd54e8bR695 + sanitizeName = name: + ( + concatMapStrings (s: if builtins.isList s then "-" else s) + ( + builtins.split "[^[:alnum:]+._?=-]+" + ((x: builtins.elemAt (builtins.match "\\.*(.*)" x) 0) name) + ) + ); + + # The set of packages used when specs are fetched using non-builtins. + mkPkgs = sources: system: + let + sourcesNixpkgs = + import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) { inherit system; }; + hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath; + hasThisAsNixpkgsPath = == ./.; + in + if builtins.hasAttr "nixpkgs" sources + then sourcesNixpkgs + else if hasNixpkgsPath && ! hasThisAsNixpkgsPath then + import {} + else + abort + '' + Please specify either (through -I or NIX_PATH=nixpkgs=...) or + add a package called "nixpkgs" to your sources.json. + ''; + + # The actual fetching function. + fetch = pkgs: name: spec: + + if ! builtins.hasAttr "type" spec then + abort "ERROR: niv spec ${name} does not have a 'type' attribute" + else if spec.type == "file" then fetch_file pkgs name spec + else if spec.type == "tarball" then fetch_tarball pkgs name spec + else if spec.type == "git" then fetch_git name spec + else if spec.type == "local" then fetch_local spec + else if spec.type == "builtin-tarball" then fetch_builtin-tarball name + else if spec.type == "builtin-url" then fetch_builtin-url name + else + abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}"; + + # If the environment variable NIV_OVERRIDE_${name} is set, then use + # the path directly as opposed to the fetched source. + replace = name: drv: + let + saneName = stringAsChars (c: if isNull (builtins.match "[a-zA-Z0-9]" c) then "_" else c) name; + ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}"; + in + if ersatz == "" then drv else + # this turns the string into an actual Nix path (for both absolute and + # relative paths) + if builtins.substring 0 1 ersatz == "/" then /. + ersatz else /. + builtins.getEnv "PWD" + "/${ersatz}"; + + # Ports of functions for older nix versions + + # a Nix version of mapAttrs if the built-in doesn't exist + mapAttrs = builtins.mapAttrs or ( + f: set: with builtins; + listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set)) + ); + + # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295 + range = first: last: if first > last then [] else builtins.genList (n: first + n) (last - first + 1); + + # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257 + stringToCharacters = s: map (p: builtins.substring p 1 s) (range 0 (builtins.stringLength s - 1)); + + # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269 + stringAsChars = f: s: concatStrings (map f (stringToCharacters s)); + concatMapStrings = f: list: concatStrings (map f list); + concatStrings = builtins.concatStringsSep ""; + + # https://github.com/NixOS/nixpkgs/blob/8a9f58a375c401b96da862d969f66429def1d118/lib/attrsets.nix#L331 + optionalAttrs = cond: as: if cond then as else {}; + + # fetchTarball version that is compatible between all the versions of Nix + builtins_fetchTarball = { url, name ? null, sha256 }@attrs: + let + inherit (builtins) lessThan nixVersion fetchTarball; + in + if lessThan nixVersion "1.12" then + fetchTarball ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; })) + else + fetchTarball attrs; + + # fetchurl version that is compatible between all the versions of Nix + builtins_fetchurl = { url, name ? null, sha256 }@attrs: + let + inherit (builtins) lessThan nixVersion fetchurl; + in + if lessThan nixVersion "1.12" then + fetchurl ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; })) + else + fetchurl attrs; + + # Create the final "sources" from the config + mkSources = config: + mapAttrs ( + name: spec: + if builtins.hasAttr "outPath" spec + then abort + "The values in sources.json should not have an 'outPath' attribute" + else + spec // { outPath = replace name (fetch config.pkgs name spec); } + ) config.sources; + + # The "config" used by the fetchers + mkConfig = + { sourcesFile ? if builtins.pathExists ./sources.json then ./sources.json else null + , sources ? if isNull sourcesFile then {} else builtins.fromJSON (builtins.readFile sourcesFile) + , system ? builtins.currentSystem + , pkgs ? mkPkgs sources system + }: rec { + # The sources, i.e. the attribute set of spec name to spec + inherit sources; + + # The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers + inherit pkgs; + }; + +in +mkSources (mkConfig {}) // { __functor = _: settings: mkSources (mkConfig settings); } diff --git a/release.nix b/release.nix new file mode 100644 index 0000000..1e78279 --- /dev/null +++ b/release.nix @@ -0,0 +1,34 @@ +let sources = import ./nix/sources.nix; +in { compiler ? "ghc8104", pkgs ? import sources.nixpkgs { } }: + +let + inherit (pkgs.lib.trivial) flip pipe; + inherit (pkgs.haskell.lib) appendPatch appendConfigureFlags; + + haskellPackages = pkgs.haskell.packages.${compiler}.override { + overrides = hpNew: hpOld: { + hakyll = pipe hpOld.hakyll [ + (flip appendPatch ./hakyll.patch) + (flip appendConfigureFlags [ "-f" "watchServer" "-f" "previewServer" ]) + ]; + + voc-web = hpNew.callCabal2nix "voc-web" ./. { }; + + niv = import sources.niv { }; + }; + }; + + project = haskellPackages.voc-web; +in { + project = project; + + shell = haskellPackages.shellFor { + packages = p: with p; [ project ]; + buildInputs = with haskellPackages; [ + ghcid # GHCi based IDE + hlint # or ormolu + pkgs.niv # Nix dependency management + ]; + withHoogle = true; + }; +} diff --git a/shell.nix b/shell.nix new file mode 100644 index 0000000..bc6afd2 --- /dev/null +++ b/shell.nix @@ -0,0 +1 @@ +(import ./release.nix { }).shell diff --git a/voc-web.nix b/voc-web.nix new file mode 100644 index 0000000..2b1278e --- /dev/null +++ b/voc-web.nix @@ -0,0 +1,11 @@ +{ mkDerivation, base, hakyll, stdenv }: +mkDerivation { + pname = "voc-web"; + version = "0.1.0.0"; + src = ./.; + isLibrary = false; + isExecutable = true; + executableHaskellDepends = [ base hakyll ]; + license = "unknown"; + hydraPlatforms = stdenv.lib.platforms.none; +}