Update to nixos-unstable

This is necessary because a dependency of `favicons`, `sharp`, depends
on a slightly newer version of libvips than what is available in
nixos-20.09.

flake.lock

@@ -31,10 +31,27 @@
         "type": "github"
       }
     },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1617899217,
+        "narHash": "sha256-gd5JHH7IkeoIQ/oiGZSqDpGdGt7DMRJTQ8JiD8+hdOQ=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "9e377a6ce42dccd9b624ae4ce8f978dc892ba0e2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable"
       }
     }
   },

flake.nix

@@ -3,12 +3,14 @@
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-20.09";
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils }@inputs:
+  outputs = { self, nixpkgs, nixpkgs-unstable, flake-utils }@inputs:
     flake-utils.lib.simpleFlake {
-      inherit self nixpkgs;
+      inherit self;
+      nixpkgs = nixpkgs-unstable;
       name = "tlaternet-templates";
 
       overlay = final: prev: {

nix/default.nix

@@ -1,4 +1,4 @@
-# This file has been generated by node2nix 1.8.0. Do not edit!
+# This file has been generated by node2nix 1.9.0. Do not edit!
 
 {pkgs ? import <nixpkgs> {
     inherit system;
@@ -6,12 +6,12 @@
 
 let
   nodeEnv = import ./node-env.nix {
-    inherit (pkgs) stdenv python2 utillinux runCommand writeTextFile;
+    inherit (pkgs) stdenv lib python2 runCommand writeTextFile;
-    inherit nodejs;
+    inherit pkgs nodejs;
     libtool = if pkgs.stdenv.isDarwin then pkgs.darwin.cctools else null;
   };
 in
 import ./node-packages.nix {
-  inherit (pkgs) fetchurl fetchgit;
+  inherit (pkgs) fetchurl nix-gitignore stdenv lib fetchgit;
   inherit nodeEnv;
-}
+}

nix/node-env.nix

@@ -1,8 +1,11 @@
 # This file originates from node2nix
 
-{stdenv, nodejs, python2, utillinux, libtool, runCommand, writeTextFile}:
+{lib, stdenv, nodejs, python2, pkgs, libtool, runCommand, writeTextFile}:
 
 let
+  # Workaround to cope with utillinux in Nixpkgs 20.09 and util-linux in Nixpkgs master
+  utillinux = if pkgs ? utillinux then pkgs.utillinux else pkgs.util-linux;
+
   python = if nodejs ? python then nodejs.python else python2;
 
   # Create a tar wrapper that filters all the 'Ignoring unknown extended header keyword' noise
@@ -38,8 +41,8 @@ let
     };
 
   includeDependencies = {dependencies}:
-    stdenv.lib.optionalString (dependencies != [])
+    lib.optionalString (dependencies != [])
-      (stdenv.lib.concatMapStrings (dependency:
+      (lib.concatMapStrings (dependency:
         ''
           # Bundle the dependencies of the package
           mkdir -p node_modules
@@ -100,7 +103,7 @@ let
       cd "$DIR/${packageName}"
       ${includeDependencies { inherit dependencies; }}
       cd ..
-      ${stdenv.lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
+      ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
     '';
 
   pinpointDependencies = {dependencies, production}:
@@ -161,12 +164,12 @@ let
     ''
       node ${pinpointDependenciesFromPackageJSON} ${if production then "production" else "development"}
 
-      ${stdenv.lib.optionalString (dependencies != [])
+      ${lib.optionalString (dependencies != [])
         ''
           if [ -d node_modules ]
           then
               cd node_modules
-              ${stdenv.lib.concatMapStrings (dependency: pinpointDependenciesOfPackage dependency) dependencies}
+              ${lib.concatMapStrings (dependency: pinpointDependenciesOfPackage dependency) dependencies}
               cd ..
           fi
         ''}
@@ -183,7 +186,7 @@ let
           cd "${packageName}"
           ${pinpointDependencies { inherit dependencies production; }}
           cd ..
-          ${stdenv.lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
+          ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
       fi
     '';
 
@@ -242,8 +245,8 @@ let
       if(fs.existsSync("./package-lock.json")) {
           var packageLock = JSON.parse(fs.readFileSync("./package-lock.json"));
 
-          if(packageLock.lockfileVersion !== 1) {
+          if(![1, 2].includes(packageLock.lockfileVersion)) {
-             process.stderr.write("Sorry, I only understand lock file version 1!\n");
+             process.stderr.write("Sorry, I only understand lock file versions 1 and 2!\n");
              process.exit(1);
           }
 
@@ -344,8 +347,8 @@ let
         cd "${packageName}"
         runHook preRebuild
 
-        ${stdenv.lib.optionalString bypassCache ''
+        ${lib.optionalString bypassCache ''
-          ${stdenv.lib.optionalString reconstructLock ''
+          ${lib.optionalString reconstructLock ''
             if [ -f package-lock.json ]
             then
                 echo "WARNING: Reconstruct lock option enabled, but a lock file already exists!"
@@ -361,14 +364,14 @@ let
           node ${addIntegrityFieldsScript}
         ''}
 
-        npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${stdenv.lib.optionalString production "--production"} rebuild
+        npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${lib.optionalString production "--production"} rebuild
 
         if [ "''${dontNpmInstall-}" != "1" ]
         then
             # NPM tries to download packages even when they already exist if npm-shrinkwrap is used.
             rm -f npm-shrinkwrap.json
 
-            npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${stdenv.lib.optionalString production "--production"} install
+            npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${lib.optionalString production "--production"} install
         fi
     '';
 
@@ -396,8 +399,8 @@ let
     stdenv.mkDerivation ({
       name = "node_${name}-${version}";
       buildInputs = [ tarWrapper python nodejs ]
-        ++ stdenv.lib.optional (stdenv.isLinux) utillinux
+        ++ lib.optional (stdenv.isLinux) utillinux
-        ++ stdenv.lib.optional (stdenv.isDarwin) libtool
+        ++ lib.optional (stdenv.isDarwin) libtool
         ++ buildInputs;
 
       inherit nodejs;
@@ -445,8 +448,8 @@ let
       '';
     } // extraArgs);
 
-  # Builds a development shell
+  # Builds a node environment (a node_modules folder and a set of binaries)
-  buildNodeShell =
+  buildNodeDependencies =
     { name
     , packageName
     , version
@@ -465,13 +468,13 @@ let
 
     let
       extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" ];
-
+    in
-      nodeDependencies = stdenv.mkDerivation ({
+      stdenv.mkDerivation ({
         name = "node-dependencies-${name}-${version}";
 
         buildInputs = [ tarWrapper python nodejs ]
-          ++ stdenv.lib.optional (stdenv.isLinux) utillinux
+          ++ lib.optional (stdenv.isLinux) utillinux
-          ++ stdenv.lib.optional (stdenv.isDarwin) libtool
+          ++ lib.optional (stdenv.isDarwin) libtool
           ++ buildInputs;
 
         inherit dontStrip; # Stripping may fail a build for some package deployments
@@ -491,7 +494,7 @@ let
           # Create fake package.json to make the npm commands work properly
           cp ${src}/package.json .
           chmod 644 package.json
-          ${stdenv.lib.optionalString bypassCache ''
+          ${lib.optionalString bypassCache ''
             if [ -f ${src}/package-lock.json ]
             then
                 cp ${src}/package-lock.json .
@@ -500,23 +503,44 @@ let
 
           # Go to the parent folder to make sure that all packages are pinpointed
           cd ..
-          ${stdenv.lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
+          ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
 
           ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }}
 
           # Expose the executables that were installed
           cd ..
-          ${stdenv.lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
+          ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
 
           mv ${packageName} lib
           ln -s $out/lib/node_modules/.bin $out/bin
         '';
       } // extraArgs);
+
+  # Builds a development shell
+  buildNodeShell =
+    { name
+    , packageName
+    , version
+    , src
+    , dependencies ? []
+    , buildInputs ? []
+    , production ? true
+    , npmFlags ? ""
+    , dontNpmInstall ? false
+    , bypassCache ? false
+    , reconstructLock ? false
+    , dontStrip ? true
+    , unpackPhase ? "true"
+    , buildPhase ? "true"
+    , ... }@args:
+
+    let
+      nodeDependencies = buildNodeDependencies args;
     in
     stdenv.mkDerivation {
       name = "node-shell-${name}-${version}";
 
-      buildInputs = [ python nodejs ] ++ stdenv.lib.optional (stdenv.isLinux) utillinux ++ buildInputs;
+      buildInputs = [ python nodejs ] ++ lib.optional (stdenv.isLinux) utillinux ++ buildInputs;
       buildCommand = ''
         mkdir -p $out/bin
         cat > $out/bin/shell <<EOF
@@ -529,14 +553,15 @@ let
 
       # Provide the dependencies in a development shell through the NODE_PATH environment variable
       inherit nodeDependencies;
-      shellHook = stdenv.lib.optionalString (dependencies != []) ''
+      shellHook = lib.optionalString (dependencies != []) ''
         export NODE_PATH=${nodeDependencies}/lib/node_modules
         export PATH="${nodeDependencies}/bin:$PATH"
       '';
     };
 in
 {
-  buildNodeSourceDist = stdenv.lib.makeOverridable buildNodeSourceDist;
+  buildNodeSourceDist = lib.makeOverridable buildNodeSourceDist;
-  buildNodePackage = stdenv.lib.makeOverridable buildNodePackage;
+  buildNodePackage = lib.makeOverridable buildNodePackage;
-  buildNodeShell = stdenv.lib.makeOverridable buildNodeShell;
+  buildNodeDependencies = lib.makeOverridable buildNodeDependencies;
+  buildNodeShell = lib.makeOverridable buildNodeShell;
 }

nix/override.nix

@@ -15,7 +15,5 @@ in nodePackages // {
       vips
       glib
     ];
-
-    npmFlags = "--ignore-scripts";
   };
 }

package.json

@@ -42,11 +42,7 @@
     "typescript": "^4.2.4",
     "typescript-language-server": "^0.4.0"
   },
-  "resolutions": {
-    "sharp": "0.26.3"
-  },
   "scripts": {
-    "preinstall": "npx npm-force-resolutions",
     "build": "parcel build --no-autoinstall src/index.html",
     "serve": "parcel serve --no-autoinstall src/index.html",
     "watch": "parcel watch --no-autoinstall src/index.html",