Add nix flake to repo (#1111)

1 files changed, 70 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
new file mode 100644
index 00000000..00a18f64
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,70 @@
+{
+  description = "Spacebar server, written in Typescript.";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachSystem flake-utils.lib.allSystems (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+        };
+        hashesFile = builtins.fromJSON (builtins.readFile ./hashes.json);
+      in rec {
+        packages.default = pkgs.buildNpmPackage {
+          pname = "spacebar-server-ts";
+          src = ./.;
+          name = "spacebar-server-ts";
+          nativeBuildInputs = with pkgs; [ python3 ];
+          npmDepsHash = hashesFile.npmDepsHash;
+          makeCacheWritable = true;
+          postPatch = ''
+            substituteInPlace package.json --replace 'npx patch-package' '${pkgs.nodePackages.patch-package}/bin/patch-package'
+          '';
+          installPhase = ''
+            runHook preInstall
+            set -x
+            #remove packages not needed for production, or at least try to...
+            npm prune --omit dev --no-save $npmInstallFlags "''${npmInstallFlagsArray[@]}" $npmFlags "''${npmFlagsArray[@]}"
+            find node_modules -maxdepth 1 -type d -empty -delete
+
+            mkdir -p $out/node_modules/
+            cp -r node_modules/* $out/node_modules/
+            cp -r dist/ $out/node_modules/@spacebar
+            for i in dist/**/start.js
+            do
+              makeWrapper ${pkgs.nodejs-slim}/bin/node $out/bin/start-`dirname ''${i/dist\//}` --prefix NODE_PATH : $out/node_modules --add-flags $out/node_modules/@spacebar`dirname ''${i/dist/}`/start.js
+            done
+            set +x
+            substituteInPlace package.json --replace 'dist/' 'node_modules/@spacebar/'
+            find $out/node_modules/@spacebar/ -type f -name "*.js" | while read srcFile; do
+              echo Patching imports in ''${srcFile/$out\/node_modules\/@spacebar//}...
+              substituteInPlace $srcFile --replace 'require("./' 'require(__dirname + "/'
+              substituteInPlace $srcFile --replace 'require("../' 'require(__dirname + "/../'
+              substituteInPlace $srcFile --replace ', "assets"' ', "..", "assets"'
+              #substituteInPlace $srcFile --replace 'require("@spacebar/' 'require("
+            done
+            set -x
+            cp -r assets/ $out/
+            cp package.json $out/
+            rm -v $out/assets/openapi.json
+            #rm -v $out/assets/schemas.json
+
+            #debug utils:
+            #cp $out/node_modules/@spacebar/ $out/build_output -r
+            set +x
+            runHook postInstall
+          '';
+        };
+        devShell = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            nodejs
+            nodePackages.typescript
+          ];
+        };
+      }
+    );
+}