Build spago from source

core/spago.yaml

@@ -33,5 +33,6 @@ package:
     - refs
     - registry-lib
     - strings
+    - stringutils
     - transformers
     - tuples

flake.nix

@@ -1,7 +1,7 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
-    purescript-overlay.url = "github:thomashoneyman/purescript-overlay";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
+    purescript-overlay.url = "github:deemp/purescript-overlay/main";
     purescript-overlay.inputs.nixpkgs.follows = "nixpkgs";
   };
 
@@ -19,8 +19,14 @@
     {
       overlays = {
         purescript = inputs.purescript-overlay.overlays.default;
+        slimlock = inputs.purescript-overlay.inputs.slimlock.overlays.default;
       };
 
+      packages = forAllSystems (system:
+        let pkgs = nixpkgsFor.${system}; in
+        { default = pkgs.callPackage ./spago.nix { }; }
+      );
+
       devShells = forAllSystems (system:
         let pkgs = nixpkgsFor.${system}; in {
           default = pkgs.mkShell {
@@ -35,6 +41,21 @@
               esbuild
             ];
           };
+
+          dev = pkgs.mkShell {
+            shellHook = ''
+              source ${self.packages.${system}.default}/share/bash-completion/completions/spago
+
+              spago --help
+
+              printf "\nspago version:\n"
+              spago --version
+            '';
+            buildInputs = with pkgs; [
+              self.packages.${system}.default
+              purs-unstable
+            ];
+          };
         });
     };
 }

spago.lock

@@ -713,6 +713,7 @@ workspace:
         - refs
         - registry-lib
         - strings
+        - stringutils
         - transformers
         - tuples
       test_dependencies: []
@@ -790,6 +791,7 @@ workspace:
         - safe-coerce
         - st
         - strings
+        - stringutils
         - tailrec
         - transformers
         - tuples

spago.nix

@@ -0,0 +1,94 @@
+{ lib
+, stdenv
+, slimlock
+, python3
+, purix
+, purs
+, esbuild
+, writeText
+, writeShellScriptBin
+, nodejs
+}:
+let
+  fs = lib.fileset;
+  packageLock = (slimlock.buildPackageLock {
+    src = fs.toSource {
+      root = ./.;
+      fileset = fs.unions [
+        ./package-lock.json
+        ./package.json
+      ];
+    };
+  }).overrideAttrs (x: {
+    nativeBuildInputs = (x.nativeBuildInputs or [ ]) ++ [ python3 ];
+  });
+
+  spagoLock = purix.buildSpagoLock {
+    src = fs.toSource {
+      root = ./.;
+      fileset = fs.unions [
+        ./bin
+        ./core
+        ./docs-search
+        ./src
+        ./spago.lock
+        ./spago.yaml
+      ];
+    };
+  };
+
+  spago-app = stdenv.mkDerivation {
+    name = "spago-app";
+
+    src = fs.toSource {
+      root = ./.;
+      fileset = fs.unions [
+        ./bin/index.dev.js
+        ./package.json
+        ./package-lock.json
+      ];
+    };
+
+    nativeBuildInputs = [ esbuild ];
+
+    buildPhase = ''
+      echo "Linking ..."
+      ln -s ${packageLock}/js/node_modules .
+      ln -s ${spagoLock.spago-bin}/output .
+      esbuild bin/index.dev.js \
+        --bundle \
+        --outfile=app.js \
+        --platform=node \
+        --format=esm \
+        --packages=external
+    '';
+
+    installPhase = ''
+      mkdir $out
+      cp app.js $out
+      cp package.json package-lock.json $out
+      ln -s ${packageLock}/js/node_modules $out
+      ln -s $out/app.js $out/spago
+    '';
+  };
+
+  spago-script = writeShellScriptBin "spago" ''
+    ${nodejs}/bin/node ${spago-app}/spago "$@"
+  '';
+
+  spago = stdenv.mkDerivation {
+    name = "spago";
+    phases = [ "installPhase" ];
+    installPhase = ''
+      mkdir -p $out
+
+      SPAGO="$out/bin/spago"
+      ln -s ${spago-script}/bin $out
+
+      BASH_COMPLETIONS=$out/share/bash-completion/completions/
+      mkdir -p $BASH_COMPLETIONS
+      $SPAGO --bash-completion-script $SPAGO > $BASH_COMPLETIONS/spago
+    '';
+  };
+in
+spago