[flake]: Introduce flake-parts, treefmt, and other changes

.envrc

@@ -0,0 +1 @@
+use flake

.github/workflows/build.yml

@@ -88,8 +88,8 @@ jobs:
       - run: npm ci
       - run: npx --yes vsce ls
 
-  fmt-ocamlfmt:
-    name: Format with ocamlfmt
+  treefmt:
+    name: Format
     runs-on: ubuntu-latest
     steps:
       - name: 🔭 Checkout code
@@ -98,21 +98,5 @@ jobs:
           submodules: recursive
       - name: ❄️ Setup Nix
         uses: cachix/install-nix-action@v18
-      - name: 📐 Format with ocamlfmt
-        run: nix develop .#fmt -c make fmt
-
-  fmt-prettier:
-    name: Format with prettier
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        working-directory: ./editor/code
-    steps:
-      - name: 🔭 Checkout code
-        uses: actions/checkout@v3
-      - name: 🚀 Setup node
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16
-      - run: npm ci
-      - run: npx prettier -c .
+      - name: 📐 Format with alejandra, ocamlformat, prettier
+        run: nix fmt

.gitignore

@@ -5,3 +5,8 @@ _opam
 .git-ps
 
 *.cache
+
+.direnv
+# Nix build will produce this
+result
+

CONTRIBUTING.md

@@ -61,17 +61,22 @@ You can also use the regular `dune build @check` etc... targets.
 
 #### Nix
 
-We have a Nix flake that you can use. For development, simply run `nix develop`.
+We have a Nix flake that you can use. For development, in the case of the server, simply run `nix develop`.
+In the case of the client, we expose separate shells, e.g client-vscode, would be `nix develop .#client-vscode` (this can be done on top of the original `nix develop`)
 
-If you wish to do `nix build` or compose this flake from another project, you
+You can view the list of packages and devShells that are exposed
+by running `nix flake show`.
+
+If you wish to do `nix build`, you
 will need to use the .?submodules=1` trick, since we use submodules here for
 vendoring. For example, building requires:
 
 ```
 nix build .?submodules=1
 ```
 
-You can use this flake in other flakes or Nix derivations.
+This currently only applies to building the default package (coq-lsp), which is the server. 
+Clients don't have specific submodules as of yet.
 
 #### Releasing
 

README.md

@@ -21,13 +21,33 @@ In order to use `coq-lsp` you'll need to install [**both**](etc/FAQ.md) the
 #### Server
 
 - **opam**: `opam install coq-lsp`
-- **Nix** (coming soon)
+- **Nix**: 
+   - In nixpkgs: [#213397](https://github.com/NixOS/nixpkgs/pull/213397)
+   - In your flake: 
+   ```nix 
+   inputs.coq-lsp = { type = "git"; url = "https://github.com/ejgallego/coq-lsp.git"; submodules = true; };
+   ...
+   coq-lsp.packages.${system}.default
+   ```
 - **Coq Platform** (coming soon)
 - [Do it yourself!](#server-1)
 
 #### **Visual Studio Code**:
 - Official Marketplace: https://marketplace.visualstudio.com/items?itemName=ejgallego.coq-lsp
 - Open VSX: https://open-vsx.org/extension/ejgallego/coq-lsp
+- Nix: 
+```nix
+inputs.coq-lsp = { type = "git"; url = "https://github.com/ejgallego/coq-lsp.git"; submodules = true; };
+...
+programs.vscode = {
+  enable = true;
+  extensions = with pkgs.vscode-extensions; [
+    ...
+    inputs.coq-lsp.packages.${pkgs.system}.vscode-extension
+    ...
+  ];
+}; 
+```
 
 ### FAQ
 

default.nix

@@ -1,25 +1,14 @@
-{
-  pkgs ? import (fetchTarball "https://github.com/vbgl/nixpkgs/tarball/2a4e60c330d66638897ec450126eb1e3a9a13148") {}
-}:
-
-with pkgs;
-
-let oc = ocaml-ng.ocamlPackages_4_07; in
-
-stdenv.mkDerivation {
-  name = "coq-lsp-0";
-  src = builtins.filterSource (p: _: builtins.baseNameOf p != "_build") ./.;
-  buildInputs = [
-    dune oc.ocaml oc.findlib oc.num oc.yojson oc.cmdliner
-    oc.lablgtk
-  ];
-
-  preBuild = ''
-    for f in kernel dev/tools
-    do
-      patchShebangs coq/$f
-    done
-  '';
-
-  inherit (dune) installPhase;
-}
+(
+  import
+  (
+    let
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+    in
+      fetchTarball {
+        url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+        sha256 = lock.nodes.flake-compat.locked.narHash;
+      }
+  )
+  {src = ./.;}
+)
+.defaultNix

editor/code/flakeModule.nix

@@ -0,0 +1,52 @@
+{
+  perSystem = {
+    config,
+    pkgs,
+    lib,
+    inputs',
+    ...
+  }: {
+    packages.vsix = (inputs'.napalm.legacyPackages).buildPackage ./. {
+      installPhase = ''
+        mkdir $out
+        ${lib.getExe pkgs.vsce} package -o $out/$name.zip > /dev/null 2>&1
+      '';
+
+      passthru = let
+        attrs = builtins.fromJSON (builtins.readFile ./package.json);
+      in {
+        extPublisher = attrs.publisher;
+        extName = attrs.name;
+        extVersion = attrs.version;
+        extId = with attrs; "${publisher}.${name}";
+      };
+    };
+
+    packages.vscode-extension = let
+      vsix = config.packages.vsix;
+    in
+      pkgs.vscode-utils.buildVscodeExtension
+      {
+        inherit (vsix) name;
+
+        version = vsix.extVersion;
+
+        vscodeExtPublisher = vsix.extPublisher;
+        vscodeExtName = vsix.extName;
+        vscodeExtUniqueId = vsix.extId;
+
+        src = "${vsix}/${vsix.name}.zip";
+      };
+
+    devShells.client-vscode = pkgs.mkShell {
+      packages = builtins.attrValues {
+        inherit (pkgs) nodejs;
+        inherit (pkgs.nodePackages) typescript typescript-language-server;
+
+        inherit (config.treefmt.build) wrapper;
+      };
+    };
+
+    treefmt.config.programs.prettier.enable = true;
+  };
+}