Create initial extension

.envrc

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+use flake

.gitignore

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+.direnv/
+.vscode/
+extension.js
+node_modules/

extension.ts

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+import { ExtensionContext } from "vscode";
+
+export function activate(context: ExtensionContext) { }
+
+export function deactivate() { }

flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1727540905,
+        "narHash": "sha256-40J9tW7Y794J7Uw4GwcAKlMxlX2xISBl6IBigo83ih8=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "fbca5e745367ae7632731639de5c21f29c8744ed",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-24.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "Fennlang Visual Studio Code extension";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.05";
+  };
+
+  outputs = { nixpkgs, ... }:
+    let
+      pkgs = import nixpkgs {
+        system = "x86_64-linux";
+      };
+    in
+    {
+      devShells.x86_64-linux.default = pkgs.mkShell {
+        packages = with pkgs; [ nodejs ];
+      };
+    };
+}

package-lock.json

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+{
+  "name": "fennlang-vscode",
+  "version": "0.1.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "fennlang-vscode",
+      "version": "0.1.0",
+      "license": "MIT",
+      "devDependencies": {
+        "@types/vscode": "^1.93.0",
+        "typescript": "^5.6.2"
+      },
+      "engines": {
+        "vscode": "^1.74.0"
+      }
+    },
+    "node_modules/@types/vscode": {
+      "version": "1.93.0",
+      "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.93.0.tgz",
+      "integrity": "sha512-kUK6jAHSR5zY8ps42xuW89NLcBpw1kOabah7yv38J8MyiYuOHxLQBi0e7zeXbQgVefDy/mZZetqEFC+Fl5eIEQ==",
+      "dev": true
+    },
+    "node_modules/typescript": {
+      "version": "5.6.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.2.tgz",
+      "integrity": "sha512-NW8ByodCSNCwZeghjN3o+JX5OFH0Ojg6sadjEKY4huZ52TqbJTJnDo5+Tw98lSy63NZvi4n+ez5m2u5d4PkZyw==",
+      "dev": true,
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    }
+  }
+}

package.json

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+{
+  "name": "fennlang-vscode",
+  "version": "0.1.0",
+  "description": "Fennlang extension for Visual Studio Code",
+  "engines": {
+    "vscode": "^1.74.0"
+  },
+  "main": "extension.js",
+  "contributes": {},
+  "scripts": {
+    "build": "tsc"
+  },
+  "author": "Nettika <git@nettika.cat>",
+  "license": "MIT",
+  "devDependencies": {
+    "@types/vscode": "^1.93.0",
+    "typescript": "^5.6.2"
+  }
+}

tsconfig.json

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+{
+    "compilerOptions": {
+        "lib": [
+            "ESNext"
+        ]
+    }
+}