build: migrate gulp + esbuild to rollup

.vscodeignore

@@ -8,9 +8,6 @@
 # Github
 .github/**
 
-# Build
-gulpfile.js
-
 # Test
 test/**
 out/test/**

package.json

@@ -18,17 +18,18 @@
   "main": "./dist/extension.js",
   "l10n": "./l10n",
   "scripts": {
-    "build": "gulp build",
+    "build": "yarn clean && yarn convert && rollup -c rollup.config.ts --configPlugin @rollup/plugin-typescript",
     "lint": "eslint src --ext ts",
-    "watch": "gulp watch",
+    "watch": "yarn run build --watch",
     "format": "prettier --write .",
-    "clean": "gulp clean",
+    "clean": "rimraf --glob 'dist/' 'package.nls.*.json' 'l10n/*.json' 'cactbot-highlight*.vsix'",
+    "convert": "js-yaml syntaxes/timeline.tmLanguage.yaml > syntaxes/timeline.tmLanguage.json",
     "toc": "md-magic --path \"*.md\"",
-    "pretest": "yarn run build && yarn run tsc -p tsconfig.test.json",
+    "pretest": "yarn run build --sourcemap && yarn run tsc -p tsconfig.test.json",
     "tsc:noEmit": "tsc --noEmit",
     "test": "node ./out/runTest.js",
-    "package": "gulp package",
-    "prepack": "yarn port-i18n && yarn crowdin:pull",
+    "package": "vsce package --yarn",
+    "prepack": "yarn port-i18n && yarn crowdin:pull && yarn build --minify",
     "********* MANAGE I18N FILES **********": "",
     "port-i18n": "vscode-l10n-dev export --outDir ./l10n ./src",
     "crowdin:pull": "crowdin download",
@@ -146,10 +147,10 @@
   },
   "devDependencies": {
     "@crowdin/cli": "^3.13.0",
-    "@types/event-stream": "^4.0.5",
+    "@rollup/plugin-commonjs": "^25.0.8",
+    "@rollup/plugin-node-resolve": "^15.2.3",
+    "@rollup/plugin-typescript": "^11.1.6",
     "@types/glob": "^8.0.1",
-    "@types/gulp": "^4.0.10",
-    "@types/gulp-babel": "^6.1.31",
     "@types/js-yaml": "^4.0.5",
     "@types/mocha": "^10.0.1",
     "@types/node": "18.15.11",
@@ -158,22 +159,18 @@
     "@typescript-eslint/parser": "^7.11.0",
     "@vscode/l10n-dev": "^0.0.35",
     "@vscode/test-electron": "^2.3.10",
-    "del": "^7.0.0",
     "eslint": "<9",
     "eslint-import-resolver-typescript": "^3.6.1",
     "eslint-plugin-import": "^2.29.1",
     "eslint-plugin-prettier": "^5.1.3",
-    "event-stream": "^4.0.1",
     "glob": "^10.3.12",
-    "gulp": "^5.0.0",
-    "gulp-cli": "^3.0.0",
-    "gulp-esbuild": "^0.11.2",
     "js-yaml": "^4.1.0",
     "markdown-magic": "^2.6.1",
     "mocha": "^10.4.0",
     "prettier": "^3.0.0",
+    "rimraf": "^5.0.7",
+    "rollup": "^4.18.0",
     "ts-node": "^10.9.1",
-    "tsimportlib": "^0.0.5",
     "vsce": "^2.15.0"
   },
   "dependencies": {

rollup.config.ts

@@ -0,0 +1,15 @@
+import commonjs from '@rollup/plugin-commonjs'
+import { nodeResolve } from '@rollup/plugin-node-resolve'
+import typescript from '@rollup/plugin-typescript'
+import { defineConfig } from 'rollup'
+
+export default defineConfig({
+  input: './src/extension.ts',
+  output: {
+    dir: 'dist',
+    format: 'cjs',
+  },
+  external: ['vscode', 'fsevents'],
+  treeshake: true,
+  plugins: [nodeResolve(), commonjs(), typescript()],
+})

tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "baseUrl": ".",
-    "module": "commonjs",
+    "module": "ESNext",
     "moduleResolution": "node",
     "target": "es2019",
     "outDir": "dist",