Do not prompt setting enableProposedApi if set. Fix #5

.prettierrc.json

@@ -1,5 +1,7 @@
 {
   "printWidth": 120,
   "semi": false,
-  "singleQuote": true
+  "singleQuote": true,
+  "trailingComma": "none",
+  "arrowParens": "avoid"
 }

index.js

@@ -28,10 +28,22 @@ function handleDev(gitTagOrBranch) {
     var outPath = path_1["default"].resolve(process.cwd(), './vscode.proposed.d.ts');
     console.log("Downloading vscode.proposed.d.ts\nTo:   " + outPath + "\nFrom: " + url);
     download(url, outPath).then(function () {
-        console.log("Please set " + toRedString("\"enableProposedApi\": true") + " in package.json.");
+        if (!isProposedApiEnabled()) {
+            console.log("Please set " + toRedString("\"enableProposedApi\": true") + " in package.json.");
+        }
         console.log('Read more about proposed API at: https://code.visualstudio.com/api/advanced-topics/using-proposed-api');
     });
 }
+function isProposedApiEnabled() {
+    try {
+        var packageJsonPath = path_1["default"].resolve(process.cwd(), './package.json');
+        var packageJson = JSON.parse(fs_1["default"].readFileSync(packageJsonPath, 'utf-8'));
+        return !!packageJson.enableProposedApi;
+    }
+    catch (_a) {
+        return false;
+    }
+}
 function handleDefaultDownload(gitTagOrBranch, force) {
     // handle master->main rename for old consumers
     if (gitTagOrBranch === 'master') {
@@ -57,10 +69,10 @@ function getHelpMessage() {
         '  - npx vscode-dts dev                          Download vscode.proposed.d.ts',
         '  - npx vscode-dts dev <git-tag | git-branch>   Download vscode.proposed.d.ts from git tag/branch of microsoft/vscode',
         '  - npx vscode-dts <git-tag | git-branch>       Download vscode.d.ts from git tag/branch of microsoft/vscode',
-        '  - npx vscode-dts <git-tag | git-branch> -f    Download vscode.d.ts and remove comflicing types in node_modules/@types/vscode',
+        '  - npx vscode-dts <git-tag | git-branch> -f    Download vscode.d.ts and remove conflicting types in node_modules/@types/vscode',
         '  - npx vscode-dts                              Print Help',
         '  - npx vscode-dts -h                           Print Help',
-        '  - npx vscode-dts --help                       Print Help'
+        '  - npx vscode-dts --help                       Print Help',
     ].join(os_1["default"].EOL);
 }
 function download(url, outPath) {

index.ts

@@ -26,15 +26,27 @@ function handleDev(gitTagOrBranch?: string) {
   console.log(`Downloading vscode.proposed.d.ts\nTo:   ${outPath}\nFrom: ${url}`)
 
   download(url, outPath).then(() => {
-    console.log(`Please set ${toRedString(`"enableProposedApi": true`)} in package.json.`)
+    if (!isProposedApiEnabled()) {
+      console.log(`Please set ${toRedString(`"enableProposedApi": true`)} in package.json.`)
+    }
     console.log('Read more about proposed API at: https://code.visualstudio.com/api/advanced-topics/using-proposed-api')
   })
 }
 
+function isProposedApiEnabled() {
+  try {
+    const packageJsonPath = path.resolve(process.cwd(), './package.json')
+    const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf-8'))
+    return !!packageJson.enableProposedApi
+  } catch {
+    return false
+  }
+}
+
 function handleDefaultDownload(gitTagOrBranch: string, force?: boolean) {
   // handle master->main rename for old consumers
   if (gitTagOrBranch === 'master') {
-    gitTagOrBranch = 'main';
+    gitTagOrBranch = 'main'
   }
 
   const url = `https://raw.githubusercontent.com/microsoft/vscode/${gitTagOrBranch}/src/vs/vscode.d.ts`