(GH-643) Add and configure prettier

This commit

- Adds `prettier` to devDependencies
- Configures `prettier` with `.prettierrc` with default format rules
- Removes `prettier` settings from .vscode/settings.json
- Adds `esbenp.prettier-vscode` to recommended extensions and sets it to default formatter
- COnfigures VS Code to format on type and save using `prettier`

Author: jpogran

.prettierignore

@@ -0,0 +1,6 @@
+languages
+snippets
+syntaxes
+out
+vendor
+package-lock.json

.prettierrc

@@ -0,0 +1,9 @@
+{
+  "singleQuote": true,
+  "tabWidth": 2,
+  "endOfLine": "lf",
+  "printWidth": 120,
+  "useTabs": false,
+  "trailingComma": "all",
+  "semi": true,
+}

.vscode/extensions.json

@@ -1,6 +1,7 @@
 {
   "recommendations": [
     "eamodio.gitlens",
+    "esbenp.prettier-vscode",
     "ms-vscode.vscode-typescript-tslint-plugin",
     "wwm.better-align",
     "rebornix.Ruby"

.vscode/settings.json

@@ -3,7 +3,7 @@
     "editor.insertSpaces": true,
     "editor.tabSize": 2,
     "editor.trimAutoWhitespace": true,
-  
+
     "files.encoding": "utf8",
     // The default end of line character. Use \n for LF and \r\n for CRLF.
     "files.eol": "\n",
@@ -19,11 +19,17 @@
       "node_modules": true,
       "out": true // set this to false to include "out" folder in search results
     },
-  
+
     "prettier.printWidth": 120,
     "prettier.singleQuote": true,
     "prettier.tabWidth": 2,
 
     // Turn off tsc task auto detection since we have the necessary tasks as npm scripts
-    "typescript.tsc.autoDetect": "off"
-  }
+    "typescript.tsc.autoDetect": "off",
+    "typescript.format.enable": false,
+    "[typescript]": {
+      "editor.formatOnSave": true,
+      "editor.formatOnType": true,
+      "editor.defaultFormatter": "esbenp.prettier-vscode"
+    },
+}

package.json

@@ -551,7 +551,8 @@
     "build": "pwsh -file ./build.ps1",
     "watch": "npm run build && tsc -watch -p ./",
     "pretest": "npm run compile",
-    "test": "node ./out/test/runtest.js"
+    "test": "node ./out/test/runtest.js",
+    "format": "prettier --write '**/**/*.{ts,js,json}'"
   },
   "devDependencies": {
     "@types/glob": "^7.1.1",