chore: add startup script to check for oudated versions (#1674)

* Initial update script

* Updates

* More updates

* Final updates

* Cleanup

* Update error message

* test fetch

* Revert test release branch

Composer/package.json

@@ -19,7 +19,7 @@
     "packages/tools/language-servers/*"
   ],
   "scripts": {
-    "build": "node scripts/begin.js && yarn build:prod",
+    "build": "node scripts/update.js && node scripts/begin.js && yarn build:prod",
     "build:prod": "yarn build:dev && yarn build:server && yarn build:client",
     "build:dev": "yarn build:tools && yarn build:lib && yarn build:extensions",
     "build:lib": "yarn workspace @bfc/libs build:all",
@@ -28,7 +28,7 @@
     "build:client": "yarn workspace @bfc/client build",
     "build:tools": "yarn workspace @bfc/tools build:all",
     "start": "cross-env NODE_ENV=production PORT=3000 yarn start:server",
-    "startall": "concurrently --kill-others-on-fail \"npm:runtime\" \"npm:start\"",
+    "startall": "node scripts/update.js && concurrently --kill-others-on-fail \"npm:runtime\" \"npm:start\"",
     "start:dev": "concurrently  \"npm:start:client\" \"npm:start:server:dev\"",
     "start:client": "yarn workspace @bfc/client start",
     "start:server": "yarn workspace @bfc/server start",

Composer/scripts/update.js

@@ -0,0 +1,29 @@
+const chalk = require('react-dev-utils/chalk');
+const { execSync } = require('child_process');
+
+const RELEASE_BRANCH = 'stable';
+const branch = execSync("git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* (.*)/ \1/'");
+const trimmedBranch = branch
+  .toString()
+  .trim()
+  .replace(/\*\s?/, '');
+
+if (trimmedBranch === RELEASE_BRANCH) {
+  console.log(chalk.yellow('Checking for updates...\n'));
+  try {
+    execSync('git fetch');
+    const sha = execSync(`git rev-parse --short ${RELEASE_BRANCH}`).toString();
+    const originSha = execSync(`git rev-parse --short origin/${RELEASE_BRANCH}`).toString();
+    if (sha !== originSha) {
+      console.log(
+        chalk.yellow(
+          `An update to Composer is available.\n\nRun 'git pull origin stable' or fetch from origin/stable using another git-based tool.\n\nSee the CHANGELOG for more details.\nhttps://github.com/microsoft/BotFramework-Composer/blob/stable/CHANGELOG.md#releases\n`
+        )
+      );
+    } else {
+      console.log(chalk.green('You are using the most up to date version of Composer.'));
+    }
+  } catch (e) {
+    console.log(chalk.yellow('Unable to compare applications versions.. continuing'));
+  }
+}