create announce.js to announce deploys to slack

bin/announce.js

@@ -0,0 +1,46 @@
+// this will announce that a deploy successfully finished into slack
+
+const https = require('https');
+
+let environment = process.env.SCRATCH_ENV || 'unknown environment';
+
+let branch = process.env.CIRCLE_BRANCH || 'unknown branch';
+
+let urlEng = process.env.SLACK_WEBHOOK_ENGINEERING;
+let urlMod = process.env.SLACK_WEBHOOK_MODS;
+let urlNotifications = process.env.SLACK_WEBHOOK_CIRCLECI_NOTIFICATIONS;
+
+let announcement = {text: `scratch-www has deployed branch ${branch} to ${environment}.`};
+
+const options = {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json'
+    }
+};
+
+const postMessage = (url, message, channelName) => {
+    let data = JSON.stringify(message);
+    const req = https.request(url, options, res => {
+        console.log(`statusCode: ${res.statusCode}`); // eslint-disable-line no-console
+        if (res.statusCode === 200) {
+            process.stdout.write(`announced to ${channelName}\n` + JSON.stringify(message) + '\n');
+        } else {
+            process.stdout.write(`FAILED to announce to slack`);
+        }
+    });
+
+    req.on('error', error => {
+        console.error(error); // eslint-disable-line no-console
+    });
+
+    req.write(data);
+    req.end();
+};
+
+postMessage(urlNotifications, announcement, '#circleci-notifications');
+
+if (environment === 'production'){
+    postMessage(urlEng, announcement, '#engineering');
+    postMessage(urlMod, announcement, '#scratch-mods');
+}

package.json

@@ -18,7 +18,7 @@
     "test:coverage": "tap ./test/{unit-legacy,localization-legacy}/ --coverage --coverage-report=lcov",
     "build": "npm run clean && npm run translate && NODE_OPTIONS=--max_old_space_size=8000 webpack --bail",
     "clean": "rm -rf ./build && rm -rf ./intl && mkdir -p build && mkdir -p intl",
-    "deploy": "npm run deploy:s3 && npm run deploy:fastly",
+    "deploy": "npm run deploy:s3 && npm run deploy:fastly && npm run deploy:announce",
     "deploy:fastly": "node ./bin/configure-fastly.js",
     "deploy:s3": "npm run deploy:s3:all && npm run deploy:s3:svg && npm run deploy:s3:js && npm run deploy:s3:css",
     "deploy:s3cmd": "s3cmd sync -P --delete-removed --add-header=Cache-Control:no-cache,public,max-age=3600 --add-header=x-amz-meta-surrogate-key:static-assets",
@@ -26,6 +26,7 @@
     "deploy:s3:svg": "npm run deploy:s3cmd -- --exclude '*' --include '*.svg' --mime-type 'image/svg+xml' ./build/ s3://$S3_BUCKET_NAME/",
     "deploy:s3:js": "npm run deploy:s3cmd -- --exclude '*' --include '*.js' --mime-type 'application/javascript' ./build/ s3://$S3_BUCKET_NAME/",
     "deploy:s3:css": "npm run deploy:s3cmd -- --exclude '*' --include '*.css' --mime-type 'text/css' ./build/ s3://$S3_BUCKET_NAME/",
+    "deploy:announce": "node ./bin/announce.js",
     "i18n:push": "./bin/tx-push-www --execute",
     "translate:urls": "node ./bin/get-localized-urls localized-urls.json",
     "translate:files": "node ./bin/build-locales node_modules/scratch-l10n/www intl",