chore: analyze travis commit and check for blocked statements.

Fixes #175.

Closes #180

.travis.yml

@@ -63,6 +63,7 @@ before_script:
   - "sh -e /etc/init.d/xvfb start"
   - mkdir -p $LOGS_DIR
   - npm run tslint
+  - "node ./scripts/ci/analyze-commits.js"
 
 
 script:

scripts/ci/analyze-commits.js

@@ -0,0 +1,30 @@
+'use strict';
+/*
+ * This script analyzes the current commits of the CI.
+ * It will search for blocked statements, which have been added in the commits and fail if present.
+ */
+
+var child_process = require('child_process');
+var blocked_statements = [
+  'ddescribe',
+  'fdescribe',
+  'iit',
+  'fit',
+  'xdescribe',
+  'xit',
+  'debugger;'
+];
+
+var blockedRegex = new RegExp('\\+.*(' + blocked_statements.join('|') + ').*$', 'mg');
+
+var diff = child_process.execSync('git diff --unified=0 HEAD~1 ./src ./e2e').toString();
+var isInvalid = blockedRegex.test(diff);
+
+if (isInvalid) {
+  console.warn('Warning: You are using a statement in your commit, which is not allowed.\n' +
+    'Blocked Statements are: ' + blocked_statements.join(', ') + '\n' +
+    'Please remove them, and the CI will continue.');
+  process.exit(1);
+} else {
+  console.log('Info: The commits have been analyzed and are valid!');
+}