feat: only allow patch releases in a maintenance branch

bin/semantic-release.sh

@@ -3,7 +3,14 @@
 set -e
 
 # Set new version
-semantic-release pre
+if [[ $TRAVIS_PULL_REQUEST =~ false ]]; then
+  if [[ $TRAVIS_BRANCH =~ ^maintenance- ]]; then
+    # only allow patch releases in a maintenance branch
+    semantic-release pre --verify-release="./js/semantic-release/verifyPatchRelease.js"
+  else
+    semantic-release pre
+  fi
+fi
 
 # Remove all devDeps so shrinkwrap does not pick them up.
 # Shrinkwrap shouldn't pick up devDeps, but there is a bug so it picks up the

js/semantic-release/verifyPatchRelease.js

@@ -0,0 +1,18 @@
+'use strict';
+
+const SRError = require('@semantic-release/error');
+
+module.exports = (pluginConfig, config, cb) => {
+	const type = config.nextRelease.type;
+
+	// Only allow a patch or initial release
+	if (type === 'patch' || type === 'initial') {
+		cb(null);
+		return;
+	}
+
+	cb(new SRError(
+		`a 'minor' or a 'major' release is not allowed in a maintenance branch.\n` +
+		`Please update your commit messages in the maintenance branch.`
+	));
+};

package.json

@@ -25,8 +25,5 @@
     "semver": "^5.3.0",
     "tap-spec": "^4.1.1",
     "tape": "^4.8.0"
-  },
-  "release": {
-    "verifyConditions": "@semantic-release/condition-travis"
   }
 }