From 8e8aa1d2cb0a635bedf1bc1ff9d99fb7208d99c1 Mon Sep 17 00:00:00 2001
From: Ralph Meier <ralphmeier79@gmail.com>
Date: Wed, 23 Aug 2017 10:19:27 +0200
Subject: [PATCH] feat: only allow patch releases in a maintenance branch

---
 bin/semantic-release.sh                   |  9 ++++++++-
 js/semantic-release/verifyPatchRelease.js | 18 ++++++++++++++++++
 package.json                              |  3 ---
 3 files changed, 26 insertions(+), 4 deletions(-)
 create mode 100644 js/semantic-release/verifyPatchRelease.js

diff --git a/bin/semantic-release.sh b/bin/semantic-release.sh
index f7ad95c..f31d0ac 100755
--- a/bin/semantic-release.sh
+++ b/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
diff --git a/js/semantic-release/verifyPatchRelease.js b/js/semantic-release/verifyPatchRelease.js
new file mode 100644
index 0000000..68ba006
--- /dev/null
+++ b/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.`
+	));
+};
diff --git a/package.json b/package.json
index 1bdbe04..15de7c4 100644
--- a/package.json
+++ b/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"
   }
 }