From 7ef91d4ec7f0b456d033c523fb4c9ff45c3f5c54 Mon Sep 17 00:00:00 2001
From: Anton Maklakov <anton@espressif.com>
Date: Wed, 20 Sep 2023 11:32:47 +0700
Subject: [PATCH] ci(danger): Add rules for branch naming

---
 .gitlab/dangerjs/dangerfile.js         |  3 +++
 .gitlab/dangerjs/mrSourceBranchName.js | 23 +++++++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 .gitlab/dangerjs/mrSourceBranchName.js

diff --git a/.gitlab/dangerjs/dangerfile.js b/.gitlab/dangerjs/dangerfile.js
index d6084cf45c..80b5196725 100644
--- a/.gitlab/dangerjs/dangerfile.js
+++ b/.gitlab/dangerjs/dangerfile.js
@@ -25,6 +25,9 @@ async function runChecks() {
     // Checks for MR area labels
     await require("./mrAreaLabels.js")();
 
+    // Checks for Source branch name
+    require("./mrSourceBranchName.js")();
+
     // Add success log if no issues
     if (
         results.fails.length === 0 &&
diff --git a/.gitlab/dangerjs/mrSourceBranchName.js b/.gitlab/dangerjs/mrSourceBranchName.js
new file mode 100644
index 0000000000..ae76ed8e56
--- /dev/null
+++ b/.gitlab/dangerjs/mrSourceBranchName.js
@@ -0,0 +1,23 @@
+/**
+ * Throw Danger WARN if branch name contains more than one slash or uppercase letters
+ *
+ * @dangerjs INFO
+ */
+module.exports = function () {
+    const sourceBranch = danger.gitlab.mr.source_branch;
+
+    // Check if the source branch name contains more than one slash
+    const slashCount = (sourceBranch.match(/\//g) || []).length;
+    if (slashCount > 1) {
+        return message(
+            `The source branch name \`${sourceBranch}\` contains more than one slash. This can cause troubles with git sync. Please rename the branch.`
+        );
+    }
+
+    // Check if the source branch name contains any uppercase letters
+    if (sourceBranch !== sourceBranch.toLowerCase()) {
+        return message(
+            `The source branch name \`${sourceBranch}\` contains uppercase letters. This can cause troubles on case-insensitive file systems (macOS). Please use only lowercase letters.`,
+        );
+    }
+};