From 4999a66526c97fcc770f4aa011d805efe532bcd2 Mon Sep 17 00:00:00 2001
From: Enix <enixcoda@gmail.com>
Date: Wed, 24 Apr 2019 12:08:19 +0800
Subject: [PATCH] fix: handle detached HEAD

---
 src/utils/URLHelper.ts | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/utils/URLHelper.ts b/src/utils/URLHelper.ts
index ca0da8b..884e9cb 100644
--- a/src/utils/URLHelper.ts
+++ b/src/utils/URLHelper.ts
@@ -60,15 +60,19 @@ function getCurrentPath(branchName = '') {
       // path = commit-SHA/path/to/item
       path.shift()
     } else {
-      // path = branch/name/path/to/item
-      const slicedBranchName = branchName.split('/')
-      while (slicedBranchName.length) {
-        if (slicedBranchName[0] === path[0]) {
-          slicedBranchName.shift()
-          path.shift()
-        } else {
-          raiseError(new Error(`branch name and path prefix not match`))
-          return []
+      // path = branch/name/path/to/item or HEAD/path/to/item
+      // HEAD is not a valid branch name. Coming up with HEAD, means currently detached.
+      if (path[0] === 'HEAD') path.shift()
+      else {
+        const slicedBranchName = branchName.split('/')
+        while (slicedBranchName.length) {
+          if (slicedBranchName[0] === path[0]) {
+            slicedBranchName.shift()
+            path.shift()
+          } else {
+            raiseError(new Error(`branch name and path prefix not match`))
+            return []
+          }
         }
       }
     }