1 files changed, 8 insertions, 4 deletions
diff --git a/deps/npm/node_modules/pacote/lib/util/git.js b/deps/npm/node_modules/pacote/lib/util/git.js
index a24edccdd0..a6162ceeba 100644
--- a/deps/npm/node_modules/pacote/lib/util/git.js
+++ b/deps/npm/node_modules/pacote/lib/util/git.js
@@ -58,7 +58,7 @@ function fullClone (repo, committish, target, opts) {
   return execGit(gitArgs, {
     cwd: path.dirname(target)
   }, opts).then(() => {
-    return execGit(['checkout', committish], {
+    return committish && execGit(['checkout', committish], {
       cwd: target
     })
   }).then(() => {
@@ -69,7 +69,11 @@ function fullClone (repo, committish, target, opts) {
 module.exports.shallow = shallowClone
 function shallowClone (repo, branch, target, opts) {
   opts = optCheck(opts)
-  const gitArgs = ['clone', '--depth=1', '-q', '-b', branch, repo, target]
+  const gitArgs = ['clone', '--depth=1', '-q']
+  if (branch) {
+    gitArgs.push('-b', branch)
+  }
+  gitArgs.push(repo, target)
   if (process.platform === 'win32') {
     gitArgs.push('--config', 'core.longpaths=true')
   }
@@ -204,8 +208,8 @@ function checkGit () {
   }
 }
 
-const REFS_TAGS = '/refs/tags/'
-const REFS_HEADS = '/refs/heads/'
+const REFS_TAGS = 'refs/tags/'
+const REFS_HEADS = 'refs/heads/'
 const HEAD = 'HEAD'
 function refType (ref) {
   return ref.indexOf(REFS_TAGS) !== -1