From 2dba6f6733c4b4bcc1e4173200846f16616b469d Mon Sep 17 00:00:00 2001
From: Jesse Duffield <jessedduffield@gmail.com>
Date: Sat, 11 Aug 2018 16:11:17 +1000
Subject: support case insensitive branch names

---
 branch_list_builder.go             | 13 ++++++++++++-
 test/case_insensitive_checkouts.sh | 30 ++++++++++++++++++++++++++++++
 test/lots_of_commits.sh            |  2 +-
 test/unicode_characters.sh         |  2 +-
 4 files changed, 44 insertions(+), 3 deletions(-)
 create mode 100755 test/case_insensitive_checkouts.sh

diff --git a/branch_list_builder.go b/branch_list_builder.go
index 113a5a44a..1d4dc338d 100644
--- a/branch_list_builder.go
+++ b/branch_list_builder.go
@@ -66,11 +66,19 @@ func (b *branchListBuilder) appendNewBranches(finalBranches, newBranches, existi
 		if included == branchIncluded(newBranch.Name, existingBranches) {
 			finalBranches = append(finalBranches, newBranch)
 		}
-
 	}
 	return finalBranches
 }
 
+func sanitisedReflogName(reflogBranch Branch, safeBranches []Branch) string {
+	for _, safeBranch := range safeBranches {
+		if strings.ToLower(safeBranch.Name) == strings.ToLower(reflogBranch.Name) {
+			return safeBranch.Name
+		}
+	}
+	return reflogBranch.Name
+}
+
 func (b *branchListBuilder) build() []Branch {
 	branches := make([]Branch, 0)
 	head := b.obtainCurrentBranch()
@@ -80,6 +88,9 @@ func (b *branchListBuilder) build() []Branch {
 	}
 	reflogBranches := b.obtainReflogBranches()
 	reflogBranches = uniqueByName(append([]Branch{head}, reflogBranches...))
+	for i, reflogBranch := range reflogBranches {
+		reflogBranches[i].Name = sanitisedReflogName(reflogBranch, safeBranches)
+	}
 
 	branches = b.appendNewBranches(branches, reflogBranches, safeBranches, true)
 	branches = b.appendNewBranches(branches, safeBranches, branches, false)
diff --git a/test/case_insensitive_checkouts.sh b/test/case_insensitive_checkouts.sh
new file mode 100755
index 000000000..d797a4181
--- /dev/null
+++ b/test/case_insensitive_checkouts.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# this script makes a repo with lots of commits
+
+# call this command from the test directory:
+# ./lots_of_commits.sh; cd testrepo; gg; cd ..
+
+# -e means exit if something fails
+# -x means print out simple commands before running them
+set -ex
+
+reponame="case_insensitive_checkouts"
+
+rm -rf ${reponame}
+mkdir ${reponame}
+cd ${reponame}
+
+git init
+
+touch foo
+git add foo
+git commit -m "init"
+git branch -a
+git branch test
+git branch TEST
+git checkout TEST
+git checkout TeST
+git checkout TesT
+git checkout TEsT
+git branch -a
\ No newline at end of file
diff --git a/test/lots_of_commits.sh b/test/lots_of_commits.sh
index 6a92d32e2..b56c9a6be 100755
--- a/test/lots_of_commits.sh
+++ b/test/lots_of_commits.sh
@@ -9,7 +9,7 @@
 # -x means print out simple commands before running them
 set -ex
 
-reponame="testrepo"
+reponame="lots_of_commits"
 
 rm -rf ${reponame}
 mkdir ${reponame}
diff --git a/test/unicode_characters.sh b/test/unicode_characters.sh
index 92640d52f..2db0b3cfa 100755
--- a/test/unicode_characters.sh
+++ b/test/unicode_characters.sh
@@ -10,7 +10,7 @@
 # -x means print out simple commands before running them
 set -ex
 
-reponame="testrepo"
+reponame="unicode_characters"
 
 rm -rf ${reponame}
 mkdir ${reponame}
-- 
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