support case insensitive branch names

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)

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

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}

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}