Start on supporting auto-suggestions when checking out a branch

switch to other fuzzy package with no dependencies

pkg/utils/fuzzy_search.go

@@ -0,0 +1,28 @@
+package utils
+
+import (
+	"sort"
+
+	"github.com/sahilm/fuzzy"
+)
+
+func FuzzySearch(needle string, haystack []string) []string {
+	if needle == "" {
+		return []string{}
+	}
+
+	myHaystack := make([]string, len(haystack))
+	for i := range haystack {
+		myHaystack[i] = haystack[i]
+	}
+
+	matches := fuzzy.Find(needle, haystack)
+	sort.Sort(matches)
+
+	result := make([]string, len(matches))
+	for i, match := range matches {
+		result[i] = match.Str
+	}
+
+	return result
+}

pkg/utils/fuzzy_search_test.go

@@ -0,0 +1,53 @@
+package utils
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// TestFuzzySearch is a function.
+func TestFuzzySearch(t *testing.T) {
+	type scenario struct {
+		needle   string
+		haystack []string
+		expected []string
+	}
+
+	scenarios := []scenario{
+		{
+			needle:   "",
+			haystack: []string{"test"},
+			expected: []string{},
+		},
+		{
+			needle:   "test",
+			haystack: []string{"test"},
+			expected: []string{"test"},
+		},
+		{
+			needle:   "o",
+			haystack: []string{"a", "o", "e"},
+			expected: []string{"o"},
+		},
+		{
+			needle:   "mybranch",
+			haystack: []string{"my_branch", "mybranch", "branch", "this is my branch"},
+			expected: []string{"mybranch", "my_branch", "this is my branch"},
+		},
+		{
+			needle:   "test",
+			haystack: []string{"not a good match", "this 'test' is a good match", "test"},
+			expected: []string{"test", "this 'test' is a good match"},
+		},
+		{
+			needle:   "test",
+			haystack: []string{"Test"},
+			expected: []string{"Test"},
+		},
+	}
+
+	for _, s := range scenarios {
+		assert.EqualValues(t, s.expected, FuzzySearch(s.needle, s.haystack))
+	}
+}