refactor(git): count stash using file content

relates to #305

src/segment_git.go

@@ -14,7 +14,7 @@ type gitRepo struct {
 	behind     int
 	HEAD       string
 	upstream   string
-	stashCount string
+	stashCount int
 	gitFolder  string
 }
 
@@ -178,8 +178,8 @@ func (g *git) string() string {
 	if g.repo.working.changed {
 		fmt.Fprint(buffer, g.getStatusDetailString(g.repo.working, WorkingColor, LocalWorkingIcon, " \uF044"))
 	}
-	if g.repo.stashCount != "" {
-		fmt.Fprintf(buffer, " %s%s", g.props.getString(StashCountIcon, "\uF692 "), g.repo.stashCount)
+	if g.repo.stashCount != 0 {
+		fmt.Fprintf(buffer, " %s%d", g.props.getString(StashCountIcon, "\uF692 "), g.repo.stashCount)
 	}
 	return buffer.String()
 }
@@ -368,8 +368,13 @@ func (g *git) parseGitStats(output []string, working bool) *gitStatus {
 	return &status
 }
 
-func (g *git) getStashContext() string {
-	return g.getGitCommandOutput("rev-list", "--walk-reflogs", "--count", "refs/stash")
+func (g *git) getStashContext() int {
+	stashContent := g.getGitFileContents("logs/refs/stash")
+	if stashContent == "" {
+		return 0
+	}
+	lines := strings.Split(stashContent, "\n")
+	return len(lines)
 }
 
 func (g *git) parseGitStatusInfo(branchInfo string) map[string]string {

src/segment_git_test.go

@@ -230,25 +230,26 @@ func TestGetGitHEADContextMergeTag(t *testing.T) {
 }
 
 func TestGetStashContextZeroEntries(t *testing.T) {
-	want := ""
-	env := new(MockedEnvironment)
-	env.On("runCommand", "git", []string{"-c", "core.quotepath=false", "-c", "color.status=false", "rev-list", "--walk-reflogs", "--count", "refs/stash"}).Return("", nil)
-	g := &git{
-		env: env,
-	}
-	got := g.getStashContext()
-	assert.Equal(t, want, got)
-}
-
-func TestGetStashContextMultipleEntries(t *testing.T) {
-	want := "2"
-	env := new(MockedEnvironment)
-	env.On("runCommand", "git", []string{"-c", "core.quotepath=false", "-c", "color.status=false", "rev-list", "--walk-reflogs", "--count", "refs/stash"}).Return("2", nil)
-	g := &git{
-		env: env,
+	cases := []struct {
+		Expected     int
+		StashContent string
+	}{
+		{Expected: 0, StashContent: ""},
+		{Expected: 2, StashContent: "1\n2\n"},
+		{Expected: 4, StashContent: "1\n2\n3\n4\n\n"},
+	}
+	for _, tc := range cases {
+		env := new(MockedEnvironment)
+		env.On("getFileContent", "/logs/refs/stash").Return(tc.StashContent)
+		g := &git{
+			repo: &gitRepo{
+				gitFolder: "",
+			},
+			env: env,
+		}
+		got := g.getStashContext()
+		assert.Equal(t, tc.Expected, got)
 	}
-	got := g.getStashContext()
-	assert.Equal(t, want, got)
 }
 
 func TestParseGitBranchInfoEqual(t *testing.T) {