From 5b20e3edae102025b54e918e2dfbd9576d82773c Mon Sep 17 00:00:00 2001
From: Christian Rocha <christian@rocha.is>
Date: Mon, 7 Sep 2020 12:37:00 -0400
Subject: [PATCH] Hide files and dirs starting with a dot by default

---
 main.go  | 12 ++++++++----
 ui/ui.go | 35 ++++++++++++++++++++++++++++++++---
 2 files changed, 40 insertions(+), 7 deletions(-)

diff --git a/main.go b/main.go
index e2da65c..9ba0222 100644
--- a/main.go
+++ b/main.go
@@ -26,10 +26,11 @@ var (
 	Version   = ""
 	CommitSHA = ""
 
-	readmeNames = []string{"README.md", "README"}
-	pager       bool
-	style       string
-	width       uint
+	readmeNames  = []string{"README.md", "README"}
+	pager        bool
+	style        string
+	width        uint
+	showAllFiles bool
 
 	rootCmd = &cobra.Command{
 		Use:              "glow SOURCE",
@@ -186,6 +187,8 @@ func executeArg(cmd *cobra.Command, arg string, w io.Writer) error {
 			defer f.Close()
 		}
 
+		cfg.ShowAllFiles = showAllFiles
+
 		// Run Bubble Tea program
 		p := ui.NewProgram(style, cfg)
 		p.EnterAltScreen()
@@ -291,6 +294,7 @@ func init() {
 	rootCmd.Flags().BoolVarP(&pager, "pager", "p", false, "display with pager")
 	rootCmd.Flags().StringVarP(&style, "style", "s", "auto", "style name or JSON path")
 	rootCmd.Flags().UintVarP(&width, "width", "w", 0, "word-wrap at width")
+	rootCmd.Flags().BoolVarP(&showAllFiles, "all", "a", false, "show files and directories starting with a dot (TUI-mode only)")
 
 	// Stash
 	stashCmd.PersistentFlags().StringVarP(&memo, "memo", "m", "", "memo/note for stashing")
diff --git a/ui/ui.go b/ui/ui.go
index b17a9b6..5bf4bf9 100644
--- a/ui/ui.go
+++ b/ui/ui.go
@@ -32,6 +32,8 @@ var (
 
 // Config contains configuration specified to the TUI.
 type Config struct {
+	ShowAllFiles bool
+
 	// For debugging the UI
 	Logfile              string `env:"GLOW_UI_LOGFILE"`
 	HighPerformancePager bool   `env:"GLOW_UI_HIGH_PERFORMANCE_PAGER" default:"true"`
@@ -63,6 +65,7 @@ type initLocalFileSearchMsg struct {
 	ch  chan gitcha.SearchResult
 }
 type foundLocalFileMsg gitcha.SearchResult
+type skipLocalFileMsg gitcha.SearchResult
 type localFileSearchFinished struct{}
 type gotStashMsg []*charm.Markdown
 type stashLoadErrMsg struct{ err error }
@@ -274,6 +277,10 @@ func update(msg tea.Msg, mdl tea.Model) (tea.Model, tea.Cmd) {
 		m.stash.addMarkdowns(newMd)
 		cmds = append(cmds, findNextLocalFile(m))
 
+		// We found a file that we want to ignore
+	case skipLocalFileMsg:
+		cmds = append(cmds, findNextLocalFile(m))
+
 	case sshAuthErrMsg:
 		// If we haven't run the keygen yet, do that
 		if m.keygenState != keygenFinished {
@@ -419,14 +426,22 @@ func findLocalFiles() tea.Msg {
 
 func findNextLocalFile(m model) tea.Cmd {
 	return func() tea.Msg {
-		pathStr, ok := <-m.localFileFinder
+		res, ok := <-m.localFileFinder
+
+		if !m.cfg.ShowAllFiles && isDotFileOrDir(m.cwd, res.Path) {
+			if debug {
+				log.Println("ignoring file:", res.Path)
+			}
+			return skipLocalFileMsg(res)
+		}
+
 		if ok {
 			// Okay now find the next one
-			return foundLocalFileMsg(pathStr)
+			return foundLocalFileMsg(res)
 		}
 		// We're done
 		if debug {
-			log.Println("Local file search finished")
+			log.Println("local file search finished")
 		}
 		return localFileSearchFinished{}
 	}
@@ -601,6 +616,20 @@ func localFileToMarkdown(cwd string, res gitcha.SearchResult) *markdown {
 	return md
 }
 
+// Returns whether or not the given path contains a file or directory starting
+// with a dot. This is relative to the current working directory, so if you're
+// in a dot directory and browsing files beneath this function won't return
+// true every time.
+func isDotFileOrDir(cwd, path string) bool {
+	p := strings.Replace(path, cwd, "", 1)
+	for _, v := range strings.Split(p, string(os.PathSeparator)) {
+		if len(v) > 0 && v[0] == '.' {
+			return true
+		}
+	}
+	return false
+}
+
 // Lightweight version of reflow's indent function.
 func indent(s string, n int) string {
 	if n <= 0 || s == "" {