feat: links to folders open as folders, on machines and SSH hosts, with their own icon; deleting a link leaves what it leads to

internal/agent/sshfs.go

@@ -72,7 +72,9 @@ var (
 // statCommand lists dir's entries as "type|size|mtime|mode|name" lines.
 func statCommand(flavour, dir string) string {
 	d := shq(strings.TrimSuffix(dir, "/") + "/")
-	loop := "cd " + d + " && for f in .[!.]* ..?* *; do [ -e \"$f\" ] || [ -L \"$f\" ] || continue; "
+	// Each line starts with LD for a link to a folder, so it opens like one.
+	loop := "cd " + d + " && for f in .[!.]* ..?* *; do [ -e \"$f\" ] || [ -L \"$f\" ] || continue; " +
+		"t=; [ -L \"$f\" ] && [ -d \"$f\" ] && t=LD; printf '%s|' \"$t\"; "
 	switch flavour {
 	case "bsd":
 		return loop + "stat -f '%HT|%z|%m|%Sp|%N' -- \"$f\"; done"
@@ -84,6 +86,11 @@ func statCommand(flavour, dir string) string {
 
 // parseStatLine reads one line of statCommand's output.
 func parseStatLine(line string) (proto.FSEntry, bool) {
+	// The LD mark of statCommand: empty, or LD for a link to a folder.
+	mark := ""
+	if i := strings.IndexByte(line, '|'); i >= 0 && (line[:i] == "" || line[:i] == "LD") {
+		mark, line = line[:i], line[i+1:]
+	}
 	p := strings.SplitN(line, "|", 5)
 	if len(p) != 5 {
 		return proto.FSEntry{}, false
@@ -94,7 +101,8 @@ func parseStatLine(line string) (proto.FSEntry, bool) {
 		return proto.FSEntry{}, false
 	}
 	t := strings.ToLower(p[0])
-	return proto.FSEntry{Name: p[4], IsDir: strings.Contains(t, "directory"), Size: size, MTime: mt, Mode: p[3]}, true
+	return proto.FSEntry{Name: p[4], IsDir: strings.Contains(t, "directory") || mark == "LD", Size: size, MTime: mt, Mode: p[3],
+		Link: strings.Contains(t, "link")}, true
 }
 
 // parseLsLine reads a line of "ls -la" for a host with no stat: no times.