[Dir Flattening] Disable feature for remote directories.

Fixes #205

README.org

@@ -281,6 +281,8 @@ your home directory when there is no node or path at point. That means that vari
 ~magit-status~ or ~helm-projectile-ag~ will correctly act based on the current directory or project context.
 ** Tramp Support
 Treemacs supports projects on remote directories, e.g. ~/scp:remote-server:path/to/directory~.
+
+However tramp support has some restrictions: ~treemacs-use-collapsed-directories~ has no effect on remote directories.
 ** Org support
 Treemacs supports storing links to its file nodes by means of ~org-store-link~.
 ** Additional Packages

src/scripts/treemacs-dirs-to-collapse.py

@@ -8,6 +8,10 @@
 LIMIT    = int(sys.argv[2])
 SHOW_ALL = sys.argv[3] == 't'
 
+if ROOT.startswith("/ssh:") or ROOT.startswith("/scp:"):
+    print("()")
+    sys.exit(0)
+
 # special workaround for windows platforms
 # the default `join' implementation cannot quite deal with windows
 # paths in the form of "C:/A/B" & "C:/A/B/C", joining them as