Warning for user of the auto_close_empty_groups

It's better than setting an "install update" in messages, because I
never bother to read those (so I'm guessing people don't) (idea: the
problem is that it's hard to emphasize stuff. There should be a syntax
definition to highlight important changes), and because it only affect
people who *we know* it is going to affect. It's not a fat disgusting
promotion to uninterested programmers who just want to get stuff done.

So, the setting is officially removed from FileManager.

I'm happy with it :-)

Also, I fixed some indentation is the only interesting part of the
install message. I probably should fix it up too.

Author: math2001

FileManager.py

@@ -36,6 +36,28 @@ def _reload(file):
 # auto reload sub files - for dev
 
 
+def plugin_loaded():
+    settings = get_settings()
+    # this use to be a supported setting, but we dropped it. (see #27)
+    if settings.get("auto_close_empty_groups") is not None:
+        # we could remove the setting automatically, and install the
+        # package if it was set to true, but it'd be an extra source
+        # of bugs, and it doesn't take that much effort (it's a one
+        # time thing, so it doesn't need to be automated)
+        sublime.error_message(
+            "FileManager\n\n"
+            "auto_close_empty_groups is set, but this setting is no longer "
+            "supported.\n\n"
+            "Auto closing empty groups (in the layout) use to be a feature "
+            "of FileManager, but it has now moved to it's own package.\n\n"
+            "If you still want this behaviour, you can install "
+            "AutoCloseEmptyGroup, it's available on package control.\n\n"
+            "To disable this warning, unset the setting "
+            "auto_close_empty_groups in FileManager.sublime-settings (search "
+            "for Preferences: FileManager Settings in the command palette)"
+        )
+
+
 class FmDevListener(sublime_plugin.EventListener):
     def on_post_save(self, view):
         """Reload FileManager

FileManager.sublime-settings

@@ -69,10 +69,6 @@
     // will be hidden
     "menu_without_distraction": true,
 
-    // when you close the last file of a group (ie. there will be no files left
-    // after this files is closed), FileManager will automatically close the group
-    "auto_close_empty_groups": false,
-
     // auto refresh the side bar when you run any action that might affect it
     // by default, sublime text would do it by itself, but if this is
     // set to true, then it will be explicitly refreshed

messages/install.txt

@@ -52,17 +52,18 @@ The ASCII FileManager has been generated using the ASCII Decorator.
 https://github.com/viisual/ASCII-Decorator
 
 Tip of the day: You can bind commands to modifiers-free key combination:
-                {
-                    "keys": ["-", ">"],
-                    "command": "insert_snippet",
-                    "args": {
-                        "contents": "→ "
-                    }
-                }
 
-                Once set, each time you'll type '->', it'll insert this '→ '
+    {
+        "keys": ["-", ">"],
+        "command": "insert_snippet",
+        "args": {
+            "contents": "→ "
+        }
+    }
 
-                If you don't know how to set up shortcuts, don't worry, it's
-                explained here:
+Once set, each time you'll type '->', it'll insert this '→ '
 
-                http://docs.sublimetext.info/en/latest/reference/key_bindings.html
+If you don't know how to set up shortcuts, don't worry, it's
+explained here:
+
+http://docs.sublimetext.info/en/latest/reference/key_bindings.html