add optional config for postCmd

README.md

@@ -3,8 +3,7 @@
 Simple helper for turning on/off connected/disconnected monitors with `xrandr`.
 
 ## Usage
-
-`swm [monitor-1...montior-n]` e.g. `swm LVDS1 HDMI1`
+`swm [monitor-1...montior-n] [--postCmd="cmd"]` e.g. `swm LVDS1 HDMI1`
 
 If `monitor-1` to `monitor-n` is specified `swm` will turn on these monitors
 and place them from left to right in the order given. If a provided monitor is
@@ -13,6 +12,23 @@ not connected it will be skipped.
 If no monitors are specified all connected monitors will be turned on and
 placed from left to right in alphabetical order of their name.
 
+If `--postCmd` is given, this command is executed after switching the monitors.
+This is usefull to tell your window manager to re-detect monitors, e.g. for
+herbstluftwm `herbstclient reload`.
+
+`swm -l` or `swm --list`
+
+List all devices with the connectivity status.
+
+The configuration can be placed in `$XDG_CONFIG_HOME/switchmon/config.json` in
+the form of
+
+```
+{
+    "postCmd": "some command"
+}
+```
+
 ## Requirements
 
 Node.js > 4.x on your PATH.