more cleaning

displaym/displaym

@@ -0,0 +1,45 @@
+#!/bin/sh
+set -e
+
+argv0="$0"
+
+error(){
+        printf "%s: %s\n" "$argv0" "$1" 1>&2
+        exit $2
+}
+
+usage(){
+        set +x
+        printf "\
+Usage:
+        %s [window manager] [action]\n" "$argv0" 1>&2
+        exit 64 # sysexits(3) EX_USAGE
+}
+
+[ -n "$2" ] \
+	|| usage
+
+# sysexits(3) EX_OSERR
+[ -n "$HOME" ] \
+	|| error "No \$HOME environment variable set. This is very bad." 71 
+
+if [ -z "$DISPLAYM_CONFIG" ]; then
+	[ -z "$XDG_CONFIG_HOME" ] \
+		&& DISPLAYM_CONFIG="$HOME/.displaym" \
+		|| DISPLAYM_CONFIG="$XDG_CONFIG_HOME/displaym"
+fi
+
+export DISPLAYM_CONFIG
+
+[ -e "$DISPLAYM_CONFIG" ] && ! [ -d "$DISPLAYM_CONFIG" ] \
+        && bak "$DISPLAYM_CONFIG" \
+	|| true
+
+[ -d "$DISPLAYM_CONFIG" ] \
+        || mkdir -p "$DISPLAYM_CONFIG"
+
+WM="$1"; export WM
+SCRIPT="$2"
+
+# with exported DISPLAYM_CONFIG and WM
+sh <"$DISPLAYM_CONFIG/$WM/$SCRIPT.sh"