design improvements, stabilize everything, update readme

module/util/config.sh

@@ -1,8 +1,10 @@
 function show_usage() {
-  echo "Usage: $0 [-e <email>] [-s <server>]"
+  echo "Usage: $0 [-e <email>] [-s <server>] [-v] [-d]"
   echo "Options:"
-  echo "  -e    Email address"
-  echo "  -s    Server URL"
+  echo "  -e <email>    Set email address"
+  echo "  -s <server>   Set server URL"
+  echo "  -v            Get module version"
+  echo "  -d            Get debug mode status"
   exit 1
 }
 
@@ -12,11 +14,14 @@ function set_email() {
     show_usage
   fi
 
-  if ! grep -q "EMAIL=" /data/adb/beesrv/config.txt; then
-    echo "EMAIL=$1" >> /data/adb/beesrv/config.txt
-  else
-    sed -i "s/EMAIL=.*/EMAIL=$1/" /data/adb/beesrv/config.txt
-  fi
+  local email="$1"
+  local config_file="/data/adb/beesrv/config.txt"
+
+  touch "$config_file"
+
+  grep -v "^EMAIL=" "$config_file" > "$config_file.tmp" 2>/dev/null || true
+  echo "EMAIL=$email" >> "$config_file.tmp"
+  mv "$config_file.tmp" "$config_file"
 
   echo "Success"
 }
@@ -27,16 +32,39 @@ function set_server() {
     show_usage
   fi
 
-  if ! grep -q "SERVER=" /data/adb/beesrv/config.txt; then
-    echo "SERVER=$1" >> /data/adb/beesrv/config.txt
-  else
-    sed -i "s/SERVER=.*/SERVER=$1/" /data/adb/beesrv/config.txt
-  fi
+  local server_url="$1"
+  local config_file="/data/adb/beesrv/config.txt"
+
+  touch "$config_file"
+
+  grep -v "^SERVER=" "$config_file" > "$config_file.tmp" 2>/dev/null || true
+  echo "SERVER=$server_url" >> "$config_file.tmp"
+  mv "$config_file.tmp" "$config_file"
 
   echo "Success"
 }
 
-while getopts "e:s:" opt; do
+function get_version() {
+  local mod_prop
+  mod_prop="$(dirname "$0")/../module.prop"
+  if [ -f "$mod_prop" ]; then
+    version=$(grep "version=" "$mod_prop" | cut -d'=' -f2)
+    echo "$version"
+  else
+    echo "Unknown"
+  fi
+}
+
+function get_debug_mode() {
+  local config_file="/data/adb/beesrv/config.txt"
+  if [ -f "$config_file" ] && grep -q "^DEBUG=true$" "$config_file"; then
+    echo "true"
+  else
+    echo "false"
+  fi
+}
+
+while getopts "e:s:vd" opt; do
   case ${opt} in
     e )
       set_email "$OPTARG"
@@ -44,6 +72,12 @@ while getopts "e:s:" opt; do
     s )
       set_server "$OPTARG"
       ;;
+    v )
+      get_version
+      ;;
+    d )
+      get_debug_mode
+      ;;
     \? )
       echo "[ERROR] Invalid option -$OPTARG"
       show_usage