wireless devices autoconnection (#67)

* refactored wireless device connection script
added daemon for wireless device autoconnection

* updated README

* updated Dockerfile

* refactored autoconnect function
Updated entry point and Dockerfile

Appium/Dockerfile

@@ -115,11 +115,15 @@ EXPOSE 4723
 COPY \
   Appium/entry_point.sh \
   Appium/generate_config.sh \
+  Appium/wireless_connect.sh \
+  Appium/wireless_autoconnect.sh \
     /root/
 RUN chmod +x /root/entry_point.sh && \
-    chmod +x /root/generate_config.sh
+    chmod +x /root/generate_config.sh && \
+    chmod +x /root/wireless_connect.sh && \
+    chmod +x /root/wireless_autoconnect.sh
 
 #========================================
 # Run xvfb and appium server
 #========================================
-CMD ["/root/entry_point.sh"]
+CMD /root/wireless_autoconnect.sh && /root/entry_point.sh

Appium/entry_point.sh

@@ -3,6 +3,10 @@
 NODE_CONFIG_JSON="/root/nodeconfig.json"
 CMD="xvfb-run appium"
 
+if [ ! -z "$REMOTE_ADB" ]; then
+    /root/wireless_connect.sh
+fi
+
 if [ ! -z "$CONNECT_TO_GRID" ]; then
   /root/generate_config.sh $NODE_CONFIG_JSON
   CMD+=" --nodeconfig $NODE_CONFIG_JSON"

Appium/generate_config.sh

@@ -30,20 +30,6 @@ if [ -z "$NODE_TIMEOUT" ]; then
   NODE_TIMEOUT=300
 fi
 
-if [ ! -z "$REMOTE_ADB" ]; then
-    if [ ! -z "$ANDROID_DEVICES" ]; then
-        IFS=',' read -r -a array <<< "$ANDROID_DEVICES"
-        for i in "${!array[@]}"
-        do
-            echo "Connecting to: ${array[$i]}"
-            adb connect ${array[$i]}
-            echo "Success!"
-        done
-        #Give time to finish connection
-        sleep 1
-    fi
-fi
-
 #Get device names
 devices=($(adb devices | grep -oP "\K([^ ]+)(?=\sdevice(\W|$))"))
 echo "Devices found: ${#devices[@]}"

Appium/wireless_autoconnect.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+if [ ! -z "$REMOTE_ADB" ]; then
+
+    if [ -z "$REMOTE_ADB_POLLING_SEC" ]; then
+        REMOTE_ADB_POLLING_SEC=5
+    fi
+
+    function connect() {
+        while true
+        do
+            #to avoid immediate run
+            sleep ${REMOTE_ADB_POLLING_SEC}
+            /root/wireless_connect.sh
+        done
+    }
+
+    ( trap "true" HUP ; connect ) >/dev/null 2>/dev/null </dev/null & disown
+fi

Appium/wireless_connect.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+if [ ! -z "$ANDROID_DEVICES" ]; then
+    connected_devices=$(adb devices)
+    IFS=',' read -r -a array <<< "$ANDROID_DEVICES"
+    for i in "${!array[@]}"
+    do
+        array_device=$(echo ${array[$i]} | tr -d " ")
+        #string contains check
+        if [[ ${connected_devices} != *${array_device}* ]]; then
+            echo "Connecting to: ${array_device}"
+            adb connect ${array_device}
+            echo "Success!"
+        fi
+    done
+    #Give time to finish connection
+    sleep 1
+fi

README.md

@@ -110,9 +110,10 @@ Then run docker container with following parameters:
 
 - REMOTE\_ADB=True
 - ANDROID\_DEVICES=\<android\_device\_host\>:\<android\_device\_port\> \[,\<android\_device\_host\>:\<android\_device\_port\>\]
+- REMOTE_ADB_POLLING_SEC=60 (default: 5, interval between polling the list of connected devices in order to connect to lost remote devices)
 
 ```
-$ docker run -d -p 4723:4723 -e REMOTE_ADB=True -e ANDROID_DEVICES=192.168.0.5:5555,192.168.0.6:5555
+$ docker run -d -p 4723:4723 -e REMOTE_ADB=True -e ANDROID_DEVICES=192.168.0.5:5555,192.168.0.6:5555 -e REMOTE_ADB_POLLING_SEC=60 
 
 ```