#466 / #417 - shell script to kill TagUI processes (#480)

Follow-up update to previous 3 commits below by improving to remove Linux warning message -

Making a commit to improve on the existing script to kill TagUI processes.

For eg if Ctrl+C is used to kill TagUI prematurely, TagUI main process would lose the control to do clean-up of integrations (SikuliX, R, Python, Chrome) and Chrome browser.

This shell script (for all the 3 OSes) will kill those processes to free up memory and allows TagUI to start running from a clean state.

These actions are not done by default when TagUI is launched, as it is expected that TagUI exits cleanly. Otherwise cleaning up all processes by default will hide potential issues should they arise and they will end up not getting reported.

src/end_processes

@@ -5,7 +5,7 @@
 # works by scanning processes for tagui keywords and killing them one by one
 
 while true; do
-    php_process_id="$(ps -x | grep tagui_chrome\.php | grep -v 'grep tagui_chrome\.php' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    php_process_id="$(ps x | grep tagui_chrome\.php | grep -v 'grep tagui_chrome\.php' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$php_process_id" ]; then
         kill $php_process_id > /dev/null 2>&1
     else
@@ -14,7 +14,7 @@ while true; do
 done
 
 while true; do
-    chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$chrome_process_id" ]; then
         kill $chrome_process_id > /dev/null 2>&1
     else
@@ -23,7 +23,7 @@ while true; do
 done
 
 while true; do
-    sikuli_process_id="$(ps -x | grep tagui\.sikuli | grep -v 'grep tagui\.sikuli' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    sikuli_process_id="$(ps x | grep tagui\.sikuli | grep -v 'grep tagui\.sikuli' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$sikuli_process_id" ]; then
         kill $sikuli_process_id > /dev/null 2>&1
     else
@@ -32,7 +32,7 @@ while true; do
 done
 
 while true; do
-    python_process_id="$(ps -x | grep tagui_py\.py | grep -v 'grep tagui_py\.py' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    python_process_id="$(ps x | grep tagui_py\.py | grep -v 'grep tagui_py\.py' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$python_process_id" ]; then
         kill $python_process_id > /dev/null 2>&1
     else
@@ -41,7 +41,7 @@ while true; do
 done
 
 while true; do
-    r_process_id="$(ps -x | grep tagui_r\.R | grep -v 'grep tagui_r\.R' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    r_process_id="$(ps x | grep tagui_r\.R | grep -v 'grep tagui_r\.R' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$r_process_id" ]; then
         kill $r_process_id > /dev/null 2>&1
     else
@@ -50,7 +50,7 @@ while true; do
 done
 
 while true; do
-    tagui_process_id="$(ps -x | grep tagui/src | grep -v 'grep tagui/src' | grep -v 'end_processes' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    tagui_process_id="$(ps x | grep tagui/src/ | grep -v 'grep tagui/src/' | grep -v 'end_processes' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$tagui_process_id" ]; then
         kill $tagui_process_id > /dev/null 2>&1
     else

src/tagui

@@ -297,14 +297,14 @@ if [ "$chrome_started" == "Darwin" ]; then
 if ! [ -f "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" ]; then
 echo "ERROR - cannot find Chrome at \"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome\""
 echo "Chrome is at a non-standard location on your macOS, raise an issue on TagUI GitHub page"; exit 1; fi
-chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
 if [ -n "$chrome_process_id" ]; then kill $chrome_process_id; fi
 /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome $chrome_switches $window_size $headless_switch > /dev/null 2>&1 &
 else
 if ! type "$chrome_command" > /dev/null; then
 echo "ERROR - cannot find Chrome command \"$chrome_command\""
 echo "update chrome_command setting in tagui/src/tagui and make sure symlink to command is created"; exit 1; fi
-chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
 if [ -n "$chrome_process_id" ]; then kill $chrome_process_id; fi
 $chrome_command $chrome_switches $window_size $headless_switch > /dev/null 2>&1 &
 fi
@@ -334,10 +334,10 @@ if [ -f "tagui_chrome.in" ]; then echo "finish" > tagui_chrome.in; fi
 
 # kill chrome processes by checking which os the processes are started on 
 if [ "$chrome_started" == "Darwin" ] && [ "$tagui_speed_mode" == false ]; then
-chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
 if [ -n "$chrome_process_id" ]; then kill $chrome_process_id; fi
 else if [ -n "$chrome_started" ] && [ "$tagui_speed_mode" == false ]; then
-chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
 if [ -n "$chrome_process_id" ]; then kill $chrome_process_id; fi
 fi; fi