Make run.sh|cmd handle update without quitting so containers using them as entrypoints don't exit on update (#1494)

* Only execute post for actions that have one

* Working container runner update with run.sh

* Revert "Only execute post for actions that have one"

This reverts commit 9675941fdb.

* Relaunch the listener without quitting run.cmd

* Fix typo

* Extract most os run.sh logic so we can update it

* Add bash line endings

* Extract the logic from run.cmd

* Add EoF lines

* Add unexpected ERRORLEVEL messages to cmd

* Simplify contract between run and helper

* Remove unused exit

* WIP: run a copy of the helper so it's safe to update

* Throw NonRetryableException if not configured

* Log and format

* Fix typo

* Fix typo

* Use helper template system for bash as well

* Update run.sh

* Remove unnecessary comments

* Use ping instead of timeout

* Use localhost in ping-timeout (n times, w timeout)

Co-authored-by: Ferenc Hammerl <hammerl.ferenc@gmail.com>

src/Misc/layoutroot/run-helper.sh.template

@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# Validate not sudo
+user_id=`id -u`
+if [ $user_id -eq 0 -a -z "$RUNNER_ALLOW_RUNASROOT" ]; then
+    echo "Must not run interactively with sudo"
+    exit 1
+fi
+
+# Run
+shopt -s nocasematch
+
+safe_sleep() {
+    if [ ! -x "$(command -v sleep)" ]; then
+        if [ ! -x "$(command -v ping)" ]; then
+            COUNT="0"
+            while [[ $COUNT != 5000 ]]; do
+                echo "SLEEP" > /dev/null
+                COUNT=$[$COUNT+1]
+            done
+        else
+            ping -c 5 127.0.0.1 > /dev/null
+        fi
+    else
+        sleep 5
+    fi
+}
+
+bin/Runner.Listener run $*
+returnCode=$?
+if [[ $returnCode == 0 ]]; then
+    echo "Runner listener exit with 0 return code, stop the service, no retry needed."
+    exit 0
+elif [[ $returnCode == 1 ]]; then
+    echo "Runner listener exit with terminated error, stop the service, no retry needed."
+    exit 0
+elif [[ $returnCode == 2 ]]; then
+    echo "Runner listener exit with retryable error, re-launch runner in 5 seconds."
+    safe_sleep
+    exit 1
+elif [[ $returnCode == 3 ]]; then
+    # Sleep 5 seconds to wait for the runner update process finish
+    echo "Runner listener exit because of updating, re-launch runner in 5 seconds"
+    safe_sleep
+    exit 1
+elif [[ $returnCode == 4 ]]; then
+    # Sleep 5 seconds to wait for the ephemeral runner update process finish
+    echo "Runner listener exit because of updating, re-launch ephemeral runner in 5 seconds"
+    safe_sleep
+    exit 1
+else
+    echo "Exiting with unknown error code: ${returnCode}"
+    exit 0
+fi