NEOS background updater (#1892)

old-commit-hash: cb5a2996e75658ac61f057fb729c229a554c551e

launch_chffrplus.sh

@@ -1,23 +1,13 @@
 #!/usr/bin/bash
 
-export OMP_NUM_THREADS=1
-export MKL_NUM_THREADS=1
-export NUMEXPR_NUM_THREADS=1
-export OPENBLAS_NUM_THREADS=1
-export VECLIB_MAXIMUM_THREADS=1
-
 if [ -z "$BASEDIR" ]; then
   BASEDIR="/data/openpilot"
 fi
 
-if [ -z "$PASSIVE" ]; then
-  export PASSIVE="1"
-fi
+source "$BASEDIR/launch_env.sh"
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
 
-STAGING_ROOT="/data/safe_staging"
-
 function launch {
   # Wifi scan
   wpa_cli IFNAME=wlan0 SCAN
@@ -54,6 +44,7 @@ function launch {
           git submodule foreach --recursive git reset --hard
 
           echo "Restarting launch script ${LAUNCHER_LOCATION}"
+          unset REQUIRED_NEOS_VERSION
           exec "${LAUNCHER_LOCATION}"
         else
           echo "openpilot backup found, not updating"
@@ -81,24 +72,20 @@ function launch {
   [ -d "/proc/irq/736" ] && echo 3 > /proc/irq/736/smp_affinity_list # USB for OP3T
 
 
-  # Remove old NEOS update file
-  # TODO: move this code to the updater
-  if [ -d /data/neoupdate ]; then
-    rm -rf /data/neoupdate
-  fi
-
   # Check for NEOS update
-  if [ $(< /VERSION) != "14" ]; then
+  if [ $(< /VERSION) != "$REQUIRED_NEOS_VERSION" ]; then
     if [ -f "$DIR/scripts/continue.sh" ]; then
       cp "$DIR/scripts/continue.sh" "/data/data/com.termux/files/continue.sh"
     fi
 
     if [ ! -f "$BASEDIR/prebuilt" ]; then
-      echo "Clearing build products and resetting scons state prior to NEOS update"
-      cd $BASEDIR && scons --clean
-      rm -rf /tmp/scons_cache
-      rm -r $BASEDIR/.sconsign.dblite
+      # Clean old build products, but preserve the scons cache
+      cd $DIR
+      scons --clean
+      git clean -xdf
+      git submodule foreach --recursive git clean -xdf
     fi
+
     "$DIR/installer/updater/updater" "file://$DIR/installer/updater/update.json"
   else
     if [[ $(uname -v) == "#1 SMP PREEMPT Wed Jun 10 12:40:53 PDT 2020" ]]; then