#!/bin/sh
# vmix agent: LaunchDaemon that runs at every boot as root (installed by the vmix
# agent pkg via startosinstall --installpackage). If a volume named VMIX carrying
# vmix-run.sh is attached, run it, record the result on the volume and power off.
# Without the volume it is a no-op (normal boot). Counterpart of the Windows Audit
# Mode RunOnce script; the generalize step removes it once the image is sealed.
LOG=/var/log/vmix-agent.log
exec >>"$LOG" 2>&1
echo "=== vmix agent: $(date) ==="
# The agent pkg bootstraps this daemon during the OS install (to approve it past
# Background Task Management, so launchd runs it at first boot). Don't do the job
# in that installer environment — only on the installed system's first boot.
if pgrep -x bootinstalld >/dev/null 2>&1 || pgrep -qx "Installer Progress" 2>/dev/null \
   || [ -d /System/Volumes/Update/mnt1 ]; then
  echo "vmix agent: OS installer is running, skipping"
  exit 0
fi
# let DiskArbitration settle so the VMIX volume is mountable
sleep 5
V=/Volumes/VMIX
i=0
while [ ! -f "$V/vmix-run.sh" ] && [ $i -lt 30 ]; do
  diskutil mount VMIX >/dev/null 2>&1
  sleep 2
  i=$((i + 1))
done
if [ ! -f "$V/vmix-run.sh" ]; then
  echo "vmix agent: no VMIX volume, normal boot"
  exit 0
fi
echo "vmix agent: running vmix-run.sh"
cd "$V" || exit 1
sh "$V/vmix-run.sh" >"$V/vmix-run.log" 2>&1
rc=$?
echo "vmix agent: vmix-run.sh exited $rc"
echo "$rc" >"$V/vmix-run.status"
cp "$LOG" "$V/vmix-agent.log" 2>/dev/null
cp /var/log/vmix-agent-install.log "$V/vmix-agent-install.log" 2>/dev/null
sync
sleep 2
diskutil unmount force "$V" >/dev/null 2>&1
shutdown -h now