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#!/usr/bin/env bash
script_cmdline ()
{
local param
for param in $(< /proc/cmdline); do
case "${param}" in
script=*) echo "${param#*=}" ; return 0 ;;
esac
done
}
automated_script ()
{
local script rt
script="$(script_cmdline)"
if [[ -n "${script}" && ! -x /tmp/startup_script ]]; then
if [[ "${script}" =~ ^((http|https|ftp)://) ]]; then
# there's no synchronization for network availability before executing this script
printf '%s: waiting for network-online.target\n' "$0"
until systemctl --quiet is-active network-online.target; do
sleep 1
done
printf '%s: downloading %s\n' "$0" "${script}"
curl "${script}" --location --retry-connrefused --retry 10 -s -o /tmp/startup_script
rt=$?
else
cp "${script}" /tmp/startup_script
rt=$?
fi
if [[ ${rt} -eq 0 ]]; then
chmod +x /tmp/startup_script
printf '%s: executing automated script\n' "$0"
# note that script is executed when other services (like pacman-init) may be still in progress, please
# synchronize to "systemctl is-system-running --wait" when your script depends on other services
/tmp/startup_script
fi
fi
}
if [[ $(tty) == "/dev/tty1" ]]; then
automated_script
fi
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