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rc: add ${name}_setup script support

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Run a service-based setup script before running the start command.
Useful for automatic configuration file generation.

Reviewed by:	https://reviews.freebsd.org/D36006
This commit is contained in:
Franco Fichtner 2022-08-15 16:41:31 +02:00 committed by Mariusz Zaborski
parent 530d5f8338
commit c9be47b34d
1 changed files with 11 additions and 3 deletions
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14
libexec/rc/rc.subr
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@ -804,6 +804,8 @@ startmsg()
#
# ${name}_prepend n Command added before ${command}.
#
# ${name}_setup n Command executed before ${command}.
#
# ${name}_login_class n Login class to use, else "daemon".
#
# ${name}_limits n limits(1) to apply to ${command}.
@ -993,8 +995,8 @@ run_rc_command()
_group=\$${name}_group _groups=\$${name}_groups \
_fib=\$${name}_fib _env=\$${name}_env \
_prepend=\$${name}_prepend _login_class=\${${name}_login_class:-daemon} \
_limits=\$${name}_limits _oomprotect=\$${name}_oomprotect \
_env_file=\$${name}_env_file
_limits=\$${name}_limits _oomprotect=\$${name}_oomprotect \
_setup=\$${name}_setup _env_file=\$${name}_env_file
if [ -n "$_env_file" ] && [ -r "${_env_file}" ]; then # load env from file
set -a
@ -1149,6 +1151,12 @@ $command $rc_flags $command_args"
fi
fi
if [ -n "$_setup" ]; then
if ! _run_rc_doit "$_setup"; then
warn "failed to setup ${name}"
fi
fi
# Prepend default limits
_doit="$_cd limits -C $_login_class $_limits $_doit"
@ -2187,7 +2195,7 @@ check_kern_features()
# check_namevarlist var
# Return "0" if ${name}_var is reserved in rc.subr.
_rc_namevarlist="program chroot chdir env flags fib nice user group groups prepend"
_rc_namevarlist="program chroot chdir env flags fib nice user group groups prepend setup"
check_namevarlist()
{
local _v