Date: Mon, 7 Dec 2009 06:25:19 +0000 (UTC) From: Hiroki Sato <hrs@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r200205 - stable/8/etc Message-ID: <200912070625.nB76PJli043796@svn.freebsd.org>
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Author: hrs Date: Mon Dec 7 06:25:19 2009 New Revision: 200205 URL: http://svn.freebsd.org/changeset/base/200205 Log: MFC: r197144: - Add an extension of set_rcvar(), a new function set_rcvar_obsolete(), and $desc. The set_rcvar_obsolete() is to mark a variable as obsolete and define the new one. More specifically, a warning is displayed when a variable is removed or changed in the source tree and the user still defines the old one. Modified: stable/8/etc/rc.subr Directory Properties: stable/8/etc/ (props changed) Modified: stable/8/etc/rc.subr ============================================================================== --- stable/8/etc/rc.subr Mon Dec 7 06:05:36 2009 (r200204) +++ stable/8/etc/rc.subr Mon Dec 7 06:25:19 2009 (r200205) @@ -72,37 +72,63 @@ esac # functions # --------- +# set_rcvar [var] [defval] [desc] # -# set_rcvar base_var -# Set the variable name enabling a specific service. -# FreeBSD uses ${service}_enable, while NetBSD uses -# just the name of the service. For example: -# FreeBSD: sendmail_enable="YES" -# NetBSD : sendmail="YES" -# $1 - if $name is not the base to work of off, specify -# a different one +# Echo or define a rc.conf(5) variable name. Global variable +# $rcvars is used. +# +# If no argument is specified, echo "${name}_enable". +# +# If only a var is specified, echo "${var}_enable". +# +# If var and defval are specified, the ${var} is defined as +# rc.conf(5) variable and the default value is ${defvar}. An +# optional argument $desc can also be specified to add a +# description for that. # set_rcvar() { - if [ -z "$1" ]; then - base_var=${name} - else - base_var="$1" - fi - - case ${OSTYPE} in - FreeBSD) - echo ${base_var}_enable + case $# in + 0) + echo ${name}_enable ;; - NetBSD) - echo ${base_var} + 1) + echo ${1}_enable ;; *) - echo 'XXX' + debug "rcvar_define: \$$1=$2 is added" \ + " as a rc.conf(5) variable." + + local _var + _var=$1 + rcvars="${rcvars# } $_var" + eval ${_var}_defval=\"$2\" + shift 2 + # encode multiple lines of _desc + for l in "$@"; do + eval ${_var}_desc=\"\${${_var}_desc#^^}^^$l\" + done + eval ${_var}_desc=\"\${${_var}_desc#^^}\" ;; esac } +# set_rcvar_obsolete oldvar [newvar] [msg] +# Define obsolete variable. +# Global variable $rcvars_obsolete is used. +# +set_rcvar_obsolete() +{ + local _var + _var=$1 + debug "rcvar_obsolete: \$$1(old) -> \$$2(new) is defined" + + rcvars_obsolete="${rcvars_obsolete# } $1" + eval ${1}_newvar=\"$2\" + shift 2 + eval ${_var}_obsolete_msg=\"$*\" +} + # # force_depend script # Force a service to start. Intended for use by services @@ -415,6 +441,8 @@ check_startmsgs() # command_interpreter n If not empty, command is interpreted, so # call check_{pidfile,process}() appropriately. # +# desc n Description of script. +# # extra_commands n List of extra commands supported. # # pidfile n If set, use check_pidfile $pidfile $command, @@ -588,7 +616,7 @@ run_rc_command() esac eval _override_command=\$${name}_program - command=${_override_command:-$command} + command=${command:-${_override_command}} _keywords="start stop restart rcvar $extra_commands" rc_pid= @@ -792,14 +820,49 @@ $command $rc_flags $command_args" ;; rcvar) - echo "# $name" - if [ -n "$rcvar" ]; then - if checkyesno ${rcvar}; then - echo "${rcvar}=YES" - else - echo "${rcvar}=NO" - fi + echo -n "# $name" + if [ -n "$desc" ]; then + echo " : $desc" + else + echo "" fi + echo "#" + # Get unique vars in $rcvar $rcvars + for _v in $rcvar $rcvars; do + case $v in + $_v\ *|\ *$_v|*\ $_v\ *) ;; + *) v="${v# } $_v" ;; + esac + done + + # Display variables. + for _v in $v; do + if [ -z "$_v" ]; then + continue + fi + + eval _desc=\$${_v}_desc + eval _defval=\$${_v}_defval + _h="-" + + eval echo \"$_v=\\\"\$$_v\\\"\" + # decode multiple lines of _desc + while [ -n "$_desc" ]; do + case $_desc in + *^^*) + echo "# $_h ${_desc%%^^*}" + _desc=${_desc#*^^} + _h=" " + ;; + *) + echo "# $_h ${_desc}" + break + ;; + esac + done + echo "# (default: \"$_defval\")" + done + echo "" ;; *) @@ -910,7 +973,8 @@ run_rc_script() unset name command command_args command_interpreter \ extra_commands pidfile procname \ - rcvar required_dirs required_files required_vars + rcvar rcvars rcvars_obsolete required_dirs required_files \ + required_vars eval unset ${_arg}_cmd ${_arg}_precmd ${_arg}_postcmd case "$_file" in @@ -941,6 +1005,7 @@ run_rc_script() # load_rc_config() { + local _name _var _defval _v _msg _new _name=$1 if [ -z "$_name" ]; then err 3 'USAGE: load_rc_config name' @@ -967,6 +1032,36 @@ load_rc_config() # Old variable names support # [ -n "$enable_quotas" ] && quota_enable="$enable_quotas" + + # Set defaults if defined. + for _var in $rcvar $rcvars; do + _defval=`eval echo "\\\$${_var}_defval"` + if [ -n "$_defval" ]; then + eval : \${$_var:=\$${_var}_defval} + fi + done + + # check obsolete rc.conf variables + for _var in $rcvars_obsolete; do + _v=`eval echo \\$$_var` + _msg=`eval echo \\$${_var}_obsolete_msg` + _new=`eval echo \\$${_var}_newvar` + case $_v in + "") + ;; + *) + if [ -z "$_new" ]; then + _msg="Ignored." + else + eval $_new=\"\$$_var\" + if [ -z "$_msg" ]; then + _msg="Use \$$_new instead." + fi + fi + warn "\$$_var is obsolete. $_msg" + ;; + esac + done } #
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