Removed old TODO file.
Added sysd2v script which converts systemd unit files into init.d style shell scripts.
This commit is contained in:
Jesse Smith
parent
9bc925d0e9
commit
3accc5e30c
16
contrib/TODO
16
contrib/TODO
@ -1,16 +0,0 @@
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There are several things on the wishlist. See also the "wishlist" bugs filed
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against sysvinit in the debian bugs system (http://www.debian.org/Bugs/).
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1. A special target for kbrequest, so that extra CHILDs are
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created (each one needs its own utmp/wtmp bookkeeping)
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2. Extend the initreq.h interface?
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3. Add GNU last long options to last
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4. Write all boot messages to a logfile
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Problem: TIOCCONS ioctl redirects console output, it doesn't copy it.
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I think this is not easily possible without kernel support.
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I do not like the idea of booting with a pseudo tty as console and
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a redirect process behind it writing to both the real console and a
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logfile - too fragile.
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482
contrib/sysd2v.sh
Executable file
482
contrib/sysd2v.sh
Executable file
@ -0,0 +1,482 @@
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#!/bin/sh
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# sysd2v v0.2 -- systemd unit to sysvinit script converter
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# Copyright (C) 2019 Trek http://www.trek.eu.org/devel/sysd2v
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# distributed under the terms of the GNU General Public License 3
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nl="
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"
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# read a systemd unit file and set variables named ini_{section}_{key}
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# usage: read_unit filename instance
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# filename service unit configuration file, '-' to read from stdin
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# instance instance name for template units
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read_unit()
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{
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filename=$1
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instance=$2
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if [ "$filename" != - ]
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then
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inifile_unit_name=${filename##*/}
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inifile_unit_name=${inifile_unit_name%.*}
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fi
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rm_comm='/^[#;]/d'
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concat=':l; /\\$/ { N; s/[[:space:]]*\\\n/ /; tl }'
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subst_inst="s/%[Ii]/$instance/g"
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unit=$(
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cat "$filename" |
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sed "$rm_comm" |
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sed "$concat;$subst_inst"
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)
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section_list=$(
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printf %s "$unit" |
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sed -n 's/^\[\([[:alnum:]]\+\)\].*/\1/p'
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)
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oldifs=$IFS
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IFS=$nl
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for section in $section_list
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do
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get_sect='/^\['"$section"'\]/,/^\[.\+\]/'
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key_list=$(
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printf %s "$unit" |
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sed -n "$get_sect"'s/^\([[:alnum:]]\+\)[[:space:]]*=.*/\1/p' |
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sort -u
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)
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for key in $key_list
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do
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val=$(
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printf %s "$unit" |
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sed -n "$get_sect"'s/^'"$key"'[[:space:]]*=[[:space:]]*\(.*\)/\1/p'
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)
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var=$(
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echo "${section}_$key" |
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tr '[:upper:]' '[:lower:]'
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)
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eval ini_$var=\$val
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# FIXME: only to debug
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echo "ini_$var=$val" >&2
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done
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done
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IFS=$oldifs
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}
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# read a systemd configuration value and write its prefix to stdout
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# usage: get_prefix val
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# val systemd configuration value
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get_prefix () { printf %s "$1" | sed -n 's/^\([-@:+!|]*\).*/\1/p'; }
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# read a boolean value and returns true or false
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# usage: is_true val
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# val boolean value
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is_true () { case "$1" in 1|[Oo][Nn]|[Tt]*|[Yy]*) true;; *) false; esac }
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# read systemd services list and write LSB facilities to stdout
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# usage: get_provides services
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# services list of service units
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get_provides ()
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{
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lst=
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for dep in $1
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do
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lst=${lst:+$lst }${dep%.service}
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done
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printf %s "$lst"
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}
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# read systemd units list and write LSB facilities to stdout
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# usage: get_depends dependencies [ignores]
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# dependencies list of required units
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# ignores units to ignore
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get_depends ()
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{
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lst=
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for dep in $1
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do
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d=
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case $dep in
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local-fs-pre.target) d=mountkernfs;;
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time-sync.target) d=\$time;;
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systemd-modules-load.service) d=kmod;;
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local-fs.target|network-pre.target) d=\$local_fs;;
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systemd-sysctl.service) d=procps;;
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network.target|network-online.target|systemd-networkd.service)
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d=\$network;;
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nss-lookup.target) d=\$named;;
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rpcbind.target|remote-fs-pre.target) d=\$portmap;;
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remote-fs.target|sysinit.target|basic.target) d=\$remote_fs;;
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syslog.service) d=\$syslog;;
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boot-complete.target|multi-user.target|default.target) d=\$all;;
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*.service) d=${dep%.service};;
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*) echo "WARNING: unsupported target '$dep'" >&2
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esac
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ign=${2:+$2 }$lst
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[ -z "$ign" -o -n "${ign%%*"$d"*}" ] &&
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lst=${lst:+$lst }$d
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done
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printf %s "$lst"
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}
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# read LSB facilities list and write runlevel to stdout
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# usage: get_runlevel facilities
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# facilities list of required facilities
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get_runlevel ()
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{
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case $1 in
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*\$remote_fs*) echo 2 3 4 5;;
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*) echo S
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esac
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}
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# write a list of environment files to be executed
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# usage: write_env list
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# list files separated by newlines, with prefix (-)
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write_env ()
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{
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oldifs=$IFS
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IFS=$nl
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for env in $1
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do
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pre=$(get_prefix "$env")
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noerr=
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[ -n "$pre" -a -z "${pre%%*-*}" ] && noerr="[ -r ${env#$pre} ] && "
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printf '%s\n' "$noerr. ${env#$pre}"
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done
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IFS=$oldifs
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[ -n "$env" ] && echo
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}
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# write a list of commands applying systemd executable prefixes
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# usage: write_commands list [run [runpriv]]
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# list commands separated by newlines, with prefixes (-@:+!)
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# run command line to run each command (nice, chrt, ...)
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# runpriv command line to set privileges (runuser, ...)
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write_commands ()
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{
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oldifs=$IFS
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IFS=$nl
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for cmd in $1
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do
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pre=$(get_prefix "$cmd")
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beg=$3
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end=' || return 2'
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if [ -n "$pre" ]
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then
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[ -z "${pre%%*-*}" ] && end=
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[ -z "${pre%%*[+!]*}" ] && beg=
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[ -z "${pre%%*[@:]*}" ] &&
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echo "WARNING: unsupported exec prefix '$pre'" >&2
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fi
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printf ' %s\n' "$2$beg${cmd#$pre}$end"
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done
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IFS=$oldifs
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}
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# read a list of commands separated by newlines and write an override function
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# usage: write_function name [commands]
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# name function name (start_cmd, stop_cmd, ...)
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# commands list of commands, read from stdin if omitted
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write_function ()
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{
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lst=${2-$(cat)}
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[ -n "$lst" ] || return
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[ "$lst" = : ] && printf "do_${1}_override () :\n\n" && return
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end=' true\n'
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[ -z "${lst%%*|| return [0-9]}" -o -z "${lst%%*|| return \$?}" ] && end=
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printf "do_${1}_override ()\n{\n%s\n$end}\n\n" "$lst"
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}
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# write an init-d-script file starting from the ini_* vars (see read_unit)
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# usage: write_init servicename instance
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# servicename name of the service provided
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# instance instance name for template units
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write_init ()
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{
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name=$1
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instance=$2
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if [ "${name%@}" != "$name" ]
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then
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name=$name$instance
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fi
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daemon_pre=$(get_prefix "$ini_service_execstart")
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daemon=${ini_service_execstart#$daemon_pre}
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if [ "${daemon%%[[:space:]]*}" != "$daemon" ]
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then
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daemon_args=${daemon#*[[:space:]]}
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daemon=${daemon%%[[:space:]]*}
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fi
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pidfile=$ini_service_pidfile
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if [ -n "$ini_service_user" ]
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then
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start_args="--user $ini_service_user"
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[ -n "$daemon_pre" -a -z "${daemon_pre%%*[+!]*}" ] ||
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start_args="$start_args --chuid $ini_service_user"
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stop_args="--user $ini_service_user"
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runprivstart="runuser -u $ini_service_user -- "
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is_true "$ini_service_permissionsstartonly" || runpriv=$runprivstart
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fi
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cls=$ini_service_ioschedulingclass
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pri=$ini_service_ioschedulingpriority
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[ -n "$cls$pri" ] &&
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start_args="$start_args --iosched ${cls:-best-effort}${pri:+:$pri}" &&
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run="ionice ${cls:+-c $cls }${pri:+-n $pri }"
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pol=$ini_service_cpuschedulingpolicy
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pri=$ini_service_cpuschedulingpriority
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[ -n "$pol$pri" ] &&
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start_args="$start_args --procsched ${pol:-other}${pri:+:$pri}" &&
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run="${run}chrt ${pol:+--$pol }${pri:-0} "
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[ -n "$ini_service_nice" ] &&
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start_args="$start_args --nicelevel $ini_service_nice" &&
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run="${run}nice -n $ini_service_nice "
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pre=$(get_prefix "$ini_service_workingdirectory")
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workdir=${ini_service_workingdirectory#$pre}
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[ "$workdir" = '~' ] && workdir=\~$ini_service_user
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[ -n "$workdir" ] &&
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start_args="$start_args --chdir $workdir" &&
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chdir="${pre}cd $workdir"
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if [ -z "${service_type:=$ini_service_type}" ]
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then
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if [ -n "$ini_service_busname" ]
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then
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service_type=dbus
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elif [ -n "$ini_service_execstart" ]
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then
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service_type=simple
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else
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service_type=oneshot
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fi
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fi
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if [ "$service_type" != forking ]
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then
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start_args="$start_args --background"
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[ -z "$pidfile" -a "$ini_service_killmode" != none ] &&
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start_args="$start_args --make-pidfile" &&
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pidfile="/run/$name-sysd2v.pid"
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fi
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if [ "$service_type" = notify ]
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then
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start_args="$start_args --notify-await"
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timeout=${ini_service_timeoutstartsec:-$ini_service_timeoutsec}
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timeout=${timeout%s}
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[ -n "${timeout#60}" ] &&
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start_args="$start_args --notify-timeout $timeout"
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[ -n "$timeout" -a -z "${timeout%%*[^0-9]*}" ] &&
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echo "WARNING: unsupported timeout '$timeout'" >&2
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elif [ "$service_type" = dbus ]
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then
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: TODO
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fi
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signal=${ini_service_killsignal#SIG}
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timeout=${ini_service_timeoutstopsec:-$ini_service_timeoutsec}
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timeout=${timeout%s}
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[ -n "${signal#TERM}" -o -n "${timeout#90}" ] &&
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stop_args="$stop_args --retry=${signal:-TERM}/${timeout:-90}/KILL/5"
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limitnofile=$ini_service_limitnofile
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[ "$limitnofile" = infinity ] && limitnofile=unlimited
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execstop=$ini_service_execstop
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if [ "$service_type" != oneshot ]
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then
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[ "$pidfile" = "/var/run/${daemon##*/}.pid" ] && unset pidfile
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[ "$name" = "${daemon##*/}" ] && unset name
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[ -n "$daemon_args" -a -z "${daemon_args%%*[\"\\]*}" ] &&
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echo "WARNING: DAEMON_ARGS needs to be escaped" >&2
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errcheck=' || return $?'
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if [ -n "$daemon_pre" ]
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then
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[ -z "${daemon_pre%%*-*}" ] && errcheck=
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[ -z "${daemon_pre%%*[@:]*}" ] &&
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echo "WARNING: unsupported exec prefix '$daemon_pre'" >&2
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fi
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# TODO: test if already running before start (pretest="+do_status_cmd")
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[ -n "$ini_service_execstartpre$ini_service_execstartpost" -o \
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-z "$errcheck" ] &&
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execstart="-+do_start_cmd$errcheck"
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errcheck=' || return $?'
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[ -n "$execstop" ] && errcheck=
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[ -n "$execstop$ini_service_execstoppost" -a \
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"$ini_service_killmode" != none ] &&
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killstop="-do_stop_cmd$errcheck"
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[ -n "$timeout" -a -z "${timeout%%*[^0-9]*}" ] &&
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echo "WARNING: unsupported timeout '$timeout'" >&2
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else
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daemon=none
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pidfile=none
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: ${name:=SERVICE_NAME}
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unset daemon_args start_args stop_args
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execstart=$ini_service_execstart
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runstart=$run
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fi
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start_args=${start_args# }
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stop_args=${stop_args# }
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aliases=$(get_provides "$ini_install_alias")
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[ -z "$ini_unit_defaultdependencies" ] ||
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is_true "$ini_unit_defaultdependencies" &&
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defdep=sysinit.target
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req_start=$(get_depends "$ini_unit_requires $defdep")
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should_start=$(get_depends "$ini_unit_wants $ini_unit_after" "$req_start")
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default_start=$(get_runlevel "$req_start $should_start")
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[ "$default_start" = S ] && default_stop='0 6' || default_stop='0 1 6'
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[ -z "$execstop$ini_service_execstoppost" ] &&
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[ "$service_type" = oneshot -o "$ini_service_killmode" = none ] &&
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default_stop=
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[ "$default_start" = S ] && ignore=\$remote_fs
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start_before=$(get_depends "$ini_unit_requiredby $ini_install_wantedby
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$ini_unit_before" "$req_start $should_start \$all $ignore")
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cat <<EOF
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#!/bin/sh
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# Generated by sysd2v v0.2 -- http://www.trek.eu.org/devel/sysd2v
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# kFreeBSD do not accept scripts as interpreters, using #!/bin/sh and sourcing.
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if [ true != "\$INIT_D_SCRIPT_SOURCED" ] ; then
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set "\$0" "\$@"; INIT_D_SCRIPT_SOURCED=true . /lib/init/init-d-script
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fi
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### BEGIN INIT INFO
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# Provides: ${name:-${daemon##*/}}${aliases:+ $aliases}
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# Required-Start: $req_start
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# Required-Stop: ${default_stop:+$req_start}
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${should_start:+# Should-Start: $should_start
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${default_stop:+# Should-Stop: $should_start
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}}${start_before:+# X-Start-Before: $start_before
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${default_stop:+# X-Stop-After: $start_before
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}}# Default-Start: $default_start
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# Default-Stop: $default_stop
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# Description: ${ini_unit_description:-SERVICE_DESCRIPTION}
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### END INIT INFO
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EOF
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write_env "$ini_service_environmentfile"
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cat <<EOF
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${name:+DESC=\"$name\"
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}DAEMON=$daemon
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${daemon_args:+DAEMON_ARGS=\"$daemon_args\"
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}${pidfile:+PIDFILE=$pidfile
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}${start_args:+START_ARGS=\"$start_args\"
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}${stop_args:+STOP_ARGS=\"$stop_args\"
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}${limitnofile:+ulimit -n $limitnofile
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}${ini_service_umask:+umask $ini_service_umask
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}
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EOF
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if [ -n "$ini_service_execstartpre$execstart$ini_service_execstartpost" ]
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then
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{
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write_commands "$chdir"
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write_commands "$ini_service_execstartpre" "$run" "$runpriv"
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write_commands "$execstart" "$runstart" "$runprivstart"
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write_commands "$ini_service_execstartpost" "$run" "$runpriv"
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} | write_function start_cmd
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else
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[ "$service_type" = oneshot ] && write_function start :
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fi
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if [ -n "$execstop$ini_service_execstoppost" ]
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then
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{
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write_commands "$chdir"
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write_commands "$execstop" "$run" "$runpriv"
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write_commands "$killstop"
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write_commands "$ini_service_execstoppost" "$run" "$runpriv"
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} | write_function stop_cmd
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else
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[ "$service_type" = oneshot -o "$ini_service_killmode" = none ] &&
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write_function stop :
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fi
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if [ "$ini_service_execreload" = '/bin/kill -HUP $MAINPID' -a \
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-z "$run$runpriv" ]
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then
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printf 'alias do_reload=do_reload_sigusr1\n\n'
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elif [ -n "$ini_service_execreload" ]
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then
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{
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write_commands "$chdir"
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write_commands "$ini_service_execreload" "$run" "$runpriv"
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} | write_function reload_cmd
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cat <<"EOF"
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do_reload ()
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{
|
||||
log_daemon_msg "Reloading $DESC configuration files" "$NAME"
|
||||
MAINPID=$(cat $PIDFILE)
|
||||
do_reload_cmd_override
|
||||
log_end_msg $?
|
||||
}
|
||||
EOF
|
||||
fi
|
||||
|
||||
[ "$service_type" = oneshot ] && write_function status :
|
||||
}
|
||||
|
||||
|
||||
# parse command line
|
||||
while getopts i:n: opt
|
||||
do
|
||||
case $opt in
|
||||
i) instance=$OPTARG;;
|
||||
n) name=$OPTARG;;
|
||||
?) printf "Usage: %s [-i instance] [-n servicename] [filename]\n" "$0"
|
||||
exit 2;;
|
||||
esac
|
||||
done
|
||||
|
||||
: ${instance=INSTANCE_NAME}
|
||||
shift $(($OPTIND - 1))
|
||||
|
||||
|
||||
# convert unit file
|
||||
read_unit "${1:--}" "$instance"
|
||||
write_init "${name-$inifile_unit_name}" "$instance"
|
||||
|
||||
@ -7,6 +7,9 @@ sysvinit (2.97) unreleased; urgency=low
|
||||
* Code clean-up and making sure we avoid freeing unused memory.
|
||||
Patch provided by David Hoyer.
|
||||
|
||||
* Added shell script from Trek which converts systemd unit files
|
||||
into init.d style scripts.
|
||||
|
||||
sysvinit (2.96) released; urgency=low
|
||||
|
||||
[ Jesse Smith ]
|
||||
|
||||
Loading…
Reference in New Issue
Block a user