diff options
author | Roy Marples <roy@marples.name> | 2007-04-05 11:18:42 +0000 |
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committer | Roy Marples <roy@marples.name> | 2007-04-05 11:18:42 +0000 |
commit | 5af58b45146ab5253ca964738f4e45287bf963d4 (patch) | |
tree | 68d3a9a61fa55dd7fe273db776c375f797edaa5b /sh/functions.sh |
Rewrite the core parts in C. We now provide librc so other programs can
query runlevels, services and state without using bash. We also provide
libeinfo so other programs can easily use our informational functions.
As such, we have dropped the requirement of using bash as the init script
shell. We now use /bin/sh and have strived to make the scripts as portable
as possible. Shells that work are bash and dash. busybox works provided
you disable s-s-d. If you have WIPE_TMP set to yes in conf.d/bootmisc you
should disable find too.
zsh and ksh do not work at this time.
Networking support is currently being re-vamped also as it was heavily bash
array based. As such, a new config format is available like so
config_eth0="1.2.3.4/24 5.6.7.8/16"
or like so
config_eth0="'1.2.3.4 netmask 255.255.255.0' '5.6.7.8 netmask 255.255.0.0'"
We will still support the old bash array format provided that /bin/sh IS
a link it bash.
ChangeLog for baselayout-1 can be found in our SVN repo.
Diffstat (limited to 'sh/functions.sh')
-rw-r--r-- | sh/functions.sh | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/sh/functions.sh b/sh/functions.sh new file mode 100644 index 00000000..d1327ad5 --- /dev/null +++ b/sh/functions.sh @@ -0,0 +1,157 @@ +# Copyright 1999-2007 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +# Please keep this useable by every shell in portage + +RC_GOT_FUNCTIONS="yes" + +eindent() { + if [ -n "${RC_EBUFFER}" ] ; then + "${RC_LIBDIR}"/bin/eindent + else + RC_EINDENT=$((${RC_EINDENT:-0} + 2)) + [ "${RC_EINDENT}" -gt 40 ] && RC_EINDENT=40 + export RC_EINDENT + fi +} + +eoutdent() { + if [ -n "${RC_EBUFFER}" ] ; then + "${RC_LIBDIR}"/bin/eoutdent + else + RC_EINDENT=$((${RC_EINDENT:-0} - 2)) + [ "${RC_EINDENT}" -lt 0 ] && RC_EINDENT=0 + fi + return 0 +} + +# void esyslog(char* priority, char* tag, char* message) +# +# use the system logger to log a message +# +esyslog() { + local pri= tag= + + if [ -x /usr/bin/logger ] ; then + pri="$1" + tag="$2" + + shift 2 + [ -z "$*" ] && return 0 + + /usr/bin/logger -p "${pri}" -t "${tag}" -- "$*" + fi + + return 0 +} + +# Safer way to list the contents of a directory, +# as it do not have the "empty dir bug". +# +# char *dolisting(param) +# +# print a list of the directory contents +# +# NOTE: quote the params if they contain globs. +# also, error checking is not that extensive ... +# +dolisting() { + local x= y= mylist= mypath="$*" + + # Here we use file globbing instead of ls to save on forking + for x in ${mypath} ; do + [ ! -e "${x}" ] && continue + + if [ -L "${x}" -o -f "${x}" ] ; then + mylist="${mylist} "${x} + elif [ -d "${x}" ] ; then + [ "${x%/}" != "${x}" ] && x=${x%/} + + for y in "${x}"/* ; do + [ -e "${y}" ] && mylist="${mylist} ${y}" + done + fi + done + + echo "${mylist# *}" +} + +# bool is_older_than(reference, files/dirs to check) +# +# return 0 if any of the files/dirs are newer than +# the reference file +# +# EXAMPLE: if is_older_than a.out *.o ; then ... +is_older_than() { + local x= ref="$1" + shift + + for x in "$@" ; do + [ -e "${x}" ] || continue + # We need to check the mtime if it's a directory too as the + # contents may have changed. + [ "${x}" -nt "${ref}" ] && return 0 + [ -d "${x}" ] && is_older_than "${ref}" "${x}"/* && return 0 + done + + return 1 +} + +uniqify() { + local result= + while [ -n "$1" ] ; do + case " ${result} " in + *" $1 "*) ;; + *) result="${result} $1" ;; + esac + shift + done + echo "${result# *}" +} + +KV_to_int() { + [ -z $1 ] && return 1 + + local KV_MAJOR=${1%%.*} + local x=${1#*.} + local KV_MINOR=${x%%.*} + x=${1#*.*.} + local KV_MICRO=${x%%-*} + local KV_int=$((${KV_MAJOR} * 65536 + ${KV_MINOR} * 256 + ${KV_MICRO} )) + + # We make version 2.2.0 the minimum version we will handle as + # a sanity check ... if its less, we fail ... + [ "${KV_int}" -lt 131584 ] && return 1 + + echo "${KV_int}" +} + +# Setup a basic $PATH. Just add system default to existing. +# This should solve both /sbin and /usr/sbin not present when +# doing 'su -c foo', or for something like: PATH= rcscript start +case "${PATH}" in + /lib/rcscripts/bin:/bin:/sbin:/usr/bin:/usr/sbin) ;; + /lib/rcscripts/bin:/bin:/sbin:/usr/bin:/usr/sbin:*) ;; + *) export PATH="/lib/rcscripts/bin:/bin:/sbin:/usr/bin:/usr/sbin:${PATH}" ;; +esac + +for arg in "$@" ; do + case "${arg}" in + --nocolor|--nocolour) + export RC_NOCOLOR="yes" + ;; + esac +done + +if [ "${RC_NOCOLOR}" != "yes" -a -z "${GOOD}" ] ; then + if color_terminal ; then + GOOD=$'\e[32;01m' + WARN=$'\e[33;01m' + BAD=$'\e[31;01m' + HILITE=$'\e[36;01m' + BRACKET=$'\e[34;01m' + NORMAL=$'\e[0m' + fi +fi + +# vim: set ts=4 : |