openrc/sh/functions.sh.in

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# Allow any sh script to work with einfo functions and friends
# We also provide a few helpful functions for other programs to use
# Copyright (c) 2007-2015 The OpenRC Authors.
# See the Authors file at the top-level directory of this distribution and
# https://github.com/OpenRC/openrc/blob/master/AUTHORS
#
# This file is part of OpenRC. It is subject to the license terms in
# the LICENSE file found in the top-level directory of this
# distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
# This file may not be copied, modified, propagated, or distributed
# except according to the terms contained in the LICENSE file.
RC_GOT_FUNCTIONS="yes"
eindent()
{
: $(( EINFO_INDENT = ${EINFO_INDENT:-0} + 2 ))
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[ "$EINFO_INDENT" -gt 40 ] && EINFO_INDENT=40
export EINFO_INDENT
}
eoutdent()
{
: $(( EINFO_INDENT = ${EINFO_INDENT:-0} - 2 ))
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[ "$EINFO_INDENT" -lt 0 ] && EINFO_INDENT=0
return 0
}
yesno()
{
[ -z "$1" ] && return 1
# Check the value directly so people can do:
# yesno ${VAR}
case "$1" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) return 0;;
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0) return 1;;
esac
# Check the value of the var so people can do:
# yesno VAR
# Note: this breaks when the var contains a double quote.
local value=
eval value=\"\$$1\"
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case "$value" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) return 0;;
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0) return 1;;
*) vewarn "\$$1 is not set properly"; return 2;;
esac
}
rc_runlevel()
{
rc-status --runlevel
}
_sanitize_path()
{
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local IFS=":" p= path=
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for p in $PATH; do
case "$p" in
@LIBEXECDIR@/bin|@LIBEXECDIR@/sbin);;
@BINDIR@|@SBINDIR@|/usr/bin|/usr/sbin);;
@PKG_PREFIX@/bin|@PKG_PREFIX@/sbin);;
@LOCAL_PREFIX@/bin|@LOCAL_PREFIX@/sbin);;
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*) path="$path${path:+:}$p";;
esac
done
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echo "$path"
}
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# Allow our scripts to support zsh
if [ -n "$ZSH_VERSION" ]; then
emulate sh
NULLCMD=:
alias -g '${1+"$@"}'='"$@"'
setopt NO_GLOB_SUBST
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fi
# Make a sane PATH
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_PREFIX=@PREFIX@
_PKG_PREFIX=@PKG_PREFIX@
_LOCAL_PREFIX=@LOCAL_PREFIX@
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_LOCAL_PREFIX=${_LOCAL_PREFIX:-/usr/local}
_PATH=@LIBEXECDIR@/bin
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case "$_PREFIX" in
"$_PKG_PREFIX"|"$_LOCAL_PREFIX") ;;
*) _PATH="$_PATH:$_PREFIX/bin:$_PREFIX/sbin";;
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esac
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_PATH="$_PATH":/bin:/sbin:/usr/bin:/usr/sbin
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if [ -n "$_PKG_PREFIX" ]; then
_PATH="$_PATH:$_PKG_PREFIX/bin:$_PKG_PREFIX/sbin"
fi
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if [ -n "$_LOCAL_PREFIX" ]; then
_PATH="$_PATH:$_LOCAL_PREFIX/bin:$_LOCAL_PREFIX/sbin"
fi
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_path="$(_sanitize_path "$PATH")"
PATH="$_PATH${_path:+:}$_path" ; export PATH
unset _sanitize_path _PREFIX _PKG_PREFIX _LOCAL_PREFIX _PATH _path
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for arg; do
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case "$arg" in
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--nocolor|--nocolour|-C)
EINFO_COLOR="NO" ; export EINFO_COLOR
;;
esac
done
if [ -t 1 ] && yesno "${EINFO_COLOR:-YES}"; then
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if [ -z "$GOOD" ]; then
eval $(eval_ecolors)
fi
else
# We need to have shell stub functions so our init scripts can remember
# the last ecmd
for _e in ebegin eend error errorn einfo einfon ewarn ewarnn ewend \
vebegin veend veinfo vewarn vewend; do
eval "$_e() { local _r; command $_e \"\$@\"; _r=\$?; \
EINFO_LASTCMD=$_e; export EINFO_LASTCMD ; return \$_r; }"
done
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unset _e
fi