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#!/bin/bash
# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
portageq() {
PYTHONPATH=${PORTAGE_PYM_PATH}${PYTHONPATH:+:}${PYTHONPATH} \
"${PORTAGE_PYTHON:-/usr/bin/python}" "${PORTAGE_BIN_PATH}/portageq" "$@"
}
register_die_hook() {
local x
for x in $* ; do
has $x $EBUILD_DEATH_HOOKS || \
export EBUILD_DEATH_HOOKS="$EBUILD_DEATH_HOOKS $x"
done
}
register_success_hook() {
local x
for x in $* ; do
has $x $EBUILD_SUCCESS_HOOKS || \
export EBUILD_SUCCESS_HOOKS="$EBUILD_SUCCESS_HOOKS $x"
done
}
strip_duplicate_slashes() {
if [[ -n $1 ]] ; then
local removed=$1
while [[ ${removed} == *//* ]] ; do
removed=${removed//\/\///}
done
echo ${removed}
fi
}
# this is a function for removing any directory matching a passed in pattern from
# PATH
remove_path_entry() {
save_IFS
IFS=":"
stripped_path="${PATH}"
while [ -n "$1" ]; do
cur_path=""
for p in ${stripped_path}; do
if [ "${p/${1}}" == "${p}" ]; then
cur_path="${cur_path}:${p}"
fi
done
stripped_path="${cur_path#:*}"
shift
done
restore_IFS
PATH="${stripped_path}"
}
# Set given variables unless these variable have been already set (e.g. during emerge
# invocation) to values different than values set in make.conf.
set_unless_changed() {
if [[ $# -lt 1 ]]; then
die "${FUNCNAME}() requires at least 1 argument: VARIABLE=VALUE"
fi
local argument value variable
for argument in "$@"; do
if [[ ${argument} != *=* ]]; then
die "${FUNCNAME}(): Argument '${argument}' has incorrect syntax"
fi
variable="${argument%%=*}"
value="${argument#*=}"
if eval "[[ \${${variable}} == \$(env -u ${variable} portageq envvar ${variable}) ]]"; then
eval "${variable}=\"\${value}\""
fi
done
}
# Unset given variables unless these variable have been set (e.g. during emerge
# invocation) to values different than values set in make.conf.
unset_unless_changed() {
if [[ $# -lt 1 ]]; then
die "${FUNCNAME}() requires at least 1 argument: VARIABLE"
fi
local variable
for variable in "$@"; do
if eval "[[ \${${variable}} == \$(env -u ${variable} portageq envvar ${variable}) ]]"; then
unset ${variable}
fi
done
}
KV_major() {
[[ -z $1 ]] && return 1
local KV=$@
echo "${KV%%.*}"
}
KV_minor() {
[[ -z $1 ]] && return 1
local KV=$@
KV=${KV#*.}
echo "${KV%%.*}"
}
KV_micro() {
[[ -z $1 ]] && return 1
local KV=$@
KV=${KV#*.*.}
echo "${KV%%[^[:digit:]]*}"
}
KV_to_int() {
[[ -z $1 ]] && return 1
local KV_MAJOR=$(KV_major "$1")
local KV_MINOR=$(KV_minor "$1")
local KV_MICRO=$(KV_micro "$1")
local KV_int=$(( 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 ...
if [[ ${KV_int} -ge 131584 ]] ; then
echo "${KV_int}"
return 0
fi
return 1
}
_RC_GET_KV_CACHE=""
get_KV() {
[[ -z ${_RC_GET_KV_CACHE} ]] \
&& _RC_GET_KV_CACHE=$(uname -r)
echo $(KV_to_int "${_RC_GET_KV_CACHE}")
return $?
}
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