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# -*-eselect-*- vim: ft=eselect
# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
# This is a portage-only module.
inherit package-manager
DESCRIPTION="Manage the /etc/make.profile symlink"
MAINTAINER="eselect@gentoo.org"
SVN_DATE='$Date$'
VERSION=$(svn_date_to_version "${SVN_DATE}")
# get a list of valid profiles
find_targets() {
local arch p portdir=${1}
[[ -n ${portdir} ]] || portdir=$(portageq portdir)
arch=$(arch)
[[ -z ${arch} ]] && return 1
for p in $(sed -n -e "s|^${arch}[[:space:]]\+\([^[:space:]]\+\).*$|\1|p" \
"${ROOT}${portdir}/profiles/profiles.desc")
do
echo ${p}
done
}
# remove make.profile symlink
remove_symlink() {
rm "${EROOT}/etc/make.profile"
}
# set the make.profile symlink
set_symlink() {
local portdir=$(portageq portdir) target=${1} targets arch parch
if is_number "${target}" ; then
targets=( $(find_targets "${portdir}") )
[[ -z ${targets} ]] && die -q "Failed to get a list of valid profiles"
target=${targets[target - 1]}
elif [[ -n ${target} && -d ${ROOT}${portdir}/profiles/${target} ]]
then
# if the profile was explicitly specified (rather than a number)
# double check and make sure it's valid
arch=$(arch)
[[ -z ${arch} && ${2} != "--force" ]] && return 1
# do a reverse lookup and find the arch associated with ${target}
parch=$(sed -n -e \
"s|^\([[:alnum:]]\+\)[[:space:]].*${target}[[:space:]].*$|\1|p" \
"${ROOT}${portdir}/profiles/profiles.desc")
if [[ ${arch} != ${parch} && ${2} != "--force" ]] ; then
die -q "${target} is not a valid profile for ${arch}"
fi
fi
if [[ -z ${target} ]] ; then
die -q "Target \"${1}\" doesn't appear to be valid!"
elif [[ -d ${ROOT}${portdir}/profiles/${target} ]] ; then
# we must call remove_symlink() here instead of calling
# it from do_set(), since if the link is removed, we
# cannot determine $ARCH in find_targets()
if [[ -L ${EROOT}/etc/make.profile ]] ; then
remove_symlink \
|| die -q "Couldn't remove current make.profile symlink"
fi
ln -s "$(relative_name \
"${ROOT}${portdir}" "${EROOT}/etc")/profiles/${target}" \
"${EROOT}/etc/make.profile"
# check if the resulting symlink is sane
if [[ $(canonicalise "${EROOT}/etc/make.profile") \
!= "$(canonicalise "${EROOT}")"/* ]]; then
write_warning_msg \
"Strange path. Check ${EROOT}/etc/make.profile symlink"
fi
else
die -q "Target \"${1}\" doesn't appear to be valid!"
fi
}
### show action ###
describe_show() {
echo "Show the current make.profile symlink"
}
do_show() {
write_list_start "Current make.profile symlink:"
if [[ -L ${EROOT}/etc/make.profile ]] ; then
local link=$(canonicalise "${EROOT}/etc/make.profile")
local portdir=$(portageq portdir)
local profiledir=$(canonicalise "${ROOT}${portdir}/profiles")
link=${link##${profiledir}/}
write_kv_list_entry "${link}" ""
else
write_kv_list_entry "(unset)" ""
fi
}
### list action ###
describe_list() {
echo "List available profile symlink targets"
}
do_list() {
local portdir profiledir active targets
targets=( $(find_targets) )
[[ -z ${targets} ]] && die -q "Failed to get a list of valid profiles"
portdir=$(portageq portdir)
profiledir=$(canonicalise "${ROOT}${portdir}/profiles")
active=$(canonicalise "${EROOT}/etc/make.profile")
active=${active##${profiledir}/}
if [[ -n ${targets[@]} ]] ; then
local i
for (( i = 0 ; i < ${#targets[@]} ; i = i + 1 )) ; do
[[ ${targets[i]} == ${active} ]] \
&& targets[i]=$(highlight_marker "${targets[i]}")
done
fi
write_list_start "Available profile symlink targets:"
write_numbered_list "${targets[@]}"
}
### set action ###
describe_set() {
echo "Set a new profile symlink target"
}
describe_set_parameters() {
echo "<target>"
}
describe_set_options() {
echo "target : Target name or number (from 'list' action)"
echo "--force : Forcibly set the symlink"
}
do_set() {
local force
if [[ ${1} == "--force" ]] ; then
force=${1}
shift
fi
if [[ -z ${1} ]] ; then
die -q "You didn't tell me what to set the symlink to"
elif [[ -e ${EROOT}/etc/make.profile ]] &&
[[ ! -L ${EROOT}/etc/make.profile ]] ; then
die -q "${EROOT}/etc/make.profile isn't a symlink"
else
set_symlink "${1}" ${force} || die -q "Couldn't set a new symlink"
fi
}
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