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# Common library of shell functions for parsing various Gentoo-related data
# and leveraging pkgcore functionality.
# get an attribute for a given package
_pkgattr() {
local prog=$(_get_caller)
local pkg_attr=$1 pkg_atom=$2 repo=$3
local ret=0 pid fdout fderr
local -a pkg error
if [[ -z ${pkg_atom} ]]; then
echo "${prog}: enter a valid package name or repo path" >&2
return 1
fi
# setup pipes for stdout/stderr capture
local tmpdir=$(mktemp -d)
trap "rm -rf '${tmpdir}'" EXIT HUP INT TERM
mkfifo "${tmpdir}"/{stdout,stderr}
if [[ -n ${repo} ]]; then
pquery -r "${repo}" --raw --unfiltered --cpv --one-attr "${pkg_attr}" -n -- "${pkg_atom}" >"${tmpdir}"/stdout 2>"${tmpdir}"/stderr &
else
pquery --ebuild-repos --raw --unfiltered --cpv --one-attr "${pkg_attr}" -n -- "${pkg_atom}" >"${tmpdir}"/stdout 2>"${tmpdir}"/stderr &
fi
# capture pquery stdout/stderr into separate vars
pid=$!
exec {fdout}<"${tmpdir}"/stdout {fderr}<"${tmpdir}"/stderr
rm -rf "${tmpdir}"
pkg=("${(@f)$(<&${fdout})}")
error=("${(@f)$(<&${fderr})}")
wait ${pid}
ret=$?
exec {fdout}<&- {fderr}<&-
if [[ ${ret} != 0 ]]; then
# show pquery error message
echo "${prog}: ${error[-1]#pquery: error: }" >&2
return 1
fi
local choice
if [[ -z ${pkg[@]} ]]; then
echo "${prog}: no matches found: ${pkg_atom}" >&2
return 1
elif [[ ${#pkg[@]} > 1 ]]; then
echo "${prog}: multiple matches found: ${pkg_atom}" >&2
choice=$(_choose "${pkg[@]%%:*}")
[[ $? -ne 0 ]] && return 1
else
choice=-1
fi
echo ${pkg[${choice}]#*:}
}
# get the caller of the current function
_get_caller() {
echo ${${funcstack[-1]}:t}
}
# cross-shell compatible PATH searching
_which() {
whence -p "$1" >/dev/null
}
# cross-shell compatible array index helper
# zsh arrays start at 1
_array_index() {
index=$1
echo $(( ++index ))
}
## Completion related functions ##
# configured repo info
#
# Note that this only supports the repos.conf format,
# PORTDIR/PORTDIR_OVERLAY in make.conf are not supported.
#
# optional args:
# -t repo_types -- show specific repo types (defaults to showing source repos)
# The repo_types parameter can be any of the following characters in combination:
# e: package.provided "repo"
# i: vdb "repo"
# s: all source repos (default if the -t option isn't passed)
# b: all binary repos
# a: repo-stack "repo"
# For example, `_repos -t sbi` will return the list of source, binary, and
# installed repos.
# -v section:key
# -p print the output instead of using completion
# -l use repo locations instead of repo_ids
_repos() {
typeset -A opts
zparseopts -E -A opts t: l p v:
local repo_name output_type
typeset -a repos repo_types output
# verify selected repo types
if [[ -n ${opts[(I)-t]} ]]; then
local -a supported_repo_types=(e i s b a)
repo_types=(${(s::)opts[-t]})
for type in ${repo_types[@]}; do
if [[ ! ${type} =~ [${supported_repo_types[@]}] ]]; then
echo "${funcstack[1]}: invalid repo type: ${type}" >&2
echo "supported types: ${supported_repo_types[@]} (see docs)" >&2
return 1
fi
done
else
# default to showing source repos
repo_types=(s)
fi
if [[ -e /etc/portage/repos.conf ]]; then
repos_conf_files=( /etc/portage/repos.conf /etc/portage/repos.conf/** )
else
repos_conf_files=( /usr/share/pkgcore/config/repos.conf )
fi
IFS='= '
local file
for file in "${repos_conf_files[@]}"; do
[[ -f ${file} ]] || continue
while read -r name value; do
# skip comments and empty lines
[[ -z ${name} || ${name} == '#'* ]] && continue
if [[ (${name} == '['*']') && -z ${value} ]]; then
repo_name=${name//[\[\]]}
[[ ${repo_name} != "DEFAULT" ]] && repos+=(${repo_name})
typeset -A ${repo_name}
else
eval "${repo_name}[${name}]=\"${value}\""
fi
done < ${file}
done
if [[ -n ${opts[(I)-v]} ]]; then
section=${opts[-v]%%:*}
value=${opts[-v]##*:}
eval "output=\${${section}[${value}]}"
elif [[ -n ${opts[(I)-l]} ]]; then
# repo paths
output_type="repo paths"
for repo in ${repos[@]}; do
eval "output+=(\${${repo}[location]})"
done
else
# repo names
output_type="repos"
[[ ${repo_types} =~ "s" ]] && output+=(${repos[@]})
[[ ${repo_types} =~ "e" ]] && output+=( provided )
[[ ${repo_types} =~ "i" ]] && output+=( vdb )
[[ ${repo_types} =~ "b" ]] && output+=( binpkg )
[[ ${repo_types} =~ "a" ]] && output+=( repo-stack )
fi
if [[ -n ${compstate} ]] && [[ -z ${opts[(I)-p]} ]]; then
_describe -t repos ${output_type} output
else
print ${output}
fi
}
# available licenses
#
# optional args:
# -r repo specify the repo to use; otherwise the default repo is used
# -p print the output instead of using completion
_licenses() {
typeset -A opts
zparseopts -E -A opts p r:
typeset -a licenses
if [[ -n ${opts[(I)-r]} ]]; then
repo=${opts[-r]}
else
repo=$(_repos -p -v DEFAULT:main-repo)
fi
repo_path=${$(_repos -p -v "${repo}:location")%/}
licenses=("${repo_path}"/licenses/*(.:t))
if [[ -n ${compstate} ]] && [[ -z ${opts[(I)-p]} ]]; then
_describe -t licenses 'licenses' licenses
else
print ${licenses}
fi
}
# global/local USE flag info
#
# optional args
# -r repo specify the repo to use; otherwise the default repo is used
# -p print the output instead of using completion
# -g only show global use flags
# -l only show local use flags
# -o don't show use flag descriptions
_use() {
typeset -A opts
zparseopts -E -A opts o p r:
local desc
typeset -a use use_global use_local
if [[ -n ${opts[(I)-r]} ]]; then
repo=${opts[-r]}
else
repo=$(_repos -p -v DEFAULT:main-repo)
fi
repo_path=${$(_repos -p -v "${repo}:location")%/}
[[ -f ${repo_path}/profiles/use.desc ]] && use_global=(${(S)${${(f)"$(<${repo_path}/profiles/use.desc)"}:#\#*}/ - /:})
[[ -f ${repo_path}/profiles/use.local.desc ]] && use_local=(${(S)${(S)${${(f)"$(<${repo_path}/profiles/use.local.desc)"}:#\#*}/*:/}/ - /:})
if [[ -z ${opts[(I)-g]} && -z ${opts[(I)-l]} ]]; then
# both global and local use flags are shown by default
use=( ${use_global} ${use_local} )
elif [[ -n ${opts[(I)-g]} ]]; then
use=${use_global}
desc='global '
elif [[ -n ${opts[(I)-l]} ]]; then
use=${use_local}
desc='local '
fi
# strip use flag descriptions
if [[ -n ${opts[(I)-o]} ]]; then
use=(${^use/:*/})
fi
if [[ -n ${compstate} ]] && [[ -z ${opts[(I)-p]} ]]; then
_describe -t use "${desc}use flag" use
else
print ${use}
fi
}
# package categories provided by repos
#
# optional args
# -r repo specify the repo to use; otherwise the default repo is used
# -p print the output instead of using completion
_categories() {
typeset -A opts
zparseopts -E -A opts p r:
typeset -a categories
if [[ -n ${opts[(I)-r]} ]]; then
repo=${opts[-r]}
else
repo=$(_repos -p -v DEFAULT:main-repo)
fi
repo_path=${$(_repos -p -v "${repo}:location")%/}
[[ -f ${repo_path}/profiles/categories ]] && categories=(${${(f)"$(<${repo_path}/profiles/categories)"}:#\#*})
if [[ -n ${compstate} ]] && [[ -z ${opts[(I)-p]} ]]; then
_describe -t categories 'categories' categories
else
print ${categories}
fi
}
# arches provided by repos
#
# optional args
# -r repo specify the repo to use; otherwise the default repo is used
# -p print the output instead of using completion
_arches() {
typeset -A opts
zparseopts -E -A opts p r:
typeset -a arches
if [[ -n ${opts[(I)-r]} ]]; then
repo=${opts[-r]}
else
repo=$(_repos -p -v DEFAULT:main-repo)
fi
repo_path=${$(_repos -p -v "${repo}:location")%/}
[[ -f ${repo_path}/profiles/arch.list ]] && arches=(${${(f)"$(<${repo_path}/profiles/arch.list)"}:#\#*})
if [[ -n ${compstate} ]] && [[ -z ${opts[(I)-p]} ]]; then
_describe -t arches 'arches' arches
else
print ${arches}
fi
}
# profiles provided by repos
#
# optional args
# -r repo specify the repo to use; otherwise the default repo is used
# -p print the output instead of using completion
# -f output full, absolute profile paths
_profiles() {
typeset -A opts
zparseopts -E -A opts a p f r:
local file repo repo_path arch path pstatus
typeset -a profiles
if [[ -n ${opts[(I)-r]} ]]; then
repo=${opts[-r]}
else
repo=$(_repos -p -v DEFAULT:main-repo)
fi
repo_path=${$(_repos -p -v "${repo}:location")%/}
file=${repo_path}/profiles/profiles.desc
if [[ -f ${file} ]]; then
while read -r arch path pstatus; do
# skip comments and empty lines
[[ -z ${arch} || ${arch} == '#'* ]] && continue
[[ -n ${opts[(I)-f]} ]] && path=${repo_path}/profiles/${path}
profiles+=(${path})
done < ${file}
fi
if [[ -n ${compstate} ]] && [[ -z ${opts[(I)-p]} ]]; then
_describe -t profiles 'profiles' profiles $*
else
print ${profiles}
fi
}
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