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# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: bash-completion-r1.eclass
# @MAINTAINER:
# mgorny@gentoo.org
# @SUPPORTED_EAPIS: 0 1 2 3 4 5 6 7
# @BLURB: A few quick functions to install bash-completion files
# @EXAMPLE:
#
# @CODE
# EAPI=5
#
# src_configure() {
# econf \
# --with-bash-completion-dir="$(get_bashcompdir)"
# }
#
# src_install() {
# default
#
# newbashcomp contrib/${PN}.bash-completion ${PN}
# }
# @CODE
inherit toolchain-funcs
case ${EAPI:-0} in
0|1|2|3|4|5|6|7) ;;
*) die "EAPI ${EAPI} unsupported (yet)."
esac
# @FUNCTION: _bash-completion-r1_get_bashdir
# @INTERNAL
# @DESCRIPTION:
# First argument is name of the string in bash-completion.pc
# Second argument is the fallback directory if the string is not found
# @EXAMPLE:
# _bash-completion-r1_get_bashdir completionsdir /usr/share/bash-completion
_bash-completion-r1_get_bashdir() {
debug-print-function ${FUNCNAME} "${@}"
if $(tc-getPKG_CONFIG) --exists bash-completion &>/dev/null; then
local path
path=$($(tc-getPKG_CONFIG) --variable="${1}" bash-completion) || die
# we need to return unprefixed, so strip from what pkg-config returns
# to us, bug #477692
echo "${path#${EPREFIX}}"
else
echo "${2}"
fi
}
# @FUNCTION: _bash-completion-r1_get_bashcompdir
# @INTERNAL
# @DESCRIPTION:
# Get unprefixed bash-completion completions directory.
_bash-completion-r1_get_bashcompdir() {
debug-print-function ${FUNCNAME} "${@}"
_bash-completion-r1_get_bashdir completionsdir /usr/share/bash-completion/completions
}
# @FUNCTION: _bash-completion-r1_get_bashhelpersdir
# @INTERNAL
# @DESCRIPTION:
# Get unprefixed bash-completion helpers directory.
_bash-completion-r1_get_bashhelpersdir() {
debug-print-function ${FUNCNAME} "${@}"
_bash-completion-r1_get_bashdir helpersdir /usr/share/bash-completion/helpers
}
# @FUNCTION: get_bashcompdir
# @DESCRIPTION:
# Get the bash-completion completions directory.
get_bashcompdir() {
debug-print-function ${FUNCNAME} "${@}"
echo "${EPREFIX}$(_bash-completion-r1_get_bashcompdir)"
}
# @FUNCTION: get_bashhelpersdir
# @INTERNAL
# @DESCRIPTION:
# Get the bash-completion helpers directory.
get_bashhelpersdir() {
debug-print-function ${FUNCNAME} "${@}"
echo "${EPREFIX}$(_bash-completion-r1_get_bashhelpersdir)"
}
# @FUNCTION: dobashcomp
# @USAGE: <file> [...]
# @DESCRIPTION:
# Install bash-completion files passed as args. Has EAPI-dependant failure
# behavior (like doins).
dobashcomp() {
debug-print-function ${FUNCNAME} "${@}"
(
insopts -m 0644
insinto "$(_bash-completion-r1_get_bashcompdir)"
doins "${@}"
)
}
# @FUNCTION: newbashcomp
# @USAGE: <file> <newname>
# @DESCRIPTION:
# Install bash-completion file under a new name. Has EAPI-dependant failure
# behavior (like newins).
newbashcomp() {
debug-print-function ${FUNCNAME} "${@}"
(
insopts -m 0644
insinto "$(_bash-completion-r1_get_bashcompdir)"
newins "${@}"
)
}
# @FUNCTION: bashcomp_alias
# @USAGE: <basename> <alias>...
# @DESCRIPTION:
# Alias <basename> completion to one or more commands (<alias>es).
bashcomp_alias() {
debug-print-function ${FUNCNAME} "${@}"
[[ ${#} -lt 2 ]] && die "Usage: ${FUNCNAME} <basename> <alias>..."
local base=${1} f
shift
for f; do
dosym "${base}" "$(_bash-completion-r1_get_bashcompdir)/${f}" \
|| return
done
}
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