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gentoo/eclass/bash-completion-r1.eclass
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Michał Górny 2f653f03c3 eclass: [QA] Revert multiple meaningless doc changes
Revert multiple meaningless eclass documentation changes, notably adding
a lot of placeholders and documenting implementation details.  These
changes were aimed at silencing (valid) documentation warnings without
actually providing valuable documentation to the end users.  While some
of these changes were beneficial, it would take a lot of effort to
review them all and the author is unwilling to fix his mistakes.

Signed-off-by: Michał Górny <mgorny@gentoo.org>
2020-12-28 10:31:30 +01:00

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# Copyright 1999-2020 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_helpersdir
# @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
}