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# Copyright 2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
ALTERNATIVES=(
gawk:sys-apps/gawk
busybox:sys-apps/busybox
mawk:sys-apps/mawk
nawk:sys-apps/nawk
)
inherit app-alternatives
DESCRIPTION="/bin/awk and /usr/bin/awk symlinks"
KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
IUSE="split-usr"
RDEPEND="
!app-eselect/eselect-awk
"
src_install() {
local alt=$(get_alternative)
local root_prefix=
use split-usr && root_prefix=../../bin/
# We could consider setting AWK=... like we do for yacc & lex,
# but it would need some testing with a fair amount of packages first,
# as autoconf prefers gawk.
case ${alt} in
busybox)
dosym "${root_prefix}busybox" /usr/bin/awk
;;
*)
dosym "${alt}" /usr/bin/awk
;;
esac
newman - awk.1 <<<".so ${alt}.1"
if use split-usr; then
dosym ../usr/bin/awk /bin/awk
fi
}
pkg_preinst() {
HAD_MAWK=0
has_version "app-alternatives/awk[mawk]" && HAD_MAWK=1
local v
for v in ${REPLACING_VERSIONS}; do
if ver_test "${v}" -lt 4; then
SHOW_MAWK_WARNING=1
fi
# if we are upgrading from a new enough version, leftover manpage
# symlink cleanup was done already
if ver_test "${v}" -ge 3; then
return
fi
done
# otherwise, remove leftover files/symlinks created by eselect-awk (sic!)
shopt -s nullglob
local files=( "${EROOT}"/usr/share/man/man1/awk.1* )
shopt -u nullglob
if [[ ${files[@]} ]]; then
einfo "Cleaning up leftover manpage symlinks from eselect-awk ..."
rm -v "${files[@]}" || die
fi
}
pkg_postinst() {
# Show the warning on new installs if using mawk, or older installs
# if upgrading from < app-alternatives/awk-4[mawk].
if [[ -z ${REPLACING_VERSIONS} || ${SHOW_MAWK_WARNING} -eq 1 || ${HAD_MAWK} -eq 0 ]] && use mawk; then
ewarn "mawk (incompletely) implements awk, as it was defined by the now-obsolete"
ewarn "POSIX 1003.2 (draft 11.3) specification. It does not fully implement the standard"
ewarn "extended regular expression syntax and there are other known issues pertaining to POSIX conformance."
fi
}
pkg_postrm() {
# make sure we don't leave the user without the symlinks, since
# they've not been owned by any other package
if [[ ! -h ${EROOT}/usr/bin/awk ]]; then
ln -s gawk "${EROOT}/usr/bin/awk" || die
fi
if [[ ! -h ${EROOT}/bin/awk ]]; then
ln -s ../usr/bin/awk "${EROOT}/bin/awk" || die
fi
}
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