commit: 10e8d5a43a30291adc3578304e3c8df9b7591b99
Author: Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Fri Dec 16 06:40:51 2022 +0000
Commit: Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Fri Dec 16 06:41:09 2022 +0000
URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=10e8d5a4
app-alternatives/awk: add 4 (warning for mawk)
Add one-off warning if using mawk, as suggested by kerframil.
Signed-off-by: Sam James <sam <AT> gentoo.org>
app-alternatives/awk/awk-4.ebuild | 95 +++++++++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
diff --git a/app-alternatives/awk/awk-4.ebuild
b/app-alternatives/awk/awk-4.ebuild
new file mode 100644
index 000000000000..127157897532
--- /dev/null
+++ b/app-alternatives/awk/awk-4.ebuild
@@ -0,0 +1,95 @@
+# 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
+}
