app-shells/bash: backport another extglob fix

It's still not sufficient but with this in on top of _p9, it's very
clear what the remaining issues are then, rather than me at least
trying to remember exactly what's broken still as the saga continues.

It is still not enough to unmask as there's still one extglob
issue remaining (and this came up pretty early as far as testing
goes). I don't see us being able to expose Bash 5.2 to users
for a while yet.

Bug: https://bugs.gentoo.org/873931
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 387 insertions, 0 deletions

diff --git a/app-shells/bash/bash-5.2_p9-r1.ebuild b/app-shells/bash/bash-5.2_p9-r1.ebuild
new file mode 100644
index 000000000000..4d87e7c40c59
--- /dev/null
+++ b/app-shells/bash/bash-5.2_p9-r1.ebuild
@@ -0,0 +1,345 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/chetramey.asc
+inherit flag-o-matic toolchain-funcs prefix verify-sig
+
+# Uncomment if we have a patchset
+#GENTOO_PATCH_DEV="sam"
+#GENTOO_PATCH_VER="${PV}"
+
+# Official patchlevel
+# See ftp://ftp.cwru.edu/pub/bash/bash-5.1-patches/
+PLEVEL="${PV##*_p}"
+MY_PV="${PV/_p*}"
+MY_PV="${MY_PV/_/-}"
+MY_P="${PN}-${MY_PV}"
+MY_PATCHES=()
+
+is_release() {
+	case ${PV} in
+		9999|*_alpha*|*_beta*|*_rc*)
+			return 1
+			;;
+		*)
+			return 0
+			;;
+	esac
+}
+
+[[ ${PV} != *_p* ]] && PLEVEL=0
+
+# The version of readline this bash normally ships with.
+# Note: right now, we don't use the system copy of readline for bash for non-releases.
+READLINE_VER="8.2_p1"
+
+DESCRIPTION="The standard GNU Bourne again shell"
+HOMEPAGE="https://tiswww.case.edu/php/chet/bash/bashtop.html https://git.savannah.gnu.org/cgit/bash.git"
+
+if [[ ${PV} == 9999 ]] ; then
+	EGIT_REPO_URI="https://git.savannah.gnu.org/git/bash.git"
+	EGIT_BRANCH=devel
+	inherit git-r3
+elif is_release ; then
+	SRC_URI="mirror://gnu/bash/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( mirror://gnu/bash/${MY_P}.tar.gz.sig )"
+
+	if [[ ${PLEVEL} -gt 0 ]] ; then
+		# bash-5.1 -> bash51
+		my_p=${PN}$(ver_rs 1-2 '' $(ver_cut 1-2))
+
+		patch_url=
+		my_patch_index=
+
+		for ((my_patch_index=1; my_patch_index <= ${PLEVEL} ; my_patch_index++)) ; do
+			for url in mirror://gnu/${pn} ftp://ftp.cwru.edu/pub/bash ; do
+				patch_url=$(printf "${url}/${PN}-$(ver_cut 1-2)-patches/${my_p}-%03d" ${my_patch_index})
+				SRC_URI+=" ${patch_url}"
+				SRC_URI+=" verify-sig? ( ${patch_url}.sig )"
+			done
+
+			MY_PATCHES+=( "${DISTDIR}"/$(printf ${my_p}-%03d ${my_patch_index}) )
+		done
+
+		unset my_pn patch_url my_patch_index
+	fi
+else
+	SRC_URI="mirror://gnu/${PN}/${MY_P}.tar.gz ftp://ftp.cwru.edu/pub/bash/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( mirror://gnu/${PN}/${MY_P}.tar.gz.sig ftp://ftp.cwru.edu/pub/bash/${MY_P}.tar.gz.sig )"
+fi
+
+if [[ -n ${GENTOO_PATCH_VER} ]] ; then
+	SRC_URI+=" https://dev.gentoo.org/~${GENTOO_PATCH_DEV}/distfiles/${CATEGORY}/${PN}/${PN}-${GENTOO_PATCH_VER}-patches.tar.xz"
+fi
+
+LICENSE="GPL-3+"
+SLOT="0"
+if is_release ; then
+	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"
+fi
+IUSE="afs bashlogger examples mem-scramble +net nls plugins pgo +readline"
+
+DEPEND="
+	>=sys-libs/ncurses-5.2-r2:=
+	nls? ( virtual/libintl )
+"
+if is_release ; then
+	DEPEND+=" readline? ( >=sys-libs/readline-${READLINE_VER}:= )"
+fi
+RDEPEND="
+	${DEPEND}
+"
+# We only need yacc when the .y files get patched (bash42-005, bash51-011)
+BDEPEND="
+	virtual/yacc
+	pgo? ( dev-util/gperf )
+	verify-sig? ( sec-keys/openpgp-keys-chetramey )
+"
+
+S="${WORKDIR}/${MY_P}"
+
+# EAPI 8 tries to append it but it doesn't exist here
+QA_CONFIGURE_OPTIONS="--disable-static"
+
+PATCHES=(
+	#"${WORKDIR}"/${PN}-${GENTOO_PATCH_VER}/
+
+	# Patches from Chet sent to bash-bug ml
+	"${FILESDIR}"/${PN}-5.0-syslog-history-extern.patch
+	"${FILESDIR}"/${P}-fix-for-extglob-in-compat-mode.patch
+)
+
+pkg_setup() {
+	# bug #7332
+	if is-flag -malign-double ; then
+		eerror "Detected bad CFLAGS '-malign-double'.  Do not use this"
+		eerror "as it breaks LFS (struct stat64) on x86."
+		die "remove -malign-double from your CFLAGS mr ricer"
+	fi
+
+	if use bashlogger ; then
+		ewarn "The logging patch should ONLY be used in restricted (i.e. honeypot) envs."
+		ewarn "This will log ALL output you enter into the shell, you have been warned."
+	fi
+}
+
+src_unpack() {
+	if [[ ${PV} == 9999 ]] ; then
+		git-r3_src_unpack
+	else
+		if use verify-sig ; then
+			verify-sig_verify_detached "${DISTDIR}"/${MY_P}.tar.gz{,.sig}
+		fi
+
+		unpack ${MY_P}.tar.gz
+
+		if [[ -n ${GENTOO_PATCH_VER} ]] ; then
+			unpack ${PN}-${GENTOO_PATCH_VER}-patches.tar.xz
+		fi
+	fi
+}
+
+src_prepare() {
+	# Include official patches
+	[[ ${PLEVEL} -gt 0 ]] && eapply -p0 "${MY_PATCHES[@]}"
+
+	# Clean out local libs so we know we use system ones w/releases.
+	if is_release ; then
+		rm -rf lib/{readline,termcap}/* || die
+		touch lib/{readline,termcap}/Makefile.in || die # for config.status
+		sed -ri -e 's:\$[{(](RL|HIST)_LIBSRC[)}]/[[:alpha:]_-]*\.h::g' Makefile.in || die
+	fi
+
+	# Prefixify hardcoded path names. No-op for non-prefix.
+	hprefixify pathnames.h.in
+
+	# Avoid regenerating docs after patches, bug #407985
+	sed -i -r '/^(HS|RL)USER/s:=.*:=:' doc/Makefile.in || die
+	touch -r . doc/* || die
+
+	eapply -p0 "${PATCHES[@]}"
+	eapply_user
+}
+
+src_configure() {
+	local myconf=(
+		--disable-profiling
+
+		# Force linking with system curses ... the bundled termcap lib
+		# sucks bad compared to ncurses.  For the most part, ncurses
+		# is here because readline needs it.  But bash itself calls
+		# ncurses in one or two small places :(.
+		--with-curses
+
+		$(use_enable mem-scramble)
+		$(use_enable net net-redirections)
+		$(use_enable readline)
+		$(use_enable readline bang-history)
+		$(use_enable readline history)
+		$(use_with afs)
+		$(use_with mem-scramble bash-malloc)
+	)
+
+	# For descriptions of these, see config-top.h
+	# bashrc/#26952 bash_logout/#90488 ssh/#24762 mktemp/#574426
+	append-cppflags \
+		-DDEFAULT_PATH_VALUE=\'\"${EPREFIX}/usr/local/sbin:${EPREFIX}/usr/local/bin:${EPREFIX}/usr/sbin:${EPREFIX}/usr/bin:${EPREFIX}/sbin:${EPREFIX}/bin\"\' \
+		-DSTANDARD_UTILS_PATH=\'\"${EPREFIX}/bin:${EPREFIX}/usr/bin:${EPREFIX}/sbin:${EPREFIX}/usr/sbin\"\' \
+		-DSYS_BASHRC=\'\"${EPREFIX}/etc/bash/bashrc\"\' \
+		-DSYS_BASH_LOGOUT=\'\"${EPREFIX}/etc/bash/bash_logout\"\' \
+		-DNON_INTERACTIVE_LOGIN_SHELLS \
+		-DSSH_SOURCE_BASHRC \
+		$(use bashlogger && echo -DSYSLOG_HISTORY)
+
+	# Don't even think about building this statically without
+	# reading bug #7714 first.  If you still build it statically,
+	# don't come crying to us with bugs ;).
+	#use static && export LDFLAGS="${LDFLAGS} -static"
+	use nls || myconf+=( --disable-nls )
+
+	if is_release ; then
+		# Historically, we always used the builtin readline, but since
+		# our handling of SONAME upgrades has gotten much more stable
+		# in the PM (and the readline ebuild itself preserves the old
+		# libs during upgrades), linking against the system copy should
+		# be safe.
+		# Exact cached version here doesn't really matter as long as it
+		# is at least what's in the DEPEND up above.
+		export ac_cv_rl_version=${READLINE_VER%%_*}
+
+		# Use system readline only with released versions.
+		myconf+=( --with-installed-readline=. )
+	fi
+
+	if use plugins ; then
+		append-ldflags -Wl,-rpath,"${EPREFIX}"/usr/$(get_libdir)/bash
+	else
+		# Disable the plugins logic by hand since bash doesn't
+		# provide a way of doing it.
+		export ac_cv_func_dl{close,open,sym}=no \
+			ac_cv_lib_dl_dlopen=no ac_cv_header_dlfcn_h=no
+
+		sed -i \
+			-e '/LOCAL_LDFLAGS=/s:-rdynamic::' \
+			configure || die
+	fi
+
+	# bug #444070
+	tc-export AR
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	if use pgo ; then
+		# Build Bash and run its tests to generate profiles.
+		emake CFLAGS="${CFLAGS} -fprofile-generate=${T}/pgo -fprofile-dir=${T}/pgo"
+
+		# Used in test suite.
+		unset A
+
+		emake CFLAGS="${CFLAGS} -fprofile-generate=${T}/pgo -fprofile-dir=${T}/pgo" -k check
+
+		# Rebuild Bash using the profiling data we just generated.
+		emake clean
+		emake CFLAGS="${CFLAGS} -fprofile-use=${T}/pgo -fprofile-dir=${T}/pgo"
+
+		use plugins && emake -C examples/loadables CFLAGS="${CFLAGS} -fprofile-use=${T}/pgo -fprofile-dir=${T}/pgo" all others
+	else
+		emake
+
+		use plugins && emake -C examples/loadables all others
+	fi
+}
+
+src_test() {
+	# Used in test suite.
+	unset A
+
+	default
+}
+
+src_install() {
+	local d f
+
+	default
+
+	dodir /bin
+	mv "${ED}"/usr/bin/bash "${ED}"/bin/ || die
+	dosym bash /bin/rbash
+
+	insinto /etc/bash
+	doins "${FILESDIR}"/bash_logout
+	doins "$(prefixify_ro "${FILESDIR}"/bashrc)"
+
+	keepdir /etc/bash/bashrc.d
+
+	insinto /etc/skel
+	for f in bash{_logout,_profile,rc} ; do
+		newins "${FILESDIR}"/dot-${f} .${f}
+	done
+
+	local sed_args=(
+		-e "s:#${USERLAND}#@::"
+		-e '/#@/d'
+	)
+
+	if ! use readline ; then
+		# bug #432338
+		sed_args+=(
+			-e '/^shopt -s histappend/s:^:#:'
+			-e 's:use_color=true:use_color=false:'
+		)
+	fi
+
+	sed -i \
+		"${sed_args[@]}" \
+		"${ED}"/etc/skel/.bashrc \
+		"${ED}"/etc/bash/bashrc || die
+
+	if use plugins ; then
+		exeinto /usr/$(get_libdir)/bash
+		doexe $(echo examples/loadables/*.o | sed 's:\.o::g')
+
+		insinto /usr/include/bash-plugins
+		doins *.h builtins/*.h include/*.h lib/{glob/glob.h,tilde/tilde.h}
+	fi
+
+	if use examples ; then
+		for d in examples/{functions,misc,scripts,startup-files} ; do
+			exeinto /usr/share/doc/${PF}/${d}
+			docinto ${d}
+			for f in ${d}/* ; do
+				if [[ ${f##*/} != PERMISSION ]] && [[ ${f##*/} != *README ]] ; then
+					doexe ${f}
+				else
+					dodoc ${f}
+				fi
+			done
+		done
+	fi
+
+	# Install bash_builtins.1 and rbash.1
+	emake -C doc DESTDIR="${D}" install_builtins
+	sed 's:bash\.1:man1/&:' doc/rbash.1 > "${T}"/rbash.1 || die
+	doman "${T}"/rbash.1
+
+	newdoc CWRU/changelog ChangeLog
+	dosym bash.info /usr/share/info/bashref.info
+}
+
+pkg_preinst() {
+	if [[ -e ${EROOT}/etc/bashrc ]] && [[ ! -d ${EROOT}/etc/bash ]] ; then
+		mkdir -p "${EROOT}"/etc/bash
+		mv -f "${EROOT}"/etc/bashrc "${EROOT}"/etc/bash/
+	fi
+}
+
+pkg_postinst() {
+	# If /bin/sh does not exist, provide it
+	if [[ ! -e ${EROOT}/bin/sh ]] ; then
+		ln -sf bash "${EROOT}"/bin/sh
+	fi
+}
diff --git a/app-shells/bash/files/bash-5.2_p9-fix-for-extglob-in-compat-mode.patch b/app-shells/bash/files/bash-5.2_p9-fix-for-extglob-in-compat-mode.patch
new file mode 100644
index 000000000000..440800666870
--- /dev/null
+++ b/app-shells/bash/files/bash-5.2_p9-fix-for-extglob-in-compat-mode.patch
@@ -0,0 +1,42 @@
+https://lists.gnu.org/archive/html/bug-bash/2022-11/msg00039.html
+https://bugs.gentoo.org/873931
+
+*** ../bash-5.2-patched/parse.y	2022-08-31 11:47:03.000000000 -0400
+--- parse.y	2022-10-05 11:55:18.000000000 -0400
+***************
+*** 4230,4234 ****
+    sh_parser_state_t ps;
+    sh_input_line_state_t ls;
+!   int orig_ind, nc, sflags, start_lineno;
+    char *ret, *ep, *ostring;
+  
+--- 4230,4234 ----
+    sh_parser_state_t ps;
+    sh_input_line_state_t ls;
+!   int orig_ind, nc, sflags, start_lineno, local_extglob;
+    char *ret, *ep, *ostring;
+  
+***************
+*** 4273,4277 ****
+    expand_aliases = 0;
+  #if defined (EXTENDED_GLOB)
+!   global_extglob = extended_glob;		/* for reset_parser() */
+  #endif
+  
+--- 4273,4277 ----
+    expand_aliases = 0;
+  #if defined (EXTENDED_GLOB)
+!   local_extglob = global_extglob = extended_glob;	/* for reset_parser() */
+  #endif
+  
+***************
+*** 4291,4294 ****
+--- 4291,4297 ----
+    restore_parser_state (&ps);
+  
++ #if defined (EXTENDED_GLOB)
++   extended_glob = local_extglob;
++ #endif
+    token_to_read = 0;
+  
+