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# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
# Contributor: Sheila Aman <sheila@vulpine.house>

pkgname=python3
# the python3-tkinter's pkgver needs to be synchronized with this.
pkgver=3.9.5
_bluez_ver=5.55
_basever="${pkgver%.*}"
pkgrel=1
pkgdesc="A high-level scripting language"
url="https://www.python.org/"
arch="all"
license="PSF-2.0"
subpackages="$pkgname-dbg $pkgname-dev $pkgname-doc $pkgname-tests::noarch"
makedepends="expat-dev openssl-dev zlib-dev ncurses-dev bzip2-dev xz-dev
	sqlite-dev libffi-dev tcl-dev linux-headers gdbm-dev>=1.18.1-r0 readline-dev
	mpdecimal-dev automake autoconf libtool autoconf-archive !gettext-dev"
source="https://www.python.org/ftp/python/$pkgver/Python-$pkgver.tar.xz
	https://www.kernel.org/pub/linux/bluetooth/bluez-$_bluez_ver.tar.xz
	fix-xattrs-glibc.patch
	musl-find_library.patch
	custom-bluetooth-h-path.patch
	arm-alignment.patch
	mpdecimal-2.5.1.patch
	bpo-43112.patch
	"
options="net" # Required for tests
builddir="$srcdir/Python-$pkgver"

# secfixes:
#   3.8.8-r0:
#     - CVE-2021-23336
#   3.8.7-r2:
#     - CVE-2021-3177
#   3.8.5-r0:
#     - CVE-2019-20907
#   3.8.4-r0:
#     - CVE-2020-14422
#   3.8.2-r0:
#     - CVE-2020-8315
#     - CVE-2020-8492
#   3.7.5-r0:
#     - CVE-2019-16056
#     - CVE-2019-16935
#   3.6.8-r1:
#     - CVE-2019-5010

prepare() {
	default_prepare

	# force system libs
	rm -r Modules/expat \
		Modules/_ctypes/darwin* \
		Modules/_ctypes/libffi*

	mv "$srcdir"/bluez-$_bluez_ver/lib "$srcdir"/bluez-$_bluez_ver/bluetooth

	# Speed up LTO
	sed -i -e "s|-flto |-flto=4 |g" configure configure.ac

	autoreconf -fi

	sed "s|@bluetoothdir@|\"$srcdir/bluez-$_bluez_ver\"|g" -i setup.py
}

build() {
	# -Os overwrites --enable-optimizations
	export CFLAGS="${CFLAGS/-Os/} -fno-semantic-interposition"
	export LDFLAGS="$LDFLAGS -fno-semantic-interposition"

	# Include bluez headers. Python only needs bluetooth/bluetoot.h and doesn't
	# link against bluez. Depending on bluez-dev introduces a circular dep:
	# Python -> bluez -> glib -> meson -> python
	./configure \
		--build=$CBUILD \
		--host=$CHOST \
		--prefix=/usr \
		--enable-ipv6 \
		--enable-loadable-sqlite-extensions \
		--enable-optimizations \
		--enable-shared \
		--with-lto \
		--with-computed-gotos \
		--with-dbmliborder=gdbm:ndbm \
		--with-system-expat \
		--with-system-ffi \
		--with-system-libmpdec \
		--without-ensurepip \
		--with-bluetoothdir="$srcdir/bluez-$_bluez_ver"

	# set thread stack size to 1MB so we don't segfault before we hit
	# sys.getrecursionlimit()
	# s390x needs more stack space due to its calling convention
	local stacksize=0x100000
	case "$CARCH" in
		s390x) stacksize=0x200000;;
	esac
	make EXTRA_CFLAGS="$CFLAGS -DTHREAD_STACK_SIZE=$stacksize"
}

check() {
	# test that we reach recursionlimit before we segfault
	cat > test-stacksize.py <<-EOF
	import threading
	import sys

	def fun(i):
	  try:
	    fun(i+1)
	  except:
	    sys.exit(0)

	t = threading.Thread(target=fun, args=[1])
	t.start()
EOF
	LD_LIBRARY_PATH=$PWD ./python test-stacksize.py

	local fail

	# musl related
	fail="test__locale test_locale test_strptime test_re"	# various musl locale deficiencies
	fail="$fail test_c_locale_coercion"
	fail="$fail test_datetime"				# hangs if 'tzdata' installed
	fail="$fail test_os"					# fpathconf, ttyname errno values
	fail="$fail test_posix"					# sched_[gs]etscheduler not impl
	fail="$fail test_shutil"				# lchmod, requires real unzip

	# FIXME: failures needing investigation
	fail="$fail test_faulthandler test_gdb"			# hangs(?)
	fail="$fail test_tokenize test_tools"			# SLOW (~60s)
	fail="$fail test_capi"					# test.test_capi.EmbeddingTests
	fail="$fail test_threadsignals"				# test_{,r}lock_acquire_interruption
	fail="$fail test_time"					# strftime/strptime %Z related
	fail="$fail test_cmath test_math"			# hang(?) on x86
	fail="$fail test_hash test_plistlib"			# fail on armhf
	fail="$fail test_ctypes"				# fail on aarch64 (ctypes.test.test_win32.Structures)
	fail="$fail test_cmd_line_script"			# fails on x86_64
	fail="$fail test_multiprocessing_main_handling"		# fails on x86_64
	fail="$fail test_runpy"					# fails on x86_64
	fail="$fail test_threading"				# hangs on all arches (except x86_64?)
	fail="$fail test_selectors"				# AssertionError: 'Python' not found in '' (python3.9)
	fail="$fail test_nntplib"
	fail="$fail test_asyncio"				# hangs; routinely problematic (e.g. bpo-39101, bpo-41891, bpo-42183)

	# kernel related
	fail="$fail test_fcntl"					# wants DNOTIFY, we don't have it

	# just a single subtest test_memoryview_struct_module is breaking on pc64le.
	if [ "$CARCH" = "ppc64le" ]; then
		fail="$fail test_buffer"			# fail on ppc64le
	fi
	case "$CARCH" in
		mips64)			fail="$fail test_compileall" ;;	# FIXME: crashes on octeon3
	esac

	make quicktest TESTOPTS="-j${JOBS:-$(nproc)} --exclude $fail"
}

package() {
	make -j1 DESTDIR="$pkgdir" EXTRA_CFLAGS="$CFLAGS" install maninstall
	install -Dm644 LICENSE "$pkgdir"/usr/share/licenses/$pkgname/LICENSE
	# those are provided by python3-tkinter
	rm -r "$pkgdir"/usr/bin/idle* "$pkgdir"/usr/lib/python*/idlelib \
		"$pkgdir"/usr/lib/python*/tkinter

	# TODO(Leo): some stuff still wants /usr/bin/python to be python2
	# which is a bummer because they are holding back progress but they
	# are important enough that we need to do it
	#
	# Python3 is the canonical python for the moment
	# ln -s /usr/bin/python3 "$pkgdir"/usr/bin/python
}

dev() {
	default_dev

	# pyconfig.h is needed runtime so we move it back
	mkdir -p "$pkgdir"/usr/include/python$_basever
	mv "$subpkgdir"/usr/include/python$_basever/pyconfig.h \
		"$pkgdir"/usr/include/python$_basever/
}

tests() {
	pkgdesc="The test modules from the main python package"

	cd "$pkgdir"/usr/lib/python$_basever
	local i; for i in */test */tests; do
		mkdir -p "$subpkgdir"/usr/lib/python$_basever/"$i"
		mv "$i"/* "$subpkgdir"/usr/lib/python$_basever/"$i"
		rm -rf "$i"
	done
	mv "$pkgdir"/usr/lib/python$_basever/test \
		"$subpkgdir"/usr/lib/python$_basever/
}

sha512sums="
7b581af1b3e73695f124ff6a3a960e22104153a5d920ca930c046f42ea313b1e7ec77e39876db2bf5d5da6d7412cb072ff8ae7814dda12c14f9da6c570fb0995  Python-3.9.5.tar.xz
9423cb60d15a6f068838497a1eaea9f5a32d70c07191c313ba821a6919d6e0c436ada4f547cc5f2db5eacc0123429ad54851f57df2554f61fa293743ec14a033  bluez-5.55.tar.xz
fe123dd871f7a3fa868c499a957b94f1d815a1e1de964aaff1116c579defd4d9d1e9b7eb418cf114b169b97426ed603bf4b1e61b45ec483df06abe988c6a30ee  fix-xattrs-glibc.patch
ab8eaa2858d5109049b1f9f553198d40e0ef8d78211ad6455f7b491af525bffb16738fed60fc84e960c4889568d25753b9e4a1494834fea48291b33f07000ec2  musl-find_library.patch
6b04a779f0aaf243d398fe28207a7257d74e6fb0487b05fbb6bf56d4f1b842714f51fcb4953214b25c7552d688e8b98d2ef63ef6c29ebed194b9a80870db2d98  custom-bluetooth-h-path.patch
a84483246e413650a904c34c18f5e4f4168c39067d069f48557c330de6eb3db19fd96a4d453d742db3dcb7c7f962722903f62823c752ff90510c89830435ffc0  arm-alignment.patch
d95e36ef3c315a2ddf689c9319e027cf56e8817b0cae139e3ade4742ab6f9efcb3cc4adca178e9bbc8757bd0e3fb924ac2b37e66e70eaa7288202a25339eed7d  mpdecimal-2.5.1.patch
68a3b0bc270e4f7ec8593945c8c891fab988489f4ba9ee78a0e4351df0699db16dfad7d374f13758c80962b0cea048ff577c0462857cd13919d6cefa1f6a382f  bpo-43112.patch
"