dev-lang/swift-bin: add 6.3.1

Signed-off-by: Itai Ferber <itai@itaiferber.net>

dev-lang/swift-bin/swift-bin-6.3.1.ebuild

@@ -0,0 +1,101 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+LLVM_COMPAT=( {17..21} )
+PYTHON_COMPAT=( python3_{12..14} )
+inherit llvm-r2 python-single-r1 unpacker
+
+DESCRIPTION="A high-level, general-purpose, multi-paradigm, compiled programming language"
+HOMEPAGE="https://www.swift.org"
+SWIFT_PF="${PF/-bin/}"
+SRC_URI="https://github.com/itaiferber/gentoo-distfiles/releases/download/${CATEGORY}/${SWIFT_PF}/${SWIFT_PF}.gpkg.tar"
+S="${WORKDIR}"
+
+LICENSE="Apache-2.0 GPL-2"
+SLOT="6/2"
+KEYWORDS="-* ~amd64"
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+RESTRICT="strip"
+
+RDEPEND="
+	${PYTHON_DEPS}
+	!~dev-lang/swift-5.10.1:0
+	!dev-lang/swift:6/2
+	>=app-arch/zstd-1.5
+	>=app-eselect/eselect-swift-1.0-r1
+	>=dev-db/sqlite-3
+	>=dev-libs/icu-69
+	>=dev-libs/libedit-20221030
+	>=dev-libs/libxml2-2.11.5
+	>=net-misc/curl-8.9.1
+	>=sys-libs/ncurses-6
+	>=virtual/zlib-1.3.1:=
+	dev-lang/python
+	$(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}=')
+"
+
+QA_PREBUILT="*"
+PKG_PREINST_SWIFT_INTENTIONALLY_SET='true'
+
+src_unpack() {
+	unpack_gpkg "${SWIFT_PF}.gpkg.tar"
+}
+
+src_install() {
+	mv "${SWIFT_PF}/image/usr" "${ED}"
+}
+
+pkg_preinst() {
+	# After installation, we ideally want the system to have the latest Swift
+	# version set -- but if the system already has a Swift version set and it
+	# isn't the latest version, that's likely an intentional decision that we
+	# don't want to override.
+	local current_swift_version="$(eselect swift show | tail -n1 | xargs)"
+	local latest_swift_version="$(eselect swift show --latest | tail -n1 | xargs)"
+	[[ "${current_swift_version}" == '(unset)' ]] \
+		|| [[ "${current_swift_version}" == "${latest_swift_version}" ]] \
+		&& PKG_PREINST_SWIFT_INTENTIONALLY_SET='false'
+}
+
+pkg_postinst() {
+	# If the system doesn't have Swift intentionally set to an older version, we
+	# can update to the latest.
+	if [[ "${PKG_PREINST_SWIFT_INTENTIONALLY_SET}" == 'false' ]]; then
+		eselect swift update
+	fi
+
+	# We also want to provide a stable directory which matches our SLOT to avoid
+	# revdep breakages, as patch updates use the same SLOT but otherwise move
+	# the install location on disk.
+	#
+	# See https://bugs.gentoo.org/957730
+	#
+	# We do this in `pkg_postinst` instead of calling `dosym` in `src_install`
+	# because when upgrading from a major version to a patch version, the major
+	# version is still on disk while the patch version is being installed, so
+	# the existing directory is in use and the symlink fails to install.
+	local major_ver="$(ver_cut 1-2)"
+	if [[ "${PV}" != "${major_ver}" ]]; then
+		local libdir="${EROOT}/usr/$(get_libdir)"
+		ln -fsT "${libdir}/${P}" "${libdir}/${PN}-${major_ver}" || die
+	fi
+}
+
+pkg_postrm() {
+	# We don't want to leave behind symlinks pointing to this Swift version on
+	# removal.
+	local current_swift_version="$(eselect swift show | tail -n1 | xargs)"
+	if [[ "${current_swift_version}" == "${P}" ]]; then
+		eselect swift update
+	fi
+
+	# If we installed a SLOT symlink, we also want to remove it here.
+	local major_ver="$(ver_cut 1-2)"
+	local link="${EROOT}/usr/$(get_libdir)/${PN}-${major_ver}"
+	if [[ -L "${link}" && "${PV}" != "${major_ver}" ]]; then
+		rm "${link}"
+	fi
+}