From 5d53ec47661b9e23dad278e2d3ae1a6faa52f404 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sat, 3 Feb 2024 22:41:33 -0500
Subject: apparently rust is required now?

---
 www-client/chromium/chromium-123.0.6272.2.ebuild | 34 +++++++++++++++++++++---
 1 file changed, 30 insertions(+), 4 deletions(-)

(limited to 'www-client/chromium/chromium-123.0.6272.2.ebuild')

diff --git a/www-client/chromium/chromium-123.0.6272.2.ebuild b/www-client/chromium/chromium-123.0.6272.2.ebuild
index 9699d2e..f0efc89 100644
--- a/www-client/chromium/chromium-123.0.6272.2.ebuild
+++ b/www-client/chromium/chromium-123.0.6272.2.ebuild
@@ -5,6 +5,7 @@ EAPI=8
 PYTHON_COMPAT=( python3_{9..11} )
 PYTHON_REQ_USE="xml(+)"
 LLVM_MAX_SLOT=17
+RUST_MIN_VER=1.72.0
 
 CHROMIUM_LANGS="af am ar bg bn ca cs da de el en-GB es es-419 et fa fi fil fr gu he
 	hi hr hu id it ja kn ko lt lv ml mr ms nb nl pl pt-BR pt-PT ro ru sk sl sr
@@ -171,6 +172,7 @@ BDEPEND="
 		>=dev-util/web_page_replay_go-20220314
 		$(depend_clang_llvm_versions 17)
 	)
+	>=dev-lang/rust-${RUST_MIN_VER}[profiler]
 	dev-lang/perl
 	>=dev-util/gn-0.1807
 	>=dev-util/gperf-3.0.3
@@ -324,7 +326,6 @@ src_prepare() {
 		"${FILESDIR}/chromium-118-material-color-utils.patch"
 		"${FILESDIR}/chromium-118-freetype-blink.patch"
 		"${FILESDIR}/chromium-121-blink_libxml2_downgrade.patch"
-		"${FILESDIR}/chromium-123-qrgen-disablerust.patch"
 		"${FILESDIR}/chromium-121-icu74.patch"
 
 		"${FILESDIR}/chromium-111-InkDropHost-crash.patch"
@@ -333,6 +334,10 @@ src_prepare() {
 		"${FILESDIR}/chromium-cross-compile.patch"
 	)
 
+	sed -i -e \
+			"/if (is_clang && toolchain_has_rust) {/,+2d" \
+			build/config/compiler/BUILD.gn || die "Failed to disable bundled compiler builtins"
+
 	default
 
 	mkdir -p third_party/node/linux/node-linux-x64/bin || die
@@ -520,6 +525,7 @@ src_prepare() {
 		third_party/pyyaml
 		third_party/qcms
 		third_party/rnnoise
+		third_party/rust
 		third_party/s2cellid
 		third_party/securemessage
 		third_party/selenium-atoms
@@ -645,6 +651,17 @@ src_prepare() {
 	ln -s "${EPREFIX}"/bin/true buildtools/third_party/eu-strip/bin/eu-strip || die
 }
 
+chromium_rust_version_check() {
+	[[ ${MERGE_TYPE} == binary ]] && return
+	local rustc_version=( $(eselect --brief rust show 2>/dev/null) )
+	rustc_version=${rustc_version[0]#rust-bin-}
+	rustc_version=${rustc_version#rust-}
+
+	[[ -z "${rustc_version}" ]] && die "Failed to determine rust version, check 'eselect rust' output"
+
+	echo $rustc_version
+}
+
 chromium_configure() {
 	# Calling this here supports resumption via FEATURES=keepwork
 	python_setup
@@ -713,6 +730,18 @@ chromium_configure() {
 		myconf_gn+=" host_toolchain=\"//build/toolchain/linux/unbundle:default\""
 	fi
 
+	local rustc_ver
+		rustc_ver=$(chromium_rust_version_check)
+		if ver_test "${rustc_ver}" -lt "${RUST_MIN_VER}"; then
+			eerror "Rust >=${RUST_MIN_VER} is required"
+			eerror "Please run 'eselect rust' and select the correct rust version"
+			die "Selected rust version is too old"
+		else
+			einfo "Using rust ${rustc_ver} to build"
+		fi
+		myconf_gn+=" rust_sysroot_absolute=\"${EPREFIX}/usr/lib/rust/${rustc_ver}/\""
+		myconf_gn+=" rustc_version=\"${rustc_ver}\""
+
 	# Create dummy pkg-config file for libsystemd, only dependency of installer
 	mkdir "${T}/libsystemd" || die
 	cat <<- EOF > "${T}/libsystemd/libsystemd.pc"
@@ -722,9 +751,6 @@ chromium_configure() {
 	EOF
 	local -x PKG_CONFIG_PATH="${PKG_CONFIG_PATH:+"${PKG_CONFIG_PATH}:"}${T}/libsystemd"
 
-	# Disable rust for now; it's only used for testing and we don't need the additional bdep
-	myconf_gn+=" enable_rust=false"
-
 	# GN needs explicit config for Debug/Release as opposed to inferring it from build directory.
 	myconf_gn+=" is_debug=false"
 
-- 
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