From ab97e5aa510f48ce96f2fde8a0e0c5d3bd3a1bee Mon Sep 17 00:00:00 2001
From: icp <pangolin@vivaldi.net>
Date: Fri, 13 Jan 2023 22:21:19 +0530
Subject: [PATCH] Enable usage of rust-sccache for cargo builds

---
 common/build-helper/rust.sh       | 7 +++++++
 common/xbps-src/shutils/chroot.sh | 4 ++--
 etc/defaults.conf                 | 6 ++++++
 xbps-src                          | 2 +-
 4 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/common/build-helper/rust.sh b/common/build-helper/rust.sh
index 22bfd980ba9e3..ca80e0d74e6cc 100644
--- a/common/build-helper/rust.sh
+++ b/common/build-helper/rust.sh
@@ -30,6 +30,13 @@ else
 	unset CARGO_BUILD_TARGET
 fi
 
+if [ -n "$XBPS_SCCACHE" ] && [ "$pkgname" != "rust-sccache" ]; then
+	hostmakedepends+=" rust-sccache"
+	export RUSTC_WRAPPER="/usr/bin/sccache"
+	export SCCACHE_DIR="${XBPS_HOSTDIR}/sccache"
+	export SCCACHE_IDLE_TIMEOUT=30
+fi
+
 # prevent cargo stripping debug symbols
 export CARGO_PROFILE_RELEASE_STRIP=false
 
diff --git a/common/xbps-src/shutils/chroot.sh b/common/xbps-src/shutils/chroot.sh
index fc17dae4fdbe9..a85afc5b88cbf 100644
--- a/common/xbps-src/shutils/chroot.sh
+++ b/common/xbps-src/shutils/chroot.sh
@@ -96,8 +96,8 @@ PATH=/void-packages:/usr/bin
 
 exec env -i -- SHELL=/bin/sh PATH="\$PATH" DISTCC_HOSTS="\$XBPS_DISTCC_HOSTS" DISTCC_DIR="/host/distcc" \
     ${XBPS_ARCH+XBPS_ARCH=$XBPS_ARCH} ${XBPS_CHECK_PKGS+XBPS_CHECK_PKGS=$XBPS_CHECK_PKGS} \
-    CCACHE_DIR="/host/ccache" IN_CHROOT=1 LC_COLLATE=C LANG=en_US.UTF-8 TERM=linux HOME="/tmp" \
-    PS1="[\u@$XBPS_MASTERDIR \W]$ " /bin/bash +h "\$@"
+    CCACHE_DIR="/host/ccache" SCCACHE_DIR="/host/sccache" IN_CHROOT=1 LC_COLLATE=C LANG=en_US.UTF-8 \
+    TERM=linux HOME="/tmp" PS1="[\u@$XBPS_MASTERDIR \W]$ " /bin/bash +h "\$@"
 _EOF
 
     chmod 755 $XBPS_MASTERDIR/bin/xbps-shell
diff --git a/etc/defaults.conf b/etc/defaults.conf
index f70e4ea3d0067..422f851136258 100644
--- a/etc/defaults.conf
+++ b/etc/defaults.conf
@@ -55,6 +55,12 @@ XBPS_SUCMD="sudo /bin/sh -c"
 #
 #XBPS_CCACHE=yes
 
+# [OPTIONAL]
+# Enable or disable sccache when building packages. The sccache directory
+# is stored in the hostdir, i.e hostdir/sccache.
+#
+#XBPS_SCCACHE=yes
+
 # [OPTIONAL]
 # Enable or disable distcc when building packages. The distcc directory
 # is stored in the hostdir, i.e hostdir/distcc.
diff --git a/xbps-src b/xbps-src
index 77695b9f510d3..2b1fca4db0c8b 100755
--- a/xbps-src
+++ b/xbps-src
@@ -672,7 +672,7 @@ export XBPS_SHUTILSDIR XBPS_CROSSPFDIR XBPS_TRIGGERSDIR \
     XBPS_CMPVER_CMD XBPS_FETCH_CMD XBPS_VERSION XBPS_BUILDSTYLEDIR \
     XBPS_CPPFLAGS XBPS_CFLAGS XBPS_CXXFLAGS XBPS_FFLAGS XBPS_LDFLAGS \
     XBPS_MAKEJOBS XBPS_BUILD_FORCEMODE XBPS_USE_GIT_REVS XBPS_DEBUG_PKGS \
-    XBPS_CHECK_PKGS XBPS_CCACHE XBPS_DISTCC XBPS_DISTCC_HOSTS XBPS_SKIP_DEPS \
+    XBPS_CHECK_PKGS XBPS_SCCACHE XBPS_CCACHE XBPS_DISTCC XBPS_DISTCC_HOSTS XBPS_SKIP_DEPS \
     XBPS_SKIP_REMOTEREPOS XBPS_CROSS_BUILD XBPS_ARG_PKG_OPTIONS XBPS_CONFIG_FILE \
     XBPS_KEEP_ALL XBPS_HOSTDIR XBPS_MASTERDIR XBPS_SRC_VERSION \
     XBPS_DESTDIR XBPS_MACHINE XBPS_TEMP_MASTERDIR XBPS_BINPKG_EXISTS \