xbps-src: introduce support for multiple chroot implementations.
Available implementations at common/chroot-style/*.sh. Each .sh script there implements a chroot style to be able to chroot and bind mount with multiple utilities. The current supported list: - uunshare (uses xbps-uunshare(8)) - uchroot (uses xbps-uchroot(8)) - proot (uses proot, see http://proot.me) The XBPS_CHROOT_CMD can be set in etc/conf to use a specific implementation, and XBPS_CHROOT_CMD_ARGS to pass in additional arguments to the cmd.
This commit is contained in:
Juan RP
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5 changed files with 93 additions and 39 deletions
24
common/chroot-style/proot.sh
Executable file
24
common/chroot-style/proot.sh
Executable file
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@ -0,0 +1,24 @@
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#!/bin/sh
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#
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# This chroot script uses proot (see http://proot.me)
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#
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readonly MASTERDIR="$1"
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readonly DISTDIR="$2"
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readonly HOSTDIR="$3"
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readonly EXTRA_ARGS="$4"
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readonly COMMAND="$5"
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shift 5
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readonly COMMAND_ARGS="$@"
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if ! command -v proot >/dev/null 2>&1; then
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exit 1
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fi
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if [ -z "$MASTERDIR" -o -z "$DISTDIR" -o -z "$COMMAND" ]; then
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echo "$0 MASTERDIR/DISTDIR/COMMAND not set"
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exit 1
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fi
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exec proot -r $XBPS_MASTERDIR -w / -b $DISTDIR:/void-packages \
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${HOSTDIR:+-b $HOSTDIR:/host} -b /proc:/proc -b /dev:/dev \
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-b /sys:/sys $EXTRA_ARGS $COMMAND $COMMAND_ARGS
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22
common/chroot-style/uchroot.sh
Executable file
22
common/chroot-style/uchroot.sh
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@ -0,0 +1,22 @@
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#!/bin/sh
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#
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# This chroot script uses xbps-uchroot(8).
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#
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readonly MASTERDIR="$1"
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readonly DISTDIR="$2"
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readonly HOSTDIR="$3"
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readonly EXTRA_ARGS="$4"
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readonly COMMAND="$5"
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shift 5
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readonly COMMAND_ARGS="$@"
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if ! command -v xbps-uchroot >/dev/null 2>&1; then
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exit 1
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fi
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if [ -z "$MASTERDIR" -o -z "$DISTDIR" -o -z "$COMMAND" ]; then
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echo "$0 MASTERDIR/DISTDIR/COMMAND not set"
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exit 1
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fi
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exec xbps-uchroot $EXTRA_ARGS -D $DISTDIR ${HOSTDIR:+-H $HOSTDIR} $XBPS_MASTERDIR $COMMAND $COMMAND_ARGS
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22
common/chroot-style/uunshare.sh
Executable file
22
common/chroot-style/uunshare.sh
Executable file
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@ -0,0 +1,22 @@
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#!/bin/sh
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#
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# This chroot script uses xbps-uunshare(8) with user_namespaces(7).
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#
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readonly MASTERDIR="$1"
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readonly DISTDIR="$2"
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readonly HOSTDIR="$3"
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readonly EXTRA_ARGS="$4"
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readonly COMMAND="$5"
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shift 5
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readonly COMMAND_ARGS="$@"
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if ! command -v xbps-uunshare >/dev/null 2>&1; then
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exit 1
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fi
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if [ -z "$MASTERDIR" -o -z "$DISTDIR" -o -z "$COMMAND" ]; then
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echo "$0 MASTERDIR/DISTDIR/COMMAND not set"
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exit 1
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fi
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exec xbps-uunshare $EXTRA_ARGS -D $DISTDIR ${HOSTDIR:+-H $HOSTDIR} $XBPS_MASTERDIR $COMMAND $COMMAND_ARGS
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@ -145,11 +145,9 @@ chroot_sync_repos() {
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if [ -z "$XBPS_SKIP_REMOTEREPOS" ]; then
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# Make sure to sync index for remote repositories.
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xbps-uunshare $XBPS_MASTERDIR /usr/sbin/xbps-install -S
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if [ $? -eq 99 ]; then
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# userns not supported, fallback to uchroot
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xbps-uchroot $XBPS_MASTERDIR /usr/sbin/xbps-install -S
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fi
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$XBPS_COMMONDIR/chroot-style/${XBPS_CHROOT_CMD:=uunshare}.sh \
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$XBPS_MASTERDIR $XBPS_DISTDIR "$XBPS_HOSTDIR" \
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"$XBPS_CHROOT_CMD_ARGS" /usr/sbin/xbps-install -S
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fi
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if [ -n "$XBPS_CROSS_BUILD" ]; then
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@ -160,13 +158,9 @@ chroot_sync_repos() {
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# Make sure to sync index for remote repositories.
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if [ -z "$XBPS_SKIP_REMOTEREPOS" ]; then
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env XBPS_TARGET_ARCH=$XBPS_TARGET_ARCH \
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xbps-uunshare $XBPS_MASTERDIR /usr/sbin/xbps-install \
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-r $XBPS_CROSS_BASE -S
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if [ $? -eq 99 ]; then
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env XBPS_TARGET_ARCH=$XBPS_TARGET_ARCH \
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xbps-uchroot $XBPS_MASTERDIR /usr/sbin/xbps-install \
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-r $XBPS_CROSS_BASE -S
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fi
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$XBPS_COMMONDIR/chroot-style/${XBPS_CHROOT_CMD:=uunshare}.sh \
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$XBPS_MASTERDIR $XBPS_DISTDIR "$XBPS_HOSTDIR" "$XBPS_CHROOT_CMD_ARGS" \
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/usr/sbin/xbps-install -r $XBPS_CROSS_BASE -S
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fi
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fi
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@ -174,27 +168,14 @@ chroot_sync_repos() {
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}
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chroot_handler() {
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local action="$1" pkg="$2" rv=0 arg= _envargs= _chargs=
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local action="$1" pkg="$2" rv=0 arg= _envargs=
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if [ -n "$IN_CHROOT" -o -z "$CHROOT_READY" ]; then
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return 0
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fi
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# Debian uses /run/shm instead...
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if [ -d /run/shm ]; then
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mkdir -p ${XBPS_MASTERDIR}/run/shm
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_chargs+=" -S /run/shm"
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elif [ -d /dev/shm ]; then
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mkdir -p ${XBPS_MASTERDIR}/dev/shm
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_chargs+=" -S /dev/shm"
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fi
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if [ -n "$XBPS_HOSTDIR" ]; then
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_chargs+=" -H $XBPS_HOSTDIR"
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fi
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if [ ! -d $XBPS_MASTERDIR/void-packages ]; then
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mkdir -p $XBPS_MASTERDIR/void-packages
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fi
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_chargs+=" -D ${XBPS_DISTDIR}"
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[ -z "$action" -a -z "$pkg" ] && return 1
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@ -207,13 +188,9 @@ chroot_handler() {
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esac
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if [ "$action" = "chroot" ]; then
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xbps-uunshare ${_chargs} $XBPS_MASTERDIR /bin/xbps-shell
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$XBPS_COMMONDIR/chroot-style/${XBPS_CHROOT_CMD:=uunshare}.sh \
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$XBPS_MASTERDIR $XBPS_DISTDIR "$XBPS_HOSTDIR" "$XBPS_CHROOT_CMD_ARGS" /bin/xbps-shell
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rv=$?
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if [ $rv -eq 99 ]; then
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# userns not supported, fallback to uchroot
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xbps-uchroot ${_chargs} $XBPS_MASTERDIR /bin/xbps-shell
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rv=$?
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fi
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else
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[ -n "$XBPS_CROSS_BUILD" ] && arg="$arg -a $XBPS_CROSS_BUILD"
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[ -n "$XBPS_KEEP_ALL" ] && arg="$arg -C"
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@ -230,14 +207,10 @@ chroot_handler() {
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action="$arg $action"
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env -i PATH="/usr/bin:/usr/sbin:$PATH" HOME=/tmp IN_CHROOT=1 LANG=en_US.UTF-8 \
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xbps-uunshare ${_chargs} $XBPS_MASTERDIR /void-packages/xbps-src $action $pkg
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$XBPS_COMMONDIR/chroot-style/${XBPS_CHROOT_CMD:=uunshare}.sh \
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$XBPS_MASTERDIR $XBPS_DISTDIR "$XBPS_HOSTDIR" "$XBPS_CHROOT_CMD_ARGS" \
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/void-packages/xbps-src $action $pkg
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rv=$?
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if [ $rv -eq 99 ]; then
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# userns not supported, fallback to uchroot
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env -i PATH="/usr/bin:/usr/sbin:$PATH" HOME=/tmp IN_CHROOT=1 LANG=en_US.UTF-8 \
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xbps-uchroot ${_chargs} $XBPS_MASTERDIR /void-packages/xbps-src $action $pkg
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rv=$?
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fi
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fi
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return $rv
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@ -88,3 +88,16 @@ XBPS_SUCMD="sudo /bin/sh -c"
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# override the global options defined above for the matching package.
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#
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#XBPS_PKG_OPTIONS_foo=opt,~opt2,opt3,~opt4
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# [OPTIONAL]
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# Set the preferred chroot style. Available styles at common/chroot-style/*.sh:
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#
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# - uunshare (uses xbps-uunshare(8), user namespaces)
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# - uchroot (uses xbps-uchroot(8), namespaces, setgid)
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# - proot (uses proot, external, does not need special permissions)
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#
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# The order is already set as shown above, but can be overriden below.
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# Additional arguments to the chroot style can be passed in via XBPS_CHROOT_CMD_ARGS.
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#
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#XBPS_CHROOT_CMD=proot
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#XBPS_CHROOT_CMD_ARGS=""
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