void-packages/xbps-src/shutils/chroot.sh.in

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#-
# Copyright (c) 2008-2011 Juan Romero Pardines.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#-
_mount()
{
MASTERDIR="${XBPS_MASTERDIR}" DISTRIBUTIONDIR="${XBPS_DISTRIBUTIONDIR}" \
HOSTDIR="${XBPS_HOSTDIR}" ${SUDO_CMD} \
@@XBPS_INSTALL_LIBEXECDIR@@/chroot-helper mount
return $?
}
_umount()
{
MASTERDIR="${XBPS_MASTERDIR}" DISTRIBUTIONDIR="${XBPS_DISTRIBUTIONDIR}" \
HOSTDIR="${XBPS_HOSTDIR}" ${SUDO_CMD} \
@@XBPS_INSTALL_LIBEXECDIR@@/chroot-helper umount
return $?
}
chroot_init()
{
trap "_umount && return $?" 0 INT QUIT TERM
[ -n "$bootstrap" ] && return 0
if [ "${CHROOT_CMD}" = "chroot" ]; then
if [ "$(id -u)" -ne 0 ]; then
msg_error "Root permissions are required for the chroot, try again."
fi
fi
check_installed_pkg base-chroot-0.11
if [ $? -ne 0 ]; then
echo "${XBPS_MASTERDIR} has not been prepared for chroot operations."
echo "Please install 'base-chroot>=0.11' and try again."
exit 1
fi
msg_normal "Entering into the chroot on $XBPS_MASTERDIR.\n"
if [ ! -d $XBPS_MASTERDIR/usr/local/etc ]; then
mkdir -p $XBPS_MASTERDIR/usr/local/etc
fi
XBPSSRC_CF=$XBPS_MASTERDIR/usr/local/etc/xbps-src.conf
cat > $XBPSSRC_CF <<_EOF
# Generated configuration file by xbps-src, DO NOT EDIT!
XBPS_DISTRIBUTIONDIR=/xbps
XBPS_MASTERDIR=/
XBPS_CFLAGS="$XBPS_CFLAGS"
XBPS_CXXFLAGS="$XBPS_CFLAGS"
XBPS_LDFLAGS="$XBPS_LDFLAGS"
XBPS_FETCH_CMD="xbps-uhelper.static fetch"
XBPS_COMPRESS_CMD="$XBPS_COMPRESS_CMD"
_EOF
if [ -n "$XBPS_MAKEJOBS" ]; then
echo "XBPS_MAKEJOBS=$XBPS_MAKEJOBS" >> $XBPSSRC_CF
fi
if [ -n "$XBPS_PREFER_BINPKG_DEPS" ]; then
echo "XBPS_PREFER_BINPKG_DEPS=$XBPS_PREFER_BINPKG_DEPS" >> $XBPSSRC_CF
fi
if [ -n "$XBPS_COMPRESS_LEVEL" ]; then
echo "XBPS_COMPRESS_LEVEL=$XBPS_COMPRESS_LEVEL" >> $XBPSSRC_CF
fi
if [ -n "$XBPS_HOSTDIR" ]; then
echo "XBPS_HOSTDIR=/host" >> $XBPSSRC_CF
fi
if [ -n "$XBPS_CCACHE" ]; then
echo "XBPS_CCACHE=$XBPS_CCACHE" >> $XBPSSRC_CF
fi
echo "# End of configuration file." >> $XBPSSRC_CF
if [ -d $XBPS_MASTERDIR/tmp ]; then
if [ ! -f $XBPS_MASTERDIR/.xbps_mount_bind_done ]; then
msg_normal "Cleaning up /tmp...\n"
[ -h ${XBPS_MASTERDIR}/tmp ] || rm -rf $XBPS_MASTERDIR/tmp/*
fi
fi
[ -s $XBPS_MASTERDIR/bin/xbps-shell ] && return 0
# Create custom script to start the chroot bash shell.
cat > $XBPS_MASTERDIR/bin/xbps-shell <<_EOF
#!/bin/sh
. /usr/local/etc/xbps-src.conf
. /usr/local/share/xbps-src/shutils/init_funcs.sh
set_defvars
exec env PS1="[\u@masterdir-chroot \W]$ " /bin/bash "$@"
_EOF
chmod 755 $XBPS_MASTERDIR/bin/xbps-shell
}
prepare_chroot()
{
local f
# Create some required files.
cp -f /etc/mtab $XBPS_MASTERDIR/etc
cp -f /etc/resolv.conf $XBPS_MASTERDIR/etc
[ -f /etc/localtime ] && cp -f /etc/localtime $XBPS_MASTERDIR/etc
for f in run/utmp log/btmp log/lastlog log/wtmp; do
touch -f $XBPS_MASTERDIR/var/$f
done
for f in run/utmp log/lastlog; do
chmod 644 $XBPS_MASTERDIR/var/$f
done
[ ! -d $XBPS_MASTERDIR/boot ] && mkdir -p $XBPS_MASTERDIR/boot
cat > $XBPS_MASTERDIR/etc/passwd <<_EOF
root:x:0:0:root:/root:/bin/bash
nobody:x:99:99:Unprivileged User:/dev/null:/bin/false
$(whoami):x:$(id -u):$(id -g):$(whoami) user:/dev/null:/bin/bash
_EOF
# Default group list as specified by LFS.
cat > $XBPS_MASTERDIR/etc/group <<_EOF
root:x:0:
bin:x:1:
sys:x:2:
kmem:x:3:
wheel:x:4:
tty:x:5:
tape:x:6:
daemon:x:7:
floppy:x:8:
disk:x:9:
lp:x:10:
dialout:x:11:
audio:x:12:
video:x:13:
utmp:x:14:
usb:x:15:
cdrom:x:16:
optical:x:17:
mail:x:18:
storage:x:19:
scanner:x:20:
nogroup:x:99:
users:x:1000:
$(whoami):x:$(id -g):
_EOF
# Default file as in Ubuntu.
cat > $XBPS_MASTERDIR/etc/hosts <<_EOF
127.0.0.1 xbps localhost.localdomain localhost
127.0.1.1 xbps
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
_EOF
create_binsh_symlink
touch $XBPS_MASTERDIR/.xbps_perms_done
}
create_binsh_symlink()
{
if [ ! -h $XBPS_MASTERDIR/bin/sh ]; then
cd $XBPS_MASTERDIR/bin
if [ -x bash ]; then
ln -sf bash sh
elif [ -x dash ]; then
ln -sf dash sh
elif [ -x busybox ]; then
ln -sf busybox sh
else
msg_error "cannot find a suitable shell for chroot!\n"
fi
fi
}
prepare_binpkg_repos()
{
local repo CONF_FILE
case "${XBPS_VERSION}" in
0.1[0-9].[0-9]*)
mkdir -p ${XBPS_MASTERDIR}/usr/local/etc/xbps
for f in /etc /usr/local/etc; do
for conf in conf repositories; do
if [ ! -f $XBPS_MASTERDIR/usr/local/etc/xbps/${conf}.plist ]; then
[ -d $f ] && cp -f $f/xbps/${conf}.plist \
${XBPS_MASTERDIR}/usr/local/etc/xbps
fi
done
done
msg_normal "Synchronizing index for remote repositories...\n"
${XBPS_REPO_CMD} sync 2>/dev/null
;;
0.[89].[0-9]*)
CONF_FILE=$XBPS_MASTERDIR/usr/local/etc/xbps-conf.plist
for f in /etc /usr/local/etc; do
if [ -f $f/xbps-conf.plist -a \
! -f $CONF_FILE ]; then
cp -f $f/xbps-conf.plist \
${XBPS_MASTERDIR}/usr/local/etc
fi
done
# XBPS utils >= 0.9.0.
msg_normal "Synchronizing index for remote repositories...\n"
${XBPS_REPO_CMD} sync
;;
*)
for repo in ${XBPS_REPO_LIST}; do
${XBPS_REPO_CMD} add ${repo} 2>/dev/null
[ $? -ne 0 ] && \
msg_warn "Failed to sync pkg-index from ${repo}\n"
done
;;
esac
}
create_busybox_links()
{
local lbindir=$XBPS_MASTERDIR/usr/local/bin
[ -f $XBPS_MASTERDIR/.busybox_done ] && return 0
[ ! -d ${lbindir} ] && mkdir -p ${lbindir}
# Create other symlinks in /usr/local/bin
cd ${lbindir} || return 1
for f in $(${XBPS_MASTERDIR}/bin/busybox --list); do
if [ "$f" = "tar" -o "$f" = "sh" -o "$f" = "xz" ]; then
continue
fi
ln -s ../../../bin/busybox $f
done
touch -f $XBPS_MASTERDIR/.busybox_done
}
install_xbps_utils()
{
local needed _cmd
local xbps_prefix=$XBPS_MASTERDIR/usr/local
for f in bin repo uhelper; do
if [ ! -x $xbps_prefix/sbin/xbps-${f}.static ]; then
needed=yes
fi
done
if [ -n "$needed" ]; then
echo "=> Installing static XBPS utils into masterdir."
for f in bin repo uhelper; do
_cmd=$(which xbps-${f}.static 2>/dev/null)
if [ -z "${_cmd}" ]; then
echo "Unexistent xbps-uhelper.static file!"
exit 1
fi
cp -f ${_cmd} $xbps_prefix/sbin
done
fi
}
xbps_chroot_handler()
{
local action="$1" pkg="$2" rv=0 arg
[ -z "$action" -a -z "$pkg" ] && return 1
if [ ! -f $XBPS_MASTERDIR/.xbps_perms_done ]; then
echo -n "==> Preparing chroot on $XBPS_MASTERDIR... "
prepare_chroot
echo "done."
fi
[ ! -d "$XBPS_MASTERDIR/tmp" ] && mkdir -p "$XBPS_MASTERDIR/tmp"
chroot_init
create_binsh_symlink
create_busybox_links
install_xbps_utils
_mount || return $?
if [ -n "$XBPS_PREFER_BINPKG_DEPS" ]; then
prepare_binpkg_repos
fi
# Reinstall xbps-src in the chroot
msg_normal "Installing xbps-src in the masterdir...\n"
env IN_CHROOT=yes LANG=C \
${CHROOT_CMD} $XBPS_MASTERDIR sh -c \
"cd /xbps/xbps-src && make IN_CHROOT=1 install clean" \
2>&1 >/dev/null || return $?
# Update ld.so(8) cache
msg_normal "Updating ld.so(8) cache...\n"
${CHROOT_CMD} $XBPS_MASTERDIR sh -c "ldconfig" || return $?
if [ "$action" = "chroot" ]; then
env IN_CHROOT=1 LANG=C \
${CHROOT_CMD} $XBPS_MASTERDIR /bin/xbps-shell || rv=$?
else
[ -n "$KEEP_WRKSRC" ] && arg="$arg -C"
[ -n "$KEEP_AUTODEPS" ] && arg="$arg -K"
[ -n "$DESTDIR_ONLY_INSTALL" ] && arg="$arg -D"
[ -n "$BUILD_BINPKG" ] && arg="$arg -B"
action="$arg $action"
env in_chroot=1 IN_CHROOT=1 LANG=C _ORIGINPKG="$pkg" \
${CHROOT_CMD} $XBPS_MASTERDIR sh -c \
"xbps-src $action $pkg" || rv=$?
fi
msg_normal "Exiting from the chroot on $XBPS_MASTERDIR.\n"
return $rv
}