export PROOT=$(command -v proot) || $(command -v proot-rs)

if [ -x $CONTAINER_PATH/bin/busybox ]; then

__start $@

exit

fi

[ -n "$ALPINEPROOT_USE_PROOT_RS" ] && [ -x $(command -v proot-rs) ] && unset PROOT && export PROOT=$(command -v proot-rs)

[ -n "$ALPINEPROOT_PROOT_PATH" ] && unset PROOT && export PROOT=$ALPINEPROOT_PROOT_PATH

# Check whenever proot is installed or no

if [ -z "$PROOT" ] || [ ! -x $PROOT ]; then

[ "$(uname -o)" = "Android" ] && pkg=$(command -v pkg) && pkg install proot -y && alpineproot $@ && exit 0

echo "PRoot / PRoot-rs is required in order to execute this script."

echo "More information can go to https://proot-me.github.io"

exit 6

fi

if [ -z $(command -v gzip) ] || [ ! -x $(command -v gzip) ]; then

echo "gzip is required in order to extract Alpine rootfs."

echo "More information can go to https://www.gnu.org/software/gzip/"

exit 6

fi

# Install / Reinstall if container directory is unavailable or empty.

if [ ! -x $CONTAINER_PATH/bin/busybox ]; then

# Download rootfs if there's no rootfs download cache.

if [ ! -f $HOME/.cached_rootfs.tar.gz ]; then

if [ ! -x $(command -v curl) ]; then

[ "$(uname -o)" = "Android" ] && pkg=$(command -v pkg) && pkg install curl -y && alpineproot $@ && exit 0

echo "libcurl is required in order to download rootfs manually"

echo "More information can go to https://curl.se/libcurl"

exit 6

fi

[ -z $CONTAINER_DOWNLOAD_URL ] && __get_container_url

curl -fSL#o $HOME/.cached_rootfs.tar.gz $CONTAINER_DOWNLOAD_URL

if [ $? != 0 ]; then exit $?; fi

fi

[ ! -d $CONTAINER_PATH ] && mkdir -p $CONTAINER_PATH

# Use proot to prevent hard link extraction error

$PROOT --link2symlink tar -xzf $HOME/.cached_rootfs.tar.gz -C $CONTAINER_PATH

# If extraction fail, Delete cached rootfs and try again

[ "$?" != "0" ] && rm -f $HOME/.cached_rootfs.tar.gz && alpineproot $@ && exit 0

echo -e "nameserver 8.8.8.8\nnameserver 8.8.4.4" >$CONTAINER_PATH/etc/resolv.conf

fi

__start $@

CURRENT_VERSION=`curl -fsSL https://alpinelinux.org/downloads/ | grep -oP '(?<=<strong>)[^<] (?=</strong>)'`

[ "$?" != "0" ] && exit $?

CURRENT_VERSION_ID=`echo $CURRENT_VERSION | grep -oE '^[0-9] \.[0-9] '`

echo "The following Alpine Linux version will be installed:"

echo ""

echo "Current Version: ${CURRENT_VERSION}"

echo "Version ID: ${CURRENT_VERSION_ID}"

echo ""

CONTAINER_DOWNLOAD_URL="https://dl-cdn.alpinelinux.org/alpine/v${CURRENT_VERSION_ID}/releases/$(uname -m)/alpine-minirootfs-${CURRENT_VERSION}-$(uname -m).tar.gz"

proot -0 rm -rf $CONTAINER_PATH/proc

mkdir $CONTAINER_PATH/proc

# Proceed make fake /proc/version

echo "Linux version ${ALPINEPROOT_KERNEL_RELEASE:-6.0.0 } (root@localhost) #1 SMP Fri Jul 23 12:00:00 PDT 2021" >$CONTAINER_PATH/proc/.version

# Proceed make fake /proc/stat

[ ! -r /proc/stat ] && cat <<-EOM >$CONTAINER_PATH/proc/.stat

cpu 5742 0 3915 205916 1204 0 339 82 0 0

cpu0 1428 0 904 51706 126 0 108 21 0 0

cpu1 1455 0 846 51772 99 0 87 20 0 0

cpu2 1235 0 864 52026 102 0 65 19 0 0

cpu3 1622 0 1300 50410 876 0 77 21 0 0

intr 1181516 235 9 0 0 1703 0 241 0 0 0 542 0 3 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 1 26315 0 641 571 691 623 674 581 961 599 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

ctxt 199763

btime 1629638266

processes 1

procs_running 1

procs_blocked 0

softirq 562902 0 237872 366 6862 26279 0 9 122617 0 168897

EOM

# Proceed make fake /proc/uptime

[ ! -r /proc/uptime ] && echo "1302.49 5018.43" >$CONTAINER_PATH/proc/.uptime

# Proceed make fake /proc/loadavg

[ ! -r /proc/loadavg ] && echo "0.54 0.22 0.13 1/461 650" >$CONTAINER_PATH/proc/.loadavg

# Proceed make fake /proc/vmstat

[ ! -r /proc/vmstat ] && cat <<-EOM >$CONTAINER_PATH/proc/.vmstat

nr_free_pages 3621122

nr_zone_inactive_anon 13457

nr_zone_active_anon 93331

nr_zone_inactive_file 180805

nr_zone_active_file 116706

nr_zone_unevictable 0

nr_zone_write_pending 273

nr_mlock 0

nr_page_table_pages 1560

nr_kernel_stack 7424

nr_bounce 0

nr_zspages 1385

nr_free_cma 0

numa_hit 9934918

numa_miss 0

numa_foreign 0

numa_interleave 2111

numa_local 9934918

numa_other 0

nr_inactive_anon 13457

nr_active_anon 93331

nr_inactive_file 180805

nr_active_file 116706

nr_unevictable 0

nr_slab_reclaimable 37930

nr_slab_unreclaimable 15580

nr_isolated_anon 0

nr_isolated_file 0

workingset_nodes 73

workingset_refault 1285

workingset_activate 460

workingset_restore 423

workingset_nodereclaim 0

nr_anon_pages 112449

nr_mapped 87383

nr_file_pages 291852

nr_dirty 273

nr_writeback 0

nr_writeback_temp 0

nr_shmem 286

nr_shmem_hugepages 0

nr_shmem_pmdmapped 0

nr_file_hugepages 0

nr_file_pmdmapped 0

nr_anon_transparent_hugepages 1

nr_unstable 0

nr_vmscan_write 4383

nr_vmscan_immediate_reclaim 0

nr_dirtied 45538

nr_written 48611

nr_kernel_misc_reclaimable 0

nr_dirty_threshold 775081

nr_dirty_background_threshold 387067

pgpgin 1116233

pgpgout 217429

pswpin 1

pswpout 4383

pgalloc_dma 0

pgalloc_dma32 0

pgalloc_normal 10007308

pgalloc_movable 0

allocstall_dma 0

allocstall_dma32 0

allocstall_normal 0

allocstall_movable 0

pgskip_dma 0

pgskip_dma32 0

pgskip_normal 0

pgskip_movable 0

pgfree 13629652

pgactivate 92685

pgdeactivate 23439

pglazyfree 8319

pgfault 10640127

pgmajfault 6033

pglazyfreed 0

pgrefill 25344

pgsteal_kswapd 0

pgsteal_direct 0

pgscan_kswapd 0

pgscan_direct 0

pgscan_direct_throttle 0

zone_reclaim_failed 0

pginodesteal 819

slabs_scanned 44091

kswapd_inodesteal 0

kswapd_low_wmark_hit_quickly 0

kswapd_high_wmark_hit_quickly 0

pageoutrun 0

pgrotated 3

drop_pagecache 0

drop_slab 0

oom_kill 0

pgmigrate_success 0

pgmigrate_fail 0

compact_migrate_scanned 0

compact_free_scanned 0

compact_isolated 0

compact_stall 0

compact_fail 0

compact_success 0

compact_daemon_wake 0

compact_daemon_migrate_scanned 0

compact_daemon_free_scanned 0

htlb_buddy_alloc_success 0

htlb_buddy_alloc_fail 0

unevictable_pgs_culled 0

unevictable_pgs_scanned 0

unevictable_pgs_rescued 0

unevictable_pgs_mlocked 0

unevictable_pgs_munlocked 0

unevictable_pgs_cleared 0

unevictable_pgs_stranded 0

thp_fault_alloc 0

thp_fault_fallback 0

thp_collapse_alloc 1

thp_collapse_alloc_failed 0

thp_file_alloc 0

thp_file_mapped 0

thp_split_page 0

thp_split_page_failed 0

thp_deferred_split_page 0

thp_split_pmd 0

thp_split_pud 0

thp_zero_page_alloc 0

thp_zero_page_alloc_failed 0

thp_swpout 0

thp_swpout_fallback 0

balloon_inflate 0

balloon_deflate 0

balloon_migrate 0

swap_ra 0

swap_ra_hit 0

EOM

if [ "$(uname -o)" = "Android" ]; then unset LD_PRELOAD; fi

COMMANDS=$PROOT

COMMANDS =" --link2symlink"

COMMANDS =" --kill-on-exit"

COMMANDS =" --kernel-release=\"${ALPINEPROOT_KERNEL_RELEASE:-5.18}\""

COMMANDS =" -b /dev -b /proc -b /sys"

COMMANDS =" -b /proc/self/fd:/dev/fd"

COMMANDS =" -b /proc/self/fd/0:/dev/stdin"

COMMANDS =" -b /proc/self/fd/1:/dev/stdout"

COMMANDS =" -b /proc/self/fd/2:/dev/stderr"

for f in stat version loadavg vmstat uptime; do

[ -f "$CONTAINER_PATH/proc/.$f" ] && COMMANDS =" -b $CONTAINER_PATH/proc/.$f:/proc/$f"

done

COMMANDS =" -r $CONTAINER_PATH -0 -w /root"

COMMANDS =" -b $CONTAINER_PATH/root:/dev/shm"

# Detect whenever Pulseaudio is installed with POSIX support

if pulseaudio=$(command -v pulseaudio) && [ ! -S $PREFIX/var/run/pulse/native ]; then

if [ -z "$ALPINEPROOT_NO_PULSE" ]; then

! $pulseaudio --check && $pulseaudio --start --exit-idle-time=-1

[ $? = 0 ] && [ -S "$(echo $TMPDIR/pulse-*/native)" ] && COMMANDS =" -b $(echo $TMPDIR/pulse-*/native):/var/run/pulse/native"

fi

else

if [ -z "$ALPINEPROOT_NO_PULSE" ]; then

[ -S $PREFIX/var/run/pulse/native ] && COMMANDS =" -b $PREFIX/var/run/pulse/native:/var/run/pulse/native"

fi

fi

[ -n "$ALPINEPROOT_PROOT_OPTIONS" ] && COMMANDS =" $ALPINEPROOT_PROOT_OPTIONS"

# Detect whenever ALPINEPROOT_BIND_TMPDIR is available or no.

[ -n "$ALPINEPROOT_BIND_TMPDIR" ] && COMMANDS =" -b $TMPDIR:/tmp"

if [ "$#" = 0 ]; then

eval "exec $COMMANDS /bin/su -l"

else

eval "exec $COMMANDS /bin/su -l -c \"$@\""

fi