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angie-conv-image/image-entry.sh

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2024-07-11 13:35:07 +03:00
#!/bin/sh
set -f
iep_preserve_env() {
## preserve LD_PRELOAD
unset __IEP_LD_PRELOAD
__IEP_LD_PRELOAD="${LD_PRELOAD:-}"
unset LD_PRELOAD
## glibc: preserve MALLOC_ARENA_MAX
unset __IEP_MALLOC_ARENA_MAX
__IEP_MALLOC_ARENA_MAX=${MALLOC_ARENA_MAX:-2}
export MALLOC_ARENA_MAX=2
}
iep_restore_env() {
unset IEP_VERBOSE IEP_TRACE IEP_ROOT IEP_LOCAL_OVERRIDE
## restore LD_PRELOAD
if [ -n "${__IEP_LD_PRELOAD}" ] ; then
export LD_PRELOAD="${__IEP_LD_PRELOAD}"
fi
unset __IEP_LD_PRELOAD
## glibc: restore MALLOC_ARENA_MAX
if [ "${MALLOC_ARENA_MAX}" = 2 ] ; then
export MALLOC_ARENA_MAX="${__IEP_MALLOC_ARENA_MAX}"
fi
unset __IEP_MALLOC_ARENA_MAX
}
iep_preserve_env
## early setup TMPDIR (affects "mktemp")
export TMPDIR=/run/angie/tmp
[ -d "${TMPDIR}" ] || install -d -m 03777 "${TMPDIR}"
## RFC: no need to run entire entrypoint for custom command
# case "$1" in
# angie | */angie ) ;;
# * )
# unset IEP_INIT DUMB_INIT_ARGS
# iep_restore_env
# exec "$@"
# ;;
# esac
unset __IEP_SRC ; __IEP_SRC="${0##*/}"
. /image-entry.d/00-common.envsh
unexport IEP_INIT DUMB_INIT_ARGS
## run parts (if any)
while read -r f ; do
[ -n "$f" ] || continue
[ -f "$f" ] || continue
case "$f" in
*.envsh )
if ! [ -x "$f" ] ; then
log "NOT sourcing $f - not executable"
continue
fi
log_always "sourcing $f"
__IEP_SRC="$f"
. "$f"
__IEP_SRC="${0##*/}"
;;
* )
if ! [ -x "$f" ] ; then
log "NOT running $f - not executable"
continue
fi
log_always "running $f"
"$f"
;;
esac
done <<EOF
$(
if [ -d /image-entry ] ; then
overlay-dir-list.sh /image-entry.d /image-entry
else
find /image-entry.d/ -follow -type f | sort -V
fi
)
EOF
iep_restore_env
IEP_INIT=$(gobool_to_int "${IEP_INIT:-0}" 0)
if [ "${IEP_INIT}" = 0 ] ; then
exec "$@"
else
exec dumb-init ${DUMB_INIT_ARGS} "$@"
fi