init

#!/bin/sh
#
# Make sure dinit runs with a clean environment,
# while also ensuring that PATH is set in container
# environments
#

# source this file if it exists, for any overrides
if [ -r /etc/dinit/init ]; then
    . /etc/dinit/init
fi

# global default, may be "unlimited" or any integer value
if [ -n "$dinit_rlimit_core" ]; then
    ulimit -c "$dinit_rlimit_core"
fi

if [ "$dinit_auto_recovery" = "1" ]; then
    set -- --auto-recovery "$@"
fi

if [ "$dinit_quiet" = "1" ]; then
    set -- --quiet "$@"
fi

if [ -n "$dinit_log_level" ]; then
    set -- --log-level "$dinit_log_level" "$@"
fi

if [ -n "$dinit_console_level" ]; then
    set -- --console-level "$dinit_console_level" "$@"
fi

if [ -n "$dinit_log_file" ]; then
    set -- --log-file "$dinit_log_file" "$@"
fi

unset dinit_auto_recovery dinit_quiet dinit_log_level
unset dinit_console_level dinit_log_file

export PATH=@DEFAULT_PATH_ENV@

# in a container, exec directly as we don't have a way to deal with
# the init env after the fact, and there is no initramfs anyway
if [ -n "${container+x}" ]; then
    exec @DINIT_PATH@ "$@"
fi

# afaik getent is not a posix command
getent_cmd=$(command -v getent)

if [ -n "$getent_cmd" ]; then
    # retrieve using getent if we can
    HOME=$("$getent_cmd" passwd root | cut -f6 -d:)
else
    # otherwise just grep from the passwd database...
    HOME=$(grep "^root:" /etc/passwd | cut -f6 -d:)
fi

# fallback just in case we don't have anything
[ -n "$HOME" ] || HOME=/

# minimal defaults
set -- PATH=@DEFAULT_PATH_ENV@ "HOME=$HOME" @DINIT_PATH@ "$@"

# these need to be readable before we have procfs
if [ "$dinit_early_debug" ]; then
    set -- \
        dinit_early_debug=$dinit_early_debug \
        dinit_early_debug_slow=$dinit_early_debug_slow \
        dinit_early_debug_log=$dinit_early_debug_log \
        "$@"
fi

# also respect this
if [ "$dinit_early_root_remount" ]; then
    set -- dinit_early_root_remount=$dinit_early_root_remount "$@"
fi

# if not a container, exec in a mostly clean env...
exec env -i "$@"