exec.exec

#!/bin/bash
#
# Copyright (c) 2017, SingularityWare, LLC. All rights reserved.
#
# See the COPYRIGHT.md file at the top-level directory of this distribution and at
# https://github.com/singularityware/singularity/blob/master/COPYRIGHT.md.
#
# This file is part of the Singularity Linux container project. It is subject to the license
# terms in the LICENSE.md file found in the top-level directory of this distribution and
# at https://github.com/singularityware/singularity/blob/master/LICENSE.md. No part
# of Singularity, including this file, may be copied, modified, propagated, or distributed
# except according to the terms contained in the LICENSE.md file.
#
# This file also contains content that is covered under the LBNL/DOE/UC modified
# 3-clause BSD license and is subject to the license terms in the LICENSE-LBNL.md
# file found in the top-level directory of this distribution and at
# https://github.com/singularityware/singularity/blob/master/LICENSE-LBNL.md.


## Basic sanity
if [ -z "$SINGULARITY_libexecdir" ]; then
    echo "Could not identify the Singularity libexecdir."
    exit 1
fi

## Load functions
if [ -f "$SINGULARITY_libexecdir/singularity/functions" ]; then
    . "$SINGULARITY_libexecdir/singularity/functions"
else
    echo "Error loading functions: $SINGULARITY_libexecdir/singularity/functions"
    exit 1
fi

if [ -f "${HOME:-}/.singularity-init" ]; then
    . "${HOME:-}/.singularity-init"
fi

if [ -f "$SINGULARITY_libexecdir/singularity/cli/action_argparser.sh" ]; then
    . "$SINGULARITY_libexecdir/singularity/cli/action_argparser.sh"
else
    message ERROR "Could not find the action argument parser\n"
    exit 1
fi

if [ -f "$SINGULARITY_libexecdir/singularity/cli/$SINGULARITY_COMMAND.info" ]; then
    . "$SINGULARITY_libexecdir/singularity/cli/$SINGULARITY_COMMAND.info"
else
    message ERROR "Could not find the info file for: $SINGULARITY_COMMAND\n"
    ABORT 255
fi

if [ -z "${SINGULARITY_IMAGE:-}" ]; then
    SINGULARITY_IMAGE="${1:-}"
    export SINGULARITY_IMAGE
    shift
fi

if [ -z "${SINGULARITY_IMAGE:-}" ]; then
    exec "$SINGULARITY_libexecdir/singularity/cli/help.exec" "$SINGULARITY_COMMAND"
fi

if [ -n "${SINGULARITY_DAEMON_JOIN:-}" ]; then
    SINGULARITY_DAEMON_FILE=`singularity_daemon_file`
    export SINGULARITY_DAEMON_FILE
fi

if [ -f "$SINGULARITY_sysconfdir/singularity/init" ]; then
    . "$SINGULARITY_sysconfdir/singularity/init"
fi


if [ -x "$SINGULARITY_libexecdir/singularity/image-handler.sh" ]; then
    . "$SINGULARITY_libexecdir/singularity/image-handler.sh"
fi


if [ -z "${SINGULARITY_NOSUID:-}" -a -u "$SINGULARITY_libexecdir/singularity/bin/action-suid" ]; then
    exec "$SINGULARITY_libexecdir/singularity/bin/action-suid" "$@" <&0
elif [ -x "$SINGULARITY_libexecdir/singularity/bin/action" ]; then
    exec "$SINGULARITY_libexecdir/singularity/bin/action" "$@" <&0
else
    message ERROR "Could not locate the Singularity binary: $SINGULARITY_libexecdir/singularity/bin/action\n"
    exit 1
fi