poky/oe-init-build-env

#!/bin/sh

# OE Build Environment Setup Script
#
# Copyright (C) 2006-2011 Linux Foundation
#
# SPDX-License-Identifier: GPL-2.0-or-later
#

#
# Normally this is called as '. ./oe-init-build-env <builddir>'
#
# This works in most shells (not dash), but not all of them pass the arguments
# when being sourced.  To workaround the shell limitation use "set <builddir>"
# prior to sourcing this script.
#
if [ -n "$BASH_SOURCE" ]; then
    THIS_SCRIPT=$BASH_SOURCE
elif [ -n "$ZSH_NAME" ]; then
    THIS_SCRIPT=$0
else
    THIS_SCRIPT="$(pwd)/oe-init-build-env"
    if [ ! -e "$THIS_SCRIPT" ]; then
        echo "Error: $THIS_SCRIPT doesn't exist!" >&2
        echo "Please run this script in oe-init-build-env's directory." >&2
        exit 1
    fi
fi
if [ -n "$BBSERVER" ]; then
    unset BBSERVER
fi

if [ -z "$ZSH_NAME" ] && [ "$0" = "$THIS_SCRIPT" ]; then
    echo "Error: This script needs to be sourced. Please run as '. $THIS_SCRIPT'" >&2
    exit 1
fi

if [ -z "$OEROOT" ]; then
    OEROOT=$(dirname "$THIS_SCRIPT")
    OEROOT=$(readlink -f "$OEROOT")
fi
unset THIS_SCRIPT

export OEROOT
. "$OEROOT"/scripts/oe-buildenv-internal &&
    TEMPLATECONF="$TEMPLATECONF" "$OEROOT"/scripts/oe-setup-builddir || {
    unset OEROOT
    return 1
}
unset OEROOT

[ -z "$BUILDDIR" ] || cd "$BUILDDIR"