#!/bin/sh

# This is the bitbake wrapper script that ensures everything is set up
# correctly in the environment, builds pseudo separately if it hasn't
# already been built, and then runs bitbake within pseudo.

export BBFETCH2=True
export BB_ENV_EXTRAWHITE="PSEUDO_BUILD PSEUDO_DISABLED $BB_ENV_EXTRAWHITE"

# For certain operations (i.e. that won't be actually running any tasks)
# we don't need pseudo
NO_BUILD_OPTS="--version -h --help -p --parse-only -s --show-versions -e --environment -g --graphviz"

# Some options are useful to pass through to the initial pseudo build if
# that needs to be run (for debugging)
PASSTHROUGH_OPTS="-D -DD -DDD -DDDD -v"

needpseudo="1"
for opt in $@; do
for key in $NO_BUILD_OPTS; do
    if [ $opt = $key ]
    then
        needpseudo="0"
        break
    fi
done
[ $needpseudo = "0" ] && break
done

# Make sure we're not using python v3.x. This check can't go into
# sanity.bbclass because bitbake's source code doesn't even pass
# parsing stage when used with python v3, so we catch it here so we
# can offer a meaningful error message.
py_v3_check=`/usr/bin/env python --version 2>&1 | grep "Python 3"`
if [ "$py_v3_check" != "" ]; then
	echo "Bitbake is not compatible with python v3"
	echo "Please set up python v2 as your default python interpreter"
	exit 1
fi

# Similarly, we now have code that doesn't parse correctly with older
# versions of Python, and rather than fixing that and being eternally
# vigilant for any other new feature use, just check the version here.
py_v26_check=`python -c 'import sys; print sys.version_info >= (2,6,0)'`
if [ "$py_v26_check" != "True" ]; then
	echo "BitBake requires Python 2.6 or later"
	exit 1
fi

if [ ! -e conf/bblayers.conf ] ; then
    BDPRINT=""
    [ -n "$BUILDDIR" ] && BDPRINT=": $BUILDDIR"
    echo "Unable to find conf/bblayers.conf"
    echo "BitBake must be run from within your build directory$BDPRINT"
    exit 1
elif [ -z "$BUILDDIR" ] ; then
    BUILDDIR="`pwd`"
fi

needtar="1"
needgit="1"
TARVERSION=`tar --version | head -n 1 | cut -d ' ' -f 4`
GITVERSION=`git --version | cut -d ' ' -f 3`
float_test() {
     echo | awk 'END { exit ( !( '"$1"')); }'
}
version_compare() {
    python -c "from distutils.version import LooseVersion; import sys; sys.exit(not (LooseVersion('$1') $2 LooseVersion('$3')))"
}

# Tar version 1.24 and onwards handle overwriting symlinks correctly
# but earlier versions do not; this needs to work properly for sstate
float_test "$TARVERSION > 1.23" && needtar="0"

# Need git >= 1.7.5 for git-remote --mirror=xxx syntax
version_compare $GITVERSION ">=" 1.7.5 && needgit="0"


buildpseudo="1"
if [ $needpseudo = "1" ]; then
    if [ -e "$BUILDDIR/pseudodone" ]; then
        PSEUDOBINDIR=`cat $BUILDDIR/pseudodone`
    else
        PSEUDOBINDIR=`bitbake -e | grep STAGING_BINDIR_NATIVE=\" | cut -d '=' -f2 | cut -d '"' -f2`
    fi
    if [ -e "$PSEUDOBINDIR/pseudo" ]; then
        buildpseudo="0"
    fi

    # Verify that the pseudo recipes are older then the pseudodone file
    PSEUDO_RECIPE="`dirname $0`/../meta/recipes-devtools/pseudo"
    if [ $buildpseudo -eq 0 ] && [ ! -d "$PSEUDO_RECIPE" ]; then
        echo "Unable to verify if pseudo-native is up to date..." >&2
    elif [ $buildpseudo -eq 0 ]; then
	PSEUDO_NEWER=`find $PSEUDO_RECIPE -type f -newer $BUILDDIR/pseudodone`
	if [ -n "$PSEUDO_NEWER" ]; then
            buildpseudo="2"
	fi
    fi
    if [ $buildpseudo = "0" -a ! -e "$BUILDDIR/pseudodone" ] ; then
        echo $PSEUDOBINDIR > $BUILDDIR/pseudodone
    fi
fi

# If tar is already built, we don't want to do it again...
if [ -e "$PSEUDOBINDIR/tar" -a "$needtar" = "1" ]; then
    needtar="0"
fi
# If git is already built, we don't want to do it again...
if [ -e "$PSEUDOBINDIR/git" -a "$needgit" = "1" ]; then
    needgit="0"
fi

if [ $needpseudo = "0" ]; then
    buildpseudo="0"
fi

# If pseudo-native is an argument, assume the user wants to build pseudo-native!
if [ $needpseudo != "0" -a $buildpseudo -eq 0 ]; then
    for opt in $@; do
        if [ "$opt" = "pseudo-native" ]; then
            buildpseudo="3"
            break
        fi
    done
fi

OLDPATH=$PATH
export PATH=`echo $PATH | sed s#[^:]*/scripts:##`
if [ $buildpseudo -gt 0 ]; then
    [ $buildpseudo -eq 1 ] && echo "Pseudo is not present but is required, building this first before the main build"
    [ $buildpseudo -eq 2 ] && echo "Pseudo may be out of date, rebuilding pseudo before the main build"
    [ $buildpseudo -eq 3 ] && echo "Building pseudo-native before main build"
    export PSEUDO_BUILD=1
    TARTARGET="tar-replacement-native"
    if [ $needtar = "0" ]; then
        TARTARGET=""
    fi
    GITTARGET="git-replacement-native"
    if [ $needgit = "0" ]; then
        GITTARGET=""
    fi

    # Pass through debug options
    additionalopts=""
    for opt in $@; do
        for key in $PASSTHROUGH_OPTS; do
            if [ $opt = $key ]
            then
                additionalopts="$additionalopts $opt"
                break
            fi
        done
    done

    if [ $needtar = "1" ]; then
	bitbake $TARTARGET -c populate_sysroot
    fi

    bitbake pseudo-native $GITTARGET $additionalopts -c populate_sysroot
    ret=$?
    if [ "$ret" != "0" ]; then
        exit 1
    fi
    PSEUDOBINDIR=`bitbake -e | grep STAGING_BINDIR_NATIVE=\" | cut -d '=' -f2 | cut -d '"' -f2`
    ret=$?
    if [ "$ret" != "0" ]; then
        exit 1
    fi
    echo $PSEUDOBINDIR > $BUILDDIR/pseudodone
    # This needs to exist in case pseudo has to log somewhere
    mkdir -p $PSEUDOBINDIR/../../var/pseudo
fi
BITBAKE=`which bitbake`
export PATH=$OLDPATH
if [ $needpseudo = "1" ]; then
    export PSEUDO_BUILD=2
    PSEUDO_BINDIR=$PSEUDOBINDIR PSEUDO_LIBDIR=$PSEUDOBINDIR/../lib/pseudo/lib PSEUDO_PREFIX=$PSEUDOBINDIR/../../ PSEUDO_DISABLED=1 $PSEUDOBINDIR/pseudo $BITBAKE $@
else
    export PSEUDO_BUILD=0
    $BITBAKE $@
fi
ret=$?
exit $ret