#!/bin/sh
#
######################################################
# Build script                                       #
#                                                    #
# See .info for details                              #
######################################################

STD_DEPS="compiletc squashfs-tools git"
BUILD_DEPS="perl5 python3.8-dev"
TCZ_DEPS=""
DEV_TCZ_DEPS=""
FULL_DEPS="$STD_DEPS $BUILD_DEPS"

for deps in $FULL_DEPS; do
        tce-status -i | grep -q ${deps%.*}
        if [ $? -ne 0 ]; then
                tce-load -i $deps >/dev/null 2>&1
                if [ $? -eq 0 ]; then
                echo "Loaded $deps..."
                else
                        echo "Failed to load $deps... exiting"
                        exit 1
                fi
        fi
done

######################################################
# Configure extension creation parameters            #
######################################################
#src https://mirrors.edge.kernel.org/pub/software/utils/i2c-tools/i2c-tools-4.2.tar.xz

SRCNAM=i2c-tools-4.2.tar.xz
WRKDIR=i2c-tools-4.2
EXTNAM=i2c-tools
TMPDIR=/tmp/$EXTNAM

######################################################
# Prepare extension creation                         #
######################################################

# Remove dirs and files left from previous creation

rm -r -f $WRKDIR

rm -r -f $TMPDIR
rm -r -f $TMPDIR-doc
rm -r -f $TMPDIR-dev

# Crete temporary directory

mkdir -p $TMPDIR

######################################################
# Compile extension                                  #
######################################################

# Export variables needed for compilation

case $(uname -m)
	armv*)
		CFLAGS="-march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os"
	;;
	aarch64)
		export CFLAGS="-Os -pipe -march=armv8-a+crc -mtune=cortex-a72"
	;;
esac

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig

# Unpack source in current directory

tar -xf $SRCNAM

#Patch it
cd $WRKDIR

# Configure it

# Compile

touch /tmp/mark

make -j4 BUILD_DYNAMIC_LIB=1 BUILD_STATIC_LIB=0 

# Install in base temp dir

sudo make install BUILD_DYNAMIC_LIB=1 BUILD_STATIC_LIB=0

find /usr/local -newer /tmp/mark -not -type d > /tmp/tmp.lst
tar -T /tmp/tmp.lst -cf /tmp/tmp.tar
tar -xf /tmp/tmp.tar -C $TMPDIR

# Copy License
#if [ -f COPYING ]; then
	cp -f COPYING.* $TMPDIR/
#fi

# Delete compilation work directory
cd ..
rm -r -f $WRKDIR

# Adjust directory access rigths

find $TMPDIR/ -type d | xargs chmod -v 755;

# Strip executables

find $TMPDIR | xargs file | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded

# Move files to doc extension

mkdir -p $TMPDIR-doc/usr/local/share
mv $TMPDIR/usr/local/share/doc $TMPDIR-doc/usr/local/share
mv $TMPDIR/usr/local/share/man $TMPDIR-doc/usr/local/share

# Move files to dev extension

mkdir -p $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/include $TMPDIR-dev/usr/local
mv $TMPDIR/usr/local/lib/*.a $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/lib/*.la $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/lib/*.sh $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/lib/pkgconfig $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/share $TMPDIR-dev/usr/local
#mv $TMPDIR/usr/local/bin $TMPDIR-dev/usr/local


# Move License to main extension

mkdir -p $TMPDIR/usr/local/share/$EXTNAM
mv $TMPDIR/COPYING.* $TMPDIR/usr/local/share/$EXTNAM/

###################################################
# Create base extension in temp dir               #
###################################################

cd $TMPDIR
cd ..
mksquashfs $TMPDIR $EXTNAM.tcz
cd $TMPDIR
find usr -not -type d > $EXTNAM.tcz.list
mv ../$EXTNAM.tcz .

# Create md5 file

md5sum $EXTNAM.tcz > $EXTNAM.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr

###################################################
# Create doc extension in temp dir                #
###################################################

cd $TMPDIR-doc
cd ..
mksquashfs $TMPDIR-doc $EXTNAM-doc.tcz
cd $TMPDIR-doc
find usr -not -type d > $EXTNAM-doc.tcz.list
mv ../$EXTNAM-doc.tcz .

# Create md5 file

md5sum $EXTNAM-doc.tcz > $EXTNAM-doc.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr

###################################################
# Create dev extension in temp dir                #
###################################################

cd $TMPDIR-dev
cd ..
mksquashfs $TMPDIR-dev $EXTNAM-dev.tcz
cd $TMPDIR-dev
find usr -not -type d > $EXTNAM-dev.tcz.list
mv ../$EXTNAM-dev.tcz .

# Create md5 file

md5sum $EXTNAM-dev.tcz > $EXTNAM-dev.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr