#!/bin/sh
# Set initial variables:
CWD=`pwd`
if [ "$TMP" = "" ]; then
  TMP=/tmp
fi
PKG=$TMP/package-xv

if [ ! -d $TMP ]; then
  mkdir -p $TMP # location to build the source
fi
if [ ! -d $PKG ]; then
  mkdir -p $PKG # place for the package to be built
fi

# Explode the package framework:
cd $PKG
explodepkg $CWD/_xv.tar.gz

echo "+=========+"
echo "| xv-3.10 |"
echo "+=========+"
cd $TMP
tar xzvf $CWD/xv-3.10.tar.gz
cd xv-3.10
cat $CWD/xv-3.10a.patch | patch -p0
cat $CWD/xv-3.10a.diff | patch -p0
zcat $CWD/xv-3.10-errlist.diff.gz | patch -p1
cat $CWD/xv-3.10a.USE_GETCWD.patch | patch -p1
mkdir pngdiffs
( cd pngdiffs ; tar xzvf $CWD/xv-3.10a-png-1.2d.tar.gz )
cp -a pngdiffs/xvpng.c .
cp -a pngdiffs/bits/br_png bits/br_png
cat pngdiffs/xcmap.diff | patch -p1
cat pngdiffs/xvpng.diff | patch -p1
cat pngdiffs/xvjpeg.diff | patch -p1
cat pngdiffs/xvtiff.diff | patch -p1
zcat $CWD/xvpng-1.2d-fix3.txt.gz | patch -p0
zcat $CWD/xv-3.10a-finalcleanup.diff.gz | patch -p0
make -f Makefile.std
strip bggen vdcomp xcmap xv xvpictoppm
cat bggen > $PKG/usr/X11R6/bin/bggen
cat vdcomp > $PKG/usr/X11R6/bin/vdcomp
cat xcmap > $PKG/usr/X11R6/bin/xcmap
cat xv > $PKG/usr/X11R6/bin/xv
cat xvpictoppm > $PKG/usr/X11R6/bin/xvpictoppm
for page in docs/xv.man docs/bggen.man docs/xcmap.man docs/xvp2p.man ; do
  cat $page | gzip -9c > $PKG/usr/X11R6/man/man1/`basename $page .man`.1.gz
done

# Build the package:
cd $PKG
tar czvf $TMP/xv.tgz .

# Warn of zero-length files:
for file in `find . -type f -print` ; do
 if [ "`filesize $file`" = "0" ]; then
  echo "WARNING: zero length file $file"
 fi
 if [ "`filesize $file`" = "20" ]; then
  echo "WARNING: possible empty gzipped file $file"
 fi
done

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP/xv-3.10
  rm -rf $PKG
fi