#!/bin/sh

# Make a release of hdf5.  The command-line switches are:
#
#  -d DIR	The name of the directory where the releas(es) should be
#               placed.  By default, the directory is ./releases
#
#  --nocheck	Ignore errors in MANIFEST file.
#          
# The other command-line options are the names of the programs to use
# for compressing the resulting tar archive (if none are given then
# `tar md5' is assumed):
#
#   tar		-- use tar and don't do any compressing.
#   compress	-- use compress and append `.Z' to the output name.
#   gzip	-- use gzip with `-9' and append `.gz' to the output name.
#   bzip2       -- use bzip2 with `-9' and append `.bz2' to the output name.
#   md5         -- produce a md5 checksum in addition to the archive.
#
# Examples:
#
#   $ release
#   releases/hdf5-1.0.38.tar
#   releases/hdf5-1.0.38.tar.md5
#
#   $ release gzip
#   releases/hdf5-1.0.38.tar.gz
#
#   $ release -d /tmp tar compress gzip bzip2 md5
#   /tmp/hdf5-1.0.38.tar
#   /tmp/hdf5-1.0.38.tar.Z
#   /tmp/hdf5-1.0.38.tar.gz
#   /tmp/hdf5-1.0.38.tar.bz2
#   /tmp/hdf5-1.0.38.tar.md5
#
# Modifications
#   Robb Matzke, 1999-07-16
#   The SunOS 5.6 sed *must* have slashes as delimiters. I changed things like
#   `sed s+/CVS++' to `sed 's/\/CVS//'
#
#   Albert Cheng, 1999-10-26
#   Moved the MANIFEST checking to a separate command file so that
#   it can be invoked individually.

# Function definitions
#
# Print Usage page
USAGE()
{
cat << EOF
Usage: $0 [--nocheck] [-d <dir>] [-h] <methods> ...
   -d DIR	The name of the directory where the releas(es) should be
                placed.  By default, the directory is ./releases

   --nocheck	Ignore errors in MANIFEST file.
         
   --private	Make a private release with today's date in version information.
         
The other command-line options are the names of the programs to use
for compressing the resulting tar archive (if none are given then
"tar md5" is assumed):

    tar		-- use tar and don't do any compressing.
    compress	-- use compress and append ".Z" to the output name.
    gzip	-- use gzip with "-9" and append ".gz" to the output name.
    bzip2       -- use bzip2 with "-9" and append ".bz2" to the output name.
    md5         -- produce a md5 checksum in addition to the archive.

Examples:

    $ release
    releases/hdf5-1.0.38.tar
    releases/hdf5-1.0.38.tar.md5

    $ release gzip
    releases/hdf5-1.0.38.tar.gz

    $ release -d /tmp tar compress gzip bzip2 md5
    /tmp/hdf5-1.0.38.tar
    /tmp/hdf5-1.0.38.tar.Z
    /tmp/hdf5-1.0.38.tar.gz
    /tmp/hdf5-1.0.38.tar.bz2
    /tmp/hdf5-1.0.38.tar.md5

EOF

}

# Defaults
DEST=releases
VERS=`perl bin/h5vers`
VERS_OLD=
test "$VERS" || exit 1
verbose=yes
check=yes
today=`date +%Y%m%d`
pmode='no'

# Restore previous Version information
RESTORE_VERSION()
{
    if [ X-${VERS_OLD} != X- ]; then
	echo restoring version information back to $VERS_OLD
	bin/h5vers -s $VERS_OLD
	VERS_OLD=
    fi
}


# Command-line arguments
while [ -n "$1" ]; do
    arg=$1
    shift
    case "$arg" in
	-d)
	    DEST=$1
	    shift
	    ;;
	--nocheck)
	    check=no
	    ;;
	-h)
	    USAGE
	    exit 0
	    ;;
	--private)
	    pmode=yes
	    ;;
	-*)
	    echo "Unknown switch: $arg" 1>&2
	    USAGE
	    exit 1
	    ;;
	*)
	    methods="$methods $arg"
	    ;;
    esac
done

# Default methods are tar and md5
if [ "X$methods" = "X" ]; then
    methods="tar md5"
fi

# setup restoration in case of abort.
trap RESTORE_VERSION 0

if [ X$pmode = Xyes ]; then
    VERS_OLD=$VERS
    # Set version information to m.n.r-of$today.
    # (h5vers does not correctly handle just m.n.r-$today.)
    VERS=`echo $VERS | sed -e s/-.*//`-of$today
    echo Private release of $VERS
    bin/h5vers -s $VERS
fi

# Store hdf5-$VERS ("hdf5-1.7.51", e.g.) to a variable to avoid typos
HDF5_VERS=hdf5-$VERS

test "$verbose" && echo "Releasing $HDF5_VERS to $DEST" 1>&2
if [ ! -d $DEST ]; then
    echo "   Destination directory $DEST does not exist" 1>&2
    exit 1
fi


# Check the validity of the MANIFEST file.
bin/chkmanifest || fail=yes
if [ "X$fail" = "Xyes" ]; then
    if [ $check = yes ]; then
        exit 1
    else
	echo "Continuing anyway..."
    fi
fi

# Create a manifest that contains only files for distribution.
MANIFEST=/tmp/H5_MANIFEST.$$
grep '^\.' MANIFEST | grep -v _DO_NOT_DISTRIBUTE_ >$MANIFEST

# Prepare the source tree for a release.
test -h ../$HDF5_VERS && rm ../$HDF5_VERS
ln -s `pwd` ../$HDF5_VERS || exit 1
mv Makefile ../Makefile.x 2>/dev/null #might fail
cp -p Makefile.dist Makefile

# Update README.txt and release_docs/RELEASE.txt with release information.
for f in README.txt release_docs/RELEASE.txt; do
    echo "HDF5 version $VERS released on `date`" >$f.x
    tail +2l $f >>$f.x
    mv $f.x $f
    # Make sure new files are of the right access mode
    chmod 644 $f
done

# Create the tar file
test "$verbose" && echo "   Running tar..." 1>&2
( \
    cd ..; \
    tar cf $HDF5_VERS.tar $HDF5_VERS/Makefile \
	`sed 's/^\.\//hdf5-'$VERS'\//' $MANIFEST` || exit 1 \
)

# Compress
for comp in $methods; do
    case $comp in
	tar)
	    cp -p ../$HDF5_VERS.tar $DEST/$HDF5_VERS.tar;;
	compress)
	    test "$verbose" && echo "   Running compress..." 1>&2
	    compress -c <../$HDF5_VERS.tar >$DEST/$HDF5_VERS.tar.Z;;
	gzip)
	    test "$verbose" && echo "   Running gzip..." 1>&2
	    gzip -9 <../$HDF5_VERS.tar >$DEST/$HDF5_VERS.tar.gz;;
	bzip2)
	    test "$verbose" && echo "   Running bzip2..." 1>&2
	    bzip2 -9 <../$HDF5_VERS.tar >$DEST/$HDF5_VERS.tar.bz2;;
	md5)
	    test "$verbose" && echo "   Creating checksum..." 1>&2
	    (  cd .. && md5sum $HDF5_VERS.tar >$HDF5_VERS.tar.md5 )
	    cp -p ../$HDF5_VERS.tar.md5 $DEST/$HDF5_VERS.tar.md5;;
    esac
done

# Copy the RELEASE.txt to the release area.
cp release_docs/RELEASE.txt $DEST/$HDF5_VERS-RELEASE.txt

# Remove temporary things
test -f ../Makefile.x && mv ../Makefile.x Makefile
rm -f $MANIFEST
rm -f ../$HDF5_VERS
rm -f ../$HDF5_VERS.tar
rm -f ../$HDF5_VERS.tar.md5

# Restore OLD version information, then no need for trap.
if [ X$pmode = Xyes ]; then
    RESTORE_VERSION
    trap 0
fi

exit 0