#! /bin/sh
#
# NAME
#     make-rel -- make a software release
#
# SYNOPSIS
usage="make-rel SYMBOLIC_TAG MODULE"
#
# DESCRIPTION
#
#     `make-rel' exports MODULE from CVS using SYMBOLIC_TAG and
#     creates a distribution from it.
#
#     `make-rel' can tell the difference between `autoconf' style
#     packages, Perl, and Python packages and create them accordingly.
#
#     For `autoconf' packages, `make-rel' edits the SYMBOLIC_TAG into
#     `configure.in', runs `autoconf', `./configure', and then
#     performs a `make dist'.
#
#     For Perl packages, `make-rel' edits the SYMBOLIC_TAG into the
#     file identified in `Makefile.PL' as the `VERSION_FROM' file,
#     runs `perl Makefile.pl' and `make dist'.
#
#     For Python packages, `make-rel' edits the SYMBOLIC_TAG into
#     `setup.py'.
#
#     SYMBOLIC_TAGs of the form ``r([0-9]+)m([0-9]+)(.*)'' are
#     reformatted to ``\1.\2\3'' to translate between CVS/RCSs
#     requirement against using `.' in a tag name.  For example, a
#     symbolic tag `r0m1b1' is reformatted to `0.1b1'.
#
#     The leading `r' of a SYMBOLIC_TAG is removed.  Underscores (`_')
#     are translated to periods (`.').
#
# $Id: make-rel,v 1.1 2002/08/02 14:54:50 kmacleod Exp $
#

AUTOCONF="/usr/bin/autoconf"
GREP="/usr/bin/grep"
PERL="/usr/bin/perl"
AWK="/usr/bin/awk"
CVS="/usr/bin/cvs"
PWD_CMD="/bin/pwd"
SED="/bin/sed"
TR="/usr/bin/tr"

if [ $# != 2 ]; then
    echo "$usage"
    exit 0
fi

SYMBOLIC_TAG="$1"
MODULE="$2"

set -e
set -x

original_dir="`$PWD_CMD`"

release="`echo \"$SYMBOLIC_TAG\" | $SED -e 's/r\([0-9]\{1,\}\)m\([0-9]\{1,\}\)\(.*\)/\1.\2\3/'`"
release="`echo \"$release\" | $SED -e 's/^r//' | $TR '_' '.'`"

mkdir /tmp/dist-$$

cd /tmp/dist-$$

$CVS export -r $SYMBOLIC_TAG -d dist $MODULE

cd dist

if [ -f configure.in ]; then
    mv configure.in ..

    # edit the SYMBOLIC_TAG into `configure.in', translating to a
    # ``cleaner'' release number
    $SED <../configure.in >configure.in \
      -e 's/^VERSION=.*$/VERSION='"$release"'/'

    echo "$release" >.release

    $AUTOCONF

    ./configure

    make dist

    cd ..
elif [ -f Makefile.PL ]; then
    perl <<'EOF'
use ExtUtils::Manifest;
($missfile, $missentry) = ExtUtils::Manifest::fullcheck;
die "make-rel: release does not check against manifest\n"
    if ($#{$missfile} != -1 || $#{$missentry} != -1);
EOF
    if [ $? != 0 ]; then
	exit 1;
    fi

    VERSION_FROM="`$SED -n -e \"/VERSION_FROM/s/.*'\(.*\)',/\1/p\" Makefile.PL`"

    mv $VERSION_FROM ..
    $SED <../`basename $VERSION_FROM` >$VERSION_FROM \
      -e '/VERSION = /s/0\.00/'"$release"'/'

    for ii in `find . -name \*.pm`; do
	mv $ii ..
	$SED <../`basename $ii` >$ii \
	  -e '/VERSION = /s/0\.00/'"$release"'/'
    done

    if [ -f $MODULE.spec ]; then
	$SED <$MODULE.spec >$MODULE-$release.spec \
	  -e 's/@VERSION@/'"$release"'/g'
	mv MANIFEST ..
	$SED <../MANIFEST >MANIFEST \
	  -e "/^$MODULE.spec$/a\\
$MODULE-$release.spec
"
    fi

    perl Makefile.PL

    make dist

    mv $MODULE-$release.tar.gz ..

    cd ..
elif [ -f setup.py ]; then
    mv setup.py ..
    $SED <../setup.py >setup.py \
      -e '/version = /s/0\.0\.0/'"$release"'/'

    python setup.py sdist

    mv dist/$MODULE-$release.tar.gz ..
    cd ..
else
    echo "Unknown package type"
    cd ..
    rm -rf dist-$$
    exit 1
fi

chmod a-w *.tar.gz

mv *.tar.gz $original_dir

cd ..

rm -rf dist-$$