#!/bin/sh
#
# $Id$
#
# The author disclaims all copyrights and releases this script into the
# public domain.
#
# Script to export from CVS a named module and drop it into a directory.
# This directory will be created if it does not exist, and rsync used to
# merge the export into the directory, as 'cvs export' does not export
# to a populated directory.
# Expect to be moving large amounts of data, which could be too large
# for /tmp. Set TMPDIR or use -T option to set different directory.
if [ -z $TMPDIR ]; then
TMPDIR=/var/tmp
fi
REVISION="-D NOW"
STAGING_AREA=
OPT=
while getopts d:r:T: OPT; do
case $OPT in
d)
CVSROOT=$OPTARG
;;
r)
# for CVS option to 'cvs export'
REVISION="-r $OPTARG"
;;
T)
TMPDIR=$OPTARG
;;
esac
done
shift $(($OPTIND - 1))
if [ -z "$1" ]; then
echo "usage: `basename $0` [-d cvsroot] [-r tag] [-T tmpdir] module target-dir" >&2
exit 1
fi
MODULE=$1
TARGET=$2
cleanup () {
if [ ! -z "$STAGING_AREA" ]; then
if [ -d "$STAGING_AREA" ]; then
rm -rf "$STAGING_AREA"
fi
fi
}
trap "cleanup" 0 1 2 13 15
STAGING_AREA=`mktemp -d $TMPDIR/stage.XXXXXXXX` || exit $?
# KLUGE append / to directory for rsync copy
STAGING_AREA="$STAGING_AREA/"
cvs -Q -d "$CVSROOT" export $REVISION -d "$STAGING_AREA" "$MODULE" || exit $?
if [ ! -e "$TARGET" ]; then
echo "notice: creating target directory: dir=$TARGET" >&2
mkdir -p -- "$TARGET"
fi
if [ ! -d "$TARGET" ]; then
echo "error: target directory not a directory: dir=$TARGET" >&2
exit 1
fi
# TODO watch output and change exit value if target was or was not
# updated? (If updated, then trigger other actions.)
rsync -crut --delete --timeout=999 "$STAGING_AREA" "$TARGET" || exit $?
