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openfoam/wmake/scripts/wrap-lemon

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#!/bin/sh
#------------------------------------------------------------------------------
# ========= |
# \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
# \\ / O peration |
# \\ / A nd | Copyright (C) 2019 OpenCFD Ltd.
# \\/ M anipulation |
#-------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, licensed under GNU General Public License
# <http://www.gnu.org/licenses/>.
#
# Script
# wrap-lemon
#
# Usage
# wrap-lemon [lemon-options]
#
# Description
# A wrapper to use lemon compiled with OpenFOAM with the appropriate
# parser template.
#
#------------------------------------------------------------------------------
binDir="${WMAKE_BIN:-$WM_PROJECT_DIR/wmake/platforms/$WM_ARCH$WM_COMPILER}"
etcDir="${WM_DIR:-$WM_PROJECT_DIR/wmake}/etc"
# Executable and skeleton locations
lemon="$binDir/lemon"
skel="-T${etcDir}/lempar.c"
usage() {
exec 1>&2
while [ "$#" -ge 1 ]; do echo "$1"; shift; done
cat<<USAGE
Usage: ${0##*/} [options] [lemon args/options]
options:
-header Generate header only, suppressing other output
-h, -help Print the usage
A lemon wrapper using predefined executable and skeleton locations
USAGE
exit 1
}
#------------------------------------------------------------------------------
# Parse arguments and options
#------------------------------------------------------------------------------
# wrap-lemon -header-only
unset optHeader
while [ "$#" -gt 0 ]
do
case "$1" in
(-h | -help*) usage ;;
(-header*) optHeader=true ;;
(*) break ;;
esac
shift
done
#------------------------------------------------------------------------------
# No special handling
if [ -z "$optHeader" ]
then
"$lemon" "$skel" $*
exit $?
fi
# Header only, which means we create a temp directory for the output
tmpDir="lemonWrapper-$$"
rm -rf "$tmpDir" 2>/dev/null
mkdir "$tmpDir" 2>/dev/null
# DO WE WANT THIS?
# trap 'rm -f $tmpDir 2>/dev/null; exit $rc' EXIT TERM INT
"$lemon" "$skel" "-d$tmpDir" $*
rc=$?
for src in "$tmpDir"/*.h
do
dst="${src##*/}"
if [ -f "$src" ]
then
if ! cmp "$src" "$dst" 2>/dev/null
then
mv "$src" "$dst"
echo "Updating $dst" 1>&2
fi
fi
done
rm -rf "$tmpDir" 2>/dev/null
exit "$rc" # Exit with lemon return code
#------------------------------------------------------------------------------