#!/bin/sh
# This file is part of NIT ( http://www.nitlanguage.org ).
#
# Copyright 2008 Jean Privat <jean@pryen.org>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# NAME
#	mkcsrc - generate a new c_src directory from a current nitc bootstrap
# SYNOPSIS
#	./mkcsrc [number]
# DESCRIPTION
#	transform a bootstrap result (generated by the nc tool) into a new
#	c_src in the current directory (previous one will be errased).
#	One c_src generated, you can replace the old one in the root.
#	Before commiting, do not forget to:
#	 * verify any regression
#	 * add/remove files in c_src
# OPTION
#	number is the bootstrap level to use.  It corresponds to the nc
#	level.  By default, the lastest generated nitc is used.

# prefix
p=$1

if [ "x$p" = "x" ]; then
	p=`ls .nit_compile*/nitc._build.sh -t | head -1 | sed 's!\.nit_compile\(.*\)/nitc\._build\.sh!\1!'`
	if [ "x$p" = "x" ]; then
		echo "No generated nitc"
		exit 1
	fi
	echo "Lastest generated nitc is bootstrap level $p"
fi

rm -r c_src 2> /dev/null
mkdir c_src

# Copy sources
sed -n '/^  /{s!\\$!!;p}' .nit_compile${p}/nitc._build.sh | while read -r file; do
	[ -f $file ] || continue
	cp $file c_src
	[ -r ${file%.c}.h ] && cp ${file%.c}.h c_src
	# Copy included files
	sed -ne 's|^#include "\(.*\)".*|\1|p' $file | while read -r subfile; do
		cp "$(dirname "$file")/$subfile" c_src
	done
done
sed -i -e 's|include ".*/|include "|' c_src/*[ch] # Cleanup includes

# Prepare the build script
cp .nit_compile${p}/nitc._build.sh c_src/nitc._build.sh
chmod +x c_src/nitc._build.sh
sed -i -e "s|^  [^$].*/|  |g" c_src/nitc._build.sh # Cleanup file paths
sed -i -e "s|.nit_compile${p}|.|g" c_src/nitc._build.sh # Cleanup remaining work dirs
sed -i -e "s|nitc_${p}|nitc|" c_src/nitc._build.sh # Cleanup exec name
sed -i -e 's/^CLIBDIR=.*/CLIBDIR="clib"/' c_src/nitc._build.sh # Cleanup CLIB PATH

# Copy remaining files
cp -r ../c_src/Makefile ../c_src/README ../clib c_src