#!/bin/bash
# Script to automate basic Makefile skeleton creation.

# Logical variables
C=0
FORCE=0
HELP=0

# Check options
for i in $@
	do
		if [ $i == "-c" ]; then
			C=1
			continue
		fi
		if [ $i == "-f" ]; then
			FORCE=1
			continue
		fi
		if [ $i == "-h" ]; then
			HELP=1
			break
		fi
	done

if [ $HELP == 1 ]; then
	echo "Usage:"
	echo "	mkmake [options]"
	echo "		-h  : print this message and quit"	
	echo "		-f  : force (enable overwrite)"	
	echo "		-c  : specialize for C compilation"	
	exit
fi

if [ -e ./Makefile ] && [ $FORCE == 0 ]; then
	echo "Makefile found, refusing to overwrite. Force with the -f option."
	exit
fi

# Make make
touch Makefile

# Fill with text
TAB="	"
if [ $C == 1 ]; then
	cat <<- MAKEHEREDOC > ./Makefile
	CC:=g++
	CFLAGS:=-g
	LDLIBS:=
	LDFLAGS:=
	COMP:=\$(CC) \$(CFLAGS) \$(LDFLAGS) \$(LDLIBS)

	OUTPUT:=

	.PHONY: main clean run

	main:
	${TAB}\${COMP} [FILL_IN_HERE] -o \${OUTPUT}

	clean:
	${TAB}rm ./\${OUTPUT}

	run:
	${TAB}./\${OUTPUT}
	MAKEHEREDOC
else
	cat <<- 'MAKEHEREDOC' > ./Makefile
	.PHONY: main clean

	main:

	clean:
	MAKEHEREDOC
fi