dev/bash/smake/smake.sh

#!/bin/bash

REP_CC=cc
REP_CXX=c++
REP_INCLUDE='-I$(HOME)/projects/include -I/usr/include'
REP_LIBRARIES=
REP_TARGET=target

SMAKE_DIR=~/dev/bash/smake/etc/smake
ENV_FILE=$SMAKE_DIR/env.smk
BUILD_FILE=$SMAKE_DIR/build.smk
RULES_FILE=$SMAKE_DIR/rules.smk

# Debug
DEBUG=0

# Parameters processing
TEMP=`getopt -o c:x:i:l:t: --long cc:,cxx:,include:,libraries:,target: -- "$@"`
eval set -- "$TEMP"

while true ; do
	case "$1" in
		-c|--cc) REP_CC=$2 ; echo "CC=$REP_CC" ; shift 2 ;;
		-x|--cxx) REP_CXX=$2 ; echo "CXX=$REP_CXX" ; shift 2 ;;
		-i|--include) REP_INCLUDE=$2 ; echo "INCLUDE=$REP_INCLUDE"; shift 2 ;;
		-l|--libraries) REP_LIBRARIES=$2 ; echo "LIBRARIES=$REP_LIBRARIES"; shift 2 ;;
		-t|--target) REP_TARGET=$2 ; echo "TARGET=$REP_TARGET"; shift 2 ;;
		--) shift ; break ;;
		*) echo "Internal error!" ; exit 1 ;;
	esac
done

# ======= Environment =======
sed "s~REP_CC~$REP_CC~ ; s~REP_CXX~$REP_CXX~ ; \
     s~REP_LIBRARIES~$REP_LIBRARIES~ ; s~REP_TARGET~$REP_TARGET~" $ENV_FILE > Makefile

# INCLUDE0, INCLUDE1, INCLUDE2, ...
REP_INCLUDE=`echo $REP_INCLUDE | sed "s~-I~~g"`

i=1
for d in $REP_INCLUDE; do
	echo "INCLUDE$i=$d" >> Makefile
	i=$((i+1))
done

echo -n "INCLUDE=" >> Makefile

i=1
for d in $REP_INCLUDE; do
	if [ $i != 1 ]; then
		echo -n ' ' >> Makefile
	fi
	echo -n '-I$(INCLUDE'$i')' >> Makefile
	i=$((i+1))
done
echo >> Makefile

echo >> Makefile

# ======= Build =======
cat $BUILD_FILE >> Makefile

echo >> Makefile

# ======= Rules =======
cat $RULES_FILE >> Makefile

REP_INCLUDE=`echo $REP_INCLUDE | sed "s~-I~~g ; s~\\$(HOME)~${HOME}~"`

# --- Target deplist ---

target_dep_lst=`remove_c_comments.pl $REP_TARGET.c | grep -P '^[\t ]*#include[\t ]*"' | sed 's~[^"]*"\([^"]*\)".*~\1~' | sort -u`
files_not_found=

while [[ "$target_dep_lst" != "$old_target_dep_lst" ]]; do
	old_target_dep_lst=$target_dep_lst
	for f in $target_dep_lst; do
		F=""
		for d in . $REP_INCLUDE; do
			if [ -f "$d/$f" ]; then
				F="$d/$f"
				C=`echo $f | sed 's~\.h$~\.c~'`
				if [ -f "$d/$C" ]; then
					target_dep_lst="$target_dep_lst $C"	
				fi
				break
			fi
		done
		if [ "$F" == "" ]; then
			files_not_found="$files_not_found\n$f"
			continue
		fi
#echo F=$F
		target_dep_lst="$target_dep_lst "`remove_c_comments.pl $F | grep -P '^[\t ]*#include[\t ]*"' | sed 's~[^"]*"\([^"]*\)".*~\1~' | sort -u`
		target_dep_lst=`echo $target_dep_lst | sed 's~ ~\n~g' | sort -u`
	done
#echo "target_dep_lst=$target_dep_lst"
#echo "---------------"
done

if [ $DEBUG == 1 ]; then
	echo -e "target_dep_lst:\n`echo $target_dep_lst | sed -e 's~ ~\n~g' | sed 's~\(^..\)~  \1~g'`"
fi

files_not_found=`echo -e "$files_not_found" | sort -u`
if [ "$files_not_found" != "" ]; then
	echo WARNING: Include files not found: $files_not_found
fi