CFLAGS=-Wall -W -Wextra -Werror -Wno-implicit-fallthrough -std=c99 -Ilib -Isqlite -Ielf -I. -Ilzma/api

ZPMVER:=$(shell git tag --list 'v[0-9]*' | sed -e 's/^v//' | sort -nr | head -1)
ifeq ($(strip $(ZPMVER)),)
	ZPMVER:=0.1
endif

LZMAFLAGS=-Ilzma/api -Ilzma/tuklib -Ilzma/lzma -Ilzma/common -Ilzma/check -Ilzma/lz -Ilzma/rangecoder -Ilzma/simple -Ilzma/delta -DHAVE_CHECK_CRC64 -DHAVE_CHECK_CRC32 -DHAVE_ENCODER_LZMA2 -DHAVE_DECODER_LZMA2 -DHAVE_MF_BT4

LDFLAGS=-L. -ldl

LZMACHECKSRC=lzma/check/check.c lzma/check/crc32_fast.c lzma/check/crc64_fast.c lzma/check/crc32_table.c lzma/check/crc64_table.c
LZMASRC=$(shell ls lzma/lzma/*.c lzma/common/*.c lzma/lz/*.c) $(LZMACHECKSRC) lzma/rangecoder/price_table.c
LZMAOBJ=$(filter-out lzma/common/stream_encoder_mt.o, $(LZMASRC:%.c=%.o))

curdir=$(shell pwd)

ZPKGBIN=zpm-addfile zpm-extract zpm-init zpm-vercmp zpm-stat zpm-hash \
	zpm-findpkg zpm-shell zpm-soneed

SCRIPTS=zpm zpm-install
COMPILED=$(ZPKGBIN)
PROGRAMS=$(SCRIPTS) $(COMPILED)

def: programs
d:
	printf '%s\n' $(LZMAOBJ)
	printf '%s\n' $(PATH)

package: zpm-0.1-1.zpm

ZPM:= ./zpm -P scripts:bin:.

zpm-0.1-1.zpm: programs
	rm -f $@
	./zpm -P scripts:bin:. newpackage -f $@ -v 0.1 zpm
	./zpm -P scripts:bin:. addtopackage -f $@ -P /usr/libexec/zpm -v 0.1 zpm $(PROGRAMS)

tarball: zpm-0.1-1.tar.xz

zpm-0.1-1.tar.xz: programs
	rm -f $@
	tar -cJf $@ --transform='s|^|usr/libexec/zpm/|' \
		--transform='s|^usr/libexec/zpm/zpm$$|usr/bin/zpm|' \
		$(PROGRAMS)

lzma.c: mklzma
	sh mklzma

lzma.o: lzma.c
	gcc -std=c99 -Wall -c -o $@ $<

stest: $(ZPKGBIN)
	PATH=$(curdir)/t:$(curdir):$(PATH) t/$(T).t

test: $(ZPKGBIN)
	PATH=$(curdir)/t:$(curdir):$(PATH) prove -e '' t/*.t

programs: elftype zpm-soname zpm-soneed zpm-addfile zpm-extract zpm-init \
	zpm-vercmp zpm-findpkg

uncompress: uncompress.o 
	$(CC) $(CFLAGS) -o $@ $+ -llzma

elftype: elf/elftype.c
	$(CC) $(CFLAGS) -o $@ $+

zpm-soname: elf/soname.c
	$(CC) -Ielf $(CFLAGS) -o $@ $+

zpm-soneed: elf/needed.c
	$(CC) -Ielf $(CFLAGS) -o $@ $+

zpm-addfile: zpm-addfile.o libzpm.a libelf.a
	$(CC) -Ielf $(CFLAGS) $(LDFLAGS) -o $@ $< -lzpm -lelf

zpm-hash: zpm-hash.o libzpm.a
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -lzpm -lelf

zpm-init: zpm-init.o libzpm.a
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -lzpm -lelf

zpm-extract: zpm-extract.o libzpm.a
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -lzpm -lelf

zpm-findpkg: zpm-findpkg.o libzpm.a
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -lzpm -lelf

newdb.c: db.sql
	echo "char createdb[] = {" > $@
	xxd -i < $< >> $@
	echo ", 0};" >> $@

sqlite/sqlite3.o: sqlite/sqlite3.c sqlite/config.h
	$(CC) -Wall -std=c99 -Ilib -D_HAVE_SQLITE_CONFIG_H=1 -c -o $@ $<

sqlite/shell.o: sqlite/shell.c sqlite/config.h
	$(CC) -Wall -std=c99 -Ilib -D_HAVE_SQLITE_CONFIG_H=1 -c -o $@ $<

$(LZMAOBJ):
	$(CC) $(CFLAGS) $(LZMAFLAGS) -c -o $@ $*.c

lib/zpm.o: newdb.c

zpm-vercmp: zpm-vercmp.o lib/vercmp.o
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+
	
zpm-shell: sqlite/sqlite3.o sqlite/shell.o
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+

libzpm.a: lib/sha256.o lib/db.o lib/compress.o lib/uncompress.o lib/zpm.o \
	sqlite/sqlite3.o \
	lib/vercmp.o \
	lib/sha256.o \
	$(LZMAOBJ)
	ar rcuv $@ $?

libelf.a: elf/libelf.o
	ar rcuv $@ $?

install: $(COMPILED)
	test -d $(DESTDIR)/bin || install -d $(DESTDIR)/bin
	install -D $(PROGRAMS) $(DESTDIR)/bin

clean:
	rm -f *.o sqlite/*.o lib/*.o $(LZMAOBJ) liblzma.a \
		libelf.a libzpm.a zpm-addfile soname \
		*.xz *.zpm