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

ZPMVER:=$(shell git describe --tags --match 'v[0-9]*' | sed -e 's/^v//' | sed -e 's/-g.\+//' | sed -e 's/-/./g')

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))

JSWSRC=lib/jsw/jsw_avltree.c \
lib/jsw/jsw_atree.c \
lib/jsw/jsw_hlib.c \
lib/jsw/jsw_rbtree.c

JSWOBJ=$(JSWSRC:%.c=%.o)
LIBZPMSRC=sha256.c db.c compress.c uncompress.c zpm.c zpm_hash.c \
	  foreach_path.c vercmp.o findpkg.c quote.c dbquery.c script_hash.c

LIBZPMOBJ=$(addprefix lib/, $(LIBZPMSRC:%.c=%.o))

curdir=$(shell pwd)

ZPKGBIN=zpm-addfile zpm-extract zpm-init zpm-vercmp zpm-stat zpm-hash \
	zpm-findpkg zpm-shell zpm-soneed zpm-foreach-path zpm-parse \
	zpm-runscript zpm-soname

SCRIPTS=zpm zpm-install zpm-merge zpm-list zpm-preserve zpm-test zpm-log \
	zpm-contents
COMPILED=$(ZPKGBIN)
PROGRAMS=$(SCRIPTS) $(COMPILED)

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

libzpm.a: $(LIBZPMOBJ) sqlite/sqlite3.o \
	$(LZMAOBJ) \
	$(JSWOBJ)
	ar rcuv $@ $?

package: zpm-$(ZPMVER)-1.zpm

lzmaupdate:
	find xz/src/liblzma -type d -name .deps -prune \
		-o -type f -printf '%P\n' \
		| xargs -IZ echo Z Z Z \
		| xargs printf 'test -e lzma/%s && cp xz/src/liblzma/%s lzma/%s\n' \
		| sh

#lzma/lz/lz_decoder.o: lzma/lz/lz_decoder.c
#lzma/lz/lz_encoder.o: lzma/lz/lz_encoder.c

lzma/%.o: lzma/%.c
	$(CC) $(CFLAGS) $(LZMAFLAGS) -c -o $@ $<

lib/liblzma.a: $(LZMAOBJ)
	ar rcuv $@ $?

lib/libjsw.a: $(JSWOBJ)
	ar rcuv $@ $?

ZPM:= ./zpm -P.

zpm-$(ZPMVER)-1.zpm: programs
	rm -f $@
	$(ZPM) newpackage -C zpm-$(ZPMVER)-1
	$(ZPM) add -u root -g root -f $@ -P /sbin zpm-$(ZPMVER)-1 $(sort $(PROGRAMS))

tarball: zpm-$(ZPMVER)-1.tar.xz

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

t/ctap/prove: t/ctap/prove.o
	$(CC) $(CFLAGS) -o $@ $+

test: $(ZPKGBIN) t/ctap/prove
	@PATH=$(curdir)/t:$(curdir):$(PATH) t/ctap/prove t/*.t

programs: $(ZPKGBIN)

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-runscript: zpm-runscript.o libzpm.a
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -lzpm -lelf
	
zpm-foreach-path.o: CFLAGS+=-Wno-unused

zpm-foreach-path: zpm-foreach-path.o libzpm.a sqlite/sqlite3.h
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< -lzpm -lelf

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

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

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

zpm-quote: zpm-quote.o
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $<

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_POSIX_C_SOURCE=200112L -D_HAVE_SQLITE_CONFIG_H=1 -c -o $@ $<

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 $@ $+


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 \
		local.db t/ctap/prove.o