# -DCOLLISION_CHECK if you believe that SHA1's
# 1461501637330902918203684832716283019655932542976 hashes do not give you
# enough guarantees about no collisions between objects ever hapenning.
#
# -DNSEC if you want git to care about sub-second file mtimes and ctimes.
# Note that you need some new glibc (at least >2.2.4) for this, and it will
# BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely randomly
# break unless your underlying filesystem supports those sub-second times
# (my ext3 doesn't).
CFLAGS=-g -O2 -Wall

CC=gcc
AR=ar

SCRIPTS=git-merge-one-file-script git-prune-script git-pull-script git-tag-script

PROG=   update-cache show-diff init-db write-tree read-tree commit-tree \
	cat-file fsck-cache checkout-cache diff-tree rev-tree show-files \
	check-files ls-tree merge-base merge-cache unpack-file git-export \
	diff-cache convert-cache http-pull rpush rpull rev-list git-mktag \
	diff-tree-helper tar-tree

all: $(PROG)

install: $(PROG) $(SCRIPTS)
	install $(PROG) $(SCRIPTS) $(HOME)/bin/

LIB_OBJS=read-cache.o sha1_file.o usage.o object.o commit.o tree.o blob.o tag.o
LIB_FILE=libgit.a
LIB_H=cache.h object.h blob.h tree.h commit.h tag.h

LIB_H += strbuf.h
LIB_OBJS += strbuf.o

LIB_H += diff.h
LIB_OBJS += diff.o

LIBS = $(LIB_FILE)
LIBS += -lz

ifdef MOZILLA_SHA1
  SHA1_HEADER="mozilla-sha1/sha1.h"
  LIB_OBJS += mozilla-sha1/sha1.o
else
ifdef PPC_SHA1
  SHA1_HEADER="ppc/sha1.h"
  LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
else
  SHA1_HEADER=<openssl/sha.h>
  LIBS += -lssl
endif
endif

CFLAGS += '-DSHA1_HEADER=$(SHA1_HEADER)'

$(LIB_FILE): $(LIB_OBJS)
	$(AR) rcs $@ $(LIB_OBJS)

init-db: init-db.o

%: %.c $(LIB_FILE)
	$(CC) $(CFLAGS) -o $@ $(filter %.c,$^) $(LIBS)

rpush: rsh.c

rpull: rsh.c

http-pull: LIBS += -lcurl

blob.o: $(LIB_H)
cat-file.o: $(LIB_H)
check-files.o: $(LIB_H)
checkout-cache.o: $(LIB_H)
commit.o: $(LIB_H)
commit-tree.o: $(LIB_H)
convert-cache.o: $(LIB_H)
diff.o: $(LIB_H)
diff-cache.o: $(LIB_H)
diff-tree.o: $(LIB_H)
fsck-cache.o: $(LIB_H)
git-export.o: $(LIB_H)
init-db.o: $(LIB_H)
ls-tree.o: $(LIB_H)
merge-base.o: $(LIB_H)
merge-cache.o: $(LIB_H)
object.o: $(LIB_H)
read-cache.o: $(LIB_H)
read-tree.o: $(LIB_H)
rev-tree.o: $(LIB_H)
sha1_file.o: $(LIB_H)
show-diff.o: $(LIB_H)
show-files.o: $(LIB_H)
tree.o: $(LIB_H)
update-cache.o: $(LIB_H)
usage.o: $(LIB_H)
unpack-file.o: $(LIB_H)
write-tree.o: $(LIB_H)
http-pull.o: $(LIB_H)
rpull.o: $(LIB_H)
rpush.o: $(LIB_H)

clean:
	rm -f *.o mozilla-sha1/*.o ppc/*.o $(PROG) $(LIB_FILE)

backup: clean
	cd .. ; tar czvf dircache.tar.gz dir-cache