########################################################################

### S E T U P

########################################################################

UNAME       := $(shell uname)

DEPS_DEBUG   = libprofiler

CFLAGS       = -O2 -DSQLITE_THREADSAFE=0 -DSQLITE_TEMP_STORE=2

CFLAGS_DEBUG = -DSQLITE_DEBUG -DDEBUG -DPROG='"volta (debugmode)"' -ggdb -ansi -Wall

LIBS         = 

OBJS         = $(patsubst %.c,%.o,$(wildcard *.c))

# not using pkg-config for sqlite3 anymore

#DEPS        = sqlite3

#CFLAGS      = -O2 -ansi $(shell pkg-config --cflags-only-I --libs-only-L $(DEPS))

#LIBS        = $(shell pkg-config --libs-only-l $(DEPS))

.PHONY : parsegraph profile clean clobber release

# Ubuntu: perftools doesn't currently register a .pc file, and

# sqlite amalgamated requires -ldl

ifeq ($(UNAME), Linux)

volta: LIBS += -ldl

debug: CFLAGS += $(CFLAGS_DEBUG)

debug: LIBS = -lprofiler -ldl

else

debug: CFLAGS += $(CFLAGS_DEBUG)\

	$(shell pkg-config --cflags-only-I --libs-only-L $(DEPS_DEBUG))

debug: LIBS = $(shell pkg-config --libs-only-l $(DEPS_DEBUG))

endif

# Fix parser line number display in debug mode

ifeq (,$(findstring debug,$(MAKECMDGOALS)))

	RAGEL_FLAGS = -LCe -G2

else

	RAGEL_FLAGS = -Ce -G2

endif

# Ensure the parser is included in the objs list

# (patsubst wouldn't have found it if parser.c wasn't pre-generated.)

ifneq (parser.o,$(findstring parser.o,$(OBJS)))

	OBJS += parser.o

endif

########################################################################

### B U I L D

########################################################################

volta: $(OBJS)

	$(CC) $(CFLAGS) -o $@ $(OBJS) $(LIBS)

	strip $@

$(OBJS): volta.h

# don't actually depend on parser.rl, so distributions don't require ragel

parser.c:

	ragel $(RAGEL_FLAGS) -s parser.rl -o $@

debug: $(OBJS)

	$(CC) $(CFLAGS) -o volta $(OBJS) $(LIBS)

########################################################################

### U T I L

########################################################################

parsegraph: parser_graph.xml parser_graph.pdf parser_graph.dot

parser_graph.xml parser_graph.pdf parser_graph.dot: parser.rl

	ragel -Vp parser.rl > parser_graph.dot

	ragel $(RAGEL_FLAGS) -x parser.rl -o parser_graph.xml

	dot -Tpdf parser_graph.dot > parser_graph.pdf

# export CPUPROFILE="cpu.prof" before running volta for cpu profiling

# export CPUPROFILE_FREQUENCY=100 (default)

profile:

	pprof --dot ./volta $(CPUPROFILE) | dot -Tpng > $(CPUPROFILE).png

	pprof --text ./volta $(CPUPROFILE)

tags:

	ctags *.h *.c

clobber: clean

	rm -f parser.c volta.db ChangeLog tags

clean:

	-rm -f volta parser_graph.* *.o *.prof*

# requires BSD tar

release: VERSION = $(shell hg id -t | awk '{ print $$1 }')

release: cleanall parser.c

	hg log --style changelog > ChangeLog

	tar -C .. --exclude misc --exclude .\*  -s '/^volta/volta-$(VERSION)/' -czvf /tmp/volta-$(VERSION).tgz volta

	mv /tmp/volta-$(VERSION).tgz .