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.POSIX:
DATE         = 1970-01-01
VERSION      = 0.1.0
NAME         = wscat
NAME_UC      = $(NAME)
LANGUAGES    = en
## Installation prefix.  Defaults to "/usr".
PREFIX       = /usr
BINDIR       = $(PREFIX)/bin
LIBDIR       = $(PREFIX)/lib
GOLIBDIR     = $(LIBDIR)/go
INCLUDEDIR   = $(PREFIX)/include
SRCDIR       = $(PREFIX)/src/$(NAME)
SHAREDIR     = $(PREFIX)/share
LOCALEDIR    = $(SHAREDIR)/locale
MANDIR       = $(SHAREDIR)/man
EXEC         = ./
## Where to store the installation.  Empty by default.
DESTDIR      =
LDLIBS       =



.SUFFIXES:
.SUFFIXES: .go .a .bin .bin-check



all:
include deps.mk


objects = \
	src/$(NAME).a                  \
	src/main.a                     \
	tests/$(NAME).a                \
	tests/main.a                   \

sources = \
	src/$(NAME).go                 \
	src/version.go                 \
	src/main.go                    \


derived-assets = \
	src/version.go                 \
	$(objects)                     \
	src/main.bin                   \
	tests/main.bin                 \
	$(NAME).bin                    \

side-assets = \
	$(NAME).socket                 \



## Default target.  Builds all artifacts required for testing
## and installation.
all: $(derived-assets)


$(objects): Makefile

src/$(NAME).a: src/$(NAME).go src/version.go
	go tool compile $(GOCFLAGS) -o $@ -p $(*F) -I $(@D) $*.go src/version.go

src/main.a: src/main.go src/$(NAME).a
tests/main.a: tests/main.go tests/$(NAME).a
src/main.a tests/main.a:
	go tool compile $(GOCFLAGS) -o $@ -p $(*F) -I $(@D) $*.go

tests/$(NAME).a: tests/$(NAME).go src/$(NAME).go src/version.go
	go tool compile $(GOCFLAGS) -o $@ -p $(*F) $*.go src/$(*F).go src/version.go

src/main.bin: src/main.a
tests/main.bin: tests/main.a
src/main.bin tests/main.bin:
	go tool link   $(GOLDFLAGS) -o $@ -L $(@D) --extldflags '$(LDLIBS)' $*.a

$(NAME).bin: src/main.bin
	ln -fs $? $@

src/version.go: Makefile
	echo 'package $(NAME); var version = "$(VERSION)"' > $@



tests.bin-check = \
	tests/main.bin-check           \

tests/main.bin-check: tests/main.bin
$(tests.bin-check):
	$(EXEC)$*.bin

check-unit: $(tests.bin-check)


integration-tests = \
	tests/cli-opts.sh              \
	tests/integration.sh           \

.PRECIOUS: $(integration-tests)
$(integration-tests): $(NAME).bin
$(integration-tests): ALWAYS
	sh $@

check-integration: $(integration-tests)


## Run all tests.  Each test suite is isolated, so that a parallel
## build can run tests at the same time.  The required artifacts
## are created if missing.
check: check-unit check-integration



bench: tests/main.bin
	$(EXEC)tests/main.bin -test.bench '.*'



## Remove *all* derived artifacts produced during the build.
## A dedicated test asserts that this is always true.
clean:
	rm -rf $(derived-assets) $(side-assets)


## Installs into $(DESTDIR)$(PREFIX).  Its dependency target
## ensures that all installable artifacts are crafted beforehand.
install: all
	mkdir -p \
		'$(DESTDIR)$(BINDIR)'     \
		'$(DESTDIR)$(GOLIBDIR)'   \
		'$(DESTDIR)$(SRCDIR)'     \

	cp $(NAME).bin       '$(DESTDIR)$(BINDIR)'/$(NAME)
	cp src/$(NAME).a     '$(DESTDIR)$(GOLIBDIR)'
	cp $(sources)        '$(DESTDIR)$(SRCDIR)'

## Uninstalls from $(DESTDIR)$(PREFIX).  This is a perfect mirror
## of the "install" target, and removes *all* that was installed.
## A dedicated test asserts that this is always true.
uninstall:
	rm -rf \
		'$(DESTDIR)$(BINDIR)'/$(NAME)         \
		'$(DESTDIR)$(GOLIBDIR)'/$(NAME).a     \
		'$(DESTDIR)$(SRCDIR)'                 \



## Run it locally.
run: all
	rm -f $(NAME).socket
	./$(NAME).bin wscat.socket retcp.socket


ALWAYS: