.POSIX:
.SUFFIXES:
.SUFFIXES: .1.scd .1

_git_version=$(shell git describe --tags --dirty 2>/dev/null)
ifeq ($(strip $(_git_version)),)
VERSION=0.1.0
else
VERSION=$(_git_version)
endif

PREFIX?=/usr/local
BINDIR?=$(PREFIX)/bin
MANDIR?=$(PREFIX)/share/man

GO?=go
GOFLAGS?=
GOSRC!=find . -name '*.go'
GOSRC+=go.mod go.sum

all: kiln docs

docs: docs/kiln.1

.1.scd.1:
	scdoc < $< > $@

kiln: $(GOSRC)
	$(GO) build $(GOFLAGS) \
		-ldflags "-X main.Version=$(VERSION)" \
		-o $@

clean:
	$(RM) kiln
	$(RM) $(DOCS)

install: all
	mkdir -p $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man1
	install -m755 kiln $(DESTDIR)$(BINDIR)/kiln
	install -m755 docs/kiln.1 $(MANDIR)/man1/kiln.1

uninstall:
	$(RM) $(DESTDIR)$(BINDIR)/kiln
	$(RM) $(DESTDIR)$(MANDIR)/man1/kiln.1

.PHONY: all docs clean install uninstall