Cut erlang.mk into many small components

 *  The build.config says what gets into the generated erlang.mk.
 *  The default erlang.mk in the repository hasn't changed yet.
 *  Clean targets were separated into "clean" and "distclean".
 *  The "help" target was added to display some help message.

I probably broke a couple things...

1 files changed, 43 insertions, 0 deletions

diff --git a/plugins/relx.mk b/plugins/relx.mk
new file mode 100644
index 0000000..5213318
--- /dev/null
+++ b/plugins/relx.mk
@@ -0,0 +1,43 @@
+# Copyright (c) 2013-2014, Loïc Hoguin <[email protected]>
+# This file is part of erlang.mk and subject to the terms of the ISC License.
+
+.PHONY: distclean-rel
+
+# Configuration.
+
+RELX_CONFIG ?= $(CURDIR)/relx.config
+
+ifneq ($(wildcard $(RELX_CONFIG)),)
+
+RELX ?= $(CURDIR)/relx
+export RELX
+
+RELX_URL ?= https://github.com/erlware/relx/releases/download/v0.6.0/relx
+RELX_OPTS ?=
+RELX_OUTPUT_DIR ?= _rel
+
+ifneq ($(firstword $(subst -o,,$(RELX_OPTS))),)
+	RELX_OUTPUT_DIR = $(firstword $(subst -o,,$(RELX_OPTS)))
+endif
+
+# Core targets.
+
+rel:: distclean-rel $(RELX)
+	@$(RELX) -c $(RELX_CONFIG) $(RELX_OPTS)
+
+distclean:: distclean-rel
+
+# Plugin-specific targets.
+
+define relx_fetch
+	$(call core_http_get,$(RELX),$(RELX_URL))
+	chmod +x $(RELX)
+endef
+
+$(RELX):
+	@$(call relx_fetch)
+
+distclean-rel:
+	$(gen_verbose) rm -rf $(RELX_OUTPUT_DIR)
+
+endif