plugins.mk

# Copyright (c) 2015, Erlang Solutions Ltd.
# This file is part of erlang.mk and subject to the terms of the ISC License.

.PHONY: elvis distclean-elvis

# Configuration.
ELVIS_VERSION ?= 1.1.0
ELVIS_CONFIG ?= $(CURDIR)/elvis.config

ELVIS ?= $(CURDIR)/elvis
export ELVIS

ELVIS_URL ?= https://github.com/inaka/elvis/archive/refs/tags/$(ELVIS_VERSION).tar.gz
ELVIS_OPTS ?=
ELVIS_BUILD_DIR ?= $(CURDIR)/_build
ELVIS_CODE_ARCHIVE = $(ELVIS_VERSION).tar.gz

ELVIS_REBAR3_URL ?= https://s3.amazonaws.com/rebar3/rebar3
ELVIS_REBAR3 ?= rebar3

# Core targets.

help::
	$(verbose) printf "%s\n" "" \
		"Elvis targets:" \
		"  elvis       Run Elvis using the local elvis.config or download the default otherwise"

distclean:: distclean-elvis

# Plugin-specific targets.

$(ELVIS):
	$(verbose) mkdir -p $(ELVIS_BUILD_DIR)
ifeq ($(shell command -v $(ELVIS_REBAR3)),)
	$(verbose) echo "Downloading Rebar3 from: "$(ELVIS_REBAR3_URL)
	$(verbose) $(call core_http_get,$(ELVIS_BUILD_DIR)/rebar3,$(ELVIS_REBAR3_URL))
	$(verbose) chmod +x $(ELVIS_BUILD_DIR)/rebar3
	$(eval ELVIS_REBAR3 := $(ELVIS_BUILD_DIR)/rebar3)
else
	$(verbose) echo "Using Rebar3: "$(ELVIS_REBAR3)
endif
	$(verbose) echo "Downloading Elvis from: "$(ELVIS_URL)
	$(verbose) $(call core_http_get,$(ELVIS_BUILD_DIR)/$(ELVIS_CODE_ARCHIVE),$(ELVIS_URL))
	$(verbose) cd $(ELVIS_BUILD_DIR) && \
		tar -xzf $(ELVIS_CODE_ARCHIVE) && \
		cd elvis-$(ELVIS_VERSION) && \
		$(ELVIS_REBAR3) escriptize
	$(gen_verbose) cp $(ELVIS_BUILD_DIR)/elvis-$(ELVIS_VERSION)/_build/default/bin/elvis $(ELVIS)
	$(gen_verbose) cp --no-clobber $(ELVIS_BUILD_DIR)/elvis-$(ELVIS_VERSION)/elvis.config $(ELVIS_CONFIG)
	$(verbose) chmod +x $(ELVIS)
	$(verbose) rm -rf $(ELVIS_BUILD_DIR)/elvis-$(ELVIS_VERSION)
	$(verbose) rm $(ELVIS_BUILD_DIR)/$(ELVIS_CODE_ARCHIVE)
	$(verbose) rm --force $(ELVIS_BUILD_DIR)/rebar3
	$(verbose) rmdir --ignore-fail-on-non-empty $(ELVIS_BUILD_DIR)

elvis: $(ELVIS)
	$(verbose) $(ELVIS) rock -c $(ELVIS_CONFIG) $(ELVIS_OPTS)

distclean-elvis:
	$(gen_verbose) rm -rf $(ELVIS)