Add ci plugin

The ci plugin allows testing your Erlang project across
any number of Erlang versions.

1 files changed, 65 insertions, 0 deletions

diff --git a/plugins/ci.mk b/plugins/ci.mk
new file mode 100644
index 0000000..e5df48e
--- /dev/null
+++ b/plugins/ci.mk
@@ -0,0 +1,65 @@
+# Copyright (c) 2015, Loïc Hoguin <[email protected]>
+# This file is part of erlang.mk and subject to the terms of the ISC License.
+
+.PHONY: ci ci-setup distclean-kerl
+
+KERL ?= $(CURDIR)/kerl
+export KERL
+
+KERL_URL ?= https://raw.githubusercontent.com/yrashk/kerl/master/kerl
+
+OTP_GIT ?= https://github.com/erlang/otp
+
+CI_INSTALL_DIR ?= $(HOME)/erlang
+CI_OTP ?=
+
+ifeq ($(strip $(CI_OTP)),)
+ci::
+else
+ci:: $(KERL) $(addprefix ci-,$(CI_OTP))
+
+ci-setup::
+
+ci_verbose_0 = @echo " CI    " $(1);
+ci_verbose = $(ci_verbose_$(V))
+
+define ci_target
+ci-$(1): $(CI_INSTALL_DIR)/$(1)
+	-$(ci_verbose) \
+		PATH="$(CI_INSTALL_DIR)/$(1)/bin:$(PATH)" \
+		CI_OTP_RELEASE="$(1)" \
+		CT_OPTS="-label $(1)" \
+		$(MAKE) clean ci-setup tests
+endef
+
+$(foreach otp,$(CI_OTP),$(eval $(call ci_target,$(otp))))
+
+define ci_otp_target
+$(CI_INSTALL_DIR)/$(1):
+	$(KERL) build git $(OTP_GIT) $(1) $(1)
+	$(KERL) install $(1) $(CI_INSTALL_DIR)/$(1)
+endef
+
+$(foreach otp,$(CI_OTP),$(eval $(call ci_otp_target,$(otp))))
+
+define kerl_fetch
+	$(call core_http_get,$(KERL),$(KERL_URL))
+	chmod +x $(KERL)
+endef
+
+$(KERL):
+	@$(call kerl_fetch)
+
+help::
+	@printf "%s\n" "" \
+		"Continuous Integration targets:" \
+		"  ci          Run 'make tests' on all configured Erlang versions." \
+		"" \
+		"The CI_OTP variable must be defined with the Erlang versions" \
+		"that must be tested. For example: CI_OTP = OTP-17.3.4 OTP-17.5.3"
+
+distclean:: distclean-kerl
+
+distclean-kerl:
+	$(gen_verbose) rm -rf $(KERL)
+endif