# Relx plugin.
#
# Sleeps when interacting with relx script are necessary after start and upgrade
# as both of those interactions are not synchronized.

RELX_CASES = rel bare-rel relup start-stop tar vsn
RELX_TARGETS = $(addprefix relx-,$(RELX_CASES))

.PHONY: relx $(RELX_TARGETS)

ifeq ($(PLATFORM),msys2)
RELX_REL_EXT = .cmd
else
RELX_REL_EXT =
endif

relx: $(RELX_TARGETS)

relx-rel: build clean

	$i "Bootstrap a new release named $(APP)"
	$t mkdir $(APP)/
	$t cp ../erlang.mk $(APP)/
	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap bootstrap-rel $v

	$i "Build the release"
	$t $(MAKE) -C $(APP) $v

	$i "Check that relx was downloaded"
	$t test -f $(APP)/.erlang.mk/relx

	$i "Check that the release was built"
	$t test -d $(APP)/_rel
	$t test -d $(APP)/_rel/$(APP)_release
	$t test -d $(APP)/_rel/$(APP)_release/bin
	$t test -d $(APP)/_rel/$(APP)_release/lib
	$t test -d $(APP)/_rel/$(APP)_release/releases
	$t test -d $(APP)/_rel/$(APP)_release/releases/1

	$i "Clean the application"
	$t $(MAKE) -C $(APP) clean $v

	$i "Check that the release still exists"
	$t test -d $(APP)/_rel
	$t test -d $(APP)/_rel/$(APP)_release
	$t test -d $(APP)/_rel/$(APP)_release/bin
	$t test -d $(APP)/_rel/$(APP)_release/lib
	$t test -d $(APP)/_rel/$(APP)_release/releases
	$t test -d $(APP)/_rel/$(APP)_release/releases/1

	$i "Distclean the application"
	$t $(MAKE) -C $(APP) distclean $v

	$i "Check that the output directory was removed entirely"
	$t test ! -d $(APP)/_rel/

relx-bare-rel: build clean

	$i "Bootstrap a new release named $(APP)"
	$t mkdir $(APP)/
	$t cp ../erlang.mk $(APP)/
	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap bootstrap-rel $v

	$i "Build the release"
	$t $(MAKE) -C $(APP) rel $v

	$i "Check that relx was downloaded"
	$t test -f $(APP)/.erlang.mk/relx

	$i "Check that the release was built"
	$t test -d $(APP)/_rel
	$t test -d $(APP)/_rel/$(APP)_release
	$t test -d $(APP)/_rel/$(APP)_release/bin
	$t test -d $(APP)/_rel/$(APP)_release/lib
	$t test -d $(APP)/_rel/$(APP)_release/releases
	$t test -d $(APP)/_rel/$(APP)_release/releases/1

relx-relup: build clean

	$i "Bootstrap a new release named $(APP)"
	$t mkdir $(APP)/
	$t cp ../erlang.mk $(APP)/
	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap bootstrap-rel $v

	$i "Set the initial application version"
ifeq ($(LEGACY),1)
	$t sed -i.bak s/"{vsn, \"0.1.0\"}"/"{vsn, \"1\"}"/ $(APP)/src/$(APP).app.src
else
	$t echo "PROJECT_VERSION = 1" >> $(APP)/Makefile
endif

	$i "Generate a test module"
	$t printf "%s\n"\
		"-module(test)." \
		"-export([test/0])." \
		"test() -> old." > $(APP)/src/test.erl

	$i "Build the initial release as a tarball"
	$t $(MAKE) -C $(APP) $v

	$i "Update the test module"
	$t sed -i.bak s/"test() -> old."/"test() -> new."/ $(APP)/src/test.erl

	$i "Bump the application version"
ifeq ($(LEGACY),1)
	$t sed -i.bak s/"{vsn, \"1\"}"/"{vsn, \"2\"}"/ $(APP)/src/$(APP).app.src
else
	$t sed -i.bak s/"PROJECT_VERSION = 1"/"PROJECT_VERSION = 2"/ $(APP)/Makefile
endif

	$i "Generate a .appup for the application"
	$t printf "%s\n" \
		"{\"2\","\
		"  [{\"1\", [{load_module, test}]}],"\
		"  [{\"1\", [{load_module, test}]}]"\
		"}." > $(APP)/ebin/$(APP).appup

	$i "Bump the release version"
	$t sed -i.bak s/"1"/"2"/ $(APP)/relx.config

	$i "Build a new release with a relup as a tarball"
	$t $(MAKE) -C $(APP) relup $v

	$i "Test that both releases are available"
	$t test -f $(APP)/_rel/$(APP)_release/$(APP)_release-1.tar.gz
	$t test -f $(APP)/_rel/$(APP)_release/$(APP)_release-2.tar.gz

	$i "Unpack initial release"
	$t mkdir $(APP)/tmp
	$t tar -xzf $(APP)/_rel/$(APP)_release/$(APP)_release-1.tar.gz -C $(APP)/tmp

	$i "Start initial release and confirm it runs the old code"
ifeq ($(PLATFORM),msys2)
	$t $(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) install $v
endif
	$t $(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) start $v
	$t sleep 1
	$t test `$(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) rpcterms test test` = old

	$i "Check that it's 1 available version"
	$t test `$(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) versions | wc -l` = "2"

	$i "Copy the relup tarball to the release directory"
	$t mkdir $(APP)/tmp/releases/2
	$t cp $(APP)/_rel/$(APP)_release/$(APP)_release-2.tar.gz $(APP)/tmp/releases/2/$(APP)_release.tar.gz
	$t test -f $(APP)/tmp/releases/2/$(APP)_release.tar.gz

	$i "Upgrade the release and confirm it runs the new code"
	$t $(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) upgrade "2"
	$t sleep 1
	$t test `$(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) rpcterms test test` = new

	$i "Check that it's 2 available versions"
	$t test `$(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) versions | wc -l` = "3"

	$i "Downgrade the release and confirm it runs the old code"
	$t $(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) downgrade "1"
	$t sleep 1
	$t test `$(APP)/tmp/bin/$(APP)_release$(RELX_REL_EXT) rpcterms test test` = old

	$i "Stop the release"
	$t $(APP)/_rel/$(APP)_release/bin/$(APP)_release$(RELX_REL_EXT) stop $v
ifeq ($(PLATFORM),msys2)
	$t $(APP)/_rel/$(APP)_release/bin/$(APP)_release$(RELX_REL_EXT) uninstall $v
endif

relx-start-stop: build clean

	$i "Bootstrap a new release named $(APP)"
	$t mkdir $(APP)/
	$t cp ../erlang.mk $(APP)/
	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap bootstrap-rel $v

	$i "Build the release"
	$t $(MAKE) -C $(APP) $v

	$i "Start the release"
ifeq ($(PLATFORM),msys2)
	$t $(APP)/_rel/$(APP)_release/bin/$(APP)_release.cmd install $v
endif
	$t $(APP)/_rel/$(APP)_release/bin/$(APP)_release$(RELX_REL_EXT) start $v
	$t sleep 1

	$i "Ping the release"
	$t $(APP)/_rel/$(APP)_release/bin/$(APP)_release$(RELX_REL_EXT) ping $v

	$i "Stop the release"
	$t $(APP)/_rel/$(APP)_release/bin/$(APP)_release$(RELX_REL_EXT) stop $v
ifeq ($(PLATFORM),msys2)
	$t $(APP)/_rel/$(APP)_release/bin/$(APP)_release.cmd uninstall $v
endif

	$i "Check that further pings get no replies"
	$t ! $(APP)/_rel/$(APP)_release/bin/$(APP)_release$(RELX_REL_EXT) ping $v

relx-tar: build clean

	$i "Bootstrap a new release named $(APP)"
	$t mkdir $(APP)/
	$t cp ../erlang.mk $(APP)/
	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap bootstrap-rel $v

	$i "Build the release without a tarball"
	$t $(MAKE) -C $(APP) RELX_TAR=0 $v

	$i "Check that tarball doesn't exist"
	$t test ! -e $(APP)/_rel/$(APP)_release/$(APP)_release-1.tar.gz

	$i "Build the release as a tarball"
	$t $(MAKE) -C $(APP) $v

	$i "Check that tarball exists"
	$t test -f $(APP)/_rel/$(APP)_release/$(APP)_release-1.tar.gz

relx-vsn: build clean

	$i "Bootstrap a new release named $(APP)"
	$t mkdir $(APP)/
	$t cp ../erlang.mk $(APP)/
	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap bootstrap-rel $v

	$i "Replace the vsn"
	$t sed -i.bak s/"\"1\""/"{cmd, \"echo -n 2\"}"/ $(APP)/relx.config

	$i "Build the release"
	$t $(MAKE) -C $(APP) $v

	$i "Check that the correct release exists"
	$t ! test -d $(APP)/_rel/$(APP)_release/releases/1
	$t test -d $(APP)/_rel/$(APP)_release/releases/2