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# Copyright (c) 2014-2015, Loïc Hoguin <[email protected]>
# This file is part of erlang.mk and subject to the terms of the ISC License.
.PHONY: bootstrap bootstrap-lib bootstrap-rel new list-templates
# Core targets.
help::
$(verbose) printf "%s\n" "" \
"Bootstrap targets:" \
" bootstrap Generate a skeleton of an OTP application" \
" bootstrap-lib Generate a skeleton of an OTP library" \
" bootstrap-rel Generate the files needed to build a release" \
" new-app n=NAME Create a new local OTP application NAME" \
" new-lib n=NAME Create a new local OTP library NAME" \
" new t=TPL n=NAME Generate a module NAME based on the template TPL" \
" new t=T n=N in=APP Generate a module NAME based on the template TPL in APP" \
" list-templates List available templates"
# Bootstrap templates.
define bs_appsrc
{application, $p, [
{description, ""},
{vsn, "0.1.0"},
{id, "git"},
{modules, []},
{registered, []},
{applications, [
kernel,
stdlib
]},
{mod, {$p_app, []}},
{env, []}
]}.
endef
define bs_appsrc_lib
{application, $p, [
{description, ""},
{vsn, "0.1.0"},
{id, "git"},
{modules, []},
{registered, []},
{applications, [
kernel,
stdlib
]}
]}.
endef
ifdef SP
define bs_Makefile
PROJECT = $p
PROJECT_DESCRIPTION = New project
PROJECT_VERSION = 0.0.1
# Whitespace to be used when creating files from templates.
SP = $(SP)
include erlang.mk
endef
else
define bs_Makefile
PROJECT = $p
include erlang.mk
endef
endif
define bs_apps_Makefile
PROJECT = $p
include $(call core_relpath,$(dir $(ERLANG_MK_FILENAME)),$(APPS_DIR)/app)/erlang.mk
endef
define bs_app
-module($p_app).
-behaviour(application).
-export([start/2]).
-export([stop/1]).
start(_Type, _Args) ->
$p_sup:start_link().
stop(_State) ->
ok.
endef
define bs_relx_config
{release, {$p_release, "1"}, [$p]}.
{extended_start_script, true}.
{sys_config, "rel/sys.config"}.
{vm_args, "rel/vm.args"}.
endef
define bs_sys_config
[
].
endef
define bs_vm_args
-name [email protected]
-setcookie $p
-heart
endef
# Normal templates.
define tpl_supervisor
-module($(n)).
-behaviour(supervisor).
-export([start_link/0]).
-export([init/1]).
start_link() ->
supervisor:start_link({local, ?MODULE}, ?MODULE, []).
init([]) ->
Procs = [],
{ok, {{one_for_one, 1, 5}, Procs}}.
endef
define tpl_gen_server
-module($(n)).
-behaviour(gen_server).
%% API.
-export([start_link/0]).
%% gen_server.
-export([init/1]).
-export([handle_call/3]).
-export([handle_cast/2]).
-export([handle_info/2]).
-export([terminate/2]).
-export([code_change/3]).
-record(state, {
}).
%% API.
-spec start_link() -> {ok, pid()}.
start_link() ->
gen_server:start_link(?MODULE, [], []).
%% gen_server.
init([]) ->
{ok, #state{}}.
handle_call(_Request, _From, State) ->
{reply, ignored, State}.
handle_cast(_Msg, State) ->
{noreply, State}.
handle_info(_Info, State) ->
{noreply, State}.
terminate(_Reason, _State) ->
ok.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
endef
define tpl_cowboy_http
-module($(n)).
-behaviour(cowboy_http_handler).
-export([init/3]).
-export([handle/2]).
-export([terminate/3]).
-record(state, {
}).
init(_, Req, _Opts) ->
{ok, Req, #state{}}.
handle(Req, State=#state{}) ->
{ok, Req2} = cowboy_req:reply(200, Req),
{ok, Req2, State}.
terminate(_Reason, _Req, _State) ->
ok.
endef
define tpl_gen_fsm
-module($(n)).
-behaviour(gen_fsm).
%% API.
-export([start_link/0]).
%% gen_fsm.
-export([init/1]).
-export([state_name/2]).
-export([handle_event/3]).
-export([state_name/3]).
-export([handle_sync_event/4]).
-export([handle_info/3]).
-export([terminate/3]).
-export([code_change/4]).
-record(state, {
}).
%% API.
-spec start_link() -> {ok, pid()}.
start_link() ->
gen_fsm:start_link(?MODULE, [], []).
%% gen_fsm.
init([]) ->
{ok, state_name, #state{}}.
state_name(_Event, StateData) ->
{next_state, state_name, StateData}.
handle_event(_Event, StateName, StateData) ->
{next_state, StateName, StateData}.
state_name(_Event, _From, StateData) ->
{reply, ignored, state_name, StateData}.
handle_sync_event(_Event, _From, StateName, StateData) ->
{reply, ignored, StateName, StateData}.
handle_info(_Info, StateName, StateData) ->
{next_state, StateName, StateData}.
terminate(_Reason, _StateName, _StateData) ->
ok.
code_change(_OldVsn, StateName, StateData, _Extra) ->
{ok, StateName, StateData}.
endef
define tpl_cowboy_loop
-module($(n)).
-behaviour(cowboy_loop_handler).
-export([init/3]).
-export([info/3]).
-export([terminate/3]).
-record(state, {
}).
init(_, Req, _Opts) ->
{loop, Req, #state{}, 5000, hibernate}.
info(_Info, Req, State) ->
{loop, Req, State, hibernate}.
terminate(_Reason, _Req, _State) ->
ok.
endef
define tpl_cowboy_rest
-module($(n)).
-export([init/3]).
-export([content_types_provided/2]).
-export([get_html/2]).
init(_, _Req, _Opts) ->
{upgrade, protocol, cowboy_rest}.
content_types_provided(Req, State) ->
{[{{<<"text">>, <<"html">>, '*'}, get_html}], Req, State}.
get_html(Req, State) ->
{<<"<html><body>This is REST!</body></html>">>, Req, State}.
endef
define tpl_cowboy_ws
-module($(n)).
-behaviour(cowboy_websocket_handler).
-export([init/3]).
-export([websocket_init/3]).
-export([websocket_handle/3]).
-export([websocket_info/3]).
-export([websocket_terminate/3]).
-record(state, {
}).
init(_, _, _) ->
{upgrade, protocol, cowboy_websocket}.
websocket_init(_, Req, _Opts) ->
Req2 = cowboy_req:compact(Req),
{ok, Req2, #state{}}.
websocket_handle({text, Data}, Req, State) ->
{reply, {text, Data}, Req, State};
websocket_handle({binary, Data}, Req, State) ->
{reply, {binary, Data}, Req, State};
websocket_handle(_Frame, Req, State) ->
{ok, Req, State}.
websocket_info(_Info, Req, State) ->
{ok, Req, State}.
websocket_terminate(_Reason, _Req, _State) ->
ok.
endef
define tpl_ranch_protocol
-module($(n)).
-behaviour(ranch_protocol).
-export([start_link/4]).
-export([init/4]).
-type opts() :: [].
-export_type([opts/0]).
-record(state, {
socket :: inet:socket(),
transport :: module()
}).
start_link(Ref, Socket, Transport, Opts) ->
Pid = spawn_link(?MODULE, init, [Ref, Socket, Transport, Opts]),
{ok, Pid}.
-spec init(ranch:ref(), inet:socket(), module(), opts()) -> ok.
init(Ref, Socket, Transport, _Opts) ->
ok = ranch:accept_ack(Ref),
loop(#state{socket=Socket, transport=Transport}).
loop(State) ->
loop(State).
endef
# Plugin-specific targets.
define render_template
$(verbose) echo "$${_$(1)}" > $(2)
endef
ifndef WS
ifdef SP
WS = $(subst a,,a $(wordlist 1,$(SP),a a a a a a a a a a a a a a a a a a a a))
else
WS = $(tab)
endif
endif
$(foreach template,$(filter bs_% tpl_%,$(.VARIABLES)), \
$(eval _$(template) = $$(subst $$(tab),$$(WS),$$($(template)))) \
$(eval export _$(template)))
bootstrap:
ifneq ($(wildcard src/),)
$(error Error: src/ directory already exists)
endif
$(eval p := $(PROJECT))
$(eval n := $(PROJECT)_sup)
$(call render_template,bs_Makefile,Makefile)
$(verbose) mkdir src/
ifdef LEGACY
$(call render_template,bs_appsrc,src/$(PROJECT).app.src)
endif
$(call render_template,bs_app,src/$(PROJECT)_app.erl)
$(call render_template,tpl_supervisor,src/$(PROJECT)_sup.erl)
bootstrap-lib:
ifneq ($(wildcard src/),)
$(error Error: src/ directory already exists)
endif
$(eval p := $(PROJECT))
$(call render_template,bs_Makefile,Makefile)
$(verbose) mkdir src/
ifdef LEGACY
$(call render_template,bs_appsrc_lib,src/$(PROJECT).app.src)
endif
bootstrap-rel:
ifneq ($(wildcard relx.config),)
$(error Error: relx.config already exists)
endif
ifneq ($(wildcard rel/),)
$(error Error: rel/ directory already exists)
endif
$(eval p := $(PROJECT))
$(call render_template,bs_relx_config,relx.config)
$(verbose) mkdir rel/
$(call render_template,bs_sys_config,rel/sys.config)
$(call render_template,bs_vm_args,rel/vm.args)
new-app:
ifndef in
$(error Usage: $(MAKE) new-app in=APP)
endif
ifneq ($(wildcard $(APPS_DIR)/$in),)
$(error Error: Application $in already exists)
endif
$(eval p := $(in))
$(eval n := $(in)_sup)
$(verbose) mkdir -p $(APPS_DIR)/$p/src/
$(call render_template,bs_apps_Makefile,$(APPS_DIR)/$p/Makefile)
ifdef LEGACY
$(call render_template,bs_appsrc,$(APPS_DIR)/$p/src/$p.app.src)
endif
$(call render_template,bs_app,$(APPS_DIR)/$p/src/$p_app.erl)
$(call render_template,tpl_supervisor,$(APPS_DIR)/$p/src/$p_sup.erl)
new-lib:
ifndef in
$(error Usage: $(MAKE) new-lib in=APP)
endif
ifneq ($(wildcard $(APPS_DIR)/$in),)
$(error Error: Application $in already exists)
endif
$(eval p := $(in))
$(verbose) mkdir -p $(APPS_DIR)/$p/src/
$(call render_template,bs_apps_Makefile,$(APPS_DIR)/$p/Makefile)
ifdef LEGACY
$(call render_template,bs_appsrc_lib,$(APPS_DIR)/$p/src/$p.app.src)
endif
new:
ifeq ($(wildcard src/),)
$(error Error: src/ directory does not exist)
endif
ifndef t
$(error Usage: $(MAKE) new t=TEMPLATE n=NAME [in=APP])
endif
ifndef tpl_$(t)
$(error Unknown template)
endif
ifndef n
$(error Usage: $(MAKE) new t=TEMPLATE n=NAME [in=APP])
endif
ifdef in
$(verbose) $(MAKE) -C $(APPS_DIR)/$(in)/ new t=$t n=$n in=
else
$(call render_template,tpl_$(t),src/$(n).erl)
endif
list-templates:
$(verbose) echo Available templates: $(sort $(patsubst tpl_%,%,$(filter tpl_%,$(.VARIABLES))))
|