Prior to this change, this project support to be built with rebar3 and
erlang.mk meanwhile but when we want to make distclean, this project
would execute rebar-clean which would get dependencies via rebar3, it
slow down the procedure of distclean.
Add request & response support for CONNECT & CONNACK
Prior to this change, there is no validate and specified process for
Request-Response-Information and Response-Information
Also added basic Request/Response functionality to emqx_client implementation
Before this change, the stats callback provided by emqx_broker_helper
was an anonymous function with module local context.
This commit changes it to a full fun M:F/A style callback for:
1. More robust to hot beam reload
2. Faster/smaller variable to construct
3. Easier test
* Rebar3 and erlang.mk dual support.
There was only erlang.mk support prior to this change.
The main reasons for this dual support are:
* Cover report upload can only be done by rebar3 in travis.ci
* We want to prepare for the future to build emqx releases using rebar3
* We do not want to stop supporting erlang.mk in one single step
* Add depencency version consistency check between erlang.mk and rebar.config
Prior to this change, the template file etc/emqx.conf is used
directly in testing, as a result, mustache style directories
are created e.g. `{{ platform_log_dir }}` which should have been
replaced with a config varialbe e.g. `log`
In this change, Makefile targets are added as `ct` dependency
to download bbmustach, load the template input, replace with
variableds defined in 'vars' file, finally to etc/gen.emqx.conf.
The direct usage of etc/emqx.conf in test code are replaced with
gen.emqx.conf
spring2maz