rebar发布项目记录(二)

有时候需要项目依赖其他的开源项目(比如lager)，这时候我们回到example目录下，编辑rebar.config文件：

%%-*- mode: erlang -*-
{erl_opts, [{parse_transform, lager_transform}]}.
{sub_dirs, ["rel"]}.
{deps, [{lager, ".*", {git, "git://github.com/basho/lager.git", "master"}}]}.

 

修改rel目录下reltools.config，为：

{sys, [
       {lib_dirs, ["http://www.cnblogs.com/", "../deps/"]},
       {rel, "example", "1",
        [
         kernel,
         stdlib,
         sasl,
         example
        ]},
       {rel, "start_clean", "",
        [
         kernel,
         stdlib
        ]},
       {boot_rel, "example"},
       {profile, embedded},
       {excl_sys_filters, ["^bin/.*",
                           "^erts.*/bin/(dialyzer|typer)"]},
       {app, sasl, [{incl_cond, include}]}
      ]}.

{target_dir, "example"}.

{overlay, [
           {mkdir, "log/sasl"},
           {copy, "files/erl", "{{erts_vsn}}/bin/erl"},
           {copy, "files/nodetool", "{{erts_vsn}}/bin/nodetool"},
           {copy, "files/example", "bin/example"},
           {copy, "files/app.config", "etc/app.config"},
           {copy, "files/vm.args", "etc/vm.args"}
           ]}.

注意将lib_dirs添加了对deps目录的查找。

 

修改src/example.app.src为：

{application, example,
 [
  {description, ""},
  {vsn, "1"},
  {registered, []},
  {applications, [
                  kernel,
                  stdlib,
                  lager
                 ]},
  {mod, { example_app, []}},
  {env, []}
 ]}.

将 lager添加进applications中

这时候，我们

[admin@localhost example]$ make clean

[admin@localhost example]$ make rel

 

ok，我们运行:

[admin@localhost example]$ rel/example/bin/example console
Exec: /opt/example/rel/example/erts-5.10.1/bin/erlexec -boot /opt/example/rel/example/releases/1/example -embedded -config /opt/example/rel/example/etc/app.config -args_file /opt/example/rel/example/etc/vm.args -- console
Root: /opt/example/rel/example
Erlang R16B (erts-5.10.1) [source] [64-bit] [smp:2:2] [async-threads:5] [hipe] [kernel-poll:true]

08:00:45.209 [info] Application lager started on node 'example@127.0.0.1'
08:00:45.209 [info] Application example started on node 'example@127.0.0.1'
Eshell V5.10.1  (abort with ^G)
(example@127.0.0.1)1> 

可以看到lager也已经启动了，我们查看一下

./rel/example/lib下，可以看到lager已经出现在lib中了。