使用rebar释放时如何处理deps？答案

【问题标题】：How to handle deps while using rebar to release?使用rebar释放时如何处理deps？
【发布时间】：2013-07-03 04:39:01
【问题描述】：

我使用rebar generate 来处理释放，但是当我启动应用程序，找不到我使用的deps。`

我可以使用 erl -pa ./ebin ./deps/*/ebin -s myapp 手动启动应用程序。

我想知道如何配置 rebar.config 和 reltool.config 来处理依赖？谢谢。

【问题讨论】：

标签： erlang rebar

【解决方案1】：

为了使 reltool 生成包含依赖项的版本，您需要将它们添加到 reltool.config。我有一个名为drill_instructor 的应用程序，它具有以下reltool.config。 {app, stdlib, [{incl_cond, include}]}, 之类的行告诉 reltool 将该应用程序包含在发布中。我还在the lib_dirs 设置中添加了部门。

{sys, [
   {lib_dirs, ["../deps"]},
   {erts, [{mod_cond, derived}, {app_file, strip}]},
   {app_file, strip},
   {rel, "drill_instructor", "1",
    [
     kernel,
     stdlib,
     sasl,
     crypto,
     ranch,
     jiffy,
     cowboy,
     jiffy,
     drill_instructor
    ]},
   {rel, "start_clean", "",
    [
     kernel,
     stdlib
    ]},
   {boot_rel, "drill_instructor"},
   {profile, embedded},
   {incl_cond, exclude},
   {excl_archive_filters, [".*"]}, %% Do not archive built libs
   {excl_sys_filters, ["^bin/.*", "^erts.*/bin/(dialyzer|typer)",
                       "^erts.*/(doc|info|include|lib|man|src)"]},
   {excl_app_filters, ["\.gitignore"]},
   {app, sasl,   [{incl_cond, include}]},
   {app, crypto,   [{incl_cond, include}]},
   {app, stdlib, [{incl_cond, include}]},
   {app, kernel, [{incl_cond, include}]},
   {app, cowboy, [{incl_cond, include}]},
   {app, ranch, [{incl_cond, include}]},
   {app, jiffy, [{incl_cond, include}]},
   {app, drill_armory, [{incl_cond, include}]},
   {app, drill_instructor, [{incl_cond, include}, {lib_dir, ".."}]}
  ]}.

{target_dir, "drill_instructor"}.

{overlay, [
       {mkdir, "log/sasl"},
       {copy, "files/erl", "\{\{erts_vsn\}\}/bin/erl"},
       {copy, "files/nodetool", "\{\{erts_vsn\}\}/bin/nodetool"},
       {copy, "files/drill_instructor", "bin/drill_instructor"},
       {copy, "files/drill_instructor.cmd", "bin/drill_instructor.cmd"},
       {copy, "files/start_erl.cmd", "bin/start_erl.cmd"},
       {copy, "files/install_upgrade.escript", "bin/install_upgrade.escript"},
       {copy, "files/sys.config", "releases/\{\{rel_vsn\}\}/sys.config"},
       {copy, "files/vm.args", "releases/\{\{rel_vsn\}\}/vm.args"}
      ]}.

在 rebar.config 中，我还添加了 rel 作为sub_dir：

{sub_dirs, ["rel"]}.

【讨论】：

谢谢，密钥是{lib_dirs, ["../deps"]}