在leiningen中定义项目特定的任务

Question

有没有一种方法可以在leiningen的项目中定义类似rake的任务。

我要定义leiningen project.clj一个自定义的任务，它在我的项目命名空间中调用一个函数

Answer 1

您可以define project-specific aliases，如：

:aliases {"launch" ["run" "-m" "myproject.main"] 
      ;; Values from the project map can be spliced into the arguments 
      ;; using :project/key keywords. 
      "launch-version" ["run" "-m" "myproject.main" :project/version] 
      "dumbrepl" ["trampoline" "run" "-m" "clojure.main/main"] 
      ;; :pass-through-help ensures `lein my-alias help` is not converted 
      ;; into `lein help my-alias`. 
      "go" ^:pass-through-help ["run" "-m"] 
      ;; For complex aliases, a docstring may be attached. The docstring 
      ;; will be printed instead of the expansion when running `lein help`. 
      "deploy!" ^{:doc "Recompile sources, then deploy if tests succeed."} 
      ;; Nested vectors are supported for the "do" task 
      ["do" "clean" ["test" ":integration"] ["deploy" "clojars"]]} 

您应该能此功能结合与lein-exec plugin定义别名到您的项目中运行任意代码的Clojure：

:aliases {"dosmth" ["exec" "-ep" "(use 'myproject.main) (foo 42)"]} 

现在你可以使用dosmth任务与lein：

lein dosmth 

这只是一个别名

lein exec -ep "(use 'myproject.main) (foo 42)"