我怎样才能让一个Ant属性文件来覆盖在另一组的价值？ [英] How can I allow an Ant property file to override the value set in another?

问题描述

我有一只蚂蚁文件执行以下操作：

I have an ant file that does the following:

<property file="project.properties" description="Project configuration properties"/>
<property file="build-defaults.properties" description="default build configuration."/>
<property file="build.properties" description="local build configuration overrides"/>

我想在build-defaults.properties（这是在给SCM选中）设置默认值，但允许开发人员覆盖本地build.properties价值观，使他们能够在本地路径工作。

I want to have defaults set in build-defaults.properties (which is checked in to SCM) but allow developers to override values in a local build.properties so that they can work with local paths.

问题是，它似乎并不奏效;我已经对此进行设置，创建了build.properties的覆盖，但我的路径值保持一个在build-defaults.properties设置。我如何做到这一点？

The problem is, it doesn't seem to be working; I've set this up, created an override in build.properties, but the value of my path remains the one set in build-defaults.properties. How do I accomplish this?

推荐答案

你设置初始的问题是，你有 build.properties 和 build-defaults.properties 逆转。

The initial problem with your set up is that you've got build.properties and build-defaults.properties reversed.

Ant属性不能被覆盖。这就是为什么通过 -Dproperty = value来在命令行上设置任何财产会覆盖你的文件中设置的任何东西;该属性设置，然后没有任何东西可以替代它。

Ant Properties are set once and then can never be overridden. That's why setting any property on the command line via a -Dproperty=value will always override anything you've set in the file; the property is set and then nothing can override it.

所以，你要这个设置方式是：

So the way you want this set up is:

<property file="build.properties" description="local build configuration overrides"/>
<property file="project.properties" description="Project configuration properties"/>
<property file="build-defaults.properties" description="default build configuration."/>

这方式：

1. 设置任何在命令行接管build.properties precedence


2. 在任何设置build.properties忽略其他值


3. 等。下来就行了。

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