在groovy中如何获取运行脚本的路径? [英] How do you get the path of the running script in groovy?

问题描述

我正在编写一个 groovy 脚本，我希望通过存储在同一文件夹中的属性文件对其进行控制.但是，我希望能够从任何地方调用这个脚本.当我运行脚本时，它总是根据它的运行位置而不是脚本所在的位置查找属性文件.

I'm writing a groovy script that I want to be controlled via a properties file stored in the same folder. However, I want to be able to call this script from anywhere. When I run the script it always looks for the properties file based on where it is run from, not where the script is.

如何从脚本内部访问脚本文件的路径?

How can I access the path of the script file from within the script?

推荐答案

从 Groovy 2.3.0 开始，@SourceURI 注释可用于使用脚本位置的 URI 填充变量.然后可以使用此 URI 获取脚本的路径:

As of Groovy 2.3.0 the @SourceURI annotation can be used to populate a variable with the URI of the script's location. This URI can then be used to get the path to the script:

import groovy.transform.SourceURI
import java.nio.file.Path
import java.nio.file.Paths

@SourceURI
URI sourceUri

Path scriptLocation = Paths.get(sourceUri)

请注意，这仅在 URI 是 file: URI(或安装了 FileSystemProvider)，否则为 FileSystemNotFoundException 将由Paths.get(URI) 调用.特别是，某些 Groovy 运行时(例如 groovyshell 和 nextflow)会返回 data: URI，该 URI 通常与已安装的 FileSystemProvider 不匹配.

Note that this will only work if the URI is a file: URI (or another URI scheme type with an installed FileSystemProvider), otherwise a FileSystemNotFoundException will be thrown by the Paths.get(URI) call. In particular, certain Groovy runtimes such as groovyshell and nextflow return a data: URI, which will not typically match an installed FileSystemProvider.

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