有什么办法可以在Groovy中自动设置字符串中的Windows路径？ [英] Is there any way to automatically setting windows path in a string in groovy?

问题描述

我的项目根目录是：

D:/Project/Node_Project

我正在使用gradle插件在项目根目录中临时安装nodejs，以便在构建thoject时可以在项目中运行一些nodejs命令。插件如下：

I am using a gradle plugin to install nodejs temporarily in my project root directory so that some nodejs command can run in the project while the thoject builds. The plugin is as below:

plugins {
    id "com.github.node-gradle.node" version "2.2.4"
}
node {
    download = true
    version = "10.10.0"
    distBaseUrl = 'https://nodejs.org/dist'
    workDir = file("${project.buildDir}/nodejs")
}

因此，nodejs已安装在项目中的以下位置：

So, nodejs is getting installed inside the project in the location:

D:/Project/Node_Project/build/nodejs/node-v10.10.0-win-x64

现在，我正在使用 .execute（String []要在环境变量处设置的路径，要执行的文件的字符串路径，位于项目根目录中）方法，用于运行具有节点依赖关系的Windows命令。下面的代码：

Now, I am using a .execute(String[] "path to set at environment variable", String path of file to be executed which is in the project root directory) method to run a windows command with node dependency. Code below:

cmd = "node connect.js"
def process = cmd.execute(["PATH=${project.projectDir}/build/nodejs/node-v10.10.0-win-x64"],null)

在上述.execute方法中，有没有一种方法可以自动填充 build / nodejs / node-v10.10.0-win-x64 部分字符串，而不是将其硬编码到方法中？
类似的东西：

In the above .execute method, is there a way to auto-populate the "build/nodejs/node-v10.10.0-win-x64" part of the string instead of hardcoding it into the method? Something like:

def process = cmd.execute(["PATH=${project.projectDir}/.*"],null)

.execute方法的语法：
https://docs.groovy-lang.org/latest/html/groovy-jdk/java/lang/String.html#execute（java.lang.String []，％20java.io.File）

Syntax of .execute method: https://docs.groovy-lang.org/latest/html/groovy-jdk/java/lang/String.html#execute(java.lang.String[],%20java.io.File)

所有代码都在 build.gradle文件中。

All the codes are inside "build.gradle" file. Please help!

推荐答案

我问为什么你不只是编写 NodeTask ，但我了解您例如，您可以在后台运行它，而您不能这样做。

I asked why you don't just write a task of type NodeTask, but I understand that you like to run a it in the background, which you can't do with that.

您可以列出目录的内容，并将其用作命令的一部分。但是，您也可以从插件提供的扩展名中获取它。

You could list the content of a directory and use that as part of the command. But you could also just grab it from the extension provided by the plugin.

这没有记录，并且可能会在该插件的将来版本中中断，但是您可以做一些事情像这样（Groovy DSL）：

This is not documented and it might break in future releases of the plugin, but you can do something like this (Groovy DSL):

task connectJS {
    dependsOn nodeSetup
    doFirst {
        def connectProcess = "$node.variant.nodeExec $projectDir/src/js/connect.js".execute()
        // Blocking readers (if async, pipe to a log file instead)
        connectProcess.in.eachLine { logger.info(it) }
        connectProcess.err.eachLine { logger.err(it) }
    }
}

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