2011-12-29 56 views
6

我正在创建我的第一个gradle插件。我试图将文件从发布jar复制到我在项目中创建的目录中。尽管该文件存在于jar中,但我无法将其复制到目录中。从插件jar中插入Gradle插件文件

这是我的任务代码:

import org.gradle.api.DefaultTask; 
import org.gradle.api.tasks.TaskAction; 

class InitTask extends DefaultTask { 

    File baseDir; 

    private void copyEnvironment(File environments) { 
    String resource =  getClass().getResource("/environments/development.properties").getFile(); 
    File input = new File(resource); 
    File output = new File(environments, "development.properties"); 

    try { 
     copyFile(input, output); 
    } 
    catch (IOException e) { 
     e.printStackTrace(); 
    } 
    } 

    void copyFile(File sourceFile, File destFile) { 
    destFile << sourceFile.text 
    } 

    @TaskAction 
    void createDirectories() { 
    logger.info "Creating directory." 

    File environments = new File(baseDir, "environments"); 
    File scripts = new File(baseDir, "scripts"); 
    File drivers = new File(baseDir, "drivers"); 

    [environments, scripts, drivers].each { 
     it.mkdirs(); 
    } 

    copyEnvironment(environments); 

    logger.info "Directory created at '${baseDir.absolutePath}'." 
    } 
} 

这是我得到的错误:

:init 
java.io.FileNotFoundException:  file:/path-to-jar/MyJar.jar!/environments/development.properties (No such  file or directory) 
    at java.io.FileInputStream.open(Native Method) 
    at java.io.FileInputStream.<init>(FileInputStream.java:120) 
    at groovy.util.CharsetToolkit.<init>(CharsetToolkit.java:69) 
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.newReader(DefaultGroovyMethods.java:15706) 
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.getText(DefaultGroovyMethods.java:14754) 
    at org.codehaus.groovy.runtime.dgm$352.doMethodInvoke(Unknown Source) 
    at org.codehaus.groovy.reflection.GeneratedMetaMethod$Proxy.doMethodInvoke(GeneratedMetaMethod.java:70) 
    at groovy.lang.MetaClassImpl$GetBeanMethodMetaProperty.getProperty(MetaClassImpl.java:3465) 
    at org.codehaus.groovy.runtime.callsite.GetEffectivePojoPropertySite.getProperty(GetEffectivePojoPropertySite.java:61) 
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:227) 
    at br.com.smartcoders.migration.tasks.InitTask.copyFile(InitTask.groovy:29) 

只是强调,该development.properties是myjar这一内部环境的目录内.jar

回答

1

getClass().getResource()返回一个URL。要访问该URL,您必须直接阅读(例如,使用url.text),而不是先将其转换为字符串/文件。或者您可以使用getClass().getResourceAsStream().text,这可能更准确。在这两种情况下,您都可以选择指定文件编码。

+0

Hi @peter!有效! 这是新的copyEnvironment方法: void copyEnvironment(environments)String resource = InitTask.class.getResourceAsStream(“/ environments/development.properties”)。text; 文件输出=新文件(环境,“development.properties”); 输出<<资源 } – marceloemanoel 2011-12-29 19:39:09