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Simple Maven Mojo插件:布尔参数

maven-plugin maven

emptyset · 技术社区 · 14 年前

这应该很简单-我想我只是忽略了一些事情。我有一个简单的魔力:

package com.company.product.plugins;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;

/**
 * @goal diff
 */
public class CCDiffMojo extends AbstractMojo {

    /**
     * @parameter expression="${ccdiff.run}" default-value="true"
     */
    private boolean run;

    public void execute() throws MojoExecutionException {
        if (run) {
            getLog().info("Executing...");
            // TODO: Execute.
        } else {
            getLog().info("Skipping.");
        }
    }
}

以及pom.xml内容:

<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.company.product.plugins</groupId>
    <artifactId>ccdiff</artifactId>
    <packaging>maven-plugin</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>Content Catalog Diff</name>
    <dependencies>
        <dependency>
            <groupId>org.apache.maven</groupId>
            <artifactId>maven-plugin-api</artifactId>
            <version>2.0</version>
        </dependency>
    </dependencies>
</project>

这一切都是从 Maven plugin development guide .

所以,看来我可以做到:

$ mvn com.company.product.plugins:ccdiff:diff

这是为了执行我将要在其中为这个定制工具(它有点像XML diff)绘制逻辑的分支。布尔参数是一个标志,允许某人在执行大型项目的构建时关闭执行。但是,当我尝试:

$ mvn com.company.product.plugins:ccdiff:diff -Dccdiff.run=false

它仍然显示“正在执行…”消息,这意味着由于某种原因参数未被设置。

有什么想法吗?我觉得这就是其中的一个“D'Oh!”错误。

1 回复 | 直到 14 年前

crowne 14 年前

你的目标叫做差异… @goal diff ,请尝试不带“cc”的命令行,如下所示:

$ mvn com.company.product.plugins:ccdiff:diff -Ddiff.run=false

编辑:取2。

我按照你的想法创建了这个项目,它对我来说就像你拥有它一样有效。
我运行的是maven 2.2.1,输出如下:

C:\java\ws\ccdiff>set MAVEN_OPTS=-DXms_1024M -DXmx=2048M
[INFO] Scanning for projects...
[INFO] artifact com.company.product.plugins:ccdiff: checking for updates from central
[INFO] ------------------------------------------------------------------------
[INFO] Building Unnamed - com.company.product.plugins:ccdiff:maven-plugin:1.0-SNAPSHOT
[INFO]    task-segment: [com.company.product.plugins:ccdiff:diff]
[INFO] ------------------------------------------------------------------------
[INFO] [ccdiff:diff {execution: default-cli}]
[INFO] Executing...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 8 seconds
[INFO] Finished at: Tue Nov 23 16:27:10 CAT 2010
[INFO] Final Memory: 1M/4M
[INFO] ------------------------------------------------------------------------
C:\java\ws\ccdiff>mvn com.company.product.plugins:ccdiff:diff -Dccdiff.run=false

C:\java\ws\ccdiff>set MAVEN_OPTS=-DXms_1024M -DXmx=2048M
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building Unnamed - com.company.product.plugins:ccdiff:maven-plugin:1.0-SNAPSHOT
[INFO]    task-segment: [com.company.product.plugins:ccdiff:diff]
[INFO] ------------------------------------------------------------------------
[INFO] [ccdiff:diff {execution: default-cli}]
[INFO] Skipping.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Tue Nov 23 16:27:20 CAT 2010
[INFO] Final Memory: 1M/4M
[INFO] ------------------------------------------------------------------------
C:\java\ws\ccdiff>