Question

我有这个詹金斯管道脚本（您应该可以将其直接粘贴到空白管道版本中）

import hudson.console.LineTransformationOutputStream
import hudson.console.ConsoleLogFilter
import java.nio.charset.Charset
import java.nio.charset.StandardCharsets

class MyConsoleLogFilter extends ConsoleLogFilter {

    OutputStream decorateLogger(AbstractBuild build, OutputStream logger)
            throws IOException, InterruptedException {
        return new MyOutputStream(logger, StandardCharsets.UTF_8)
    }
}

class MyOutputStream extends LineTransformationOutputStream {
    def logger
    def charset

    MyOutputStream(OutputStream logger, Charset charset) {
        this.logger = logger
        this.charset = charset
    }

    void close() throws IOException {
        super.close();
        logger.close();
    }

    void eol(byte[] bytes, int len) throws IOException {
        String line = charset.decode(ByteBuffer.wrap(bytes, 0, len)).toString();
        logger.write("xxx ".getBytes(charset))
        logger.write(line.getBytes(charset));
    }
}

node {
    withContext(new MyConsoleLogFilter()) {
        echo 'Hello World'
    }
    echo 'Hello World'
}

由于Hello World的换行，我希望看到第一个xxx前缀为MyConsoleLogFilter。

但是我所看到的只是控制台输出为灰色，如下所示：

Started by user Admin
Running in Durability level: MAX_SURVIVABILITY
[Pipeline] node
Running on Jenkins in /var/jenkins_home/workspace/mike-learning
[Pipeline] {
[Pipeline] withContext
[Pipeline] {
[Pipeline] echo
[Pipeline] }
[Pipeline] // withContext
[Pipeline] echo
Hello World
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS

为什么withContext()块中的控制台输出被隐藏？

Answer 1

一个同事（Hibri Marzook）为我解决了这个问题。他将我指向https://issues.jenkins-ci.org/browse/JENKINS-53151，这促使我这样做：

import hudson.console.LineTransformationOutputStream
import hudson.console.ConsoleLogFilter
import java.nio.charset.Charset
import java.nio.charset.StandardCharsets

class MyConsoleLogFilter extends ConsoleLogFilter {
    @NonCPS
    OutputStream decorateLogger(AbstractBuild build, OutputStream logger)
            throws IOException, InterruptedException {
        return new MyOutputStream(logger, StandardCharsets.UTF_8)
    }
}

class MyOutputStream extends LineTransformationOutputStream {
    def logger
    def charset

    MyOutputStream(OutputStream logger, Charset charset) {
        this.logger = logger
        this.charset = charset
    }

    @NonCPS
    void close() throws IOException {
        super.close();
        logger.close();
    }

    @NonCPS
    void eol(byte[] bytes, int len) throws IOException {
        def line = charset.decode(java.nio.ByteBuffer.wrap(bytes, 0, len)).toString();
        logger.write("xxx ".getBytes(charset))
        logger.write(line.getBytes(charset));
    }
}

node {
    withContext(new MyConsoleLogFilter()) {
        echo 'Hello World'
    }
    echo 'Hello World'
}

现在可以使用了。

Answer 2

另一种方法是使用Java插件来实现，您不需要NonCPS注释，而是实现Serializable接口：

@Extension
public class MyConsoleLogFilter extends ConsoleLogFilter implements Serializable {
    private static final long serialVersionUID = 1;

    @Override
    public OutputStream decorateLogger(Run build, final OutputStream logger) {
        return new MyOutputStream(logger, StandardCharsets.UTF_8);
    }

    private class MyOutputStream extends LineTransformationOutputStream {
        private OutputStream logger;
        private Charset charset;

        MyOutputStream(OutputStream logger, Charset charset) {
            this.logger = logger;
            this.charset = charset;
        }

        public void close() throws IOException {
            super.close();
            logger.close();
        }

        public void eol(byte[] bytes, int len) throws IOException {
            String line = charset.decode(java.nio.ByteBuffer.wrap(bytes, 0, len)).toString();
            logger.write("xxx ".getBytes(charset));
            logger.write(line.getBytes(charset));
        }
    }

}

Jenkins管道脚本中的withContext（）隐藏控制台输出

2 个答案: