Interesting question. I can't comprehend the downvote.
- The first of your links describes how you should be able to do it: via "repeated GET requests".
- The second is about setting the result of an upstream job according to the content of a downstream job's console output. This can be achieved easier by something else but parsing the console output.
- The third is about the opposite direction: passing output from an upstream job to a downstream job.
I'm going to try the first and will update this answer accordingly then.
UPDATE 1
The following updates the upstream's log once the downstream build has finished.
// From: Output the console text of a Jenkins job that my Job is running
// http://stackoverflow.com/a/31573477/1744774
final String JENKINS_HOST = 'http://<your Jenkins host>'
final String DOWNSTREAM_NAME = '<your downstream job's name>'
final String SEPARATOR = new String(new char[8]).replace('', '-')
final int DOWNSTREAM_BUILD_NO = build(DOWNSTREAM_NAME).getBuild().getNumber()
println("${SEPARATOR} Begin console HTML output of ${DOWNSTREAM_NAME} #${DOWNSTREAM_BUILD_NO} ${SEPARATOR}")
printConsoleOutputHtmlFrom(
"${JENKINS_HOST}/job/${DOWNSTREAM_NAME}/${DOWNSTREAM_BUILD_NO}/console")
println("${SEPARATOR} Begin console text output of ${DOWNSTREAM_NAME} #${DOWNSTREAM_BUILD_NO} ${SEPARATOR}")
printConsoleOutputTextFrom(
"${JENKINS_HOST}/job/${DOWNSTREAM_NAME}/${DOWNSTREAM_BUILD_NO}/consoleText")
println("${SEPARATOR} End console output of ${DOWNSTREAM_NAME} ${SEPARATOR}")
import org.xml.sax.InputSource
void printConsoleOutputHtmlFrom(String consoleUrl)
{
println(xPathExpression('//pre[contains(@class, "console-output")]')
.evaluate(new InputSource(responseFrom(consoleUrl))))
}
import java.nio.charset.StandardCharsets
void printConsoleOutputTextFrom(String consoleTextUrl)
{
BufferedReader log = new BufferedReader(
new InputStreamReader(responseFrom(consoleTextUrl), StandardCharsets.UTF_8.name()));
while ((line = log.readLine()) != null)
{
println(line)
}
}
InputStream responseFrom(String url)
{
// See Using java.net.URLConnection to fire and handle HTTP requests
// http://stackoverflow.com/a/2793153/1744774
URLConnection connection = new URL(url).openConnection();
connection.setRequestProperty("Accept-Charset", StandardCharsets.UTF_8.name());
return connection.getInputStream();
}
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;
XPathExpression xPathExpression(String expression)
{
// See How to read XML using XPath in Java
// http://stackoverflow.com/a/2811101/1744774
XPathFactory xPathFactory = XPathFactory.newInstance();
XPath xPath = xPathFactory.newXPath();
return xPath.compile(expression);
}
References:
UPDATE 2
The following updates the upstream's log on the fly.
// From: Output the console text of a Jenkins job that my Job is running
// http://stackoverflow.com/a/31573477/1744774
final String JENKINS_HOST = 'http://<your Jenkins host>'
final String DOWNSTREAM_NAME = '<your downstream job's name>'
final String SEPARATOR = new String(new char[8]).replace('', '-')
import java.util.concurrent.TimeUnit
parallel(
{ build(DOWNSTREAM_NAME) },
{
final String THIS_BUILD_NAME = build.getProject().getName()
final int THIS_BUILD_NO = build.getNumber()
final int DOWNSTREAM_BUILD_NO = downstreamBuildNoFrom(
"${JENKINS_HOST}/job/${THIS_BUILD_NAME}/${THIS_BUILD_NO}/consoleText")
println("${SEPARATOR} Begin console output of ${DOWNSTREAM_NAME} #${DOWNSTREAM_BUILD_NO} ${SEPARATOR}")
printConsoleOutputTextChunksFrom(
"${JENKINS_HOST}/job/${DOWNSTREAM_NAME}/${DOWNSTREAM_BUILD_NO}/consoleText", 3L, TimeUnit.SECONDS)
println("${SEPARATOR} End console output of ${DOWNSTREAM_NAME} #${DOWNSTREAM_BUILD_NO} ${SEPARATOR}")
})
int downstreamBuildNoFrom(String thisBuildConsoleTextUrl)
{
int downstreamBuildNo = -1
while (downstreamBuildNo <= 0)
{
TimeUnit.SECONDS.sleep(1L)
BufferedReader log = new BufferedReader(
new InputStreamReader(responseFrom(thisBuildConsoleTextUrl), StandardCharsets.UTF_8.name()));
while ((line = log.readLine()) != null)
{
if (line.matches('.* Build .* started'))
{
final int buildNoIdx = line.indexOf('#') + 1
downstreamBuildNo = Integer.parseUnsignedInt(
line.substring(buildNoIdx, line.indexOf(' ', buildNoIdx)))
break
}
/*if (log.lines().anyMatch(t -> t.matches(".* Build .* started")))
{
// in case of Java >=8
}*/
}
}
return downstreamBuildNo
} // downstreamBuildNoFrom()
import java.nio.charset.StandardCharsets
void printConsoleOutputTextChunksFrom(String consoleTextUrl, long updateInterval, TimeUnit updateIntervalUnit)
{
final int LINE_BREAK_LENGTH = System.getProperty("line.separator").length()
int charsPrintedSoFar = 0
while (true) // effectively a do { ... }
{
int charsPrintedThisTime = 0
BufferedReader chunk = new BufferedReader(
new InputStreamReader(responseFrom(consoleTextUrl), StandardCharsets.UTF_8.name()))
chunk.skip(charsPrintedSoFar)
while ((line = chunk.readLine()) != null)
{
println(line)
charsPrintedThisTime = line.length() + LINE_BREAK_LENGTH
charsPrintedSoFar += charsPrintedThisTime
}
updateIntervalUnit.sleep(updateInterval)
if (charsPrintedThisTime == 0)
break
}
} // printConsoleOutputTextChunksFrom()
InputStream responseFrom(String url)
{
// See Using java.net.URLConnection to fire and handle HTTP requests
// http://stackoverflow.com/a/2793153/1744774
URLConnection connection = new URL(url).openConnection();
connection.setRequestProperty("Accept-Charset", StandardCharsets.UTF_8.name());
return connection.getInputStream();
}
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
