Jenkin job status

Check to see if a build is running or not

I tried the Python script in the answer to this question, but couldn't get it to work. I don't know Python, and didn't want to invest any time in debugging, but was able to read enough of the script to gain inspiration from it.

All I need to do is check to see if a build is running or not. To do that I used curl and grep, like this:

curl http://myjenkins/job/myjob/lastBuild/api/json | grep --color result\":null

If a build is in progress, a grep for result\":null will return 0.
If a build is finished, a grep for result\":null will return 1.
Not especially elegant, but it works well enough for my needs.

For example, I have a Bash script that starts a build, then waits for it to finish:

JOB_URL=http://jenkins.local/job/stevehhhbuild
JOB_STATUS_URL=${JOB_URL}/lastBuild/api/json

GREP_RETURN_CODE=0

# Start the build
curl $JOB_URL/build?delay=0sec

# Poll every thirty seconds until the build is finished
while [ $GREP_RETURN_CODE -eq 0 ]
do
    sleep 30
    # Grep will return 0 while the build is running:
    curl --silent $JOB_STATUS_URL | grep result\":null > /dev/null
    GREP_RETURN_CODE=$?
done

echo Build finished
Thanks for the inspiration, Catskul!

https://serverfault.com/questions/309848/how-to-check-the-build-status-of-a-jenkins-build-from-the-command-line?newreg=17eb507a167f4d94bac7f9684e1c4298