jenkins-log-scanner 0.0.2

A package for efficiently scanning logs in Jenkins projects

JenkinsLogScanner - A fast utility for scanning Jenkins logs efficiently.

JenkinsLogScanner is a utility for recursively scanning every build log within a Jenkins project (whether it is top level org or a single job). Its power is in its ability to scan many build logs in parallel, but it can be used just as well to scan individual builds.

Environment Setup

The library only expects two environment variables to be defined: JENKINS_USER and JENKINS_PASSWORD. Make sure these credentials are set in these environment variables and this user has access to the target Jenkins projects.

Installation

Install with pip:

pip install jenkins-log-scanner

Basic Usage:

from jenkins_log_scanner.scan_jenkins import JenkinsLogScanner, Operation
import jenkins_log_scanner.log_operations as logops

url = 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2/'
scanner = JenkinsLogScanner(url)
ops = [
    Operation('head', logops.head),
    Operation('tail', logops.tail),
]

for s in scanner.scan_jenkins(ops):
    print(s)

Output:

{'jobUrl': 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2', 'buildNumber': 3, 'head': 'Started by user Adeiron Barolli\n', 'tail': 'Finished: FAILURE\n'}
{'jobUrl': 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2', 'buildNumber': 2, 'head': 'Started by user Adeiron Barolli\n', 'tail': 'Finished: SUCCESS\n'}
{'jobUrl': 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2', 'buildNumber': 1, 'head': 'Started by user Adeiron Barolli\n', 'tail': 'Finished: SUCCESS\n'}
...

To scan a single build, simply give the url to that build:

url = 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2/1'
# or
url = 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2/2'
# or
url = 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2/3'
# etc...

The Operation Class

Operation represents a callable that's not expected to be called until some unknown time. At initialization, optional kwargs can be provided and these will be passed to the callable when the call method is invoked at a later time.

This allows the user to bind certain arguments to the callable in advance. In the example above, the head and tail log operations both take optional lineCount parameters. So if the user was interested in seeing the last 2 lines instead of the default of 1, ops in the snippet above can be changed to the following:

ops = [
    Operation('head', logops.head),
    Operation('tail', logops.tail, lineCount = 2),
]

Output:

{'jobUrl': 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2', 'buildNumber': 3, 'head': 'Started by user Adeiron Barolli\n', 'tail': 'Build step "Execute shell" marked build\nFinished: FAILURE\n'}
{'jobUrl': 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2', 'buildNumber': 2, 'head': 'Started by user Adeiron Barolli\n', 'tail': 'Build step "Execute shell" marked build\nFinished: SUCCESS\n'}
{'jobUrl': 'http://localhost:8081/jenkins/job/testfolder1/job/testjob2', 'buildNumber': 1, 'head': 'Started by user Adeiron Barolli\n', 'tail': 'Build step "Execute shell" marked build\nFinished: SUCCESS\n'}
...