jenkinsci/log-parser-plugin — pull request #1 by heimojuh (2011-10-13 20:28:19+00:00)
Title: Error graphs for job-page. Similar as in xUnit.

Gives the option on showing similar graphs as xUnit plugins and features do. Red for errors, yellow for warnings and blue for info's. There's an option in job config for enabling and disabling the graph. Pretty much copied from Jenkins core.