I think this will not work. If no previous result is found, then an empty set 
of warnings is used as baseline, so we still get a large number of new 
warnings. I wonder if it would make sense to change the current behavior of my 
plugin. I must admit that marking all warnings of the first build as new is not 
a conscious decision. Maybe I should change that so that the first build always 
has no new warnings. What do you think? I’m not sure if I break something from 
other peoples’ jobs if I change that…

The other suggestions about changing the graphs: this is currently not 
supported will will never be supported with the current chart implementation. 
In the future (*), I would like to replace the png server side rendered charts 
with client side rendered JS charts. Then it should be easy to configure these 
graphs on the client side.

(*) Currently this is blocked by an integration of an old Prototype.JS library 
in Jenkins core, see https://issues.jenkins-ci.org/browse/JENKINS-49319 for 
details

> Am 29.03.2018 um 21:42 schrieb Mark Waite <mark.earl.wa...@gmail.com>:
> 
> What if the first build on a branch were run without calculating warnings 
> (since you intend to ignore warnings from the first build, you could choose 
> not to compute those warnings and not to report them.
> 
> After first build is complete, reconfigure the job (Jenkins UI or in the 
> Jenkinsfile if Pipeline) to report warnings.
> 
> Mark Waite
> 
> On Thu, Mar 29, 2018 at 12:26 PM Dan <daniel.faie...@remcom.com 
> <mailto:daniel.faie...@remcom.com>> wrote:
> Jenkins uses a trend graph to display things like failed unit tests or 
> compilation warnings as a function of build number. Is there a way to 
> suppress only the first build OR to limit the height of the y-axis?
> 
> My company's workflow
> - create a copy of a Jenkins job for your particular branch
> - Build the branch without changes. This gives a baseline for the # of 
> warnings in the code (it has very old code, so there are a LOT)
> - The branch then automatically builds daily. New warnings introduced by the 
> developer show up in the Trend Graph.
> 
> The Trend Graph is configured to show only new or fixed warnings.
> The problem is that the 1st build introduces a ton of "new" warnings. This 
> pushes the +Y-axis max value to >1000. Any warnings fixed/introduced after 
> that are not visible.
> 
> Solution
> If we could somehow suppress showing just that first build, while still 
> showing all subsequent builds, this would be fixed. Or, if the +Y-axis could 
> be limited to show numbers from 0-100, this would be fixed.
> 
> Is this possible?
> 
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