[pipeline][plugins] Various plugin into pipeline

[jer...@bodycad.com]

Hi,

I'm new to the pipeline stuff started yesterday to port my projects to pipeline, work great so far but I have a few questions or part I cannot figure out how they work:

1. Sending email
1. with email template (I had some email template already done along with some customization)
   
2. can we use the with env variables for the templates?
2. Warning plugins results ???: https://wiki.jenkins-ci.org/display/JENKINS/Warnings+Plugin
3. ConsoleLogParsing
1.  "Mark build Unstable on Warning" or "Mark build Failed on Error" are done through the try catch? or is there any way to inspect the build 
2. Can we limit it to a few steps or current stage?
4. Plot graph from xml data file (Plot build data "Load data from xml file using xpath") https://wiki.jenkins-ci.org/display/JENKINS/Plot+Plugin
5. ArtifactArchiver could have a category name (or by stage name at least) to split each part artifact
   
6. How stable can we expect those pipeline API to be? I can wait to deploy this no problems if this still considered changing a lot, just want to known the current status.

So far it was fairly easy to make it work (checkout, build, run unit test, export xunit test results, run custom qml inspection and parse console output, run doxygen, etc). Maybe because I was having a lot of python scripts to handle many of those, so now I just bat "python myscrip.py" them in sequence, but still it's easy and neat. Nice work, this aim in the right direction, will be able to port many of those python script into groovy into the futur and this already solve problems with loop over dynamic repetition (unknown number by Jenkins at project level).

Big thumbs up from here guys,

regards,

Jerome