armenzg: Sess16 - Automated testing on Hera

This blog post announces that I have got my hands dirty adding the steps to do automated builds on buildbot with testings on the hera server.
I have got access this last past Tuesday and the last 4 weeks I was working on the buildbot configuration for CAIRO, and this is the summary of what I have tried to do:

• Access the buildmaster in hera.senecac.on.ca
• Modify the master.cfg to add the build steps for the linux machine
• Add mozbuild.py file and the mozconfig-linux-tests

My goal was to force a complete build with tests without ruining Adam's configuration (he set up the try server)

NOTE: This buildbot setup will allow to force builds with tests and builds without tests









NOTE: You can see the second yellow column that indicates that is building - check it yourself OR force a build (and go for a coffe)

Problems

As always, I keep a section for problems and solutions for future reference:

• I used "buildbot restart ." instead of "buildbot reconfig ." and therefore I did put the try server down :( - BTW, do not use "restart" if you want to just re-read master.cfg so your changes are applied, because instead of using the last working copy of master.cfg (as it says) it just dies and never starts again
• I had to put some of the environment variables (MozillaEnvironments['centos']) inside buildcustom/env.py file since it was defined in there and also in my code but did not catch it this way
  
• At some point my "mozconfig-linux" file contained CRLF and I would get "line 17 errors" when I had only 9 lines; I used file mozconfig-linux-tests to confirm and dos2unix mozconfig-linux-tests to fix it (thanks rhelmer) - I remember the "line" errors but I can't find the log that said it - When I do cat .mozconfig, you can actually see that there are extra new lines in the output)
• There are has been a lot of small problems that I have run into but not relevant

Conclusion

I am in the Hera server, I can make changes and I have got a build with automated testing.

What is left?

• Make the other machines to build too (I do not know if they are up and running)
  
• Learn how to make it build following the "tryserver" way (give a patch and run the build with tests)
• Find out why the compiling takes forever