* [jenkins] Create comment file for PR builds. (#3799)
* [jenkins] Create comment file for PR builds.
* [tools] Create stamp file after doing things that might modify files we care about. (#3864)
We have consistency checks to verify that no unexpected files are modified
done when comparing APIs in for a pull request.
Unfortunately the check didn't take into account that checking out the
revision to do the API check against might modify some of the files in the
consistency check itself, thus triggering the consistency check.
Fix this by only verify timestamps of files modified after checkout out the
revision, which is the only thing we care about anyway.
For examples see PR #3855 or PR #3850.
* [jenkins] Don't succeed if something went wrong when creating API or generator diff. (#3865)
Ref: https://github.com/xamarin/xamarin-macios/pull/3855#issuecomment-378441993
* [jenkins] Automatically detect mono bumps and enable device build.
And do this before fetching labels, so that we can skip fetching labels if we
know we're already enabling the device build.
* [tests] Bumping LLVM merits enabling device build and running mtouch + BCL tests.
* [jenkins] Add support for enabling device builds using labels.
* [xharness] Give the iOS MSBuild tests 30 minutes to finish.
* [mtouch tests] Give the BuildTestProject 10 minutes to compile each test case.
Wrench bots build the dontlink test in ~3m40, but that's apparently not enough
for the Jenkins bots (slower bots?), which time out the test after 5 minutes.
So double the timeout to 10 minutes, which will hopefully give the Jenkins
bots enough time to run the test to completion.