What is a BuildRoot Override
Sometimes a package you are trying to build can't be done until another package that it depends on is updated. When building packages for rawhide, successful builds become available fairly soon after they complete. These packages can then be used to build other packages against.
However, when building for any of the release branches below rawhide, builds are usually only available once they are pushed to "stable". Often it isn't practical or convenient to wait for this to happen. You can work around this problem by submitting a BuildRoot Override for any package builds you need that haven't yet made it to "stable". This will place the package into the BuildRoot for the branch that you specify, until the expiry date that you specify. During this time, the package is available to be built against. It is good practice to specify an expiry date that is only as long as you need (eg, a few days). It can easily be extended if needed. You can also manually expire the Override before the expiry date.
To submit a BuildRoot override for a package, you need commit access. If you don't have commit access, you can ask the maintainer for the package you are interested in (or a proven packager) to submit the BuildRoot Override for you.
It usually takes about 15 to 30 minutes for a new BuildRoot Override to take effect.
Using Bodhi to manage Koji Buildroot Overrides
This document describes how to manage your Koji BuildRoot Overrides using Bodhi. Each section contains URLs for performing actions via the web and commands for doing it from the console.
Submitting a new override
bodhi --buildroot-override=<name-version-release> --duration=5 --notes="Useful details."
For example, you successfully built version 1.12.0 of the mocha package for f20, with a release value of 3. The command would be:
bodhi --buildroot-override=mocha-1.12.0-3.fc20 --duration=5 --notes="For running test suites when building other nodejs packages"
Viewing your own overrides
bodhi --my-overrides [--show-expired]
Viewing all overrides
bodhi --list-overrides [--show-expired]
Manually expiring your buildroot override
Extending your duration or editing override notes
bodhi --edit-override=<name-version-release> --duration=10 --notes="Oh hai"