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key4hep-actions

Github actions for CI in the key4hep stack

Key4hep build

This action builds the Key4hep stack on the supported OSes for both the stable releases and the nightlies. After that, it runs the available tests using ctest. It also runs during the night every day to populate a cache (using ccache) that is later used by the action (for example, in pull requests) so that building will be faster if they files that are built haven't changed. For example, for a simple change in a README file the builds will be very fast since all the files are cached, but the workflow may take longer because of the tests.

Downstream build

This action does two things:

  • Builds packages downstream to check that the changes that were made do not break the packages that depend on the one that was changed

  • Builds packages that have been changed at the same time. For this to work there has to be a PR for each package. Then, in one of the pull request there has to be anywhere in the text a mention to all the PRs that we want to build together. This mention will look like this:

    PR text, explanation, release notes, etc
Depends on URL_OF_PR_1, URL_OF_PR_2

    There is some flexibility to try to catch possible edge cases: the urls don't need to be in the same line, they can be comma separated or space separated or and-separated.