Build pipeline support

[benlangfeld]

First, a regular reminder: pkgr and Packager.io are awesome!

We're delivering more and more of our software as packages using Packager.io, and one thing that is currently missing and preventing us from moving forward with other projects is integration into a CI pipeline. Ideally I would like to build and publish packages only for commits which passed CI.

It strikes me that perhaps Github's commit-marking API might be useful for this, such that Packager builds might only be triggered by a successful Travis CI build of a commit or similar workflow?

Additionally it would be nice for Packager to mark commits as built such that I could then monitor for that and use it to trigger deployments, or maybe even Packager could raise events of its own.

[crohr]

This is definitely something I want to implement on Packager.io. Using the Github Statuses API should indeed be sufficient for what we want to achieve.

Note that right now you could be notified of when a build terminates using the after hook in your .pkgr.yml file (using curl to post something to a third-party deployment process for instance).

[crohr]

packager.io is going to switch to GitHub Actions soon, at this point this will automatically be reflected.