According to the docs, the response of GitHub's [PR files API][1]
_"includes a maximum of 300 files"_. This means that if a PR contains
more files, it is possible that not all files are retrieved (which
could, for example, give a false negative for the "significant files
touched" check - not likely but possible).
This commit fixes it by using paginated requests to retrieve all changed
files.
[1]: https://developer.github.com/v3/pulls/#list-pull-requests-files
PR Close#25671
Previously, Travis pushed the build artitfacts to the preview server.
This required us to use JWT to secure the POST request from Travis, to
ensure we couldn't receive malicious builds.
JWT has been deprecated and we are moving our builds to CircleCI.
This commit rewrites the TypeScript part of the preview server that
handles converting build artifact into hosted previews of the docs.
This commit introduces the ability to show previews for PRs by any author. It works as follows:
- The build artifacts of all PRs are uploaded to the preview server.
- Automatically verified PRs (i.e. from trusted authors or having a specific label) are deployed and
publicly accessible as usual.
- PRs that could not be automatically verified are stored for later use (after re-verification).
- A PR can be marked as "trusted" and make its preview publicly accessible by adding the GitHub
label specified in the `AIO_TRUSTED_PR_LABEL` env var of the preview server.
At the moment, there is no automatic mechanism for notifying the preview server about changes to the
PR's verification status. The PR's "visibility" will be checked and updated every time a new build
is uploaded.