There several reasons why PRs cannot have (public) previews:
- The PR did not affect any relevant files (e.g. non-spec files in
`aio/` or `packages/`).
- The PR cannot be automatically verified as "trusted" (based on its
author or labels).
Note:
The endpoint does not check whether there currently is a (public)
preview for the specified PR; only whether there can be one.
PR Close#25671
Since 808bd4af4, we are no longer pre-verifying PRs before uploading the build
artifacts to the preview server, thus we no longer need the
`travis-preverify-pr.sh` script or the `GITHUB_TEAM_MEMBERSHIP_CHECK_KEY`
variable.
This commit adds an API endpoint for notifying the preview server about PR
updates (`/pr-updated`). According to the update, the preview server can take
several actions. Currently, it will only check and (if necessary) update the
PR's preview visibility (but more actions could be supported in the future).
The API can be used with an automatic trigger (e.g. a GitHub webhook) to
instantly update a PR's preview visibility when it changes.
Fixes#16526
Previously, `BuildCreator#changePrVisibility()` would throw an error if the PR's
visibility was already up-to-date or if the PR directory did not exist (e.g. was
removed). This method was only used from inside `BuildCreator#create()`, which
had already checked for the existence of the directories.
This commit renames `changePrVisibility()` to `updatePrVisibility()` and makes
it more "forgiving" (i.e. it will only throw if both public and non-public
directories exist). This allows it to be used on events that may or may not have
caused the PR's visibility to change (e.g. a GitHub webhook triggered whenever a
PR's labels change).
Use the 7 first characters of the 40-chars long SHAs for shorter/cleaner URLs.
The collision probability is extremely low (since all SHAs are further
"namespaced" under the corresponding PR). In case of a collision, the second PR
will not be deployed, in order to avoid overwriting the original build.
(This is a design decision to keep the implementation simple. It can be changed
later if necessary.)
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.
Gaining access to another PR's JWT, would allow faking that PR's author wrt to
GitHub team membership verification for as long as the JWT is valid (currently
90 mins).
