Fixes these issues with the demo index deployment (tested by manual deployment):
- Missing `handlers:` field in app.yaml
- Missing handler for the URL `/`
- Missing Flask entrypoint (even though no dynamic content is generated by it)
Closes#4074
Rather than runtime-querying of appengine versions within the
appengine environment, we can instead generate the index at deployment
time (from git tags) and just serve static content. This simplifies
the system and avoids dependence on Google Cloud.
This was less feasible before we adopted GitHub Actions, but is now
relatively simple. The index will be regenerated when the index code
is updated or when a new release is created.
Closes#4074
The script for deploying the demo version index page has a function
that chooses which versions to display. This script has a special
mode meant for testing that shows a default list of demo versions.
This mode was only supposed to trigger when run locally, but the
check did not work properly, so the demo version index was deploying
with a very out-of-date list of versions.
This fixes that check.
Closes#4074
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Joey Parrish
theodab