`ListTile` dartpad examples throw "Error loading gist"

[TahaTesser]

https://api.flutter.dev/flutter/material/ListTile-class.html

This seems to work fine on master APIs but fails to load gist itself on stable.

[TahaTesser]

cc: @gspencergoog

[gspencergoog]

cc @domesticmouse

[domesticmouse]

I'm guessing the gist configured in the API docs doesn't exist? What is the target gist ID?

/cc @johnpryan

[domesticmouse]

Looks to me like the URL of the DartPad embed is https://dartpad.dev/embed-flutter.html?split=60&run=true&null_safety=true&sample_id=material.ListTile.5&sample_channel=master

@johnpryan should this work? I don't see a gist ID in this URL.

[johnpryan]

This is using the sample_id parameter, not the id paramter. We should probably double check that there's a sample called material.ListTile.5 on the master channel.

[gspencergoog]

You're correct, there isn't one being generated on the master channel.

It only generates these on master:

material.ListTile.2.dart
material.ListTile.2.json
material.ListTile.3.dart
material.ListTile.3.json
material.ListTile.7.dart
material.ListTile.7.json
material.ListTile.8.dart
material.ListTile.8.json

I assume this is because something changed in those examples.

This is where our use of a single location for the samples breaks down, and it would be good to have the IDE plugins and Dartpad have a way to look in multiple places for samples (both stable and master, for instance).

I wonder if this is related to @godofredoc's recent changes to how docs are published: perhaps we used to merge the snippets directory at the top of the docs tree, and now we replace it?

[godofredoc]

This is probably related to my changes. API documentation was changed to be built on post-submit of the release branch candidates and to only post-process the version header/footer during the release process to stable.

@gspencergoog is there some code in the documentation generation script that I can change to make flutter-candidate-* branches ~= stable?