[Feature] Select platform based on pull request

• Feature Request.

Description of problem

Every now and then I would like to test a new fix or feature in the platform libraries of my project. For example, for ESP8266, I use this one as a platform:

platform = https://github.com/platformio/platform-espressif8266.git#feature/stage

But this does only fetch the feature/stage branch of that repo.

What I would like is to be able to select a specific pull request of that (esp8266/Arduino) repo to set as my platform.

In the retrieved packages directory of PIO, the git config is not complete or correct. I do see the pull requests on origin, but when I want to checkout based on a PR, I get an error like “missing delta bases”. So that’s why I think it would be a great feature if PlatformIO could handle all this hassle.

Since this is more of a generic Git/Github issue, I hoped it would be a PlatformIO-core issue, but if it does not belong here, please let me know where it is more appropriate.

[TD-er]

@ivankravets You’re right. I do need extra coffee I guess. Now using framework-arduinoespressif8266 @ https://github.com/aerlon/Arduino.git#wifi_mesh_update_2.2 and it does seem to be cloning.

[Jason2866]

Thx! found my error your P.S. was the hint! forgot to define in [env] something like platform_packages = ${core_stage.platform_packages}