Web Workflow: SD Folder contents intermittently only shows placeholder

[makermelissa]

CircuitPython version

Adafruit CircuitPython 9.0.0-rc.0 on 2024-03-08; Adafruit Camera with ESP32S3
Board ID:adafruit_esp32s3_camera
UID:CD4557ADE748

Code/REPL

Fancy Camera Example is running on Camera

Behavior

N/A. No error messages. See Description for more info.

Description

Occasionally, the SD folder shows incorrect files. I noticed this after a file operation especially when deleting or uploading a file, the only file that will show is placeholder.txt (and ._placeholder.txt). However, refreshing the browser shows the actual files there. It doesn't seem to affect the root file system and I noticed this both with a read only and non-read only file system.

Additional information

This could be related to #8980, as it was also intermittent.

[tannewt]

This happens if you request the sd directory while code is restarting. SD access depends on the user code being active.

[makermelissa]

Ah ok. Yeah, I just checked and the file ops were causing a code restart. Do you know if there is a way to have it check if code is still restarting so that the correct contents are shown to the user. I could probably make something with the full code editor, but the problem would persist with the built-in one.

[tannewt]

I don't think there is. My intent was to fix this by having SD cards mount automatically and persist on boards with it built in.

[tannewt]

Closing in favor of #8678