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getenv: treat a read error like eof#7810
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Otherwise, the following would occur: * settings.toml is in the process of being written by host computer * soft-reset begins * web workflow tries to grab CIRCUITPY_WIFI_SSID, but loops forever because FAT filesystem is in inconsistent state and file reads error * settings.toml write by host computer never completes and the filesystem remains corrupt * restarting yields a soft-bricked device, because startup reads CIRCUITPY_WIFI_SSID again
dhalbert
requested changes
Mar 29, 2023
Co-authored-by: Dan Halbert <halbert@adafruit.com>
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Otherwise, the following would occur: