Uploading LittleFS Data to Flash

[time4tux]

Is there a way to use Arduino CLI or a stand-alone CLI program to upload LittleFS data to Flash (e.g. on an ESP8266)?

Thanks.

[pert]

time4tux:
Is there a way to use Arduino CLI

No. The process of uploading LittleFS data to an ESP8266 via the Arduino IDE is done via a plugin. Arduino CLI doesn't have any support for the Arduino IDE's plugins.

time4tux:
or a stand-alone CLI program to upload LittleFS data to Flash (e.g. on an ESP8266)?

Certainly. There are actually two processes that need to happen, each with its own command line tool:

• create littlefs image - this is done with a tool named mklittlefs. You can get it here: Releases · earlephilhower/mklittlefs · GitHub
• Upload the littlefs image - you can use esptool.py for this: GitHub - espressif/esptool: Espressif SoC serial bootloader utility

Unfortunately, you can't see the commands the IDE plugin runs when you use it, but you can find it in the source code:

earlephilhower/arduino-esp8266littlefs-plugin/blob/master/src/ESP8266LittleFS.java