[PATCH 43/44] commands: introduce bfetch command

[Sascha Hauer]

On Mon, Aug 11, 2025 at 02:28:23PM +0200, Ahmad Fatoum wrote:
> Inspired by U-Boot's addition of the ufetch command and the neofetch
> utility for Linux[1], add a similar command to barebox.
> 
> The command is meant to simplify showing off a barebox port with some
> colored ASCII art. The usual alternative is a screenshot of a barebox
> boot up and prompt, which for a fresh port usually will contain some
> >= warning messages, which is not as pleasant to look at compared to:
> 
> :##:                                   :##: none at virt64
> -%%:  =#####.                          :%%- -----------
>       #@@@@@.                               Kernel: barebox 2025.07.0-<snip>
>       *@@@@@.                               Model: ARM QEMU virt64 (linux,dummy-virt)
>       *@@@@@.                               Config: arm64 multi_v8_defconfig
>       *@@@@@.      :=##=.                   CPU: Cortex-A57 r1p0 at EL1
>       *@@@@@.   :+%@@@@@@#+:                Memory: 1 GiB
>       *@@@@@:-*@@@@@@@@@@@@@%*-.            Uptime: 1 second
>       *@@@@@@@@@@@@@@%%@@@@@@@@@#=.         Shell: Hush with 155 commands and 8 aliases
>       *@@@@@@@@@@@%**+=+*%@@@@@@@@@%+.      Consoles: input0 cs0 netconsole-1
>       *@@@@@@@%#*++++++===+*#%@@@@@@@+      Features: FW_CFG HWRNG PCI VIRTIO
>       *@@@@@#*+++++++++++++===+#@@@@@+       barebox: /dev 9P BTHREAD DEEP RATP W^X
>       *@@@@@*+++++++++++++++++=*@@@@@+      Network: 1 interface, 1 up
>       *@@@@@*+++++++++++++++++=*@@@@@+        eth0: 0.0.0.0/0
>       *@@@@@*+++++++++++++++++=*@@@@@+      Hardening: init-stack
>       *@@@@@*+++++++++++++++++=*@@@@@+      Devices: 85 with 17 bound
>       *@@@@@*++++++++++++++++==*@@@@@+      Drivers: 220 drivers across 16 busses
>       *@@@@@%#*+++++++++++===+*%@@@@@+      Storage: 1x MTD (128 MiB)
>       *@@@@@@@@%#*++++===+*#%@@@@@@@@+      Environment: 28 bytes
>        -*%@@@@@@@@@%*++*%@@@@@@@@@%+:       Firmware:
>           :+#@@@@@@@@@@@@@@@@@@#=:            PSCI: v1.1 over hvc
>              .=*@@@@@@@@@@@%*-.
>                  -+%@@@@%+:
> -@@-                :==.               :@@-
> :**.                                   .**:

Commands like cpuinfo and uptime are not selected by bfetch, but used
unconditionally, so we might get some not-so-fancy

cpuinfo: No such file or directory
uptime: No such file or directory

messages in the bfetch output.

Sascha

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