[PATCH] cmd: xxd: add new command

[Simon Glass]

On Wed, 24 Aug 2022 at 04:20, Roger Knecht <rknecht at pm.me> wrote:
>
> Add xxd command to print file content as hexdump to standard out
>
> Signed-off-by: Roger Knecht <rknecht at pm.me>
> ---
> The 'xxd' code has a lot in common with my ealier patch for 'cat'.
>
> Example:
> ```
> => xxd mmc 0:1 hello
> 00000000: 68 65 6c 6c 6f 20 77 6f 72 6c 64 0a 00 01 02 03  hello world.....
> 00000010: 04 05
> ```
>
>  MAINTAINERS                        |  7 +++
>  cmd/Kconfig                        |  5 ++
>  cmd/Makefile                       |  1 +
>  cmd/xxd.c                          | 85 ++++++++++++++++++++++++++++++
>  configs/sandbox64_defconfig        |  1 +
>  configs/sandbox_defconfig          |  1 +
>  doc/usage/cmd/xxd.rst              | 50 ++++++++++++++++++
>  test/py/tests/test_xxd/conftest.py | 35 ++++++++++++
>  test/py/tests/test_xxd/test_xxd.py | 23 ++++++++
>  9 files changed, 208 insertions(+)
>  create mode 100644 cmd/xxd.c
>  create mode 100644 doc/usage/cmd/xxd.rst
>  create mode 100644 test/py/tests/test_xxd/conftest.py
>  create mode 100644 test/py/tests/test_xxd/test_xxd.py

Reviewed-by: Simon Glass <sjg at chromium.org>