[PATCH v4] tree: new applet

[Kang-Che Sung]

Hi Roger,

May I suggest you add an option to draw the tree lines using ASCII
characters only, and make the Unicode support optional at build time?

I just feel uncomfortable when I see source code containing embedded UTF-8
characters and the strings have no ASCII alternative.

The DOS tree command has the "/a" option. You know what I mean.

Thank you.

On Sunday, May 1, 2022, Roger Knecht <rknecht at pm.me> wrote:
> Add new applet which resembles the MS-DOS tree program to list
directories and files in a tree structure.
>
> function                                             old     new   delta
> tree_print                                             -     388    +388
> .rodata                                            95678   95767     +89
> tree_main                                              -      73     +73
> tree_print_prefix                                      -      28     +28
> packed_usage                                       34417   34429     +12
> globals                                                -       8      +8
> applet_main                                         3192    3200      +8
> applet_names                                        2747    2752      +5
>
------------------------------------------------------------------------------
> (add/remove: 5/0 grow/shrink: 4/0 up/down: 611/0)             Total: 611
bytes
>
> Signed-off-by: Roger Knecht <rknecht at pm.me>
> ---
> Changelog:
>
> V4:
> - Rephrase commit message
> - Updated bloatcheck to latest master
>
> V3:
> - Fixed symlink handling
> - Handle multiple directories in command line arguments
> - Extended tests for symlink and multiple directories
> - Reduced size by using libbb functions
>
> V2:
> - Fixed tree help text
> - Reduced size by 644 bytes
>
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