Define the output format of the computation result

[Angelmmiguel]

I want to add a bit more information about the file size than current du approach. I will explore the different approaches for the ouptut of every entry in the response.

In addition to that, I can also add a summary line with the totals. This line won't be displayed based on an optional parameter.

[Angelmmiguel]

I'm exploring several formats:

Combine entries, bytes first

bytes (on disk)   path

Example:

564 (4Kb)  ./README.md
300 (4Kb)  ./test.md

Combine entries, disk first

on disk (bytes)   path

Example:

4Kb (564)  ./README.md
4Kb (300)  ./test.md

Separate them

on disk   bytes   path

Example:

4Kb   564   ./README.md
4Kb   300   ./test.md

Include headers

DISK   BYTES   PATH
4Kb    564     ./README.md
4Kb    300     ./test.md

[Angelmmiguel]

To make it more similar to du output, I'm going to use the latest approach (include headers) and allow to disable them via argument:

> fu ./
DISK   BYTES   PATH
4Kb    564     ./README.md
4Kb    300     ./test.md

> fu --no-header ./
4Kb    564     ./README.md
4Kb    300     ./test.md