Export to Markdown

[sharkdp]

Add a --export-markdown option in analogy to #41 for CSV and #42 for JSON.

The output could look like this:

| Benchmark | Mean [ms]   | Min. [ms] | Max. [ms] |
|-----------|-------------|-----------|-----------|
| command 1 | 205.1 ± 1.5 | 201.1     | 207.6     |
| command 2 | 403.5 ± 2.4 | 400.3     | 407.4     |

Rendered:

Command	Mean [ms]	Min. [ms]	Max. [ms]
command 1	205.1 ± 1.5	201.1	207.6
command 2	403.5 ± 2.4	400.3	407.4

[stevepentland]

I've started looking at this and it seems like we're going to implement this one by hand. There's been nothing I've seen that will do this form of serialization by default, and nothing in particular that will integrate with serde.

[sharkdp]

Using something like https://docs.rs/comrak/0.2.8/comrak/ could work (create an AST that represents the table and pretty-print it via format_commonmark).

On the other hand, maybe the easiest option for now would be to simply write! the markdown table by hand. It doesn't necessarily have to look pretty in the source file.

[stevepentland]

True, in our case simply creating the encoded values ourselves will probably be best as it is rather simple. I'll move into that next since #45 is now ready

[stevepentland]

@sharkdp I've completed this in my export-markdown branch. I'll make a PR once #45 has been merged.

Export result:

Benchmark	Mean [ms]	Min. [ms]	Max. [ms]
ls -R ~ | echo "test"	4.1 ± 0.7	1.2	6.5
ls -alR | echo "TEST"	5.1 ± 0.9	3.2	11.2

[sharkdp]

Looks great! Maybe we could add backticks ("`") around the command such that it would render as code?

[stevepentland]

Missed your comment, adding it now