Add jj item

[ETCaton]

Description

Adds an item for jj based on their fish and Starship prompts.

Screenshots (if appropriate)

How Has This Been Tested

• I have tested using Linux.
• I have tested using MacOS.

Checklist

• I am ready to update the wiki accordingly.
• I have updated the tests accordingly.

[fowles]

I think something is going wrong with the coloration for this. I tried adding it in and it seems to not obey the pill forms in some weird way

[fowles]

It would also be nice if this handled co-located jj repos better instead of having both the jj and the git items

[ETCaton]

I haven't used pills so I haven't seen this, but will take a look at that and identifying colocation in ~1 week or so. The secondary ID (commit hash) would be sufficient for Git operations and colocation's an explicit-enough interaction I think it would make sense to exclude Git in that case 👍

[fowles]

from my debugging it has something to do with needing

SETUVAR tide_jj_bg_color:000000
SETUVAR tide_jj_color:E4E4E4
SETUVAR tide_jj_icon:\x1d

in fish_variables (to get any pills at all to work).

But then the colors you get from change_id.shortest(8) with log --color=always causes it to blow away the in progress colors

[fowles]

What I ended up using is:

function _tide_item_jj
    if not command -sq jj; or not jj root --quiet &>/dev/null
        return 1
    end

    set change_id (jj log --no-graph --color=never \
        -r '@' -T 'change_id.shortest(8)')

    string match -qr '(?<changes>#*)(?<bookmark>\w+)' \
      (jj log --no-graph --color=never \
          -r 'heads(::@ & bookmarks())::@' -T '"#" ++ self.bookmarks()')
    set ahead (math (string length $changes) - 1)

    set jj_status (jj log -r@ -n1 --no-graph --color=never -T '
    separate(" ",
        bookmarks.map(|x| truncate_end(10, x.name(), "…")).join(" "),
        tags.map(|x| truncate_end(10, x.name(), "…")).join(" "),
        diff.stat().total_added() ++ "+",
        diff.stat().total_removed() ++ "-",
        if(conflict, "conflict"),
        if(divergent, "divergent"),
        if(hidden, "hidden"),
    )' | string trim)
    _tide_print_item jj "$change_id $ahead⇡$bookmark $jj_status"
end

[fowles]

Suggested change

	bookmarks.map(|x| if(
	x.name().substr(0, 10).starts_with(x.name()),
	x.name().substr(0, 10),
	x.name().substr(0, 9) ++ "…")
	).join(" "),
	tags.map(|x| if(
	x.name().substr(0, 10).starts_with(x.name()),
	x.name().substr(0, 10),
	x.name().substr(0, 9) ++ "…")
	).join(" "),
	bookmarks.map(|x| truncate_end(10, x.name(), "…")).join(" "),
	tags.map(|x| truncate_end(10, x.name(), "…")).join(" "),