How do I mix --select-1 and become(vim{})?

[elazar125]

I'm trying to use fzf --select-1 --bind 'enter:become(nvim {+})' to fuzzy-find files, while skipping over the fzf bit if I know what I'm looking for (and can type something sufficiently unique). However, when I trigger the --select-1 with a unique query, I never get the chance to press enter to trigger the become(), and the file name is just printed to stdout instead of being fed into vim.

Is there an event I can bind to that'll let me become(vim) with only one result?

[LangLangBart]

Is there an event I can bind to that'll let me become(vim) with only one result?

man fzf | less --pattern "AVAILABLE EVENTS"

You could try the one¹ event.

echo -n "$USER" | fzf --bind 'one:become:rev <<<{}'
# airap

The load² event combined with a transform³ action and an exported environment variable⁴ by fzf might work as well.

echo -n 'fzf' | fzf --bind 'load:transform:[[ $FZF_TOTAL_COUNT -eq 1 ]] && echo "become:man {}"'

All of the above methods have the minor downside of briefly flickering the UI.

Footnotes

1. changelog 0.39.0 ↩

2. changelog 0.36.0 ↩

3. changelog 0.45.0 ↩

4. changelog 0.46.0 ↩

[LangLangBart]

Unfortunately the load/transform version doesn't seem to do it, I'm still just getting the path printed to stdout.

Can u share the command ?

With one filtering down to one option also triggers the become()

That is an important point, you could unbind the one event with another event or hotkey, e.g. --bind 'change:unbind:one'

echo "foo\nbar" | fzf  --bind 'change:unbind:one' --bind 'one:become:echo {}'

[elazar125]

The full command I used for load/transform is

find_file_and_edit() {
    fzf \
        --multi \
        --select-1 \
        --query "$*" \
        --bind 'enter:become("$EDITOR" {+}),load:transform:[[ $FZF_TOTAL_COUNT -eq 1 ]] && echo "become:nvim {}"' \
        --preview 'bat --color=always {}'
}

Also, splitting it into two --binds didn't work either.

Although playing around with it more, one also isn't doing it (I must have not tested calling the function with a query earlier). The one binding is only triggering when I filter within fzf, not when the --select-1 triggers.

[elazar125]

In case this helps at all:

$ fzf --version
0.52.0 (bcda25a5)

[junegunn]

one and unbind strategy works just fine.

find_file_and_edit() {
  fzf \
      --sync \
      --multi \
      --query "$*" \
      --bind 'change:unbind(one),enter:become("$EDITOR" {+}),one:become("$EDITOR" {})' \
      --preview 'bat --color=always {}'
}

---

Your command has some errors.

• You should remove --select-1 since you're relying on the event binding mechanism within the finder
• You should use result event instead of load event because you're interested in the "result" for your initial --query.
  • Loading and matching runs asynchronously in parallel, so load event doesn't guarantee that you have the result for your query
• Use FZF_MATCH_COUNT instead of FZF_TOTAL_COUNT to see the number of matches for your initial --query
• {} needs escaping because the path can contain double-quotes
• You still need to "unbind" result event.
• In case your source program takes a while to populate the list, use --sync option. e.g. (sleep 1; ls) | find_file_and_edit

find_file_and_edit() {
  fzf \
      --sync \
      --multi \
      --query "$*" \
      --bind 'change:unbind(result),enter:become("$EDITOR" {+}),result:transform:[[ $FZF_MATCH_COUNT -eq 1 ]] && echo "become:\"\$EDITOR\" \{}"' \
      --preview 'bat --color=always {}'
}

Same thing, but worse.

[elazar125]

Looks like removing --select-1 was the missing ingredient, using only one with change:unbind:one is working now. Thank you!