Feature: Enable to use builtin walker in reload function or create new reload-walker function

[petersladek]

I am using ctrt+t shell integration and in FZF_CTRL_T_OPTS I have set up reload function to switch between Directories and Files. Right now, I have to use custom command (e.g. fd) to list directories/files in reload functions, but I would prefer to use built-in walker as it is much faster! It would be great if I could use built-in walker with arguments --walker or --walker-skip in reload() function, or bind new function e.g. reload-walker().

[junegunn]

I've given some thought about that, but it's not clear how we can support three walker options in a single "reload-walker" action. A workaround currently available is to start fzf with --filter '' so that it immediately prints the candidates from its walker.

fzf --bind 'ctrl-d:reload:</dev/tty fzf --filter "" --walker dir' \
    --bind 'ctrl-f:reload:</dev/tty fzf --filter "" --walker file'

(</dev/tty is needed to trigger walker)

[petersladek]

Will try the workaround thanks!

[junegunn]

Admittedly, --filter '' < /dev/tty isn't pretty. Maybe we should provide a shortcut option for this.

# Start the built-in walker and print the list
fzf --walk

Or for better flexibility, we could just add --walker-force to replace < /dev/tty.

# Start built-in walker and print the list
fzf --walker-force --filter ''

# You can use --walker-force to use built-in walker even when
# * $FZF_DEFAULT_COMMAND is set
# * Standard input is not a tty device
export FZF_DEFAULT_COMMAND=ls
whoami | fzf --walker-force

These are just some initial ideas. I'm not going to rush into a decision.

[DanSM-5]

I found this by searching how to reload using the builtin walker.

The option --filter '' < /dev/tty is not very portable if I want to run the same fzf command in something like windows (or at least I don't know an equivalent in something like powershell).

I wonder if this could be achieve with a simple walker action in the format reload-walker(type) where type is the walker option you want or maybe external command that return the string of the type of walker similar to how transform works reload-walker:echo 'dir'.

E.g.

fzf --walker=file --bind 'ctrl-a:reload-walker(dir)'