Fix bin/fzf-preview.sh to make image preview work on ghostty terminal #4232
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Fix bin/fzf-preview.sh so that image preview works on ghostty terminal.
Issue
Despite ghostty supporting the Kitten graphics protocol, the image preview does not work even if
kitten
is installed on the system because the script only checks for theKITTY_WINDOW_ID
environment variable, which is unset in ghostty terminal sessions.So, when trying to preview images in ghostty, it merely prints the file type:
Solution
Check if
kitten
is installed on the system usingcommand -v kitten
.See: https://sw.kovidgoyal.net/kitty/kittens_intro/