arch-config/config/fish/functions/_fzf_preview_file.fish

# helper function for _fzf_search_directory and _fzf_search_git_status
function _fzf_preview_file --description "Print a preview for the given file based on its file type."
    # because there's no way to guarantee that _fzf_search_directory passes the path to _fzf_preview_file
    # as one argument, we collect all the arguments into one single variable and treat that as the path
    set -f file_path $argv

    if test -L "$file_path" # symlink
        # notify user and recurse on the target of the symlink, which can be any of these file types
        set -l target_path (realpath "$file_path")

        set_color yellow
        echo "'$file_path' is a symlink to '$target_path'."
        set_color normal

        _fzf_preview_file "$target_path"
    else if test -f "$file_path" # regular file
        if set --query fzf_preview_file_cmd
            # need to escape quotes to make sure eval receives file_path as a single arg
            eval "$fzf_preview_file_cmd '$file_path'"
        else
            bat --style=numbers --color=always "$file_path"
        end
    else if test -d "$file_path" # directory
        if set --query fzf_preview_dir_cmd
            # see above
            eval "$fzf_preview_dir_cmd '$file_path'"
        else
            # -A list hidden files as well, except for . and ..
            # -F helps classify files by appending symbols after the file name
            command ls -A -F "$file_path"
        end
    else if test -c "$file_path"
        _fzf_report_file_type "$file_path" "character device file"
    else if test -b "$file_path"
        _fzf_report_file_type "$file_path" "block device file"
    else if test -S "$file_path"
        _fzf_report_file_type "$file_path" socket
    else if test -p "$file_path"
        _fzf_report_file_type "$file_path" "named pipe"
    else
        echo "$file_path doesn't exist." >&2
    end
end