paste with sudo

[og900aero]

I want to use the following alternative paste with sudo feature:

cmd alt-paste &{{
    if [ "$lf_user_sudo_mode" = "true" ]; then
		mode=$(cat ~/.local/share/lf/files | sed -n '1p')
		while IFS= read -r file; do
			[ -e "$file" ] && lf -remote "send toggle \"$file\""
		done < ~/.local/share/lf/files
	    lf -remote "send $id clear"
	    IFS="$(printf '\n\t')"
		case "$mode" in
			copy)
	    		sudo -A cp -r -- $fs .
	    		lf -remote "send $id %echo '\e[7;32mCopied (root) successfully\e[0m'"
				;;
			move)
	    		sudo -A mv -n -- $fs .
	    		lf -remote "send $id %echo '\e[7;32mMoved (root) successfully\e[0m'"
				;;
		esac
	    lf -remote "send $id :unselect; reload"
    else
    	lf -remote "send $id :paste; clear; reload"
    fi
}}

The sudo part works when separated into individual elements, but when combined, it only converts the copy/move selections into simple selections. When I restart the command, it performs the copy/move as well.
Why is this happening?

[DusanLesan]

That is likely due to the async nature of lf. You send toggle commands and expect files to be available in fs but they are likely not yet set. I think you should remove logic that uses fs and rely entirely on the files list

[DusanLesan]

Maybe changing copy) cmd=(cp -r); msg="Copied" to copy) cmd="cp"; args="-r"; msg="Copied"? And later using args

map P &{{
	if [ "$lf_user_sudo_mode" = "true" ]; then
		mode=$(cat ~/.local/share/lf/files | sed -n '1p')
		case "$mode" in
			copy) cmd="cp"; args="-r"; msg="Copied" ;;
			move) cmd="mv"; args="-n"; msg="Moved" ;;
		esac

		fail=0
		while IFS= read -r file; do
			[ -e "$file" ] || continue
			sudo -A $cmd $args -- "$file" . || ((fail++))
		done < ~/.local/share/lf/files

		if ((fail == 0)); then
			lf -remote "send $id %echo '\e[7;32mMoved (root) successfully\e[0m'"
		else
			lf -remote "send $id %echo '\e[7;32m$msg (root) failed ($fail)\e[0m'"
		fi

	else
		lf -remote "send $id :paste; clear; reload"
	fi
}}

[og900aero]

Almost right. Unfortunately, the sudo -A line is structured in such a way that it passes the files to rofi (where it asks for the sudo password). So I modified the script:
(Sudo was removed from the while branch, but because of this, sudo -A -v is now required.)

cmd alt-paste &{{
	if [ "$lf_user_sudo_mode" = "true" ]; then
		mode=$(cat ~/.local/share/lf/files | sed -n '1p')
		case "$mode" in
			copy) cmd="cp"; args="-r" ;;
			move) cmd="mv"; args="-n" ;;
		esac
		sudo -A -v
		while IFS= read -r file; do
			[ -e "$file" ] || continue
			$cmd $args -- "$file" .
		done < ~/.local/share/lf/files
    	lf -remote "send $id :clear; reload"
	else
		lf -remote "send $id :paste; clear; reload"
	fi
}}

[og900aero]

No, it's still not good. The sudo -A -v command is on a separate line, it doesn't give real root rights. In fact, the copying will be a different thread, so it doesn't work with root rights. Still, sudo -A and the command should be on one line, but in your example, for some reason it put the files to be copied on the password prompt, and thus didn't execute the copy.

[DusanLesan]

You can set custom prompt into sudo with -p arg

[og900aero]

The -p option cannot be used because it would require the password to be requested within lf at the bottom (e.g., %echo...). But I can't send sudo there. That's why there is the -A option, which allows you to pass it to an external application, so you can use rofi or yad to display a window and ask for the password, for example. In my flawed solution, it asks for the password normally and does not include the selected files, but the working version you wrote sends the selected files for some reason.
I am increasingly feeling that this cannot be achieved with an externally written script, meaning that I cannot use lf for work because my work often requires root access, but not continuously, so that there is no accidental copying or deletion. lf is perfect for home use, I just thought I would use it for work too, but unfortunately I can't. This has now become very complicated.

[og900aero]

I'm temporarily using your script, but not with cmd alt-paste &{{, but with cmd alt-paste ${{ mode, and instead of sudo -A, just sudo, so at least it doesn't transfer the files to be copied/moved. I'll see how useful it is for my work. Thank you for your help and patience.

cmd alt-paste ${{
	if [ "$lf_user_sudo_mode" = "true" ]; then
		mode=$(cat ~/.local/share/lf/files | sed -n '1p')
		case "$mode" in
			copy) cmd="cp"; args="-r" ;;
			move) cmd="mv"; args="-n" ;;
		esac
		while IFS= read -r file; do
			[ -e "$file" ] || continue
			sudo $cmd $args -- "$file" .
		done < ~/.local/share/lf/files
    	lf -remote "send $id :clear; reload"
	else
		lf -remote "send $id :paste; clear; reload"
	fi
}}