xclip -loops for pass

[Dominique Martinet]

martin f. krafft wrote on Wed, Apr 23, 2025 at 07:21:54PM +0200:
> And this made me realise: `pass` uses `xclip` internally, right? Why the 45
> second wait and overwrite? `xclip -loops 1` makes the password available
> once exactly, and after a paste, the clipboard is empty.

That's a great idea, I've been using a local extension to copy arbitrary
lines to clipboard (e.g. with '<password>\nid: <id>' I'd be able to get
the id on clipboard), but getting both in a single command is even
better -- I've updated it for that so now I can request `id ''` and get
both one after another.

I'm not publishing this anywhere because lazy but feel free to use that
code, pass is easily extensible so it's probably better as an extension
than part of the core.
(it's hardcoded wl-copy, the --sensitive flag is not part of any release
yet and it is probably required if you have clipboard managers so YMMV)

Cheers,
-- 
Dominique Martinet | Asmadeus
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#!/bin/bash
# License: WTFPL

### Allow copying arbitrary line to clipboard

### install
# - copy to ${PASSWORD_STORE_DIR:-~/.password-store}/.extensions/cl.bash
# - enable (in bashrc or equivalent):
# export PASSWORD_STORE_ENABLE_EXTENSIONS=true
# - optionally bash completion:
# export PASSWORD_STORE_EXTENSION_COMMANDS+=(cl)
# __password_store_extension_complete_cl() { [[ $COMP_CWORD = 2 ]] && _pass_complete_entries; }
###

clip_once() {
	echo "Copying $2 to clipboard. Will clear after one paste"
	echo -n "$1" | wl-copy --sensitive --paste-once --foreground
}

cmd_cl_copy() {
	local pass=$1
	shift
	local full found

	if [ "$#" = 0 ]; then
		set -- ''
	fi

	full=$(cmd_show "$pass") || exit
	for line; do
		if [ -n "$line" ]; then
			found=$(printf "%s\n" "$full" | sed -n -e 's/ #.*//' -e "s/^${line}[:=]\s*//p")
		else
			found=$(printf "%s\n" "$full" | head -n 1)
		fi
		if [ -z "$found" ]; then
			printf "%s\n" "$line not found in pass:"
			printf "%s\n" "$full" | sed -e 's/^/  /'
			exit 1
		fi
		clip_once "$found" "'$pass $line'"
	done
}

cmd_cl_help() {
	cat <<-EOF
	Usage: $PROGRAM cl pass-entry [key]
	    Copy keyed line(s) to clipboard. If no key same as 'pass show -c'
EOF
	exit
}


case "$1" in
--help|-help|-h) cmd_cl_help;;
esac

cmd_cl_copy "$@"