Script to copy username/password/TOTP to clipboard from dmenu-selected entry in Password Store

passmenu.sh

#!/bin/bash

# Adapted from https://git.zx2c4.com/password-store/tree/contrib/dmenu/passmenu
# at 0b2f803fe61992.

shopt -s nullglob globstar

mode=password
case "$1" in
    '--username')
        mode=username
        shift
        ;;
    '--totp')
        mode=totp
        shift
        ;;
    '--password')
        shift
        ;;
esac

prefix=${PASSWORD_STORE_DIR:-~/.password-store}
mapfile -t password_files < <(find "$prefix" -name '*.gpg' -exec stat -c '%X {}' '{}' \; | sort -n -r | cut -d' ' -f2-)
password_files=( "${password_files[@]#"$prefix"/}" )
password_files=( "${password_files[@]%.gpg}" )

password=$(printf '%s\n' "${password_files[@]}" | dmenu "$@")

[[ -n $password ]] || exit

data="$(pass show "$password" 2>/dev/null)"

[[ -n "$data" ]] || exit

clip() {
    printf '%s' "$1" | xsel -i -b -t 10
}

case $mode in
    username)
        username=$(<<<"$data" tail -n +2 | sed -ne '/^username: /I s/^username: // p')
        clip "$username"
        ;;
    password)
        pw=$(<<<"$data" head -n 1)
        clip "$pw"
        ;;
    totp)
        totp_key=$(<<<"$data" tail -n +2 | grep -o 'otpauth:[^\b]*' | grep -o 'secret=[[:alnum:]]*' | cut -d= -f2)
        clip "$(oathtool --totp -b "$totp_key")"
        ;;
esac