neopassmenu/neopassmenu.sh

#!/usr/bin/env sh

multi=false
clipboard=false
file=""
dir=""
dmenu="${DMENU_COMMAND:-dmenu}"

usage="$(printf "USAGE:\nneopassmenu [OPTS] [Pass Entry]\n\nOptions:\n-c\t\tCopy to clipboard instead of printing to stdout\n-m\t\tSelect a specific line from a multiline file\n-h\\t\tPrint usage information\n\nCONFIGURATION:\nEnvironement variables:\nDMENU_COMMAND\tSpecify dmenu command (default: dmenu)")"

cd "${PASSWORD_STORE_DIR:-"$HOME/.password-store"}" || exit 2

while [ "$#" -gt 0 ]; do
	case "$1" in
		-c)
			clipboard=true
			shift
			;;
		-m)
			multi=true
			shift
			;;
		-h)
			echo "$usage"
			exit 0
			;;
		*)
			if [ -f "$1" ] || [ -f "${1}.gpg" ] || [ -d "$1" ] ; then
				file="$1"
				shift
			elif [ -d "$1" ]; then
				dir="$1"
				shift
			else
				echo "$usage"
				exit 1
			fi
			;;
	esac
done

while true; do
	file="$(printf "..\n%s" "$(find "./$dir" -maxdepth 1)" | sed -e 's#^'"./$dir"'##;s#^/##;s/.gpg$//' -e '/^$/d; /^.gpg-id$/d; /^.git\(attributes\)\{0,1\}$/d' | $dmenu)"
	if [ -z "$dir" ]; then
		newdir="$file"
	else
		newdir="${dir%/}/$file"
	fi
	if [ -z "$file" ]; then
		exit 127
	elif [ "$file" = ".." ]; then
		dir="${dir%/}"
		if echo "$dir" | grep -q "/"; then
			dir="${dir%/*}"
		else
			dir=""
		fi
	elif [ -d "$newdir" ]; then
		dir="$newdir"
	elif [ -f "$newdir" ] || [ -f "${newdir}.gpg" ]; then
		file="$newdir"
		break
	else
		break
	fi
done

if ! [ -f "$file" ] && ! [ -f "${file}.gpg" ]; then
	exit 127
fi

if $clipboard && ! $multi; then
	pass -c "$file"
	exit 0
fi

password_lines="$(pass "$file")"

if ! $multi; then
	echo "$password_lines"
	exit 0
fi

password="$(echo "$password_lines" | sed '{ h; s/^.$//; s/^..//; s/./*/g; x; s/^\(..\).*/\1/; G; s/\n//; }' | $dmenu)"
# Sed script:
# Copy pattern space (line) to hold space. Pattern space: Foo Hold space: Foo
# If the patter space is a single character, delete the character (prevents "a" to be outputted as "aa")
# Delete the first two characters of the patter space. Pattern Space: o; Hold space: Foo
# Replace all the characters in the pattern space with the literal "*". Pattern Space: *; Hold space: Foo
# Swap pattern space with hold space. Pattern Space: Foo Hold space: *
# Match the first two characters of the pattern space, then all the rest of the characters
# substitute with the whole match (entire line) with the first submatch (first 2 characters). Pattern Space: Fo Hold Space: *
# Append newline followed by the Hold Space to the Pattern Space. Pattern Space: Fo\n* Hold Space: *
# Remove the (supposedly only) newline from the pattern space. Pattern Space: Fo* Hold Space: *
# Sed automatically prints the pattern space at the end of a script (unless the -n option is given). Output: Fo*

password="$(echo "$password_lines" | grep -xE "$(echo "$password" | sed 'y/*/./' )")"

if "$clipboard"; then
	echo "$password" | xclip -selection clipboard -i -
	exit 0
fi

echo "$password"