add unix pass duplicate password use script

1 files changed, 46 insertions, 0 deletions

diff --git a/.local/share/pass-extensions/duplicates.bash b/.local/share/pass-extensions/duplicates.bash
new file mode 100755
index 0000000..57fdbe0
--- /dev/null
+++ b/.local/share/pass-extensions/duplicates.bash
@@ -0,0 +1,46 @@
+#!/bin/bash
+cd "${PASSWORD_STORE_DIR-$HOME/.password-store}" || exit 1
+
+declare -A dupe_tally dupe_map
+
+pass_names="$(\
+	find . -type d -name '.git' -prune -o -name '*.gpg' -type f -print |\
+	cut -c3- | rev | cut -c5- | rev)"
+
+pass_count="$(echo "$pass_names" | wc -l)"
+if [ "$pass_count" -gt 10 ] ; then
+	cat << EOF >&2
+pass-duplicates needs to decrypt all your passwords one-by-one to cross-match
+them. This is all done in-memory, and nothing is saved to disk. You appear to
+have $pass_count passwords, so this may take some time...
+
+EOF
+fi
+
+while read pass_name ; do
+	hash="$(pass show "$pass_name" | head -n1 | sha1sum | cut -c1-40)"
+
+	dupe_map["$pass_name"]="$hash"
+	dupe_tally["$hash"]=$(( ${dupe_tally["$hash"]} + 1 ))
+done < <(echo "$pass_names")
+
+duplicates=0
+
+for talley_key in "${!dupe_tally[@]}" ; do
+	[ "${dupe_tally["$talley_key"]}" -le 1 ] && continue;
+	duplicates=$(( $duplicates + 1 ))
+
+	echo "same password:"
+	for pass_name in "${!dupe_map[@]}" ; do
+		[ "${dupe_map["$pass_name"]}" != "$talley_key" ] && continue;
+		echo "- $pass_name"
+	done
+	echo
+done
+
+echo "summary:"
+if [ $duplicates -eq 0 ] ; then
+	echo "- no duplicates"
+else
+	echo "- found $duplicates password(s) that were used more than once"
+fi