From 01290a5a1c9230c48b9d5ca225f9a8386584f77a Mon Sep 17 00:00:00 2001
From: Nicholas Johnson <nick@nicholasjohnson.ch>
Date: Fri, 16 Dec 2022 00:00:00 +0000
Subject: Add passage support

---
 otp.bash | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/otp.bash b/otp.bash
index a0688d2..ca7b841 100755
--- a/otp.bash
+++ b/otp.bash
@@ -20,6 +20,9 @@ VERSION="1.1.2"
 OATH=$(which oathtool)
 OTPTOOL=$(which otptool)
 
+[[ "$PROGRAM" == "passage" ]] && PASSAGE=true
+[[ $PASSAGE ]] && GPG=age && ext=age || ext=gpg
+
 ## source:  https://gist.github.com/cdown/1163649
 urlencode() {
   local l=${#1}
@@ -137,9 +140,10 @@ otp_insert() {
   set_git "$passfile"
 
   mkdir -p -v "$PREFIX/$(dirname "$path")"
-  set_gpg_recipients "$(dirname "$path")"
+  [[ $PASSAGE ]] || set_gpg_recipients "$(dirname "$path")"
 
-  echo "$contents" | $GPG -e "${GPG_RECIPIENT_ARGS[@]}" -o "$passfile" "${GPG_OPTS[@]}" || die "OTP secret encryption aborted."
+  [[ $PASSAGE ]] && local age_opts=("-i" "$PASSAGE_IDENTITIES_FILE")
+  echo "$contents" | $GPG "${age_opts[@]}" -e "${GPG_RECIPIENT_ARGS[@]}" -o "$passfile" "${GPG_OPTS[@]}" || die "OTP secret encryption aborted."
 
   if [[ "$quiet" -eq 1 ]]; then
     git_add_file "$passfile" "$message" 1>/dev/null
@@ -243,7 +247,7 @@ cmd_otp_insert() {
     yesno "Insert into $path?"
   fi
 
-  local passfile="$PREFIX/$path.gpg"
+  local passfile="$PREFIX/$path.$ext"
   [[ $force -eq 0 && -e $passfile ]] && yesno "An entry already exists for $path. Overwrite it?"
 
   otp_insert "$path" "$passfile" "$otp_uri" "Add OTP secret for $path to store."
@@ -268,16 +272,17 @@ cmd_otp_append() {
   local uri
   local path="${1%/}"
   local prompt="$path"
-  local passfile="$PREFIX/$path.gpg"
+  local passfile="$PREFIX/$path.$ext"
 
   [[ -f $passfile ]] || die "Passfile not found"
 
+  [[ $PASSAGE ]] && local age_opts=("-i" "$PASSAGE_IDENTITIES_FILE")
   local existing contents=""
   while IFS= read -r line || [ -n "$line" ]; do
     [[ -z "$existing" && "$line" == otpauth://* ]] && existing="$line"
     [[ -n "$contents" ]] && contents+=$'\n'
     contents+="$line"
-  done < <($GPG -d "${GPG_OPTS[@]}" "$passfile")
+  done < <($GPG "${age_opts[@]}" -d "${GPG_OPTS[@]}" "$passfile")
 
   [[ -n "$existing" ]] && yesno "An OTP secret already exists for $path. Overwrite it?"
 
@@ -329,11 +334,12 @@ cmd_otp_code() {
   [[ $err -ne 0 || $# -ne 1 ]] && die "Usage: $PROGRAM $COMMAND [--clip,-c] [--quiet,-q] pass-name"
 
   local path="${1%/}"
-  local passfile="$PREFIX/$path.gpg"
+  local passfile="$PREFIX/$path.$ext"
   check_sneaky_paths "$path"
   [[ ! -f $passfile ]] && die "$path: passfile not found."
 
-  contents=$($GPG -d "${GPG_OPTS[@]}" "$passfile")
+  [[ $PASSAGE ]] && local age_opts=("-i" "$PASSAGE_IDENTITIES_FILE")
+  contents=$($GPG "${age_opts[@]}" -d "${GPG_OPTS[@]}" "$passfile")
   while read -r line; do
     if [[ "$line" == otpauth://* ]]; then
       local uri="$line"
@@ -401,11 +407,12 @@ cmd_otp_uri() {
   [[ $err -ne 0 || $# -ne 1 ]] && die "Usage: $PROGRAM $COMMAND uri [--clip,-c | --qrcode,-q] pass-name"
 
   local path="$1"
-  local passfile="$PREFIX/$path.gpg"
+  local passfile="$PREFIX/$path.$ext"
   check_sneaky_paths "$path"
   [[ ! -f $passfile ]] && die "Passfile not found"
 
-  contents=$($GPG -d "${GPG_OPTS[@]}" "$passfile")
+  [[ $PASSAGE ]] && local age_opts=("-i" "$PASSAGE_IDENTITIES_FILE")
+  contents=$($GPG "${age_opts[@]}" -d "${GPG_OPTS[@]}" "$passfile")
   while read -r line; do
     if [[ "$line" == otpauth://* ]]; then
       otp_parse_uri "$line"
-- 
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