Implement "list" command

Signed-off-by: Knut Ahlers <knut@ahlers.me>

bin/docker-credential-vault

@@ -49,6 +49,16 @@ function hash_hostname() {
   echo "$1" | md5sum | cut -d ' ' -f 1
 }
 
+function list() {
+  local creds="{}"
+
+  for key in $(vault list -format=json secret/docker-credential | jq -r '.[]'); do
+    creds="$(vault read -field=data -format=json "${PREFIX}/${key}" | jq -c "${creds} + {(.ServerURL): .Username}")"
+  done
+
+  echo "${creds}"
+}
+
 function log() {
   [ $NO_LOG -eq 0 ] || return 0
   echo "[$(date +%H:%M:%S)][docker-credential-vault] $@" >&2
@@ -62,6 +72,7 @@ function main() {
   case "${1:-}" in
   get) get ;;
   erase) erase ;;
+  list) list ;;
   store) store ;;
   *)
     echo "$(basename $0): Supported are only: get, erase, store (called '${1:-}')" >&2