don’t open key if already opened

gpgtool

@@ -156,9 +156,14 @@ open () {
     key=$(ls ${keypath}/${id}/*.key)
     [[ $? != 0 ]] && \
       echo "${id} does not seem to be a valid key folder, aborting …" && exit 1
+    if [[ -f "${tempdir}/gpghome/private-keys-v1.d/$(basename ${key})" ]]
+    then
+      echo "Key ${id} already opened."
+    else
       gpg --homedir "${tempdir}/gpghome" --import-options keep-ownertrust \
         --import "${keypath}/${id}/${id}.private.asc"
       [[ $? == 0 ]] && ln -sf ${key} ${tempdir}/gpghome/private-keys-v1.d/
+    fi
   done
 }