support change account conf from env

acme.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-VER=2.6.8
+VER=2.6.9
 
 PROJECT_NAME="acme.sh"
 
@@ -1847,6 +1847,24 @@ _saveaccountconf() {
   _save_conf "$ACCOUNT_CONF_PATH" "$1" "$2"
 }
 
+#key  value
+_saveaccountconf_mutable() {
+  _save_conf "$ACCOUNT_CONF_PATH" "SAVED_$1" "$2"
+  #remove later
+  _clearaccountconf "$1"
+}
+
+#key
+_readaccountconf() {
+  _read_conf "$ACCOUNT_CONF_PATH" "$1"
+}
+
+#key
+_readaccountconf_mutable() {
+  _rac_key="$1"
+  _readaccountconf "SAVED_$_rac_key"
+}
+
 #_clearaccountconf   key
 _clearaccountconf() {
   _clear_conf "$ACCOUNT_CONF_PATH" "$1"

dnsapi/dns_cf.sh

@@ -14,6 +14,8 @@ dns_cf_add() {
   fulldomain=$1
   txtvalue=$2
 
+  CF_Key="${CF_Key:-$(_readaccountconf_mutable CF_Key )}"
+  CF_Email="${CF_Email:-$(_readaccountconf_mutable CF_Email )}"
   if [ -z "$CF_Key" ] || [ -z "$CF_Email" ]; then
     CF_Key=""
     CF_Email=""
@@ -29,8 +31,8 @@ dns_cf_add() {
   fi
 
   #save the api key and email to the account conf file.
-  _saveaccountconf CF_Key "$CF_Key"
-  _saveaccountconf CF_Email "$CF_Email"
+  _saveaccountconf_mutable CF_Key "$CF_Key"
+  _saveaccountconf_mutable CF_Email "$CF_Email"
 
   _debug "First detect the root zone"
   if ! _get_root "$fulldomain"; then