Consolidation of configuration variables

src/freedombone-config

             esac
         done
     fi
-    save_configuration_file
+    save_configuration_values
 }
 
 function choose_default_domain_name {
             fi
         done
     fi
-    save_configuration_file
+    save_configuration_values
 }
 
 function choose_static_ip {
             esac
             LOCAL_NETWORK_STATIC_IP_ADDRESS=$(cat $data | sed -n 1p)
             ROUTER_IP_ADDRESS=$(cat $data | sed -n 2p)
-            save_configuration_file
+            save_configuration_values
         fi
     fi
 }
             14) DDNS_PROVIDER="default@changeip.com";;
             255) exit 1;;
         esac
-        save_configuration_file
+        save_configuration_values
 
         valid_ddns_username=
         while [ ! $valid_ddns_username ]
                 255) exit 1;;
             esac
         done
-        save_configuration_file
+        save_configuration_values
 
         valid_ddns_password=
         while [ ! $valid_ddns_password ]
                 DDNS_PASSWORD=""
             fi
         done
-        save_configuration_file
+        save_configuration_values
     fi
 }
 
                 ;;
             255) exit 1;;
         esac
-        save_configuration_file
+        save_configuration_values
     else
         # as defaults for a minimal install process these settings are debatable
         NAMESERVER1='85.214.73.63'
             49) DEBIAN_REPO='ftp.us.debian.org';;
             255) exit 1;;
         esac
-        save_configuration_file
+        save_configuration_values
     else
         DEBIAN_REPO='ftp.de.debian.org'
     fi
         else
             HWRNG_TYPE="beaglebone"
         fi
-        save_configuration_file
+        save_configuration_values
     fi
 }
 
             0) ENABLE_SOCIAL_KEY_MANAGEMENT="yes";;
             255) exit 1;;
         esac
-        save_configuration_file
+        save_configuration_values
     else
         # enable for the minimal case
         ENABLE_SOCIAL_KEY_MANAGEMENT="yes"
         if [[ $INSTALLING_ON_BBB == "yes" ]]; then
             USB_DRIVE=/dev/sda1
         fi
-        save_configuration_file
+        save_configuration_values
     fi
 }
 
         echo $"The directory /home/$MY_USERNAME does not exist"
         exit 6437
     fi
-    save_configuration_file
+    save_configuration_values
 }
 
 function choose_full_name {
             255) exit 1;;
         esac
     done
-    save_configuration_file
+    save_configuration_values
 }
 
 function choose_system_variant {
                             27 40 20 $varslist)
     variant_choice=$((variant_choice - 1))
     export SYSTEM_TYPE=${variants_list[$variant_choice]}
-    save_configuration_file
+    save_configuration_values
     write_config_param "SYSTEM_TYPE" "$SYSTEM_TYPE"
 }
 
     shift
 done
 
-function save_configuration_file {
-    if [ ! $CONFIGURATION_FILE ]; then
-        CONFIGURATION_FILE='freedombone.cfg'
-    fi
-
-    save_variables=(MY_USERNAME
-                    DEFAULT_DOMAIN_NAME
-                    DEFAULT_DOMAIN_CODE
-                    SYSTEM_TYPE
-                    INSTALLING_ON_BBB
-                    USB_DRIVE
-                    DDNS_PROVIDER
-                    DDNS_USERNAME
-                    DDNS_PASSWORD
-                    DEFAULT_LANGUAGE
-                    MY_NAME
-                    MY_EMAIL_ADDRESS
-                    LOCAL_NETWORK_STATIC_IP_ADDRESS
-                    ROUTER_IP_ADDRESS
-                    ENABLE_CJDNS
-                    ENABLE_BATMAN
-                    ENABLE_BABEL
-                    DEBIAN_REPO
-                    NAMESERVER1
-                    NAMESERVER2
-                    HWRNG_TYPE
-                    ENABLE_SOCIAL_KEY_MANAGEMENT
-                    WIFI_SSID
-                    WIFI_INTERFACE
-                    WIFI_TYPE
-                    WIFI_PASSPHRASE
-                    WIFI_HOTSPOT
-                    BATMAN_CELLID
-                    WIFI_CHANNEL
-                    DH_KEYLENGTH
-                    ONION_ONLY
-                    FRIENDS_MIRRORS_SERVER
-                    FRIENDS_MIRRORS_SSH_PORT
-                    FRIENDS_MIRRORS_PASSWORD
-                    MY_MIRRORS_PASSWORD)
-
-    for v in "${save_variables[@]}"
-    do
-        write_config_param "$v" "${!v}"
-    done
-}
-
 # test a domain name to see if it's valid
 function validate_domain_name {
     # count the number of dots in the domain name
         dialog --title $"Main Repository" \
                --msgbox $"Main repository set to $FRIENDS_MIRRORS_SERVER" 6 60
     fi
-    save_configuration_file
+    save_configuration_values
 }
 
 function interactive_select_language {
         67) DEFAULT_LANGUAGE='uk_UA.UTF-8';;
         68) DEFAULT_LANGUAGE='vi_VN.UTF-8';;
     esac
-    save_configuration_file
+    save_configuration_values
 
     update-locale LANG=${DEFAULT_LANGUAGE}
     update-locale LANGUAGE=${DEFAULT_LANGUAGE}
 read_configuration_values
 interactive_config
 show_result
+
 exit 0

src/freedombone-utils-config

 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+configuration_variables=(FRIENDS_MIRRORS_SERVER
+                         FRIENDS_MIRRORS_SSH_PORT
+                         FRIENDS_MIRRORS_PASSWORD
+                         MY_MIRRORS_PASSWORD
+                         SYSTEM_TYPE
+                         SSL_PROTOCOLS
+                         SSL_CIPHERS
+                         SSH_CIPHERS
+                         SSH_MACS
+                         SSH_KEX
+                         SSH_HOST_KEY_ALGORITHMS
+                         SSH_PASSWORDS
+                         REFRESH_GPG_KEYS_HOURS
+                         GPG_KEYSERVER
+                         ENABLE_SOCIAL_KEY_MANAGEMENT
+                         MY_USERNAME
+                         DOMAIN_NAME
+                         DEFAULT_DOMAIN_NAME
+                         DEFAULT_DOMAIN_CODE
+                         NAMESERVER1
+                         NAMESERVER2
+                         GET_IP_ADDRESS_URL
+                         DDNS_PROVIDER
+                         DDNS_USERNAME
+                         DDNS_PASSWORD
+                         LOCAL_NETWORK_STATIC_IP_ADDRESS
+                         ROUTER_IP_ADDRESS
+                         CPU_CORES
+                         WEBSERVER_LOG_LEVEL
+                         ROUTE_THROUGH_TOR
+                         MY_NAME
+                         MY_EMAIL_ADDRESS
+                         INSTALLING_ON_BBB
+                         SSH_PORT
+                         INSTALLED_WITHIN_DOCKER
+                         GPG_ENCRYPT_STORED_EMAIL
+                         MY_GPG_PUBLIC_KEY
+                         MY_GPG_PRIVATE_KEY
+                         MY_GPG_PUBLIC_KEY_ID
+                         USB_DRIVE
+                         MAX_PHP_MEMORY
+                         TLS_TIME_SOURCE1
+                         TLS_TIME_SOURCE2
+                         ONION_ONLY
+                         DEFAULT_LANGUAGE
+                         MINIMAL_INSTALL
+                         LETSENCRYPT_SERVER
+                         WIFI_INTERFACE
+                         WIFI_SSID
+                         WIFI_TYPE
+                         WIFI_PASSPHRASE
+                         WIFI_HOTSPOT
+                         WIFI_NETWORKS_FILE
+                         DEFAULT_SEARCH
+                         SEARCH_ENGINE_PASSWORD
+                         PROJECT_WEBSITE
+                         PROJECT_REPO
+                         GPGIT_REPO
+                         GPGIT_COMMIT
+                         NGINX_ENSITE_REPO
+                         NGINX_ENSITE_REPO
+                         NGINX_ENSITE_COMMIT
+                         CLEANUP_MAILDIR_COMMIT
+                         CLEANUP_MAILDIR_REPO
+                         INADYN_REPO
+                         INADYN_COMMIT
+                         DH_KEYLENGTH
+                         WIFI_CHANNEL
+                         IPV6_NETWORK
+                         HWRNG_TYPE
+                         ENABLE_BABEL
+                         ENABLE_BATMAN
+                         ENABLE_CJDNS
+                         PUBLIC_MAILING_LIST)
+
 function read_config_param {
     param_name="$1"
 
     fi
 }
 
+function save_configuration_values {
+    if [ ! $CONFIGURATION_FILE ]; then
+        CONFIGURATION_FILE='freedombone.cfg'
+    fi
+
+    for v in "${configuration_variables[@]}"
+    do
+        write_config_param "$v" "${!v}"
+    done
+}
+
 function read_configuration_values {
     # if not installing on a Beaglebone then use sdb as the USB drive by default
     if [ ! $INSTALLING_ON_BBB ]; then
             cp $CONFIGURATION_FILE /root/${PROJECT_NAME}.cfg
         fi
 
-        read_config_variables=(FRIENDS_MIRRORS_SERVER
-                               FRIENDS_MIRRORS_SSH_PORT
-                               FRIENDS_MIRRORS_PASSWORD
-                               MY_MIRRORS_PASSWORD
-                               SYSTEM_TYPE
-                               SSL_PROTOCOLS
-                               SSL_CIPHERS
-                               SSH_CIPHERS
-                               SSH_MACS
-                               SSH_KEX
-                               SSH_HOST_KEY_ALGORITHMS
-                               SSH_PASSWORDS
-                               REFRESH_GPG_KEYS_HOURS
-                               GPG_KEYSERVER
-                               ENABLE_SOCIAL_KEY_MANAGEMENT
-                               MY_USERNAME
-                               DOMAIN_NAME
-                               DEFAULT_DOMAIN_NAME
-                               DEFAULT_DOMAIN_CODE
-                               NAMESERVER1
-                               NAMESERVER2
-                               GET_IP_ADDRESS_URL
-                               DDNS_PROVIDER
-                               DDNS_USERNAME
-                               DDNS_PASSWORD
-                               LOCAL_NETWORK_STATIC_IP_ADDRESS
-                               ROUTER_IP_ADDRESS
-                               CPU_CORES
-                               WEBSERVER_LOG_LEVEL
-                               ROUTE_THROUGH_TOR
-                               MY_NAME
-                               MY_EMAIL_ADDRESS
-                               INSTALLING_ON_BBB
-                               SSH_PORT
-                               INSTALLED_WITHIN_DOCKER
-                               GPG_ENCRYPT_STORED_EMAIL
-                               MY_GPG_PUBLIC_KEY
-                               MY_GPG_PRIVATE_KEY
-                               MY_GPG_PUBLIC_KEY_ID
-                               USB_DRIVE
-                               MAX_PHP_MEMORY
-                               TLS_TIME_SOURCE1
-                               TLS_TIME_SOURCE2
-                               ONION_ONLY
-                               DEFAULT_LANGUAGE
-                               MINIMAL_INSTALL
-                               LETSENCRYPT_SERVER
-                               WIFI_INTERFACE
-                               WIFI_SSID
-                               WIFI_TYPE
-                               WIFI_PASSPHRASE
-                               WIFI_HOTSPOT
-                               WIFI_NETWORKS_FILE
-                               DEFAULT_SEARCH
-                               SEARCH_ENGINE_PASSWORD
-                               PROJECT_WEBSITE
-                               PROJECT_REPO
-                               GPGIT_REPO
-                               GPGIT_COMMIT
-                               NGINX_ENSITE_REPO
-                               NGINX_ENSITE_REPO
-                               NGINX_ENSITE_COMMIT
-                               CLEANUP_MAILDIR_COMMIT
-                               CLEANUP_MAILDIR_REPO
-                               INADYN_REPO
-                               INADYN_COMMIT
-                               DH_KEYLENGTH
-                               WIFI_CHANNEL
-                               IPV6_NETWORK
-                               HWRNG_TYPE
-                               ENABLE_BABEL
-                               ENABLE_BATMAN
-                               ENABLE_CJDNS
-                               PUBLIC_MAILING_LIST)
-
-        for v in "${read_config_variables[@]}"
+        for v in "${configuration_variables[@]}"
         do
             read_config_param "$v"
         done