refactor: get state/versions only when necessary (#91)

Author: dated

actions/core/install.sh

@@ -27,5 +27,7 @@ core_install ()
         ascii
 
         success "Installed Ark Core!"
+
+        core_version
     fi
 }

actions/core/uninstall.sh

@@ -26,4 +26,6 @@ core_uninstall ()
     success "Deleted Configuration!"
 
     success "Uninstalled Ark Core!"
+
+    core_version
 }

actions/core/update.sh

@@ -55,6 +55,8 @@ core_update ()
 
             success "Update OK!"
             STATUS_CORE_UPDATE="No"
+
+            core_version
         fi
     fi
 }

actions/miscellaneous/updates.sh

@@ -37,4 +37,6 @@ miscellaneous_install_updates ()
             press_to_continue
         fi
     fi
+
+    get_versions
 }

commander.sh

@@ -117,6 +117,8 @@ main ()
 
     if [[ -d "$EXPLORER_DIR" ]]; then
         explorer_update
+    else
+        STATUS_EXPLORER_UPDATE="n/a"
     fi
 
     while true; do

menus/core/menu.sh

@@ -5,6 +5,7 @@ menu_manage_core ()
     ascii
 
     forger_status
+    relay_status
 
     text_white "    U. Update Ark Core"
     text_white "    P. Uninstall Ark Core"

modules/state.sh

@@ -2,8 +2,6 @@
 
 refresh_state ()
 {
-    get_versions
-
     ntp_status
     pgsql_status
     relay_status

modules/versions.sh

@@ -1,32 +1,53 @@
 #!/usr/bin/env bash
 
 get_versions ()
+{
+    core_version
+    node_version
+    npm_version
+    yarn_version
+    psql_version
+}
+
+core_version ()
 {
     if [[ -d "$CORE_DIR" ]]; then
         cd "$CORE_DIR"
         VERSION_CORE=$(git rev-parse --short HEAD)
     else
         VERSION_CORE="n/a"
     fi
+}
 
+node_version ()
+{
     if [[ -x "$(command -v node)" ]]; then
         VERSION_NODE=$(node -v | sed 's/v//g')
     else
         VERSION_NODE="n/a"
     fi
+}
 
+npm_version ()
+{
     if [[ -x "$(command -v npm)" ]]; then
         VERSION_NPM=$(npm -v)
     else
         VERSION_NPM="n/a"
     fi
+}
 
+yarn_version ()
+{
     if [[ -x "$(command -v yarn)" ]]; then
         VERSION_YARN=$(yarn -v)
     else
         VERSION_YARN="n/a"
     fi
+}
 
+psql_version ()
+{
     if [[ -x "$(command -v psql)" ]]; then
         VERSION_PSQL=$(psql -V | awk '{ print $3 }')
     else