Add option to run the installer unattended

Added an option so the installer script doesn't ask for input. Required for automated installations

README.md

@@ -20,8 +20,10 @@ bash installer.sh
 ```
 
 ### Command line arguments
+
 | argument           | default              | description                                                                |
-|--------------------|----------------------|--------------------------------------------------------|
+| ------------------ | -------------------- | -------------------------------------------------------------------------- |
+| -a \| --auto       |                      | Don't ask for input, assume yes to all questions. For automated installers |
 | -m \| --machine    |                      | On a special platform they need set a machine type use                     |
 | -d \| --data-share | $PREFIX/share/hassio | data folder for hass.io installation                                       |
 | -p \| --prefix     | /usr                 | Binary prefix for hass.io installation                                     |

installer.sh

@@ -7,6 +7,38 @@ function info { echo -e "\e[32m[info] $*\e[39m"; }
 function warn  { echo -e "\e[33m[warn] $*\e[39m"; }
 function error { echo -e "\e[31m[error] $*\e[39m"; exit 1; }
 
+# Parse command line parameters
+while [[ $# -gt 0 ]]; do
+    arg="$1"
+
+    case $arg in
+        -m|--machine)
+            MACHINE=$2
+            shift
+            ;;
+        -d|--data-share)
+            DATA_SHARE=$2
+            shift
+            ;;
+        -p|--prefix)
+            PREFIX=$2
+            shift
+            ;;
+        -s|--sysconfdir)
+            SYSCONFDIR=$2
+            shift
+            ;;
+        -a|--auto)
+            AUTO=1
+            ;;
+        *)
+            error "Unrecognized option $1"
+            ;;
+    esac
+    shift
+done
+
+if [ -z "$AUTO" ]; then
     warn ""
     warn "If you want more control over your own system, run"
     warn "Home Assistant as a VM or run Home Assistant Core"
@@ -16,6 +48,7 @@ warn "If you want to abort, hit ctrl+c within 10 seconds..."
     warn ""
 
     sleep 10
+fi
 
 ARCH=$(uname -m)
 
@@ -101,11 +134,15 @@ if [ ! -f "$FILE_NM_CONNECTION" ]; then
     curl -sL "${URL_NM_CONNECTION}" > "${FILE_NM_CONNECTION}"
 fi
 
+if [ -z "$AUTO" ]; then
     warn "Changes are needed to the /etc/network/interfaces file"
     info "If you have modified the network on the host manualy, those can now be overwritten"
     info "If you do not overwrite this now you need to manually adjust it later"
     info "Do you want to proceed with overwriting the /etc/network/interfaces file? [N/y] "
     read answer < /dev/tty
+else
+    answer="y"
+fi
 
 if [[ "$answer" =~ "y" ]] || [[ "$answer" =~ "Y" ]]; then
     info "Replacing /etc/network/interfaces"
@@ -115,34 +152,6 @@ fi
 info "Restarting NetworkManager"
 systemctl restart "${SERVICE_NM}"
 
-# Parse command line parameters
-while [[ $# -gt 0 ]]; do
-    arg="$1"
-
-    case $arg in
-        -m|--machine)
-            MACHINE=$2
-            shift
-            ;;
-        -d|--data-share)
-            DATA_SHARE=$2
-            shift
-            ;;
-        -p|--prefix)
-            PREFIX=$2
-            shift
-            ;;
-        -s|--sysconfdir)
-            SYSCONFDIR=$2
-            shift
-            ;;
-        *)
-            error "Unrecognized option $1"
-            ;;
-    esac
-    shift
-done
-
 PREFIX=${PREFIX:-/usr}
 SYSCONFDIR=${SYSCONFDIR:-/etc}
 DATA_SHARE=${DATA_SHARE:-$PREFIX/share/hassio}