Fix apt source recovery before auto package install

.templates/ha_autoapps.sh

@@ -9,6 +9,61 @@ set -e
 PACKAGES="$1"
 echo "To install : $PACKAGES"
 
+apt_has_sources() {
+    [ -d /etc/apt ] || return 1
+    find /etc/apt -type f \( -name "sources.list" -o -name "*.list" -o -name "*.sources" \) \
+        -exec grep -Ehs '^[[:space:]]*(deb|Types:[[:space:]]*deb)' {} \; | grep -q .
+}
+
+restore_apt_sources_if_missing() {
+    command -v apt-get > /dev/null 2> /dev/null || return 0
+    apt_has_sources && return 0
+
+    if [ -r /etc/os-release ]; then
+        # shellcheck disable=SC1091
+        . /etc/os-release
+    fi
+
+    codename="${VERSION_CODENAME:-${UBUNTU_CODENAME:-}}"
+    if [ -z "$codename" ]; then
+        echo "Error: apt sources are missing and OS codename could not be detected" >&2
+        exit 1
+    fi
+
+    mkdir -p /etc/apt
+    case "${ID:-}" in
+        ubuntu)
+            arch="$(dpkg --print-architecture 2> /dev/null || true)"
+            if [ "$arch" = "amd64" ] || [ "$arch" = "i386" ]; then
+                mirror="http://archive.ubuntu.com/ubuntu"
+                security_mirror="http://security.ubuntu.com/ubuntu"
+            else
+                mirror="http://ports.ubuntu.com/ubuntu-ports"
+                security_mirror="$mirror"
+            fi
+            cat > /etc/apt/sources.list <<EOF2
+deb ${mirror} ${codename} main restricted universe multiverse
+deb ${mirror} ${codename}-updates main restricted universe multiverse
+deb ${security_mirror} ${codename}-security main restricted universe multiverse
+EOF2
+            ;;
+        debian)
+            cat > /etc/apt/sources.list <<EOF2
+deb http://deb.debian.org/debian ${codename} main contrib non-free non-free-firmware
+deb http://deb.debian.org/debian ${codename}-updates main contrib non-free non-free-firmware
+deb http://deb.debian.org/debian-security ${codename}-security main contrib non-free non-free-firmware
+EOF2
+            ;;
+        *)
+            echo "Error: apt sources are missing for unsupported OS '${ID:-unknown}'" >&2
+            exit 1
+            ;;
+    esac
+}
+
+restore_apt_sources_if_missing
+rm -f /ERROR
+
 # Install bash if needed
 if ! command -v bash > /dev/null 2> /dev/null; then
     (apt-get update && apt-get install -yqq --no-install-recommends bash || apk add --no-cache bash) > /dev/null