run.sh: add utility functions & initial setup step

src/run.sh

@@ -42,6 +42,48 @@ ask_yesno() {
 	return "$?"; # Not actually needed, but best to be explicit
 }
 
+queue_postinstall_step() {
+	local stepname="$1";
+	
+	echo "${stepname}" >>"${temp_dir}/steps.txt";
+}
+
+queue_apt_install() {
+	for package_name in "$@"; do
+		subtask_begin "[apt] Queueing install of ${package_name}";
+		echo "${package_name}" >>"${temp_dir}/apt-packages.txt";
+		subtask_end "$?";
+	done
+}
+
+###############################################################################
+
+
+# ███████ ████████ ███████ ██████       ██████
+# ██         ██    ██      ██   ██     ██  ████
+# ███████    ██    █████   ██████      ██ ██ ██
+#      ██    ██    ██      ██          ████  ██
+# ███████    ██    ███████ ██           ██████
+
+stage_begin "Preparing to provision host";
+
+task_begin "Creating temporary directory";
+temp_dir="$(mktemp --tmpdir -d "sbrl-provisioning-XXXXXXX")";
+on_exit() {
+	task_begin "Cleaning up";
+	rm -rf "${temp_dir}";
+}
+trap on_exit EXIT;
+task_end "$?";
+
+
+task_begin "Setting initial state";
+cat apt-packages.txt >"${temp_dir}/apt-packages.txt";
+queue_postinstall_step "base";
+task_end "$?";
+
+stage_end "$?";
+
 ###############################################################################
 
 # ███████ ████████ ███████ ██████       ██
@@ -52,5 +94,9 @@ ask_yesno() {
 step_current="1";
 
 if ask_yesno "Use apt cache?"; then
-	source ./steps/10-apt-cache.sh;
+	source ./steps-config/10-apt-cache.sh;
+fi
+
+if ask_yesno "Install Docker?"; then
+	source ./steps-config/10-docker.sh;
 fi