template

emily/archiso/airootfs/root/.automated_script.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+script_cmdline() {
+    local param
+    for param in $(</proc/cmdline); do
+        case "${param}" in
+            script=*)
+                echo "${param#*=}"
+                return 0
+                ;;
+        esac
+    done
+}
+
+automated_script() {
+    local script rt
+    script="$(script_cmdline)"
+    if [[ -n "${script}" && ! -x /tmp/startup_script ]]; then
+        if [[ "${script}" =~ ^((http|https|ftp|tftp)://) ]]; then
+            # there's no synchronization for network availability before executing this script
+            printf '%s: waiting for network-online.target\n' "$0"
+            until systemctl --quiet is-active network-online.target; do
+                sleep 1
+            done
+            printf '%s: downloading %s\n' "$0" "${script}"
+            curl "${script}" --location --retry-connrefused --retry 10 -s -o /tmp/startup_script
+            rt=$?
+        else
+            cp "${script}" /tmp/startup_script
+            rt=$?
+        fi
+        if [[ ${rt} -eq 0 ]]; then
+            chmod +x /tmp/startup_script
+            printf '%s: executing automated script\n' "$0"
+            # note that script is executed when other services (like pacman-init) may be still in progress, please
+            # synchronize to "systemctl is-system-running --wait" when your script depends on other services
+            /tmp/startup_script
+        fi
+    fi
+}
+
+if [[ $(tty) == "/dev/tty1" ]]; then
+    automated_script
+fi