Add suspend-to-hibernate

suspend-to-hibernate/PKGBUILD

@@ -0,0 +1,13 @@
+# Maintainer: Manuel Vögele <aur@manuel-voegele.de>
+pkgname=suspend-to-hibernate
+pkgver=1
+pkgrel=1
+
+arch=('any')
+source=('suspend-to-hibernate.service')
+md5sums=('SKIP')
+
+package() {
+  mkdir -p "${pkgdir}/etc/systemd/system/"
+  cp "${srcdir}/suspend-to-hibernate.service" "${pkgdir}/etc/systemd/system/suspend-to-hibernate.service"
+}

suspend-to-hibernate/suspend-to-hibernate.service

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+[Unit]
+Description=Delayed hibernation trigger
+Documentation=https://bbs.archlinux.org/viewtopic.php?pid=1420279#p1420279
+Documentation=https://wiki.archlinux.org/index.php/Power_management
+Conflicts=hibernate.target hybrid-sleep.target
+Before=sleep.target
+StopWhenUnneeded=true
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+Environment="WAKEALARM=/sys/class/rtc/rtc0/wakealarm"
+Environment="SLEEPLENGTH=+30minute"
+ExecStart=-/usr/bin/sh -c 'echo -n "alarm set for "; date +%%s -d$SLEEPLENGTH | tee $WAKEALARM'
+ExecStop=-/usr/bin/sh -c '\
+  alarm=$(cat $WAKEALARM); \
+  now=$(date +%%s); \
+  if [ -z "$alarm" ] || [ "$now" -ge "$alarm" ]; then \
+     echo "hibernate triggered"; \
+     systemctl hibernate; \
+  else \
+     echo "normal wakeup"; \
+  fi; \
+  echo 0 > $WAKEALARM; \
+'
+
+[Install]
+WantedBy=sleep.target