Merge pull request #29 from runborg/current

T689: Rewritten poweroff/reboot script to use systemd-shutdownd service

1 files changed, 142 insertions, 0 deletions

diff --git a/src/op_mode/powerctrl.py b/src/op_mode/powerctrl.py
new file mode 100755
index 000000000..f73d6c005
--- /dev/null
+++ b/src/op_mode/powerctrl.py
@@ -0,0 +1,142 @@
+#!/usr/bin/env python3
+import os
+import sys
+import argparse
+from datetime import datetime, timedelta, time as type_time, date as type_date
+from subprocess import check_output,CalledProcessError,STDOUT
+import re
+
+def yn(msg, default=False):
+    default_msg = "[Y/n]" if default else "[y/N]"
+    while True:
+        sys.stdout.write("%s %s "  % (msg,default_msg))
+        c = input().lower()
+        if c == '':
+            return default
+        elif c in ("y", "ye","yes"):
+            return True
+        elif c in ("n", "no"):
+            return False
+        else:
+            sys.stdout.write("Please respond with yes/y or no/n\n")
+
+
+def valid_time(s):
+    try:
+        return datetime.strptime(s, "%H:%M").time()
+    except ValueError:
+        return None
+
+
+def valid_date(s):
+    try:
+        return datetime.strptime(s, "%d%m%Y").date()
+    except ValueError:
+        try:
+            return datetime.strptime(s, "%d/%m/%Y").date()
+        except ValueError:
+            try:
+                return datetime.strptime(s, "%d.%m.%Y").date()
+            except ValueError:
+                try:
+                    return datetime.strptime(s, "%d:%m:%Y").date()
+                except ValueError:
+                    return None
+
+
+def check_shutdown():
+    try:
+        cmd = check_output(["/bin/systemctl","status","systemd-shutdownd.service"])
+        #Shutodwn is scheduled
+        r = re.findall(r'Status: \"(.*)\"\n', cmd.decode())[0]
+        print(r)
+    except CalledProcessError as e:
+        #Shutdown is not scheduled
+        print("Shutdown is not scheduled")
+
+def cancel_shutdown():
+    try:
+        cmd = check_output(["/sbin/shutdown","-c"])
+    except CalledProcessError as e:
+        sys.exit("Error aborting shutdown: %s" % e)
+
+def execute_shutdown(time, reboot = True, ask=True):
+    if not ask:
+        action = "reboot" if reboot else "poweroff"
+        if not yn("Are you sure you want to %s this system?" % action):
+            sys.exit(0)
+
+    action = "-r" if reboot else "-P"
+
+    if len(time) == 0:
+        cmd = check_output(["/sbin/shutdown",action,"now"],stderr=STDOUT)
+        print(cmd.decode().split(",",1)[0])
+        return
+
+    # Try to extract date from the first argument
+    if len(time) == 1:
+        time = time[0].split(" ",1)
+
+    if len(time) == 1:
+        ts=valid_time(time[0])
+        if time[0].isdigit() or valid_time(time[0]):
+            cmd = check_output(["/sbin/shutdown",action,time[0]],stderr=STDOUT)
+        else:
+            sys.exit("Timestamp needs to be in format of 12:34")
+
+    elif len(time) == 2:
+        ts = valid_time(time[0])
+        ds = valid_date(time[1])
+        if ts and ds:
+            t = datetime.combine(ds, ts)
+            td = t-datetime.now()
+            t2 = 1+int(td.total_seconds())//60 # Get total minutes
+            cmd = check_output(["/sbin/shutdown",action,str(t2)],stderr=STDOUT)
+        else:
+            sys.exit("Timestamp needs to be in format of 12:34\nDatestamp in the format of DD.MM.YY")
+    else:
+        sys.exit("Could not decode time and date")
+
+    print(cmd.decode().split(",",1)[0])
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--yes", "-y",
+                        help="dont as for shutdown",
+                        action="store_true",
+                        dest="yes")
+    action = parser.add_mutually_exclusive_group(required=True)
+    action.add_argument("--reboot", "-r",
+                        help="Reboot the system",
+                        nargs="*",
+                        metavar="Minutes|HH:MM")
+
+    action.add_argument("--poweroff", "-p",
+                        help="Poweroff the system",
+                        nargs="*",
+                        metavar="Minutes|HH:MM")
+
+    action.add_argument("--cancel", "-c",
+                        help="Cancel pending shutdown",
+                        action="store_true")
+
+    action.add_argument("--check",
+                        help="Check pending chutdown",
+                        action="store_true")
+    args = parser.parse_args()
+
+    try:
+        if args.reboot:
+            execute_shutdown(args.reboot, reboot=True, ask=args.yes)
+        if args.poweroff:
+            execute_shutdown(args.poweroff, reboot=False,ask=args.yes)
+        if args.cancel:
+            cancel_shutdown()
+        if args.check:
+            check_shutdown()
+    except KeyboardInterrupt:
+        sys.exit("Interrupted")
+
+
+if __name__ == "__main__":
+    main()