add script for getting time until a datetime

Author: anlutro

requirements.txt

@@ -2,3 +2,4 @@ github3.py
 tweepy
 pyusb
 pulsectl
+python-dateutil

scripts/time-until.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env /home/andreas/code/dotfiles/.venv/bin/python
+
+import argparse
+import datetime
+import dateutil.parser
+
+
+def parse_dt(val):
+    return dateutil.parser.parse(val)
+
+
+def get_time_until(dt, unit=None):
+    now = datetime.datetime.now(dt.tzinfo)
+    delta = dt - now
+    if unit is not None:
+        unit = unit.strip().lower()
+        if unit[0] == "d":
+            return f"{delta.days} days"
+        elif unit[0] == "h":
+            delta = str(int((delta.days * 24) + (delta.seconds / 3600))) + " hours"
+        elif unit in ("mins", "minutes"):
+            delta = str(int((delta.days * 24) + (delta.seconds / 60))) + " minutes"
+    return delta
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-u", "--unit")
+    parser.add_argument("-t", "--template", default="Time until {time}: {remaining}")
+    parser.add_argument("datetime", type=parse_dt)
+    args = parser.parse_args()
+    print(
+        args.template.format(
+            time=args.datetime,
+            remaining=get_time_until(args.datetime, unit=args.unit),
+        )
+    )
+
+
+if __name__ == "__main__":
+    main()