Add due script

due

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+
+import os
+import re
+import subprocess
+import sys
+from datetime import datetime
+
+TAGS = ['t', 'due']
+
+def getTag(item):
+    if ":" not in item:
+        return None
+    try:
+        sub = re.findall("[^ ]+:\\d\\d\\d\\d-\\d\\d-\\d\\d", item)[0].strip()
+    except IndexError:
+        return None
+    return sub.split(":")
+
+def getDate(date):
+    return datetime.strptime(date, "%Y-%m-%d")
+
+def highlightDate(item):
+    full_tag = item[1] + ":" + item[0]
+    if getDate(item[0]) < datetime.today():
+        #if the date has already passed, wrap with bold/unbold escapes
+        item[2] = item[2].replace(full_tag, '\033[1m' + full_tag + '\033[22m')
+    return item
+
+def relativeDate(item):
+    full_tag = item[1] + ":" + item[0]
+    difference = getDate(item[0]) - datetime.today()
+    item[2] = item[2].replace(full_tag, item[1] + ":" + str(difference.days) + "days")
+    return item
+
+def main(argv):
+    lines = subprocess.check_output(["todo.sh", "list"]).decode(encoding='UTF-8').split('\n')
+    items = []
+    for line in lines:
+        tag = getTag(line)
+        if tag is not None:
+            items.append([tag[1], tag[0], line])
+
+    items.sort()
+    for i in items:
+        if len(argv) > 2 and argv[2] == "rel":
+            print(relativeDate(highlightDate(i))[2])
+        else:
+            print(highlightDate(i)[2])
+
+#if __name__ == '__main__':
+main(sys.argv)