Merge branch 'master' into release

main.py

@@ -1,10 +1,11 @@
 #!/usr/bin/python3
 
-import yaml
-import pypandoc
+import argparse
 import os
+import pypandoc
 import re
 import sys
+import yaml
 
 root = ""
 lang = "de"
@@ -123,15 +124,11 @@ def read_yaml(path):
         except yaml.YAMLError as exc:
             print(exc)
 
-# Print information on how to use this program.
-def print_usage():
-    print("Usage: python3 main.py <root-directory>")
-
 if __name__ == '__main__':
-    if len(sys.argv) != 2:
-        print_usage()
-    else:
-        compile(sys.argv[1], language='de')
-        # TODO: Handle multiple languages
-        # compile(sys.argv[1], language='en')
+    parser = argparse.ArgumentParser()
+    parser.add_argument("rootdirectory", help="your project's root directory (default: .)")
+    parser.add_argument("-l", "--language", default="de", help="the presentation language (default: de)")
+
+    args = parser.parse_args()
+    compile(args.rootdirectory, language=args.language)