From a158fe958cd767d008b63702fe9a984874003812 Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Tue, 14 Mar 2023 00:01:18 +0100
Subject: [PATCH] Update readme

---
 README.md          | 26 ++++++++++++++++++++++++--
 wgmaster/export.py |  2 +-
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 5b197c5..0185e44 100644
--- a/README.md
+++ b/README.md
@@ -11,13 +11,35 @@
 
 # Migrate DB
 
+## Export WGdaten
+
+**ATTENTION:** Office and Python versions have to be both 64-bit or both 32-bit!
+
+This will export all tables from the MS Access file `WGDATEN.accdb`
+as csv files to the directory `TABLES_DIR`.
+
+```shell
+cd wgmaster
+python3 export.py WGDATEN.accdb -o TABLES_DIR
+cd..
+```
+
+## Generate PLZ
+
+This will generate `data/90.plz.sql`.
+
 ```shell
 cd data
 python3 plz.py
 cd ..
+````
+
+## Migrate
+
+```shell
 cd wgmaster
-python3 migrate.py -q IN_DIR OUT_DIR -d DB.sqlite3
-python3 import.py OUT_DIR NEW.sqlite3
+python3 migrate.py -q TABLES_DIR MIGRATE_DIR -d DB.sqlite3
+python3 import.py MIGRATE_DIR NEW.sqlite3
 cd ..
 ```
 
diff --git a/wgmaster/export.py b/wgmaster/export.py
index 1782431..d8bb0e1 100644
--- a/wgmaster/export.py
+++ b/wgmaster/export.py
@@ -28,7 +28,7 @@ def convert(tbl: str, name: str, a: Any) -> str:
 if __name__ == '__main__':
     parser = argparse.ArgumentParser()
     parser.add_argument('-o', '--output', default='tables')
-    parser.add_argument('wgdaten')
+    parser.add_argument('wgdaten', metavar='WGDATEN')
     args = parser.parse_args()
 
     os.makedirs(args.output, exist_ok=True)