Update version to 0.2.2, add DHL tracking provider, and improve config file generation and loading

- Change version in pyproject.toml to 0.2.2
- Add DHL tracking provider to README.md
- Update README.md with instructions for generating a config file
- Improve config file generation in __main__.py
- Load config file in Tracker class
- Update start and start_async methods in Tracker class to accept an optional config file path

README.md

@@ -12,6 +12,7 @@ Status information is stored in a SQLite database.
 - [Austrian Post](https://www.post.at)
 - [GLS](https://gls-group.eu)
 - [FedEx](https://www.fedex.com) (requires an API key, see [FedEx Developer Resource Center](https://www.fedex.com/en-us/developer.html))
+- [DHL](https://www.dhl.com) (requires an API key, see [DHL Developer Portal](https://developer.dhl.com/))
 
 More tracking providers can be added easily by subclassing `trackbert.trackers.base.BaseTracker`. This should be relatively self-explanatory if you look at the existing implementations. Pull requests are welcome!
 
@@ -43,6 +44,10 @@ First, assure that the virtual environment is activated:
 source venv/bin/activate
 ```
 
+If you need to create a new config file, run `trackbert -g`. You need this if
+you want to provide API keys required for KeyDelivery or some of the other
+tracking providers.
+
 To add a new shipment, run `trackbert --tracking-number <tracking-number> --carrier <carrier-id>`. Find the required carrier ID in the [KeyDelivery API management](https://app.kd100.com/api-management).
 
 To run the main loop, run `trackbert`. This will check the status of all shipments every 5 minutes, and print the status to the console. If the status of a shipment changes, you will get a desktop notification.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "trackbert"
-version = "0.2.1"
+version = "0.2.2"
 authors = [
   { name="Kumi Mitterer", email="trackbert@kumi.email" },
 ]

src/trackbert/__main__.py

@@ -6,13 +6,18 @@ import subprocess
 import argparse
 import logging
 import asyncio
+
 from typing import Tuple, Never, Optional
 
 from .classes.database import Database
 from .classes.tracker import Tracker
 
+
 def main():
     parser = argparse.ArgumentParser()
+
+    # Arguments related to the tracker
+
     parser.add_argument("--tracking-number", "-n", type=str, required=False)
     parser.add_argument("--carrier", "-c", type=str, required=False)
     parser.add_argument("--description", "-d", type=str, required=False)
@@ -30,17 +35,37 @@ def main():
         required=False,
         help="Disable existing shipment",
     )
-    parser.add_argument(
-        "--timeout",
-        "-t",
-        type=int,
-        required=False,
-        default=30,
-        help="Notification timeout in seconds",
-    )
+
+    # Arguments related to the config file
+
+    parser.add_argument("--generate-config", action="store_true", required=False)
+    parser.add_argument("--config-file", "-C", type=str, required=False)
 
     args = parser.parse_args()
 
+    # Generate config file if requested
+
+    config_file = Path(args.config_file or "config.ini")
+
+    if args.generate_config:
+        if config_file.exists():
+            print(f"Config file {config_file} already exists.")
+            exit(1)
+
+        with Path(config_file).open("w") as config_file_obj:
+            template = Path(__file__).parent / "config.dist.ini"
+            config_file_obj.write(template.read_text())
+            print(f"Generated config file {config_file}")
+            exit(0)
+
+    # Load config file
+
+    if not config_file.exists():
+        print(f"Config file {config_file} does not exist. Use -g to generate it.")
+        exit(1)
+
+    
+
     db = Database("sqlite:///trackbert.db")
 
     if args.tracking_number is not None and args.carrier is not None:
@@ -76,5 +101,6 @@ def main():
     tracker = Tracker()
     asyncio.run(tracker.start_async())
 
+
 if __name__ == "__main__":
     main()

src/trackbert/classes/tracker.py

@@ -3,8 +3,11 @@ import subprocess
 import time
 import importlib
 import asyncio
+
 from pathlib import Path
 from typing import Optional, Tuple, Never
+from os import PathLike
+from configparser import ConfigParser
 
 from .database import Database
 from ..trackers.base import BaseTracker
@@ -46,7 +49,7 @@ class Tracker:
                     for carrier, priority in carriers:
                         self.apis.append((carrier, priority, api))
                 except:
-                    logging.exception(f"Error loading tracker {name}")
+                    logging.exception(f"Error loading tracker {api.stem}")
 
     def query_api(self, tracking_number: str, carrier: str) -> list:
         logging.debug(f"Querying API for {tracking_number} with carrier {carrier}")
@@ -173,12 +176,20 @@ class Tracker:
 
             await asyncio.sleep(self.loop_interval)
 
-    def start(self):
-        self.db = Database("sqlite:///trackbert.db")
+    def _pre_start(self, config: Optional[PathLike] = None):
+        parser = ConfigParser()
+        parser.read(config or [])
+
+        self.database_uri = parser.get("Trackbert", "database", fallback="sqlite:///trackbert.db")
+        self.db = Database(self.database_uri)
+
+        self.loop_interval = parser.getint("Trackbert", "interval", fallback=60)
         self.notify("Trackbert", "Starting up")
+
+    def start(self, config: Optional[PathLike] = None):
+        self._pre_start(config)
         self.start_loop()
 
-    async def start_async(self):
-        self.db = Database("sqlite:///trackbert.db")
-        self.notify("Trackbert", "Starting up")
+    async def start_async(self, config: Optional[PathLike] = None):
+        self._pre_start(config)
         await self.start_loop_async()