Add database initialization and CLI arguments

- Implement argparse for CLI use
- Setup SQLite DB with schema version checking

.gitignore

@@ -1,2 +1,3 @@
 config.ini
+*.db
 venv

main.py

@@ -1,22 +1,127 @@
-import configparser
+#!/usr/bin/env python3
+"""
+Torrent Archiver
+
+Provides functionality for managing datasets distributed through BitTorrent.
+It tracks files and reconciles hardlinks between download directories and
+archival locations.
+
+"""
+
+import argparse
+import os
+import sqlite3
+import sys
+
 import qbittorrent
-import time
 
-# Load config
-config = configparser.ConfigParser()
-config.read("config.ini")
-qbittorrent_client = config["DEFAULT"]["QBITTORRENT_CLIENT"]
-debug = config["DEFAULT"].getboolean("DEBUG")
+# SCHEMA format is YYYYMMDDX
+SCHEMA = 202410040
 
-# Connect to qbittorrent
-qb = qbittorrent.Client(qbittorrent_client)
-torrents = qb.torrents()
+def init_db(conn):
+    """
+    Initialize database
+    """
 
-# Debug info
-if debug:
-    print(f"[DEBUG]: There are {len(torrents)} torrents")
+    c = conn.cursor()
+    c.executescript(
+        f"""
+        PRAGMA user_version = {SCHEMA};
+        CREATE TABLE IF NOT EXISTS torrents (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            info_hash_v1 TEXT NOT NULL UNIQUE,
+            info_hash_v2 TEXT UNIQUE,
+            name TEXT NOT NULL,
+            file_count INTEGER NOT NULL,
+            content_path TEXT NOT NULL,
+            completed_on DATETIME DEFAULT CURRENT_TIMESTAMP,
+            tracker_ids TEXT
+        );
 
-# List torrents
-for torrent in torrents:
-    print(torrent["name"])
-    time.sleep(2)
+        CREATE TABLE IF NOT EXISTS trackers (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            url TEXT NOT NULL UNIQUE
+        );
+
+        CREATE TABLE IF NOT EXISTS files (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            torrent_id INTEGER NOT NULL,
+            file_index INTEGER NOT NULL,
+            file_path TEXT NOT NULL,
+            size INTEGER NOT NULL,
+            is_downloaded BOOLEAN NOT NULL DEFAULT 0,
+            last_checked DATETIME,
+            FOREIGN KEY (torrent_id) REFERENCES torrents(id),
+            UNIQUE (torrent_id, file_index)
+        );
+
+    """
+    )
+    c.close()
+
+
+def list_tables(conn):
+    """
+    List all tables in database
+    """
+    c = conn.cursor()
+    c.execute("SELECT name FROM sqlite_master WHERE type='table';")
+    table_list = c.fetchall()
+    c.close()
+    return [table[0] for table in table_list]
+
+
+parser = argparse.ArgumentParser(description="Manage BitTorrent datasets", prog="tarch")
+subparsers = parser.add_subparsers(
+    dest="command", required=True, help="Available commands"
+)
+
+scan_parser = subparsers.add_parser("scan", help="Scan command")
+scan_parser.add_argument("--debug", action="store_true", help="Enable debug mode")
+scan_parser.add_argument("-d", "--directory", help="Directory to scan")
+scan_parser.add_argument("-t", "--type", help="Scan type")
+scan_parser.add_argument("-e", "--endpoint", help="Endpoint URL")
+scan_parser.add_argument("-u", "--username", help="Username")
+scan_parser.add_argument("-p", "--password", help="Password")
+scan_parser.add_argument("-s", "--storage", help="Path of sqlite3 database")
+
+args = parser.parse_args()
+
+if args.command == "scan":
+    if args.storage is None:
+        STORAGE = os.path.expanduser("~/.tarch.db")
+    else:
+        STORAGE = args.storage
+    try:
+        sqlitedb = sqlite3.connect(STORAGE)
+        tables = list_tables(sqlitedb)
+    except sqlite3.DatabaseError as e:
+        print(f"[ERROR]: Database \"{STORAGE}\" Error: {str(e)}")
+        sys.exit(1)
+    if len(tables) == 0:
+        print(f"[INFO]: Initializing database at {STORAGE}")
+        init_db(sqlitedb)
+    cursor = sqlitedb.cursor()
+    cursor.execute("PRAGMA user_version;")
+    SCHEMA_FOUND = cursor.fetchone()[0]
+    cursor.close()
+    if not SCHEMA == SCHEMA_FOUND:
+        print(f"[ERROR]: SCHEMA {SCHEMA_FOUND}, expected {SCHEMA}")
+        sys.exit(1)
+    if not args.directory is None:
+        print("[INFO]: --directory is not implemented\n")
+        sys.exit(0)
+    if not args.endpoint is None:
+        qb = qbittorrent.Client(args.endpoint)
+        torrents = qb.torrents()
+        print(f"[INFO]: There are {len(torrents)} torrents\n")
+        for torrent in torrents[:10]:
+            files = qb.get_torrent_files(torrent["hash"])
+            if args.debug:
+                print(f"[DEBUG]: {repr(torrent)}")
+            print(f"[name]: {torrent['name']}")
+            print(f"[infohash_v1]: {torrent['infohash_v1']}")
+            print(f"[content_path]: {torrent['content_path']}")
+            print(f"[magent_uri]: {torrent['magnet_uri'][0:80]}")
+            print(f"[completed_on]: {torrent['completed']}")
+            print(f"[file_count]: {len(files)}\n")

tarch

@@ -2,6 +2,7 @@
 
 # Create a virtual environment if it does not exist
 if [ ! -d "venv" ]; then
+  # shellcheck disable=SC1091
   python3 -m venv venv && \
   source venv/bin/activate && \
   pip install -r requirements.txt && \
@@ -9,6 +10,7 @@ if [ ! -d "venv" ]; then
 fi
 
 # Activate the virtual environment
+# shellcheck disable=SC1091
 source venv/bin/activate
 
 # Run the Python script