Lint-Fixes, process-Disc-Validierung und Forgejo-CI

- ruff: Import-Sortierung, unused imports, Zeilenlängen behoben
- cli.py: _check_disc_counts_or_exit() extrahiert; auch process-Befehl
  prüft jetzt Disc-Anzahlen vor dem Umbenennen
- .forgejo/workflows/ci.yml: ruff + pytest auf push/PR gegen main

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.forgejo/workflows/ci.yml

@@ -0,0 +1,27 @@
+name: CI
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: pip install -e ".[dev]"
+
+      - name: Lint (ruff)
+        run: ruff check src/ tests/
+
+      - name: Tests (pytest)
+        run: pytest tests/ -v --tb=short

src/musiksammlung/cli.py

@@ -7,8 +7,9 @@ import logging
 from pathlib import Path
 
 import typer
+from mutagen import File as MutagenFile
 
-from musiksammlung.config import AudioFormat
+from musiksammlung.config import AUDIO_EXTENSIONS, AudioFormat
 from musiksammlung.cover import copy_covers, find_cover
 from musiksammlung.llm_parser import parse_tracklist
 from musiksammlung.models import Album
@@ -16,9 +17,6 @@ from musiksammlung.ocr import ocr_images
 from musiksammlung.organizer import apply_mapping, build_mapping, check_disc_counts
 from musiksammlung.playlist import generate_playlist
 from musiksammlung.ripper import RipperConfig, interactive_rip
-from mutagen import File as MutagenFile
-
-from musiksammlung.config import AUDIO_EXTENSIONS
 from musiksammlung.tagger import embed_album_cover, tag_album
 from musiksammlung.vision_llm import parse_image
 
@@ -62,6 +60,39 @@ def _scan_to_album(
         )
 
 
+def _check_disc_counts_or_exit(album: Album, input_dir: Path, album_json: Path) -> None:
+    """Prüft Disc-Zählungen und beendet das Programm bei Abweichungen."""
+    checks = check_disc_counts(album, input_dir)
+    problems = [c for c in checks if not c.ok]
+    if not problems:
+        return
+    typer.echo(
+        "\nFEHLER: Track-Diskrepanz zwischen gerippten Dateien und album.json:\n",
+        err=True,
+    )
+    for c in checks:
+        status = "OK" if c.ok else "!!"
+        typer.echo(
+            f"  [{status}] Disc {c.disc_number}: "
+            f"{c.audio_file_count} Datei(en), {c.json_track_count} JSON-Track(s)",
+            err=True,
+        )
+        if c.surplus_files:
+            typer.echo(
+                f"       → {c.surplus_files} Track(s) fehlen im JSON "
+                f"(Tracks {c.json_track_count + 1}–{c.audio_file_count} eintragen)",
+                err=True,
+            )
+        elif c.surplus_json:
+            typer.echo(
+                f"       → {c.surplus_json} JSON-Eintrag/Einträge ohne Audiodatei "
+                f"(Tracks {c.audio_file_count + 1}–{c.json_track_count} prüfen)",
+                err=True,
+            )
+    typer.echo(f"\nBitte {album_json} korrigieren und erneut aufrufen.", err=True)
+    raise typer.Exit(1)
+
+
 def _print_album_summary(album: Album) -> None:
     """Gibt eine kompakte Album-Zusammenfassung aus."""
     typer.echo(f"  Artist: {album.artist}")
@@ -167,34 +198,7 @@ def apply(
         raise typer.Exit(1)
 
     # Prüfe Track-Anzahl pro Disc
-    checks = check_disc_counts(album, input_dir)
+    _check_disc_counts_or_exit(album, input_dir, album_json)
-    problems = [c for c in checks if not c.ok]
-    if problems:
-        typer.echo(
-            "\nFEHLER: Track-Diskrepanz zwischen gerippten Dateien und album.json:\n",
-            err=True,
-        )
-        for c in checks:
-            status = "OK" if c.ok else "!!"
-            typer.echo(
-                f"  [{status}] Disc {c.disc_number}: "
-                f"{c.audio_file_count} Datei(en), {c.json_track_count} JSON-Track(s)",
-                err=True,
-            )
-            if c.surplus_files:
-                typer.echo(
-                    f"       → {c.surplus_files} Track(s) fehlen im JSON "
-                    f"(Tracks {c.json_track_count + 1}–{c.audio_file_count} eintragen)",
-                    err=True,
-                )
-            elif c.surplus_json:
-                typer.echo(
-                    f"       → {c.surplus_json} JSON-Eintrag/Einträge ohne Audiodatei "
-                    f"(Tracks {c.audio_file_count + 1}–{c.json_track_count} prüfen)",
-                    err=True,
-                )
-        typer.echo(f"\nBitte {album_json} korrigieren und erneut aufrufen.", err=True)
-        raise typer.Exit(1)
 
     mapping = build_mapping(album, input_dir, output_dir, in_place=in_place)
     typer.echo(f"Mapping: {len(mapping)} Dateien")
@@ -346,6 +350,9 @@ def process(
     json_path = input_dir / "album.json"
     json_path.write_text(album.model_dump_json(indent=2), encoding="utf-8")
 
+    # Prüfe Track-Anzahl pro Disc
+    _check_disc_counts_or_exit(album, input_dir, json_path)
+
     # 2. Dateien organisieren
     typer.echo("Schritt 2/4: Dateien organisieren...")
     mapping = build_mapping(album, input_dir, output_dir)

tests/test_cover.py

@@ -2,8 +2,6 @@
 
 from pathlib import Path
 
-import pytest
-
 from musiksammlung.cover import find_cover
 
 

tests/test_organizer.py

@@ -2,8 +2,6 @@
 
 from pathlib import Path
 
-import pytest
-
 from musiksammlung.models import Album, Disc, Track
 from musiksammlung.organizer import (
     _sanitize_filename,
@@ -122,7 +120,10 @@ class TestCheckDiscCounts:
             album="B",
             discs=[
                 Disc(disc_number=1, tracks=[Track(track_number=1, title="T1")]),
-                Disc(disc_number=2, tracks=[Track(track_number=1, title="T2"), Track(track_number=2, title="T3")]),
+                Disc(
+                    disc_number=2,
+                    tracks=[Track(track_number=1, title="T2"), Track(track_number=2, title="T3")],
+                ),
             ],
         )
         results = check_disc_counts(album, tmp_path)

tests/test_playlist.py

@@ -10,7 +10,9 @@ def _make_album(n_tracks: int = 2, n_discs: int = 1) -> Album:
     discs = [
         Disc(
             disc_number=d,
-            tracks=[Track(track_number=i, title=f"Disc{d} Song {i}") for i in range(1, n_tracks + 1)],
+            tracks=[
+                Track(track_number=i, title=f"Disc{d} Song {i}") for i in range(1, n_tracks + 1)
+            ],
         )
         for d in range(1, n_discs + 1)
     ]

tests/test_ripper.py

@@ -2,8 +2,6 @@
 
 from pathlib import Path
 
-import pytest
-
 from musiksammlung.config import AudioFormat
 from musiksammlung.ripper import (
     RipperConfig,