Init CBZ Volume Combiner v0.2.0
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Ben
159
cbz_volume_combiner/volume.py
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159
cbz_volume_combiner/volume.py
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# File: /home/code/projects/manga-organizer-1/cbz-volume-combiner/cbz_volume_combiner/volume.py
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import os
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import zipfile
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import tempfile
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import shutil
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from tqdm import tqdm
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from .file_utils import fix_missing_files
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def create_volume_cbz(manga_name, volume_num, chapter_infos, output_dir=None, force=False, verbose=False, extra_verbose=False):
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"""Combine multiple chapter CBZ files into a single volume CBZ."""
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# Determine output path
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volume_filename = f"{manga_name} - Volume {volume_num:02d}.cbz"
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if output_dir:
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os.makedirs(output_dir, exist_ok=True)
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output_path = os.path.join(output_dir, volume_filename)
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else:
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# Use the directory of the first chapter
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output_path = os.path.join(os.path.dirname(chapter_infos[0]['filename']), volume_filename)
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if verbose:
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print(f"Creating volume: {volume_filename}")
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print(f"Output path: {output_path}")
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# Check if volume already exists
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if os.path.exists(output_path) and not force:
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if verbose:
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print(f"Skipping {volume_filename} (already exists)")
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return True, "Skipped (already exists)"
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try:
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# Verify all chapter files exist before starting and attempt to fix missing files
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missing_files = []
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for chapter_info in chapter_infos:
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if not os.path.exists(chapter_info['filename']):
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missing_files.append(chapter_info['filename'])
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if missing_files:
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if extra_verbose:
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print(f"Found {len(missing_files)} missing files, attempting to fix:")
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for missing in missing_files:
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print(f" - {os.path.basename(missing)}")
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# Try to fix missing files by finding alternatives
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chapter_dir = os.path.dirname(chapter_infos[0]['filename'])
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fixed_chapters, unresolved_chapters = fix_missing_files(chapter_infos, chapter_dir, extra_verbose)
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if unresolved_chapters:
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if extra_verbose:
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print(f"Could not resolve {len(unresolved_chapters)} missing files:")
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for chapter in unresolved_chapters:
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print(f" - {os.path.basename(chapter['filename'])}")
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# Ask if user wants to skip unresolved chapters and continue with available ones
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if len(fixed_chapters) >= 2: # Only offer to continue if we have at least 2 chapters
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print(f"WARNING: {len(unresolved_chapters)} chapters couldn't be found.")
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print(f"Would you like to continue with the {len(fixed_chapters)} available chapters? (y/n)")
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response = input().strip().lower()
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if response != 'y':
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return False, f"Missing {len(unresolved_chapters)} chapter file(s) after resolution attempts"
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print(f"Continuing with {len(fixed_chapters)} available chapters")
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chapter_infos = fixed_chapters
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else:
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return False, f"Missing {len(unresolved_chapters)} chapter file(s) after resolution attempts"
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else:
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# Update chapter_infos with the fixed list
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chapter_infos = fixed_chapters
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if extra_verbose:
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print("All missing files resolved, proceeding with conversion")
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# Final verification before proceeding
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for chapter_info in chapter_infos:
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if not os.path.exists(chapter_info['filename']):
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if extra_verbose:
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print(f"Fatal error: File still missing after resolution: {chapter_info['filename']}")
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return False, f"File still missing after resolution: {os.path.basename(chapter_info['filename'])}"
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# Create a temporary directory for extraction
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with tempfile.TemporaryDirectory() as temp_dir:
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# Extract all chapters in order
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for chapter_info in tqdm(chapter_infos, desc=f"Extracting chapters for Volume {volume_num}", disable=not verbose):
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chapter_dir = os.path.join(temp_dir, f"chapter_{chapter_info['chapter_str'].zfill(3)}")
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os.makedirs(chapter_dir, exist_ok=True)
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if verbose:
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print(f"Extracting chapter {chapter_info['chapter_str']}")
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if extra_verbose:
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print(f"File: {chapter_info['filename']}")
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if not os.path.exists(chapter_info['filename']):
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print(f" ERROR: File does not exist!")
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continue
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try:
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# Extract the chapter
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with zipfile.ZipFile(chapter_info['filename'], 'r') as zf:
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file_list = sorted(zf.namelist())
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if extra_verbose:
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print(f" Contains {len(file_list)} files:")
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for i, file_name in enumerate(file_list):
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if file_name.endswith('/'): # Skip directories
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continue
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if extra_verbose and i < 10: # Show first 10 files only
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print(f" - {file_name}")
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# Extract with a standardized naming pattern: chapterXXX_pageYYY.ext
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base, ext = os.path.splitext(os.path.basename(file_name))
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new_name = f"chapter{chapter_info['chapter_str'].zfill(3)}_{i+1:03d}{ext}"
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# Extract file to temp directory
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try:
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with zf.open(file_name) as source, open(os.path.join(chapter_dir, new_name), 'wb') as target:
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shutil.copyfileobj(source, target)
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except Exception as file_error:
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if extra_verbose:
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print(f" ERROR extracting {file_name}: {str(file_error)}")
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if extra_verbose and len(file_list) > 10:
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print(f" ... and {len(file_list) - 10} more files")
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except Exception as e:
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return False, f"Error extracting chapter {chapter_info['chapter_str']}: {str(e)}"
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# Create the volume CBZ
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if verbose:
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print(f"Creating volume CBZ: {volume_filename}")
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try:
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with zipfile.ZipFile(output_path, 'w') as volume_zip:
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# Add all files from all chapters in order
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chapter_dirs = sorted(os.listdir(temp_dir))
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for chapter_dir in chapter_dirs:
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chapter_path = os.path.join(temp_dir, chapter_dir)
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if os.path.isdir(chapter_path):
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chapter_files = sorted(os.listdir(chapter_path))
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if extra_verbose:
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print(f"Adding directory: {chapter_dir} ({len(chapter_files)} files)")
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for file in chapter_files:
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file_path = os.path.join(chapter_path, file)
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arc_name = os.path.join(chapter_dir, file)
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if extra_verbose and chapter_files.index(file) < 5:
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print(f" - Adding {arc_name}")
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volume_zip.write(file_path, arc_name)
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except Exception as e:
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return False, f"Error creating volume ZIP: {str(e)}"
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return True, "Created"
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except Exception as e:
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return False, str(e)
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