160 lines
4.9 KiB
Python
Executable file
160 lines
4.9 KiB
Python
Executable file
#!/usr/bin/env python3
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# pylint: disable=C0103
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import logging
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import os
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import re
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import subprocess
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import typing
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import coloredlogs
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import progressbar
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coloredlogs.install(level="DEBUG", fmt="%(levelname)s %(message)s")
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log = logging.getLogger()
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# Constants
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SOURCE_FOLDER = os.path.join(os.path.expanduser("~"), "Musiques")
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OUTPUT_FOLDER = os.path.join(os.path.expanduser("~"), ".MusiqueCompressed")
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CONVERSIONS = {"flac": "opus"}
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FORBIDDEN_EXTENSIONS = ["jpg", "png", "pdf", "ffs_db"]
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FORGIVEN_FILENAMES = [
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"cover.jpg",
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"front.jpg",
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"folder.jpg",
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"cover.png",
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"front.png",
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"folder.png",
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]
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IGNORED_EMPTY_FOLDER = [".stfolder"]
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RESTRICT_CHARACTERS = '[\0\\/:*"<>|]' # FAT32, NTFS
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# RESTRICT_CHARACTERS = '[:/]' # HFS, HFS+
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# RESTRICT_CHARACTERS = '[\0/]' # ext2-4, linux-based?
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act = True
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# TODO FEAT Make the directory structure the same as the base one and
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# remove IGNORED_EMPTY_FOLDER variable
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# Listing files
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log.info("Listing files")
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sourceFiles = dict()
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for root, dirs, files in os.walk(SOURCE_FOLDER):
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for f in files:
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fullPath = os.path.join(root, f)
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path = os.path.relpath(fullPath, SOURCE_FOLDER)
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sourceFiles[path] = os.path.getctime(fullPath)
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outputFiles = dict()
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for root, dirs, files in os.walk(OUTPUT_FOLDER):
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for f in files:
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fullPath = os.path.join(root, f)
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path = os.path.relpath(fullPath, OUTPUT_FOLDER)
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outputFiles[path] = os.path.getctime(fullPath)
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# Sorting files
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remainingConversions = dict()
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extraFiles = set(outputFiles.keys())
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def convertPath(path: str) -> typing.Optional[str]:
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filename, extension = os.path.splitext(path)
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extension = extension[1:].lower()
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# Remove unwanted characters from filename
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filename_parts = os.path.normpath(filename).split(os.path.sep)
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filename_parts = [re.sub(RESTRICT_CHARACTERS, "_", part) for part in filename_parts]
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filename = os.path.sep.join(filename_parts)
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# If the extension isn't allowed
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if extension in FORBIDDEN_EXTENSIONS:
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basename = os.path.basename(path)
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# And the filename is not an exception
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if basename not in FORGIVEN_FILENAMES:
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# This file shouldn't be copied nor converted
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return None
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# If this needs a conversion
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elif extension in CONVERSIONS:
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extension = CONVERSIONS[extension]
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return filename + "." + extension
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# In all other case, this is a simple copy
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return path
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log.info("Determining action over %d files", len(sourceFiles))
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for sourceFile in sourceFiles:
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outputFile = convertPath(sourceFile)
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# If the file should not be converted, do nothing
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if not outputFile:
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continue
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# If the file already has something as an output
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elif outputFile in outputFiles:
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extraFiles.remove(outputFile)
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# If the output file is newer than the source file, do not initiate a
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# conversion
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if outputFiles[outputFile] >= sourceFiles[sourceFile]:
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continue
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# If the file needs to be converted, do it
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remainingConversions[sourceFile] = outputFile
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log.debug("%d actions will need to be taken", len(remainingConversions))
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log.info("Copying files that do not require a conversion")
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conversions = set()
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for sourceFile in remainingConversions:
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outputFile = remainingConversions[sourceFile]
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# Creating folder if it doesn't exists
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fullOutputFile = os.path.join(OUTPUT_FOLDER, outputFile)
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fullOutputDir = os.path.dirname(fullOutputFile)
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if act:
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os.makedirs(fullOutputDir, exist_ok=True)
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# Converting
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fullSourceFile = os.path.join(SOURCE_FOLDER, sourceFile)
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if sourceFile == outputFile:
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log.debug("%s → %s", fullSourceFile, fullOutputFile)
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if act and os.path.isfile(fullOutputFile):
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os.remove(fullOutputFile)
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os.link(fullSourceFile, fullOutputFile)
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else:
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conversions.add((fullSourceFile, fullOutputFile))
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log.info("Removing extra files")
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for extraFile in extraFiles:
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fullExtraFile = os.path.join(OUTPUT_FOLDER, extraFile)
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log.debug("× %s", fullExtraFile)
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if act:
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os.remove(fullExtraFile)
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log.info("Listing files that will be converted")
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for fullSourceFile, fullOutputFile in conversions:
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log.debug("%s ⇒ %s", fullSourceFile, fullOutputFile)
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log.info("Converting files")
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for fullSourceFile, fullOutputFile in progressbar.progressbar(conversions):
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cmd = [
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"ffmpeg",
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"-y",
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"-i",
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fullSourceFile,
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"-c:a",
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"libopus",
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"-movflags",
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"+faststart",
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"-b:a",
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"128k",
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"-vbr",
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"on",
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"-compression_level",
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"10",
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fullOutputFile,
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]
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if act:
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subprocess.run(cmd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
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else:
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print(cmd)
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# Removing empty dirs
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for root, dirs, files in os.walk(OUTPUT_FOLDER):
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if not dirs and not files:
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dirBasename = os.path.basename(root)
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if act and dirBasename not in IGNORED_EMPTY_FOLDER:
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os.rmdir(root)
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