246 lines
6.9 KiB
Python
246 lines
6.9 KiB
Python
import os
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import getopt
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import sys
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import pathlib
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import mobject
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total_proc = 0
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total_succ = 0
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total_error = 0
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total_cover_exists = 0
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total_cover_written = 0
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cover_missing = []
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errors = []
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input_dir = None
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output_dir = None
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cover_dir = None
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overwrite_cover = False
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cover_arts = []
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WILDCARD_MATCH_SCORE = 1
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ARTIST_MATCH_SCORE = 10
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ALBUM_MATCH_SCORE = 100
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TITLE_MATCH_SCORE = 1000
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escape_list : list[tuple[str, str]] = [
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("%..%" , ":")
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]
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def escape_str(input : str) -> str:
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for tup in escape_list:
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input = input.replace(tup[0], tup[1])
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return input
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# to get a > 0 score, each field either must match or the cover tuple is wildcare (None)
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def calc_cover_score(artist: list[str], album: list[str], title: list[str], tup : tuple) -> int:
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score = 0
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if (tup[0] == artist):
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score += ARTIST_MATCH_SCORE
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elif (tup[0] == [""]):
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score += WILDCARD_MATCH_SCORE
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else:
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# mismatched artist, discard
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return 0
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if (tup[1] == album):
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score += ALBUM_MATCH_SCORE
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elif (tup[1] == [""]):
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score += WILDCARD_MATCH_SCORE
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else:
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# mismatched album, discard
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return 0
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if (tup[2] == title):
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score += TITLE_MATCH_SCORE
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elif (tup[2] == [""]):
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score += WILDCARD_MATCH_SCORE
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else:
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# mismatched title, discard
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return 0
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return score
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# returns the idx into cover_arts array.
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# < 0 means no match
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def find_best_cover(artist: list[str], album: list[str], title: list[str]) -> int:
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best_idx = -1
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best_score = 0
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for i in range(0, len(cover_arts)):
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score = calc_cover_score(artist, album, title, cover_arts[i])
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if score > best_score:
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best_idx = i
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best_score = score
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return best_idx
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def plus_str_to_list(s : str) -> list[str]:
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ss : list[str] = s.split("+")
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ret = []
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for sss in ss:
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ret.append(sss)
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return ret
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def parse_triple(f: str, escape : bool = True) -> tuple[list[str], list[str], list[str]]:
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triple = os.path.splitext(os.path.basename(f))[0].split("_")
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album = ""
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title = ""
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artist = plus_str_to_list(escape_str(triple[0]) if escape else triple[0])
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if len(triple) >= 2:
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album = plus_str_to_list(escape_str(triple[1]) if escape else triple[1])
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if len(triple) >= 3:
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title = plus_str_to_list(escape_str(triple[2]) if escape else triple[2])
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return (artist, album, title)
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def load_cover_arts():
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global cover_arts
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if cover_dir == None:
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return
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cdir = cover_dir
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files = os.listdir(cdir)
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for f in files:
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try:
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artist, album, title = parse_triple(f)
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f = os.path.join(cover_dir, f)
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print("Processing cover art - " + f)
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fp = pathlib.Path(f)
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if (fp.suffix.lower() == ".png"):
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type = "PNG"
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else:
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type = "JPEG"
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with open(f,'rb') as img:
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cover_arts.append((artist, album, title, img.read(), type, f))
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print(" Loading cover art - " + f + " Artist: " + str(artist) + " Album: " + str(album) + " Title: " + str(title) + " Type: " + type)
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except Exception as e:
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print(" Skipping due to Exception - " + str(e))
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print("")
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def usage():
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print("Usage: python musik.py [options]\n\n\
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options:\n\
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-h : show usage.\n\
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-i input : input directory\n\
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-o output : output directory\n\
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-c cover : cover arts page\n")
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def process_file(f: str, odir: str):
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global total_cover_exists
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global total_cover_written
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global total_succ
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global total_error
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global total_proc
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try:
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print("Processing file - " + f)
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total_proc += 1
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artist, album, title = parse_triple(f)
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fartist, falbum, _ = parse_triple(f, escape=False)
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if len(title) == 0:
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raise Exception("No title")
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mobj = mobject.create_mobject(f)
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print(f" Artist: \"{mobj.get_artist()}\" -> \"{artist}\"\n" +
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f" Album: \"{mobj.get_album()}\" -> \"{album}\"\n" +
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f" Title: \"{mobj.get_title()}\" -> \"{title}\"")
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mobj.set_artist(artist)
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mobj.set_album_artist(artist)
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mobj.set_album(album)
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mobj.set_title(title)
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if (mobj.get_cover() == None or overwrite_cover):
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cover_idx = find_best_cover(artist, album, title)
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if (cover_idx >= 0):
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mobj.set_cover(cover_arts[cover_idx][3], cover_arts[cover_idx][4] == "PNG")
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print(f" Cover: <{'None' if mobj.get_cover() == None else 'Exists'}> -> \"{cover_arts[cover_idx][5]}\"")
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total_cover_written += 1
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else:
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print(f" Cover: <Missing>")
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cover_missing.append(f)
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else:
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print(" Cover: <Exists>")
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total_cover_exists += 1
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target_dir = os.path.join(odir, "+".join(fartist), "+".join(falbum))
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os.makedirs(target_dir, exist_ok = True)
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target_f = os.path.join(target_dir, os.path.basename(f))
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with open(target_f, "wb") as tf:
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tf.write(mobj.get_bytes())
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print(" Written file to: " + target_f)
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total_succ += 1
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except Exception as e:
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total_error += 1
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errors.append(f)
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print(" Skipping due to exception - %s" % str(e))
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print("")
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def process_directory(idir: str, odir: str):
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print("Processing directory - " + idir)
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files = os.listdir(idir)
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for f in files:
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f = os.path.join(idir, f)
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if os.path.isdir(f):
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process_directory(f, odir)
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else:
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process_file(f, odir)
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def main():
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global input_dir
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global output_dir
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global cover_dir
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global overwrite_cover
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try:
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opts , _ = getopt.getopt(sys.argv[1:], "hi:o:c:f")
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except getopt.GetoptError as err:
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print(str(err))
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usage()
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sys.exit(1)
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for o, a in opts:
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if o == "-h":
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usage()
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sys.exit(0)
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elif o == "-i":
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input_dir = a
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elif o == "-o":
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output_dir = a
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elif o == "-c":
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cover_dir = a
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elif o == "-f":
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overwrite_cover = True
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else:
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print("Unrecognized option: " + o)
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sys.exit(1)
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if input_dir == None or output_dir == None:
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print("Must specify both -i and -o")
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sys.exit(1)
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load_cover_arts()
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process_directory(input_dir, output_dir)
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print("\nSummary - Files: " + str(total_proc) + ". Processed: " + str(total_succ) + ". Cover Exists: " + str(total_cover_exists) + ". Cover Written: " + str(total_cover_written))
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if (len(errors) > 0):
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print(f"Errors: {len(errors)}")
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for f in errors:
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print(f" {f}")
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if (len(cover_missing) > 0):
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print(f"Cover Missing: {len(cover_missing)}")
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for f in cover_missing:
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print(f" {f}")
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main()
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