2 ### -*- mode: python; coding: utf-8 -*-
4 from contextlib import contextmanager
10 class ExpectedError (Exception): pass
19 def filter(value, func = None, dflt = None):
20 if value is None: return dflt
21 elif func is None: return value
22 else: return func(value)
25 if not cond: raise ExpectedError(msg)
27 def lookup(dict, key, msg):
29 except KeyError: raise ExpectedError(msg)
31 def forget(dict, key):
36 if not s.isdigit(): raise ExpectedError("bad integer `%s'" % s)
42 me._i, me._n = 0, len(s)
44 s, i, n = me._s, me._i, me._n
46 if not s[i].isspace(): return i
51 begin = i = me._wordstart()
52 if begin < 0: return None
53 while i < n and not s[i].isspace(): i += 1
58 begin = me._wordstart()
59 if begin < 0: return None
60 else: return s[begin:].rstrip()
62 URL_SAFE_P = 256*[False]
64 b"ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
65 b"abcdefghijklmnopqrstuvwxyz" \
66 b"0123456789" b"!$%-.,/":
69 return "".join((URL_SAFE_P[ch] and chr(ch) or "%%%02x" % ch
70 for ch in s.encode("UTF-8")))
72 PROG = OS.path.basename(SYS.argv[0])
74 class BaseLocation (object):
76 SYS.stderr.write("%s: %s%s\n" % (PROG, me._loc(), exc))
78 class DummyLocation (BaseLocation):
79 def _loc(me): return ""
81 class FileLocation (BaseLocation):
82 def __init__(me, fn, lno = 1): me._fn, me._lno = fn, lno
83 def _loc(me): return "%s:%d: " % (me._fn, me._lno)
84 def stepline(me): me._lno += 1
88 class Source (object):
90 TITLEP = CHAPTERP = False
94 me.used_titles = dict()
95 me.used_chapters = set()
97 def url(me, title = None, start_chapter = None, end_chapter = None):
99 if me.TITLEP: raise ExpectedError("missing title number")
100 if start_chapter is not None or end_chapter is not None:
101 raise ExpectedError("can't specify chapter without title")
104 raise ExpectedError("can't specify title with `%s'" % me.fn)
105 elif start_chapter is None:
106 if end_chapter is not None:
107 raise ExpectedError("can't specify end chapter without start chapter")
108 suffix = "#%d" % title
109 elif not me.CHAPTERP:
110 raise ExpectedError("can't specify chapter with `%s'" % me.fn)
111 elif end_chapter is None:
112 suffix = "#%d:%d" % (title, start_chapter)
114 suffix = "#%d:%d-%d:%d" % (title, start_chapter, title, end_chapter - 1)
115 if end_chapter is not None:
116 keys = [(title, ch) for ch in range(start_chapter, end_chapter)]
117 set = me.used_chapters
119 keys, set = [title], me.used_titles
123 raise ExpectedError("`%s' already used" % me.fn)
124 elif end_chapter is None:
125 raise ExpectedError("`%s' title %d already used" % (me.fn, title))
127 raise ExpectedError("`%s' title %d chapter %d already used" %
128 (me.fn, title, k[1]))
129 if end_chapter is not None:
130 for ch in range(start_chapter, end_chapter):
131 me.used_chapters.add((title, ch))
132 return me.PREFIX + ROOT + urlencode(me.fn) + suffix
134 class VideoDisc (Source):
136 TITLEP = CHAPTERP = True
138 def __init__(me, fn, *args, **kw):
139 super().__init__(fn, *args, **kw)
142 class VideoSeason (object):
143 def __init__(me, i, title):
147 def set_episode_disc(me, i, disc):
149 raise ExpectedError("season %d episode %d already taken" % (me.i, i))
150 me.episodes[i] = disc; disc.neps += 1
152 def match_group(m, *groups, dflt = None, mustp = False):
155 except IndexError: continue
156 if s is not None: return s
157 if mustp: raise ValueError("no match found")
160 class VideoDir (object):
162 _R_ISO_PRE = list(map(lambda pat: RX.compile("^" + pat + r"\.iso$", RX.X),
163 [r""" S? (?P<si> \d+) [A-Z]? \. \ (?P<stitle> .*) —
166 r""" S (?P<si> \d+) (?: D \d+)? \. \ (?P<epex> .*) """,
167 r""" S (?P<si> \d+) \. \ (?P<epex> E \d+ .*) """,
168 r""" S (?P<si> \d+) \. \ (?P<epex> E \d+ .*) """,
169 r""" S (?P<si> \d+) (?P<epex> E \d+) \. \ .* """,
170 r""" \d+ \. \ (?P<epex> [ES] \d+ .*) """,
171 r""" (?P<epnum> \d+ ) \. \ .* """]))
173 _R_ISO_EP = RX.compile(r""" ^
174 (?: S (?P<si> \d+) \ )?
175 E (?P<ei> \d+) (?: – (?P<ej> \d+))? $
178 def __init__(me, dir):
180 fns = OS.listdir(OS.path.join(ROOT, dir))
185 path = OS.path.join(dir, fn)
186 if not fn.endswith(".iso"): continue
187 #print(";; `%s'" % path, file = SYS.stderr)
188 for r in me._R_ISO_PRE:
192 #print(";;\tignored (regex mismatch)", file = SYS.stderr)
195 si = filter(match_group(m, "si"), int)
196 stitle = match_group(m, "stitle")
198 check(si is not None or stitle is None,
199 "explicit season title without number in `%s'" % fn)
201 if season is None or si != season.i:
202 check(season is None or si == season.i + 1,
204 (si, season is None and -1 or season.i + 1))
205 check(si not in seasons, "season %d already seen" % si)
206 seasons[si] = season = VideoSeason(si, stitle)
208 check(stitle == season.title,
209 "season title `%s' /= `%s'" % (stitle, season.title))
211 disc = VideoDisc(path)
213 any, bad = False, False
214 epnum = match_group(m, "epnum")
215 if epnum is not None: eplist = ["E" + epnum]
216 else: eplist = match_group(m, "epex", mustp = True).split(", ")
217 for eprange in eplist:
218 mm = me._R_ISO_EP.match(eprange)
220 #print(";;\t`%s'?" % eprange, file = SYS.stderr)
222 if not any: any = True
223 i = filter(mm.group("si"), int)
226 except KeyError: ts = seasons[i] = VideoSeason(i, None)
228 ts = season = seasons[1] = VideoSeason(1, None)
229 start = filter(mm.group("ei"), int)
230 end = filter(mm.group("ej"), int, start)
231 for k in range(start, end + 1):
232 ts.set_episode_disc(k, disc)
233 #print(";;\tepisode %d.%d" % (ts.i, k), file = SYS.stderr)
235 #print(";;\tignored", file = SYS.stderr)
238 raise ExpectedError("bad ep list in `%s'", fn)
241 class AudioDisc (Source):
243 TITLEP = CHAPTERP = False
245 class AudioEpisode (Source):
247 TITLEP = CHAPTERP = False
248 def __init__(me, fn, i, *args, **kw):
249 super().__init__(fn, *args, **kw)
252 class AudioDir (object):
254 _R_FLAC = RX.compile(r""" ^
260 def __init__(me, dir):
262 fns = OS.listdir(OS.path.join(ROOT, dir))
267 path = OS.path.join(dir, fn)
268 if not fn.endswith(".flac"): continue
269 m = me._R_FLAC.match(fn)
271 i = filter(m.group(1), int)
273 check(i == last_i + 1, "episode %d /= %d" % (i, last_i + 1))
274 episodes[i] = AudioEpisode(path, i)
276 me.episodes = episodes
278 class Chapter (object):
279 def __init__(me, episode, title, i):
280 me.title, me.i = title, i
281 me.url = episode.source.url(episode.tno, i, i + 1)
283 class Episode (object):
284 def __init__(me, season, i, neps, title, src, tno = None,
285 startch = None, endch = None):
287 me.i, me.neps, me.title = i, neps, title
289 me.source, me.tno = src, tno
290 me.url = src.url(tno, startch, endch)
291 def add_chapter(me, title, j):
292 ch = Chapter(me, title, j)
293 me.chapters.append(ch)
296 return me.season._eplabel(me.i, me.neps, me.title)
298 class BaseSeason (object):
299 def __init__(me, series, implicitp = False):
302 me.implicitp = implicitp
303 me.ep_i, episodes = 1, []
304 def add_episode(me, j, neps, title, src, tno, startch, endch):
305 ep = Episode(me, j, neps, title, src, tno, startch, endch)
306 me.episodes.append(ep)
307 src.nuses += neps; me.ep_i += neps
309 def _epnames(me, i, neps):
310 playlist = me.series.playlist
311 if neps == 1: return playlist.epname, "%d" % i
312 elif neps == 2: return playlist.epnames, "%d, %d" % (i, i + 1)
313 else: return playlist.epnames, "%d–%d" % (i, i + neps - 1)
315 class Season (BaseSeason):
316 def __init__(me, series, title, i, *args, **kw):
317 super().__init__(series, *args, **kw)
318 me.title, me.i = title, i
319 def _eplabel(me, i, neps, title):
320 epname, epn = me._epnames(i, neps)
322 if me.implicitp: label = "%s %s" % (epname, epn)
323 elif me.title is None: label = "%s %d.%s" % (epname, me.i, epn)
324 else: label = "%s—%s %s" % (me.title, epname, epn)
326 if me.implicitp: label = "%s. %s" % (epn, title)
327 elif me.title is None: label = "%d.%s. %s" % (me.i, epn, title)
328 else: label = "%s—%s. %s" % (me.title, epn, title)
331 class MovieSeason (BaseSeason):
332 def __init__(me, series, title, *args, **kw):
333 super().__init__(series, *args, **kw)
336 def add_episode(me, j, neps, title, src, tno, startch, endch):
337 if me.title is None and title is None:
338 raise ExpectedError("movie or movie season must have a title")
339 return super().add_episode(j, neps, title, src, tno, startch, endch)
340 def _eplabel(me, i, neps, title):
344 epname, epn = me._epnames(i, neps)
345 label = "%s—%s %s" % (me.title, epname, epn)
347 label = "%s—%s" % (me.title, title)
350 class Series (object):
351 def __init__(me, playlist, name, title = None, wantedp = True):
352 me.playlist = playlist
353 me.name, me.title = name, title
356 def _add_season(me, season):
357 me.cur_season = season
358 def add_season(me, title, i, implicitp = False):
359 me._add_season(Season(me, title, i, implicitp))
360 def add_movies(me, title = None):
361 me._add_season(MovieSeason(me, title))
362 def ensure_season(me):
363 if me.cur_season is None: me.add_season(None, 1, implicitp = True)
368 class Playlist (object):
372 me.epname, me.epnames = "Episode", "Episodes"
374 def add_episode(me, episode):
375 me.episodes.append(episode)
378 me.seasons.append(me.episodes)
382 for season in me.seasons:
386 if me.nseries > 1: label = ep.season.series.title + " " + label
388 f.write("#EXTINF:0,,%s\n%s\n" % (label, ep.url))
390 for ch in ep.chapters:
391 f.write("#EXTINF:0,,%s: %s\n%s\n" %
392 (label, ch.title, ch.url))
398 class EpisodeListParser (object):
400 def __init__(me, series_wanted = None, chapters_wanted_p = False):
402 me._cur_episode = me._cur_chapter = None
403 me._series = {}; me._vdirs = {}; me._audirs = {}; me._isos = {}
404 me._series_wanted = series_wanted
405 me._chaptersp = chapters_wanted_p
406 if series_wanted is None: me._mode = MODE_UNSET
407 else: me._mode = MODE_MULTI
409 def _bad_keyval(me, cmd, k, v):
410 raise ExpectedError("invalid `!%s' option `%s'" %
411 (cmd, v if k is None else k))
413 def _keyvals(me, opts):
415 for kv in opts.split(","):
416 try: sep = kv.index("=")
417 except ValueError: yield None, kv
418 else: yield kv[:sep], kv[sep + 1:]
420 def _set_mode(me, mode):
421 if me._mode == MODE_UNSET:
423 elif me._mode != mode:
424 raise ExpectedError("inconsistent single-/multi-series usage")
426 def _get_series(me, name):
428 me._set_mode(MODE_SINGLE)
429 try: series = me._series[None]
431 series = me._series[None] = Series(me._pl, None)
434 me._set_mode(MODE_MULTI)
435 series = lookup(me._series, name, "unknown series `%s'" % name)
438 def _opts_series(me, cmd, opts):
440 for k, v in me._keyvals(opts):
441 if k is None: name = v
442 else: me._bad_keyval(cmd, k, v)
443 return me._get_series(name)
445 def _auto_epsrc(me, series):
446 dir = lookup(me._vdirs, series.name, "no active video directory")
447 season = series.ensure_season()
448 check(season.i is not None, "must use explicit iso for movie seasons")
449 vseason = lookup(dir.seasons, season.i,
450 "season %d not found in video dir `%s'" %
452 src = lookup(vseason.episodes, season.ep_i,
453 "episode %d.%d not found in video dir `%s'" %
454 (season.i, season.ep_i, dir.dir))
457 def _process_cmd(me, ww):
459 cmd = ww.nextword(); check(cmd is not None, "missing command")
460 try: sep = cmd.index(":")
461 except ValueError: opts = None
462 else: cmd, opts = cmd[:sep], cmd[sep + 1:]
466 for k, v in me._keyvals(opts):
467 if k is None: name = v
468 else: me._bad_keyval(cmd, k, v)
469 check(name is not None, "missing series name")
470 check(name not in me._series, "series `%s' already defined" % name)
471 title = ww.rest(); check(title is not None, "missing title")
472 me._set_mode(MODE_MULTI)
473 me._series[name] = series = Series(me._pl, name, title,
474 me._series_wanted is None or
475 name in me._series_wanted)
476 if series.wantedp: me._pl.nseries += 1
478 elif cmd == "season":
479 series = me._opts_series(cmd, opts)
481 check(w is not None, "missing season number")
483 if not series.wantedp: return
484 series.add_movies(ww.rest())
486 title = ww.rest(); i = getint(w)
487 if not series.wantedp: return
488 series.add_season(ww.rest(), getint(w), implicitp = False)
489 me._cur_episode = me._cur_chapter = None
492 elif cmd == "epname":
493 for k, v in me._keyvals(opts): me._bad_keyval("epname", k, v)
494 name = ww.rest(); check(name is not None, "missing episode name")
495 try: sep = name.index(",")
496 except ValueError: names = name + "s"
497 else: name, names = name[:sep], name[sep + 1:]
498 me._pl.epname, me._pl.epnames = name, names
501 series = me._opts_series(cmd, opts)
502 w = ww.rest(); check(w is not None, "missing episode number")
504 if not series.wantedp: return
505 series.ensure_season().ep_i = epi
508 series = me._opts_series(cmd, opts)
509 fn = ww.rest(); check(fn is not None, "missing filename")
510 if not series.wantedp: return
511 if fn == "-": forget(me._isos, series.name)
513 check(OS.path.exists(OS.path.join(ROOT, fn)),
514 "iso file `%s' not found" % fn)
515 me._isos[series.name] = VideoDisc(fn)
518 series = me._opts_series(cmd, opts)
519 dir = ww.rest(); check(dir is not None, "missing directory")
520 if not series.wantedp: return
521 if dir == "-": forget(me._vdirs, series.name)
522 else: me._vdirs[series.name] = VideoDir(dir)
525 series = me._opts_series(cmd, opts)
526 dir = ww.rest(); check(dir is not None, "missing directory")
527 if not series.wantedp: return
528 if dir == "-": forget(me._audirs, series.name)
529 else: me._audirs[series.name] = AudioDir(dir)
531 elif cmd == "displaced":
532 series = me._opts_series(cmd, opts)
533 w = ww.rest(); check(w is not None, "missing count"); n = getint(w)
534 src = me._auto_epsrc(series)
537 raise ExpectedError("unknown command `%s'" % cmd)
539 def _process_episode(me, ww):
541 opts = ww.nextword(); check(opts is not None, "missing title/options")
542 ti = None; sname = None; neps = 1; epi = None; loch = hich = None
543 for k, v in me._keyvals(opts):
545 if v.isdigit(): ti = int(v)
546 elif v == "-": ti = "-"
548 elif k == "s": sname = v
549 elif k == "n": neps = getint(v)
550 elif k == "ep": epi = getint(v)
552 try: sep = v.index("-")
553 except ValueError: loch, hich = getint(v), None
554 else: loch, hich = getint(v[:sep]), getint(v[sep + 1:]) + 1
555 else: raise ExpectedError("unknown episode option `%s'" % k)
556 check(ti is not None, "missing title number")
557 series = me._get_series(sname)
558 me._cur_chapter = None
561 if not series.wantedp: return
562 season = series.ensure_season()
563 if epi is None: epi = season.ep_i
566 check(season.implicitp, "audio source, but explicit season")
567 dir = lookup(me._audirs, series.name,
568 "no title, and no audio directory")
569 src = lookup(dir.episodes, season.ep_i,
570 "episode %d not found in audio dir `%s'" % (epi, dir.dir))
573 try: src = me._isos[series.name]
574 except KeyError: src = me._auto_epsrc(series)
576 episode = season.add_episode(epi, neps, title, src, ti, loch, hich)
577 me._pl.add_episode(episode)
578 me._cur_episode = episode
580 def _process_chapter(me, ww):
581 check(me._cur_episode is not None, "no current episode")
582 check(me._cur_episode.source.CHAPTERP,
583 "episode source doesn't allow chapters")
585 if me._cur_chapter is None: i = 1
586 else: i = me._cur_chapter.i + 1
587 me._cur_chapter = me._cur_episode.add_chapter(ww.rest(), i)
589 def parse_file(me, fn):
590 with location(FileLocation(fn, 0)) as floc:
591 with open(fn, "r") as f:
594 sline = line.lstrip()
595 if sline == "" or sline.startswith(";"): continue
597 if line.startswith("!"): me._process_cmd(Words(line[1:]))
598 elif not line[0].isspace(): me._process_episode(Words(line))
599 else: me._process_chapter(Words(line))
604 for name, vdir in me._vdirs.items():
605 if not me._series[name].wantedp: continue
606 for s in vdir.seasons.values():
607 for d in s.episodes.values():
609 for adir in me._audirs.values():
610 for d in adir.episodes.values():
612 for d in sorted(discs, key = lambda d: d.fn):
613 if d.neps is not None and d.neps != d.nuses:
614 raise ExpectedError("disc `%s' has %d episodes, used %d times" %
615 (d.fn, d.neps, d.nuses))
618 ROOT = "/mnt/dvd/archive/"
620 op = OP.OptionParser \
621 (usage = "%prog [-c] [-s SERIES] EPLS",
622 description = "Generate M3U playlists from an episode list.")
623 op.add_option("-c", "--chapters",
624 dest = "chaptersp", action = "store_true", default = False,
625 help = "Output individual chapter names")
626 op.add_option("-s", "--series",
627 dest = "series", type = "str", default = None,
628 help = "Output only the listed SERIES (comma-separated)")
629 opts, argv = op.parse_args()
630 if len(argv) != 1: op.print_usage(file = SYS.stderr); SYS.exit(2)
631 if opts.series is None:
634 series_wanted = set()
635 for name in opts.series.split(","): series_wanted.add(name)
637 ep = EpisodeListParser(series_wanted, opts.chaptersp)
638 ep.parse_file(argv[0])
641 except (ExpectedError, IOError, OSError) as e: