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 some_group(m, *gg):
155 if s is not None: return s
158 class VideoDir (object):
160 _R_ISO_PRE = RX.compile(r""" ^
162 (?: \. \ (?P<st> .*) — (?: D \d+ \. \ )? |
166 (?P<epnum> \d+) \. \ )
168 (?: S \d+ \ )? E \d+ (?: – \d+)?
169 (?: , \ (?: S \d+ \ )? E \d+ (?: – \d+)?)*) |
170 (?P<epname> E \d+) \. \ .* |
175 _R_ISO_EP = RX.compile(r""" ^
176 (?: S (?P<si> \d+) \ )?
177 E (?P<ei> \d+) (?: – (?P<ej> \d+))? $
180 def __init__(me, dir):
182 fns = OS.listdir(OS.path.join(ROOT, dir))
187 path = OS.path.join(dir, fn)
188 if not fn.endswith(".iso"): continue
189 m = me._R_ISO_PRE.match(fn)
191 #print(";; `%s' ignored (regex mismatch)" % path, file = SYS.stderr)
194 i = filter(m.group("si"), int)
195 stitle = m.group("st")
196 check(i is not None or stitle is None,
197 "explicit season title without number in `%s'" % fn)
199 if season is None or i != season.i:
200 check(season is None or i == season.i + 1,
202 (i, season is None and -1 or season.i + 1))
203 check(i not in seasons, "season %d already seen" % i)
204 seasons[i] = season = VideoSeason(i, stitle)
206 check(stitle == season.title,
207 "season title `%s' /= `%s'" % (stitle, season.title))
209 disc = VideoDisc(path)
211 any, bad = False, False
212 epname = m.group("epname")
213 epexpr = m.group("eplist")
214 epnum = m.group("epnum")
215 if epname is not None: eplist = [epname]
216 elif epexpr is not None: eplist = epexpr.split(", ")
217 elif epnum is not None: eplist = ["E" + epnum]
219 #print(";; `%s'" % path, file = SYS.stderr)
220 for eprange in eplist:
221 mm = me._R_ISO_EP.match(eprange)
223 #print(";;\t`%s'?" % eprange, file = SYS.stderr)
225 if not any: any = True
226 i = filter(mm.group("si"), int)
229 except KeyError: ts = seasons[i] = VideoSeason(i, None)
231 ts = season = seasons[1] = VideoSeason(1, None)
232 start = filter(mm.group("ei"), int)
233 end = filter(mm.group("ej"), int, start)
234 for k in range(start, end + 1):
235 ts.set_episode_disc(k, disc)
236 #print(";;\tepisode %d.%d" % (ts.i, k), file = SYS.stderr)
238 #print(";;\tignored" % path, file = SYS.stderr)
241 raise ExpectedError("bad ep list in `%s'", fn)
244 class AudioDisc (Source):
246 TITLEP = CHAPTERP = False
248 class AudioEpisode (Source):
250 TITLEP = CHAPTERP = False
251 def __init__(me, fn, i, *args, **kw):
252 super().__init__(fn, *args, **kw)
255 class AudioDir (object):
257 _R_FLAC = RX.compile(r""" ^
263 def __init__(me, dir):
265 fns = OS.listdir(OS.path.join(ROOT, dir))
270 path = OS.path.join(dir, fn)
271 if not fn.endswith(".flac"): continue
272 m = me._R_FLAC.match(fn)
274 i = filter(m.group(1), int)
276 check(i == last_i + 1, "episode %d /= %d" % (i, last_i + 1))
277 episodes[i] = AudioEpisode(path, i)
279 me.episodes = episodes
281 class Chapter (object):
282 def __init__(me, episode, title, i):
283 me.title, me.i = title, i
284 me.url = episode.source.url(episode.tno, i, i + 1)
286 class Episode (object):
287 def __init__(me, season, i, neps, title, src, tno = None, startch = None):
289 me.i, me.neps, me.title = i, neps, title
291 me.source, me.tno = src, tno
292 me.url = src.url(tno, startch, None)
293 def add_chapter(me, title, j):
294 ch = Chapter(me, title, j)
295 me.chapters.append(ch)
298 return me.season._eplabel(me.i, me.neps, me.title)
300 class BaseSeason (object):
301 def __init__(me, series, implicitp = False):
304 me.implicitp = implicitp
305 me.ep_i, episodes = 1, []
306 def add_episode(me, j, neps, title, src, tno, startch):
307 ep = Episode(me, j, neps, title, src, tno, startch)
308 me.episodes.append(ep)
309 src.nuses += neps; me.ep_i += neps
311 def _epnames(me, i, neps):
312 playlist = me.series.playlist
313 if neps == 1: return playlist.epname, "%d" % i
314 elif neps == 2: return playlist.epnames, "%d, %d" % (i, i + 1)
315 else: return playlist.epnames, "%d–%d" % (i, i + neps - 1)
317 class Season (BaseSeason):
318 def __init__(me, series, title, i, *args, **kw):
319 super().__init__(series, *args, **kw)
320 me.title, me.i = title, i
321 def _eplabel(me, i, neps, title):
322 epname, epn = me._epnames(i, neps)
324 if me.implicitp: label = "%s %s" % (epname, epn)
325 elif me.title is None: label = "%s %d.%s" % (epname, me.i, epn)
326 else: label = "%s—%s %s" % (me.title, epname, epn)
328 if me.implicitp: label = "%s. %s" % (epn, title)
329 elif me.title is None: label = "%d.%s. %s" % (me.i, epn, title)
330 else: label = "%s—%s. %s" % (me.title, epn, title)
333 class MovieSeason (BaseSeason):
334 def __init__(me, series, title, *args, **kw):
335 super().__init__(series, *args, **kw)
338 def add_episode(me, j, neps, title, src, tno, startch):
339 if me.title is None and title is None:
340 raise ExpectedError("movie or movie season must have a title")
341 return super().add_episode(j, neps, title, src, tno, startch)
342 def _eplabel(me, i, neps, title):
346 epname, epn = me._epnames(i, neps)
347 label = "%s—%s %s" % (me.title, epname, epn)
349 label = "%s—%s" % (me.title, title)
352 class Series (object):
353 def __init__(me, playlist, name, title = None, wantedp = True):
354 me.playlist = playlist
355 me.name, me.title = name, title
358 def _add_season(me, season):
359 me.cur_season = season
360 def add_season(me, title, i, implicitp = False):
361 me._add_season(Season(me, title, i, implicitp))
362 def add_movies(me, title = None):
363 me._add_season(MovieSeason(me, title))
364 def ensure_season(me):
365 if me.cur_season is None: me.add_season(None, 1, implicitp = True)
370 class Playlist (object):
374 me.epname, me.epnames = "Episode", "Episodes"
376 def add_episode(me, episode):
377 me.episodes.append(episode)
380 me.seasons.append(me.episodes)
384 for season in me.seasons:
388 if me.nseries > 1: label = ep.season.series.title + " " + label
390 f.write("#EXTINF:0,,%s\n%s\n" % (label, ep.url))
392 for ch in ep.chapters:
393 f.write("#EXTINF:0,,%s: %s\n%s\n" %
394 (label, ch.title, ch.url))
400 class EpisodeListParser (object):
402 def __init__(me, series_wanted = None, chapters_wanted_p = False):
404 me._cur_episode = me._cur_chapter = None
405 me._series = {}; me._vdirs = {}; me._audirs = {}; me._isos = {}
406 me._series_wanted = series_wanted
407 me._chaptersp = chapters_wanted_p
408 if series_wanted is None: me._mode = MODE_UNSET
409 else: me._mode = MODE_MULTI
411 def _bad_keyval(me, cmd, k, v):
412 raise ExpectedError("invalid `!%s' option `%s'" %
413 (cmd, v if k is None else k))
415 def _keyvals(me, opts):
417 for kv in opts.split(","):
418 try: sep = kv.index("=")
419 except ValueError: yield None, kv
420 else: yield kv[:sep], kv[sep + 1:]
422 def _set_mode(me, mode):
423 if me._mode == MODE_UNSET:
425 elif me._mode != mode:
426 raise ExpectedError("inconsistent single-/multi-series usage")
428 def _get_series(me, name):
430 me._set_mode(MODE_SINGLE)
431 try: series = me._series[None]
433 series = me._series[None] = Series(me._pl, None)
436 me._set_mode(MODE_MULTI)
437 series = lookup(me._series, name, "unknown series `%s'" % name)
440 def _opts_series(me, cmd, opts):
442 for k, v in me._keyvals(opts):
443 if k is None: name = v
444 else: me._bad_keyval(cmd, k, v)
445 return me._get_series(name)
447 def _auto_epsrc(me, series):
448 dir = lookup(me._vdirs, series.name, "no active video directory")
449 season = series.ensure_season()
450 check(season.i is not None, "must use explicit iso for movie seasons")
451 vseason = lookup(dir.seasons, season.i,
452 "season %d not found in video dir `%s'" %
454 src = lookup(vseason.episodes, season.ep_i,
455 "episode %d.%d not found in video dir `%s'" %
456 (season.i, season.ep_i, dir.dir))
459 def _process_cmd(me, ww):
461 cmd = ww.nextword(); check(cmd is not None, "missing command")
462 try: sep = cmd.index(":")
463 except ValueError: opts = None
464 else: cmd, opts = cmd[:sep], cmd[sep + 1:]
468 for k, v in me._keyvals(opts):
469 if k is None: name = v
470 else: me._bad_keyval(cmd, k, v)
471 check(name is not None, "missing series name")
472 check(name not in me._series, "series `%s' already defined" % name)
473 title = ww.rest(); check(title is not None, "missing title")
474 me._set_mode(MODE_MULTI)
475 me._series[name] = series = Series(me._pl, name, title,
476 me._series_wanted is None or
477 name in me._series_wanted)
478 if series.wantedp: me._pl.nseries += 1
480 elif cmd == "season":
481 series = me._opts_series(cmd, opts)
483 check(w is not None, "missing season number")
485 if not series.wantedp: return
486 series.add_movies(ww.rest())
488 title = ww.rest(); i = getint(w)
489 if not series.wantedp: return
490 series.add_season(ww.rest(), getint(w), implicitp = False)
491 me._cur_episode = me._cur_chapter = None
494 elif cmd == "epname":
495 for k, v in me._keyvals(opts): me._bad_keyval("epname", k, v)
496 name = ww.rest(); check(name is not None, "missing episode name")
497 try: sep = name.index(",")
498 except ValueError: names = name + "s"
499 else: name, names = name[:sep], name[sep + 1:]
500 me._pl.epname, me._pl.epnames = name, names
503 series = me._opts_series(cmd, opts)
504 w = ww.rest(); check(w is not None, "missing episode number")
506 if not series.wantedp: return
507 series.ensure_season().ep_i = epi
510 series = me._opts_series(cmd, opts)
511 fn = ww.rest(); check(fn is not None, "missing filename")
512 if not series.wantedp: return
513 if fn == "-": forget(me._isos, series.name)
515 check(OS.path.exists(OS.path.join(ROOT, fn)),
516 "iso file `%s' not found" % fn)
517 me._isos[series.name] = VideoDisc(fn)
520 series = me._opts_series(cmd, opts)
521 dir = ww.rest(); check(dir is not None, "missing directory")
522 if not series.wantedp: return
523 if dir == "-": forget(me._vdirs, series.name)
524 else: me._vdirs[series.name] = VideoDir(dir)
527 series = me._opts_series(cmd, opts)
528 dir = ww.rest(); check(dir is not None, "missing directory")
529 if not series.wantedp: return
530 if dir == "-": forget(me._audirs, series.name)
531 else: me._audirs[series.name] = AudioDir(dir)
533 elif cmd == "displaced":
534 series = me._opts_series(cmd, opts)
535 w = ww.rest(); check(w is not None, "missing count"); n = getint(w)
536 src = me._auto_epsrc(series)
539 raise ExpectedError("unknown command `%s'" % cmd)
541 def _process_episode(me, ww):
543 opts = ww.nextword(); check(opts is not None, "missing title/options")
544 ti = None; sname = None; neps = 1; epi = None; ch = None
545 for k, v in me._keyvals(opts):
547 if v.isdigit(): ti = int(v)
548 elif v == "-": ti = "-"
550 elif k == "s": sname = v
551 elif k == "n": neps = getint(v)
552 elif k == "ep": epi = getint(v)
553 elif k == "ch": ch = getint(v)
554 else: raise ExpectedError("unknown episode option `%s'" % k)
555 check(ti is not None, "missing title number")
556 series = me._get_series(sname)
557 me._cur_chapter = None
560 if not series.wantedp: return
561 season = series.ensure_season()
562 if epi is None: epi = season.ep_i
565 check(season.implicitp, "audio source, but explicit season")
566 dir = lookup(me._audirs, series.name,
567 "no title, and no audio directory")
568 src = lookup(dir.episodes, season.ep_i,
569 "episode %d not found in audio dir `%s'" % (epi, dir.dir))
572 try: src = me._isos[series.name]
573 except KeyError: src = me._auto_epsrc(series)
575 episode = season.add_episode(epi, neps, title, src, ti, ch)
576 me._pl.add_episode(episode)
577 me._cur_episode = episode
579 def _process_chapter(me, ww):
580 check(me._cur_episode is not None, "no current episode")
581 check(me._cur_episode.source.CHAPTERP,
582 "episode source doesn't allow chapters")
584 if me._cur_chapter is None: i = 1
585 else: i = me._cur_chapter.i + 1
586 me._cur_chapter = me._cur_episode.add_chapter(ww.rest(), i)
588 def parse_file(me, fn):
589 with location(FileLocation(fn, 0)) as floc:
590 with open(fn, "r") as f:
593 sline = line.lstrip()
594 if sline == "" or sline.startswith(";"): continue
596 if line.startswith("!"): me._process_cmd(Words(line[1:]))
597 elif not line[0].isspace(): me._process_episode(Words(line))
598 else: me._process_chapter(Words(line))
603 for name, vdir in me._vdirs.items():
604 if not me._series[name].wantedp: continue
605 for s in vdir.seasons.values():
606 for d in s.episodes.values():
608 for adir in me._audirs.values():
609 for d in adir.episodes.values():
611 for d in sorted(discs, key = lambda d: d.fn):
612 if d.neps is not None and d.neps != d.nuses:
613 raise ExpectedError("disc `%s' has %d episodes, used %d times" %
614 (d.fn, d.neps, d.nuses))
617 ROOT = "/mnt/dvd/archive/"
619 op = OP.OptionParser \
620 (usage = "%prog [-c] [-s SERIES] EPLS",
621 description = "Generate M3U playlists from an episode list.")
622 op.add_option("-c", "--chapters",
623 dest = "chaptersp", action = "store_true", default = False,
624 help = "Output individual chapter names")
625 op.add_option("-s", "--series",
626 dest = "series", type = "str", default = None,
627 help = "Output only the listed SERIES (comma-separated)")
628 opts, argv = op.parse_args()
629 if len(argv) != 1: op.print_usage(file = SYS.stderr); SYS.exit(2)
630 if opts.series is None:
633 series_wanted = set()
634 for name in opts.series.split(","): series_wanted.add(name)
636 ep = EpisodeListParser(series_wanted, opts.chaptersp)
637 ep.parse_file(argv[0])
640 except (ExpectedError, IOError, OSError) as e: