1 | """Classes and functions to interact with songs.""" |
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2 | |||
3 | 1 | import os |
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4 | 1 | import shutil |
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5 | 1 | import uuid |
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6 | 1 | import logging |
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7 | |||
8 | 1 | import yaml |
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0 ignored issues
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9 | |||
10 | |||
11 | 1 | class Song(object): |
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12 | """Represents a song file or link.""" |
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13 | |||
14 | 1 | def __init__(self, path, downloads=None, friendname=None): |
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15 | 1 | self.path = path |
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16 | 1 | self.downloads = downloads |
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17 | 1 | self.friendname = friendname |
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18 | |||
19 | 1 | def __str__(self): |
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20 | 1 | return str(self.path) |
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21 | |||
22 | 1 | def link(self, dirpath): |
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23 | """Create a link to the song in the specified directory.""" |
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24 | 1 | if not os.path.isdir(dirpath): |
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25 | 1 | logging.warning("creating missing folder: {}".format(dirpath)) |
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26 | 1 | os.makedirs(dirpath) |
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27 | 1 | relpath = os.path.relpath(self.path, dirpath) |
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28 | 1 | filename = "{}.yml".format(uuid.uuid4().hex) |
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29 | 1 | path = os.path.join(dirpath, filename) |
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30 | 1 | logging.info("creating link {}...".format(path)) |
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31 | 1 | with open(path, 'w') as link: |
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32 | 1 | data = {'link': relpath.replace('\\', '/')} # always *nix format |
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33 | 1 | link.write(yaml.dump(data, default_flow_style=False)) |
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34 | |||
35 | 1 | @property |
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36 | def source(self): |
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37 | """If the song is a link, return its source. Otherwise its path.""" |
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38 | 1 | src = self.path |
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39 | 1 | if self.path.endswith('.yml'): |
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40 | 1 | with open(self.path, 'r') as yml: |
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41 | 1 | text = yml.read() |
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42 | 1 | try: |
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43 | 1 | data = yaml.load(text) |
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44 | 1 | except yaml.parser.ParserError: # pylint: disable=E1101 |
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45 | 1 | logging.warning("invalid YAML: {}".format(self.path)) |
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46 | 1 | data = None |
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47 | 1 | if data: |
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48 | 1 | relpath = data.get('link', None) |
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49 | 1 | if relpath: |
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50 | 1 | dirpath = os.path.dirname(self.path) |
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51 | 1 | path = os.path.join(dirpath, relpath) |
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52 | 1 | src = os.path.normpath(path) |
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53 | else: |
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54 | 1 | logging.debug("non-link YAML: {}".format(self.path)) |
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55 | 1 | return src |
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56 | |||
57 | 1 | @property |
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58 | def in_string(self): |
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59 | """Get the string representation for an incoming song.""" |
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60 | 1 | filename = os.path.basename(self.source) |
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61 | 1 | return "{} (from {})".format(filename, self.friendname) |
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62 | |||
63 | 1 | @property |
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64 | def out_string(self): |
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65 | """Get the string representation for an incoming song.""" |
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66 | 1 | filename = os.path.basename(self.source) |
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67 | 1 | return "{} (to {})".format(filename, self.friendname) |
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68 | |||
69 | 1 | def download(self, catch=True): |
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70 | """Move the song to the user's download directory. |
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71 | |||
72 | @return: path to downloaded file or None on broken links |
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73 | """ |
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74 | 1 | assert self.downloads # only called in cases where downloads is set |
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75 | # Determine if the song file is actually a link |
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76 | 1 | src = self.source |
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77 | 1 | dst = None |
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78 | # Move the file or copy from the link |
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79 | 1 | try: |
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80 | 1 | if not os.path.isdir(self.downloads): |
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81 | 1 | msg = "invalid download location: {}".format(self.downloads) |
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82 | 1 | raise IOError(msg) |
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83 | 1 | if src == self.path: |
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84 | 1 | logging.info("moving {}...".format(src)) |
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85 | # Copy then delete in case the operation is canceled |
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86 | 1 | shutil.copy(src, self.downloads) |
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87 | 1 | dst = os.path.join(self.downloads, os.path.basename(src)) |
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88 | 1 | os.remove(src) |
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89 | else: |
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90 | 1 | if os.path.exists(src): |
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91 | 1 | logging.info("copying {}...".format(src)) |
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92 | 1 | shutil.copy(src, self.downloads) |
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93 | 1 | dst = os.path.join(self.downloads, os.path.basename(src)) |
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94 | 1 | os.remove(self.path) |
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95 | else: |
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96 | 1 | logging.debug("unknown link target: {}".format(src)) |
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97 | 1 | logging.warning("broken link: {}".format(self.path)) |
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98 | 1 | os.remove(self.path) |
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99 | 1 | except IOError as error: |
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100 | 1 | logging.error(error) |
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101 | 1 | if not catch: |
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102 | 1 | raise |
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103 | 1 | return dst |
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104 | |||
105 | 1 | def ignore(self): |
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106 | """Delete the song.""" |
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107 | 1 | logging.info("deleting {}...".format(self.path)) |
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108 | os.remove(self.path) |
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109 |
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1. Missing Dependencies
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2. Missing __init__.py files
This error could also result from missing
__init__.py
files in your module folders. Make sure that you place one file in each sub-folder.