Coverage for gws-app/gws/spec/generator/manifest.py: 28%

1"""Tools to deal with r8 MANIFEST files.""" 

2 

3import json 

4import os 

5 

6 

7class Error(Exception): 

8 pass 

9 

10 

11def from_path(path): 

12 with open(path, 'rt', encoding='utf8') as fp: 

13 return from_text(fp.read(), path) 

14 

15 

16def from_text(text, path): 

17 lines = [] 

18 for s in text.split('\n'): 

19 # we allow // or # comments in json 

20 if s.strip().startswith(('//', '#')): 

21 s = '' 

22 lines.append(s) 

23 

24 try: 

25 js = json.loads('\n'.join(lines)) 

26 except Exception as exc: 

27 raise Error('invalid json') from exc 

28 

29 return _parse(js, path) 

30 

31 

32## 

33 

34def _version(val, js, path): 

35 p = [int(s) for s in val.split('.')] 

36 return '.'.join(str(s) for s in p) 

37 

38 

39def _plugins(val, js, path): 

40 plugins = [] 

41 basedir = os.path.dirname(path) 

42 

43 for p in val: 

44 path = p['path'] if os.path.isabs(p['path']) else os.path.abspath(os.path.join(basedir, p['path'])) 

45 name = p.get('name') or os.path.basename(path) 

46 plugins.append({'name': name, 'path': path}) 

47 

48 return plugins 

49 

50 

51def _strlist(val, js, path): 

52 return [str(s) for s in val] 

53 

54 

55def _str(val, js, path): 

56 return str(val) 

57 

58 

59def _bool(val, js, path): 

60 return bool(val) 

61 

62 

63_KEYS = [ 

64 ('uid', _str, None), 

65 ('release', _version, None), 

66 ('locales', _strlist, []), 

67 ('plugins', _plugins, []), 

68 ('excludePlugins', _strlist, []), 

69 ('withFallbackConfig', _bool, False), 

70 ('withStrictConfig', _bool, False), 

71] 

72 

73 

74def _parse(js, path): 

75 res = {} 

76 

77 for key, fn, default in _KEYS: 

78 if key not in js: 

79 res[key] = default 

80 else: 

81 try: 

82 res[key] = fn(js[key], js, path) 

83 except Exception as exc: 

84 raise Error(f'invalid value for key {key!r} in {path!r}') from exc 

85 

86 return res