1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
# coding: utf-8
from __future__ import print_function
"""
helper routines for testing round trip of commented YAML data
"""
import sys
import textwrap
from ruamel.std.pathlib import Path
enforce = object()
def dedent(data):
try:
position_of_first_newline = data.index('\n')
for idx in range(position_of_first_newline):
if not data[idx].isspace():
raise ValueError
except ValueError:
pass
else:
data = data[position_of_first_newline + 1 :]
return textwrap.dedent(data)
def round_trip_load(inp, preserve_quotes=None, version=None):
import ruamel.yaml # NOQA
dinp = dedent(inp)
return ruamel.yaml.load(
dinp,
Loader=ruamel.yaml.RoundTripLoader,
preserve_quotes=preserve_quotes,
version=version,
)
def round_trip_load_all(inp, preserve_quotes=None, version=None):
import ruamel.yaml # NOQA
dinp = dedent(inp)
return ruamel.yaml.load_all(
dinp,
Loader=ruamel.yaml.RoundTripLoader,
preserve_quotes=preserve_quotes,
version=version,
)
def round_trip_dump(
data,
stream=None,
indent=None,
block_seq_indent=None,
top_level_colon_align=None,
prefix_colon=None,
explicit_start=None,
explicit_end=None,
version=None,
):
import ruamel.yaml # NOQA
return ruamel.yaml.round_trip_dump(
data,
stream=stream,
indent=indent,
block_seq_indent=block_seq_indent,
top_level_colon_align=top_level_colon_align,
prefix_colon=prefix_colon,
explicit_start=explicit_start,
explicit_end=explicit_end,
version=version,
)
def diff(inp, outp, file_name='stdin'):
import difflib
inl = inp.splitlines(True) # True for keepends
outl = outp.splitlines(True)
diff = difflib.unified_diff(inl, outl, file_name, 'round trip YAML')
# 2.6 difflib has trailing space on filename lines %-)
strip_trailing_space = sys.version_info < (2, 7)
for line in diff:
if strip_trailing_space and line[:4] in ['--- ', '+++ ']:
line = line.rstrip() + '\n'
sys.stdout.write(line)
def round_trip(
inp,
outp=None,
extra=None,
intermediate=None,
indent=None,
block_seq_indent=None,
top_level_colon_align=None,
prefix_colon=None,
preserve_quotes=None,
explicit_start=None,
explicit_end=None,
version=None,
dump_data=None,
):
"""
inp: input string to parse
outp: expected output (equals input if not specified)
"""
if outp is None:
outp = inp
doutp = dedent(outp)
if extra is not None:
doutp += extra
data = round_trip_load(inp, preserve_quotes=preserve_quotes)
if dump_data:
print('data', data)
if intermediate is not None:
if isinstance(intermediate, dict):
for k, v in intermediate.items():
if data[k] != v:
print('{0!r} <> {1!r}'.format(data[k], v))
raise ValueError
res = round_trip_dump(
data,
indent=indent,
block_seq_indent=block_seq_indent,
top_level_colon_align=top_level_colon_align,
prefix_colon=prefix_colon,
explicit_start=explicit_start,
explicit_end=explicit_end,
version=version,
)
if res != doutp:
diff(doutp, res, 'input string')
print('\nroundtrip data:\n', res, sep="")
assert res == doutp
res = round_trip_dump(
data,
indent=indent,
block_seq_indent=block_seq_indent,
top_level_colon_align=top_level_colon_align,
prefix_colon=prefix_colon,
explicit_start=explicit_start,
explicit_end=explicit_end,
version=version,
)
print('roundtrip second round data:\n', res, sep="")
assert res == doutp
return data
def YAML(**kw):
import ruamel.yaml # NOQA
class MyYAML(ruamel.yaml.YAML):
"""auto dedent string parameters on load"""
def load(self, stream):
if isinstance(stream, str):
if stream and stream[0] == '\n':
stream = stream[1:]
stream = textwrap.dedent(stream)
return ruamel.yaml.YAML.load(self, stream)
def load_all(self, stream):
if isinstance(stream, str):
if stream and stream[0] == '\n':
stream = stream[1:]
stream = textwrap.dedent(stream)
for d in ruamel.yaml.YAML.load_all(self, stream):
yield d
def dump(self, data, **kw):
from ruamel.yaml.compat import StringIO, BytesIO # NOQA
assert ('stream' in kw) ^ ('compare' in kw)
if 'stream' in kw:
return ruamel.yaml.YAML.dump(data, **kw)
lkw = kw.copy()
expected = textwrap.dedent(lkw.pop('compare'))
unordered_lines = lkw.pop('unordered_lines', False)
if expected and expected[0] == '\n':
expected = expected[1:]
lkw['stream'] = st = StringIO()
ruamel.yaml.YAML.dump(self, data, **lkw)
res = st.getvalue()
print(res)
if unordered_lines:
res = sorted(res.splitlines())
expected = sorted(expected.splitlines())
assert res == expected
def round_trip(self, stream, **kw):
from ruamel.yaml.compat import StringIO, BytesIO # NOQA
assert isinstance(stream, (ruamel.yaml.compat.text_type, str))
lkw = kw.copy()
if stream and stream[0] == '\n':
stream = stream[1:]
stream = textwrap.dedent(stream)
data = ruamel.yaml.YAML.load(self, stream)
outp = lkw.pop('outp', stream)
lkw['stream'] = st = StringIO()
ruamel.yaml.YAML.dump(self, data, **lkw)
res = st.getvalue()
if res != outp:
diff(outp, res, 'input string')
assert res == outp
def round_trip_all(self, stream, **kw):
from ruamel.yaml.compat import StringIO, BytesIO # NOQA
assert isinstance(stream, (ruamel.yaml.compat.text_type, str))
lkw = kw.copy()
if stream and stream[0] == '\n':
stream = stream[1:]
stream = textwrap.dedent(stream)
data = list(ruamel.yaml.YAML.load_all(self, stream))
outp = lkw.pop('outp', stream)
lkw['stream'] = st = StringIO()
ruamel.yaml.YAML.dump_all(self, data, **lkw)
res = st.getvalue()
if res != outp:
diff(outp, res, 'input string')
assert res == outp
return MyYAML(**kw)
def save_and_run(program, base_dir=None, output=None, file_name=None, optimized=False):
"""
safe and run a python program, thereby circumventing any restrictions on module level
imports
"""
from subprocess import check_output, STDOUT, CalledProcessError
if not hasattr(base_dir, 'hash'):
base_dir = Path(str(base_dir))
if file_name is None:
file_name = 'safe_and_run_tmp.py'
file_name = base_dir / file_name
file_name.write_text(dedent(program))
try:
cmd = [sys.executable]
if optimized:
cmd.append('-O')
cmd.append(str(file_name))
print('running:', *cmd)
res = check_output(cmd, stderr=STDOUT, universal_newlines=True)
if output is not None:
if '__pypy__' in sys.builtin_module_names:
res = res.splitlines(True)
res = [line for line in res if 'no version info' not in line]
res = ''.join(res)
print('result: ', res, end='')
print('expected:', output, end='')
assert res == output
except CalledProcessError as exception:
print("##### Running '{} {}' FAILED #####".format(sys.executable, file_name))
print(exception.output)
return exception.returncode
return 0
|
