Repository navigation
Expand file tree
/
Copy pathimportcompletion.py
More file actions
255 lines (218 loc) · 8.02 KB
/
Copy pathimportcompletion.py
File metadata and controls
255 lines (218 loc) · 8.02 KB
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
# encoding: utf-8
# The MIT License
#
# Copyright (c) 2009-2011 Andreas Stuehrk
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from __future__ import absolute_import
from ._py3compat import py3, try_decode
from .line import (
current_word,
current_import,
current_from_import_from,
current_from_import_import,
)
import fnmatch
import os
import sys
import warnings
from six.moves import filter
if py3:
import importlib.machinery
SUFFIXES = importlib.machinery.all_suffixes()
else:
import imp
SUFFIXES = [suffix for suffix, mode, type in imp.get_suffixes()]
# The cached list of all known modules
modules = set()
# List of stored paths to compare against so that real paths are not repeated
# handles symlinks not mount points
paths = set()
# Patterns to skip
# TODO: This skiplist should be configurable.
skiplist = (".git", ".config", ".local", ".share", "node_modules")
fully_loaded = False
def module_matches(cw, prefix=""):
"""Modules names to replace cw with"""
full = "%s.%s" % (prefix, cw) if prefix else cw
matches = (
name
for name in modules
if (name.startswith(full) and name.find(".", len(full)) == -1)
)
if prefix:
return set(match[len(prefix) + 1 :] for match in matches)
else:
return set(matches)
def attr_matches(cw, prefix="", only_modules=False):
"""Attributes to replace name with"""
full = "%s.%s" % (prefix, cw) if prefix else cw
module_name, _, name_after_dot = full.rpartition(".")
if module_name not in sys.modules:
return set()
module = sys.modules[module_name]
if only_modules:
matches = (
name
for name in dir(module)
if (
name.startswith(name_after_dot)
and "%s.%s" % (module_name, name)
)
in sys.modules
)
else:
matches = (
name for name in dir(module) if name.startswith(name_after_dot)
)
module_part, _, _ = cw.rpartition(".")
if module_part:
matches = ("%s.%s" % (module_part, m) for m in matches)
generator = (try_decode(match, "ascii") for match in matches)
return set(filter(lambda x: x is not None, generator))
def module_attr_matches(name):
"""Only attributes which are modules to replace name with"""
return attr_matches(name, prefix="", only_modules=True)
def complete(cursor_offset, line):
"""Construct a full list of possibly completions for imports."""
tokens = line.split()
if "from" not in tokens and "import" not in tokens:
return None
result = current_word(cursor_offset, line)
if result is None:
return None
from_import_from = current_from_import_from(cursor_offset, line)
if from_import_from is not None:
import_import = current_from_import_import(cursor_offset, line)
if import_import is not None:
# `from a import <b|>` completion
matches = module_matches(import_import[2], from_import_from[2])
matches.update(attr_matches(import_import[2], from_import_from[2]))
else:
# `from <a|>` completion
matches = module_attr_matches(from_import_from[2])
matches.update(module_matches(from_import_from[2]))
return matches
cur_import = current_import(cursor_offset, line)
if cur_import is not None:
# `import <a|>` completion
matches = module_matches(cur_import[2])
matches.update(module_attr_matches(cur_import[2]))
return matches
else:
return None
def find_modules(path):
"""Find all modules (and packages) for a given directory."""
if not os.path.isdir(path):
# Perhaps a zip file
return
basepath = os.path.basename(path)
if any(fnmatch.fnmatch(basepath, entry) for entry in skiplist):
# Path is on skiplist
return
try:
filenames = os.listdir(path)
except EnvironmentError:
filenames = []
if py3:
finder = importlib.machinery.FileFinder(path)
for name in filenames:
if any(fnmatch.fnmatch(name, entry) for entry in skiplist):
# Path is on skiplist
continue
elif not any(name.endswith(suffix) for suffix in SUFFIXES):
# Possibly a package
if "." in name:
continue
elif os.path.isdir(os.path.join(path, name)):
# Unfortunately, CPython just crashes if there is a directory
# which ends with a python extension, so work around.
continue
for suffix in SUFFIXES:
if name.endswith(suffix):
name = name[: -len(suffix)]
break
if py3 and name == "badsyntax_pep3120":
# Workaround for issue #166
continue
try:
is_package = False
with warnings.catch_warnings():
warnings.simplefilter("ignore", ImportWarning)
if py3:
spec = finder.find_spec(name)
if spec is None:
continue
if spec.submodule_search_locations is not None:
pathname = spec.submodule_search_locations[0]
is_package = True
else:
pathname = spec.origin
else:
fo, pathname, _ = imp.find_module(name, [path])
if fo is not None:
fo.close()
else:
# Yay, package
is_package = True
except (ImportError, IOError, SyntaxError):
continue
except UnicodeEncodeError:
# Happens with Python 3 when there is a filename in some
# invalid encoding
continue
else:
if is_package:
path_real = os.path.realpath(pathname)
if path_real not in paths:
paths.add(path_real)
for subname in find_modules(pathname):
if subname != "__init__":
yield "%s.%s" % (name, subname)
yield name
def find_all_modules(path=None):
"""Return a list with all modules in `path`, which should be a list of
directory names. If path is not given, sys.path will be used."""
if path is None:
modules.update(try_decode(m, "ascii") for m in sys.builtin_module_names)
path = sys.path
for p in path:
if not p:
p = os.curdir
for module in find_modules(p):
module = try_decode(module, "ascii")
if module is None:
continue
modules.add(module)
yield
def find_coroutine():
global fully_loaded
if fully_loaded:
return None
try:
next(find_iterator)
except StopIteration:
fully_loaded = True
return True
def reload():
"""Refresh the list of known modules."""
modules.clear()
for _ in find_all_modules():
pass
find_iterator = find_all_modules()