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1 | # posix.py - Posix utility function implementations for Mercurial |
|
1 | # posix.py - Posix utility function implementations for Mercurial | |
2 | # |
|
2 | # | |
3 | # Copyright 2005-2009 Olivia Mackall <olivia@selenic.com> and others |
|
3 | # Copyright 2005-2009 Olivia Mackall <olivia@selenic.com> and others | |
4 | # |
|
4 | # | |
5 | # This software may be used and distributed according to the terms of the |
|
5 | # This software may be used and distributed according to the terms of the | |
6 | # GNU General Public License version 2 or any later version. |
|
6 | # GNU General Public License version 2 or any later version. | |
7 |
|
7 | |||
8 |
|
8 | |||
9 | import errno |
|
9 | import errno | |
10 | import fcntl |
|
10 | import fcntl | |
11 | import getpass |
|
11 | import getpass | |
12 | import grp |
|
12 | import grp | |
13 | import os |
|
13 | import os | |
14 | import pwd |
|
14 | import pwd | |
15 | import re |
|
15 | import re | |
16 | import select |
|
16 | import select | |
17 | import stat |
|
17 | import stat | |
18 | import sys |
|
18 | import sys | |
19 | import tempfile |
|
19 | import tempfile | |
20 | import unicodedata |
|
20 | import unicodedata | |
21 |
|
21 | |||
22 | from typing import ( |
|
22 | from typing import ( | |
23 | Any, |
|
23 | Any, | |
24 | Iterable, |
|
24 | Iterable, | |
25 | Iterator, |
|
25 | Iterator, | |
26 | List, |
|
26 | List, | |
|
27 | Match, | |||
27 | NoReturn, |
|
28 | NoReturn, | |
28 | Optional, |
|
29 | Optional, | |
29 | Sequence, |
|
30 | Sequence, | |
|
31 | Tuple, | |||
30 | Union, |
|
32 | Union, | |
31 | ) |
|
33 | ) | |
32 |
|
34 | |||
33 | from .i18n import _ |
|
35 | from .i18n import _ | |
34 | from .pycompat import ( |
|
36 | from .pycompat import ( | |
35 | getattr, |
|
37 | getattr, | |
36 | open, |
|
38 | open, | |
37 | ) |
|
39 | ) | |
38 | from . import ( |
|
40 | from . import ( | |
39 | encoding, |
|
41 | encoding, | |
40 | error, |
|
42 | error, | |
41 | policy, |
|
43 | policy, | |
42 | pycompat, |
|
44 | pycompat, | |
43 | ) |
|
45 | ) | |
44 |
|
46 | |||
45 | osutil = policy.importmod('osutil') |
|
47 | osutil = policy.importmod('osutil') | |
46 |
|
48 | |||
47 | normpath = os.path.normpath |
|
49 | normpath = os.path.normpath | |
48 | samestat = os.path.samestat |
|
50 | samestat = os.path.samestat | |
49 | abspath = os.path.abspath # re-exports |
|
51 | abspath = os.path.abspath # re-exports | |
50 |
|
52 | |||
51 | try: |
|
53 | try: | |
52 | oslink = os.link |
|
54 | oslink = os.link | |
53 | except AttributeError: |
|
55 | except AttributeError: | |
54 | # Some platforms build Python without os.link on systems that are |
|
56 | # Some platforms build Python without os.link on systems that are | |
55 | # vaguely unix-like but don't have hardlink support. For those |
|
57 | # vaguely unix-like but don't have hardlink support. For those | |
56 | # poor souls, just say we tried and that it failed so we fall back |
|
58 | # poor souls, just say we tried and that it failed so we fall back | |
57 | # to copies. |
|
59 | # to copies. | |
58 | def oslink(src: bytes, dst: bytes) -> NoReturn: |
|
60 | def oslink(src: bytes, dst: bytes) -> NoReturn: | |
59 | raise OSError( |
|
61 | raise OSError( | |
60 | errno.EINVAL, b'hardlinks not supported: %s to %s' % (src, dst) |
|
62 | errno.EINVAL, b'hardlinks not supported: %s to %s' % (src, dst) | |
61 | ) |
|
63 | ) | |
62 |
|
64 | |||
63 |
|
65 | |||
64 | readlink = os.readlink |
|
66 | readlink = os.readlink | |
65 | unlink = os.unlink |
|
67 | unlink = os.unlink | |
66 | rename = os.rename |
|
68 | rename = os.rename | |
67 | removedirs = os.removedirs |
|
69 | removedirs = os.removedirs | |
68 | expandglobs = False |
|
70 | expandglobs: bool = False | |
69 |
|
71 | |||
70 | umask = os.umask(0) |
|
72 | umask: int = os.umask(0) | |
71 | os.umask(umask) |
|
73 | os.umask(umask) | |
72 |
|
74 | |||
73 | posixfile = open |
|
75 | posixfile = open | |
74 |
|
76 | |||
75 |
|
77 | |||
76 | def split(p): |
|
78 | def split(p: bytes) -> Tuple[bytes, bytes]: | |
77 | """Same as posixpath.split, but faster |
|
79 | """Same as posixpath.split, but faster | |
78 |
|
80 | |||
79 | >>> import posixpath |
|
81 | >>> import posixpath | |
80 | >>> for f in [b'/absolute/path/to/file', |
|
82 | >>> for f in [b'/absolute/path/to/file', | |
81 | ... b'relative/path/to/file', |
|
83 | ... b'relative/path/to/file', | |
82 | ... b'file_alone', |
|
84 | ... b'file_alone', | |
83 | ... b'path/to/directory/', |
|
85 | ... b'path/to/directory/', | |
84 | ... b'/multiple/path//separators', |
|
86 | ... b'/multiple/path//separators', | |
85 | ... b'/file_at_root', |
|
87 | ... b'/file_at_root', | |
86 | ... b'///multiple_leading_separators_at_root', |
|
88 | ... b'///multiple_leading_separators_at_root', | |
87 | ... b'']: |
|
89 | ... b'']: | |
88 | ... assert split(f) == posixpath.split(f), f |
|
90 | ... assert split(f) == posixpath.split(f), f | |
89 | """ |
|
91 | """ | |
90 | ht = p.rsplit(b'/', 1) |
|
92 | ht = p.rsplit(b'/', 1) | |
91 | if len(ht) == 1: |
|
93 | if len(ht) == 1: | |
92 | return b'', p |
|
94 | return b'', p | |
93 | nh = ht[0].rstrip(b'/') |
|
95 | nh = ht[0].rstrip(b'/') | |
94 | if nh: |
|
96 | if nh: | |
95 | return nh, ht[1] |
|
97 | return nh, ht[1] | |
96 | return ht[0] + b'/', ht[1] |
|
98 | return ht[0] + b'/', ht[1] | |
97 |
|
99 | |||
98 |
|
100 | |||
99 | def openhardlinks() -> bool: |
|
101 | def openhardlinks() -> bool: | |
100 | '''return true if it is safe to hold open file handles to hardlinks''' |
|
102 | '''return true if it is safe to hold open file handles to hardlinks''' | |
101 | return True |
|
103 | return True | |
102 |
|
104 | |||
103 |
|
105 | |||
104 | def nlinks(name: bytes) -> int: |
|
106 | def nlinks(name: bytes) -> int: | |
105 | '''return number of hardlinks for the given file''' |
|
107 | '''return number of hardlinks for the given file''' | |
106 | return os.lstat(name).st_nlink |
|
108 | return os.lstat(name).st_nlink | |
107 |
|
109 | |||
108 |
|
110 | |||
109 | def parsepatchoutput(output_line: bytes) -> bytes: |
|
111 | def parsepatchoutput(output_line: bytes) -> bytes: | |
110 | """parses the output produced by patch and returns the filename""" |
|
112 | """parses the output produced by patch and returns the filename""" | |
111 | pf = output_line[14:] |
|
113 | pf = output_line[14:] | |
112 | if pycompat.sysplatform == b'OpenVMS': |
|
114 | if pycompat.sysplatform == b'OpenVMS': | |
113 | if pf[0] == b'`': |
|
115 | if pf[0] == b'`': | |
114 | pf = pf[1:-1] # Remove the quotes |
|
116 | pf = pf[1:-1] # Remove the quotes | |
115 | else: |
|
117 | else: | |
116 | if pf.startswith(b"'") and pf.endswith(b"'") and b" " in pf: |
|
118 | if pf.startswith(b"'") and pf.endswith(b"'") and b" " in pf: | |
117 | pf = pf[1:-1] # Remove the quotes |
|
119 | pf = pf[1:-1] # Remove the quotes | |
118 | return pf |
|
120 | return pf | |
119 |
|
121 | |||
120 |
|
122 | |||
121 | def sshargs( |
|
123 | def sshargs( | |
122 | sshcmd: bytes, host: bytes, user: Optional[bytes], port: Optional[bytes] |
|
124 | sshcmd: bytes, host: bytes, user: Optional[bytes], port: Optional[bytes] | |
123 | ) -> bytes: |
|
125 | ) -> bytes: | |
124 | '''Build argument list for ssh''' |
|
126 | '''Build argument list for ssh''' | |
125 | args = user and (b"%s@%s" % (user, host)) or host |
|
127 | args = user and (b"%s@%s" % (user, host)) or host | |
126 | if b'-' in args[:1]: |
|
128 | if b'-' in args[:1]: | |
127 | raise error.Abort( |
|
129 | raise error.Abort( | |
128 | _(b'illegal ssh hostname or username starting with -: %s') % args |
|
130 | _(b'illegal ssh hostname or username starting with -: %s') % args | |
129 | ) |
|
131 | ) | |
130 | args = shellquote(args) |
|
132 | args = shellquote(args) | |
131 | if port: |
|
133 | if port: | |
132 | args = b'-p %s %s' % (shellquote(port), args) |
|
134 | args = b'-p %s %s' % (shellquote(port), args) | |
133 | return args |
|
135 | return args | |
134 |
|
136 | |||
135 |
|
137 | |||
136 | def isexec(f: bytes) -> bool: |
|
138 | def isexec(f: bytes) -> bool: | |
137 | """check whether a file is executable""" |
|
139 | """check whether a file is executable""" | |
138 | return os.lstat(f).st_mode & 0o100 != 0 |
|
140 | return os.lstat(f).st_mode & 0o100 != 0 | |
139 |
|
141 | |||
140 |
|
142 | |||
141 | def setflags(f: bytes, l: bool, x: bool) -> None: |
|
143 | def setflags(f: bytes, l: bool, x: bool) -> None: | |
142 | st = os.lstat(f) |
|
144 | st = os.lstat(f) | |
143 | s = st.st_mode |
|
145 | s = st.st_mode | |
144 | if l: |
|
146 | if l: | |
145 | if not stat.S_ISLNK(s): |
|
147 | if not stat.S_ISLNK(s): | |
146 | # switch file to link |
|
148 | # switch file to link | |
147 | with open(f, b'rb') as fp: |
|
149 | with open(f, b'rb') as fp: | |
148 | data = fp.read() |
|
150 | data = fp.read() | |
149 | unlink(f) |
|
151 | unlink(f) | |
150 | try: |
|
152 | try: | |
151 | os.symlink(data, f) |
|
153 | os.symlink(data, f) | |
152 | except OSError: |
|
154 | except OSError: | |
153 | # failed to make a link, rewrite file |
|
155 | # failed to make a link, rewrite file | |
154 | with open(f, b"wb") as fp: |
|
156 | with open(f, b"wb") as fp: | |
155 | fp.write(data) |
|
157 | fp.write(data) | |
156 |
|
158 | |||
157 | # no chmod needed at this point |
|
159 | # no chmod needed at this point | |
158 | return |
|
160 | return | |
159 | if stat.S_ISLNK(s): |
|
161 | if stat.S_ISLNK(s): | |
160 | # switch link to file |
|
162 | # switch link to file | |
161 | data = os.readlink(f) |
|
163 | data = os.readlink(f) | |
162 | unlink(f) |
|
164 | unlink(f) | |
163 | with open(f, b"wb") as fp: |
|
165 | with open(f, b"wb") as fp: | |
164 | fp.write(data) |
|
166 | fp.write(data) | |
165 | s = 0o666 & ~umask # avoid restatting for chmod |
|
167 | s = 0o666 & ~umask # avoid restatting for chmod | |
166 |
|
168 | |||
167 | sx = s & 0o100 |
|
169 | sx = s & 0o100 | |
168 | if st.st_nlink > 1 and bool(x) != bool(sx): |
|
170 | if st.st_nlink > 1 and bool(x) != bool(sx): | |
169 | # the file is a hardlink, break it |
|
171 | # the file is a hardlink, break it | |
170 | with open(f, b"rb") as fp: |
|
172 | with open(f, b"rb") as fp: | |
171 | data = fp.read() |
|
173 | data = fp.read() | |
172 | unlink(f) |
|
174 | unlink(f) | |
173 | with open(f, b"wb") as fp: |
|
175 | with open(f, b"wb") as fp: | |
174 | fp.write(data) |
|
176 | fp.write(data) | |
175 |
|
177 | |||
176 | if x and not sx: |
|
178 | if x and not sx: | |
177 | # Turn on +x for every +r bit when making a file executable |
|
179 | # Turn on +x for every +r bit when making a file executable | |
178 | # and obey umask. |
|
180 | # and obey umask. | |
179 | os.chmod(f, s | (s & 0o444) >> 2 & ~umask) |
|
181 | os.chmod(f, s | (s & 0o444) >> 2 & ~umask) | |
180 | elif not x and sx: |
|
182 | elif not x and sx: | |
181 | # Turn off all +x bits |
|
183 | # Turn off all +x bits | |
182 | os.chmod(f, s & 0o666) |
|
184 | os.chmod(f, s & 0o666) | |
183 |
|
185 | |||
184 |
|
186 | |||
185 | def copymode( |
|
187 | def copymode( | |
186 | src: bytes, |
|
188 | src: bytes, | |
187 | dst: bytes, |
|
189 | dst: bytes, | |
188 | mode: Optional[bytes] = None, |
|
190 | mode: Optional[bytes] = None, | |
189 | enforcewritable: bool = False, |
|
191 | enforcewritable: bool = False, | |
190 | ) -> None: |
|
192 | ) -> None: | |
191 | """Copy the file mode from the file at path src to dst. |
|
193 | """Copy the file mode from the file at path src to dst. | |
192 | If src doesn't exist, we're using mode instead. If mode is None, we're |
|
194 | If src doesn't exist, we're using mode instead. If mode is None, we're | |
193 | using umask.""" |
|
195 | using umask.""" | |
194 | try: |
|
196 | try: | |
195 | st_mode = os.lstat(src).st_mode & 0o777 |
|
197 | st_mode = os.lstat(src).st_mode & 0o777 | |
196 | except FileNotFoundError: |
|
198 | except FileNotFoundError: | |
197 | st_mode = mode |
|
199 | st_mode = mode | |
198 | if st_mode is None: |
|
200 | if st_mode is None: | |
199 | st_mode = ~umask |
|
201 | st_mode = ~umask | |
200 | st_mode &= 0o666 |
|
202 | st_mode &= 0o666 | |
201 |
|
203 | |||
202 | new_mode = st_mode |
|
204 | new_mode = st_mode | |
203 |
|
205 | |||
204 | if enforcewritable: |
|
206 | if enforcewritable: | |
205 | new_mode |= stat.S_IWUSR |
|
207 | new_mode |= stat.S_IWUSR | |
206 |
|
208 | |||
207 | os.chmod(dst, new_mode) |
|
209 | os.chmod(dst, new_mode) | |
208 |
|
210 | |||
209 |
|
211 | |||
210 | def checkexec(path: bytes) -> bool: |
|
212 | def checkexec(path: bytes) -> bool: | |
211 | """ |
|
213 | """ | |
212 | Check whether the given path is on a filesystem with UNIX-like exec flags |
|
214 | Check whether the given path is on a filesystem with UNIX-like exec flags | |
213 |
|
215 | |||
214 | Requires a directory (like /foo/.hg) |
|
216 | Requires a directory (like /foo/.hg) | |
215 | """ |
|
217 | """ | |
216 |
|
218 | |||
217 | # VFAT on some Linux versions can flip mode but it doesn't persist |
|
219 | # VFAT on some Linux versions can flip mode but it doesn't persist | |
218 | # a FS remount. Frequently we can detect it if files are created |
|
220 | # a FS remount. Frequently we can detect it if files are created | |
219 | # with exec bit on. |
|
221 | # with exec bit on. | |
220 |
|
222 | |||
221 | try: |
|
223 | try: | |
222 | EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
|
224 | EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH | |
223 | basedir = os.path.join(path, b'.hg') |
|
225 | basedir = os.path.join(path, b'.hg') | |
224 | cachedir = os.path.join(basedir, b'wcache') |
|
226 | cachedir = os.path.join(basedir, b'wcache') | |
225 | storedir = os.path.join(basedir, b'store') |
|
227 | storedir = os.path.join(basedir, b'store') | |
226 | if not os.path.exists(cachedir): |
|
228 | if not os.path.exists(cachedir): | |
227 | try: |
|
229 | try: | |
228 | # we want to create the 'cache' directory, not the '.hg' one. |
|
230 | # we want to create the 'cache' directory, not the '.hg' one. | |
229 | # Automatically creating '.hg' directory could silently spawn |
|
231 | # Automatically creating '.hg' directory could silently spawn | |
230 | # invalid Mercurial repositories. That seems like a bad idea. |
|
232 | # invalid Mercurial repositories. That seems like a bad idea. | |
231 | os.mkdir(cachedir) |
|
233 | os.mkdir(cachedir) | |
232 | if os.path.exists(storedir): |
|
234 | if os.path.exists(storedir): | |
233 | copymode(storedir, cachedir) |
|
235 | copymode(storedir, cachedir) | |
234 | else: |
|
236 | else: | |
235 | copymode(basedir, cachedir) |
|
237 | copymode(basedir, cachedir) | |
236 | except (IOError, OSError): |
|
238 | except (IOError, OSError): | |
237 | # we other fallback logic triggers |
|
239 | # we other fallback logic triggers | |
238 | pass |
|
240 | pass | |
239 | if os.path.isdir(cachedir): |
|
241 | if os.path.isdir(cachedir): | |
240 | checkisexec = os.path.join(cachedir, b'checkisexec') |
|
242 | checkisexec = os.path.join(cachedir, b'checkisexec') | |
241 | checknoexec = os.path.join(cachedir, b'checknoexec') |
|
243 | checknoexec = os.path.join(cachedir, b'checknoexec') | |
242 |
|
244 | |||
243 | try: |
|
245 | try: | |
244 | m = os.stat(checkisexec).st_mode |
|
246 | m = os.stat(checkisexec).st_mode | |
245 | except FileNotFoundError: |
|
247 | except FileNotFoundError: | |
246 | # checkisexec does not exist - fall through ... |
|
248 | # checkisexec does not exist - fall through ... | |
247 | pass |
|
249 | pass | |
248 | else: |
|
250 | else: | |
249 | # checkisexec exists, check if it actually is exec |
|
251 | # checkisexec exists, check if it actually is exec | |
250 | if m & EXECFLAGS != 0: |
|
252 | if m & EXECFLAGS != 0: | |
251 | # ensure checkisexec exists, check it isn't exec |
|
253 | # ensure checkisexec exists, check it isn't exec | |
252 | try: |
|
254 | try: | |
253 | m = os.stat(checknoexec).st_mode |
|
255 | m = os.stat(checknoexec).st_mode | |
254 | except FileNotFoundError: |
|
256 | except FileNotFoundError: | |
255 | open(checknoexec, b'w').close() # might fail |
|
257 | open(checknoexec, b'w').close() # might fail | |
256 | m = os.stat(checknoexec).st_mode |
|
258 | m = os.stat(checknoexec).st_mode | |
257 | if m & EXECFLAGS == 0: |
|
259 | if m & EXECFLAGS == 0: | |
258 | # check-exec is exec and check-no-exec is not exec |
|
260 | # check-exec is exec and check-no-exec is not exec | |
259 | return True |
|
261 | return True | |
260 | # checknoexec exists but is exec - delete it |
|
262 | # checknoexec exists but is exec - delete it | |
261 | unlink(checknoexec) |
|
263 | unlink(checknoexec) | |
262 | # checkisexec exists but is not exec - delete it |
|
264 | # checkisexec exists but is not exec - delete it | |
263 | unlink(checkisexec) |
|
265 | unlink(checkisexec) | |
264 |
|
266 | |||
265 | # check using one file, leave it as checkisexec |
|
267 | # check using one file, leave it as checkisexec | |
266 | checkdir = cachedir |
|
268 | checkdir = cachedir | |
267 | else: |
|
269 | else: | |
268 | # check directly in path and don't leave checkisexec behind |
|
270 | # check directly in path and don't leave checkisexec behind | |
269 | checkdir = path |
|
271 | checkdir = path | |
270 | checkisexec = None |
|
272 | checkisexec = None | |
271 | fh, fn = pycompat.mkstemp(dir=checkdir, prefix=b'hg-checkexec-') |
|
273 | fh, fn = pycompat.mkstemp(dir=checkdir, prefix=b'hg-checkexec-') | |
272 | try: |
|
274 | try: | |
273 | os.close(fh) |
|
275 | os.close(fh) | |
274 | m = os.stat(fn).st_mode |
|
276 | m = os.stat(fn).st_mode | |
275 | if m & EXECFLAGS == 0: |
|
277 | if m & EXECFLAGS == 0: | |
276 | os.chmod(fn, m & 0o777 | EXECFLAGS) |
|
278 | os.chmod(fn, m & 0o777 | EXECFLAGS) | |
277 | if os.stat(fn).st_mode & EXECFLAGS != 0: |
|
279 | if os.stat(fn).st_mode & EXECFLAGS != 0: | |
278 | if checkisexec is not None: |
|
280 | if checkisexec is not None: | |
279 | os.rename(fn, checkisexec) |
|
281 | os.rename(fn, checkisexec) | |
280 | fn = None |
|
282 | fn = None | |
281 | return True |
|
283 | return True | |
282 | finally: |
|
284 | finally: | |
283 | if fn is not None: |
|
285 | if fn is not None: | |
284 | unlink(fn) |
|
286 | unlink(fn) | |
285 | except (IOError, OSError): |
|
287 | except (IOError, OSError): | |
286 | # we don't care, the user probably won't be able to commit anyway |
|
288 | # we don't care, the user probably won't be able to commit anyway | |
287 | return False |
|
289 | return False | |
288 |
|
290 | |||
289 |
|
291 | |||
290 | def checklink(path: bytes) -> bool: |
|
292 | def checklink(path: bytes) -> bool: | |
291 | """check whether the given path is on a symlink-capable filesystem""" |
|
293 | """check whether the given path is on a symlink-capable filesystem""" | |
292 | # mktemp is not racy because symlink creation will fail if the |
|
294 | # mktemp is not racy because symlink creation will fail if the | |
293 | # file already exists |
|
295 | # file already exists | |
294 | while True: |
|
296 | while True: | |
295 | cachedir = os.path.join(path, b'.hg', b'wcache') |
|
297 | cachedir = os.path.join(path, b'.hg', b'wcache') | |
296 | checklink = os.path.join(cachedir, b'checklink') |
|
298 | checklink = os.path.join(cachedir, b'checklink') | |
297 | # try fast path, read only |
|
299 | # try fast path, read only | |
298 | if os.path.islink(checklink): |
|
300 | if os.path.islink(checklink): | |
299 | return True |
|
301 | return True | |
300 | if os.path.isdir(cachedir): |
|
302 | if os.path.isdir(cachedir): | |
301 | checkdir = cachedir |
|
303 | checkdir = cachedir | |
302 | else: |
|
304 | else: | |
303 | checkdir = path |
|
305 | checkdir = path | |
304 | cachedir = None |
|
306 | cachedir = None | |
305 | name = tempfile.mktemp( |
|
307 | name = tempfile.mktemp( | |
306 | dir=pycompat.fsdecode(checkdir), prefix=r'checklink-' |
|
308 | dir=pycompat.fsdecode(checkdir), prefix=r'checklink-' | |
307 | ) |
|
309 | ) | |
308 | name = pycompat.fsencode(name) |
|
310 | name = pycompat.fsencode(name) | |
309 | try: |
|
311 | try: | |
310 | fd = None |
|
312 | fd = None | |
311 | if cachedir is None: |
|
313 | if cachedir is None: | |
312 | fd = pycompat.namedtempfile( |
|
314 | fd = pycompat.namedtempfile( | |
313 | dir=checkdir, prefix=b'hg-checklink-' |
|
315 | dir=checkdir, prefix=b'hg-checklink-' | |
314 | ) |
|
316 | ) | |
315 | target = os.path.basename(fd.name) |
|
317 | target = os.path.basename(fd.name) | |
316 | else: |
|
318 | else: | |
317 | # create a fixed file to link to; doesn't matter if it |
|
319 | # create a fixed file to link to; doesn't matter if it | |
318 | # already exists. |
|
320 | # already exists. | |
319 | target = b'checklink-target' |
|
321 | target = b'checklink-target' | |
320 | try: |
|
322 | try: | |
321 | fullpath = os.path.join(cachedir, target) |
|
323 | fullpath = os.path.join(cachedir, target) | |
322 | open(fullpath, b'w').close() |
|
324 | open(fullpath, b'w').close() | |
323 | except PermissionError: |
|
325 | except PermissionError: | |
324 | # If we can't write to cachedir, just pretend |
|
326 | # If we can't write to cachedir, just pretend | |
325 | # that the fs is readonly and by association |
|
327 | # that the fs is readonly and by association | |
326 | # that the fs won't support symlinks. This |
|
328 | # that the fs won't support symlinks. This | |
327 | # seems like the least dangerous way to avoid |
|
329 | # seems like the least dangerous way to avoid | |
328 | # data loss. |
|
330 | # data loss. | |
329 | return False |
|
331 | return False | |
330 | try: |
|
332 | try: | |
331 | os.symlink(target, name) |
|
333 | os.symlink(target, name) | |
332 | if cachedir is None: |
|
334 | if cachedir is None: | |
333 | unlink(name) |
|
335 | unlink(name) | |
334 | else: |
|
336 | else: | |
335 | try: |
|
337 | try: | |
336 | os.rename(name, checklink) |
|
338 | os.rename(name, checklink) | |
337 | except OSError: |
|
339 | except OSError: | |
338 | unlink(name) |
|
340 | unlink(name) | |
339 | return True |
|
341 | return True | |
340 | except FileExistsError: |
|
342 | except FileExistsError: | |
341 | # link creation might race, try again |
|
343 | # link creation might race, try again | |
342 | continue |
|
344 | continue | |
343 | finally: |
|
345 | finally: | |
344 | if fd is not None: |
|
346 | if fd is not None: | |
345 | fd.close() |
|
347 | fd.close() | |
346 | except AttributeError: |
|
348 | except AttributeError: | |
347 | return False |
|
349 | return False | |
348 | except OSError as inst: |
|
350 | except OSError as inst: | |
349 | # sshfs might report failure while successfully creating the link |
|
351 | # sshfs might report failure while successfully creating the link | |
350 | if inst.errno == errno.EIO and os.path.exists(name): |
|
352 | if inst.errno == errno.EIO and os.path.exists(name): | |
351 | unlink(name) |
|
353 | unlink(name) | |
352 | return False |
|
354 | return False | |
353 |
|
355 | |||
354 |
|
356 | |||
355 | def checkosfilename(path): |
|
357 | def checkosfilename(path: bytes) -> Optional[bytes]: | |
356 | """Check that the base-relative path is a valid filename on this platform. |
|
358 | """Check that the base-relative path is a valid filename on this platform. | |
357 | Returns None if the path is ok, or a UI string describing the problem.""" |
|
359 | Returns None if the path is ok, or a UI string describing the problem.""" | |
358 | return None # on posix platforms, every path is ok |
|
360 | return None # on posix platforms, every path is ok | |
359 |
|
361 | |||
360 |
|
362 | |||
361 | def getfsmountpoint(dirpath): |
|
363 | def getfsmountpoint(dirpath: bytes) -> Optional[bytes]: | |
362 | """Get the filesystem mount point from a directory (best-effort) |
|
364 | """Get the filesystem mount point from a directory (best-effort) | |
363 |
|
365 | |||
364 | Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
|
366 | Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. | |
365 | """ |
|
367 | """ | |
366 | return getattr(osutil, 'getfsmountpoint', lambda x: None)(dirpath) |
|
368 | return getattr(osutil, 'getfsmountpoint', lambda x: None)(dirpath) | |
367 |
|
369 | |||
368 |
|
370 | |||
369 | def getfstype(dirpath: bytes) -> Optional[bytes]: |
|
371 | def getfstype(dirpath: bytes) -> Optional[bytes]: | |
370 | """Get the filesystem type name from a directory (best-effort) |
|
372 | """Get the filesystem type name from a directory (best-effort) | |
371 |
|
373 | |||
372 | Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
|
374 | Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. | |
373 | """ |
|
375 | """ | |
374 | return getattr(osutil, 'getfstype', lambda x: None)(dirpath) |
|
376 | return getattr(osutil, 'getfstype', lambda x: None)(dirpath) | |
375 |
|
377 | |||
376 |
|
378 | |||
377 | def get_password() -> bytes: |
|
379 | def get_password() -> bytes: | |
378 | return encoding.strtolocal(getpass.getpass('')) |
|
380 | return encoding.strtolocal(getpass.getpass('')) | |
379 |
|
381 | |||
380 |
|
382 | |||
381 | def setbinary(fd) -> None: |
|
383 | def setbinary(fd) -> None: | |
382 | pass |
|
384 | pass | |
383 |
|
385 | |||
384 |
|
386 | |||
385 | def pconvert(path: bytes) -> bytes: |
|
387 | def pconvert(path: bytes) -> bytes: | |
386 | return path |
|
388 | return path | |
387 |
|
389 | |||
388 |
|
390 | |||
389 | def localpath(path: bytes) -> bytes: |
|
391 | def localpath(path: bytes) -> bytes: | |
390 | return path |
|
392 | return path | |
391 |
|
393 | |||
392 |
|
394 | |||
393 | def samefile(fpath1: bytes, fpath2: bytes) -> bool: |
|
395 | def samefile(fpath1: bytes, fpath2: bytes) -> bool: | |
394 | """Returns whether path1 and path2 refer to the same file. This is only |
|
396 | """Returns whether path1 and path2 refer to the same file. This is only | |
395 | guaranteed to work for files, not directories.""" |
|
397 | guaranteed to work for files, not directories.""" | |
396 | return os.path.samefile(fpath1, fpath2) |
|
398 | return os.path.samefile(fpath1, fpath2) | |
397 |
|
399 | |||
398 |
|
400 | |||
399 | def samedevice(fpath1: bytes, fpath2: bytes) -> bool: |
|
401 | def samedevice(fpath1: bytes, fpath2: bytes) -> bool: | |
400 | """Returns whether fpath1 and fpath2 are on the same device. This is only |
|
402 | """Returns whether fpath1 and fpath2 are on the same device. This is only | |
401 | guaranteed to work for files, not directories.""" |
|
403 | guaranteed to work for files, not directories.""" | |
402 | st1 = os.lstat(fpath1) |
|
404 | st1 = os.lstat(fpath1) | |
403 | st2 = os.lstat(fpath2) |
|
405 | st2 = os.lstat(fpath2) | |
404 | return st1.st_dev == st2.st_dev |
|
406 | return st1.st_dev == st2.st_dev | |
405 |
|
407 | |||
406 |
|
408 | |||
407 | # os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
|
409 | # os.path.normcase is a no-op, which doesn't help us on non-native filesystems | |
408 | def normcase(path: bytes) -> bytes: |
|
410 | def normcase(path: bytes) -> bytes: | |
409 | return path.lower() |
|
411 | return path.lower() | |
410 |
|
412 | |||
411 |
|
413 | |||
412 | # what normcase does to ASCII strings |
|
414 | # what normcase does to ASCII strings | |
413 | normcasespec = encoding.normcasespecs.lower |
|
415 | normcasespec: int = encoding.normcasespecs.lower | |
414 | # fallback normcase function for non-ASCII strings |
|
416 | # fallback normcase function for non-ASCII strings | |
415 | normcasefallback = normcase |
|
417 | normcasefallback = normcase | |
416 |
|
418 | |||
417 | if pycompat.isdarwin: |
|
419 | if pycompat.isdarwin: | |
418 |
|
420 | |||
419 | def normcase(path: bytes) -> bytes: |
|
421 | def normcase(path: bytes) -> bytes: | |
420 | """ |
|
422 | """ | |
421 | Normalize a filename for OS X-compatible comparison: |
|
423 | Normalize a filename for OS X-compatible comparison: | |
422 | - escape-encode invalid characters |
|
424 | - escape-encode invalid characters | |
423 | - decompose to NFD |
|
425 | - decompose to NFD | |
424 | - lowercase |
|
426 | - lowercase | |
425 | - omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] |
|
427 | - omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] | |
426 |
|
428 | |||
427 | >>> normcase(b'UPPER') |
|
429 | >>> normcase(b'UPPER') | |
428 | 'upper' |
|
430 | 'upper' | |
429 | >>> normcase(b'Caf\\xc3\\xa9') |
|
431 | >>> normcase(b'Caf\\xc3\\xa9') | |
430 | 'cafe\\xcc\\x81' |
|
432 | 'cafe\\xcc\\x81' | |
431 | >>> normcase(b'\\xc3\\x89') |
|
433 | >>> normcase(b'\\xc3\\x89') | |
432 | 'e\\xcc\\x81' |
|
434 | 'e\\xcc\\x81' | |
433 | >>> normcase(b'\\xb8\\xca\\xc3\\xca\\xbe\\xc8.JPG') # issue3918 |
|
435 | >>> normcase(b'\\xb8\\xca\\xc3\\xca\\xbe\\xc8.JPG') # issue3918 | |
434 | '%b8%ca%c3\\xca\\xbe%c8.jpg' |
|
436 | '%b8%ca%c3\\xca\\xbe%c8.jpg' | |
435 | """ |
|
437 | """ | |
436 |
|
438 | |||
437 | try: |
|
439 | try: | |
438 | return encoding.asciilower(path) # exception for non-ASCII |
|
440 | return encoding.asciilower(path) # exception for non-ASCII | |
439 | except UnicodeDecodeError: |
|
441 | except UnicodeDecodeError: | |
440 | return normcasefallback(path) |
|
442 | return normcasefallback(path) | |
441 |
|
443 | |||
442 | normcasespec = encoding.normcasespecs.lower |
|
444 | normcasespec = encoding.normcasespecs.lower | |
443 |
|
445 | |||
444 | def normcasefallback(path: bytes) -> bytes: |
|
446 | def normcasefallback(path: bytes) -> bytes: | |
445 | try: |
|
447 | try: | |
446 | u = path.decode('utf-8') |
|
448 | u = path.decode('utf-8') | |
447 | except UnicodeDecodeError: |
|
449 | except UnicodeDecodeError: | |
448 | # OS X percent-encodes any bytes that aren't valid utf-8 |
|
450 | # OS X percent-encodes any bytes that aren't valid utf-8 | |
449 | s = b'' |
|
451 | s = b'' | |
450 | pos = 0 |
|
452 | pos = 0 | |
451 | l = len(path) |
|
453 | l = len(path) | |
452 | while pos < l: |
|
454 | while pos < l: | |
453 | try: |
|
455 | try: | |
454 | c = encoding.getutf8char(path, pos) |
|
456 | c = encoding.getutf8char(path, pos) | |
455 | pos += len(c) |
|
457 | pos += len(c) | |
456 | except ValueError: |
|
458 | except ValueError: | |
457 | c = b'%%%02X' % ord(path[pos : pos + 1]) |
|
459 | c = b'%%%02X' % ord(path[pos : pos + 1]) | |
458 | pos += 1 |
|
460 | pos += 1 | |
459 | s += c |
|
461 | s += c | |
460 |
|
462 | |||
461 | u = s.decode('utf-8') |
|
463 | u = s.decode('utf-8') | |
462 |
|
464 | |||
463 | # Decompose then lowercase (HFS+ technote specifies lower) |
|
465 | # Decompose then lowercase (HFS+ technote specifies lower) | |
464 | enc = unicodedata.normalize('NFD', u).lower().encode('utf-8') |
|
466 | enc = unicodedata.normalize('NFD', u).lower().encode('utf-8') | |
465 | # drop HFS+ ignored characters |
|
467 | # drop HFS+ ignored characters | |
466 | return encoding.hfsignoreclean(enc) |
|
468 | return encoding.hfsignoreclean(enc) | |
467 |
|
469 | |||
468 |
|
470 | |||
469 | if pycompat.sysplatform == b'cygwin': |
|
471 | if pycompat.sysplatform == b'cygwin': | |
470 | # workaround for cygwin, in which mount point part of path is |
|
472 | # workaround for cygwin, in which mount point part of path is | |
471 | # treated as case sensitive, even though underlying NTFS is case |
|
473 | # treated as case sensitive, even though underlying NTFS is case | |
472 | # insensitive. |
|
474 | # insensitive. | |
473 |
|
475 | |||
474 | # default mount points |
|
476 | # default mount points | |
475 | cygwinmountpoints = sorted( |
|
477 | cygwinmountpoints = sorted( | |
476 | [ |
|
478 | [ | |
477 | b"/usr/bin", |
|
479 | b"/usr/bin", | |
478 | b"/usr/lib", |
|
480 | b"/usr/lib", | |
479 | b"/cygdrive", |
|
481 | b"/cygdrive", | |
480 | ], |
|
482 | ], | |
481 | reverse=True, |
|
483 | reverse=True, | |
482 | ) |
|
484 | ) | |
483 |
|
485 | |||
484 | # use upper-ing as normcase as same as NTFS workaround |
|
486 | # use upper-ing as normcase as same as NTFS workaround | |
485 | def normcase(path: bytes) -> bytes: |
|
487 | def normcase(path: bytes) -> bytes: | |
486 | pathlen = len(path) |
|
488 | pathlen = len(path) | |
487 | if (pathlen == 0) or (path[0] != pycompat.ossep): |
|
489 | if (pathlen == 0) or (path[0] != pycompat.ossep): | |
488 | # treat as relative |
|
490 | # treat as relative | |
489 | return encoding.upper(path) |
|
491 | return encoding.upper(path) | |
490 |
|
492 | |||
491 | # to preserve case of mountpoint part |
|
493 | # to preserve case of mountpoint part | |
492 | for mp in cygwinmountpoints: |
|
494 | for mp in cygwinmountpoints: | |
493 | if not path.startswith(mp): |
|
495 | if not path.startswith(mp): | |
494 | continue |
|
496 | continue | |
495 |
|
497 | |||
496 | mplen = len(mp) |
|
498 | mplen = len(mp) | |
497 | if mplen == pathlen: # mount point itself |
|
499 | if mplen == pathlen: # mount point itself | |
498 | return mp |
|
500 | return mp | |
499 | if path[mplen] == pycompat.ossep: |
|
501 | if path[mplen] == pycompat.ossep: | |
500 | return mp + encoding.upper(path[mplen:]) |
|
502 | return mp + encoding.upper(path[mplen:]) | |
501 |
|
503 | |||
502 | return encoding.upper(path) |
|
504 | return encoding.upper(path) | |
503 |
|
505 | |||
504 | normcasespec = encoding.normcasespecs.other |
|
506 | normcasespec = encoding.normcasespecs.other | |
505 | normcasefallback = normcase |
|
507 | normcasefallback = normcase | |
506 |
|
508 | |||
507 | # Cygwin translates native ACLs to POSIX permissions, |
|
509 | # Cygwin translates native ACLs to POSIX permissions, | |
508 | # but these translations are not supported by native |
|
510 | # but these translations are not supported by native | |
509 | # tools, so the exec bit tends to be set erroneously. |
|
511 | # tools, so the exec bit tends to be set erroneously. | |
510 | # Therefore, disable executable bit access on Cygwin. |
|
512 | # Therefore, disable executable bit access on Cygwin. | |
511 | def checkexec(path: bytes) -> bool: |
|
513 | def checkexec(path: bytes) -> bool: | |
512 | return False |
|
514 | return False | |
513 |
|
515 | |||
514 | # Similarly, Cygwin's symlink emulation is likely to create |
|
516 | # Similarly, Cygwin's symlink emulation is likely to create | |
515 | # problems when Mercurial is used from both Cygwin and native |
|
517 | # problems when Mercurial is used from both Cygwin and native | |
516 | # Windows, with other native tools, or on shared volumes |
|
518 | # Windows, with other native tools, or on shared volumes | |
517 | def checklink(path: bytes) -> bool: |
|
519 | def checklink(path: bytes) -> bool: | |
518 | return False |
|
520 | return False | |
519 |
|
521 | |||
520 |
|
522 | |||
521 | _needsshellquote = None |
|
523 | _needsshellquote: Optional[Match[bytes]] = None | |
522 |
|
524 | |||
523 |
|
525 | |||
524 | def shellquote(s: bytes) -> bytes: |
|
526 | def shellquote(s: bytes) -> bytes: | |
525 | if pycompat.sysplatform == b'OpenVMS': |
|
527 | if pycompat.sysplatform == b'OpenVMS': | |
526 | return b'"%s"' % s |
|
528 | return b'"%s"' % s | |
527 | global _needsshellquote |
|
529 | global _needsshellquote | |
528 | if _needsshellquote is None: |
|
530 | if _needsshellquote is None: | |
529 | _needsshellquote = re.compile(br'[^a-zA-Z0-9._/+-]').search |
|
531 | _needsshellquote = re.compile(br'[^a-zA-Z0-9._/+-]').search | |
530 | if s and not _needsshellquote(s): |
|
532 | if s and not _needsshellquote(s): | |
531 | # "s" shouldn't have to be quoted |
|
533 | # "s" shouldn't have to be quoted | |
532 | return s |
|
534 | return s | |
533 | else: |
|
535 | else: | |
534 | return b"'%s'" % s.replace(b"'", b"'\\''") |
|
536 | return b"'%s'" % s.replace(b"'", b"'\\''") | |
535 |
|
537 | |||
536 |
|
538 | |||
537 | def shellsplit(s: bytes) -> List[bytes]: |
|
539 | def shellsplit(s: bytes) -> List[bytes]: | |
538 | """Parse a command string in POSIX shell way (best-effort)""" |
|
540 | """Parse a command string in POSIX shell way (best-effort)""" | |
539 | return pycompat.shlexsplit(s, posix=True) |
|
541 | return pycompat.shlexsplit(s, posix=True) | |
540 |
|
542 | |||
541 |
|
543 | |||
542 | def testpid(pid: int) -> bool: |
|
544 | def testpid(pid: int) -> bool: | |
543 | '''return False if pid dead, True if running or not sure''' |
|
545 | '''return False if pid dead, True if running or not sure''' | |
544 | if pycompat.sysplatform == b'OpenVMS': |
|
546 | if pycompat.sysplatform == b'OpenVMS': | |
545 | return True |
|
547 | return True | |
546 | try: |
|
548 | try: | |
547 | os.kill(pid, 0) |
|
549 | os.kill(pid, 0) | |
548 | return True |
|
550 | return True | |
549 | except OSError as inst: |
|
551 | except OSError as inst: | |
550 | return inst.errno != errno.ESRCH |
|
552 | return inst.errno != errno.ESRCH | |
551 |
|
553 | |||
552 |
|
554 | |||
553 | def isowner(st: os.stat_result) -> bool: |
|
555 | def isowner(st: os.stat_result) -> bool: | |
554 | """Return True if the stat object st is from the current user.""" |
|
556 | """Return True if the stat object st is from the current user.""" | |
555 | return st.st_uid == os.getuid() |
|
557 | return st.st_uid == os.getuid() | |
556 |
|
558 | |||
557 |
|
559 | |||
558 | def findexe(command: bytes) -> Optional[bytes]: |
|
560 | def findexe(command: bytes) -> Optional[bytes]: | |
559 | """Find executable for command searching like which does. |
|
561 | """Find executable for command searching like which does. | |
560 | If command is a basename then PATH is searched for command. |
|
562 | If command is a basename then PATH is searched for command. | |
561 | PATH isn't searched if command is an absolute or relative path. |
|
563 | PATH isn't searched if command is an absolute or relative path. | |
562 | If command isn't found None is returned.""" |
|
564 | If command isn't found None is returned.""" | |
563 | if pycompat.sysplatform == b'OpenVMS': |
|
565 | if pycompat.sysplatform == b'OpenVMS': | |
564 | return command |
|
566 | return command | |
565 |
|
567 | |||
566 | def findexisting(executable: bytes) -> Optional[bytes]: |
|
568 | def findexisting(executable: bytes) -> Optional[bytes]: | |
567 | b'Will return executable if existing file' |
|
569 | b'Will return executable if existing file' | |
568 | if os.path.isfile(executable) and os.access(executable, os.X_OK): |
|
570 | if os.path.isfile(executable) and os.access(executable, os.X_OK): | |
569 | return executable |
|
571 | return executable | |
570 | return None |
|
572 | return None | |
571 |
|
573 | |||
572 | if pycompat.ossep in command: |
|
574 | if pycompat.ossep in command: | |
573 | return findexisting(command) |
|
575 | return findexisting(command) | |
574 |
|
576 | |||
575 | if pycompat.sysplatform == b'plan9': |
|
577 | if pycompat.sysplatform == b'plan9': | |
576 | return findexisting(os.path.join(b'/bin', command)) |
|
578 | return findexisting(os.path.join(b'/bin', command)) | |
577 |
|
579 | |||
578 | for path in encoding.environ.get(b'PATH', b'').split(pycompat.ospathsep): |
|
580 | for path in encoding.environ.get(b'PATH', b'').split(pycompat.ospathsep): | |
579 | executable = findexisting(os.path.join(path, command)) |
|
581 | executable = findexisting(os.path.join(path, command)) | |
580 | if executable is not None: |
|
582 | if executable is not None: | |
581 | return executable |
|
583 | return executable | |
582 | return None |
|
584 | return None | |
583 |
|
585 | |||
584 |
|
586 | |||
585 | def setsignalhandler() -> None: |
|
587 | def setsignalhandler() -> None: | |
586 | pass |
|
588 | pass | |
587 |
|
589 | |||
588 |
|
590 | |||
589 | _wantedkinds = {stat.S_IFREG, stat.S_IFLNK} |
|
591 | _wantedkinds = {stat.S_IFREG, stat.S_IFLNK} | |
590 |
|
592 | |||
591 |
|
593 | |||
592 | def statfiles(files: Sequence[bytes]) -> Iterator[Optional[os.stat_result]]: |
|
594 | def statfiles(files: Sequence[bytes]) -> Iterator[Optional[os.stat_result]]: | |
593 | """Stat each file in files. Yield each stat, or None if a file does not |
|
595 | """Stat each file in files. Yield each stat, or None if a file does not | |
594 | exist or has a type we don't care about.""" |
|
596 | exist or has a type we don't care about.""" | |
595 | lstat = os.lstat |
|
597 | lstat = os.lstat | |
596 | getkind = stat.S_IFMT |
|
598 | getkind = stat.S_IFMT | |
597 | for nf in files: |
|
599 | for nf in files: | |
598 | try: |
|
600 | try: | |
599 | st = lstat(nf) |
|
601 | st = lstat(nf) | |
600 | if getkind(st.st_mode) not in _wantedkinds: |
|
602 | if getkind(st.st_mode) not in _wantedkinds: | |
601 | st = None |
|
603 | st = None | |
602 | except (FileNotFoundError, NotADirectoryError): |
|
604 | except (FileNotFoundError, NotADirectoryError): | |
603 | st = None |
|
605 | st = None | |
604 | yield st |
|
606 | yield st | |
605 |
|
607 | |||
606 |
|
608 | |||
607 | def getuser() -> bytes: |
|
609 | def getuser() -> bytes: | |
608 | '''return name of current user''' |
|
610 | '''return name of current user''' | |
609 | return pycompat.fsencode(getpass.getuser()) |
|
611 | return pycompat.fsencode(getpass.getuser()) | |
610 |
|
612 | |||
611 |
|
613 | |||
612 | def username(uid: Optional[int] = None) -> Optional[bytes]: |
|
614 | def username(uid: Optional[int] = None) -> Optional[bytes]: | |
613 | """Return the name of the user with the given uid. |
|
615 | """Return the name of the user with the given uid. | |
614 |
|
616 | |||
615 | If uid is None, return the name of the current user.""" |
|
617 | If uid is None, return the name of the current user.""" | |
616 |
|
618 | |||
617 | if uid is None: |
|
619 | if uid is None: | |
618 | uid = os.getuid() |
|
620 | uid = os.getuid() | |
619 | try: |
|
621 | try: | |
620 | return pycompat.fsencode(pwd.getpwuid(uid)[0]) |
|
622 | return pycompat.fsencode(pwd.getpwuid(uid)[0]) | |
621 | except KeyError: |
|
623 | except KeyError: | |
622 | return b'%d' % uid |
|
624 | return b'%d' % uid | |
623 |
|
625 | |||
624 |
|
626 | |||
625 | def groupname(gid: Optional[int] = None) -> Optional[bytes]: |
|
627 | def groupname(gid: Optional[int] = None) -> Optional[bytes]: | |
626 | """Return the name of the group with the given gid. |
|
628 | """Return the name of the group with the given gid. | |
627 |
|
629 | |||
628 | If gid is None, return the name of the current group.""" |
|
630 | If gid is None, return the name of the current group.""" | |
629 |
|
631 | |||
630 | if gid is None: |
|
632 | if gid is None: | |
631 | gid = os.getgid() |
|
633 | gid = os.getgid() | |
632 | try: |
|
634 | try: | |
633 | return pycompat.fsencode(grp.getgrgid(gid)[0]) |
|
635 | return pycompat.fsencode(grp.getgrgid(gid)[0]) | |
634 | except KeyError: |
|
636 | except KeyError: | |
635 | return pycompat.bytestr(gid) |
|
637 | return pycompat.bytestr(gid) | |
636 |
|
638 | |||
637 |
|
639 | |||
638 | def groupmembers(name: bytes) -> List[bytes]: |
|
640 | def groupmembers(name: bytes) -> List[bytes]: | |
639 | """Return the list of members of the group with the given |
|
641 | """Return the list of members of the group with the given | |
640 | name, KeyError if the group does not exist. |
|
642 | name, KeyError if the group does not exist. | |
641 | """ |
|
643 | """ | |
642 | name = pycompat.fsdecode(name) |
|
644 | name = pycompat.fsdecode(name) | |
643 | return pycompat.rapply(pycompat.fsencode, list(grp.getgrnam(name).gr_mem)) |
|
645 | return pycompat.rapply(pycompat.fsencode, list(grp.getgrnam(name).gr_mem)) | |
644 |
|
646 | |||
645 |
|
647 | |||
646 | def spawndetached(args: List[bytes]) -> int: |
|
648 | def spawndetached(args: List[bytes]) -> int: | |
647 | return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), args[0], args) |
|
649 | return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), args[0], args) | |
648 |
|
650 | |||
649 |
|
651 | |||
650 | def gethgcmd(): |
|
652 | def gethgcmd(): # TODO: convert to bytes, like on Windows? | |
651 | return sys.argv[:1] |
|
653 | return sys.argv[:1] | |
652 |
|
654 | |||
653 |
|
655 | |||
654 | def makedir(path: bytes, notindexed: bool) -> None: |
|
656 | def makedir(path: bytes, notindexed: bool) -> None: | |
655 | os.mkdir(path) |
|
657 | os.mkdir(path) | |
656 |
|
658 | |||
657 |
|
659 | |||
658 | def lookupreg( |
|
660 | def lookupreg( | |
659 | key: bytes, |
|
661 | key: bytes, | |
660 | name: Optional[bytes] = None, |
|
662 | name: Optional[bytes] = None, | |
661 | scope: Optional[Union[int, Iterable[int]]] = None, |
|
663 | scope: Optional[Union[int, Iterable[int]]] = None, | |
662 | ) -> Optional[bytes]: |
|
664 | ) -> Optional[bytes]: | |
663 | return None |
|
665 | return None | |
664 |
|
666 | |||
665 |
|
667 | |||
666 | def hidewindow() -> None: |
|
668 | def hidewindow() -> None: | |
667 | """Hide current shell window. |
|
669 | """Hide current shell window. | |
668 |
|
670 | |||
669 | Used to hide the window opened when starting asynchronous |
|
671 | Used to hide the window opened when starting asynchronous | |
670 | child process under Windows, unneeded on other systems. |
|
672 | child process under Windows, unneeded on other systems. | |
671 | """ |
|
673 | """ | |
672 | pass |
|
674 | pass | |
673 |
|
675 | |||
674 |
|
676 | |||
675 | class cachestat: |
|
677 | class cachestat: | |
676 | def __init__(self, path: bytes) -> None: |
|
678 | def __init__(self, path: bytes) -> None: | |
677 | self.stat = os.stat(path) |
|
679 | self.stat = os.stat(path) | |
678 |
|
680 | |||
679 | def cacheable(self) -> bool: |
|
681 | def cacheable(self) -> bool: | |
680 | return bool(self.stat.st_ino) |
|
682 | return bool(self.stat.st_ino) | |
681 |
|
683 | |||
682 | __hash__ = object.__hash__ |
|
684 | __hash__ = object.__hash__ | |
683 |
|
685 | |||
684 | def __eq__(self, other: Any) -> bool: |
|
686 | def __eq__(self, other: Any) -> bool: | |
685 | try: |
|
687 | try: | |
686 | # Only dev, ino, size, mtime and atime are likely to change. Out |
|
688 | # Only dev, ino, size, mtime and atime are likely to change. Out | |
687 | # of these, we shouldn't compare atime but should compare the |
|
689 | # of these, we shouldn't compare atime but should compare the | |
688 | # rest. However, one of the other fields changing indicates |
|
690 | # rest. However, one of the other fields changing indicates | |
689 | # something fishy going on, so return False if anything but atime |
|
691 | # something fishy going on, so return False if anything but atime | |
690 | # changes. |
|
692 | # changes. | |
691 | return ( |
|
693 | return ( | |
692 | self.stat.st_mode == other.stat.st_mode |
|
694 | self.stat.st_mode == other.stat.st_mode | |
693 | and self.stat.st_ino == other.stat.st_ino |
|
695 | and self.stat.st_ino == other.stat.st_ino | |
694 | and self.stat.st_dev == other.stat.st_dev |
|
696 | and self.stat.st_dev == other.stat.st_dev | |
695 | and self.stat.st_nlink == other.stat.st_nlink |
|
697 | and self.stat.st_nlink == other.stat.st_nlink | |
696 | and self.stat.st_uid == other.stat.st_uid |
|
698 | and self.stat.st_uid == other.stat.st_uid | |
697 | and self.stat.st_gid == other.stat.st_gid |
|
699 | and self.stat.st_gid == other.stat.st_gid | |
698 | and self.stat.st_size == other.stat.st_size |
|
700 | and self.stat.st_size == other.stat.st_size | |
699 | and self.stat[stat.ST_MTIME] == other.stat[stat.ST_MTIME] |
|
701 | and self.stat[stat.ST_MTIME] == other.stat[stat.ST_MTIME] | |
700 | and self.stat[stat.ST_CTIME] == other.stat[stat.ST_CTIME] |
|
702 | and self.stat[stat.ST_CTIME] == other.stat[stat.ST_CTIME] | |
701 | ) |
|
703 | ) | |
702 | except AttributeError: |
|
704 | except AttributeError: | |
703 | return False |
|
705 | return False | |
704 |
|
706 | |||
705 | def __ne__(self, other: Any) -> bool: |
|
707 | def __ne__(self, other: Any) -> bool: | |
706 | return not self == other |
|
708 | return not self == other | |
707 |
|
709 | |||
708 |
|
710 | |||
709 | def statislink(st: Optional[os.stat_result]) -> bool: |
|
711 | def statislink(st: Optional[os.stat_result]) -> bool: | |
710 | '''check whether a stat result is a symlink''' |
|
712 | '''check whether a stat result is a symlink''' | |
711 | return stat.S_ISLNK(st.st_mode) if st else False |
|
713 | return stat.S_ISLNK(st.st_mode) if st else False | |
712 |
|
714 | |||
713 |
|
715 | |||
714 | def statisexec(st: Optional[os.stat_result]) -> bool: |
|
716 | def statisexec(st: Optional[os.stat_result]) -> bool: | |
715 | '''check whether a stat result is an executable file''' |
|
717 | '''check whether a stat result is an executable file''' | |
716 | return (st.st_mode & 0o100 != 0) if st else False |
|
718 | return (st.st_mode & 0o100 != 0) if st else False | |
717 |
|
719 | |||
718 |
|
720 | |||
719 | def poll(fds): |
|
721 | def poll(fds): | |
720 | """block until something happens on any file descriptor |
|
722 | """block until something happens on any file descriptor | |
721 |
|
723 | |||
722 | This is a generic helper that will check for any activity |
|
724 | This is a generic helper that will check for any activity | |
723 | (read, write. exception) and return the list of touched files. |
|
725 | (read, write. exception) and return the list of touched files. | |
724 |
|
726 | |||
725 | In unsupported cases, it will raise a NotImplementedError""" |
|
727 | In unsupported cases, it will raise a NotImplementedError""" | |
726 | try: |
|
728 | try: | |
727 | res = select.select(fds, fds, fds) |
|
729 | res = select.select(fds, fds, fds) | |
728 | except ValueError: # out of range file descriptor |
|
730 | except ValueError: # out of range file descriptor | |
729 | raise NotImplementedError() |
|
731 | raise NotImplementedError() | |
730 | return sorted(list(set(sum(res, [])))) |
|
732 | return sorted(list(set(sum(res, [])))) | |
731 |
|
733 | |||
732 |
|
734 | |||
733 | def readpipe(pipe) -> bytes: |
|
735 | def readpipe(pipe) -> bytes: | |
734 | """Read all available data from a pipe.""" |
|
736 | """Read all available data from a pipe.""" | |
735 | # We can't fstat() a pipe because Linux will always report 0. |
|
737 | # We can't fstat() a pipe because Linux will always report 0. | |
736 | # So, we set the pipe to non-blocking mode and read everything |
|
738 | # So, we set the pipe to non-blocking mode and read everything | |
737 | # that's available. |
|
739 | # that's available. | |
738 | flags = fcntl.fcntl(pipe, fcntl.F_GETFL) |
|
740 | flags = fcntl.fcntl(pipe, fcntl.F_GETFL) | |
739 | flags |= os.O_NONBLOCK |
|
741 | flags |= os.O_NONBLOCK | |
740 | oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) |
|
742 | oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) | |
741 |
|
743 | |||
742 | try: |
|
744 | try: | |
743 | chunks = [] |
|
745 | chunks = [] | |
744 | while True: |
|
746 | while True: | |
745 | try: |
|
747 | try: | |
746 | s = pipe.read() |
|
748 | s = pipe.read() | |
747 | if not s: |
|
749 | if not s: | |
748 | break |
|
750 | break | |
749 | chunks.append(s) |
|
751 | chunks.append(s) | |
750 | except IOError: |
|
752 | except IOError: | |
751 | break |
|
753 | break | |
752 |
|
754 | |||
753 | return b''.join(chunks) |
|
755 | return b''.join(chunks) | |
754 | finally: |
|
756 | finally: | |
755 | fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) |
|
757 | fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) | |
756 |
|
758 | |||
757 |
|
759 | |||
758 | def bindunixsocket(sock, path: bytes) -> None: |
|
760 | def bindunixsocket(sock, path: bytes) -> None: | |
759 | """Bind the UNIX domain socket to the specified path""" |
|
761 | """Bind the UNIX domain socket to the specified path""" | |
760 | # use relative path instead of full path at bind() if possible, since |
|
762 | # use relative path instead of full path at bind() if possible, since | |
761 | # AF_UNIX path has very small length limit (107 chars) on common |
|
763 | # AF_UNIX path has very small length limit (107 chars) on common | |
762 | # platforms (see sys/un.h) |
|
764 | # platforms (see sys/un.h) | |
763 | dirname, basename = os.path.split(path) |
|
765 | dirname, basename = os.path.split(path) | |
764 | bakwdfd = None |
|
766 | bakwdfd = None | |
765 |
|
767 | |||
766 | try: |
|
768 | try: | |
767 | if dirname: |
|
769 | if dirname: | |
768 | bakwdfd = os.open(b'.', os.O_DIRECTORY) |
|
770 | bakwdfd = os.open(b'.', os.O_DIRECTORY) | |
769 | os.chdir(dirname) |
|
771 | os.chdir(dirname) | |
770 | sock.bind(basename) |
|
772 | sock.bind(basename) | |
771 | if bakwdfd: |
|
773 | if bakwdfd: | |
772 | os.fchdir(bakwdfd) |
|
774 | os.fchdir(bakwdfd) | |
773 | finally: |
|
775 | finally: | |
774 | if bakwdfd: |
|
776 | if bakwdfd: | |
775 | os.close(bakwdfd) |
|
777 | os.close(bakwdfd) |
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