Show More
@@ -1,329 +1,331 b'' | |||||
1 | # posix.py - Posix utility function implementations for Mercurial |
|
1 | # posix.py - Posix utility function implementations for Mercurial | |
2 | # |
|
2 | # | |
3 | # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
|
3 | # Copyright 2005-2009 Matt Mackall <mpm@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 | from i18n import _ |
|
8 | from i18n import _ | |
9 | import os, sys, errno, stat, getpass, pwd, grp, tempfile |
|
9 | import os, sys, errno, stat, getpass, pwd, grp, tempfile | |
10 |
|
10 | |||
11 | posixfile = open |
|
11 | posixfile = open | |
12 | nulldev = '/dev/null' |
|
12 | nulldev = '/dev/null' | |
13 | normpath = os.path.normpath |
|
13 | normpath = os.path.normpath | |
14 | samestat = os.path.samestat |
|
14 | samestat = os.path.samestat | |
15 | os_link = os.link |
|
15 | os_link = os.link | |
16 | unlink = os.unlink |
|
16 | unlink = os.unlink | |
17 | rename = os.rename |
|
17 | rename = os.rename | |
18 | expandglobs = False |
|
18 | expandglobs = False | |
19 |
|
19 | |||
20 | umask = os.umask(0) |
|
20 | umask = os.umask(0) | |
21 | os.umask(umask) |
|
21 | os.umask(umask) | |
22 |
|
22 | |||
23 | def openhardlinks(): |
|
23 | def openhardlinks(): | |
24 | '''return true if it is safe to hold open file handles to hardlinks''' |
|
24 | '''return true if it is safe to hold open file handles to hardlinks''' | |
25 | return True |
|
25 | return True | |
26 |
|
26 | |||
27 | def nlinks(name): |
|
27 | def nlinks(name): | |
28 | '''return number of hardlinks for the given file''' |
|
28 | '''return number of hardlinks for the given file''' | |
29 | return os.lstat(name).st_nlink |
|
29 | return os.lstat(name).st_nlink | |
30 |
|
30 | |||
31 | def parse_patch_output(output_line): |
|
31 | def parse_patch_output(output_line): | |
32 | """parses the output produced by patch and returns the filename""" |
|
32 | """parses the output produced by patch and returns the filename""" | |
33 | pf = output_line[14:] |
|
33 | pf = output_line[14:] | |
34 | if os.sys.platform == 'OpenVMS': |
|
34 | if os.sys.platform == 'OpenVMS': | |
35 | if pf[0] == '`': |
|
35 | if pf[0] == '`': | |
36 | pf = pf[1:-1] # Remove the quotes |
|
36 | pf = pf[1:-1] # Remove the quotes | |
37 | else: |
|
37 | else: | |
38 | if pf.startswith("'") and pf.endswith("'") and " " in pf: |
|
38 | if pf.startswith("'") and pf.endswith("'") and " " in pf: | |
39 | pf = pf[1:-1] # Remove the quotes |
|
39 | pf = pf[1:-1] # Remove the quotes | |
40 | return pf |
|
40 | return pf | |
41 |
|
41 | |||
42 | def sshargs(sshcmd, host, user, port): |
|
42 | def sshargs(sshcmd, host, user, port): | |
43 | '''Build argument list for ssh''' |
|
43 | '''Build argument list for ssh''' | |
44 | args = user and ("%s@%s" % (user, host)) or host |
|
44 | args = user and ("%s@%s" % (user, host)) or host | |
45 | return port and ("%s -p %s" % (args, port)) or args |
|
45 | return port and ("%s -p %s" % (args, port)) or args | |
46 |
|
46 | |||
47 | def is_exec(f): |
|
47 | def is_exec(f): | |
48 | """check whether a file is executable""" |
|
48 | """check whether a file is executable""" | |
49 | return (os.lstat(f).st_mode & 0100 != 0) |
|
49 | return (os.lstat(f).st_mode & 0100 != 0) | |
50 |
|
50 | |||
51 | def set_flags(f, l, x): |
|
51 | def set_flags(f, l, x): | |
52 | s = os.lstat(f).st_mode |
|
52 | s = os.lstat(f).st_mode | |
53 | if l: |
|
53 | if l: | |
54 | if not stat.S_ISLNK(s): |
|
54 | if not stat.S_ISLNK(s): | |
55 | # switch file to link |
|
55 | # switch file to link | |
56 | fp = open(f) |
|
56 | fp = open(f) | |
57 | data = fp.read() |
|
57 | data = fp.read() | |
58 | fp.close() |
|
58 | fp.close() | |
59 | os.unlink(f) |
|
59 | os.unlink(f) | |
60 | try: |
|
60 | try: | |
61 | os.symlink(data, f) |
|
61 | os.symlink(data, f) | |
62 | except OSError: |
|
62 | except OSError: | |
63 | # failed to make a link, rewrite file |
|
63 | # failed to make a link, rewrite file | |
64 | fp = open(f, "w") |
|
64 | fp = open(f, "w") | |
65 | fp.write(data) |
|
65 | fp.write(data) | |
66 | fp.close() |
|
66 | fp.close() | |
67 | # no chmod needed at this point |
|
67 | # no chmod needed at this point | |
68 | return |
|
68 | return | |
69 | if stat.S_ISLNK(s): |
|
69 | if stat.S_ISLNK(s): | |
70 | # switch link to file |
|
70 | # switch link to file | |
71 | data = os.readlink(f) |
|
71 | data = os.readlink(f) | |
72 | os.unlink(f) |
|
72 | os.unlink(f) | |
73 | fp = open(f, "w") |
|
73 | fp = open(f, "w") | |
74 | fp.write(data) |
|
74 | fp.write(data) | |
75 | fp.close() |
|
75 | fp.close() | |
76 | s = 0666 & ~umask # avoid restatting for chmod |
|
76 | s = 0666 & ~umask # avoid restatting for chmod | |
77 |
|
77 | |||
78 | sx = s & 0100 |
|
78 | sx = s & 0100 | |
79 | if x and not sx: |
|
79 | if x and not sx: | |
80 | # Turn on +x for every +r bit when making a file executable |
|
80 | # Turn on +x for every +r bit when making a file executable | |
81 | # and obey umask. |
|
81 | # and obey umask. | |
82 | os.chmod(f, s | (s & 0444) >> 2 & ~umask) |
|
82 | os.chmod(f, s | (s & 0444) >> 2 & ~umask) | |
83 | elif not x and sx: |
|
83 | elif not x and sx: | |
84 | # Turn off all +x bits |
|
84 | # Turn off all +x bits | |
85 | os.chmod(f, s & 0666) |
|
85 | os.chmod(f, s & 0666) | |
86 |
|
86 | |||
87 | def checkexec(path): |
|
87 | def checkexec(path): | |
88 | """ |
|
88 | """ | |
89 | Check whether the given path is on a filesystem with UNIX-like exec flags |
|
89 | Check whether the given path is on a filesystem with UNIX-like exec flags | |
90 |
|
90 | |||
91 | Requires a directory (like /foo/.hg) |
|
91 | Requires a directory (like /foo/.hg) | |
92 | """ |
|
92 | """ | |
93 |
|
93 | |||
94 | # VFAT on some Linux versions can flip mode but it doesn't persist |
|
94 | # VFAT on some Linux versions can flip mode but it doesn't persist | |
95 | # a FS remount. Frequently we can detect it if files are created |
|
95 | # a FS remount. Frequently we can detect it if files are created | |
96 | # with exec bit on. |
|
96 | # with exec bit on. | |
97 |
|
97 | |||
98 | try: |
|
98 | try: | |
99 | EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
|
99 | EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH | |
100 | fh, fn = tempfile.mkstemp(dir=path, prefix='hg-checkexec-') |
|
100 | fh, fn = tempfile.mkstemp(dir=path, prefix='hg-checkexec-') | |
101 | try: |
|
101 | try: | |
102 | os.close(fh) |
|
102 | os.close(fh) | |
103 | m = os.stat(fn).st_mode & 0777 |
|
103 | m = os.stat(fn).st_mode & 0777 | |
104 | new_file_has_exec = m & EXECFLAGS |
|
104 | new_file_has_exec = m & EXECFLAGS | |
105 | os.chmod(fn, m ^ EXECFLAGS) |
|
105 | os.chmod(fn, m ^ EXECFLAGS) | |
106 | exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m) |
|
106 | exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m) | |
107 | finally: |
|
107 | finally: | |
108 | os.unlink(fn) |
|
108 | os.unlink(fn) | |
109 | except (IOError, OSError): |
|
109 | except (IOError, OSError): | |
110 | # we don't care, the user probably won't be able to commit anyway |
|
110 | # we don't care, the user probably won't be able to commit anyway | |
111 | return False |
|
111 | return False | |
112 | return not (new_file_has_exec or exec_flags_cannot_flip) |
|
112 | return not (new_file_has_exec or exec_flags_cannot_flip) | |
113 |
|
113 | |||
114 | def checklink(path): |
|
114 | def checklink(path): | |
115 | """check whether the given path is on a symlink-capable filesystem""" |
|
115 | """check whether the given path is on a symlink-capable filesystem""" | |
116 | # mktemp is not racy because symlink creation will fail if the |
|
116 | # mktemp is not racy because symlink creation will fail if the | |
117 | # file already exists |
|
117 | # file already exists | |
118 | name = tempfile.mktemp(dir=path, prefix='hg-checklink-') |
|
118 | name = tempfile.mktemp(dir=path, prefix='hg-checklink-') | |
119 | try: |
|
119 | try: | |
120 | os.symlink(".", name) |
|
120 | os.symlink(".", name) | |
121 | os.unlink(name) |
|
121 | os.unlink(name) | |
122 | return True |
|
122 | return True | |
123 | except (OSError, AttributeError): |
|
123 | except (OSError, AttributeError): | |
124 | return False |
|
124 | return False | |
125 |
|
125 | |||
126 | def checkosfilename(path): |
|
126 | def checkosfilename(path): | |
127 | '''Check that the base-relative path is a valid filename on this platform. |
|
127 | '''Check that the base-relative path is a valid filename on this platform. | |
128 | Returns None if the path is ok, or a UI string describing the problem.''' |
|
128 | Returns None if the path is ok, or a UI string describing the problem.''' | |
129 | pass # on posix platforms, every path is ok |
|
129 | pass # on posix platforms, every path is ok | |
130 |
|
130 | |||
131 | def set_binary(fd): |
|
131 | def set_binary(fd): | |
132 | pass |
|
132 | pass | |
133 |
|
133 | |||
134 | def pconvert(path): |
|
134 | def pconvert(path): | |
135 | return path |
|
135 | return path | |
136 |
|
136 | |||
137 | def localpath(path): |
|
137 | def localpath(path): | |
138 | return path |
|
138 | return path | |
139 |
|
139 | |||
140 | def samefile(fpath1, fpath2): |
|
140 | def samefile(fpath1, fpath2): | |
141 | """Returns whether path1 and path2 refer to the same file. This is only |
|
141 | """Returns whether path1 and path2 refer to the same file. This is only | |
142 | guaranteed to work for files, not directories.""" |
|
142 | guaranteed to work for files, not directories.""" | |
143 | return os.path.samefile(fpath1, fpath2) |
|
143 | return os.path.samefile(fpath1, fpath2) | |
144 |
|
144 | |||
145 | def samedevice(fpath1, fpath2): |
|
145 | def samedevice(fpath1, fpath2): | |
146 | """Returns whether fpath1 and fpath2 are on the same device. This is only |
|
146 | """Returns whether fpath1 and fpath2 are on the same device. This is only | |
147 | guaranteed to work for files, not directories.""" |
|
147 | guaranteed to work for files, not directories.""" | |
148 | st1 = os.lstat(fpath1) |
|
148 | st1 = os.lstat(fpath1) | |
149 | st2 = os.lstat(fpath2) |
|
149 | st2 = os.lstat(fpath2) | |
150 | return st1.st_dev == st2.st_dev |
|
150 | return st1.st_dev == st2.st_dev | |
151 |
|
151 | |||
152 | if sys.platform == 'darwin': |
|
152 | if sys.platform == 'darwin': | |
153 | import fcntl # only needed on darwin, missing on jython |
|
153 | import fcntl # only needed on darwin, missing on jython | |
154 | def realpath(path): |
|
154 | def realpath(path): | |
155 | ''' |
|
155 | ''' | |
156 | Returns the true, canonical file system path equivalent to the given |
|
156 | Returns the true, canonical file system path equivalent to the given | |
157 | path. |
|
157 | path. | |
158 |
|
158 | |||
159 | Equivalent means, in this case, resulting in the same, unique |
|
159 | Equivalent means, in this case, resulting in the same, unique | |
160 | file system link to the path. Every file system entry, whether a file, |
|
160 | file system link to the path. Every file system entry, whether a file, | |
161 | directory, hard link or symbolic link or special, will have a single |
|
161 | directory, hard link or symbolic link or special, will have a single | |
162 | path preferred by the system, but may allow multiple, differing path |
|
162 | path preferred by the system, but may allow multiple, differing path | |
163 | lookups to point to it. |
|
163 | lookups to point to it. | |
164 |
|
164 | |||
165 | Most regular UNIX file systems only allow a file system entry to be |
|
165 | Most regular UNIX file systems only allow a file system entry to be | |
166 | looked up by its distinct path. Obviously, this does not apply to case |
|
166 | looked up by its distinct path. Obviously, this does not apply to case | |
167 | insensitive file systems, whether case preserving or not. The most |
|
167 | insensitive file systems, whether case preserving or not. The most | |
168 | complex issue to deal with is file systems transparently reencoding the |
|
168 | complex issue to deal with is file systems transparently reencoding the | |
169 | path, such as the non-standard Unicode normalisation required for HFS+ |
|
169 | path, such as the non-standard Unicode normalisation required for HFS+ | |
170 | and HFSX. |
|
170 | and HFSX. | |
171 | ''' |
|
171 | ''' | |
172 | # Constants copied from /usr/include/sys/fcntl.h |
|
172 | # Constants copied from /usr/include/sys/fcntl.h | |
173 | F_GETPATH = 50 |
|
173 | F_GETPATH = 50 | |
174 | O_SYMLINK = 0x200000 |
|
174 | O_SYMLINK = 0x200000 | |
175 |
|
175 | |||
176 | try: |
|
176 | try: | |
177 | fd = os.open(path, O_SYMLINK) |
|
177 | fd = os.open(path, O_SYMLINK) | |
178 | except OSError, err: |
|
178 | except OSError, err: | |
179 | if err.errno == errno.ENOENT: |
|
179 | if err.errno == errno.ENOENT: | |
180 | return path |
|
180 | return path | |
181 | raise |
|
181 | raise | |
182 |
|
182 | |||
183 | try: |
|
183 | try: | |
184 | return fcntl.fcntl(fd, F_GETPATH, '\0' * 1024).rstrip('\0') |
|
184 | return fcntl.fcntl(fd, F_GETPATH, '\0' * 1024).rstrip('\0') | |
185 | finally: |
|
185 | finally: | |
186 | os.close(fd) |
|
186 | os.close(fd) | |
187 | else: |
|
187 | else: | |
188 | # Fallback to the likely inadequate Python builtin function. |
|
188 | # Fallback to the likely inadequate Python builtin function. | |
189 | realpath = os.path.realpath |
|
189 | realpath = os.path.realpath | |
190 |
|
190 | |||
191 | def shellquote(s): |
|
191 | def shellquote(s): | |
192 | if os.sys.platform == 'OpenVMS': |
|
192 | if os.sys.platform == 'OpenVMS': | |
193 | return '"%s"' % s |
|
193 | return '"%s"' % s | |
194 | else: |
|
194 | else: | |
195 | return "'%s'" % s.replace("'", "'\\''") |
|
195 | return "'%s'" % s.replace("'", "'\\''") | |
196 |
|
196 | |||
197 | def quotecommand(cmd): |
|
197 | def quotecommand(cmd): | |
198 | return cmd |
|
198 | return cmd | |
199 |
|
199 | |||
200 | def popen(command, mode='r'): |
|
200 | def popen(command, mode='r'): | |
201 | return os.popen(command, mode) |
|
201 | return os.popen(command, mode) | |
202 |
|
202 | |||
203 | def testpid(pid): |
|
203 | def testpid(pid): | |
204 | '''return False if pid dead, True if running or not sure''' |
|
204 | '''return False if pid dead, True if running or not sure''' | |
205 | if os.sys.platform == 'OpenVMS': |
|
205 | if os.sys.platform == 'OpenVMS': | |
206 | return True |
|
206 | return True | |
207 | try: |
|
207 | try: | |
208 | os.kill(pid, 0) |
|
208 | os.kill(pid, 0) | |
209 | return True |
|
209 | return True | |
210 | except OSError, inst: |
|
210 | except OSError, inst: | |
211 | return inst.errno != errno.ESRCH |
|
211 | return inst.errno != errno.ESRCH | |
212 |
|
212 | |||
213 | def explain_exit(code): |
|
213 | def explain_exit(code): | |
214 | """return a 2-tuple (desc, code) describing a subprocess status |
|
214 | """return a 2-tuple (desc, code) describing a subprocess status | |
215 | (codes from kill are negative - not os.system/wait encoding)""" |
|
215 | (codes from kill are negative - not os.system/wait encoding)""" | |
216 | if code >= 0: |
|
216 | if code >= 0: | |
217 | return _("exited with status %d") % code, code |
|
217 | return _("exited with status %d") % code, code | |
218 | return _("killed by signal %d") % -code, -code |
|
218 | return _("killed by signal %d") % -code, -code | |
219 |
|
219 | |||
220 | def isowner(st): |
|
220 | def isowner(st): | |
221 | """Return True if the stat object st is from the current user.""" |
|
221 | """Return True if the stat object st is from the current user.""" | |
222 | return st.st_uid == os.getuid() |
|
222 | return st.st_uid == os.getuid() | |
223 |
|
223 | |||
224 | def find_exe(command): |
|
224 | def find_exe(command): | |
225 | '''Find executable for command searching like which does. |
|
225 | '''Find executable for command searching like which does. | |
226 | If command is a basename then PATH is searched for command. |
|
226 | If command is a basename then PATH is searched for command. | |
227 | PATH isn't searched if command is an absolute or relative path. |
|
227 | PATH isn't searched if command is an absolute or relative path. | |
228 | If command isn't found None is returned.''' |
|
228 | If command isn't found None is returned.''' | |
229 | if sys.platform == 'OpenVMS': |
|
229 | if sys.platform == 'OpenVMS': | |
230 | return command |
|
230 | return command | |
231 |
|
231 | |||
232 | def findexisting(executable): |
|
232 | def findexisting(executable): | |
233 | 'Will return executable if existing file' |
|
233 | 'Will return executable if existing file' | |
234 | if os.path.exists(executable): |
|
234 | if os.path.exists(executable): | |
235 | return executable |
|
235 | return executable | |
236 | return None |
|
236 | return None | |
237 |
|
237 | |||
238 | if os.sep in command: |
|
238 | if os.sep in command: | |
239 | return findexisting(command) |
|
239 | return findexisting(command) | |
240 |
|
240 | |||
241 | for path in os.environ.get('PATH', '').split(os.pathsep): |
|
241 | for path in os.environ.get('PATH', '').split(os.pathsep): | |
242 | executable = findexisting(os.path.join(path, command)) |
|
242 | executable = findexisting(os.path.join(path, command)) | |
243 | if executable is not None: |
|
243 | if executable is not None: | |
244 | return executable |
|
244 | return executable | |
245 | return None |
|
245 | return None | |
246 |
|
246 | |||
247 | def set_signal_handler(): |
|
247 | def set_signal_handler(): | |
248 | pass |
|
248 | pass | |
249 |
|
249 | |||
250 | def statfiles(files): |
|
250 | def statfiles(files): | |
251 | 'Stat each file in files and yield stat or None if file does not exist.' |
|
251 | 'Stat each file in files and yield stat or None if file does not exist.' | |
252 | lstat = os.lstat |
|
252 | lstat = os.lstat | |
253 | for nf in files: |
|
253 | for nf in files: | |
254 | try: |
|
254 | try: | |
255 | st = lstat(nf) |
|
255 | st = lstat(nf) | |
256 | except OSError, err: |
|
256 | except OSError, err: | |
257 | if err.errno not in (errno.ENOENT, errno.ENOTDIR): |
|
257 | if err.errno not in (errno.ENOENT, errno.ENOTDIR): | |
258 | raise |
|
258 | raise | |
259 | st = None |
|
259 | st = None | |
260 | yield st |
|
260 | yield st | |
261 |
|
261 | |||
262 | def getuser(): |
|
262 | def getuser(): | |
263 | '''return name of current user''' |
|
263 | '''return name of current user''' | |
264 | return getpass.getuser() |
|
264 | return getpass.getuser() | |
265 |
|
265 | |||
266 | def expand_glob(pats): |
|
266 | def expand_glob(pats): | |
267 | '''On Windows, expand the implicit globs in a list of patterns''' |
|
267 | '''On Windows, expand the implicit globs in a list of patterns''' | |
268 | return list(pats) |
|
268 | return list(pats) | |
269 |
|
269 | |||
270 | def username(uid=None): |
|
270 | def username(uid=None): | |
271 | """Return the name of the user with the given uid. |
|
271 | """Return the name of the user with the given uid. | |
272 |
|
272 | |||
273 | If uid is None, return the name of the current user.""" |
|
273 | If uid is None, return the name of the current user.""" | |
274 |
|
274 | |||
275 | if uid is None: |
|
275 | if uid is None: | |
276 | uid = os.getuid() |
|
276 | uid = os.getuid() | |
277 | try: |
|
277 | try: | |
278 | return pwd.getpwuid(uid)[0] |
|
278 | return pwd.getpwuid(uid)[0] | |
279 | except KeyError: |
|
279 | except KeyError: | |
280 | return str(uid) |
|
280 | return str(uid) | |
281 |
|
281 | |||
282 | def groupname(gid=None): |
|
282 | def groupname(gid=None): | |
283 | """Return the name of the group with the given gid. |
|
283 | """Return the name of the group with the given gid. | |
284 |
|
284 | |||
285 | If gid is None, return the name of the current group.""" |
|
285 | If gid is None, return the name of the current group.""" | |
286 |
|
286 | |||
287 | if gid is None: |
|
287 | if gid is None: | |
288 | gid = os.getgid() |
|
288 | gid = os.getgid() | |
289 | try: |
|
289 | try: | |
290 | return grp.getgrgid(gid)[0] |
|
290 | return grp.getgrgid(gid)[0] | |
291 | except KeyError: |
|
291 | except KeyError: | |
292 | return str(gid) |
|
292 | return str(gid) | |
293 |
|
293 | |||
294 | def groupmembers(name): |
|
294 | def groupmembers(name): | |
295 | """Return the list of members of the group with the given |
|
295 | """Return the list of members of the group with the given | |
296 | name, KeyError if the group does not exist. |
|
296 | name, KeyError if the group does not exist. | |
297 | """ |
|
297 | """ | |
298 | return list(grp.getgrnam(name).gr_mem) |
|
298 | return list(grp.getgrnam(name).gr_mem) | |
299 |
|
299 | |||
300 | def spawndetached(args): |
|
300 | def spawndetached(args): | |
301 | return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), |
|
301 | return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), | |
302 | args[0], args) |
|
302 | args[0], args) | |
303 |
|
303 | |||
304 | def gethgcmd(): |
|
304 | def gethgcmd(): | |
305 | return sys.argv[:1] |
|
305 | return sys.argv[:1] | |
306 |
|
306 | |||
307 | def termwidth(): |
|
307 | def termwidth(): | |
308 | try: |
|
308 | try: | |
309 | import termios, array, fcntl |
|
309 | import termios, array, fcntl | |
310 | for dev in (sys.stderr, sys.stdout, sys.stdin): |
|
310 | for dev in (sys.stderr, sys.stdout, sys.stdin): | |
311 | try: |
|
311 | try: | |
312 | try: |
|
312 | try: | |
313 | fd = dev.fileno() |
|
313 | fd = dev.fileno() | |
314 | except AttributeError: |
|
314 | except AttributeError: | |
315 | continue |
|
315 | continue | |
316 | if not os.isatty(fd): |
|
316 | if not os.isatty(fd): | |
317 | continue |
|
317 | continue | |
318 | arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8) |
|
318 | arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8) | |
319 |
|
|
319 | width = array.array('h', arri)[1] | |
|
320 | if width > 0: | |||
|
321 | return width | |||
320 | except ValueError: |
|
322 | except ValueError: | |
321 | pass |
|
323 | pass | |
322 | except IOError, e: |
|
324 | except IOError, e: | |
323 | if e[0] == errno.EINVAL: |
|
325 | if e[0] == errno.EINVAL: | |
324 | pass |
|
326 | pass | |
325 | else: |
|
327 | else: | |
326 | raise |
|
328 | raise | |
327 | except ImportError: |
|
329 | except ImportError: | |
328 | pass |
|
330 | pass | |
329 | return 80 |
|
331 | return 80 |
General Comments 0
You need to be logged in to leave comments.
Login now