author | Augie Fackler <augie@google.com> |
Fri, 05 Aug 2016 16:25:15 -0400 | |
branch | stable |
changeset 29704 | b8f9cdca8807 |
parent 29530 | 3239e2fdd2e2 |
child 30309 | 4b1af1c867fa |
child 30654 | 5f33116cd787 |
permissions | -rw-r--r-- |
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# posix.py - Posix utility function implementations for Mercurial |
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# |
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# Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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from __future__ import absolute_import |
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import errno |
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import fcntl |
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import getpass |
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import grp |
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import os |
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import pwd |
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import re |
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import select |
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import stat |
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import sys |
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import tempfile |
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import unicodedata |
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from .i18n import _ |
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from . import ( |
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encoding, |
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) |
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posixfile = open |
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normpath = os.path.normpath |
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samestat = os.path.samestat |
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try: |
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oslink = os.link |
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except AttributeError: |
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# Some platforms build Python without os.link on systems that are |
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# vaguely unix-like but don't have hardlink support. For those |
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# poor souls, just say we tried and that it failed so we fall back |
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# to copies. |
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def oslink(src, dst): |
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raise OSError(errno.EINVAL, |
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'hardlinks not supported: %s to %s' % (src, dst)) |
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unlink = os.unlink |
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rename = os.rename |
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removedirs = os.removedirs |
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expandglobs = False |
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umask = os.umask(0) |
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os.umask(umask) |
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def split(p): |
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'''Same as posixpath.split, but faster |
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>>> import posixpath |
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>>> for f in ['/absolute/path/to/file', |
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... 'relative/path/to/file', |
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... 'file_alone', |
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... 'path/to/directory/', |
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... '/multiple/path//separators', |
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... '/file_at_root', |
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... '///multiple_leading_separators_at_root', |
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... '']: |
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... assert split(f) == posixpath.split(f), f |
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''' |
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ht = p.rsplit('/', 1) |
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if len(ht) == 1: |
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return '', p |
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nh = ht[0].rstrip('/') |
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if nh: |
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return nh, ht[1] |
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return ht[0] + '/', ht[1] |
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def openhardlinks(): |
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'''return true if it is safe to hold open file handles to hardlinks''' |
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return True |
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def nlinks(name): |
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'''return number of hardlinks for the given file''' |
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return os.lstat(name).st_nlink |
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def parsepatchoutput(output_line): |
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"""parses the output produced by patch and returns the filename""" |
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pf = output_line[14:] |
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if os.sys.platform == 'OpenVMS': |
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if pf[0] == '`': |
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pf = pf[1:-1] # Remove the quotes |
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else: |
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if pf.startswith("'") and pf.endswith("'") and " " in pf: |
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pf = pf[1:-1] # Remove the quotes |
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return pf |
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def sshargs(sshcmd, host, user, port): |
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'''Build argument list for ssh''' |
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args = user and ("%s@%s" % (user, host)) or host |
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return port and ("%s -p %s" % (args, port)) or args |
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def isexec(f): |
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"""check whether a file is executable""" |
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return (os.lstat(f).st_mode & 0o100 != 0) |
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def setflags(f, l, x): |
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s = os.lstat(f).st_mode |
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if l: |
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if not stat.S_ISLNK(s): |
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# switch file to link |
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fp = open(f) |
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data = fp.read() |
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fp.close() |
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os.unlink(f) |
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try: |
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os.symlink(data, f) |
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except OSError: |
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# failed to make a link, rewrite file |
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|
112 |
fp = open(f, "w") |
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|
113 |
fp.write(data) |
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114 |
fp.close() |
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115 |
# no chmod needed at this point |
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|
116 |
return |
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|
117 |
if stat.S_ISLNK(s): |
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118 |
# switch link to file |
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119 |
data = os.readlink(f) |
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120 |
os.unlink(f) |
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121 |
fp = open(f, "w") |
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122 |
fp.write(data) |
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|
123 |
fp.close() |
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|
124 |
s = 0o666 & ~umask # avoid restatting for chmod |
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125 |
|
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126 |
sx = s & 0o100 |
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127 |
if x and not sx: |
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128 |
# Turn on +x for every +r bit when making a file executable |
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129 |
# and obey umask. |
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130 |
os.chmod(f, s | (s & 0o444) >> 2 & ~umask) |
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131 |
elif not x and sx: |
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132 |
# Turn off all +x bits |
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133 |
os.chmod(f, s & 0o666) |
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134 |
|
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135 |
def copymode(src, dst, mode=None): |
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136 |
'''Copy the file mode from the file at path src to dst. |
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137 |
If src doesn't exist, we're using mode instead. If mode is None, we're |
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|
138 |
using umask.''' |
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139 |
try: |
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140 |
st_mode = os.lstat(src).st_mode & 0o777 |
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|
141 |
except OSError as inst: |
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|
142 |
if inst.errno != errno.ENOENT: |
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|
143 |
raise |
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|
144 |
st_mode = mode |
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|
145 |
if st_mode is None: |
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|
146 |
st_mode = ~umask |
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|
147 |
st_mode &= 0o666 |
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|
148 |
os.chmod(dst, st_mode) |
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|
149 |
|
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|
150 |
def checkexec(path): |
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|
151 |
""" |
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|
152 |
Check whether the given path is on a filesystem with UNIX-like exec flags |
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|
153 |
|
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|
154 |
Requires a directory (like /foo/.hg) |
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|
155 |
""" |
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|
156 |
|
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|
157 |
# VFAT on some Linux versions can flip mode but it doesn't persist |
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|
158 |
# a FS remount. Frequently we can detect it if files are created |
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|
159 |
# with exec bit on. |
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|
160 |
|
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|
161 |
try: |
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|
162 |
EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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|
163 |
fh, fn = tempfile.mkstemp(dir=path, prefix='hg-checkexec-') |
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changeset
|
164 |
try: |
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|
165 |
os.close(fh) |
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|
166 |
m = os.stat(fn).st_mode & 0o777 |
13879
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|
167 |
new_file_has_exec = m & EXECFLAGS |
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parents:
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|
168 |
os.chmod(fn, m ^ EXECFLAGS) |
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|
169 |
exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0o777) == m) |
13879
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|
170 |
finally: |
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|
171 |
os.unlink(fn) |
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changeset
|
172 |
except (IOError, OSError): |
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|
173 |
# we don't care, the user probably won't be able to commit anyway |
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|
174 |
return False |
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changeset
|
175 |
return not (new_file_has_exec or exec_flags_cannot_flip) |
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diff
changeset
|
176 |
|
13890
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util: move checklink() to posix.py and return False on Windows
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parents:
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diff
changeset
|
177 |
def checklink(path): |
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|
178 |
"""check whether the given path is on a symlink-capable filesystem""" |
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changeset
|
179 |
# mktemp is not racy because symlink creation will fail if the |
31eb145b50b6
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|
180 |
# file already exists |
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changeset
|
181 |
while True: |
c750ed59892a
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parents:
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diff
changeset
|
182 |
name = tempfile.mktemp(dir=path, prefix='hg-checklink-') |
22946
77c121da6143
checklink: always close the NamedTemporaryFile
Augie Fackler <raf@durin42.com>
parents:
22781
diff
changeset
|
183 |
try: |
26883
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parents:
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diff
changeset
|
184 |
fd = tempfile.NamedTemporaryFile(dir=path, prefix='hg-checklink-') |
c750ed59892a
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changeset
|
185 |
try: |
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|
186 |
os.symlink(os.path.basename(fd.name), name) |
c750ed59892a
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|
187 |
os.unlink(name) |
c750ed59892a
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diff
changeset
|
188 |
return True |
c750ed59892a
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parents:
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diff
changeset
|
189 |
except OSError as inst: |
c750ed59892a
posix: retry on symlink race in checklink
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parents:
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changeset
|
190 |
# link creation might race, try again |
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changeset
|
191 |
if inst[0] == errno.EEXIST: |
c750ed59892a
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parents:
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changeset
|
192 |
continue |
26889
1aa5083cbebb
posix: fix test-permissions regression
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changeset
|
193 |
raise |
26883
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changeset
|
194 |
finally: |
c750ed59892a
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changeset
|
195 |
fd.close() |
c750ed59892a
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changeset
|
196 |
except AttributeError: |
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parents:
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changeset
|
197 |
return False |
26889
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changeset
|
198 |
except OSError as inst: |
1aa5083cbebb
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changeset
|
199 |
# sshfs might report failure while successfully creating the link |
1aa5083cbebb
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parents:
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changeset
|
200 |
if inst[0] == errno.EIO and os.path.exists(name): |
1aa5083cbebb
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parents:
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changeset
|
201 |
os.unlink(name) |
1aa5083cbebb
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|
202 |
return False |
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31eb145b50b6
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changeset
|
203 |
|
13916
98ee3dd5bab4
path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
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|
204 |
def checkosfilename(path): |
98ee3dd5bab4
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|
205 |
'''Check that the base-relative path is a valid filename on this platform. |
98ee3dd5bab4
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|
206 |
Returns None if the path is ok, or a UI string describing the problem.''' |
98ee3dd5bab4
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|
207 |
pass # on posix platforms, every path is ok |
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changeset
|
208 |
|
14233
659f34b833b9
rename util.set_binary to setbinary
Adrian Buehlmann <adrian@cadifra.com>
parents:
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changeset
|
209 |
def setbinary(fd): |
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|
210 |
pass |
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changeset
|
211 |
|
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diff
changeset
|
212 |
def pconvert(path): |
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parents:
diff
changeset
|
213 |
return path |
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
214 |
|
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parents:
diff
changeset
|
215 |
def localpath(path): |
e710f0f592b2
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
216 |
return path |
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Matt Mackall <mpm@selenic.com>
parents:
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changeset
|
217 |
|
10218
750b7a4f01f6
Add support for relinking on Windows.
Siddharth Agarwal <sid.bugzilla@gmail.com>
parents:
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changeset
|
218 |
def samefile(fpath1, fpath2): |
750b7a4f01f6
Add support for relinking on Windows.
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|
219 |
"""Returns whether path1 and path2 refer to the same file. This is only |
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guaranteed to work for files, not directories.""" |
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return os.path.samefile(fpath1, fpath2) |
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|
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def samedevice(fpath1, fpath2): |
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"""Returns whether fpath1 and fpath2 are on the same device. This is only |
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guaranteed to work for files, not directories.""" |
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st1 = os.lstat(fpath1) |
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st2 = os.lstat(fpath2) |
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return st1.st_dev == st2.st_dev |
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229 |
|
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# os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
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def normcase(path): |
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return path.lower() |
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|
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# what normcase does to ASCII strings |
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normcasespec = encoding.normcasespecs.lower |
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# fallback normcase function for non-ASCII strings |
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normcasefallback = normcase |
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|
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if sys.platform == 'darwin': |
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|
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def normcase(path): |
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''' |
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Normalize a filename for OS X-compatible comparison: |
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- escape-encode invalid characters |
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- decompose to NFD |
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- lowercase |
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- omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] |
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248 |
|
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>>> normcase('UPPER') |
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'upper' |
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>>> normcase('Caf\xc3\xa9') |
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'cafe\\xcc\\x81' |
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>>> normcase('\xc3\x89') |
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'e\\xcc\\x81' |
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>>> normcase('\xb8\xca\xc3\xca\xbe\xc8.JPG') # issue3918 |
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'%b8%ca%c3\\xca\\xbe%c8.jpg' |
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257 |
''' |
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258 |
|
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259 |
try: |
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return encoding.asciilower(path) # exception for non-ASCII |
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261 |
except UnicodeDecodeError: |
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return normcasefallback(path) |
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263 |
|
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normcasespec = encoding.normcasespecs.lower |
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265 |
|
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266 |
def normcasefallback(path): |
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267 |
try: |
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u = path.decode('utf-8') |
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269 |
except UnicodeDecodeError: |
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# OS X percent-encodes any bytes that aren't valid utf-8 |
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271 |
s = '' |
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272 |
pos = 0 |
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l = len(path) |
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274 |
while pos < l: |
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try: |
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c = encoding.getutf8char(path, pos) |
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277 |
pos += len(c) |
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278 |
except ValueError: |
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279 |
c = '%%%02X' % ord(path[pos]) |
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280 |
pos += 1 |
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|
281 |
s += c |
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|
282 |
|
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283 |
u = s.decode('utf-8') |
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|
284 |
|
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285 |
# Decompose then lowercase (HFS+ technote specifies lower) |
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|
286 |
enc = unicodedata.normalize('NFD', u).lower().encode('utf-8') |
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287 |
# drop HFS+ ignored characters |
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|
288 |
return encoding.hfsignoreclean(enc) |
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|
289 |
|
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|
290 |
if sys.platform == 'cygwin': |
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291 |
# workaround for cygwin, in which mount point part of path is |
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292 |
# treated as case sensitive, even though underlying NTFS is case |
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293 |
# insensitive. |
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294 |
|
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295 |
# default mount points |
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|
296 |
cygwinmountpoints = sorted([ |
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297 |
"/usr/bin", |
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298 |
"/usr/lib", |
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299 |
"/cygdrive", |
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300 |
], reverse=True) |
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|
301 |
|
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302 |
# use upper-ing as normcase as same as NTFS workaround |
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303 |
def normcase(path): |
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304 |
pathlen = len(path) |
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|
305 |
if (pathlen == 0) or (path[0] != os.sep): |
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|
306 |
# treat as relative |
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|
307 |
return encoding.upper(path) |
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|
308 |
|
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|
309 |
# to preserve case of mountpoint part |
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|
310 |
for mp in cygwinmountpoints: |
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|
311 |
if not path.startswith(mp): |
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|
312 |
continue |
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|
313 |
|
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|
314 |
mplen = len(mp) |
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|
315 |
if mplen == pathlen: # mount point itself |
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316 |
return mp |
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|
317 |
if path[mplen] == os.sep: |
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|
318 |
return mp + encoding.upper(path[mplen:]) |
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319 |
|
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|
320 |
return encoding.upper(path) |
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|
321 |
|
24596
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|
322 |
normcasespec = encoding.normcasespecs.other |
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|
323 |
normcasefallback = normcase |
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|
324 |
|
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posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
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|
325 |
# Cygwin translates native ACLs to POSIX permissions, |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
326 |
# but these translations are not supported by native |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
327 |
# tools, so the exec bit tends to be set erroneously. |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
328 |
# Therefore, disable executable bit access on Cygwin. |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
329 |
def checkexec(path): |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
330 |
return False |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
331 |
|
16241
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
332 |
# Similarly, Cygwin's symlink emulation is likely to create |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
333 |
# problems when Mercurial is used from both Cygwin and native |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
334 |
# Windows, with other native tools, or on shared volumes |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
335 |
def checklink(path): |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
336 |
return False |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
337 |
|
23683
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
338 |
_needsshellquote = None |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
339 |
def shellquote(s): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
340 |
if os.sys.platform == 'OpenVMS': |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
341 |
return '"%s"' % s |
23683
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
342 |
global _needsshellquote |
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
343 |
if _needsshellquote is None: |
26248
99b6afff09ae
posix: shellquote do not require quoting for "+" (issue4818)
timeless@mozdev.org
parents:
25967
diff
changeset
|
344 |
_needsshellquote = re.compile(r'[^a-zA-Z0-9._/+-]').search |
24108
d65ecb814fc0
shellquote: fix missing quotes for empty string
Yuya Nishihara <yuya@tcha.org>
parents:
23683
diff
changeset
|
345 |
if s and not _needsshellquote(s): |
23683
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
346 |
# "s" shouldn't have to be quoted |
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
347 |
return s |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
348 |
else: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
349 |
return "'%s'" % s.replace("'", "'\\''") |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
350 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
351 |
def quotecommand(cmd): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
352 |
return cmd |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
353 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
354 |
def popen(command, mode='r'): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
355 |
return os.popen(command, mode) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
356 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
357 |
def testpid(pid): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
358 |
'''return False if pid dead, True if running or not sure''' |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
359 |
if os.sys.platform == 'OpenVMS': |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
360 |
return True |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
361 |
try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
362 |
os.kill(pid, 0) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
363 |
return True |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
364 |
except OSError as inst: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
365 |
return inst.errno != errno.ESRCH |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
366 |
|
14234
600e64004eb5
rename explain_exit to explainexit
Adrian Buehlmann <adrian@cadifra.com>
parents:
14233
diff
changeset
|
367 |
def explainexit(code): |
9517
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
368 |
"""return a 2-tuple (desc, code) describing a subprocess status |
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
369 |
(codes from kill are negative - not os.system/wait encoding)""" |
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
370 |
if code >= 0: |
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
371 |
return _("exited with status %d") % code, code |
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
372 |
return _("killed by signal %d") % -code, -code |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
373 |
|
8657
3fa92c618624
posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents:
8614
diff
changeset
|
374 |
def isowner(st): |
3fa92c618624
posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents:
8614
diff
changeset
|
375 |
"""Return True if the stat object st is from the current user.""" |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
376 |
return st.st_uid == os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
377 |
|
14271
4030630fb59c
rename util.find_exe to findexe
Adrian Buehlmann <adrian@cadifra.com>
parents:
14237
diff
changeset
|
378 |
def findexe(command): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
379 |
'''Find executable for command searching like which does. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
380 |
If command is a basename then PATH is searched for command. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
381 |
PATH isn't searched if command is an absolute or relative path. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
382 |
If command isn't found None is returned.''' |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
383 |
if sys.platform == 'OpenVMS': |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
384 |
return command |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
385 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
386 |
def findexisting(executable): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
387 |
'Will return executable if existing file' |
15499
58f96703a9ab
posix: fix findexe() to check for file type and access
Marc-Antoine Ruel <maruel@google.com>
parents:
15488
diff
changeset
|
388 |
if os.path.isfile(executable) and os.access(executable, os.X_OK): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
389 |
return executable |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
390 |
return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
391 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
392 |
if os.sep in command: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
393 |
return findexisting(command) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
394 |
|
16383
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16241
diff
changeset
|
395 |
if sys.platform == 'plan9': |
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16241
diff
changeset
|
396 |
return findexisting(os.path.join('/bin', command)) |
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16241
diff
changeset
|
397 |
|
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
398 |
for path in os.environ.get('PATH', '').split(os.pathsep): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
399 |
executable = findexisting(os.path.join(path, command)) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
400 |
if executable is not None: |
15499
58f96703a9ab
posix: fix findexe() to check for file type and access
Marc-Antoine Ruel <maruel@google.com>
parents:
15488
diff
changeset
|
401 |
return executable |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
402 |
return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
403 |
|
14237
4d684d8210a1
rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents:
14235
diff
changeset
|
404 |
def setsignalhandler(): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
405 |
pass |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
406 |
|
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
407 |
_wantedkinds = set([stat.S_IFREG, stat.S_IFLNK]) |
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
408 |
|
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
409 |
def statfiles(files): |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
410 |
'''Stat each file in files. Yield each stat, or None if a file does not |
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
411 |
exist or has a type we don't care about.''' |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
412 |
lstat = os.lstat |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
413 |
getkind = stat.S_IFMT |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
414 |
for nf in files: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
415 |
try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
416 |
st = lstat(nf) |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
417 |
if getkind(st.st_mode) not in _wantedkinds: |
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
418 |
st = None |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
419 |
except OSError as err: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
420 |
if err.errno not in (errno.ENOENT, errno.ENOTDIR): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
421 |
raise |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
422 |
st = None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
423 |
yield st |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
424 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
425 |
def getuser(): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
426 |
'''return name of current user''' |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
427 |
return getpass.getuser() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
428 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
429 |
def username(uid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
430 |
"""Return the name of the user with the given uid. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
431 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
432 |
If uid is None, return the name of the current user.""" |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
433 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
434 |
if uid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
435 |
uid = os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
436 |
try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
437 |
return pwd.getpwuid(uid)[0] |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
438 |
except KeyError: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
439 |
return str(uid) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
440 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
441 |
def groupname(gid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
442 |
"""Return the name of the group with the given gid. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
443 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
444 |
If gid is None, return the name of the current group.""" |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
445 |
|
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
446 |
if gid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
447 |
gid = os.getgid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
448 |
try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
449 |
return grp.getgrgid(gid)[0] |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
450 |
except KeyError: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
451 |
return str(gid) |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
452 |
|
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
453 |
def groupmembers(name): |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
454 |
"""Return the list of members of the group with the given |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
455 |
name, KeyError if the group does not exist. |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
456 |
""" |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
457 |
return list(grp.getgrnam(name).gr_mem) |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
458 |
|
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
459 |
def spawndetached(args): |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
460 |
return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
461 |
args[0], args) |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
462 |
|
10239
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
463 |
def gethgcmd(): |
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
464 |
return sys.argv[:1] |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
465 |
|
12689
c52c629ce19e
termwidth: move to ui.ui from util
Augie Fackler <durin42@gmail.com>
parents:
11138
diff
changeset
|
466 |
def termwidth(): |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
467 |
try: |
25967
224a33452ed4
posix: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
468 |
import array |
224a33452ed4
posix: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
469 |
import termios |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
470 |
for dev in (sys.stderr, sys.stdout, sys.stdin): |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
471 |
try: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
472 |
try: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
473 |
fd = dev.fileno() |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
474 |
except AttributeError: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
475 |
continue |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
476 |
if not os.isatty(fd): |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
477 |
continue |
16726
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
478 |
try: |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
479 |
arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8) |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
480 |
width = array.array('h', arri)[1] |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
481 |
if width > 0: |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
482 |
return width |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
483 |
except AttributeError: |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
484 |
pass |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
485 |
except ValueError: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
486 |
pass |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
487 |
except IOError as e: |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
488 |
if e[0] == errno.EINVAL: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
489 |
pass |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
490 |
else: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
491 |
raise |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
492 |
except ImportError: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
493 |
pass |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
494 |
return 80 |
14908
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
495 |
|
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
496 |
def makedir(path, notindexed): |
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
497 |
os.mkdir(path) |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
498 |
|
18143
242d2f4ec01c
util: fold ENOENT check into unlinkpath, controlled by new ignoremissing flag
Mads Kiilerich <madski@unity3d.com>
parents:
18097
diff
changeset
|
499 |
def unlinkpath(f, ignoremissing=False): |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
500 |
"""unlink and remove the directory if it is empty""" |
18143
242d2f4ec01c
util: fold ENOENT check into unlinkpath, controlled by new ignoremissing flag
Mads Kiilerich <madski@unity3d.com>
parents:
18097
diff
changeset
|
501 |
try: |
242d2f4ec01c
util: fold ENOENT check into unlinkpath, controlled by new ignoremissing flag
Mads Kiilerich <madski@unity3d.com>
parents:
18097
diff
changeset
|
502 |
os.unlink(f) |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
503 |
except OSError as e: |
18143
242d2f4ec01c
util: fold ENOENT check into unlinkpath, controlled by new ignoremissing flag
Mads Kiilerich <madski@unity3d.com>
parents:
18097
diff
changeset
|
504 |
if not (ignoremissing and e.errno == errno.ENOENT): |
242d2f4ec01c
util: fold ENOENT check into unlinkpath, controlled by new ignoremissing flag
Mads Kiilerich <madski@unity3d.com>
parents:
18097
diff
changeset
|
505 |
raise |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
506 |
# try removing directories that might now be empty |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
507 |
try: |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
508 |
os.removedirs(os.path.dirname(f)) |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
509 |
except OSError: |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
510 |
pass |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
511 |
|
14910
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
512 |
def lookupreg(key, name=None, scope=None): |
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
513 |
return None |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
514 |
|
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
515 |
def hidewindow(): |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
516 |
"""Hide current shell window. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
517 |
|
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
518 |
Used to hide the window opened when starting asynchronous |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
519 |
child process under Windows, unneeded on other systems. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
520 |
""" |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
521 |
pass |
14926
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
522 |
|
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
523 |
class cachestat(object): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
524 |
def __init__(self, path): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
525 |
self.stat = os.stat(path) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
526 |
|
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
527 |
def cacheable(self): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
528 |
return bool(self.stat.st_ino) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
529 |
|
15791
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
530 |
__hash__ = object.__hash__ |
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
531 |
|
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
532 |
def __eq__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
533 |
try: |
18442
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
534 |
# Only dev, ino, size, mtime and atime are likely to change. Out |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
535 |
# of these, we shouldn't compare atime but should compare the |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
536 |
# rest. However, one of the other fields changing indicates |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
537 |
# something fishy going on, so return False if anything but atime |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
538 |
# changes. |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
539 |
return (self.stat.st_mode == other.stat.st_mode and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
540 |
self.stat.st_ino == other.stat.st_ino and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
541 |
self.stat.st_dev == other.stat.st_dev and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
542 |
self.stat.st_nlink == other.stat.st_nlink and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
543 |
self.stat.st_uid == other.stat.st_uid and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
544 |
self.stat.st_gid == other.stat.st_gid and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
545 |
self.stat.st_size == other.stat.st_size and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
546 |
self.stat.st_mtime == other.stat.st_mtime and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
547 |
self.stat.st_ctime == other.stat.st_ctime) |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
548 |
except AttributeError: |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
549 |
return False |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
550 |
|
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
551 |
def __ne__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
552 |
return not self == other |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
553 |
|
14926
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
554 |
def executablepath(): |
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
555 |
return None # available on Windows only |
18097
ae54cff742e2
posix: move server side of unix domain sockets out of inotify
Bryan O'Sullivan <bryano@fb.com>
parents:
18017
diff
changeset
|
556 |
|
18868
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
557 |
def statislink(st): |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
558 |
'''check whether a stat result is a symlink''' |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
559 |
return st and stat.S_ISLNK(st.st_mode) |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
560 |
|
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
561 |
def statisexec(st): |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
562 |
'''check whether a stat result is an executable file''' |
25658
e93036747902
global: mass rewrite to use modern octal syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25420
diff
changeset
|
563 |
return st and (st.st_mode & 0o100 != 0) |
22245
234e4c24b980
platform: implement readpipe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20202
diff
changeset
|
564 |
|
25420
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
565 |
def poll(fds): |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
566 |
"""block until something happens on any file descriptor |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
567 |
|
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
568 |
This is a generic helper that will check for any activity |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
569 |
(read, write. exception) and return the list of touched files. |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
570 |
|
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
571 |
In unsupported cases, it will raise a NotImplementedError""" |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
572 |
try: |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
573 |
res = select.select(fds, fds, fds) |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
574 |
except ValueError: # out of range file descriptor |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
575 |
raise NotImplementedError() |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
576 |
return sorted(list(set(sum(res, [])))) |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
577 |
|
22245
234e4c24b980
platform: implement readpipe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20202
diff
changeset
|
578 |
def readpipe(pipe): |
234e4c24b980
platform: implement readpipe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20202
diff
changeset
|
579 |
"""Read all available data from a pipe.""" |
22246
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
580 |
# We can't fstat() a pipe because Linux will always report 0. |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
581 |
# So, we set the pipe to non-blocking mode and read everything |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
582 |
# that's available. |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
583 |
flags = fcntl.fcntl(pipe, fcntl.F_GETFL) |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
584 |
flags |= os.O_NONBLOCK |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
585 |
oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) |
22245
234e4c24b980
platform: implement readpipe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20202
diff
changeset
|
586 |
|
22246
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
587 |
try: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
588 |
chunks = [] |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
589 |
while True: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
590 |
try: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
591 |
s = pipe.read() |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
592 |
if not s: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
593 |
break |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
594 |
chunks.append(s) |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
595 |
except IOError: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
596 |
break |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
597 |
|
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
598 |
return ''.join(chunks) |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
599 |
finally: |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
600 |
fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) |
29530
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
601 |
|
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
602 |
def bindunixsocket(sock, path): |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
603 |
"""Bind the UNIX domain socket to the specified path""" |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
604 |
# use relative path instead of full path at bind() if possible, since |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
605 |
# AF_UNIX path has very small length limit (107 chars) on common |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
606 |
# platforms (see sys/un.h) |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
607 |
dirname, basename = os.path.split(path) |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
608 |
bakwdfd = None |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
609 |
if dirname: |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
610 |
bakwdfd = os.open('.', os.O_DIRECTORY) |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
611 |
os.chdir(dirname) |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
612 |
sock.bind(basename) |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
613 |
if bakwdfd: |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
614 |
os.fchdir(bakwdfd) |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
27380
diff
changeset
|
615 |
os.close(bakwdfd) |