1
# Bazaar-NG -- distributed version control
3
# Copyright (C) 2005 by Canonical Ltd
5
# This program is free software; you can redistribute it and/or modify
6
# it under the terms of the GNU General Public License as published by
7
# the Free Software Foundation; either version 2 of the License, or
8
# (at your option) any later version.
10
# This program is distributed in the hope that it will be useful,
11
# but WITHOUT ANY WARRANTY; without even the implied warranty of
12
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13
# GNU General Public License for more details.
15
# You should have received a copy of the GNU General Public License
16
# along with this program; if not, write to the Free Software
17
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19
import os, types, re, time, errno, sys
20
from stat import S_ISREG, S_ISDIR, S_ISLNK, ST_MODE, ST_SIZE
22
from bzrlib.errors import BzrError
23
from bzrlib.trace import mutter
26
def make_readonly(filename):
27
"""Make a filename read-only."""
28
# TODO: probably needs to be fixed for windows
29
mod = os.stat(filename).st_mode
31
os.chmod(filename, mod)
34
def make_writable(filename):
35
mod = os.stat(filename).st_mode
37
os.chmod(filename, mod)
44
"""Return a quoted filename filename
46
This previously used backslash quoting, but that works poorly on
48
# TODO: I'm not really sure this is the best format either.x
51
_QUOTE_RE = re.compile(r'([^a-zA-Z0-9.,:/_~-])')
53
if _QUOTE_RE.search(f):
60
mode = os.lstat(f)[ST_MODE]
68
raise BzrError("can't handle file kind with mode %o of %r" % (mode, f))
71
def kind_marker(kind):
74
elif kind == 'directory':
76
elif kind == 'symlink':
79
raise BzrError('invalid file kind %r' % kind)
84
"""Copy a file to a backup.
86
Backups are named in GNU-style, with a ~ suffix.
88
If the file is already a backup, it's not copied.
101
outf = file(bfn, 'wb')
107
def rename(path_from, path_to):
108
"""Basically the same as os.rename() just special for win32"""
109
if sys.platform == 'win32':
113
if e.errno != e.ENOENT:
115
os.rename(path_from, path_to)
122
"""True if f is an accessible directory."""
124
return S_ISDIR(os.lstat(f)[ST_MODE])
131
"""True if f is a regular file."""
133
return S_ISREG(os.lstat(f)[ST_MODE])
138
def is_inside(dir, fname):
139
"""True if fname is inside dir.
141
The parameters should typically be passed to os.path.normpath first, so
142
that . and .. and repeated slashes are eliminated, and the separators
143
are canonical for the platform.
145
The empty string as a dir name is taken as top-of-tree and matches
148
>>> is_inside('src', 'src/foo.c')
150
>>> is_inside('src', 'srccontrol')
152
>>> is_inside('src', 'src/a/a/a/foo.c')
154
>>> is_inside('foo.c', 'foo.c')
156
>>> is_inside('foo.c', '')
158
>>> is_inside('', 'foo.c')
161
# XXX: Most callers of this can actually do something smarter by
162
# looking at the inventory
169
if dir[-1] != os.sep:
172
return fname.startswith(dir)
175
def is_inside_any(dir_list, fname):
176
"""True if fname is inside any of given dirs."""
177
for dirname in dir_list:
178
if is_inside(dirname, fname):
184
def pumpfile(fromfile, tofile):
185
"""Copy contents of one file to another."""
186
tofile.write(fromfile.read())
190
"""Return a new UUID"""
192
return file('/proc/sys/kernel/random/uuid').readline().rstrip('\n')
194
return chomp(os.popen('uuidgen').readline())
199
if hasattr(f, 'tell'):
219
def fingerprint_file(f):
225
return {'size': size,
226
'sha1': s.hexdigest()}
230
"""Return per-user configuration directory.
232
By default this is ~/.bzr.conf/
234
TODO: Global option --config-dir to override this.
236
return os.path.expanduser("~/.bzr.conf")
240
"""Calculate automatic user identification.
242
Returns (realname, email).
244
Only used when none is set in the environment or the id file.
246
This previously used the FQDN as the default domain, but that can
247
be very slow on machines where DNS is broken. So now we simply
252
# XXX: Any good way to get real user name on win32?
257
w = pwd.getpwuid(uid)
258
gecos = w.pw_gecos.decode(bzrlib.user_encoding)
259
username = w.pw_name.decode(bzrlib.user_encoding)
260
comma = gecos.find(',')
264
realname = gecos[:comma]
270
realname = username = getpass.getuser().decode(bzrlib.user_encoding)
272
return realname, (username + '@' + socket.gethostname())
275
def _get_user_id(branch):
276
"""Return the full user id from a file or environment variable.
278
e.g. "John Hacker <jhacker@foo.org>"
281
A branch to use for a per-branch configuration, or None.
283
The following are searched in order:
286
2. .bzr/email for this branch.
290
v = os.environ.get('BZREMAIL')
292
return v.decode(bzrlib.user_encoding)
296
return (branch.controlfile("email", "r")
298
.decode(bzrlib.user_encoding)
301
if e.errno != errno.ENOENT:
307
return (open(os.path.join(config_dir(), "email"))
309
.decode(bzrlib.user_encoding)
312
if e.errno != errno.ENOENT:
315
v = os.environ.get('EMAIL')
317
return v.decode(bzrlib.user_encoding)
322
def username(branch):
323
"""Return email-style username.
325
Something similar to 'Martin Pool <mbp@sourcefrog.net>'
327
TODO: Check it's reasonably well-formed.
329
v = _get_user_id(branch)
333
name, email = _auto_user_id()
335
return '%s <%s>' % (name, email)
340
def user_email(branch):
341
"""Return just the email component of a username."""
342
e = _get_user_id(branch)
344
m = re.search(r'[\w+.-]+@[\w+.-]+', e)
346
raise BzrError("%r doesn't seem to contain a reasonable email address" % e)
349
return _auto_user_id()[1]
353
def compare_files(a, b):
354
"""Returns true if equal in contents"""
366
def local_time_offset(t=None):
367
"""Return offset of local zone from GMT, either at present or at time t."""
368
# python2.3 localtime() can't take None
372
if time.localtime(t).tm_isdst and time.daylight:
375
return -time.timezone
378
def format_date(t, offset=0, timezone='original'):
379
## TODO: Perhaps a global option to use either universal or local time?
380
## Or perhaps just let people set $TZ?
381
assert isinstance(t, float)
383
if timezone == 'utc':
386
elif timezone == 'original':
389
tt = time.gmtime(t + offset)
390
elif timezone == 'local':
391
tt = time.localtime(t)
392
offset = local_time_offset(t)
394
raise BzrError("unsupported timezone format %r" % timezone,
395
['options are "utc", "original", "local"'])
397
return (time.strftime("%a %Y-%m-%d %H:%M:%S", tt)
398
+ ' %+03d%02d' % (offset / 3600, (offset / 60) % 60))
401
def compact_date(when):
402
return time.strftime('%Y%m%d%H%M%S', time.gmtime(when))
407
"""Return size of given open file."""
408
return os.fstat(f.fileno())[ST_SIZE]
411
if hasattr(os, 'urandom'): # python 2.4 and later
412
rand_bytes = os.urandom
413
elif sys.platform == 'linux2':
414
rand_bytes = file('/dev/urandom', 'rb').read
416
# not well seeded, but better than nothing
421
s += chr(random.randint(0, 255))
426
## TODO: We could later have path objects that remember their list
427
## decomposition (might be too tricksy though.)
430
"""Turn string into list of parts.
436
>>> splitpath('a/./b')
438
>>> splitpath('a/.b')
440
>>> splitpath('a/../b')
441
Traceback (most recent call last):
443
BzrError: sorry, '..' not allowed in path
445
assert isinstance(p, types.StringTypes)
447
# split on either delimiter because people might use either on
449
ps = re.split(r'[\\/]', p)
454
raise BzrError("sorry, %r not allowed in path" % f)
455
elif (f == '.') or (f == ''):
462
assert isinstance(p, list)
464
if (f == '..') or (f == None) or (f == ''):
465
raise BzrError("sorry, %r not allowed in path" % f)
466
return os.path.join(*p)
469
def appendpath(p1, p2):
473
return os.path.join(p1, p2)
476
def extern_command(cmd, ignore_errors = False):
477
mutter('external command: %s' % `cmd`)
479
if not ignore_errors:
480
raise BzrError('command failed')
483
def _read_config_value(name):
484
"""Read a config value from the file ~/.bzr.conf/<name>
485
Return None if the file does not exist"""
487
f = file(os.path.join(config_dir(), name), "r")
488
return f.read().decode(bzrlib.user_encoding).rstrip("\r\n")
490
if e.errno == errno.ENOENT:
496
"""Return a sequence of possible editor binaries for the current platform"""
497
e = _read_config_value("editor")
501
if os.name == "windows":
503
elif os.name == "posix":
505
yield os.environ["EDITOR"]
510
def _run_editor(filename):
511
"""Try to execute an editor to edit the commit message. Returns True on success,
513
for e in _get_editor():
514
x = os.spawnvp(os.P_WAIT, e, (e, filename))
521
raise BzrError("Could not start any editor. Please specify $EDITOR or use ~/.bzr.conf/editor")
525
def get_text_message(infotext, ignoreline = "default"):
528
if ignoreline == "default":
529
ignoreline = "-- This line and the following will be ignored --"
532
tmp_fileno, msgfilename = tempfile.mkstemp()
533
msgfile = os.close(tmp_fileno)
534
if infotext is not None and infotext != "":
536
msgfile = file(msgfilename, "w")
537
msgfile.write("\n\n%s\n\n%s" % (ignoreline, infotext))
542
if not _run_editor(msgfilename):
547
lastline, nlines = 0, 0
548
for line in file(msgfilename, "r"):
549
stripped_line = line.strip()
550
# strip empty line before the log message starts
552
if stripped_line != "":
556
# check for the ignore line only if there
557
# is additional information at the end
558
if hasinfo and stripped_line == ignoreline:
561
# keep track of the last line that had some content
562
if stripped_line != "":
568
# delete empty lines at the end
570
# add a newline at the end, if needed
571
if not msg[-1].endswith("\n"):
572
return "%s%s" % ("".join(msg), "\n")
576
# delete the msg file in any case
577
try: os.unlink(msgfilename)
added
removed
bzrlib/osutils.py
