'dirstate._normalize()', the only caller of 'util.fspath()', has
already normcase()-ed path before invocation of it.
normcase()-ed root can be cached on dirstate side, too.
so, this patch changes 'util.fspath()' API specification to avoid
normcase()-ing in it.
Before:
>>> str(url('file:///c:/tmp/foo/bar'))
'file:c%3C/tmp/foo/bar'
After:
>>> str(url('file:///c:/tmp/foo/bar'))
'file:///c%3C/tmp/foo/bar'
The previous behaviour had no effect on mercurial itself (clone command for
instance) because we fortunately called .localpath() on the parsed URL.
hgsubversion was not so lucky and cloning a local subversion repository on
Windows no longer worked on the default branch (it works on stable because
2b62605189dc defeats the hasdriveletter() test in url class).
I do not know if the %3C is correct or not but svn accepts file:// URLs
containing it. Mads fixed it in 2b62605189dc, so we can always backport should
the need arise.
Python's time module sets timezone and altzone based on UTC offsets of
two dates: first and middle day of the current year. This approach
doesn't work on a year when DST rules change.
For example Russia abandoned winter time this year, so the correct UTC
offset should be +4 now, but time.timezone returns 3 hours difference
because that's what it was on 01.01.2011.
Related python issue: http://bugs.python.org/issue1647654
It was very elegant that httpsendfile implemented __len__ like a string. It was
however also dangerous because that protocol can't handle sizes bigger than 2 GB.
Mercurial tried to work around that, but it turned out to be too easy to
introduce new errors in this area.
With this change __len__ is no longer implemented at all and the code will work
the same way for short and long posts.
neither number of 'bytes' in any encoding nor 'characters' is
appropriate to calculate terminal columns for specified string.
this patch modifies MBTextWrapper for:
- overriding '_wrap_chunks()' to make it use not built-in 'len()'
but 'encoding.colwidth()' for columns of string
- fixing '_cutdown()' to make it use 'encoding.colwidth()' instead
of local, similar but incorrect implementation
this patch also modifies 'encoding.py':
- dividing 'colwith()' into 2 pieces: one for calculation columns of
specified UNICODE string, and another for rest part of original
one. the former is used from MBTextWrapper in 'util.py'.
- preventing 'colwidth()' from evaluating HGENCODINGAMBIGUOUS
configuration per each invocation: 'unicodedata.east_asian_width'
checking is kept intact for reducing startup cost.
This re-introduces the unicode conversion what was lost in e5976ee55f4b 5 years
ago and had the comment:
To avoid corrupting multi-byte characters in line, we must wrap
a Unicode string instead of a bytestring.
urllib2 password manager does not strip credentials from URIs registered with
add_password() and compare them with stripped URIs in find_password(). Remove
credentials from URIs returned by util.url.authinfo(). It sometimes works when
no port was specified as the URI host is registered too.
8264e5172141 made sure that paths that seemed to start with a windows drive
letter would not get an extra leading slash.
localpath should thus not try to handle this case by removing a leading slash,
and this special handling is thus removed.
(The localpath handling of this case was wrong anyway, because paths that look
like they start with a windows drive letter can't have a leading slash.)
A quick verification of this is to run 'hg id file:///c:/foo/bar/'.
The usual contract is that close() makes your writes permanent, so
atomictempfile's use of close() to *discard* writes (and rename() to
keep them) is rather unexpected. Thus, change it so close() makes
things permanent and add a new discard() method to throw them away.
discard() is only used internally, in __del__(), to ensure that writes
are discarded when an atomictempfile object goes out of scope.
I audited mercurial.*, hgext.*, and ~80 third-party extensions, and
found no one using the existing semantics of close() to discard
writes, so this should be safe.
Before, makedirs could call itself recursively with the same path name it was
given, relying on sane file system behavior to terminate the recursion. That
could cause infinite recursion on insane file systems.
Instead we now call mkdir explicitly after having created parent directory
recursively. Exceptions from this mkdir is not swallowed.
This re-introduces the unicode conversion what was lost in e5976ee55f4b 5 years
ago and had the comment:
To avoid corrupting multi-byte characters in line, we must wrap
a Unicode string instead of a bytestring.
reducing it to a NOP on Windows.
This eliminates a pointless stat call on Windows and reduces the risk of
interferring with other processes (e.g. AV-scanners, file change watchers).
See also http://mercurial.selenic.com/wiki/UnlinkingFilesOnWindows, item 2d
util is never imported by any other name than util, so this is mostly just a
simple search and replace from util.localpath to util.urllocalpath (assuming
other uses of util.localpath already has been renamed).
str(url) was recently changed to return only file:/. However, the
canonical way to represent absolute local paths is file:/// [1], which
is also expected by at least hgsubversion.
Relative paths are returned as file:the/relative/path.
[1] http://en.wikipedia.org/wiki/File_URI_scheme
This class contains a stat result, and possibly other file info to reliably
determine between two points in time whether a file has changed.
Uniquely identifying a file gives us that reliability because we either
atomic rename or append. So one of two will happen: the file 'id' will change,
or the size of the file will change.
posix implements it simply by calling os.stat() and checking if the result
has st_ino.
For now on Windows we always assume the path is uncacheable. This can be
improved on NTFS due to file IDs: http://msdn.microsoft.com/en-us/library/aa363788(v=vs.85).aspx
So we need to find out if a file path is on an NTFS drive, for that we have:
- GetVolumeInformation, which unfortunately only works with a root path (but is available on XP)
- GetVolumeInformationByHandleW, works on a full file path but requires Vista or higher
