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This contains helper routines that are independent of the SCM core and
hide platform-specific details from the core.
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>>> d = digester([b'md5', b'sha1'])
>>> d.update(b'foo')
>>> [k for k in sorted(d)]
['md5', 'sha1']
>>> d[b'md5']
'acbd18db4cc2f85cedef654fccc4a4d8'
>>> d[b'sha1']
'0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33'
>>> digester.preferred([b'md5', b'sha1'])
'sha1'
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``bufferedinputpipe`` makes low-level calls to ``os.read()`` that
bypass ``fileobjectproxy``. Because of this, we need to make
``bufferedinputpipe`` aware of these operations.
This variation of ``bufferedinputpipe`` can notify observers about
``os.read()`` events. It also re-publishes other events, such as
``read()`` and ``readline()``.
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This type is intended to only be used for testing purposes. Think hard
before using it in important code.
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r/ d SXd S( s( Return version information if available.i ( t __version__t unknownN( R R� R$ t ImportError( R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR$ � s
i c C@ sU | s t � } n t j d | � } | s: d | } } n: | j d � r^ | j � \ } } n | j d � d } } g } xC | j d � D]2 } y | j t | � � Wq� t k
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sz Parses a Mercurial version string into an N-tuple.
The version string to be parsed is specified with the ``v`` argument.
If it isn't defined, the current Mercurial version string will be parsed.
``n`` can be 2, 3, or 4. Here is how some version strings map to
returned values:
>>> v = b'3.6.1+190-df9b73d2d444'
>>> versiontuple(v, 2)
(3, 6)
>>> versiontuple(v, 3)
(3, 6, 1)
>>> versiontuple(v, 4)
(3, 6, 1, '190-df9b73d2d444')
>>> versiontuple(b'3.6.1+190-df9b73d2d444+20151118')
(3, 6, 1, '190-df9b73d2d444+20151118')
>>> v = b'3.6'
>>> versiontuple(v, 2)
(3, 6)
>>> versiontuple(v, 3)
(3, 6, None)
>>> versiontuple(v, 4)
(3, 6, None, None)
>>> v = b'3.9-rc'
>>> versiontuple(v, 2)
(3, 9)
>>> versiontuple(v, 3)
(3, 9, None)
>>> versiontuple(v, 4)
(3, 9, None, 'rc')
>>> v = b'3.9-rc+2-02a8fea4289b'
>>> versiontuple(v, 2)
(3, 9)
>>> versiontuple(v, 3)
(3, 9, None)
>>> versiontuple(v, 4)
(3, 9, None, 'rc+2-02a8fea4289b')
>>> versiontuple(b'4.6rc0')
(4, 6, None, 'rc0')
>>> versiontuple(b'4.6rc0+12-425d55e54f98')
(4, 6, None, 'rc0+12-425d55e54f98')
>>> versiontuple(b'.1.2.3')
(None, None, None, '.1.2.3')
>>> versiontuple(b'12.34..5')
(12, 34, None, '..5')
>>> versiontuple(b'1.2.3.4.5.6')
(1, 2, 3, '.4.5.6')
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Call preparewrite before doing any writes.
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c C@ s t | d d � d | _ | S( s always do a cheap copyR� i i ( R� R� ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt copyJ s ( RC RD RE R� R� ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� = s t sortdictc B@ s, e Z d Z d � Z e j r* d � Z n RS( s� a simple sorted dictionary
>>> d1 = sortdict([(b'a', 0), (b'b', 1)])
>>> d2 = d1.copy()
>>> d2
sortdict([('a', 0), ('b', 1)])
>>> d2.update([(b'a', 2)])
>>> list(d2.keys()) # should still be in last-set order
['b', 'a']
c C@ s3 | | k r | | =n t t | � j | | � d S( N( R` R� t __setitem__( R0 R; R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� [ s
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t cowdictc B@ s e Z d Z RS( s� copy-on-write dict
Be sure to call d = d.preparewrite() before writing to d.
>>> a = cowdict()
>>> a is a.preparewrite()
True
>>> b = a.copy()
>>> b is a
True
>>> c = b.copy()
>>> c is a
True
>>> a = a.preparewrite()
>>> b is a
False
>>> a is a.preparewrite()
True
>>> c = c.preparewrite()
>>> b is c
False
>>> b is b.preparewrite()
True
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transactionalc B@ sM e Z d Z e j Z e j d � � Z e j d � � Z d � Z d � Z
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N( ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt release� R c C@ s | S( N( ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt __enter__� s c C@ s/ z | d k r | j � n Wd | j � Xd S( N( R@ Rm R� ( R0 t exc_typet exc_valt exc_tb( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt __exit__� s ( RC RD RE t abct ABCMetat
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c C@ s t | _ d | _ d | _ d S( s Mark the node as emptied.i N( R R; R@ R� R ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt markempty� s ( u nextu prevu keyu valueu cost( RC RD RE R� R4 R ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR � s t lrucachedictc B@ s� e Z d Z d d � Z d � Z d � Z d � Z d � Z d d � Z d � Z d � Z
d d
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d d d � Z d
� Z d � Z d � Z d � Z RS( s Dict that caches most recent accesses and sets.
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The head node is the newest entry in the cache. If the cache is full,
we recycle head.prev and make it the new head. Cache accesses result in
the node being moved to before the existing head and being marked as the
new head node.
Items in the cache can be inserted with an optional "cost" value. This is
simply an integer that is specified by the caller. The cache can be queried
for the total cost of all items presently in the cache.
The cache can also define a maximum cost. If a cache insertion would
cause the total cost of the cache to go beyond the maximum cost limit,
nodes will be evicted to make room for the new code. This can be used
to e.g. set a max memory limit and associate an estimated bytes size
cost to each item in the cache. By default, no maximum cost is enforced.
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} | j t k r� | j | j 8_ | j | j =n | | _ | | _ | | _ | j | 7_ | | j | <| | _ | j r,| j � n d S( s8 Insert a new item in the cache with optional cost value.N( R t getR@ R R R� R R t _enforcecostlimitRI R t _addcapacityR R R; R ( R0 R3 RV R R ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt insert s0
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R ( R0 R3 R ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt __delitem__* s
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| j | j d | j �| j } q� W| S( s8 Create a new cache as a copy of the current one.
By default, the new cache has the same capacity as the existing one.
But, the cache capacity can be changed as part of performing the
copy.
Items in the copy have an insertion/access order matching this
instance.
R R (
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d S| j j } x | j t k r7 | j } q W| j | j } } | j | j =| j | j 8_ | j � | | f S( su Remove the oldest item from the cache.
Returns the (key, value) describing the removed cache entry.
N( R R R R; R R� R R R ( R0 R� R; R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt popoldestd s
c C@ sg | j } | j | j _ | j | j _ | j | _ | j j | _ | | j _ | | j _ | | _ d S( sq Mark a node as the newest, making it the new head.
When a node is accessed, it becomes the freshest entry in the LRU
list, which is denoted by self._head.
Visually, let's make ``N`` the new head node (* denotes head):
previous/oldest <-> head <-> next/next newest
----<->--- A* ---<->-----
| |
E <-> D <-> N <-> C <-> B
To:
----<->--- N* ---<->-----
| |
E <-> D <-> C <-> B <-> A
This requires the following moves:
C.next = D (node.prev.next = node.next)
D.prev = C (node.next.prev = node.prev)
E.next = N (head.prev.next = node)
N.prev = E (node.prev = head.prev)
N.next = A (node.next = head)
A.prev = N (head.prev = node)
N( R R
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The new node is inserted before the head node.
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disable garbage collector
Python's garbage collector triggers a GC each time a certain number of
container objects (the number being defined by gc.get_threshold()) are
allocated even when marked not to be tracked by the collector. Tracking has
no effect on when GCs are triggered, only on what objects the GC looks
into. As a workaround, disable GC while building complex (huge)
containers.
This garbage collector issue have been fixed in 2.7. But it still affect
CPython's performance.
c @ sB t j � } t j � z � | | � SWd | r= t j � n Xd S( N( t gct isenabledt disablet enable( Rv Rw t gcenabled( R� ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt wrapper7 s
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n1 should use os.sep to separate directories
n2 should use "/" to separate directories
returns an os.sep-separated path.
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n2 should always be relative to root.
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r�} t j t | � � � n Xd S( s copy a file, preserving mode and optionally other stat info like
atime/mtime
checkambig argument is used with filestat, and is useful only if
destination file is guarded by any lock (e.g. repo.lock or
repo.wlock).
copystat and checkambig should be exclusive.
Ni i���( R@ R{ RH t lexistst filestatt frompatht unlinkt getfstypet dirnamet OSErrort _hardlinkfswhitelistRe t oslinkt IOErrort islinkt symlinkt readlinkt shutilt copyfilet copystatt copymodet statt isambigt ST_MTIMEt utimet ErrorR R- t str(
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k rK t d � | SqK Wd S( sU Check that the base-relative path is a valid filename on Windows.
Returns None if the path is ok, or a UI string describing the problem.
>>> checkwinfilename(b"just/a/normal/path")
>>> checkwinfilename(b"foo/bar/con.xml")
"filename contains 'con', which is reserved on Windows"
>>> checkwinfilename(b"foo/con.xml/bar")
"filename contains 'con', which is reserved on Windows"
>>> checkwinfilename(b"foo/bar/xml.con")
>>> checkwinfilename(b"foo/bar/AUX/bla.txt")
"filename contains 'AUX', which is reserved on Windows"
>>> checkwinfilename(b"foo/bar/bla:.txt")
"filename contains ':', which is reserved on Windows"
>>> checkwinfilename(b"foo/bar/b\07la.txt")
"filename contains '\\x07', which is invalid on Windows"
>>> checkwinfilename(b"foo/bar/bla ")
"filename ends with ' ', which is not allowed on Windows"
>>> checkwinfilename(b"../bar")
>>> checkwinfilename(b"foo\\")
"filename ends with '\\', which is invalid on Windows"
>>> checkwinfilename(b"foo\\/bar")
"directory name ends with '\\', which is invalid on Windows"
s \s3 filename ends with '\', which is invalid on Windowss \/s9 directory name ends with '\', which is invalid on WindowsRF s4 filename contains '%s', which is reserved on Windowsi s3 filename contains '%s', which is invalid on WindowsR� i i����s . s ..s8 filename ends with '%s', which is not allowed on WindowsN( t endswithR. t replaceR� t _filenamebytestrt _winreservedcharst ordR R� t lowert _winreservednames( RH R� t ct baset t( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt checkwinfilename� s,
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rQ n Xt j t j Bt j Bt t d d � B} t j
| | � } t j | | � t j | � d S( s� Create a lock file atomically if possible
This may leave a stale lock file if symlink isn't supported and signal
interrupt is enabled.
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c C@ s� t j | � } t j j | � \ } } | j � } | | k r^ | j � } | | k r^ t Sn t j j | | � } y' t j | � } | | k r� t St SWn t k
r� t SXd S( s�
Return true if the given path is on a case-sensitive filesystem
Requires a path (like /foo/.hg) ending with a foldable final
directory component.
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r� q� Xn t j | | � S( s� Compile a regular expression, using re2 if possible
For best performance, use only re2-compatible regexp features. The
only flags from the re module that are re2-compatible are
IGNORECASE and MULTILINE.i s (?i)s (?m)N( R� R@ R� R� t
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c C@ s1 t d k r | j � n t r& t j St j Sd S( s� Return the version of escape corresponding to self.compile.
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function depends on the flags, etc, but it's the best we can do.
N( R� R@ R� R� t escapeR� ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� � s
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| � S( s4 Get name in the case stored in the filesystem
The name should be relative to root, and be normcase-ed for efficiency.
Note that this function is unnecessary, and should not be
called, for case-sensitive filesystems (simply because it's expensive).
The root should be normcase-ed, too.
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c C@ s+ | j t j � p* t j o* | j t j � S( s) Check path ends with os.sep or os.altsep.( R� R RN R� ( RH ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt endswithsep� s c C@ s | j t j � S( s� Split path by os.sep.
Note that this function does not use os.altsep because this is
an alternative of simple "xxx.split(os.sep)".
It is recommended to use os.path.normpath() before using this
function if need.( R� R RN ( RH ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyRL � s c C@ sH t j j | � \ } } t j d d | d d d | � \ } } t j | � t | | | � | rg | Sy� y t | d � } WnJ t k
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r<n X� n X| S(
s Create a temporary file with the same contents from name
The permission bits are copied from the original file.
If the temporary file is going to be truncated immediately, you
can use emptyok=True as an optimization.
Returns the name of the temporary file.
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Rm c B@ sb e Z d Z d � Z e d � � Z e d � � Z e j Z d � Z d � Z
d � Z d � Z RS( s� help to exactly detect change of a file
'stat' attribute is result of 'os.stat()' if specified 'path'
exists. Otherwise, it is None. This can avoid preparative
'exists()' examination on client side of this class.
c C@ s
| | _ d S( N( R} ( R0 R} ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR4 s c C@ sQ y t j | � } Wn1 t k
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c C@ s t j | j � � } | | � S( N( R{ R� Rl ( Rb R R} ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt fromfp# s c C@ s� yZ | j j | j j k oX | j t j | j t j k oX | j t j | j t j k SWn t k
rm n Xy | j d k o� | j d k SWn t k
r� t SXd S( N( R} R� t ST_CTIMER R� R@ Re ( R0 t old( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt __eq__* s "
c C@ s; y" | j t j | j t j k SWn t k
r6 t SXd S( s Examine whether new (= self) stat is ambiguous against old one
"S[N]" below means stat of a file at N-th change:
- S[n-1].ctime < S[n].ctime: can detect change of a file
- S[n-1].ctime == S[n].ctime
- S[n-1].ctime < S[n].mtime: means natural advancing (*1)
- S[n-1].ctime == S[n].mtime: is ambiguous (*2)
- S[n-1].ctime > S[n].mtime: never occurs naturally (don't care)
- S[n-1].ctime > S[n].ctime: never occurs naturally (don't care)
Case (*2) above means that a file was changed twice or more at
same time in sec (= S[n-1].ctime), and comparison of timestamp
is ambiguous.
Base idea to avoid such ambiguity is "advance mtime 1 sec, if
timestamp is ambiguous".
But advancing mtime only in case (*2) doesn't work as
expected, because naturally advanced S[n].mtime in case (*1)
might be equal to manually advanced S[n-1 or earlier].mtime.
Therefore, all "S[n-1].ctime == S[n].ctime" cases should be
treated as ambiguous regardless of mtime, to avoid overlooking
by confliction between such mtime.
Advancing mtime "if isambig(oldstat)" ensures "S[n-1].mtime !=
S[n].mtime", even if size of a file isn't changed.
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See http://www.ietf.org/rfc/rfc2396.txt for more information.
Note that for backward compatibility reasons, bundle URLs do not
take host names. That means 'bundle://../' has a path of '../'.
Examples:
>>> url(b'http://www.ietf.org/rfc/rfc2396.txt')
<url scheme: 'http', host: 'www.ietf.org', path: 'rfc/rfc2396.txt'>
>>> url(b'ssh://[::1]:2200//home/joe/repo')
<url scheme: 'ssh', host: '[::1]', port: '2200', path: '/home/joe/repo'>
>>> url(b'file:///home/joe/repo')
<url scheme: 'file', path: '/home/joe/repo'>
>>> url(b'file:///c:/temp/foo/')
<url scheme: 'file', path: 'c:/temp/foo/'>
>>> url(b'bundle:foo')
<url scheme: 'bundle', path: 'foo'>
>>> url(b'bundle://../foo')
<url scheme: 'bundle', path: '../foo'>
>>> url(br'c:\foo\bar')
<url path: 'c:\\foo\\bar'>
>>> url(br'\\blah\blah\blah')
<url path: '\\\\blah\\blah\\blah'>
>>> url(br'\\blah\blah\blah#baz')
<url path: '\\\\blah\\blah\\blah', fragment: 'baz'>
>>> url(br'file:///C:\users\me')
<url scheme: 'file', path: 'C:\\users\\me'>
Authentication credentials:
>>> url(b'ssh://joe:xyz@x/repo')
<url scheme: 'ssh', user: 'joe', passwd: 'xyz', host: 'x', path: 'repo'>
>>> url(b'ssh://joe@x/repo')
<url scheme: 'ssh', user: 'joe', host: 'x', path: 'repo'>
Query strings and fragments:
>>> url(b'http://host/a?b#c')
<url scheme: 'http', host: 'host', path: 'a', query: 'b', fragment: 'c'>
>>> url(b'http://host/a?b#c', parsequery=False, parsefragment=False)
<url scheme: 'http', host: 'host', path: 'a?b#c'>
Empty path:
>>> url(b'')
<url path: ''>
>>> url(b'#a')
<url path: '', fragment: 'a'>
>>> url(b'http://host/')
<url scheme: 'http', host: 'host', path: ''>
>>> url(b'http://host/#a')
<url scheme: 'http', host: 'host', path: '', fragment: 'a'>
Only scheme:
>>> url(b'http:')
<url scheme: 'http'>
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s� Join the URL's components back into a URL string.
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>>> bytes(url(b'http://user:pw@host:80/c:/bob?fo:oo#ba:ar'))
'http://user:pw@host:80/c:/bob?fo:oo#ba:ar'
>>> bytes(url(b'http://user:pw@host:80/?foo=bar&baz=42'))
'http://user:pw@host:80/?foo=bar&baz=42'
>>> bytes(url(b'http://user:pw@host:80/?foo=bar%3dbaz'))
'http://user:pw@host:80/?foo=bar%3dbaz'
>>> bytes(url(b'ssh://user:pw@[::1]:2200//home/joe#'))
'ssh://user:pw@[::1]:2200//home/joe#'
>>> bytes(url(b'http://localhost:80//'))
'http://localhost:80//'
>>> bytes(url(b'http://localhost:80/'))
'http://localhost:80/'
>>> bytes(url(b'http://localhost:80'))
'http://localhost:80/'
>>> bytes(url(b'bundle:foo'))
'bundle:foo'
>>> bytes(url(b'bundle://../foo'))
'bundle:../foo'
>>> bytes(url(b'path'))
'path'
>>> bytes(url(b'file:///tmp/foo/bar'))
'file:///tmp/foo/bar'
>>> bytes(url(b'file:///c:/tmp/foo/bar'))
'file:///c:/tmp/foo/bar'
>>> print(url(br'bundle:foo\bar'))
bundle:foo\bar
>>> print(url(br'file:///D:\data\hg'))
file:///D:\data\hg
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c C@ s t t | � j � S( N( Ri Rk Rx ( RH ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt hasschemez s c C@ s* | o) | d d !d k o) | d d !j � S( Ni i Rn i ( t isalpha( RH ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR} } s c C@ s t | d t d t �j � S( NR� R� ( Rk Re RG ( RH ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt urllocalpath� s c C@ sY t j | � } | j d � s- | j d � rU t j t d � t j | � f � � n d S( s\ check if a path / url is a potentially unsafe ssh exploit (SEC)
This is a sanity check for ssh urls. ssh will parse the first item as
an option; e.g. ssh://-oProxyCommand=curl${IFS}bad.server|sh/path.
Let's prevent these potentially exploited urls entirely and warn the
user.
Raises an error.Abort when the url is unsafe.
s ssh://-s svn+ssh://-s potentially unsafe url: %rN( R� R� R~ R R- R. R R� ( RH ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt checksafessh� s
c C@ s+ t | � } | j r! d | _ n t | � S( s$ hide user credential in a url strings ***( Rk Ru R� ( t u( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt hidepassword� s c C@ s& t | � } d | _ | _ t | � S( s7 remove all authentication information from a url stringN( Rk R@ Rt Ru R� ( R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt
removeauth� s g @�@s %.0f ss %.1f ss %.2f ss %.3f sg����MbP?s %.1f mss %.2f mss %.3f msg���ư>s %.1f uss %.2f uss %.3f usg��&� .>s %.1f nss %.2f nss %.3f nst timedcmstatsc B@ sh e Z d Z e j d e j d � � � Z e j d d � Z e j d d � Z d � Z e
j e � Z RS( sF Stats information produced by the timedcm context manager on entering.R c C@ s t � S( N( t timer( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� � R i i c C@ s | j r t | j � Sd S( Ns <unknown>( t elapsedt timecount( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� � s (
RC RD RE R t ibt Factoryt startR� R� R� R R� R� ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� � s c g@ sm t j d 7_ t d t j � } z" t j | | � �
| VWd QXWd t � | j | _ t j d 8_ Xd S( s� A context manager that produces timing information for a given context.
On entering a timedcmstats instance is produced.
This context manager is reentrant.
i R� N( t timedcmt _nestedR� R t logR� R� R� ( t whencefmtt
whenceargst timing_stats( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� � s
c @ s � f d � } | S( s� Report the execution time of a function call to stderr.
During development, use as a decorator when you need to measure
the cost of a function, e.g. as follows:
@util.timed
def foo(a, b, c):
pass
c @ sn t t j � j � � � } � | | � } Wd QXt j } | j d d | j d t j � j � | f � | S( Ns %s%s: %s
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time_statsR% R� ( R� ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyRD � s ( ( R� RD ( ( R� s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt timed� s R� R3 t gt kbt mbt gbRS c C@ s� | j � j � } yS xB t D]: \ } } | j | � r t t | t | � � | � Sq Wt | � SWn* t k
r� t j t
d � | � � n Xd S( s� Convert a space specifier to a byte count.
>>> sizetoint(b'30')
30
>>> sizetoint(b'2.2kb')
2252
>>> sizetoint(b'6M')
6291456
s couldn't parse size: %sN( t stripR� t
_sizeunitsR� R� R= RR R� R RE R. ( R2 R� R3 R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt sizetoint� s
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t hooksc B@ s) e Z d Z d � Z d � Z d � Z RS( s� A collection of hook functions that can be used to extend a
function's behavior. Hooks are called in lexicographic order,
based on the names of their sources.c C@ s
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} | d k r� | |
| f Vq~ | | |
| f Vq~ Wn d S( s� Yields lines for a nicely formatted stacktrace.
Skips the 'skip' last entries, then return the last 'depth' entries.
Each file+linenumber is formatted according to fileline.
Each line is formatted according to line.
If line is None, it yields:
length of longest filepath+line number,
filepath+linenumber,
function
Not be used in production code but very convenient while developing.
i c s@ s | ] } t | d � Vq d S( i N( RR ( R� t entry( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pys <genexpr># s N( RX t
extract_stackR t sysbytesRp R@ ( t skipR� t filelinet depthR� t lnR� t _textt entriest fnmaxt fnln( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt getstackframes s P t
stacktracec C@ sf | r | j � n | j d | j � � x+ t | d d | �D] } | j | � qA W| j � d S( sW Writes a message to f (stderr) with a nicely formatted stacktrace.
Skips the 'skip' entries closest to the call, then show 'depth' entries.
By default it will flush stdout first.
It can be used everywhere and intentionally does not require an ui object.
Not be used in production code but very convenient while developing.
s %s at:
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c C@ sN | j } x> t | � D]0 } | | k r< | | c d 7<d Sd | | <q Wd S( Ni ( R� t finddirs( R0 RH R� R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� G s c C@ sO | j } x? t | � D]1 } | | d k r@ | | c d 8<d S| | =q Wd S( Ni ( R� R� ( R0 RH R� R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt delpathO s c C@ s
t | j � S( N( R= R� ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR> W s c C@ s
| | j k S( N( R� ( R0 R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR Z s N( RC RD RE R@ R4 R� R� R> R ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� 9 s c c@ sD | j d � } x. | d k r? | | V| j d d | � } q Wd S( NRF i����i ( t rfind( RH R- ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� ` s t servert clientu compenginewireprotosupportu nameu serverpriorityu clientpriorityt compressormanagerc B@ s� e Z d Z d � Z d � Z d � Z d � Z d � Z e d � � Z e d � � Z
d � Z d � Z e
d
� Z d � Z d � Z RS(
sG Holds registrations of various compression engines.
This class essentially abstracts the differences between compression
engines to allow new compression formats to be added easily, possibly from
extensions.
Compressors are registered against the global instance by calling its
``register()`` method.
c C@ s1 i | _ i | _ i | _ i | _ i | _ d S( N( t _enginest _bundlenamest _bundletypest _revlogheaderst
_wiretypes( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR4 y s
c C@ s | j | S( N( R� ( R0 R; ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR< � s c C@ s
| | j k S( N( R� ( R0 R; ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR � s c C@ s t | j j � � S( N( R= R� RM ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR> � s c C@ s� t | t � s$ t t d � � � n | j � } | | j k r[ t j t d � | � � n | j � } | r| \ } } | | j k r� t j t d � | � � n | | j
k r� t j t d � | | j
| f � � n | r� | | j | <n | | j
| <n | j � } | re| j } | | j k rUt j t d � | | j | f � � n | | j | <n | j
� } | r�| | j k r�t j t d � | | j | f � � n | r�| | j | <n | | j | <d S( sx Register a compression engine with the manager.
The argument must be a ``compressionengine`` instance.
s$ argument must be a compressionengines( compression engine %s already registereds! bundle name %s already registereds' bundle type %s already registered by %ss5 wire protocol compression %s already registered by %ss) revlog header %s already registered by %sN( R] t compressionengineR� R. R� R� R R- t
bundletypeR� R� t wireprotosupportR� t revlogheaderR� ( R0 t engineR� t
bundleinfot
bundlenameR� t wiresupportt wiretypeR� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt register� s@
c C@ s t | j j � � S( N( t setR� RM ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt supportedbundlenames� s c C@ s t | j j � � S( N( R� R� RM ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt supportedbundletypes� s c C@ sF | j | j | } | j � sB t j t d � | j � � � n | S( s� Obtain a compression engine registered to a bundle name.
Will raise KeyError if the bundle type isn't registered.
Will abort if the engine is known but not available.
s) compression engine %s could not be loaded( R� R� t availableR R- R. R� ( R0 R� R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt
forbundlename� s
c C@ sF | j | j | } | j � sB t j t d � | j � � � n | S( s� Obtain a compression engine registered to a bundle type.
Will raise KeyError if the bundle type isn't registered.
Will abort if the engine is known but not available.
s) compression engine %s could not be loaded( R� R� R� R R- R. R� ( R0 R� R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt
forbundletype� s
c @ s� | t k r d n d � g | j j � D] } | j | ^ q( } | ro g | D] } | j � rN | ^ qN } n � f d � } t t | d | �� S( s� Obtain compression engines that support the wire protocol.
Returns a list of engines in prioritized order, most desired first.
If ``onlyavailable`` is set, filter out engines that can't be
loaded.
t serverpriorityt clientpriorityc @ s& | j � } d t | � � | j f S( Ni����( R� R� R� ( R R ( R ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt getkey� s R; ( t
SERVERROLER� R5 R� R� t listt sorted( R0 t rolet
onlyavailableR t enginesR� ( ( R s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt supportedwireengines� s
)(c C@ sF | j | j | } | j � sB t j t d � | j � � � n | S( Ns) compression engine %s could not be loaded( R� R� R� R R- R. R� ( R0 R� R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt forwiretype� s
c C@ s | j | j | S( s� Obtain a compression engine registered to a revlog header.
Will raise KeyError if the revlog header value isn't registered.
( R� R� ( R0 t header( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt forrevlogheader
s ( RC RD RE R4 R< R R> R� R~ R� R� R� R� R| R� R� R� ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� o s 3
R� c B@ s\ e Z d Z d � Z d � Z d � Z d � Z d � Z d d � Z d � Z
d d � Z RS(
su Base class for compression engines.
Compression engines must implement the interface defined by this class.
c C@ s
t � � d S( s� Returns the name of the compression engine.
This is the key the engine is registered under.
This method must be implemented.
N( t NotImplementedError( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR�
s c C@ s t S( s Whether the compression engine is available.
The intent of this method is to allow optional compression engines
that may not be available in all installations (such as engines relying
on C extensions that may not be present).
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s c C@ s d S( s� Describes bundle identifiers for this engine.
If this compression engine isn't supported for bundles, returns None.
If this engine can be used for bundles, returns a 2-tuple of strings of
the user-facing "bundle spec" compression name and an internal
identifier used to denote the compression format within bundles. To
exclude the name from external usage, set the first element to ``None``.
If bundle compression is supported, the class must also implement
``compressstream`` and `decompressorreader``.
The docstring of this method is used in the help system to tell users
about this engine.
N( R@ ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� "
s c C@ s d S( s� Declare support for this compression format on the wire protocol.
If this compression engine isn't supported for compressing wire
protocol payloads, returns None.
Otherwise, returns ``compenginewireprotosupport`` with the following
fields:
* String format identifier
* Integer priority for the server
* Integer priority for the client
The integer priorities are used to order the advertisement of format
support by server and client. The highest integer is advertised
first. Integers with non-positive values aren't advertised.
The priority values are somewhat arbitrary and only used for default
ordering. The relative order can be changed via config options.
If wire protocol compression is supported, the class must also implement
``compressstream`` and ``decompressorreader``.
N( R@ ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� 4
s c C@ s d S( sP Header added to revlog chunks that identifies this engine.
If this engine can be used to compress revlogs, this method should
return the bytes used to identify chunks compressed with this engine.
Else, the method should return ``None`` to indicate it does not
participate in revlog compression.
N( R@ ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� M
s c C@ s
t � � d S( s� Compress an iterator of chunks.
The method receives an iterator (ideally a generator) of chunks of
bytes to be compressed. It returns an iterator (ideally a generator)
of bytes of chunks representing the compressed output.
Optionally accepts an argument defining how to perform compression.
Each engine treats this argument differently.
N( R� ( R0 t itt opts( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt compressstreamW
s
c C@ s
t � � d S( s� Perform decompression on a file object.
Argument is an object with a ``read(size)`` method that returns
compressed data. Return value is an object with a ``read(size)`` that
returns uncompressed data.
N( R� ( R0 RO ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt decompressorreaderc
s c C@ s
t � � d S( sL Obtain an object that can be used to compress revlog entries.
The object has a ``compress(data)`` method that compresses binary
data. This method returns compressed binary data or ``None`` if
the data could not be compressed (too small, not compressible, etc).
The returned data should have a header uniquely identifying this
compression format so decompression can be routed to this engine.
This header should be identified by the ``revlogheader()`` return
value.
The object has a ``decompress(data)`` method that decompresses
data. The method will only be called if ``data`` begins with
``revlogheader()``. The method should return the raw, uncompressed
data or raise a ``StorageError``.
The object is reusable but is not thread safe.
N( R� ( R0 R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt revlogcompressorl
s N( RC RD RE R� R� R� R� R� R@ R� R� R� ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR�
s
t _CompressedStreamReaderc B@ s# e Z d � Z d � Z d � Z RS( c C@ sI t | d � r | j | _ n | j | _ g | _ d | _ t | _ d S( NRs i ( R Rs t _readerRQ t _pendingt _posRe Rf ( R0 RO ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR4 �
s c C@ s
t � � d S( N( R� ( R0 R: ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyt _decompress�
s c C@ sW g } xJt rRx� | j r� t | j d � | | j k r� | j d } | j | | j | j | !� | j | 7_ d j | � S| j j d � } | j r� | j | | j � | t | � | j 8} n | j | � | t | � 8} d | _ q W| j r d j | � S| j d � } | j | � | r | j r | j r d j | � Sq Wd S( Ni R i (
R| R� RR R� R} Rt R! Rf R� R� ( R0 R3 Rz t newbufR: ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyRQ �
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s t _GzipCompressedStreamReaderc B@ s e Z d � Z d � Z RS( c C@ s) t t | � j | � t j � | _ d S( N( R` R R4 t zlibt
decompressobjt
_decompobj( R0 RO ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR4 �
s c C@ s� | j j | � } | r+ | j j | � n | j j � } y6 | j d � | j � | j d k ro t | _ n Wn t j
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decompressR� R} R� R� t unused_dataR| Rf R R ( R0 R: R R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� �
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s t _BZ2CompressedStreamReaderc B@ s e Z d � Z d � Z RS( c C@ s) t t | � j | � t j � | _ d S( N( R` R R4 t bz2t BZ2DecompressorR ( R0 RO ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR4 �
s c C@ s� | j j | � } | r+ | j j | � n y= x6 t rf | j j d � } | rb | j j | � q1 Pq1 WWn t k
r� t | _ n Xd S( NR ( R R R� R} R| t EOFErrorRf ( R0 R: R ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� �
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s t# _TruncatedBZ2CompressedStreamReaderc B@ s e Z d � Z RS( c C@ sE t t | � j | � | j j d � } | rA | j j | � n d S( Nt BZ( R` R R4 R R R� R} ( R0 RO R ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR4 �
s ( RC RD R4 ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR �
s t _ZstdCompressedStreamReaderc B@ s e Z d � Z d � Z RS( c C@ s8 t t | � j | � | | _ | j � j � | _ d S( N( R` R
R4 t _zstdt ZstdDecompressorR R ( R0 RO t zstd( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR4 �
s c C@ s� | j j | � } | r+ | j j | � n y= x6 t rf | j j d � } | rb | j j | � q1 Pq1 WWn | j j k
r� t | _ n Xd S( NR ( R R R� R} R| R t ZstdErrorRf ( R0 R: R ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� �
s ( RC RD R4 R� ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR
�
s t _zlibenginec B@ sc e Z d � Z d � Z d � Z d � Z d d � Z d � Z d e f d � � YZ
d d � Z RS(
c C@ s d S( NR ( ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� �
s c C@ s d S( s� zlib compression using the DEFLATE algorithm.
All Mercurial clients should support this format. The compression
algorithm strikes a reasonable balance between compression ratio
and size.
t gzipt GZ( R R ( ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� �
s c C@ s t d d d � S( NR i ( t compewireprotosupport( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� �
s c C@ s d S( NR6 ( ( R0 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� �
s c c@ sd | p i } t j | j d d � � } x+ | D]# } | j | � } | r. | Vq. q. W| j � Vd S( NR� i����( R t compressobjR t compressR� ( R0 R� R� t zR: R6 ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� �
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c C@ s
t | � S( N( R ( R0 RO ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� s t zlibrevlogcompressorc B@ s e Z d � Z d � Z RS( c C@ s� t | � } | d k r d S| d k rQ t j | � } t | � | k rM | Sd St j � } g } d } x= | | k r� | d } | j | j | | | !� � | } ql W| j | j � � t t t | � � | k r� d j | � Sd Sd S( Ni, i@B i i i R i (
RR R@ R R R R} R� t sumR� Rt ( R0 R6 t insizet
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All Mercurial clients should support this format.
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decompression.
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compression at much higher speeds.
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Use this compression engine to explicitly disable compression.
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Only supported by Mercurial 4.1 and newer clients.
With the default settings, zstd compression is both faster and yields
better compression than ``gzip``. It also frequently yields better
compression than ``bzip2`` while operating at much higher speeds.
If this engine is available and backwards compatibility is not a
concern, it is likely the best available engine.
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c C@ s. | p i } | j | j d | j d d � �S( NR� i ( R. R+ R ( R0 R� ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR� s N( RC RD R� R. R+ R� R� R� R� R@ R� R� R� R. R� ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR* � s >c C@ s� i } d t f d � � Y} x� t D]� } t | } | j � sE q# n | j � } | s# | d ri q# n d | d t j | j � f } | � } t j | � | _ | j j | _ | j | _ | | | d <q# W| S( s@ Obtains a list of available bundle compressions for use in help.t docobjectc B@ s e Z RS( ( RC RD ( ( ( s4 /usr/lib64/python2.7/site-packages/mercurial/util.pyR7 s i s
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Generate a name that it is safe to rename f to in the given context.
f: filename to rename
tag: a string tag that will be included in the new name
ctx: a context, in which the new name must not exist
others: a set of other filenames that the new name must not be in
Returns a file name of the form oldname~tag[~number] which does not exist
in the provided context and is not in the set of other names.
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first.
>>> uvarintencode(0)
'\x00'
>>> uvarintencode(1)
'\x01'
>>> uvarintencode(127)
'\x7f'
>>> uvarintencode(1337)
'\xb9\n'
>>> uvarintencode(65536)
'\x80\x80\x04'
>>> uvarintencode(-1)
Traceback (most recent call last):
...
ProgrammingError: negative value for uvarint: -1
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>>> try:
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>>> uvarintdecodestream(BytesIO(b'\x00'))
0
>>> uvarintdecodestream(BytesIO(b'\x01'))
1
>>> uvarintdecodestream(BytesIO(b'\x7f'))
127
>>> uvarintdecodestream(BytesIO(b'\xb9\n'))
1337
>>> uvarintdecodestream(BytesIO(b'\x80\x80\x04'))
65536
>>> uvarintdecodestream(BytesIO(b'\x80'))
Traceback (most recent call last):
...
Abort: stream ended unexpectedly (got 0 bytes, expected 1)
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