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# Copyright (C) 2007-2010 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Helper functions for DirState.
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This is the python implementation for DirState functions.
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from bzrlib import cache_utf8, errors, osutils
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from bzrlib.dirstate import DirState
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from bzrlib.osutils import parent_directories, pathjoin, splitpath
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# This is the Windows equivalent of ENOTDIR
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# It is defined in pywin32.winerror, but we don't want a strong dependency for
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# XXX: Perhaps we could get it from a windows header ?
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cdef int ERROR_PATH_NOT_FOUND
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ERROR_PATH_NOT_FOUND = 3
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cdef int ERROR_DIRECTORY
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#python2.4 support, and other platform-dependent includes
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cdef extern from "python-compat.h":
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unsigned long htonl(unsigned long)
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# Give Pyrex some function definitions for it to understand.
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# All of these are just hints to Pyrex, so that it can try to convert python
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# objects into similar C objects. (such as PyInt => int).
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# In anything defined 'cdef extern from XXX' the real C header will be
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# imported, and the real definition will be used from there. So these are just
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# hints, and do not need to match exactly to the C definitions.
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ctypedef unsigned long size_t
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cdef extern from "_dirstate_helpers_pyx.h":
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cdef extern from "stdlib.h":
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unsigned long int strtoul(char *nptr, char **endptr, int base)
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cdef extern from 'sys/stat.h':
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# On win32, this actually comes from "python-compat.h"
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# These functions allow us access to a bit of the 'bare metal' of python
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# objects, rather than going through the object abstraction. (For example,
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# PyList_Append, rather than getting the 'append' attribute of the object, and
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# creating a tuple, and then using PyCallObject).
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# Functions that return (or take) a void* are meant to grab a C PyObject*. This
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# differs from the Pyrex 'object'. If you declare a variable as 'object' Pyrex
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# will automatically Py_INCREF and Py_DECREF when appropriate. But for some
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# inner loops, we don't need to do that at all, as the reference only lasts for
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# Note that the C API GetItem calls borrow references, so pyrex does the wrong
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# thing if you declare e.g. object PyList_GetItem(object lst, int index) - you
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# need to manually Py_INCREF yourself.
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cdef extern from "Python.h":
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ctypedef int Py_ssize_t
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ctypedef struct PyObject:
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int PyList_Append(object lst, object item) except -1
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void *PyList_GetItem_object_void "PyList_GET_ITEM" (object lst, int index)
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void *PyList_GetItem_void_void "PyList_GET_ITEM" (void * lst, int index)
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object PyList_GET_ITEM(object lst, Py_ssize_t index)
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int PyList_CheckExact(object)
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Py_ssize_t PyList_GET_SIZE (object p)
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void *PyTuple_GetItem_void_void "PyTuple_GET_ITEM" (void* tpl, int index)
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object PyTuple_GetItem_void_object "PyTuple_GET_ITEM" (void* tpl, int index)
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object PyTuple_GET_ITEM(object tpl, Py_ssize_t index)
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char *PyString_AsString(object p)
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char *PyString_AsString_obj "PyString_AsString" (PyObject *string)
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char *PyString_AS_STRING_void "PyString_AS_STRING" (void *p)
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int PyString_AsStringAndSize(object str, char **buffer, Py_ssize_t *length) except -1
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object PyString_FromString(char *)
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object PyString_FromStringAndSize(char *, Py_ssize_t)
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int PyString_Size(object p)
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int PyString_GET_SIZE_void "PyString_GET_SIZE" (void *p)
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int PyString_CheckExact(object p)
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void Py_INCREF(object o)
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void Py_DECREF(object o)
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cdef extern from "string.h":
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int strncmp(char *s1, char *s2, int len)
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void *memchr(void *s, int c, size_t len)
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int memcmp(void *b1, void *b2, size_t len)
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# ??? memrchr is a GNU extension :(
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# void *memrchr(void *s, int c, size_t len)
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# cimport all of the definitions we will need to access
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from _static_tuple_c cimport import_static_tuple_c, StaticTuple, \
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StaticTuple_New, StaticTuple_SET_ITEM
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import_static_tuple_c()
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cdef void* _my_memrchr(void *s, int c, size_t n): # cannot_raise
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# memrchr seems to be a GNU extension, so we have to implement it ourselves
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def _py_memrchr(s, c):
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"""Just to expose _my_memrchr for testing.
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:param s: The Python string to search
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:param c: The character to search for
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:return: The offset to the last instance of 'c' in s
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_s = PyString_AsString(s)
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length = PyString_Size(s)
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_c = PyString_AsString(c)
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assert PyString_Size(c) == 1,\
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'Must be a single character string, not %s' % (c,)
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found = _my_memrchr(_s, _c[0], length)
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return <char*>found - <char*>_s
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cdef object safe_string_from_size(char *s, Py_ssize_t size):
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raise AssertionError(
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'tried to create a string with an invalid size: %d'
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return PyString_FromStringAndSize(s, size)
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cdef int _is_aligned(void *ptr): # cannot_raise
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"""Is this pointer aligned to an integer size offset?
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:return: 1 if this pointer is aligned, 0 otherwise.
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return ((<intptr_t>ptr) & ((sizeof(int))-1)) == 0
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cdef int _cmp_by_dirs(char *path1, int size1, char *path2, int size2): # cannot_raise
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cdef unsigned char *cur1
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cdef unsigned char *cur2
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cdef unsigned char *end1
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cdef unsigned char *end2
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if path1 == path2 and size1 == size2:
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end1 = <unsigned char*>path1+size1
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end2 = <unsigned char*>path2+size2
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# Use 32-bit comparisons for the matching portion of the string.
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# Almost all CPU's are faster at loading and comparing 32-bit integers,
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# than they are at 8-bit integers.
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# 99% of the time, these will be aligned, but in case they aren't just skip
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if _is_aligned(path1) and _is_aligned(path2):
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cur_int1 = <int*>path1
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cur_int2 = <int*>path2
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end_int1 = <int*>(path1 + size1 - (size1 % sizeof(int)))
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end_int2 = <int*>(path2 + size2 - (size2 % sizeof(int)))
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while cur_int1 < end_int1 and cur_int2 < end_int2:
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if cur_int1[0] != cur_int2[0]:
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cur_int1 = cur_int1 + 1
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cur_int2 = cur_int2 + 1
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cur1 = <unsigned char*>cur_int1
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cur2 = <unsigned char*>cur_int2
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cur1 = <unsigned char*>path1
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cur2 = <unsigned char*>path2
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while cur1 < end1 and cur2 < end2:
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if cur1[0] == cur2[0]:
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# This character matches, just go to the next one
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# The current characters do not match
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return -1 # Reached the end of path1 segment first
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elif cur2[0] == c'/':
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return 1 # Reached the end of path2 segment first
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elif cur1[0] < cur2[0]:
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# We reached the end of at least one of the strings
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return 1 # Not at the end of cur1, must be at the end of cur2
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return -1 # At the end of cur1, but not at cur2
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# We reached the end of both strings
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def cmp_by_dirs(path1, path2):
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"""Compare two paths directory by directory.
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This is equivalent to doing::
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cmp(path1.split('/'), path2.split('/'))
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The idea is that you should compare path components separately. This
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differs from plain ``cmp(path1, path2)`` for paths like ``'a-b'`` and
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``a/b``. "a-b" comes after "a" but would come before "a/b" lexically.
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:param path1: first path
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:param path2: second path
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:return: negative number if ``path1`` comes first,
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0 if paths are equal,
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and positive number if ``path2`` sorts first
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if not PyString_CheckExact(path1):
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raise TypeError("'path1' must be a plain string, not %s: %r"
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% (type(path1), path1))
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if not PyString_CheckExact(path2):
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raise TypeError("'path2' must be a plain string, not %s: %r"
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% (type(path2), path2))
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return _cmp_by_dirs(PyString_AsString(path1),
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PyString_Size(path1),
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PyString_AsString(path2),
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PyString_Size(path2))
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def _cmp_path_by_dirblock(path1, path2):
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"""Compare two paths based on what directory they are in.
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This generates a sort order, such that all children of a directory are
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sorted together, and grandchildren are in the same order as the
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children appear. But all grandchildren come after all children.
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In other words, all entries in a directory are sorted together, and
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directorys are sorted in cmp_by_dirs order.
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:param path1: first path
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:param path2: the second path
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:return: negative number if ``path1`` comes first,
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and a positive number if ``path2`` sorts first
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if not PyString_CheckExact(path1):
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raise TypeError("'path1' must be a plain string, not %s: %r"
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% (type(path1), path1))
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if not PyString_CheckExact(path2):
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raise TypeError("'path2' must be a plain string, not %s: %r"
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% (type(path2), path2))
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return _cmp_path_by_dirblock_intern(PyString_AsString(path1),
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PyString_Size(path1),
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PyString_AsString(path2),
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PyString_Size(path2))
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cdef int _cmp_path_by_dirblock_intern(char *path1, int path1_len,
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char *path2, int path2_len): # cannot_raise
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"""Compare two paths by what directory they are in.
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see ``_cmp_path_by_dirblock`` for details.
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cdef int dirname1_len
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cdef int dirname2_len
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cdef int basename1_len
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cdef int basename2_len
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if path1_len == 0 and path2_len == 0:
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if path1 == path2 and path1_len == path2_len:
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basename1 = <char*>_my_memrchr(path1, c'/', path1_len)
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if basename1 == NULL:
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basename1_len = path1_len
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dirname1_len = basename1 - path1
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basename1 = basename1 + 1
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basename1_len = path1_len - dirname1_len - 1
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basename2 = <char*>_my_memrchr(path2, c'/', path2_len)
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if basename2 == NULL:
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basename2_len = path2_len
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dirname2_len = basename2 - path2
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basename2 = basename2 + 1
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basename2_len = path2_len - dirname2_len - 1
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cmp_val = _cmp_by_dirs(dirname1, dirname1_len,
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dirname2, dirname2_len)
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cur_len = basename1_len
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if basename2_len < basename1_len:
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cur_len = basename2_len
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cmp_val = memcmp(basename1, basename2, cur_len)
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if basename1_len == basename2_len:
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if basename1_len < basename2_len:
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def _bisect_path_left(paths, path):
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"""Return the index where to insert path into paths.
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This uses a path-wise comparison so we get::
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:param paths: A list of paths to search through
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:param path: A single path to insert
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:return: An offset where 'path' can be inserted.
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:seealso: bisect.bisect_left
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if not PyList_CheckExact(paths):
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raise TypeError("you must pass a python list for 'paths' not: %s %r"
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% (type(paths), paths))
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if not PyString_CheckExact(path):
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raise TypeError("you must pass a string for 'path' not: %s %r"
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% (type(path), path))
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path_cstr = PyString_AsString(path)
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path_size = PyString_Size(path)
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_mid = (_lo + _hi) / 2
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cur = PyList_GetItem_object_void(paths, _mid)
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cur_cstr = PyString_AS_STRING_void(cur)
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cur_size = PyString_GET_SIZE_void(cur)
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if _cmp_path_by_dirblock_intern(cur_cstr, cur_size,
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path_cstr, path_size) < 0:
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def _bisect_path_right(paths, path):
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"""Return the index where to insert path into paths.
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This uses a path-wise comparison so we get::
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:param paths: A list of paths to search through
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:param path: A single path to insert
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:return: An offset where 'path' can be inserted.
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:seealso: bisect.bisect_right
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if not PyList_CheckExact(paths):
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raise TypeError("you must pass a python list for 'paths' not: %s %r"
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% (type(paths), paths))
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if not PyString_CheckExact(path):
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raise TypeError("you must pass a string for 'path' not: %s %r"
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% (type(path), path))
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path_cstr = PyString_AsString(path)
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path_size = PyString_Size(path)
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_mid = (_lo + _hi) / 2
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cur = PyList_GetItem_object_void(paths, _mid)
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cur_cstr = PyString_AS_STRING_void(cur)
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cur_size = PyString_GET_SIZE_void(cur)
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if _cmp_path_by_dirblock_intern(path_cstr, path_size,
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cur_cstr, cur_size) < 0:
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def bisect_dirblock(dirblocks, dirname, lo=0, hi=None, cache=None):
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"""Return the index where to insert dirname into the dirblocks.
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The return value idx is such that all directories blocks in dirblock[:idx]
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have names < dirname, and all blocks in dirblock[idx:] have names >=
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Optional args lo (default 0) and hi (default len(dirblocks)) bound the
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slice of a to be searched.
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cdef char *dirname_cstr
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cdef int dirname_size
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if not PyList_CheckExact(dirblocks):
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raise TypeError("you must pass a python list for 'dirblocks' not: %s %r"
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% (type(dirblocks), dirblocks))
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if not PyString_CheckExact(dirname):
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raise TypeError("you must pass a string for dirname not: %s %r"
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% (type(dirname), dirname))
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dirname_cstr = PyString_AsString(dirname)
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dirname_size = PyString_Size(dirname)
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_mid = (_lo + _hi) / 2
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# Grab the dirname for the current dirblock
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# cur = dirblocks[_mid][0]
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cur = PyTuple_GetItem_void_void(
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PyList_GetItem_object_void(dirblocks, _mid), 0)
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cur_cstr = PyString_AS_STRING_void(cur)
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cur_size = PyString_GET_SIZE_void(cur)
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if _cmp_by_dirs(cur_cstr, cur_size, dirname_cstr, dirname_size) < 0:
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"""Maintain the current location, and return fields as you parse them."""
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cdef object state # The DirState object
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cdef object text # The overall string object
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cdef char *text_cstr # Pointer to the beginning of text
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cdef int text_size # Length of text
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cdef char *end_cstr # End of text
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cdef char *cur_cstr # Pointer to the current record
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cdef char *next # Pointer to the end of this record
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def __init__(self, text, state):
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self.text_cstr = PyString_AsString(text)
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self.text_size = PyString_Size(text)
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self.end_cstr = self.text_cstr + self.text_size
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self.cur_cstr = self.text_cstr
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cdef char *get_next(self, int *size) except NULL:
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"""Return a pointer to the start of the next field."""
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cdef Py_ssize_t extra_len
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if self.cur_cstr == NULL:
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raise AssertionError('get_next() called when cur_str is NULL')
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elif self.cur_cstr >= self.end_cstr:
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raise AssertionError('get_next() called when there are no chars'
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self.cur_cstr = <char*>memchr(next, c'\0', self.end_cstr - next)
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if self.cur_cstr == NULL:
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extra_len = self.end_cstr - next
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raise errors.DirstateCorrupt(self.state,
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'failed to find trailing NULL (\\0).'
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' Trailing garbage: %r'
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% safe_string_from_size(next, extra_len))
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size[0] = self.cur_cstr - next
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self.cur_cstr = self.cur_cstr + 1
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cdef object get_next_str(self):
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"""Get the next field as a Python string."""
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next = self.get_next(&size)
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return safe_string_from_size(next, size)
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cdef int _init(self) except -1:
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"""Get the pointer ready.
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This assumes that the dirstate header has already been read, and we
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already have the dirblock string loaded into memory.
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This just initializes our memory pointers, etc for parsing of the
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# The first field should be an empty string left over from the Header
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first = self.get_next(&size)
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if first[0] != c'\0' and size == 0:
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raise AssertionError('First character should be null not: %s'
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cdef object _get_entry(self, int num_trees, void **p_current_dirname,
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"""Extract the next entry.
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This parses the next entry based on the current location in
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Each entry can be considered a "row" in the total table. And each row
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has a fixed number of columns. It is generally broken up into "key"
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columns, then "current" columns, and then "parent" columns.
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:param num_trees: How many parent trees need to be parsed
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:param p_current_dirname: A pointer to the current PyString
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representing the directory name.
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We pass this in as a void * so that pyrex doesn't have to
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increment/decrement the PyObject reference counter for each
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We use a pointer so that _get_entry can update it with the new
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:param new_block: This is to let the caller know that it needs to
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create a new directory block to store the next entry.
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cdef StaticTuple path_name_file_id_key
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cdef char *entry_size_cstr
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cdef unsigned long int entry_size
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cdef char* executable_cstr
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cdef int is_executable
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cdef char* dirname_cstr
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cdef object fingerprint
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# Read the 'key' information (dirname, name, file_id)
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dirname_cstr = self.get_next(&cur_size)
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# Check to see if we have started a new directory block.
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# If so, then we need to create a new dirname PyString, so that it can
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# be used in all of the tuples. This saves time and memory, by re-using
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# the same object repeatedly.
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# Do the cheap 'length of string' check first. If the string is a
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# different length, then we *have* to be a different directory.
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if (cur_size != PyString_GET_SIZE_void(p_current_dirname[0])
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or strncmp(dirname_cstr,
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# Extract the char* from our current dirname string. We
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# know it is a PyString, so we can use
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# PyString_AS_STRING, we use the _void version because
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# we are tricking Pyrex by using a void* rather than an
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PyString_AS_STRING_void(p_current_dirname[0]),
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dirname = safe_string_from_size(dirname_cstr, cur_size)
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p_current_dirname[0] = <void*>dirname
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# Build up the key that will be used.
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# By using <object>(void *) Pyrex will automatically handle the
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# Py_INCREF that we need.
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cur_dirname = <object>p_current_dirname[0]
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# Use StaticTuple_New to pre-allocate, rather than creating a regular
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# tuple and passing it to the StaticTuple constructor.
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# path_name_file_id_key = StaticTuple(<object>p_current_dirname[0],
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# self.get_next_str(),
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# self.get_next_str(),
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tmp = StaticTuple_New(3)
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Py_INCREF(cur_dirname); StaticTuple_SET_ITEM(tmp, 0, cur_dirname)
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cur_basename = self.get_next_str()
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cur_file_id = self.get_next_str()
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Py_INCREF(cur_basename); StaticTuple_SET_ITEM(tmp, 1, cur_basename)
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Py_INCREF(cur_file_id); StaticTuple_SET_ITEM(tmp, 2, cur_file_id)
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path_name_file_id_key = tmp
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# Parse all of the per-tree information. current has the information in
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# the same location as parent trees. The only difference is that 'info'
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# is a 'packed_stat' for current, while it is a 'revision_id' for
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# minikind, fingerprint, and info will be returned as regular python
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# entry_size and is_executable will be parsed into a python Long and
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# python Boolean, respectively.
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# TODO: jam 20070718 Consider changin the entry_size conversion to
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# prefer python Int when possible. They are generally faster to
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# work with, and it will be rare that we have a file >2GB.
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# Especially since this code is pretty much fixed at a max of
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for i from 0 <= i < num_trees:
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minikind = self.get_next_str()
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fingerprint = self.get_next_str()
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entry_size_cstr = self.get_next(&cur_size)
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entry_size = strtoul(entry_size_cstr, NULL, 10)
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executable_cstr = self.get_next(&cur_size)
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is_executable = (executable_cstr[0] == c'y')
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info = self.get_next_str()
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# TODO: If we want to use StaticTuple_New here we need to be pretty
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# careful. We are relying on a bit of Pyrex
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# automatic-conversion from 'int' to PyInt, and that doesn't
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# play well with the StaticTuple_SET_ITEM macro.
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# Timing doesn't (yet) show a worthwile improvement in speed
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# versus complexity and maintainability.
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# tmp = StaticTuple_New(5)
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# Py_INCREF(minikind); StaticTuple_SET_ITEM(tmp, 0, minikind)
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# Py_INCREF(fingerprint); StaticTuple_SET_ITEM(tmp, 1, fingerprint)
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# Py_INCREF(entry_size); StaticTuple_SET_ITEM(tmp, 2, entry_size)
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# Py_INCREF(is_executable); StaticTuple_SET_ITEM(tmp, 3, is_executable)
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# Py_INCREF(info); StaticTuple_SET_ITEM(tmp, 4, info)
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# PyList_Append(trees, tmp)
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PyList_Append(trees, StaticTuple(
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fingerprint, # fingerprint
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is_executable,# executable
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info, # packed_stat or revision_id
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# The returned tuple is (key, [trees])
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ret = (path_name_file_id_key, trees)
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# Ignore the trailing newline, but assert that it does exist, this
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# ensures that we always finish parsing a line on an end-of-entry
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trailing = self.get_next(&cur_size)
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if cur_size != 1 or trailing[0] != c'\n':
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raise errors.DirstateCorrupt(self.state,
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'Bad parse, we expected to end on \\n, not: %d %s: %s'
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% (cur_size, safe_string_from_size(trailing, cur_size),
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def _parse_dirblocks(self):
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"""Parse all dirblocks in the state file."""
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cdef object current_block
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cdef void * current_dirname
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cdef int expected_entry_count
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num_trees = self.state._num_present_parents() + 1
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expected_entry_count = self.state._num_entries
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# Ignore the first record
747
dirblocks = [('', current_block), ('', [])]
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self.state._dirblocks = dirblocks
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current_dirname = <void*>obj
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# TODO: jam 2007-05-07 Consider pre-allocating some space for the
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# members, and then growing and shrinking from there. If most
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# directories have close to 10 entries in them, it would save a
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# few mallocs if we default our list size to something
758
# reasonable. Or we could malloc it to something large (100 or
759
# so), and then truncate. That would give us a malloc + realloc,
760
# rather than lots of reallocs.
761
while self.cur_cstr < self.end_cstr:
762
entry = self._get_entry(num_trees, ¤t_dirname, &new_block)
764
# new block - different dirname
766
PyList_Append(dirblocks,
767
(<object>current_dirname, current_block))
768
PyList_Append(current_block, entry)
769
entry_count = entry_count + 1
770
if entry_count != expected_entry_count:
771
raise errors.DirstateCorrupt(self.state,
772
'We read the wrong number of entries.'
773
' We expected to read %s, but read %s'
774
% (expected_entry_count, entry_count))
775
self.state._split_root_dirblock_into_contents()
778
def _read_dirblocks(state):
779
"""Read in the dirblocks for the given DirState object.
781
This is tightly bound to the DirState internal representation. It should be
782
thought of as a member function, which is only separated out so that we can
783
re-write it in pyrex.
785
:param state: A DirState object.
787
:postcondition: The dirblocks will be loaded into the appropriate fields in
790
state._state_file.seek(state._end_of_header)
791
text = state._state_file.read()
792
# TODO: check the crc checksums. crc_measured = zlib.crc32(text)
794
reader = Reader(text, state)
796
reader._parse_dirblocks()
797
state._dirblock_state = DirState.IN_MEMORY_UNMODIFIED
800
cdef int minikind_from_mode(int mode): # cannot_raise
801
# in order of frequency:
811
_encode = binascii.b2a_base64
814
from struct import pack
815
cdef _pack_stat(stat_value):
816
"""return a string representing the stat value's key fields.
818
:param stat_value: A stat oject with st_size, st_mtime, st_ctime, st_dev,
819
st_ino and st_mode fields.
821
cdef char result[6*4] # 6 long ints
823
aliased = <int *>result
824
aliased[0] = htonl(stat_value.st_size)
825
aliased[1] = htonl(int(stat_value.st_mtime))
826
aliased[2] = htonl(int(stat_value.st_ctime))
827
aliased[3] = htonl(stat_value.st_dev)
828
aliased[4] = htonl(stat_value.st_ino & 0xFFFFFFFF)
829
aliased[5] = htonl(stat_value.st_mode)
830
packed = PyString_FromStringAndSize(result, 6*4)
831
return _encode(packed)[:-1]
834
def update_entry(self, entry, abspath, stat_value):
835
"""Update the entry based on what is actually on disk.
837
This function only calculates the sha if it needs to - if the entry is
838
uncachable, or clearly different to the first parent's entry, no sha
839
is calculated, and None is returned.
841
:param entry: This is the dirblock entry for the file in question.
842
:param abspath: The path on disk for this file.
843
:param stat_value: (optional) if we already have done a stat on the
845
:return: None, or The sha1 hexdigest of the file (40 bytes) or link
848
return _update_entry(self, entry, abspath, stat_value)
851
cdef _update_entry(self, entry, abspath, stat_value):
852
"""Update the entry based on what is actually on disk.
854
This function only calculates the sha if it needs to - if the entry is
855
uncachable, or clearly different to the first parent's entry, no sha
856
is calculated, and None is returned.
858
:param self: The dirstate object this is operating on.
859
:param entry: This is the dirblock entry for the file in question.
860
:param abspath: The path on disk for this file.
861
:param stat_value: The stat value done on the path.
862
:return: None, or The sha1 hexdigest of the file (40 bytes) or link
865
# TODO - require pyrex 0.9.8, then use a pyd file to define access to the
866
# _st mode of the compiled stat objects.
867
cdef int minikind, saved_minikind
869
minikind = minikind_from_mode(stat_value.st_mode)
872
packed_stat = _pack_stat(stat_value)
873
details = PyList_GetItem_void_void(PyTuple_GetItem_void_void(<void *>entry, 1), 0)
874
saved_minikind = PyString_AsString_obj(<PyObject *>PyTuple_GetItem_void_void(details, 0))[0]
875
if minikind == c'd' and saved_minikind == c't':
877
saved_link_or_sha1 = PyTuple_GetItem_void_object(details, 1)
878
saved_file_size = PyTuple_GetItem_void_object(details, 2)
879
saved_executable = PyTuple_GetItem_void_object(details, 3)
880
saved_packed_stat = PyTuple_GetItem_void_object(details, 4)
881
# Deal with pyrex decrefing the objects
882
Py_INCREF(saved_link_or_sha1)
883
Py_INCREF(saved_file_size)
884
Py_INCREF(saved_executable)
885
Py_INCREF(saved_packed_stat)
886
#(saved_minikind, saved_link_or_sha1, saved_file_size,
887
# saved_executable, saved_packed_stat) = entry[1][0]
889
if (minikind == saved_minikind
890
and packed_stat == saved_packed_stat):
891
# The stat hasn't changed since we saved, so we can re-use the
896
# size should also be in packed_stat
897
if saved_file_size == stat_value.st_size:
898
return saved_link_or_sha1
900
# If we have gotten this far, that means that we need to actually
901
# process this entry.
904
executable = self._is_executable(stat_value.st_mode,
906
if self._cutoff_time is None:
907
self._sha_cutoff_time()
908
if (stat_value.st_mtime < self._cutoff_time
909
and stat_value.st_ctime < self._cutoff_time
910
and len(entry[1]) > 1
911
and entry[1][1][0] != 'a'):
912
# Could check for size changes for further optimised
913
# avoidance of sha1's. However the most prominent case of
914
# over-shaing is during initial add, which this catches.
915
link_or_sha1 = self._sha1_file(abspath)
916
entry[1][0] = ('f', link_or_sha1, stat_value.st_size,
917
executable, packed_stat)
919
entry[1][0] = ('f', '', stat_value.st_size,
920
executable, DirState.NULLSTAT)
921
elif minikind == c'd':
923
entry[1][0] = ('d', '', 0, False, packed_stat)
924
if saved_minikind != c'd':
925
# This changed from something into a directory. Make sure we
926
# have a directory block for it. This doesn't happen very
927
# often, so this doesn't have to be super fast.
928
block_index, entry_index, dir_present, file_present = \
929
self._get_block_entry_index(entry[0][0], entry[0][1], 0)
930
self._ensure_block(block_index, entry_index,
931
pathjoin(entry[0][0], entry[0][1]))
932
elif minikind == c'l':
933
link_or_sha1 = self._read_link(abspath, saved_link_or_sha1)
934
if self._cutoff_time is None:
935
self._sha_cutoff_time()
936
if (stat_value.st_mtime < self._cutoff_time
937
and stat_value.st_ctime < self._cutoff_time):
938
entry[1][0] = ('l', link_or_sha1, stat_value.st_size,
941
entry[1][0] = ('l', '', stat_value.st_size,
942
False, DirState.NULLSTAT)
943
self._dirblock_state = DirState.IN_MEMORY_MODIFIED
947
# TODO: Do we want to worry about exceptions here?
948
cdef char _minikind_from_string(object string) except? -1:
949
"""Convert a python string to a char."""
950
return PyString_AsString(string)[0]
953
cdef object _kind_absent
954
cdef object _kind_file
955
cdef object _kind_directory
956
cdef object _kind_symlink
957
cdef object _kind_relocated
958
cdef object _kind_tree_reference
959
_kind_absent = "absent"
961
_kind_directory = "directory"
962
_kind_symlink = "symlink"
963
_kind_relocated = "relocated"
964
_kind_tree_reference = "tree-reference"
967
cdef object _minikind_to_kind(char minikind):
968
"""Create a string kind for minikind."""
969
cdef char _minikind[1]
972
elif minikind == c'd':
973
return _kind_directory
974
elif minikind == c'a':
976
elif minikind == c'r':
977
return _kind_relocated
978
elif minikind == c'l':
980
elif minikind == c't':
981
return _kind_tree_reference
982
_minikind[0] = minikind
983
raise KeyError(PyString_FromStringAndSize(_minikind, 1))
986
cdef int _versioned_minikind(char minikind): # cannot_raise
987
"""Return non-zero if minikind is in fltd"""
988
return (minikind == c'f' or
994
cdef class ProcessEntryC:
996
cdef int doing_consistency_expansion
997
cdef object old_dirname_to_file_id # dict
998
cdef object new_dirname_to_file_id # dict
999
cdef object last_source_parent
1000
cdef object last_target_parent
1001
cdef int include_unchanged
1003
cdef object use_filesystem_for_exec
1004
cdef object utf8_decode
1005
cdef readonly object searched_specific_files
1006
cdef readonly object searched_exact_paths
1007
cdef object search_specific_files
1008
# The parents up to the root of the paths we are searching.
1009
# After all normal paths are returned, these specific items are returned.
1010
cdef object search_specific_file_parents
1012
# Current iteration variables:
1013
cdef object current_root
1014
cdef object current_root_unicode
1015
cdef object root_entries
1016
cdef int root_entries_pos, root_entries_len
1017
cdef object root_abspath
1018
cdef int source_index, target_index
1019
cdef int want_unversioned
1021
cdef object dir_iterator
1022
cdef int block_index
1023
cdef object current_block
1024
cdef int current_block_pos
1025
cdef object current_block_list
1026
cdef object current_dir_info
1027
cdef object current_dir_list
1028
cdef object _pending_consistent_entries # list
1030
cdef object root_dir_info
1031
cdef object bisect_left
1032
cdef object pathjoin
1034
# A set of the ids we've output when doing partial output.
1035
cdef object seen_ids
1036
cdef object sha_file
1038
def __init__(self, include_unchanged, use_filesystem_for_exec,
1039
search_specific_files, state, source_index, target_index,
1040
want_unversioned, tree):
1041
self.doing_consistency_expansion = 0
1042
self.old_dirname_to_file_id = {}
1043
self.new_dirname_to_file_id = {}
1044
# Are we doing a partial iter_changes?
1045
self.partial = set(['']).__ne__(search_specific_files)
1046
# Using a list so that we can access the values and change them in
1047
# nested scope. Each one is [path, file_id, entry]
1048
self.last_source_parent = [None, None]
1049
self.last_target_parent = [None, None]
1050
if include_unchanged is None:
1051
self.include_unchanged = False
1053
self.include_unchanged = int(include_unchanged)
1054
self.use_filesystem_for_exec = use_filesystem_for_exec
1055
self.utf8_decode = cache_utf8._utf8_decode
1056
# for all search_indexs in each path at or under each element of
1057
# search_specific_files, if the detail is relocated: add the id, and
1058
# add the relocated path as one to search if its not searched already.
1059
# If the detail is not relocated, add the id.
1060
self.searched_specific_files = set()
1061
# When we search exact paths without expanding downwards, we record
1063
self.searched_exact_paths = set()
1064
self.search_specific_files = search_specific_files
1065
# The parents up to the root of the paths we are searching.
1066
# After all normal paths are returned, these specific items are returned.
1067
self.search_specific_file_parents = set()
1068
# The ids we've sent out in the delta.
1069
self.seen_ids = set()
1071
self.current_root = None
1072
self.current_root_unicode = None
1073
self.root_entries = None
1074
self.root_entries_pos = 0
1075
self.root_entries_len = 0
1076
self.root_abspath = None
1077
if source_index is None:
1078
self.source_index = -1
1080
self.source_index = source_index
1081
self.target_index = target_index
1082
self.want_unversioned = want_unversioned
1084
self.dir_iterator = None
1085
self.block_index = -1
1086
self.current_block = None
1087
self.current_block_list = None
1088
self.current_block_pos = -1
1089
self.current_dir_info = None
1090
self.current_dir_list = None
1091
self._pending_consistent_entries = []
1093
self.root_dir_info = None
1094
self.bisect_left = bisect.bisect_left
1095
self.pathjoin = osutils.pathjoin
1096
self.fstat = os.fstat
1097
self.sha_file = osutils.sha_file
1098
if target_index != 0:
1099
# A lot of code in here depends on target_index == 0
1100
raise errors.BzrError('unsupported target index')
1102
cdef _process_entry(self, entry, path_info):
1103
"""Compare an entry and real disk to generate delta information.
1105
:param path_info: top_relpath, basename, kind, lstat, abspath for
1106
the path of entry. If None, then the path is considered absent in
1107
the target (Perhaps we should pass in a concrete entry for this ?)
1108
Basename is returned as a utf8 string because we expect this
1109
tuple will be ignored, and don't want to take the time to
1111
:return: (iter_changes_result, changed). If the entry has not been
1112
handled then changed is None. Otherwise it is False if no content
1113
or metadata changes have occured, and True if any content or
1114
metadata change has occurred. If self.include_unchanged is True then
1115
if changed is not None, iter_changes_result will always be a result
1116
tuple. Otherwise, iter_changes_result is None unless changed is
1119
cdef char target_minikind
1120
cdef char source_minikind
1122
cdef int content_change
1123
cdef object details_list
1125
details_list = entry[1]
1126
if -1 == self.source_index:
1127
source_details = DirState.NULL_PARENT_DETAILS
1129
source_details = details_list[self.source_index]
1130
target_details = details_list[self.target_index]
1131
target_minikind = _minikind_from_string(target_details[0])
1132
if path_info is not None and _versioned_minikind(target_minikind):
1133
if self.target_index != 0:
1134
raise AssertionError("Unsupported target index %d" %
1136
link_or_sha1 = _update_entry(self.state, entry, path_info[4], path_info[3])
1137
# The entry may have been modified by update_entry
1138
target_details = details_list[self.target_index]
1139
target_minikind = _minikind_from_string(target_details[0])
1142
# the rest of this function is 0.3 seconds on 50K paths, or
1143
# 0.000006 seconds per call.
1144
source_minikind = _minikind_from_string(source_details[0])
1145
if ((_versioned_minikind(source_minikind) or source_minikind == c'r')
1146
and _versioned_minikind(target_minikind)):
1147
# claimed content in both: diff
1148
# r | fdlt | | add source to search, add id path move and perform
1149
# | | | diff check on source-target
1150
# r | fdlt | a | dangling file that was present in the basis.
1152
if source_minikind != c'r':
1153
old_dirname = entry[0][0]
1154
old_basename = entry[0][1]
1155
old_path = path = None
1157
# add the source to the search path to find any children it
1158
# has. TODO ? : only add if it is a container ?
1159
if (not self.doing_consistency_expansion and
1160
not osutils.is_inside_any(self.searched_specific_files,
1161
source_details[1])):
1162
self.search_specific_files.add(source_details[1])
1163
# expanding from a user requested path, parent expansion
1164
# for delta consistency happens later.
1165
# generate the old path; this is needed for stating later
1167
old_path = source_details[1]
1168
old_dirname, old_basename = os.path.split(old_path)
1169
path = self.pathjoin(entry[0][0], entry[0][1])
1170
old_entry = self.state._get_entry(self.source_index,
1172
# update the source details variable to be the real
1174
if old_entry == (None, None):
1175
raise errors.CorruptDirstate(self.state._filename,
1176
"entry '%s/%s' is considered renamed from %r"
1177
" but source does not exist\n"
1178
"entry: %s" % (entry[0][0], entry[0][1], old_path, entry))
1179
source_details = old_entry[1][self.source_index]
1180
source_minikind = _minikind_from_string(source_details[0])
1181
if path_info is None:
1182
# the file is missing on disk, show as removed.
1187
# source and target are both versioned and disk file is present.
1188
target_kind = path_info[2]
1189
if target_kind == 'directory':
1191
old_path = path = self.pathjoin(old_dirname, old_basename)
1192
file_id = entry[0][2]
1193
self.new_dirname_to_file_id[path] = file_id
1194
if source_minikind != c'd':
1197
# directories have no fingerprint
1200
elif target_kind == 'file':
1201
if source_minikind != c'f':
1204
# Check the sha. We can't just rely on the size as
1205
# content filtering may mean differ sizes actually
1206
# map to the same content
1207
if link_or_sha1 is None:
1209
statvalue, link_or_sha1 = \
1210
self.state._sha1_provider.stat_and_sha1(
1212
self.state._observed_sha1(entry, link_or_sha1,
1214
content_change = (link_or_sha1 != source_details[1])
1215
# Target details is updated at update_entry time
1216
if self.use_filesystem_for_exec:
1217
# We don't need S_ISREG here, because we are sure
1218
# we are dealing with a file.
1219
target_exec = bool(S_IXUSR & path_info[3].st_mode)
1221
target_exec = target_details[3]
1222
elif target_kind == 'symlink':
1223
if source_minikind != c'l':
1226
content_change = (link_or_sha1 != source_details[1])
1228
elif target_kind == 'tree-reference':
1229
if source_minikind != c't':
1236
path = self.pathjoin(old_dirname, old_basename)
1237
raise errors.BadFileKindError(path, path_info[2])
1238
if source_minikind == c'd':
1240
old_path = path = self.pathjoin(old_dirname, old_basename)
1242
file_id = entry[0][2]
1243
self.old_dirname_to_file_id[old_path] = file_id
1244
# parent id is the entry for the path in the target tree
1245
if old_basename and old_dirname == self.last_source_parent[0]:
1246
# use a cached hit for non-root source entries.
1247
source_parent_id = self.last_source_parent[1]
1250
source_parent_id = self.old_dirname_to_file_id[old_dirname]
1252
source_parent_entry = self.state._get_entry(self.source_index,
1253
path_utf8=old_dirname)
1254
source_parent_id = source_parent_entry[0][2]
1255
if source_parent_id == entry[0][2]:
1256
# This is the root, so the parent is None
1257
source_parent_id = None
1259
self.last_source_parent[0] = old_dirname
1260
self.last_source_parent[1] = source_parent_id
1261
new_dirname = entry[0][0]
1262
if entry[0][1] and new_dirname == self.last_target_parent[0]:
1263
# use a cached hit for non-root target entries.
1264
target_parent_id = self.last_target_parent[1]
1267
target_parent_id = self.new_dirname_to_file_id[new_dirname]
1269
# TODO: We don't always need to do the lookup, because the
1270
# parent entry will be the same as the source entry.
1271
target_parent_entry = self.state._get_entry(self.target_index,
1272
path_utf8=new_dirname)
1273
if target_parent_entry == (None, None):
1274
raise AssertionError(
1275
"Could not find target parent in wt: %s\nparent of: %s"
1276
% (new_dirname, entry))
1277
target_parent_id = target_parent_entry[0][2]
1278
if target_parent_id == entry[0][2]:
1279
# This is the root, so the parent is None
1280
target_parent_id = None
1282
self.last_target_parent[0] = new_dirname
1283
self.last_target_parent[1] = target_parent_id
1285
source_exec = source_details[3]
1286
changed = (content_change
1287
or source_parent_id != target_parent_id
1288
or old_basename != entry[0][1]
1289
or source_exec != target_exec
1291
if not changed and not self.include_unchanged:
1294
if old_path is None:
1295
path = self.pathjoin(old_dirname, old_basename)
1297
old_path_u = self.utf8_decode(old_path)[0]
1300
old_path_u = self.utf8_decode(old_path)[0]
1301
if old_path == path:
1304
path_u = self.utf8_decode(path)[0]
1305
source_kind = _minikind_to_kind(source_minikind)
1306
return (entry[0][2],
1307
(old_path_u, path_u),
1310
(source_parent_id, target_parent_id),
1311
(self.utf8_decode(old_basename)[0], self.utf8_decode(entry[0][1])[0]),
1312
(source_kind, target_kind),
1313
(source_exec, target_exec)), changed
1314
elif source_minikind == c'a' and _versioned_minikind(target_minikind):
1315
# looks like a new file
1316
path = self.pathjoin(entry[0][0], entry[0][1])
1317
# parent id is the entry for the path in the target tree
1318
# TODO: these are the same for an entire directory: cache em.
1319
parent_entry = self.state._get_entry(self.target_index,
1320
path_utf8=entry[0][0])
1321
if parent_entry is None:
1322
raise errors.DirstateCorrupt(self.state,
1323
"We could not find the parent entry in index %d"
1324
" for the entry: %s"
1325
% (self.target_index, entry[0]))
1326
parent_id = parent_entry[0][2]
1327
if parent_id == entry[0][2]:
1329
if path_info is not None:
1331
if self.use_filesystem_for_exec:
1332
# We need S_ISREG here, because we aren't sure if this
1335
S_ISREG(path_info[3].st_mode)
1336
and S_IXUSR & path_info[3].st_mode)
1338
target_exec = target_details[3]
1339
return (entry[0][2],
1340
(None, self.utf8_decode(path)[0]),
1344
(None, self.utf8_decode(entry[0][1])[0]),
1345
(None, path_info[2]),
1346
(None, target_exec)), True
1348
# Its a missing file, report it as such.
1349
return (entry[0][2],
1350
(None, self.utf8_decode(path)[0]),
1354
(None, self.utf8_decode(entry[0][1])[0]),
1356
(None, False)), True
1357
elif _versioned_minikind(source_minikind) and target_minikind == c'a':
1358
# unversioned, possibly, or possibly not deleted: we dont care.
1359
# if its still on disk, *and* theres no other entry at this
1360
# path [we dont know this in this routine at the moment -
1361
# perhaps we should change this - then it would be an unknown.
1362
old_path = self.pathjoin(entry[0][0], entry[0][1])
1363
# parent id is the entry for the path in the target tree
1364
parent_id = self.state._get_entry(self.source_index, path_utf8=entry[0][0])[0][2]
1365
if parent_id == entry[0][2]:
1367
return (entry[0][2],
1368
(self.utf8_decode(old_path)[0], None),
1372
(self.utf8_decode(entry[0][1])[0], None),
1373
(_minikind_to_kind(source_minikind), None),
1374
(source_details[3], None)), True
1375
elif _versioned_minikind(source_minikind) and target_minikind == c'r':
1376
# a rename; could be a true rename, or a rename inherited from
1377
# a renamed parent. TODO: handle this efficiently. Its not
1378
# common case to rename dirs though, so a correct but slow
1379
# implementation will do.
1380
if (not self.doing_consistency_expansion and
1381
not osutils.is_inside_any(self.searched_specific_files,
1382
target_details[1])):
1383
self.search_specific_files.add(target_details[1])
1384
# We don't expand the specific files parents list here as
1385
# the path is absent in target and won't create a delta with
1387
elif ((source_minikind == c'r' or source_minikind == c'a') and
1388
(target_minikind == c'r' or target_minikind == c'a')):
1389
# neither of the selected trees contain this path,
1390
# so skip over it. This is not currently directly tested, but
1391
# is indirectly via test_too_much.TestCommands.test_conflicts.
1394
raise AssertionError("don't know how to compare "
1395
"source_minikind=%r, target_minikind=%r"
1396
% (source_minikind, target_minikind))
1397
## import pdb;pdb.set_trace()
1403
def iter_changes(self):
1406
cdef int _gather_result_for_consistency(self, result) except -1:
1407
"""Check a result we will yield to make sure we are consistent later.
1409
This gathers result's parents into a set to output later.
1411
:param result: A result tuple.
1413
if not self.partial or not result[0]:
1415
self.seen_ids.add(result[0])
1416
new_path = result[1][1]
1418
# Not the root and not a delete: queue up the parents of the path.
1419
self.search_specific_file_parents.update(
1420
osutils.parent_directories(new_path.encode('utf8')))
1421
# Add the root directory which parent_directories does not
1423
self.search_specific_file_parents.add('')
1426
cdef int _update_current_block(self) except -1:
1427
if (self.block_index < len(self.state._dirblocks) and
1428
osutils.is_inside(self.current_root, self.state._dirblocks[self.block_index][0])):
1429
self.current_block = self.state._dirblocks[self.block_index]
1430
self.current_block_list = self.current_block[1]
1431
self.current_block_pos = 0
1433
self.current_block = None
1434
self.current_block_list = None
1438
# Simple thunk to allow tail recursion without pyrex confusion
1439
return self._iter_next()
1441
cdef _iter_next(self):
1442
"""Iterate over the changes."""
1443
# This function single steps through an iterator. As such while loops
1444
# are often exited by 'return' - the code is structured so that the
1445
# next call into the function will return to the same while loop. Note
1446
# that all flow control needed to re-reach that step is reexecuted,
1447
# which can be a performance problem. It has not yet been tuned to
1448
# minimise this; a state machine is probably the simplest restructuring
1449
# to both minimise this overhead and make the code considerably more
1453
# compare source_index and target_index at or under each element of search_specific_files.
1454
# follow the following comparison table. Note that we only want to do diff operations when
1455
# the target is fdl because thats when the walkdirs logic will have exposed the pathinfo
1459
# Source | Target | disk | action
1460
# r | fdlt | | add source to search, add id path move and perform
1461
# | | | diff check on source-target
1462
# r | fdlt | a | dangling file that was present in the basis.
1464
# r | a | | add source to search
1466
# r | r | | this path is present in a non-examined tree, skip.
1467
# r | r | a | this path is present in a non-examined tree, skip.
1468
# a | fdlt | | add new id
1469
# a | fdlt | a | dangling locally added file, skip
1470
# a | a | | not present in either tree, skip
1471
# a | a | a | not present in any tree, skip
1472
# a | r | | not present in either tree at this path, skip as it
1473
# | | | may not be selected by the users list of paths.
1474
# a | r | a | not present in either tree at this path, skip as it
1475
# | | | may not be selected by the users list of paths.
1476
# fdlt | fdlt | | content in both: diff them
1477
# fdlt | fdlt | a | deleted locally, but not unversioned - show as deleted ?
1478
# fdlt | a | | unversioned: output deleted id for now
1479
# fdlt | a | a | unversioned and deleted: output deleted id
1480
# fdlt | r | | relocated in this tree, so add target to search.
1481
# | | | Dont diff, we will see an r,fd; pair when we reach
1482
# | | | this id at the other path.
1483
# fdlt | r | a | relocated in this tree, so add target to search.
1484
# | | | Dont diff, we will see an r,fd; pair when we reach
1485
# | | | this id at the other path.
1487
# TODO: jam 20070516 - Avoid the _get_entry lookup overhead by
1488
# keeping a cache of directories that we have seen.
1489
cdef object current_dirname, current_blockname
1490
cdef char * current_dirname_c, * current_blockname_c
1491
cdef int advance_entry, advance_path
1492
cdef int path_handled
1493
searched_specific_files = self.searched_specific_files
1494
# Are we walking a root?
1495
while self.root_entries_pos < self.root_entries_len:
1496
entry = self.root_entries[self.root_entries_pos]
1497
self.root_entries_pos = self.root_entries_pos + 1
1498
result, changed = self._process_entry(entry, self.root_dir_info)
1499
if changed is not None:
1501
self._gather_result_for_consistency(result)
1502
if changed or self.include_unchanged:
1504
# Have we finished the prior root, or never started one ?
1505
if self.current_root is None:
1506
# TODO: the pending list should be lexically sorted? the
1507
# interface doesn't require it.
1509
self.current_root = self.search_specific_files.pop()
1511
raise StopIteration()
1512
self.searched_specific_files.add(self.current_root)
1513
# process the entries for this containing directory: the rest will be
1514
# found by their parents recursively.
1515
self.root_entries = self.state._entries_for_path(self.current_root)
1516
self.root_entries_len = len(self.root_entries)
1517
self.current_root_unicode = self.current_root.decode('utf8')
1518
self.root_abspath = self.tree.abspath(self.current_root_unicode)
1520
root_stat = os.lstat(self.root_abspath)
1522
if e.errno == errno.ENOENT:
1523
# the path does not exist: let _process_entry know that.
1524
self.root_dir_info = None
1526
# some other random error: hand it up.
1529
self.root_dir_info = ('', self.current_root,
1530
osutils.file_kind_from_stat_mode(root_stat.st_mode), root_stat,
1532
if self.root_dir_info[2] == 'directory':
1533
if self.tree._directory_is_tree_reference(
1534
self.current_root_unicode):
1535
self.root_dir_info = self.root_dir_info[:2] + \
1536
('tree-reference',) + self.root_dir_info[3:]
1537
if not self.root_entries and not self.root_dir_info:
1538
# this specified path is not present at all, skip it.
1539
# (tail recursion, can do a loop once the full structure is
1541
return self._iter_next()
1543
self.root_entries_pos = 0
1544
# XXX Clarity: This loop is duplicated a out the self.current_root
1545
# is None guard above: if we return from it, it completes there
1546
# (and the following if block cannot trigger because
1547
# path_handled must be true, so the if block is not # duplicated.
1548
while self.root_entries_pos < self.root_entries_len:
1549
entry = self.root_entries[self.root_entries_pos]
1550
self.root_entries_pos = self.root_entries_pos + 1
1551
result, changed = self._process_entry(entry, self.root_dir_info)
1552
if changed is not None:
1555
self._gather_result_for_consistency(result)
1556
if changed or self.include_unchanged:
1558
# handle unversioned specified paths:
1559
if self.want_unversioned and not path_handled and self.root_dir_info:
1560
new_executable = bool(
1561
stat.S_ISREG(self.root_dir_info[3].st_mode)
1562
and stat.S_IEXEC & self.root_dir_info[3].st_mode)
1564
(None, self.current_root_unicode),
1568
(None, splitpath(self.current_root_unicode)[-1]),
1569
(None, self.root_dir_info[2]),
1570
(None, new_executable)
1572
# If we reach here, the outer flow continues, which enters into the
1573
# per-root setup logic.
1574
if (self.current_dir_info is None and self.current_block is None and not
1575
self.doing_consistency_expansion):
1576
# setup iteration of this root:
1577
self.current_dir_list = None
1578
if self.root_dir_info and self.root_dir_info[2] == 'tree-reference':
1579
self.current_dir_info = None
1581
self.dir_iterator = osutils._walkdirs_utf8(self.root_abspath,
1582
prefix=self.current_root)
1585
self.current_dir_info = self.dir_iterator.next()
1586
self.current_dir_list = self.current_dir_info[1]
1588
# there may be directories in the inventory even though
1589
# this path is not a file on disk: so mark it as end of
1591
if e.errno in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL):
1592
self.current_dir_info = None
1593
elif sys.platform == 'win32':
1594
# on win32, python2.4 has e.errno == ERROR_DIRECTORY, but
1595
# python 2.5 has e.errno == EINVAL,
1596
# and e.winerror == ERROR_DIRECTORY
1598
e_winerror = e.winerror
1599
except AttributeError, _:
1601
win_errors = (ERROR_DIRECTORY, ERROR_PATH_NOT_FOUND)
1602
if (e.errno in win_errors or e_winerror in win_errors):
1603
self.current_dir_info = None
1605
# Will this really raise the right exception ?
1610
if self.current_dir_info[0][0] == '':
1611
# remove .bzr from iteration
1612
bzr_index = self.bisect_left(self.current_dir_list, ('.bzr',))
1613
if self.current_dir_list[bzr_index][0] != '.bzr':
1614
raise AssertionError()
1615
del self.current_dir_list[bzr_index]
1616
initial_key = (self.current_root, '', '')
1617
self.block_index, _ = self.state._find_block_index_from_key(initial_key)
1618
if self.block_index == 0:
1619
# we have processed the total root already, but because the
1620
# initial key matched it we should skip it here.
1621
self.block_index = self.block_index + 1
1622
self._update_current_block()
1623
# walk until both the directory listing and the versioned metadata
1625
while (self.current_dir_info is not None
1626
or self.current_block is not None):
1627
# Uncommon case - a missing directory or an unversioned directory:
1628
if (self.current_dir_info and self.current_block
1629
and self.current_dir_info[0][0] != self.current_block[0]):
1630
# Work around pyrex broken heuristic - current_dirname has
1631
# the same scope as current_dirname_c
1632
current_dirname = self.current_dir_info[0][0]
1633
current_dirname_c = PyString_AS_STRING_void(
1634
<void *>current_dirname)
1635
current_blockname = self.current_block[0]
1636
current_blockname_c = PyString_AS_STRING_void(
1637
<void *>current_blockname)
1638
# In the python generator we evaluate this if block once per
1639
# dir+block; because we reenter in the pyrex version its being
1640
# evaluated once per path: we could cache the result before
1641
# doing the while loop and probably save time.
1642
if _cmp_by_dirs(current_dirname_c,
1643
PyString_Size(current_dirname),
1644
current_blockname_c,
1645
PyString_Size(current_blockname)) < 0:
1646
# filesystem data refers to paths not covered by the
1647
# dirblock. this has two possibilities:
1648
# A) it is versioned but empty, so there is no block for it
1649
# B) it is not versioned.
1651
# if (A) then we need to recurse into it to check for
1652
# new unknown files or directories.
1653
# if (B) then we should ignore it, because we don't
1654
# recurse into unknown directories.
1655
# We are doing a loop
1656
while self.path_index < len(self.current_dir_list):
1657
current_path_info = self.current_dir_list[self.path_index]
1658
# dont descend into this unversioned path if it is
1660
if current_path_info[2] in ('directory',
1662
del self.current_dir_list[self.path_index]
1663
self.path_index = self.path_index - 1
1664
self.path_index = self.path_index + 1
1665
if self.want_unversioned:
1666
if current_path_info[2] == 'directory':
1667
if self.tree._directory_is_tree_reference(
1668
self.utf8_decode(current_path_info[0])[0]):
1669
current_path_info = current_path_info[:2] + \
1670
('tree-reference',) + current_path_info[3:]
1671
new_executable = bool(
1672
stat.S_ISREG(current_path_info[3].st_mode)
1673
and stat.S_IEXEC & current_path_info[3].st_mode)
1675
(None, self.utf8_decode(current_path_info[0])[0]),
1679
(None, self.utf8_decode(current_path_info[1])[0]),
1680
(None, current_path_info[2]),
1681
(None, new_executable))
1682
# This dir info has been handled, go to the next
1684
self.current_dir_list = None
1686
self.current_dir_info = self.dir_iterator.next()
1687
self.current_dir_list = self.current_dir_info[1]
1688
except StopIteration, _:
1689
self.current_dir_info = None
1691
# We have a dirblock entry for this location, but there
1692
# is no filesystem path for this. This is most likely
1693
# because a directory was removed from the disk.
1694
# We don't have to report the missing directory,
1695
# because that should have already been handled, but we
1696
# need to handle all of the files that are contained
1698
while self.current_block_pos < len(self.current_block_list):
1699
current_entry = self.current_block_list[self.current_block_pos]
1700
self.current_block_pos = self.current_block_pos + 1
1701
# entry referring to file not present on disk.
1702
# advance the entry only, after processing.
1703
result, changed = self._process_entry(current_entry, None)
1704
if changed is not None:
1706
self._gather_result_for_consistency(result)
1707
if changed or self.include_unchanged:
1709
self.block_index = self.block_index + 1
1710
self._update_current_block()
1711
continue # next loop-on-block/dir
1712
result = self._loop_one_block()
1713
if result is not None:
1715
if len(self.search_specific_files):
1716
# More supplied paths to process
1717
self.current_root = None
1718
return self._iter_next()
1719
# Start expanding more conservatively, adding paths the user may not
1720
# have intended but required for consistent deltas.
1721
self.doing_consistency_expansion = 1
1722
if not self._pending_consistent_entries:
1723
self._pending_consistent_entries = self._next_consistent_entries()
1724
while self._pending_consistent_entries:
1725
result, changed = self._pending_consistent_entries.pop()
1726
if changed is not None:
1728
raise StopIteration()
1730
cdef object _maybe_tree_ref(self, current_path_info):
1731
if self.tree._directory_is_tree_reference(
1732
self.utf8_decode(current_path_info[0])[0]):
1733
return current_path_info[:2] + \
1734
('tree-reference',) + current_path_info[3:]
1736
return current_path_info
1738
cdef object _loop_one_block(self):
1739
# current_dir_info and current_block refer to the same directory -
1740
# this is the common case code.
1741
# Assign local variables for current path and entry:
1742
cdef object current_entry
1743
cdef object current_path_info
1744
cdef int path_handled
1747
# cdef char * temp_str
1748
# cdef Py_ssize_t temp_str_length
1749
# PyString_AsStringAndSize(disk_kind, &temp_str, &temp_str_length)
1750
# if not strncmp(temp_str, "directory", temp_str_length):
1751
if (self.current_block is not None and
1752
self.current_block_pos < PyList_GET_SIZE(self.current_block_list)):
1753
current_entry = PyList_GET_ITEM(self.current_block_list,
1754
self.current_block_pos)
1756
Py_INCREF(current_entry)
1758
current_entry = None
1759
if (self.current_dir_info is not None and
1760
self.path_index < PyList_GET_SIZE(self.current_dir_list)):
1761
current_path_info = PyList_GET_ITEM(self.current_dir_list,
1764
Py_INCREF(current_path_info)
1765
disk_kind = PyTuple_GET_ITEM(current_path_info, 2)
1767
Py_INCREF(disk_kind)
1768
if disk_kind == "directory":
1769
current_path_info = self._maybe_tree_ref(current_path_info)
1771
current_path_info = None
1772
while (current_entry is not None or current_path_info is not None):
1777
if current_entry is None:
1778
# unversioned - the check for path_handled when the path
1779
# is advanced will yield this path if needed.
1781
elif current_path_info is None:
1782
# no path is fine: the per entry code will handle it.
1783
result, changed = self._process_entry(current_entry,
1786
minikind = _minikind_from_string(
1787
current_entry[1][self.target_index][0])
1788
cmp_result = cmp(current_path_info[1], current_entry[0][1])
1789
if (cmp_result or minikind == c'a' or minikind == c'r'):
1790
# The current path on disk doesn't match the dirblock
1791
# record. Either the dirblock record is marked as
1792
# absent/renamed, or the file on disk is not present at all
1793
# in the dirblock. Either way, report about the dirblock
1794
# entry, and let other code handle the filesystem one.
1796
# Compare the basename for these files to determine
1799
# extra file on disk: pass for now, but only
1800
# increment the path, not the entry
1803
# entry referring to file not present on disk.
1804
# advance the entry only, after processing.
1805
result, changed = self._process_entry(current_entry,
1809
# paths are the same,and the dirstate entry is not
1810
# absent or renamed.
1811
result, changed = self._process_entry(current_entry,
1813
if changed is not None:
1815
if not changed and not self.include_unchanged:
1817
# >- loop control starts here:
1819
if advance_entry and current_entry is not None:
1820
self.current_block_pos = self.current_block_pos + 1
1821
if self.current_block_pos < PyList_GET_SIZE(self.current_block_list):
1822
current_entry = self.current_block_list[self.current_block_pos]
1824
current_entry = None
1826
if advance_path and current_path_info is not None:
1827
if not path_handled:
1828
# unversioned in all regards
1829
if self.want_unversioned:
1830
new_executable = bool(
1831
stat.S_ISREG(current_path_info[3].st_mode)
1832
and stat.S_IEXEC & current_path_info[3].st_mode)
1834
relpath_unicode = self.utf8_decode(current_path_info[0])[0]
1835
except UnicodeDecodeError, _:
1836
raise errors.BadFilenameEncoding(
1837
current_path_info[0], osutils._fs_enc)
1838
if changed is not None:
1839
raise AssertionError(
1840
"result is not None: %r" % result)
1842
(None, relpath_unicode),
1846
(None, self.utf8_decode(current_path_info[1])[0]),
1847
(None, current_path_info[2]),
1848
(None, new_executable))
1850
# dont descend into this unversioned path if it is
1852
if current_path_info[2] in ('directory'):
1853
del self.current_dir_list[self.path_index]
1854
self.path_index = self.path_index - 1
1855
# dont descend the disk iterator into any tree
1857
if current_path_info[2] == 'tree-reference':
1858
del self.current_dir_list[self.path_index]
1859
self.path_index = self.path_index - 1
1860
self.path_index = self.path_index + 1
1861
if self.path_index < len(self.current_dir_list):
1862
current_path_info = self.current_dir_list[self.path_index]
1863
if current_path_info[2] == 'directory':
1864
current_path_info = self._maybe_tree_ref(
1867
current_path_info = None
1868
if changed is not None:
1869
# Found a result on this pass, yield it
1871
self._gather_result_for_consistency(result)
1872
if changed or self.include_unchanged:
1874
if self.current_block is not None:
1875
self.block_index = self.block_index + 1
1876
self._update_current_block()
1877
if self.current_dir_info is not None:
1879
self.current_dir_list = None
1881
self.current_dir_info = self.dir_iterator.next()
1882
self.current_dir_list = self.current_dir_info[1]
1883
except StopIteration, _:
1884
self.current_dir_info = None
1886
cdef object _next_consistent_entries(self):
1887
"""Grabs the next specific file parent case to consider.
1889
:return: A list of the results, each of which is as for _process_entry.
1892
while self.search_specific_file_parents:
1893
# Process the parent directories for the paths we were iterating.
1894
# Even in extremely large trees this should be modest, so currently
1895
# no attempt is made to optimise.
1896
path_utf8 = self.search_specific_file_parents.pop()
1897
if path_utf8 in self.searched_exact_paths:
1898
# We've examined this path.
1900
if osutils.is_inside_any(self.searched_specific_files, path_utf8):
1901
# We've examined this path.
1903
path_entries = self.state._entries_for_path(path_utf8)
1904
# We need either one or two entries. If the path in
1905
# self.target_index has moved (so the entry in source_index is in
1906
# 'ar') then we need to also look for the entry for this path in
1907
# self.source_index, to output the appropriate delete-or-rename.
1908
selected_entries = []
1910
for candidate_entry in path_entries:
1911
# Find entries present in target at this path:
1912
if candidate_entry[1][self.target_index][0] not in 'ar':
1914
selected_entries.append(candidate_entry)
1915
# Find entries present in source at this path:
1916
elif (self.source_index is not None and
1917
candidate_entry[1][self.source_index][0] not in 'ar'):
1919
if candidate_entry[1][self.target_index][0] == 'a':
1920
# Deleted, emit it here.
1921
selected_entries.append(candidate_entry)
1923
# renamed, emit it when we process the directory it
1925
self.search_specific_file_parents.add(
1926
candidate_entry[1][self.target_index][1])
1928
raise AssertionError(
1929
"Missing entry for specific path parent %r, %r" % (
1930
path_utf8, path_entries))
1931
path_info = self._path_info(path_utf8, path_utf8.decode('utf8'))
1932
for entry in selected_entries:
1933
if entry[0][2] in self.seen_ids:
1935
result, changed = self._process_entry(entry, path_info)
1937
raise AssertionError(
1938
"Got entry<->path mismatch for specific path "
1939
"%r entry %r path_info %r " % (
1940
path_utf8, entry, path_info))
1941
# Only include changes - we're outside the users requested
1944
self._gather_result_for_consistency(result)
1945
if (result[6][0] == 'directory' and
1946
result[6][1] != 'directory'):
1947
# This stopped being a directory, the old children have
1949
if entry[1][self.source_index][0] == 'r':
1950
# renamed, take the source path
1951
entry_path_utf8 = entry[1][self.source_index][1]
1953
entry_path_utf8 = path_utf8
1954
initial_key = (entry_path_utf8, '', '')
1955
block_index, _ = self.state._find_block_index_from_key(
1957
if block_index == 0:
1958
# The children of the root are in block index 1.
1959
block_index = block_index + 1
1960
current_block = None
1961
if block_index < len(self.state._dirblocks):
1962
current_block = self.state._dirblocks[block_index]
1963
if not osutils.is_inside(
1964
entry_path_utf8, current_block[0]):
1965
# No entries for this directory at all.
1966
current_block = None
1967
if current_block is not None:
1968
for entry in current_block[1]:
1969
if entry[1][self.source_index][0] in 'ar':
1970
# Not in the source tree, so doesn't have to be
1973
# Path of the entry itself.
1974
self.search_specific_file_parents.add(
1975
self.pathjoin(*entry[0][:2]))
1976
if changed or self.include_unchanged:
1977
results.append((result, changed))
1978
self.searched_exact_paths.add(path_utf8)
1981
cdef object _path_info(self, utf8_path, unicode_path):
1982
"""Generate path_info for unicode_path.
1984
:return: None if unicode_path does not exist, or a path_info tuple.
1986
abspath = self.tree.abspath(unicode_path)
1988
stat = os.lstat(abspath)
1990
if e.errno == errno.ENOENT:
1991
# the path does not exist.
1995
utf8_basename = utf8_path.rsplit('/', 1)[-1]
1996
dir_info = (utf8_path, utf8_basename,
1997
osutils.file_kind_from_stat_mode(stat.st_mode), stat,
1999
if dir_info[2] == 'directory':
2000
if self.tree._directory_is_tree_reference(
2002
self.root_dir_info = self.root_dir_info[:2] + \
2003
('tree-reference',) + self.root_dir_info[3:]
added
removed
bzrlib/_dirstate_helpers_pyx.pyx
