1
# Copyright (C) 2007, 2008 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
"""Helper functions for DirState.
19
This is the python implementation for DirState functions.
29
from bzrlib import cache_utf8, errors, osutils
30
from bzrlib.dirstate import DirState
31
from bzrlib.osutils import parent_directories, pathjoin, splitpath
34
# This is the Windows equivalent of ENOTDIR
35
# It is defined in pywin32.winerror, but we don't want a strong dependency for
37
# XXX: Perhaps we could get it from a windows header ?
38
cdef int ERROR_PATH_NOT_FOUND
39
ERROR_PATH_NOT_FOUND = 3
40
cdef int ERROR_DIRECTORY
43
#python2.4 support, and other platform-dependent includes
44
cdef extern from "python-compat.h":
45
unsigned long htonl(unsigned long)
47
# Give Pyrex some function definitions for it to understand.
48
# All of these are just hints to Pyrex, so that it can try to convert python
49
# objects into similar C objects. (such as PyInt => int).
50
# In anything defined 'cdef extern from XXX' the real C header will be
51
# imported, and the real definition will be used from there. So these are just
52
# hints, and do not need to match exactly to the C definitions.
55
ctypedef unsigned long size_t
57
cdef extern from "_dirstate_helpers_pyx.h":
62
cdef extern from "stdlib.h":
63
unsigned long int strtoul(char *nptr, char **endptr, int base)
66
cdef extern from 'sys/stat.h':
69
# On win32, this actually comes from "python-compat.h"
73
# These functions allow us access to a bit of the 'bare metal' of python
74
# objects, rather than going through the object abstraction. (For example,
75
# PyList_Append, rather than getting the 'append' attribute of the object, and
76
# creating a tuple, and then using PyCallObject).
77
# Functions that return (or take) a void* are meant to grab a C PyObject*. This
78
# differs from the Pyrex 'object'. If you declare a variable as 'object' Pyrex
79
# will automatically Py_INCREF and Py_DECREF when appropriate. But for some
80
# inner loops, we don't need to do that at all, as the reference only lasts for
82
# Note that the C API GetItem calls borrow references, so pyrex does the wrong
83
# thing if you declare e.g. object PyList_GetItem(object lst, int index) - you
84
# need to manually Py_INCREF yourself.
85
cdef extern from "Python.h":
86
ctypedef int Py_ssize_t
87
ctypedef struct PyObject:
89
int PyList_Append(object lst, object item) except -1
90
void *PyList_GetItem_object_void "PyList_GET_ITEM" (object lst, int index)
91
void *PyList_GetItem_void_void "PyList_GET_ITEM" (void * lst, int index)
92
object PyList_GET_ITEM(object lst, Py_ssize_t index)
93
int PyList_CheckExact(object)
94
Py_ssize_t PyList_GET_SIZE (object p)
96
void *PyTuple_GetItem_void_void "PyTuple_GET_ITEM" (void* tpl, int index)
97
object PyTuple_GetItem_void_object "PyTuple_GET_ITEM" (void* tpl, int index)
98
object PyTuple_GET_ITEM(object tpl, Py_ssize_t index)
101
char *PyString_AsString(object p)
102
char *PyString_AsString_obj "PyString_AsString" (PyObject *string)
103
char *PyString_AS_STRING_void "PyString_AS_STRING" (void *p)
104
int PyString_AsStringAndSize(object str, char **buffer, Py_ssize_t *length) except -1
105
object PyString_FromString(char *)
106
object PyString_FromStringAndSize(char *, Py_ssize_t)
107
int PyString_Size(object p)
108
int PyString_GET_SIZE_void "PyString_GET_SIZE" (void *p)
109
int PyString_CheckExact(object p)
110
void Py_INCREF(object o)
111
void Py_DECREF(object o)
114
cdef extern from "string.h":
115
int strncmp(char *s1, char *s2, int len)
116
void *memchr(void *s, int c, size_t len)
117
int memcmp(void *b1, void *b2, size_t len)
118
# ??? memrchr is a GNU extension :(
119
# void *memrchr(void *s, int c, size_t len)
122
cdef void* _my_memrchr(void *s, int c, size_t n): # cannot_raise
123
# memrchr seems to be a GNU extension, so we have to implement it ourselves
136
def _py_memrchr(s, c):
137
"""Just to expose _my_memrchr for testing.
139
:param s: The Python string to search
140
:param c: The character to search for
141
:return: The offset to the last instance of 'c' in s
148
_s = PyString_AsString(s)
149
length = PyString_Size(s)
151
_c = PyString_AsString(c)
152
assert PyString_Size(c) == 1,\
153
'Must be a single character string, not %s' % (c,)
154
found = _my_memrchr(_s, _c[0], length)
157
return <char*>found - <char*>_s
159
cdef object safe_string_from_size(char *s, Py_ssize_t size):
161
# XXX: On 64-bit machines the <int> cast causes a C compiler warning.
162
raise AssertionError(
163
'tried to create a string with an invalid size: %d @0x%x'
165
return PyString_FromStringAndSize(s, size)
168
cdef int _is_aligned(void *ptr): # cannot_raise
169
"""Is this pointer aligned to an integer size offset?
171
:return: 1 if this pointer is aligned, 0 otherwise.
173
return ((<intptr_t>ptr) & ((sizeof(int))-1)) == 0
176
cdef int _cmp_by_dirs(char *path1, int size1, char *path2, int size2): # cannot_raise
177
cdef unsigned char *cur1
178
cdef unsigned char *cur2
179
cdef unsigned char *end1
180
cdef unsigned char *end2
186
if path1 == path2 and size1 == size2:
189
end1 = <unsigned char*>path1+size1
190
end2 = <unsigned char*>path2+size2
192
# Use 32-bit comparisons for the matching portion of the string.
193
# Almost all CPU's are faster at loading and comparing 32-bit integers,
194
# than they are at 8-bit integers.
195
# 99% of the time, these will be aligned, but in case they aren't just skip
197
if _is_aligned(path1) and _is_aligned(path2):
198
cur_int1 = <int*>path1
199
cur_int2 = <int*>path2
200
end_int1 = <int*>(path1 + size1 - (size1 % sizeof(int)))
201
end_int2 = <int*>(path2 + size2 - (size2 % sizeof(int)))
203
while cur_int1 < end_int1 and cur_int2 < end_int2:
204
if cur_int1[0] != cur_int2[0]:
206
cur_int1 = cur_int1 + 1
207
cur_int2 = cur_int2 + 1
209
cur1 = <unsigned char*>cur_int1
210
cur2 = <unsigned char*>cur_int2
212
cur1 = <unsigned char*>path1
213
cur2 = <unsigned char*>path2
215
while cur1 < end1 and cur2 < end2:
216
if cur1[0] == cur2[0]:
217
# This character matches, just go to the next one
221
# The current characters do not match
223
return -1 # Reached the end of path1 segment first
224
elif cur2[0] == c'/':
225
return 1 # Reached the end of path2 segment first
226
elif cur1[0] < cur2[0]:
231
# We reached the end of at least one of the strings
233
return 1 # Not at the end of cur1, must be at the end of cur2
235
return -1 # At the end of cur1, but not at cur2
236
# We reached the end of both strings
240
def cmp_by_dirs(path1, path2):
241
"""Compare two paths directory by directory.
243
This is equivalent to doing::
245
cmp(path1.split('/'), path2.split('/'))
247
The idea is that you should compare path components separately. This
248
differs from plain ``cmp(path1, path2)`` for paths like ``'a-b'`` and
249
``a/b``. "a-b" comes after "a" but would come before "a/b" lexically.
251
:param path1: first path
252
:param path2: second path
253
:return: negative number if ``path1`` comes first,
254
0 if paths are equal,
255
and positive number if ``path2`` sorts first
257
if not PyString_CheckExact(path1):
258
raise TypeError("'path1' must be a plain string, not %s: %r"
259
% (type(path1), path1))
260
if not PyString_CheckExact(path2):
261
raise TypeError("'path2' must be a plain string, not %s: %r"
262
% (type(path2), path2))
263
return _cmp_by_dirs(PyString_AsString(path1),
264
PyString_Size(path1),
265
PyString_AsString(path2),
266
PyString_Size(path2))
269
def _cmp_path_by_dirblock(path1, path2):
270
"""Compare two paths based on what directory they are in.
272
This generates a sort order, such that all children of a directory are
273
sorted together, and grandchildren are in the same order as the
274
children appear. But all grandchildren come after all children.
276
In other words, all entries in a directory are sorted together, and
277
directorys are sorted in cmp_by_dirs order.
279
:param path1: first path
280
:param path2: the second path
281
:return: negative number if ``path1`` comes first,
283
and a positive number if ``path2`` sorts first
285
if not PyString_CheckExact(path1):
286
raise TypeError("'path1' must be a plain string, not %s: %r"
287
% (type(path1), path1))
288
if not PyString_CheckExact(path2):
289
raise TypeError("'path2' must be a plain string, not %s: %r"
290
% (type(path2), path2))
291
return _cmp_path_by_dirblock_intern(PyString_AsString(path1),
292
PyString_Size(path1),
293
PyString_AsString(path2),
294
PyString_Size(path2))
297
cdef int _cmp_path_by_dirblock_intern(char *path1, int path1_len,
298
char *path2, int path2_len): # cannot_raise
299
"""Compare two paths by what directory they are in.
301
see ``_cmp_path_by_dirblock`` for details.
304
cdef int dirname1_len
306
cdef int dirname2_len
308
cdef int basename1_len
310
cdef int basename2_len
314
if path1_len == 0 and path2_len == 0:
317
if path1 == path2 and path1_len == path2_len:
326
basename1 = <char*>_my_memrchr(path1, c'/', path1_len)
328
if basename1 == NULL:
330
basename1_len = path1_len
335
dirname1_len = basename1 - path1
336
basename1 = basename1 + 1
337
basename1_len = path1_len - dirname1_len - 1
339
basename2 = <char*>_my_memrchr(path2, c'/', path2_len)
341
if basename2 == NULL:
343
basename2_len = path2_len
348
dirname2_len = basename2 - path2
349
basename2 = basename2 + 1
350
basename2_len = path2_len - dirname2_len - 1
352
cmp_val = _cmp_by_dirs(dirname1, dirname1_len,
353
dirname2, dirname2_len)
357
cur_len = basename1_len
358
if basename2_len < basename1_len:
359
cur_len = basename2_len
361
cmp_val = memcmp(basename1, basename2, cur_len)
364
if basename1_len == basename2_len:
366
if basename1_len < basename2_len:
371
def _bisect_path_left(paths, path):
372
"""Return the index where to insert path into paths.
374
This uses a path-wise comparison so we get::
384
:param paths: A list of paths to search through
385
:param path: A single path to insert
386
:return: An offset where 'path' can be inserted.
387
:seealso: bisect.bisect_left
398
if not PyList_CheckExact(paths):
399
raise TypeError("you must pass a python list for 'paths' not: %s %r"
400
% (type(paths), paths))
401
if not PyString_CheckExact(path):
402
raise TypeError("you must pass a string for 'path' not: %s %r"
403
% (type(path), path))
408
path_cstr = PyString_AsString(path)
409
path_size = PyString_Size(path)
412
_mid = (_lo + _hi) / 2
413
cur = PyList_GetItem_object_void(paths, _mid)
414
cur_cstr = PyString_AS_STRING_void(cur)
415
cur_size = PyString_GET_SIZE_void(cur)
416
if _cmp_path_by_dirblock_intern(cur_cstr, cur_size,
417
path_cstr, path_size) < 0:
424
def _bisect_path_right(paths, path):
425
"""Return the index where to insert path into paths.
427
This uses a path-wise comparison so we get::
437
:param paths: A list of paths to search through
438
:param path: A single path to insert
439
:return: An offset where 'path' can be inserted.
440
:seealso: bisect.bisect_right
451
if not PyList_CheckExact(paths):
452
raise TypeError("you must pass a python list for 'paths' not: %s %r"
453
% (type(paths), paths))
454
if not PyString_CheckExact(path):
455
raise TypeError("you must pass a string for 'path' not: %s %r"
456
% (type(path), path))
461
path_cstr = PyString_AsString(path)
462
path_size = PyString_Size(path)
465
_mid = (_lo + _hi) / 2
466
cur = PyList_GetItem_object_void(paths, _mid)
467
cur_cstr = PyString_AS_STRING_void(cur)
468
cur_size = PyString_GET_SIZE_void(cur)
469
if _cmp_path_by_dirblock_intern(path_cstr, path_size,
470
cur_cstr, cur_size) < 0:
477
def bisect_dirblock(dirblocks, dirname, lo=0, hi=None, cache=None):
478
"""Return the index where to insert dirname into the dirblocks.
480
The return value idx is such that all directories blocks in dirblock[:idx]
481
have names < dirname, and all blocks in dirblock[idx:] have names >=
484
Optional args lo (default 0) and hi (default len(dirblocks)) bound the
485
slice of a to be searched.
490
cdef char *dirname_cstr
491
cdef int dirname_size
496
if not PyList_CheckExact(dirblocks):
497
raise TypeError("you must pass a python list for 'dirblocks' not: %s %r"
498
% (type(dirblocks), dirblocks))
499
if not PyString_CheckExact(dirname):
500
raise TypeError("you must pass a string for dirname not: %s %r"
501
% (type(dirname), dirname))
508
dirname_cstr = PyString_AsString(dirname)
509
dirname_size = PyString_Size(dirname)
512
_mid = (_lo + _hi) / 2
513
# Grab the dirname for the current dirblock
514
# cur = dirblocks[_mid][0]
515
cur = PyTuple_GetItem_void_void(
516
PyList_GetItem_object_void(dirblocks, _mid), 0)
517
cur_cstr = PyString_AS_STRING_void(cur)
518
cur_size = PyString_GET_SIZE_void(cur)
519
if _cmp_by_dirs(cur_cstr, cur_size, dirname_cstr, dirname_size) < 0:
527
"""Maintain the current location, and return fields as you parse them."""
529
cdef object state # The DirState object
530
cdef object text # The overall string object
531
cdef char *text_cstr # Pointer to the beginning of text
532
cdef int text_size # Length of text
534
cdef char *end_cstr # End of text
535
cdef char *cur_cstr # Pointer to the current record
536
cdef char *next # Pointer to the end of this record
538
def __init__(self, text, state):
541
self.text_cstr = PyString_AsString(text)
542
self.text_size = PyString_Size(text)
543
self.end_cstr = self.text_cstr + self.text_size
544
self.cur_cstr = self.text_cstr
546
cdef char *get_next(self, int *size) except NULL:
547
"""Return a pointer to the start of the next field."""
549
cdef Py_ssize_t extra_len
551
if self.cur_cstr == NULL:
552
raise AssertionError('get_next() called when cur_str is NULL')
553
elif self.cur_cstr >= self.end_cstr:
554
raise AssertionError('get_next() called when there are no chars'
557
self.cur_cstr = <char*>memchr(next, c'\0', self.end_cstr - next)
558
if self.cur_cstr == NULL:
559
extra_len = self.end_cstr - next
560
raise errors.DirstateCorrupt(self.state,
561
'failed to find trailing NULL (\\0).'
562
' Trailing garbage: %r'
563
% safe_string_from_size(next, extra_len))
564
size[0] = self.cur_cstr - next
565
self.cur_cstr = self.cur_cstr + 1
568
cdef object get_next_str(self):
569
"""Get the next field as a Python string."""
572
next = self.get_next(&size)
573
return safe_string_from_size(next, size)
575
cdef int _init(self) except -1:
576
"""Get the pointer ready.
578
This assumes that the dirstate header has already been read, and we
579
already have the dirblock string loaded into memory.
580
This just initializes our memory pointers, etc for parsing of the
585
# The first field should be an empty string left over from the Header
586
first = self.get_next(&size)
587
if first[0] != c'\0' and size == 0:
588
raise AssertionError('First character should be null not: %s'
592
cdef object _get_entry(self, int num_trees, void **p_current_dirname,
594
"""Extract the next entry.
596
This parses the next entry based on the current location in
598
Each entry can be considered a "row" in the total table. And each row
599
has a fixed number of columns. It is generally broken up into "key"
600
columns, then "current" columns, and then "parent" columns.
602
:param num_trees: How many parent trees need to be parsed
603
:param p_current_dirname: A pointer to the current PyString
604
representing the directory name.
605
We pass this in as a void * so that pyrex doesn't have to
606
increment/decrement the PyObject reference counter for each
608
We use a pointer so that _get_entry can update it with the new
610
:param new_block: This is to let the caller know that it needs to
611
create a new directory block to store the next entry.
613
cdef object path_name_file_id_key
614
cdef char *entry_size_cstr
615
cdef unsigned long int entry_size
616
cdef char* executable_cstr
617
cdef int is_executable
618
cdef char* dirname_cstr
623
cdef object fingerprint
626
# Read the 'key' information (dirname, name, file_id)
627
dirname_cstr = self.get_next(&cur_size)
628
# Check to see if we have started a new directory block.
629
# If so, then we need to create a new dirname PyString, so that it can
630
# be used in all of the tuples. This saves time and memory, by re-using
631
# the same object repeatedly.
633
# Do the cheap 'length of string' check first. If the string is a
634
# different length, then we *have* to be a different directory.
635
if (cur_size != PyString_GET_SIZE_void(p_current_dirname[0])
636
or strncmp(dirname_cstr,
637
# Extract the char* from our current dirname string. We
638
# know it is a PyString, so we can use
639
# PyString_AS_STRING, we use the _void version because
640
# we are tricking Pyrex by using a void* rather than an
642
PyString_AS_STRING_void(p_current_dirname[0]),
644
dirname = safe_string_from_size(dirname_cstr, cur_size)
645
p_current_dirname[0] = <void*>dirname
650
# Build up the key that will be used.
651
# By using <object>(void *) Pyrex will automatically handle the
652
# Py_INCREF that we need.
653
path_name_file_id_key = (<object>p_current_dirname[0],
658
# Parse all of the per-tree information. current has the information in
659
# the same location as parent trees. The only difference is that 'info'
660
# is a 'packed_stat' for current, while it is a 'revision_id' for
662
# minikind, fingerprint, and info will be returned as regular python
664
# entry_size and is_executable will be parsed into a python Long and
665
# python Boolean, respectively.
666
# TODO: jam 20070718 Consider changin the entry_size conversion to
667
# prefer python Int when possible. They are generally faster to
668
# work with, and it will be rare that we have a file >2GB.
669
# Especially since this code is pretty much fixed at a max of
672
for i from 0 <= i < num_trees:
673
minikind = self.get_next_str()
674
fingerprint = self.get_next_str()
675
entry_size_cstr = self.get_next(&cur_size)
676
entry_size = strtoul(entry_size_cstr, NULL, 10)
677
executable_cstr = self.get_next(&cur_size)
678
is_executable = (executable_cstr[0] == c'y')
679
info = self.get_next_str()
680
PyList_Append(trees, (
682
fingerprint, # fingerprint
684
is_executable,# executable
685
info, # packed_stat or revision_id
688
# The returned tuple is (key, [trees])
689
ret = (path_name_file_id_key, trees)
690
# Ignore the trailing newline, but assert that it does exist, this
691
# ensures that we always finish parsing a line on an end-of-entry
693
trailing = self.get_next(&cur_size)
694
if cur_size != 1 or trailing[0] != c'\n':
695
raise errors.DirstateCorrupt(self.state,
696
'Bad parse, we expected to end on \\n, not: %d %s: %s'
697
% (cur_size, safe_string_from_size(trailing, cur_size),
701
def _parse_dirblocks(self):
702
"""Parse all dirblocks in the state file."""
704
cdef object current_block
706
cdef void * current_dirname
708
cdef int expected_entry_count
711
num_trees = self.state._num_present_parents() + 1
712
expected_entry_count = self.state._num_entries
714
# Ignore the first record
718
dirblocks = [('', current_block), ('', [])]
719
self.state._dirblocks = dirblocks
721
current_dirname = <void*>obj
725
# TODO: jam 2007-05-07 Consider pre-allocating some space for the
726
# members, and then growing and shrinking from there. If most
727
# directories have close to 10 entries in them, it would save a
728
# few mallocs if we default our list size to something
729
# reasonable. Or we could malloc it to something large (100 or
730
# so), and then truncate. That would give us a malloc + realloc,
731
# rather than lots of reallocs.
732
while self.cur_cstr < self.end_cstr:
733
entry = self._get_entry(num_trees, ¤t_dirname, &new_block)
735
# new block - different dirname
737
PyList_Append(dirblocks,
738
(<object>current_dirname, current_block))
739
PyList_Append(current_block, entry)
740
entry_count = entry_count + 1
741
if entry_count != expected_entry_count:
742
raise errors.DirstateCorrupt(self.state,
743
'We read the wrong number of entries.'
744
' We expected to read %s, but read %s'
745
% (expected_entry_count, entry_count))
746
self.state._split_root_dirblock_into_contents()
749
def _read_dirblocks(state):
750
"""Read in the dirblocks for the given DirState object.
752
This is tightly bound to the DirState internal representation. It should be
753
thought of as a member function, which is only separated out so that we can
754
re-write it in pyrex.
756
:param state: A DirState object.
758
:postcondition: The dirblocks will be loaded into the appropriate fields in
761
state._state_file.seek(state._end_of_header)
762
text = state._state_file.read()
763
# TODO: check the crc checksums. crc_measured = zlib.crc32(text)
765
reader = Reader(text, state)
767
reader._parse_dirblocks()
768
state._dirblock_state = DirState.IN_MEMORY_UNMODIFIED
771
cdef int minikind_from_mode(int mode): # cannot_raise
772
# in order of frequency:
782
_encode = binascii.b2a_base64
785
from struct import pack
786
cdef _pack_stat(stat_value):
787
"""return a string representing the stat value's key fields.
789
:param stat_value: A stat oject with st_size, st_mtime, st_ctime, st_dev,
790
st_ino and st_mode fields.
792
cdef char result[6*4] # 6 long ints
794
aliased = <int *>result
795
aliased[0] = htonl(stat_value.st_size)
796
aliased[1] = htonl(int(stat_value.st_mtime))
797
aliased[2] = htonl(int(stat_value.st_ctime))
798
aliased[3] = htonl(stat_value.st_dev)
799
aliased[4] = htonl(stat_value.st_ino & 0xFFFFFFFF)
800
aliased[5] = htonl(stat_value.st_mode)
801
packed = PyString_FromStringAndSize(result, 6*4)
802
return _encode(packed)[:-1]
805
def update_entry(self, entry, abspath, stat_value):
806
"""Update the entry based on what is actually on disk.
808
This function only calculates the sha if it needs to - if the entry is
809
uncachable, or clearly different to the first parent's entry, no sha
810
is calculated, and None is returned.
812
:param entry: This is the dirblock entry for the file in question.
813
:param abspath: The path on disk for this file.
814
:param stat_value: (optional) if we already have done a stat on the
816
:return: None, or The sha1 hexdigest of the file (40 bytes) or link
819
return _update_entry(self, entry, abspath, stat_value)
822
cdef _update_entry(self, entry, abspath, stat_value):
823
"""Update the entry based on what is actually on disk.
825
This function only calculates the sha if it needs to - if the entry is
826
uncachable, or clearly different to the first parent's entry, no sha
827
is calculated, and None is returned.
829
:param self: The dirstate object this is operating on.
830
:param entry: This is the dirblock entry for the file in question.
831
:param abspath: The path on disk for this file.
832
:param stat_value: The stat value done on the path.
833
:return: None, or The sha1 hexdigest of the file (40 bytes) or link
836
# TODO - require pyrex 0.9.8, then use a pyd file to define access to the
837
# _st mode of the compiled stat objects.
838
cdef int minikind, saved_minikind
840
minikind = minikind_from_mode(stat_value.st_mode)
843
packed_stat = _pack_stat(stat_value)
844
details = PyList_GetItem_void_void(PyTuple_GetItem_void_void(<void *>entry, 1), 0)
845
saved_minikind = PyString_AsString_obj(<PyObject *>PyTuple_GetItem_void_void(details, 0))[0]
846
if minikind == c'd' and saved_minikind == c't':
848
saved_link_or_sha1 = PyTuple_GetItem_void_object(details, 1)
849
saved_file_size = PyTuple_GetItem_void_object(details, 2)
850
saved_executable = PyTuple_GetItem_void_object(details, 3)
851
saved_packed_stat = PyTuple_GetItem_void_object(details, 4)
852
# Deal with pyrex decrefing the objects
853
Py_INCREF(saved_link_or_sha1)
854
Py_INCREF(saved_file_size)
855
Py_INCREF(saved_executable)
856
Py_INCREF(saved_packed_stat)
857
#(saved_minikind, saved_link_or_sha1, saved_file_size,
858
# saved_executable, saved_packed_stat) = entry[1][0]
860
if (minikind == saved_minikind
861
and packed_stat == saved_packed_stat):
862
# The stat hasn't changed since we saved, so we can re-use the
867
# size should also be in packed_stat
868
if saved_file_size == stat_value.st_size:
869
return saved_link_or_sha1
871
# If we have gotten this far, that means that we need to actually
872
# process this entry.
875
executable = self._is_executable(stat_value.st_mode,
877
if self._cutoff_time is None:
878
self._sha_cutoff_time()
879
if (stat_value.st_mtime < self._cutoff_time
880
and stat_value.st_ctime < self._cutoff_time
881
and len(entry[1]) > 1
882
and entry[1][1][0] != 'a'):
883
# Could check for size changes for further optimised
884
# avoidance of sha1's. However the most prominent case of
885
# over-shaing is during initial add, which this catches.
886
link_or_sha1 = self._sha1_file(abspath)
887
entry[1][0] = ('f', link_or_sha1, stat_value.st_size,
888
executable, packed_stat)
890
entry[1][0] = ('f', '', stat_value.st_size,
891
executable, DirState.NULLSTAT)
892
elif minikind == c'd':
894
entry[1][0] = ('d', '', 0, False, packed_stat)
895
if saved_minikind != c'd':
896
# This changed from something into a directory. Make sure we
897
# have a directory block for it. This doesn't happen very
898
# often, so this doesn't have to be super fast.
899
block_index, entry_index, dir_present, file_present = \
900
self._get_block_entry_index(entry[0][0], entry[0][1], 0)
901
self._ensure_block(block_index, entry_index,
902
pathjoin(entry[0][0], entry[0][1]))
903
elif minikind == c'l':
904
link_or_sha1 = self._read_link(abspath, saved_link_or_sha1)
905
if self._cutoff_time is None:
906
self._sha_cutoff_time()
907
if (stat_value.st_mtime < self._cutoff_time
908
and stat_value.st_ctime < self._cutoff_time):
909
entry[1][0] = ('l', link_or_sha1, stat_value.st_size,
912
entry[1][0] = ('l', '', stat_value.st_size,
913
False, DirState.NULLSTAT)
914
self._dirblock_state = DirState.IN_MEMORY_MODIFIED
918
# TODO: Do we want to worry about exceptions here?
919
cdef char _minikind_from_string(object string) except? -1:
920
"""Convert a python string to a char."""
921
return PyString_AsString(string)[0]
924
cdef object _kind_absent
925
cdef object _kind_file
926
cdef object _kind_directory
927
cdef object _kind_symlink
928
cdef object _kind_relocated
929
cdef object _kind_tree_reference
930
_kind_absent = "absent"
932
_kind_directory = "directory"
933
_kind_symlink = "symlink"
934
_kind_relocated = "relocated"
935
_kind_tree_reference = "tree-reference"
938
cdef object _minikind_to_kind(char minikind):
939
"""Create a string kind for minikind."""
940
cdef char _minikind[1]
943
elif minikind == c'd':
944
return _kind_directory
945
elif minikind == c'a':
947
elif minikind == c'r':
948
return _kind_relocated
949
elif minikind == c'l':
951
elif minikind == c't':
952
return _kind_tree_reference
953
_minikind[0] = minikind
954
raise KeyError(PyString_FromStringAndSize(_minikind, 1))
957
cdef int _versioned_minikind(char minikind): # cannot_raise
958
"""Return non-zero if minikind is in fltd"""
959
return (minikind == c'f' or
965
cdef class ProcessEntryC:
967
cdef int doing_consistency_expansion
968
cdef object old_dirname_to_file_id # dict
969
cdef object new_dirname_to_file_id # dict
970
cdef object last_source_parent
971
cdef object last_target_parent
972
cdef int include_unchanged
974
cdef object use_filesystem_for_exec
975
cdef object utf8_decode
976
cdef readonly object searched_specific_files
977
cdef readonly object searched_exact_paths
978
cdef object search_specific_files
979
# The parents up to the root of the paths we are searching.
980
# After all normal paths are returned, these specific items are returned.
981
cdef object search_specific_file_parents
983
# Current iteration variables:
984
cdef object current_root
985
cdef object current_root_unicode
986
cdef object root_entries
987
cdef int root_entries_pos, root_entries_len
988
cdef object root_abspath
989
cdef int source_index, target_index
990
cdef int want_unversioned
992
cdef object dir_iterator
994
cdef object current_block
995
cdef int current_block_pos
996
cdef object current_block_list
997
cdef object current_dir_info
998
cdef object current_dir_list
999
cdef object _pending_consistent_entries # list
1001
cdef object root_dir_info
1002
cdef object bisect_left
1003
cdef object pathjoin
1005
# A set of the ids we've output when doing partial output.
1006
cdef object seen_ids
1007
cdef object sha_file
1009
def __init__(self, include_unchanged, use_filesystem_for_exec,
1010
search_specific_files, state, source_index, target_index,
1011
want_unversioned, tree):
1012
self.doing_consistency_expansion = 0
1013
self.old_dirname_to_file_id = {}
1014
self.new_dirname_to_file_id = {}
1015
# Are we doing a partial iter_changes?
1016
self.partial = set(['']).__ne__(search_specific_files)
1017
# Using a list so that we can access the values and change them in
1018
# nested scope. Each one is [path, file_id, entry]
1019
self.last_source_parent = [None, None]
1020
self.last_target_parent = [None, None]
1021
if include_unchanged is None:
1022
self.include_unchanged = False
1024
self.include_unchanged = int(include_unchanged)
1025
self.use_filesystem_for_exec = use_filesystem_for_exec
1026
self.utf8_decode = cache_utf8._utf8_decode
1027
# for all search_indexs in each path at or under each element of
1028
# search_specific_files, if the detail is relocated: add the id, and
1029
# add the relocated path as one to search if its not searched already.
1030
# If the detail is not relocated, add the id.
1031
self.searched_specific_files = set()
1032
# When we search exact paths without expanding downwards, we record
1034
self.searched_exact_paths = set()
1035
self.search_specific_files = search_specific_files
1036
# The parents up to the root of the paths we are searching.
1037
# After all normal paths are returned, these specific items are returned.
1038
self.search_specific_file_parents = set()
1039
# The ids we've sent out in the delta.
1040
self.seen_ids = set()
1042
self.current_root = None
1043
self.current_root_unicode = None
1044
self.root_entries = None
1045
self.root_entries_pos = 0
1046
self.root_entries_len = 0
1047
self.root_abspath = None
1048
if source_index is None:
1049
self.source_index = -1
1051
self.source_index = source_index
1052
self.target_index = target_index
1053
self.want_unversioned = want_unversioned
1055
self.dir_iterator = None
1056
self.block_index = -1
1057
self.current_block = None
1058
self.current_block_list = None
1059
self.current_block_pos = -1
1060
self.current_dir_info = None
1061
self.current_dir_list = None
1062
self._pending_consistent_entries = []
1064
self.root_dir_info = None
1065
self.bisect_left = bisect.bisect_left
1066
self.pathjoin = osutils.pathjoin
1067
self.fstat = os.fstat
1068
self.sha_file = osutils.sha_file
1069
if target_index != 0:
1070
# A lot of code in here depends on target_index == 0
1071
raise errors.BzrError('unsupported target index')
1073
cdef _process_entry(self, entry, path_info):
1074
"""Compare an entry and real disk to generate delta information.
1076
:param path_info: top_relpath, basename, kind, lstat, abspath for
1077
the path of entry. If None, then the path is considered absent in
1078
the target (Perhaps we should pass in a concrete entry for this ?)
1079
Basename is returned as a utf8 string because we expect this
1080
tuple will be ignored, and don't want to take the time to
1082
:return: (iter_changes_result, changed). If the entry has not been
1083
handled then changed is None. Otherwise it is False if no content
1084
or metadata changes have occured, and True if any content or
1085
metadata change has occurred. If self.include_unchanged is True then
1086
if changed is not None, iter_changes_result will always be a result
1087
tuple. Otherwise, iter_changes_result is None unless changed is
1090
cdef char target_minikind
1091
cdef char source_minikind
1093
cdef int content_change
1094
cdef object details_list
1096
details_list = entry[1]
1097
if -1 == self.source_index:
1098
source_details = DirState.NULL_PARENT_DETAILS
1100
source_details = details_list[self.source_index]
1101
target_details = details_list[self.target_index]
1102
target_minikind = _minikind_from_string(target_details[0])
1103
if path_info is not None and _versioned_minikind(target_minikind):
1104
if self.target_index != 0:
1105
raise AssertionError("Unsupported target index %d" %
1107
link_or_sha1 = _update_entry(self.state, entry, path_info[4], path_info[3])
1108
# The entry may have been modified by update_entry
1109
target_details = details_list[self.target_index]
1110
target_minikind = _minikind_from_string(target_details[0])
1113
# the rest of this function is 0.3 seconds on 50K paths, or
1114
# 0.000006 seconds per call.
1115
source_minikind = _minikind_from_string(source_details[0])
1116
if ((_versioned_minikind(source_minikind) or source_minikind == c'r')
1117
and _versioned_minikind(target_minikind)):
1118
# claimed content in both: diff
1119
# r | fdlt | | add source to search, add id path move and perform
1120
# | | | diff check on source-target
1121
# r | fdlt | a | dangling file that was present in the basis.
1123
if source_minikind != c'r':
1124
old_dirname = entry[0][0]
1125
old_basename = entry[0][1]
1126
old_path = path = None
1128
# add the source to the search path to find any children it
1129
# has. TODO ? : only add if it is a container ?
1130
if (not self.doing_consistency_expansion and
1131
not osutils.is_inside_any(self.searched_specific_files,
1132
source_details[1])):
1133
self.search_specific_files.add(source_details[1])
1134
# expanding from a user requested path, parent expansion
1135
# for delta consistency happens later.
1136
# generate the old path; this is needed for stating later
1138
old_path = source_details[1]
1139
old_dirname, old_basename = os.path.split(old_path)
1140
path = self.pathjoin(entry[0][0], entry[0][1])
1141
old_entry = self.state._get_entry(self.source_index,
1143
# update the source details variable to be the real
1145
if old_entry == (None, None):
1146
raise errors.CorruptDirstate(self.state._filename,
1147
"entry '%s/%s' is considered renamed from %r"
1148
" but source does not exist\n"
1149
"entry: %s" % (entry[0][0], entry[0][1], old_path, entry))
1150
source_details = old_entry[1][self.source_index]
1151
source_minikind = _minikind_from_string(source_details[0])
1152
if path_info is None:
1153
# the file is missing on disk, show as removed.
1158
# source and target are both versioned and disk file is present.
1159
target_kind = path_info[2]
1160
if target_kind == 'directory':
1162
old_path = path = self.pathjoin(old_dirname, old_basename)
1163
file_id = entry[0][2]
1164
self.new_dirname_to_file_id[path] = file_id
1165
if source_minikind != c'd':
1168
# directories have no fingerprint
1171
elif target_kind == 'file':
1172
if source_minikind != c'f':
1175
# Check the sha. We can't just rely on the size as
1176
# content filtering may mean differ sizes actually
1177
# map to the same content
1178
if link_or_sha1 is None:
1180
statvalue, link_or_sha1 = \
1181
self.state._sha1_provider.stat_and_sha1(
1183
self.state._observed_sha1(entry, link_or_sha1,
1185
content_change = (link_or_sha1 != source_details[1])
1186
# Target details is updated at update_entry time
1187
if self.use_filesystem_for_exec:
1188
# We don't need S_ISREG here, because we are sure
1189
# we are dealing with a file.
1190
target_exec = bool(S_IXUSR & path_info[3].st_mode)
1192
target_exec = target_details[3]
1193
elif target_kind == 'symlink':
1194
if source_minikind != c'l':
1197
content_change = (link_or_sha1 != source_details[1])
1199
elif target_kind == 'tree-reference':
1200
if source_minikind != c't':
1207
path = self.pathjoin(old_dirname, old_basename)
1208
raise errors.BadFileKindError(path, path_info[2])
1209
if source_minikind == c'd':
1211
old_path = path = self.pathjoin(old_dirname, old_basename)
1213
file_id = entry[0][2]
1214
self.old_dirname_to_file_id[old_path] = file_id
1215
# parent id is the entry for the path in the target tree
1216
if old_basename and old_dirname == self.last_source_parent[0]:
1217
# use a cached hit for non-root source entries.
1218
source_parent_id = self.last_source_parent[1]
1221
source_parent_id = self.old_dirname_to_file_id[old_dirname]
1223
source_parent_entry = self.state._get_entry(self.source_index,
1224
path_utf8=old_dirname)
1225
source_parent_id = source_parent_entry[0][2]
1226
if source_parent_id == entry[0][2]:
1227
# This is the root, so the parent is None
1228
source_parent_id = None
1230
self.last_source_parent[0] = old_dirname
1231
self.last_source_parent[1] = source_parent_id
1232
new_dirname = entry[0][0]
1233
if entry[0][1] and new_dirname == self.last_target_parent[0]:
1234
# use a cached hit for non-root target entries.
1235
target_parent_id = self.last_target_parent[1]
1238
target_parent_id = self.new_dirname_to_file_id[new_dirname]
1240
# TODO: We don't always need to do the lookup, because the
1241
# parent entry will be the same as the source entry.
1242
target_parent_entry = self.state._get_entry(self.target_index,
1243
path_utf8=new_dirname)
1244
if target_parent_entry == (None, None):
1245
raise AssertionError(
1246
"Could not find target parent in wt: %s\nparent of: %s"
1247
% (new_dirname, entry))
1248
target_parent_id = target_parent_entry[0][2]
1249
if target_parent_id == entry[0][2]:
1250
# This is the root, so the parent is None
1251
target_parent_id = None
1253
self.last_target_parent[0] = new_dirname
1254
self.last_target_parent[1] = target_parent_id
1256
source_exec = source_details[3]
1257
changed = (content_change
1258
or source_parent_id != target_parent_id
1259
or old_basename != entry[0][1]
1260
or source_exec != target_exec
1262
if not changed and not self.include_unchanged:
1265
if old_path is None:
1266
path = self.pathjoin(old_dirname, old_basename)
1268
old_path_u = self.utf8_decode(old_path)[0]
1271
old_path_u = self.utf8_decode(old_path)[0]
1272
if old_path == path:
1275
path_u = self.utf8_decode(path)[0]
1276
source_kind = _minikind_to_kind(source_minikind)
1277
return (entry[0][2],
1278
(old_path_u, path_u),
1281
(source_parent_id, target_parent_id),
1282
(self.utf8_decode(old_basename)[0], self.utf8_decode(entry[0][1])[0]),
1283
(source_kind, target_kind),
1284
(source_exec, target_exec)), changed
1285
elif source_minikind == c'a' and _versioned_minikind(target_minikind):
1286
# looks like a new file
1287
path = self.pathjoin(entry[0][0], entry[0][1])
1288
# parent id is the entry for the path in the target tree
1289
# TODO: these are the same for an entire directory: cache em.
1290
parent_entry = self.state._get_entry(self.target_index,
1291
path_utf8=entry[0][0])
1292
if parent_entry is None:
1293
raise errors.DirstateCorrupt(self.state,
1294
"We could not find the parent entry in index %d"
1295
" for the entry: %s"
1296
% (self.target_index, entry[0]))
1297
parent_id = parent_entry[0][2]
1298
if parent_id == entry[0][2]:
1300
if path_info is not None:
1302
if self.use_filesystem_for_exec:
1303
# We need S_ISREG here, because we aren't sure if this
1306
S_ISREG(path_info[3].st_mode)
1307
and S_IXUSR & path_info[3].st_mode)
1309
target_exec = target_details[3]
1310
return (entry[0][2],
1311
(None, self.utf8_decode(path)[0]),
1315
(None, self.utf8_decode(entry[0][1])[0]),
1316
(None, path_info[2]),
1317
(None, target_exec)), True
1319
# Its a missing file, report it as such.
1320
return (entry[0][2],
1321
(None, self.utf8_decode(path)[0]),
1325
(None, self.utf8_decode(entry[0][1])[0]),
1327
(None, False)), True
1328
elif _versioned_minikind(source_minikind) and target_minikind == c'a':
1329
# unversioned, possibly, or possibly not deleted: we dont care.
1330
# if its still on disk, *and* theres no other entry at this
1331
# path [we dont know this in this routine at the moment -
1332
# perhaps we should change this - then it would be an unknown.
1333
old_path = self.pathjoin(entry[0][0], entry[0][1])
1334
# parent id is the entry for the path in the target tree
1335
parent_id = self.state._get_entry(self.source_index, path_utf8=entry[0][0])[0][2]
1336
if parent_id == entry[0][2]:
1338
return (entry[0][2],
1339
(self.utf8_decode(old_path)[0], None),
1343
(self.utf8_decode(entry[0][1])[0], None),
1344
(_minikind_to_kind(source_minikind), None),
1345
(source_details[3], None)), True
1346
elif _versioned_minikind(source_minikind) and target_minikind == c'r':
1347
# a rename; could be a true rename, or a rename inherited from
1348
# a renamed parent. TODO: handle this efficiently. Its not
1349
# common case to rename dirs though, so a correct but slow
1350
# implementation will do.
1351
if (not self.doing_consistency_expansion and
1352
not osutils.is_inside_any(self.searched_specific_files,
1353
target_details[1])):
1354
self.search_specific_files.add(target_details[1])
1355
# We don't expand the specific files parents list here as
1356
# the path is absent in target and won't create a delta with
1358
elif ((source_minikind == c'r' or source_minikind == c'a') and
1359
(target_minikind == c'r' or target_minikind == c'a')):
1360
# neither of the selected trees contain this path,
1361
# so skip over it. This is not currently directly tested, but
1362
# is indirectly via test_too_much.TestCommands.test_conflicts.
1365
raise AssertionError("don't know how to compare "
1366
"source_minikind=%r, target_minikind=%r"
1367
% (source_minikind, target_minikind))
1368
## import pdb;pdb.set_trace()
1374
def iter_changes(self):
1377
cdef int _gather_result_for_consistency(self, result) except -1:
1378
"""Check a result we will yield to make sure we are consistent later.
1380
This gathers result's parents into a set to output later.
1382
:param result: A result tuple.
1384
if not self.partial or not result[0]:
1386
self.seen_ids.add(result[0])
1387
new_path = result[1][1]
1389
# Not the root and not a delete: queue up the parents of the path.
1390
self.search_specific_file_parents.update(
1391
osutils.parent_directories(new_path.encode('utf8')))
1392
# Add the root directory which parent_directories does not
1394
self.search_specific_file_parents.add('')
1397
cdef int _update_current_block(self) except -1:
1398
if (self.block_index < len(self.state._dirblocks) and
1399
osutils.is_inside(self.current_root, self.state._dirblocks[self.block_index][0])):
1400
self.current_block = self.state._dirblocks[self.block_index]
1401
self.current_block_list = self.current_block[1]
1402
self.current_block_pos = 0
1404
self.current_block = None
1405
self.current_block_list = None
1409
# Simple thunk to allow tail recursion without pyrex confusion
1410
return self._iter_next()
1412
cdef _iter_next(self):
1413
"""Iterate over the changes."""
1414
# This function single steps through an iterator. As such while loops
1415
# are often exited by 'return' - the code is structured so that the
1416
# next call into the function will return to the same while loop. Note
1417
# that all flow control needed to re-reach that step is reexecuted,
1418
# which can be a performance problem. It has not yet been tuned to
1419
# minimise this; a state machine is probably the simplest restructuring
1420
# to both minimise this overhead and make the code considerably more
1424
# compare source_index and target_index at or under each element of search_specific_files.
1425
# follow the following comparison table. Note that we only want to do diff operations when
1426
# the target is fdl because thats when the walkdirs logic will have exposed the pathinfo
1430
# Source | Target | disk | action
1431
# r | fdlt | | add source to search, add id path move and perform
1432
# | | | diff check on source-target
1433
# r | fdlt | a | dangling file that was present in the basis.
1435
# r | a | | add source to search
1437
# r | r | | this path is present in a non-examined tree, skip.
1438
# r | r | a | this path is present in a non-examined tree, skip.
1439
# a | fdlt | | add new id
1440
# a | fdlt | a | dangling locally added file, skip
1441
# a | a | | not present in either tree, skip
1442
# a | a | a | not present in any tree, skip
1443
# a | r | | not present in either tree at this path, skip as it
1444
# | | | may not be selected by the users list of paths.
1445
# a | r | a | not present in either tree at this path, skip as it
1446
# | | | may not be selected by the users list of paths.
1447
# fdlt | fdlt | | content in both: diff them
1448
# fdlt | fdlt | a | deleted locally, but not unversioned - show as deleted ?
1449
# fdlt | a | | unversioned: output deleted id for now
1450
# fdlt | a | a | unversioned and deleted: output deleted id
1451
# fdlt | r | | relocated in this tree, so add target to search.
1452
# | | | Dont diff, we will see an r,fd; pair when we reach
1453
# | | | this id at the other path.
1454
# fdlt | r | a | relocated in this tree, so add target to search.
1455
# | | | Dont diff, we will see an r,fd; pair when we reach
1456
# | | | this id at the other path.
1458
# TODO: jam 20070516 - Avoid the _get_entry lookup overhead by
1459
# keeping a cache of directories that we have seen.
1460
cdef object current_dirname, current_blockname
1461
cdef char * current_dirname_c, * current_blockname_c
1462
cdef int advance_entry, advance_path
1463
cdef int path_handled
1464
searched_specific_files = self.searched_specific_files
1465
# Are we walking a root?
1466
while self.root_entries_pos < self.root_entries_len:
1467
entry = self.root_entries[self.root_entries_pos]
1468
self.root_entries_pos = self.root_entries_pos + 1
1469
result, changed = self._process_entry(entry, self.root_dir_info)
1470
if changed is not None:
1472
self._gather_result_for_consistency(result)
1473
if changed or self.include_unchanged:
1475
# Have we finished the prior root, or never started one ?
1476
if self.current_root is None:
1477
# TODO: the pending list should be lexically sorted? the
1478
# interface doesn't require it.
1480
self.current_root = self.search_specific_files.pop()
1482
raise StopIteration()
1483
self.searched_specific_files.add(self.current_root)
1484
# process the entries for this containing directory: the rest will be
1485
# found by their parents recursively.
1486
self.root_entries = self.state._entries_for_path(self.current_root)
1487
self.root_entries_len = len(self.root_entries)
1488
self.current_root_unicode = self.current_root.decode('utf8')
1489
self.root_abspath = self.tree.abspath(self.current_root_unicode)
1491
root_stat = os.lstat(self.root_abspath)
1493
if e.errno == errno.ENOENT:
1494
# the path does not exist: let _process_entry know that.
1495
self.root_dir_info = None
1497
# some other random error: hand it up.
1500
self.root_dir_info = ('', self.current_root,
1501
osutils.file_kind_from_stat_mode(root_stat.st_mode), root_stat,
1503
if self.root_dir_info[2] == 'directory':
1504
if self.tree._directory_is_tree_reference(
1505
self.current_root_unicode):
1506
self.root_dir_info = self.root_dir_info[:2] + \
1507
('tree-reference',) + self.root_dir_info[3:]
1508
if not self.root_entries and not self.root_dir_info:
1509
# this specified path is not present at all, skip it.
1510
# (tail recursion, can do a loop once the full structure is
1512
return self._iter_next()
1514
self.root_entries_pos = 0
1515
# XXX Clarity: This loop is duplicated a out the self.current_root
1516
# is None guard above: if we return from it, it completes there
1517
# (and the following if block cannot trigger because
1518
# path_handled must be true, so the if block is not # duplicated.
1519
while self.root_entries_pos < self.root_entries_len:
1520
entry = self.root_entries[self.root_entries_pos]
1521
self.root_entries_pos = self.root_entries_pos + 1
1522
result, changed = self._process_entry(entry, self.root_dir_info)
1523
if changed is not None:
1526
self._gather_result_for_consistency(result)
1527
if changed or self.include_unchanged:
1529
# handle unversioned specified paths:
1530
if self.want_unversioned and not path_handled and self.root_dir_info:
1531
new_executable = bool(
1532
stat.S_ISREG(self.root_dir_info[3].st_mode)
1533
and stat.S_IEXEC & self.root_dir_info[3].st_mode)
1535
(None, self.current_root_unicode),
1539
(None, splitpath(self.current_root_unicode)[-1]),
1540
(None, self.root_dir_info[2]),
1541
(None, new_executable)
1543
# If we reach here, the outer flow continues, which enters into the
1544
# per-root setup logic.
1545
if (self.current_dir_info is None and self.current_block is None and not
1546
self.doing_consistency_expansion):
1547
# setup iteration of this root:
1548
self.current_dir_list = None
1549
if self.root_dir_info and self.root_dir_info[2] == 'tree-reference':
1550
self.current_dir_info = None
1552
self.dir_iterator = osutils._walkdirs_utf8(self.root_abspath,
1553
prefix=self.current_root)
1556
self.current_dir_info = self.dir_iterator.next()
1557
self.current_dir_list = self.current_dir_info[1]
1559
# there may be directories in the inventory even though
1560
# this path is not a file on disk: so mark it as end of
1562
if e.errno in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL):
1563
self.current_dir_info = None
1564
elif sys.platform == 'win32':
1565
# on win32, python2.4 has e.errno == ERROR_DIRECTORY, but
1566
# python 2.5 has e.errno == EINVAL,
1567
# and e.winerror == ERROR_DIRECTORY
1569
e_winerror = e.winerror
1570
except AttributeError:
1572
win_errors = (ERROR_DIRECTORY, ERROR_PATH_NOT_FOUND)
1573
if (e.errno in win_errors or e_winerror in win_errors):
1574
self.current_dir_info = None
1576
# Will this really raise the right exception ?
1581
if self.current_dir_info[0][0] == '':
1582
# remove .bzr from iteration
1583
bzr_index = self.bisect_left(self.current_dir_list, ('.bzr',))
1584
if self.current_dir_list[bzr_index][0] != '.bzr':
1585
raise AssertionError()
1586
del self.current_dir_list[bzr_index]
1587
initial_key = (self.current_root, '', '')
1588
self.block_index, _ = self.state._find_block_index_from_key(initial_key)
1589
if self.block_index == 0:
1590
# we have processed the total root already, but because the
1591
# initial key matched it we should skip it here.
1592
self.block_index = self.block_index + 1
1593
self._update_current_block()
1594
# walk until both the directory listing and the versioned metadata
1596
while (self.current_dir_info is not None
1597
or self.current_block is not None):
1598
# Uncommon case - a missing directory or an unversioned directory:
1599
if (self.current_dir_info and self.current_block
1600
and self.current_dir_info[0][0] != self.current_block[0]):
1601
# Work around pyrex broken heuristic - current_dirname has
1602
# the same scope as current_dirname_c
1603
current_dirname = self.current_dir_info[0][0]
1604
current_dirname_c = PyString_AS_STRING_void(
1605
<void *>current_dirname)
1606
current_blockname = self.current_block[0]
1607
current_blockname_c = PyString_AS_STRING_void(
1608
<void *>current_blockname)
1609
# In the python generator we evaluate this if block once per
1610
# dir+block; because we reenter in the pyrex version its being
1611
# evaluated once per path: we could cache the result before
1612
# doing the while loop and probably save time.
1613
if _cmp_by_dirs(current_dirname_c,
1614
PyString_Size(current_dirname),
1615
current_blockname_c,
1616
PyString_Size(current_blockname)) < 0:
1617
# filesystem data refers to paths not covered by the
1618
# dirblock. this has two possibilities:
1619
# A) it is versioned but empty, so there is no block for it
1620
# B) it is not versioned.
1622
# if (A) then we need to recurse into it to check for
1623
# new unknown files or directories.
1624
# if (B) then we should ignore it, because we don't
1625
# recurse into unknown directories.
1626
# We are doing a loop
1627
while self.path_index < len(self.current_dir_list):
1628
current_path_info = self.current_dir_list[self.path_index]
1629
# dont descend into this unversioned path if it is
1631
if current_path_info[2] in ('directory',
1633
del self.current_dir_list[self.path_index]
1634
self.path_index = self.path_index - 1
1635
self.path_index = self.path_index + 1
1636
if self.want_unversioned:
1637
if current_path_info[2] == 'directory':
1638
if self.tree._directory_is_tree_reference(
1639
self.utf8_decode(current_path_info[0])[0]):
1640
current_path_info = current_path_info[:2] + \
1641
('tree-reference',) + current_path_info[3:]
1642
new_executable = bool(
1643
stat.S_ISREG(current_path_info[3].st_mode)
1644
and stat.S_IEXEC & current_path_info[3].st_mode)
1646
(None, self.utf8_decode(current_path_info[0])[0]),
1650
(None, self.utf8_decode(current_path_info[1])[0]),
1651
(None, current_path_info[2]),
1652
(None, new_executable))
1653
# This dir info has been handled, go to the next
1655
self.current_dir_list = None
1657
self.current_dir_info = self.dir_iterator.next()
1658
self.current_dir_list = self.current_dir_info[1]
1659
except StopIteration:
1660
self.current_dir_info = None
1662
# We have a dirblock entry for this location, but there
1663
# is no filesystem path for this. This is most likely
1664
# because a directory was removed from the disk.
1665
# We don't have to report the missing directory,
1666
# because that should have already been handled, but we
1667
# need to handle all of the files that are contained
1669
while self.current_block_pos < len(self.current_block_list):
1670
current_entry = self.current_block_list[self.current_block_pos]
1671
self.current_block_pos = self.current_block_pos + 1
1672
# entry referring to file not present on disk.
1673
# advance the entry only, after processing.
1674
result, changed = self._process_entry(current_entry, None)
1675
if changed is not None:
1677
self._gather_result_for_consistency(result)
1678
if changed or self.include_unchanged:
1680
self.block_index = self.block_index + 1
1681
self._update_current_block()
1682
continue # next loop-on-block/dir
1683
result = self._loop_one_block()
1684
if result is not None:
1686
if len(self.search_specific_files):
1687
# More supplied paths to process
1688
self.current_root = None
1689
return self._iter_next()
1690
# Start expanding more conservatively, adding paths the user may not
1691
# have intended but required for consistent deltas.
1692
self.doing_consistency_expansion = 1
1693
if not self._pending_consistent_entries:
1694
self._pending_consistent_entries = self._next_consistent_entries()
1695
while self._pending_consistent_entries:
1696
result, changed = self._pending_consistent_entries.pop()
1697
if changed is not None:
1699
raise StopIteration()
1701
cdef object _maybe_tree_ref(self, current_path_info):
1702
if self.tree._directory_is_tree_reference(
1703
self.utf8_decode(current_path_info[0])[0]):
1704
return current_path_info[:2] + \
1705
('tree-reference',) + current_path_info[3:]
1707
return current_path_info
1709
cdef object _loop_one_block(self):
1710
# current_dir_info and current_block refer to the same directory -
1711
# this is the common case code.
1712
# Assign local variables for current path and entry:
1713
cdef object current_entry
1714
cdef object current_path_info
1715
cdef int path_handled
1718
# cdef char * temp_str
1719
# cdef Py_ssize_t temp_str_length
1720
# PyString_AsStringAndSize(disk_kind, &temp_str, &temp_str_length)
1721
# if not strncmp(temp_str, "directory", temp_str_length):
1722
if (self.current_block is not None and
1723
self.current_block_pos < PyList_GET_SIZE(self.current_block_list)):
1724
current_entry = PyList_GET_ITEM(self.current_block_list,
1725
self.current_block_pos)
1727
Py_INCREF(current_entry)
1729
current_entry = None
1730
if (self.current_dir_info is not None and
1731
self.path_index < PyList_GET_SIZE(self.current_dir_list)):
1732
current_path_info = PyList_GET_ITEM(self.current_dir_list,
1735
Py_INCREF(current_path_info)
1736
disk_kind = PyTuple_GET_ITEM(current_path_info, 2)
1738
Py_INCREF(disk_kind)
1739
if disk_kind == "directory":
1740
current_path_info = self._maybe_tree_ref(current_path_info)
1742
current_path_info = None
1743
while (current_entry is not None or current_path_info is not None):
1748
if current_entry is None:
1749
# unversioned - the check for path_handled when the path
1750
# is advanced will yield this path if needed.
1752
elif current_path_info is None:
1753
# no path is fine: the per entry code will handle it.
1754
result, changed = self._process_entry(current_entry,
1757
minikind = _minikind_from_string(
1758
current_entry[1][self.target_index][0])
1759
cmp_result = cmp(current_path_info[1], current_entry[0][1])
1760
if (cmp_result or minikind == c'a' or minikind == c'r'):
1761
# The current path on disk doesn't match the dirblock
1762
# record. Either the dirblock record is marked as
1763
# absent/renamed, or the file on disk is not present at all
1764
# in the dirblock. Either way, report about the dirblock
1765
# entry, and let other code handle the filesystem one.
1767
# Compare the basename for these files to determine
1770
# extra file on disk: pass for now, but only
1771
# increment the path, not the entry
1774
# entry referring to file not present on disk.
1775
# advance the entry only, after processing.
1776
result, changed = self._process_entry(current_entry,
1780
# paths are the same,and the dirstate entry is not
1781
# absent or renamed.
1782
result, changed = self._process_entry(current_entry,
1784
if changed is not None:
1786
if not changed and not self.include_unchanged:
1788
# >- loop control starts here:
1790
if advance_entry and current_entry is not None:
1791
self.current_block_pos = self.current_block_pos + 1
1792
if self.current_block_pos < PyList_GET_SIZE(self.current_block_list):
1793
current_entry = self.current_block_list[self.current_block_pos]
1795
current_entry = None
1797
if advance_path and current_path_info is not None:
1798
if not path_handled:
1799
# unversioned in all regards
1800
if self.want_unversioned:
1801
new_executable = bool(
1802
stat.S_ISREG(current_path_info[3].st_mode)
1803
and stat.S_IEXEC & current_path_info[3].st_mode)
1805
relpath_unicode = self.utf8_decode(current_path_info[0])[0]
1806
except UnicodeDecodeError:
1807
raise errors.BadFilenameEncoding(
1808
current_path_info[0], osutils._fs_enc)
1809
if changed is not None:
1810
raise AssertionError(
1811
"result is not None: %r" % result)
1813
(None, relpath_unicode),
1817
(None, self.utf8_decode(current_path_info[1])[0]),
1818
(None, current_path_info[2]),
1819
(None, new_executable))
1821
# dont descend into this unversioned path if it is
1823
if current_path_info[2] in ('directory'):
1824
del self.current_dir_list[self.path_index]
1825
self.path_index = self.path_index - 1
1826
# dont descend the disk iterator into any tree
1828
if current_path_info[2] == 'tree-reference':
1829
del self.current_dir_list[self.path_index]
1830
self.path_index = self.path_index - 1
1831
self.path_index = self.path_index + 1
1832
if self.path_index < len(self.current_dir_list):
1833
current_path_info = self.current_dir_list[self.path_index]
1834
if current_path_info[2] == 'directory':
1835
current_path_info = self._maybe_tree_ref(
1838
current_path_info = None
1839
if changed is not None:
1840
# Found a result on this pass, yield it
1842
self._gather_result_for_consistency(result)
1843
if changed or self.include_unchanged:
1845
if self.current_block is not None:
1846
self.block_index = self.block_index + 1
1847
self._update_current_block()
1848
if self.current_dir_info is not None:
1850
self.current_dir_list = None
1852
self.current_dir_info = self.dir_iterator.next()
1853
self.current_dir_list = self.current_dir_info[1]
1854
except StopIteration:
1855
self.current_dir_info = None
1857
cdef object _next_consistent_entries(self):
1858
"""Grabs the next specific file parent case to consider.
1860
:return: A list of the results, each of which is as for _process_entry.
1863
while self.search_specific_file_parents:
1864
# Process the parent directories for the paths we were iterating.
1865
# Even in extremely large trees this should be modest, so currently
1866
# no attempt is made to optimise.
1867
path_utf8 = self.search_specific_file_parents.pop()
1868
if path_utf8 in self.searched_exact_paths:
1869
# We've examined this path.
1871
if osutils.is_inside_any(self.searched_specific_files, path_utf8):
1872
# We've examined this path.
1874
path_entries = self.state._entries_for_path(path_utf8)
1875
# We need either one or two entries. If the path in
1876
# self.target_index has moved (so the entry in source_index is in
1877
# 'ar') then we need to also look for the entry for this path in
1878
# self.source_index, to output the appropriate delete-or-rename.
1879
selected_entries = []
1881
for candidate_entry in path_entries:
1882
# Find entries present in target at this path:
1883
if candidate_entry[1][self.target_index][0] not in 'ar':
1885
selected_entries.append(candidate_entry)
1886
# Find entries present in source at this path:
1887
elif (self.source_index is not None and
1888
candidate_entry[1][self.source_index][0] not in 'ar'):
1890
if candidate_entry[1][self.target_index][0] == 'a':
1891
# Deleted, emit it here.
1892
selected_entries.append(candidate_entry)
1894
# renamed, emit it when we process the directory it
1896
self.search_specific_file_parents.add(
1897
candidate_entry[1][self.target_index][1])
1899
raise AssertionError(
1900
"Missing entry for specific path parent %r, %r" % (
1901
path_utf8, path_entries))
1902
path_info = self._path_info(path_utf8, path_utf8.decode('utf8'))
1903
for entry in selected_entries:
1904
if entry[0][2] in self.seen_ids:
1906
result, changed = self._process_entry(entry, path_info)
1908
raise AssertionError(
1909
"Got entry<->path mismatch for specific path "
1910
"%r entry %r path_info %r " % (
1911
path_utf8, entry, path_info))
1912
# Only include changes - we're outside the users requested
1915
self._gather_result_for_consistency(result)
1916
if (result[6][0] == 'directory' and
1917
result[6][1] != 'directory'):
1918
# This stopped being a directory, the old children have
1920
if entry[1][self.source_index][0] == 'r':
1921
# renamed, take the source path
1922
entry_path_utf8 = entry[1][self.source_index][1]
1924
entry_path_utf8 = path_utf8
1925
initial_key = (entry_path_utf8, '', '')
1926
block_index, _ = self.state._find_block_index_from_key(
1928
if block_index == 0:
1929
# The children of the root are in block index 1.
1930
block_index = block_index + 1
1931
current_block = None
1932
if block_index < len(self.state._dirblocks):
1933
current_block = self.state._dirblocks[block_index]
1934
if not osutils.is_inside(
1935
entry_path_utf8, current_block[0]):
1936
# No entries for this directory at all.
1937
current_block = None
1938
if current_block is not None:
1939
for entry in current_block[1]:
1940
if entry[1][self.source_index][0] in 'ar':
1941
# Not in the source tree, so doesn't have to be
1944
# Path of the entry itself.
1945
self.search_specific_file_parents.add(
1946
self.pathjoin(*entry[0][:2]))
1947
if changed or self.include_unchanged:
1948
results.append((result, changed))
1949
self.searched_exact_paths.add(path_utf8)
1952
cdef object _path_info(self, utf8_path, unicode_path):
1953
"""Generate path_info for unicode_path.
1955
:return: None if unicode_path does not exist, or a path_info tuple.
1957
abspath = self.tree.abspath(unicode_path)
1959
stat = os.lstat(abspath)
1961
if e.errno == errno.ENOENT:
1962
# the path does not exist.
1966
utf8_basename = utf8_path.rsplit('/', 1)[-1]
1967
dir_info = (utf8_path, utf8_basename,
1968
osutils.file_kind_from_stat_mode(stat.st_mode), stat,
1970
if dir_info[2] == 'directory':
1971
if self.tree._directory_is_tree_reference(
1973
self.root_dir_info = self.root_dir_info[:2] + \
1974
('tree-reference',) + self.root_dir_info[3:]
added
removed
bzrlib/_dirstate_helpers_pyx.pyx
