2 from __future__ import absolute_import, print_function
3 from binascii import unhexlify
4 from collections import namedtuple
5 from errno import ELOOP, ENOTDIR
8 from random import Random, randint
9 from stat import S_IFDIR, S_IFLNK, S_IFREG, S_ISDIR, S_ISREG
10 from sys import stderr
13 from time import localtime, strftime, tzset
15 from wvpytest import *
17 from bup._helpers import write_random
18 from bup import git, metadata, vfs
19 from bup.compat import environ, fsencode, items, range
20 from bup.git import BUP_CHUNKED
21 from bup.helpers import exc, shstr
22 from bup.metadata import Metadata
23 from bup.repo import LocalRepo
24 from buptest import ex, exo
25 from buptest.vfs import tree_dict
27 lib_t_dir = os.path.dirname(fsencode(__file__))
28 top_dir = os.path.join(lib_t_dir, b'../..')
29 bup_path = top_dir + b'/bup'
31 def ex(cmd, **kwargs):
32 print(shstr(cmd), file=stderr)
33 return exc(cmd, **kwargs)
35 def test_default_modes():
36 wvpasseq(S_IFREG | 0o644, vfs.default_file_mode)
37 wvpasseq(S_IFDIR | 0o755, vfs.default_dir_mode)
38 wvpasseq(S_IFLNK | 0o755, vfs.default_symlink_mode)
40 def test_cache_behavior():
41 orig_max = vfs._cache_max_items
43 vfs._cache_max_items = 2
45 wvpasseq({}, vfs._cache)
46 wvpasseq([], vfs._cache_keys)
47 wvfail(vfs._cache_keys)
48 wvexcept(Exception, vfs.cache_notice, b'x', 1)
49 key_0 = b'itm:' + b'\0' * 20
50 key_1 = b'itm:' + b'\1' * 20
51 key_2 = b'itm:' + b'\2' * 20
52 vfs.cache_notice(key_0, b'something')
53 wvpasseq({key_0 : b'something'}, vfs._cache)
54 wvpasseq([key_0], vfs._cache_keys)
55 vfs.cache_notice(key_1, b'something else')
56 wvpasseq({key_0 : b'something', key_1 : b'something else'}, vfs._cache)
57 wvpasseq(frozenset([key_0, key_1]), frozenset(vfs._cache_keys))
58 vfs.cache_notice(key_2, b'and also')
59 wvpasseq(2, len(vfs._cache))
60 wvpass(frozenset(items(vfs._cache))
61 < frozenset(items({key_0 : b'something',
62 key_1 : b'something else',
63 key_2 : b'and also'})))
64 wvpasseq(2, len(vfs._cache_keys))
65 wvpass(frozenset(vfs._cache_keys) < frozenset([key_0, key_1, key_2]))
67 wvpasseq({}, vfs._cache)
68 wvpasseq([], vfs._cache_keys)
70 vfs._cache_max_items = orig_max
73 ## The clear_cache() calls below are to make sure that the test starts
74 ## from a known state since at the moment the cache entry for a given
75 ## item (like a commit) can change. For example, its meta value might
76 ## be promoted from a mode to a Metadata instance once the tree it
77 ## refers to is traversed.
79 def run_augment_item_meta_tests(repo,
81 link_path, link_target):
82 _, file_item = vfs.resolve(repo, file_path)[-1]
83 _, link_item = vfs.resolve(repo, link_path, follow=False)[-1]
84 wvpass(isinstance(file_item.meta, Metadata))
85 wvpass(isinstance(link_item.meta, Metadata))
86 # Note: normally, modifying item.meta values is forbidden
87 file_item.meta.size = file_item.meta.size or vfs.item_size(repo, file_item)
88 link_item.meta.size = link_item.meta.size or vfs.item_size(repo, link_item)
90 ## Ensure a fully populated item is left alone
91 augmented = vfs.augment_item_meta(repo, file_item)
92 wvpass(augmented is file_item)
93 wvpass(augmented.meta is file_item.meta)
94 augmented = vfs.augment_item_meta(repo, file_item, include_size=True)
95 wvpass(augmented is file_item)
96 wvpass(augmented.meta is file_item.meta)
98 ## Ensure a missing size is handled poperly
99 file_item.meta.size = None
100 augmented = vfs.augment_item_meta(repo, file_item)
101 wvpass(augmented is file_item)
102 wvpass(augmented.meta is file_item.meta)
103 augmented = vfs.augment_item_meta(repo, file_item, include_size=True)
104 wvpass(augmented is not file_item)
105 wvpasseq(file_size, augmented.meta.size)
107 ## Ensure a meta mode is handled properly
108 mode_item = file_item._replace(meta=vfs.default_file_mode)
109 augmented = vfs.augment_item_meta(repo, mode_item)
110 augmented_w_size = vfs.augment_item_meta(repo, mode_item, include_size=True)
111 for item in (augmented, augmented_w_size):
113 wvpass(item is not file_item)
114 wvpass(isinstance(meta, Metadata))
115 wvpasseq(vfs.default_file_mode, meta.mode)
116 wvpasseq((None, None, 0, 0, 0),
117 (meta.uid, meta.gid, meta.atime, meta.mtime, meta.ctime))
118 wvpass(augmented.meta.size is None)
119 wvpasseq(file_size, augmented_w_size.meta.size)
121 ## Ensure symlinks are handled properly
122 mode_item = link_item._replace(meta=vfs.default_symlink_mode)
123 augmented = vfs.augment_item_meta(repo, mode_item)
124 wvpass(augmented is not mode_item)
125 wvpass(isinstance(augmented.meta, Metadata))
126 wvpasseq(link_target, augmented.meta.symlink_target)
127 wvpasseq(len(link_target), augmented.meta.size)
128 augmented = vfs.augment_item_meta(repo, mode_item, include_size=True)
129 wvpass(augmented is not mode_item)
130 wvpass(isinstance(augmented.meta, Metadata))
131 wvpasseq(link_target, augmented.meta.symlink_target)
132 wvpasseq(len(link_target), augmented.meta.size)
135 def test_item_mode():
136 mode = S_IFDIR | 0o755
137 meta = metadata.from_path(b'.')
139 wvpasseq(mode, vfs.item_mode(vfs.Item(oid=oid, meta=mode)))
140 wvpasseq(meta.mode, vfs.item_mode(vfs.Item(oid=oid, meta=meta)))
142 def test_reverse_suffix_duplicates():
143 suffix = lambda x: tuple(vfs._reverse_suffix_duplicates(x))
144 wvpasseq((b'x',), suffix((b'x',)))
145 wvpasseq((b'x', b'y'), suffix((b'x', b'y')))
146 wvpasseq((b'x-1', b'x-0'), suffix((b'x',) * 2))
147 wvpasseq([b'x-%02d' % n for n in reversed(range(11))],
148 list(suffix((b'x',) * 11)))
149 wvpasseq((b'x-1', b'x-0', b'y'), suffix((b'x', b'x', b'y')))
150 wvpasseq((b'x', b'y-1', b'y-0'), suffix((b'x', b'y', b'y')))
151 wvpasseq((b'x', b'y-1', b'y-0', b'z'), suffix((b'x', b'y', b'y', b'z')))
153 def test_misc(tmpdir):
154 bup_dir = tmpdir + b'/bup'
155 environ[b'GIT_DIR'] = bup_dir
156 environ[b'BUP_DIR'] = bup_dir
157 git.repodir = bup_dir
158 data_path = tmpdir + b'/src'
160 with open(data_path + b'/file', 'wb+') as tmpfile:
161 tmpfile.write(b'canary\n')
162 symlink(b'file', data_path + b'/symlink')
163 ex((bup_path, b'init'))
164 ex((bup_path, b'index', b'-v', data_path))
165 ex((bup_path, b'save', b'-d', b'100000', b'-tvvn', b'test',
166 b'--strip', data_path))
169 ls_tree = exo((b'git', b'ls-tree', b'test', b'symlink')).out
170 mode, typ, oidx, name = ls_tree.strip().split(None, 3)
171 assert name == b'symlink'
172 link_item = vfs.Item(oid=unhexlify(oidx), meta=int(mode, 8))
173 wvpasseq(b'file', vfs.readlink(repo, link_item))
175 ls_tree = exo((b'git', b'ls-tree', b'test', b'file')).out
176 mode, typ, oidx, name = ls_tree.strip().split(None, 3)
177 assert name == b'file'
178 file_item = vfs.Item(oid=unhexlify(oidx), meta=int(mode, 8))
179 wvexcept(Exception, vfs.readlink, repo, file_item)
181 wvpasseq(4, vfs.item_size(repo, link_item))
182 wvpasseq(7, vfs.item_size(repo, file_item))
183 meta = metadata.from_path(fsencode(__file__))
185 fake_item = file_item._replace(meta=meta)
186 wvpasseq(42, vfs.item_size(repo, fake_item))
188 _, fakelink_item = vfs.resolve(repo, b'/test/latest', follow=False)[-1]
189 wvpasseq(17, vfs.item_size(repo, fakelink_item))
191 run_augment_item_meta_tests(repo,
192 b'/test/latest/file', 7,
193 b'/test/latest/symlink', b'file')
195 # FIXME: this caused StopIteration
196 #_, file_item = vfs.resolve(repo, '/file')[-1]
197 _, file_item = vfs.resolve(repo, b'/test/latest/file')[-1]
198 file_copy = vfs.copy_item(file_item)
199 wvpass(file_copy is not file_item)
200 wvpass(file_copy.meta is not file_item.meta)
201 wvpass(isinstance(file_copy, tuple))
202 wvpass(file_item.meta.user)
203 wvpass(file_copy.meta.user)
204 file_copy.meta.user = None
205 wvpass(file_item.meta.user)
207 def write_sized_random_content(parent_dir, size, seed):
209 with open(b'%s/%d' % (parent_dir, size), 'wb') as f:
210 write_random(f.fileno(), size, seed, verbose)
212 def validate_vfs_streaming_read(repo, item, expected_path, read_sizes):
213 for read_size in read_sizes:
214 with open(expected_path, 'rb') as expected:
215 with vfs.fopen(repo, item) as actual:
216 ex_buf = expected.read(read_size)
217 act_buf = actual.read(read_size)
218 while ex_buf and act_buf:
219 wvpassge(read_size, len(ex_buf))
220 wvpassge(read_size, len(act_buf))
221 wvpasseq(len(ex_buf), len(act_buf))
222 wvpass(ex_buf == act_buf)
223 ex_buf = expected.read(read_size)
224 act_buf = actual.read(read_size)
225 wvpasseq(b'', ex_buf)
226 wvpasseq(b'', act_buf)
228 def validate_vfs_seeking_read(repo, item, expected_path, read_sizes):
229 def read_act(act_pos):
230 with vfs.fopen(repo, item) as actual:
232 wvpasseq(act_pos, actual.tell())
233 act_buf = actual.read(read_size)
234 act_pos += len(act_buf)
235 wvpasseq(act_pos, actual.tell())
236 return act_pos, act_buf
238 for read_size in read_sizes:
239 with open(expected_path, 'rb') as expected:
240 ex_buf = expected.read(read_size)
244 act_pos, act_buf = read_act(act_pos)
245 wvpassge(read_size, len(ex_buf))
246 wvpassge(read_size, len(act_buf))
247 wvpasseq(len(ex_buf), len(act_buf))
248 wvpass(ex_buf == act_buf)
251 ex_buf = expected.read(read_size)
252 else: # hit expected eof first
253 act_pos, act_buf = read_act(act_pos)
254 wvpasseq(b'', ex_buf)
255 wvpasseq(b'', act_buf)
257 def test_read_and_seek(tmpdir):
258 # Write a set of randomly sized files containing random data whose
259 # names are their sizes, and then verify that what we get back
260 # from the vfs when seeking and reading with various block sizes
261 # matches the original content.
262 resolve = vfs.resolve
263 bup_dir = tmpdir + b'/bup'
264 environ[b'GIT_DIR'] = bup_dir
265 environ[b'BUP_DIR'] = bup_dir
266 git.repodir = bup_dir
268 data_path = tmpdir + b'/src'
270 seed = randint(-(1 << 31), (1 << 31) - 1)
273 print('test_read seed:', seed, file=sys.stderr)
274 max_size = 2 * 1024 * 1024
275 sizes = set((rand.randint(1, max_size) for _ in range(5)))
279 write_sized_random_content(data_path, size, seed)
280 ex((bup_path, b'init'))
281 ex((bup_path, b'index', b'-v', data_path))
282 ex((bup_path, b'save', b'-d', b'100000', b'-tvvn', b'test',
283 b'--strip', data_path))
284 read_sizes = set((rand.randint(1, max_size) for _ in range(10)))
287 print('test_read src sizes:', sizes, file=sys.stderr)
288 print('test_read read sizes:', read_sizes, file=sys.stderr)
290 res = resolve(repo, b'/test/latest/' + str(size).encode('ascii'))
292 wvpasseq(size, vfs.item_size(repo, res[-1][1]))
293 validate_vfs_streaming_read(repo, item,
294 b'%s/%d' % (data_path, size),
296 validate_vfs_seeking_read(repo, item,
297 b'%s/%d' % (data_path, size),
300 def test_contents_with_mismatched_bupm_git_ordering(tmpdir):
301 bup_dir = tmpdir + b'/bup'
302 environ[b'GIT_DIR'] = bup_dir
303 environ[b'BUP_DIR'] = bup_dir
304 git.repodir = bup_dir
305 data_path = tmpdir + b'/src'
307 os.mkdir(data_path + b'/foo')
308 with open(data_path + b'/foo.', 'wb+') as tmpfile:
309 tmpfile.write(b'canary\n')
310 ex((bup_path, b'init'))
311 ex((bup_path, b'index', b'-v', data_path))
313 save_name = strftime('%Y-%m-%d-%H%M%S', localtime(save_utc)).encode('ascii')
314 ex((bup_path, b'save', b'-tvvn', b'test', b'-d', b'%d' % save_utc,
315 b'--strip', data_path))
317 tip_sref = exo((b'git', b'show-ref', b'refs/heads/test')).out
318 tip_oidx = tip_sref.strip().split()[0]
319 tip_tree_oidx = exo((b'git', b'log', b'--pretty=%T', b'-n1',
320 tip_oidx)).out.strip()
321 tip_tree_oid = unhexlify(tip_tree_oidx)
322 tip_tree = tree_dict(repo, tip_tree_oid)
324 name, item = vfs.resolve(repo, b'/test/latest')[2]
325 wvpasseq(save_name, name)
326 expected = frozenset((x.name, vfs.Item(oid=x.oid, meta=x.meta))
327 for x in (tip_tree[name]
328 for name in (b'.', b'foo', b'foo.')))
329 contents = tuple(vfs.contents(repo, item))
330 wvpasseq(expected, frozenset(contents))
331 # Spot check, in case tree_dict shares too much code with the vfs
332 name, item = next(((n, i) for n, i in contents if n == b'foo'))
333 wvpass(S_ISDIR(item.meta))
334 name, item = next(((n, i) for n, i in contents if n == b'foo.'))
335 wvpass(S_ISREG(item.meta.mode))
337 def test_duplicate_save_dates(tmpdir):
338 bup_dir = tmpdir + b'/bup'
339 environ[b'GIT_DIR'] = bup_dir
340 environ[b'BUP_DIR'] = bup_dir
341 environ[b'TZ'] = b'UTC'
343 git.repodir = bup_dir
344 data_path = tmpdir + b'/src'
346 with open(data_path + b'/file', 'wb+') as tmpfile:
347 tmpfile.write(b'canary\n')
349 ex((bup_path, b'init'))
350 ex((bup_path, b'index', b'-v', data_path))
352 ex((bup_path, b'save', b'-d', b'100000', b'-n', b'test',
355 res = vfs.resolve(repo, b'/test')
356 wvpasseq(2, len(res))
357 name, revlist = res[-1]
358 wvpasseq(b'test', name)
360 b'1970-01-02-034640-00',
361 b'1970-01-02-034640-01',
362 b'1970-01-02-034640-02',
363 b'1970-01-02-034640-03',
364 b'1970-01-02-034640-04',
365 b'1970-01-02-034640-05',
366 b'1970-01-02-034640-06',
367 b'1970-01-02-034640-07',
368 b'1970-01-02-034640-08',
369 b'1970-01-02-034640-09',
370 b'1970-01-02-034640-10',
372 tuple(sorted(x[0] for x in vfs.contents(repo, revlist))))
374 def test_item_read_write():
375 x = vfs.Root(meta=13)
377 vfs.write_item(stream, x)
378 print('stream:', repr(stream.getvalue()), stream.tell(), file=sys.stderr)
380 wvpasseq(x, vfs.read_item(stream))