Show More
@@ -1,1458 +1,1460 b'' | |||
|
1 | 1 | # util.py - Mercurial utility functions and platform specfic implementations |
|
2 | 2 | # |
|
3 | 3 | # Copyright 2005 K. Thananchayan <thananck@yahoo.com> |
|
4 | 4 | # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
|
5 | 5 | # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
|
6 | 6 | # |
|
7 | 7 | # This software may be used and distributed according to the terms of the |
|
8 | 8 | # GNU General Public License version 2, incorporated herein by reference. |
|
9 | 9 | |
|
10 | 10 | """Mercurial utility functions and platform specfic implementations. |
|
11 | 11 | |
|
12 | 12 | This contains helper routines that are independent of the SCM core and |
|
13 | 13 | hide platform-specific details from the core. |
|
14 | 14 | """ |
|
15 | 15 | |
|
16 | 16 | from i18n import _ |
|
17 | 17 | import error, osutil |
|
18 | 18 | import cStringIO, errno, re, shutil, sys, tempfile, traceback |
|
19 | 19 | import os, stat, time, calendar, glob, random |
|
20 | 20 | import imp |
|
21 | 21 | |
|
22 | 22 | # Python compatibility |
|
23 | 23 | |
|
24 | 24 | def sha1(s): |
|
25 | 25 | return _fastsha1(s) |
|
26 | 26 | |
|
27 | 27 | def _fastsha1(s): |
|
28 | 28 | # This function will import sha1 from hashlib or sha (whichever is |
|
29 | 29 | # available) and overwrite itself with it on the first call. |
|
30 | 30 | # Subsequent calls will go directly to the imported function. |
|
31 | 31 | try: |
|
32 | 32 | from hashlib import sha1 as _sha1 |
|
33 | 33 | except ImportError: |
|
34 | 34 | from sha import sha as _sha1 |
|
35 | 35 | global _fastsha1, sha1 |
|
36 | 36 | _fastsha1 = sha1 = _sha1 |
|
37 | 37 | return _sha1(s) |
|
38 | 38 | |
|
39 | 39 | import subprocess |
|
40 | 40 | closefds = os.name == 'posix' |
|
41 | 41 | def popen2(cmd): |
|
42 | 42 | p = subprocess.Popen(cmd, shell=True, close_fds=closefds, |
|
43 | 43 | stdin=subprocess.PIPE, stdout=subprocess.PIPE) |
|
44 | 44 | return p.stdin, p.stdout |
|
45 | 45 | def popen3(cmd): |
|
46 | 46 | p = subprocess.Popen(cmd, shell=True, close_fds=closefds, |
|
47 | 47 | stdin=subprocess.PIPE, stdout=subprocess.PIPE, |
|
48 | 48 | stderr=subprocess.PIPE) |
|
49 | 49 | return p.stdin, p.stdout, p.stderr |
|
50 | 50 | |
|
51 | 51 | def version(): |
|
52 | 52 | """Return version information if available.""" |
|
53 | 53 | try: |
|
54 | 54 | import __version__ |
|
55 | 55 | return __version__.version |
|
56 | 56 | except ImportError: |
|
57 | 57 | return 'unknown' |
|
58 | 58 | |
|
59 | 59 | # used by parsedate |
|
60 | 60 | defaultdateformats = ( |
|
61 | 61 | '%Y-%m-%d %H:%M:%S', |
|
62 | 62 | '%Y-%m-%d %I:%M:%S%p', |
|
63 | 63 | '%Y-%m-%d %H:%M', |
|
64 | 64 | '%Y-%m-%d %I:%M%p', |
|
65 | 65 | '%Y-%m-%d', |
|
66 | 66 | '%m-%d', |
|
67 | 67 | '%m/%d', |
|
68 | 68 | '%m/%d/%y', |
|
69 | 69 | '%m/%d/%Y', |
|
70 | 70 | '%a %b %d %H:%M:%S %Y', |
|
71 | 71 | '%a %b %d %I:%M:%S%p %Y', |
|
72 | 72 | '%a, %d %b %Y %H:%M:%S', # GNU coreutils "/bin/date --rfc-2822" |
|
73 | 73 | '%b %d %H:%M:%S %Y', |
|
74 | 74 | '%b %d %I:%M:%S%p %Y', |
|
75 | 75 | '%b %d %H:%M:%S', |
|
76 | 76 | '%b %d %I:%M:%S%p', |
|
77 | 77 | '%b %d %H:%M', |
|
78 | 78 | '%b %d %I:%M%p', |
|
79 | 79 | '%b %d %Y', |
|
80 | 80 | '%b %d', |
|
81 | 81 | '%H:%M:%S', |
|
82 | 82 | '%I:%M:%SP', |
|
83 | 83 | '%H:%M', |
|
84 | 84 | '%I:%M%p', |
|
85 | 85 | ) |
|
86 | 86 | |
|
87 | 87 | extendeddateformats = defaultdateformats + ( |
|
88 | 88 | "%Y", |
|
89 | 89 | "%Y-%m", |
|
90 | 90 | "%b", |
|
91 | 91 | "%b %Y", |
|
92 | 92 | ) |
|
93 | 93 | |
|
94 | 94 | def cachefunc(func): |
|
95 | 95 | '''cache the result of function calls''' |
|
96 | 96 | # XXX doesn't handle keywords args |
|
97 | 97 | cache = {} |
|
98 | 98 | if func.func_code.co_argcount == 1: |
|
99 | 99 | # we gain a small amount of time because |
|
100 | 100 | # we don't need to pack/unpack the list |
|
101 | 101 | def f(arg): |
|
102 | 102 | if arg not in cache: |
|
103 | 103 | cache[arg] = func(arg) |
|
104 | 104 | return cache[arg] |
|
105 | 105 | else: |
|
106 | 106 | def f(*args): |
|
107 | 107 | if args not in cache: |
|
108 | 108 | cache[args] = func(*args) |
|
109 | 109 | return cache[args] |
|
110 | 110 | |
|
111 | 111 | return f |
|
112 | 112 | |
|
113 | 113 | class propertycache(object): |
|
114 | 114 | def __init__(self, func): |
|
115 | 115 | self.func = func |
|
116 | 116 | self.name = func.__name__ |
|
117 | 117 | def __get__(self, obj, type=None): |
|
118 | 118 | result = self.func(obj) |
|
119 | 119 | setattr(obj, self.name, result) |
|
120 | 120 | return result |
|
121 | 121 | |
|
122 | 122 | def pipefilter(s, cmd): |
|
123 | 123 | '''filter string S through command CMD, returning its output''' |
|
124 | 124 | p = subprocess.Popen(cmd, shell=True, close_fds=closefds, |
|
125 | 125 | stdin=subprocess.PIPE, stdout=subprocess.PIPE) |
|
126 | 126 | pout, perr = p.communicate(s) |
|
127 | 127 | return pout |
|
128 | 128 | |
|
129 | 129 | def tempfilter(s, cmd): |
|
130 | 130 | '''filter string S through a pair of temporary files with CMD. |
|
131 | 131 | CMD is used as a template to create the real command to be run, |
|
132 | 132 | with the strings INFILE and OUTFILE replaced by the real names of |
|
133 | 133 | the temporary files generated.''' |
|
134 | 134 | inname, outname = None, None |
|
135 | 135 | try: |
|
136 | 136 | infd, inname = tempfile.mkstemp(prefix='hg-filter-in-') |
|
137 | 137 | fp = os.fdopen(infd, 'wb') |
|
138 | 138 | fp.write(s) |
|
139 | 139 | fp.close() |
|
140 | 140 | outfd, outname = tempfile.mkstemp(prefix='hg-filter-out-') |
|
141 | 141 | os.close(outfd) |
|
142 | 142 | cmd = cmd.replace('INFILE', inname) |
|
143 | 143 | cmd = cmd.replace('OUTFILE', outname) |
|
144 | 144 | code = os.system(cmd) |
|
145 | 145 | if sys.platform == 'OpenVMS' and code & 1: |
|
146 | 146 | code = 0 |
|
147 | 147 | if code: raise Abort(_("command '%s' failed: %s") % |
|
148 | 148 | (cmd, explain_exit(code))) |
|
149 | 149 | return open(outname, 'rb').read() |
|
150 | 150 | finally: |
|
151 | 151 | try: |
|
152 | 152 | if inname: os.unlink(inname) |
|
153 | 153 | except: pass |
|
154 | 154 | try: |
|
155 | 155 | if outname: os.unlink(outname) |
|
156 | 156 | except: pass |
|
157 | 157 | |
|
158 | 158 | filtertable = { |
|
159 | 159 | 'tempfile:': tempfilter, |
|
160 | 160 | 'pipe:': pipefilter, |
|
161 | 161 | } |
|
162 | 162 | |
|
163 | 163 | def filter(s, cmd): |
|
164 | 164 | "filter a string through a command that transforms its input to its output" |
|
165 | 165 | for name, fn in filtertable.iteritems(): |
|
166 | 166 | if cmd.startswith(name): |
|
167 | 167 | return fn(s, cmd[len(name):].lstrip()) |
|
168 | 168 | return pipefilter(s, cmd) |
|
169 | 169 | |
|
170 | 170 | def binary(s): |
|
171 | 171 | """return true if a string is binary data""" |
|
172 | 172 | return bool(s and '\0' in s) |
|
173 | 173 | |
|
174 | 174 | def increasingchunks(source, min=1024, max=65536): |
|
175 | 175 | '''return no less than min bytes per chunk while data remains, |
|
176 | 176 | doubling min after each chunk until it reaches max''' |
|
177 | 177 | def log2(x): |
|
178 | 178 | if not x: |
|
179 | 179 | return 0 |
|
180 | 180 | i = 0 |
|
181 | 181 | while x: |
|
182 | 182 | x >>= 1 |
|
183 | 183 | i += 1 |
|
184 | 184 | return i - 1 |
|
185 | 185 | |
|
186 | 186 | buf = [] |
|
187 | 187 | blen = 0 |
|
188 | 188 | for chunk in source: |
|
189 | 189 | buf.append(chunk) |
|
190 | 190 | blen += len(chunk) |
|
191 | 191 | if blen >= min: |
|
192 | 192 | if min < max: |
|
193 | 193 | min = min << 1 |
|
194 | 194 | nmin = 1 << log2(blen) |
|
195 | 195 | if nmin > min: |
|
196 | 196 | min = nmin |
|
197 | 197 | if min > max: |
|
198 | 198 | min = max |
|
199 | 199 | yield ''.join(buf) |
|
200 | 200 | blen = 0 |
|
201 | 201 | buf = [] |
|
202 | 202 | if buf: |
|
203 | 203 | yield ''.join(buf) |
|
204 | 204 | |
|
205 | 205 | Abort = error.Abort |
|
206 | 206 | |
|
207 | 207 | def always(fn): return True |
|
208 | 208 | def never(fn): return False |
|
209 | 209 | |
|
210 | 210 | def patkind(name, default): |
|
211 | 211 | """Split a string into an optional pattern kind prefix and the |
|
212 | 212 | actual pattern.""" |
|
213 | 213 | for prefix in 're', 'glob', 'path', 'relglob', 'relpath', 'relre': |
|
214 | 214 | if name.startswith(prefix + ':'): return name.split(':', 1) |
|
215 | 215 | return default, name |
|
216 | 216 | |
|
217 | 217 | def globre(pat, head='^', tail='$'): |
|
218 | 218 | "convert a glob pattern into a regexp" |
|
219 | 219 | i, n = 0, len(pat) |
|
220 | 220 | res = '' |
|
221 | 221 | group = 0 |
|
222 | 222 | def peek(): return i < n and pat[i] |
|
223 | 223 | while i < n: |
|
224 | 224 | c = pat[i] |
|
225 | 225 | i = i+1 |
|
226 | 226 | if c == '*': |
|
227 | 227 | if peek() == '*': |
|
228 | 228 | i += 1 |
|
229 | 229 | res += '.*' |
|
230 | 230 | else: |
|
231 | 231 | res += '[^/]*' |
|
232 | 232 | elif c == '?': |
|
233 | 233 | res += '.' |
|
234 | 234 | elif c == '[': |
|
235 | 235 | j = i |
|
236 | 236 | if j < n and pat[j] in '!]': |
|
237 | 237 | j += 1 |
|
238 | 238 | while j < n and pat[j] != ']': |
|
239 | 239 | j += 1 |
|
240 | 240 | if j >= n: |
|
241 | 241 | res += '\\[' |
|
242 | 242 | else: |
|
243 | 243 | stuff = pat[i:j].replace('\\','\\\\') |
|
244 | 244 | i = j + 1 |
|
245 | 245 | if stuff[0] == '!': |
|
246 | 246 | stuff = '^' + stuff[1:] |
|
247 | 247 | elif stuff[0] == '^': |
|
248 | 248 | stuff = '\\' + stuff |
|
249 | 249 | res = '%s[%s]' % (res, stuff) |
|
250 | 250 | elif c == '{': |
|
251 | 251 | group += 1 |
|
252 | 252 | res += '(?:' |
|
253 | 253 | elif c == '}' and group: |
|
254 | 254 | res += ')' |
|
255 | 255 | group -= 1 |
|
256 | 256 | elif c == ',' and group: |
|
257 | 257 | res += '|' |
|
258 | 258 | elif c == '\\': |
|
259 | 259 | p = peek() |
|
260 | 260 | if p: |
|
261 | 261 | i += 1 |
|
262 | 262 | res += re.escape(p) |
|
263 | 263 | else: |
|
264 | 264 | res += re.escape(c) |
|
265 | 265 | else: |
|
266 | 266 | res += re.escape(c) |
|
267 | 267 | return head + res + tail |
|
268 | 268 | |
|
269 | 269 | _globchars = {'[': 1, '{': 1, '*': 1, '?': 1} |
|
270 | 270 | |
|
271 | 271 | def pathto(root, n1, n2): |
|
272 | 272 | '''return the relative path from one place to another. |
|
273 | 273 | root should use os.sep to separate directories |
|
274 | 274 | n1 should use os.sep to separate directories |
|
275 | 275 | n2 should use "/" to separate directories |
|
276 | 276 | returns an os.sep-separated path. |
|
277 | 277 | |
|
278 | 278 | If n1 is a relative path, it's assumed it's |
|
279 | 279 | relative to root. |
|
280 | 280 | n2 should always be relative to root. |
|
281 | 281 | ''' |
|
282 | 282 | if not n1: return localpath(n2) |
|
283 | 283 | if os.path.isabs(n1): |
|
284 | 284 | if os.path.splitdrive(root)[0] != os.path.splitdrive(n1)[0]: |
|
285 | 285 | return os.path.join(root, localpath(n2)) |
|
286 | 286 | n2 = '/'.join((pconvert(root), n2)) |
|
287 | 287 | a, b = splitpath(n1), n2.split('/') |
|
288 | 288 | a.reverse() |
|
289 | 289 | b.reverse() |
|
290 | 290 | while a and b and a[-1] == b[-1]: |
|
291 | 291 | a.pop() |
|
292 | 292 | b.pop() |
|
293 | 293 | b.reverse() |
|
294 | 294 | return os.sep.join((['..'] * len(a)) + b) or '.' |
|
295 | 295 | |
|
296 | 296 | def canonpath(root, cwd, myname): |
|
297 | 297 | """return the canonical path of myname, given cwd and root""" |
|
298 | 298 | if root == os.sep: |
|
299 | 299 | rootsep = os.sep |
|
300 | 300 | elif endswithsep(root): |
|
301 | 301 | rootsep = root |
|
302 | 302 | else: |
|
303 | 303 | rootsep = root + os.sep |
|
304 | 304 | name = myname |
|
305 | 305 | if not os.path.isabs(name): |
|
306 | 306 | name = os.path.join(root, cwd, name) |
|
307 | 307 | name = os.path.normpath(name) |
|
308 | 308 | audit_path = path_auditor(root) |
|
309 | 309 | if name != rootsep and name.startswith(rootsep): |
|
310 | 310 | name = name[len(rootsep):] |
|
311 | 311 | audit_path(name) |
|
312 | 312 | return pconvert(name) |
|
313 | 313 | elif name == root: |
|
314 | 314 | return '' |
|
315 | 315 | else: |
|
316 | 316 | # Determine whether `name' is in the hierarchy at or beneath `root', |
|
317 | 317 | # by iterating name=dirname(name) until that causes no change (can't |
|
318 | 318 | # check name == '/', because that doesn't work on windows). For each |
|
319 | 319 | # `name', compare dev/inode numbers. If they match, the list `rel' |
|
320 | 320 | # holds the reversed list of components making up the relative file |
|
321 | 321 | # name we want. |
|
322 | 322 | root_st = os.stat(root) |
|
323 | 323 | rel = [] |
|
324 | 324 | while True: |
|
325 | 325 | try: |
|
326 | 326 | name_st = os.stat(name) |
|
327 | 327 | except OSError: |
|
328 | 328 | break |
|
329 | 329 | if samestat(name_st, root_st): |
|
330 | 330 | if not rel: |
|
331 | 331 | # name was actually the same as root (maybe a symlink) |
|
332 | 332 | return '' |
|
333 | 333 | rel.reverse() |
|
334 | 334 | name = os.path.join(*rel) |
|
335 | 335 | audit_path(name) |
|
336 | 336 | return pconvert(name) |
|
337 | 337 | dirname, basename = os.path.split(name) |
|
338 | 338 | rel.append(basename) |
|
339 | 339 | if dirname == name: |
|
340 | 340 | break |
|
341 | 341 | name = dirname |
|
342 | 342 | |
|
343 | 343 | raise Abort('%s not under root' % myname) |
|
344 | 344 | |
|
345 | 345 | def matcher(canonroot, cwd='', names=[], inc=[], exc=[], src=None, dflt_pat='glob'): |
|
346 | 346 | """build a function to match a set of file patterns |
|
347 | 347 | |
|
348 | 348 | arguments: |
|
349 | 349 | canonroot - the canonical root of the tree you're matching against |
|
350 | 350 | cwd - the current working directory, if relevant |
|
351 | 351 | names - patterns to find |
|
352 | 352 | inc - patterns to include |
|
353 | 353 | exc - patterns to exclude |
|
354 | 354 | dflt_pat - if a pattern in names has no explicit type, assume this one |
|
355 | 355 | src - where these patterns came from (e.g. .hgignore) |
|
356 | 356 | |
|
357 | 357 | a pattern is one of: |
|
358 | 358 | 'glob:<glob>' - a glob relative to cwd |
|
359 | 359 | 're:<regexp>' - a regular expression |
|
360 | 360 | 'path:<path>' - a path relative to canonroot |
|
361 | 361 | 'relglob:<glob>' - an unrooted glob (*.c matches C files in all dirs) |
|
362 | 362 | 'relpath:<path>' - a path relative to cwd |
|
363 | 363 | 'relre:<regexp>' - a regexp that doesn't have to match the start of a name |
|
364 | 364 | '<something>' - one of the cases above, selected by the dflt_pat argument |
|
365 | 365 | |
|
366 | 366 | returns: |
|
367 | 367 | a 3-tuple containing |
|
368 | 368 | - list of roots (places where one should start a recursive walk of the fs); |
|
369 | 369 | this often matches the explicit non-pattern names passed in, but also |
|
370 | 370 | includes the initial part of glob: patterns that has no glob characters |
|
371 | 371 | - a bool match(filename) function |
|
372 | 372 | - a bool indicating if any patterns were passed in |
|
373 | 373 | """ |
|
374 | 374 | |
|
375 | 375 | # a common case: no patterns at all |
|
376 | 376 | if not names and not inc and not exc: |
|
377 | 377 | return [], always, False |
|
378 | 378 | |
|
379 | 379 | def contains_glob(name): |
|
380 | 380 | for c in name: |
|
381 | 381 | if c in _globchars: return True |
|
382 | 382 | return False |
|
383 | 383 | |
|
384 | 384 | def regex(kind, name, tail): |
|
385 | 385 | '''convert a pattern into a regular expression''' |
|
386 | 386 | if not name: |
|
387 | 387 | return '' |
|
388 | 388 | if kind == 're': |
|
389 | 389 | return name |
|
390 | 390 | elif kind == 'path': |
|
391 | 391 | return '^' + re.escape(name) + '(?:/|$)' |
|
392 | 392 | elif kind == 'relglob': |
|
393 | 393 | return globre(name, '(?:|.*/)', tail) |
|
394 | 394 | elif kind == 'relpath': |
|
395 | 395 | return re.escape(name) + '(?:/|$)' |
|
396 | 396 | elif kind == 'relre': |
|
397 | 397 | if name.startswith('^'): |
|
398 | 398 | return name |
|
399 | 399 | return '.*' + name |
|
400 | 400 | return globre(name, '', tail) |
|
401 | 401 | |
|
402 | 402 | def matchfn(pats, tail): |
|
403 | 403 | """build a matching function from a set of patterns""" |
|
404 | 404 | if not pats: |
|
405 | 405 | return |
|
406 | 406 | try: |
|
407 | 407 | pat = '(?:%s)' % '|'.join([regex(k, p, tail) for (k, p) in pats]) |
|
408 | 408 | if len(pat) > 20000: |
|
409 | 409 | raise OverflowError() |
|
410 | 410 | return re.compile(pat).match |
|
411 | 411 | except OverflowError: |
|
412 | 412 | # We're using a Python with a tiny regex engine and we |
|
413 | 413 | # made it explode, so we'll divide the pattern list in two |
|
414 | 414 | # until it works |
|
415 | 415 | l = len(pats) |
|
416 | 416 | if l < 2: |
|
417 | 417 | raise |
|
418 | 418 | a, b = matchfn(pats[:l//2], tail), matchfn(pats[l//2:], tail) |
|
419 | 419 | return lambda s: a(s) or b(s) |
|
420 | 420 | except re.error: |
|
421 | 421 | for k, p in pats: |
|
422 | 422 | try: |
|
423 | 423 | re.compile('(?:%s)' % regex(k, p, tail)) |
|
424 | 424 | except re.error: |
|
425 | 425 | if src: |
|
426 | 426 | raise Abort("%s: invalid pattern (%s): %s" % |
|
427 | 427 | (src, k, p)) |
|
428 | 428 | else: |
|
429 | 429 | raise Abort("invalid pattern (%s): %s" % (k, p)) |
|
430 | 430 | raise Abort("invalid pattern") |
|
431 | 431 | |
|
432 | 432 | def globprefix(pat): |
|
433 | 433 | '''return the non-glob prefix of a path, e.g. foo/* -> foo''' |
|
434 | 434 | root = [] |
|
435 | 435 | for p in pat.split('/'): |
|
436 | 436 | if contains_glob(p): break |
|
437 | 437 | root.append(p) |
|
438 | 438 | return '/'.join(root) or '.' |
|
439 | 439 | |
|
440 | 440 | def normalizepats(names, default): |
|
441 | 441 | pats = [] |
|
442 | 442 | roots = [] |
|
443 | 443 | anypats = False |
|
444 | 444 | for kind, name in [patkind(p, default) for p in names]: |
|
445 | 445 | if kind in ('glob', 'relpath'): |
|
446 | 446 | name = canonpath(canonroot, cwd, name) |
|
447 | 447 | elif kind in ('relglob', 'path'): |
|
448 | 448 | name = normpath(name) |
|
449 | 449 | |
|
450 | 450 | pats.append((kind, name)) |
|
451 | 451 | |
|
452 | 452 | if kind in ('glob', 're', 'relglob', 'relre'): |
|
453 | 453 | anypats = True |
|
454 | 454 | |
|
455 | 455 | if kind == 'glob': |
|
456 | 456 | root = globprefix(name) |
|
457 | 457 | roots.append(root) |
|
458 | 458 | elif kind in ('relpath', 'path'): |
|
459 | 459 | roots.append(name or '.') |
|
460 | 460 | elif kind == 'relglob': |
|
461 | 461 | roots.append('.') |
|
462 | 462 | return roots, pats, anypats |
|
463 | 463 | |
|
464 | 464 | roots, pats, anypats = normalizepats(names, dflt_pat) |
|
465 | 465 | |
|
466 | 466 | patmatch = matchfn(pats, '$') or always |
|
467 | 467 | incmatch = always |
|
468 | 468 | if inc: |
|
469 | 469 | dummy, inckinds, dummy = normalizepats(inc, 'glob') |
|
470 | 470 | incmatch = matchfn(inckinds, '(?:/|$)') |
|
471 | 471 | excmatch = never |
|
472 | 472 | if exc: |
|
473 | 473 | dummy, exckinds, dummy = normalizepats(exc, 'glob') |
|
474 | 474 | excmatch = matchfn(exckinds, '(?:/|$)') |
|
475 | 475 | |
|
476 | 476 | if not names and inc and not exc: |
|
477 | 477 | # common case: hgignore patterns |
|
478 | 478 | match = incmatch |
|
479 | 479 | else: |
|
480 | 480 | match = lambda fn: incmatch(fn) and not excmatch(fn) and patmatch(fn) |
|
481 | 481 | |
|
482 | 482 | return (roots, match, (inc or exc or anypats) and True) |
|
483 | 483 | |
|
484 | 484 | _hgexecutable = None |
|
485 | 485 | |
|
486 | 486 | def main_is_frozen(): |
|
487 | 487 | """return True if we are a frozen executable. |
|
488 | 488 | |
|
489 | 489 | The code supports py2exe (most common, Windows only) and tools/freeze |
|
490 | 490 | (portable, not much used). |
|
491 | 491 | """ |
|
492 | 492 | return (hasattr(sys, "frozen") or # new py2exe |
|
493 | 493 | hasattr(sys, "importers") or # old py2exe |
|
494 | 494 | imp.is_frozen("__main__")) # tools/freeze |
|
495 | 495 | |
|
496 | 496 | def hgexecutable(): |
|
497 | 497 | """return location of the 'hg' executable. |
|
498 | 498 | |
|
499 | 499 | Defaults to $HG or 'hg' in the search path. |
|
500 | 500 | """ |
|
501 | 501 | if _hgexecutable is None: |
|
502 | 502 | hg = os.environ.get('HG') |
|
503 | 503 | if hg: |
|
504 | 504 | set_hgexecutable(hg) |
|
505 | 505 | elif main_is_frozen(): |
|
506 | 506 | set_hgexecutable(sys.executable) |
|
507 | 507 | else: |
|
508 | 508 | set_hgexecutable(find_exe('hg') or 'hg') |
|
509 | 509 | return _hgexecutable |
|
510 | 510 | |
|
511 | 511 | def set_hgexecutable(path): |
|
512 | 512 | """set location of the 'hg' executable""" |
|
513 | 513 | global _hgexecutable |
|
514 | 514 | _hgexecutable = path |
|
515 | 515 | |
|
516 | 516 | def system(cmd, environ={}, cwd=None, onerr=None, errprefix=None): |
|
517 | 517 | '''enhanced shell command execution. |
|
518 | 518 | run with environment maybe modified, maybe in different dir. |
|
519 | 519 | |
|
520 | 520 | if command fails and onerr is None, return status. if ui object, |
|
521 | 521 | print error message and return status, else raise onerr object as |
|
522 | 522 | exception.''' |
|
523 | 523 | def py2shell(val): |
|
524 | 524 | 'convert python object into string that is useful to shell' |
|
525 | 525 | if val in (None, False): |
|
526 | 526 | return '0' |
|
527 | 527 | if val == True: |
|
528 | 528 | return '1' |
|
529 | 529 | return str(val) |
|
530 | 530 | oldenv = {} |
|
531 | 531 | for k in environ: |
|
532 | 532 | oldenv[k] = os.environ.get(k) |
|
533 | 533 | if cwd is not None: |
|
534 | 534 | oldcwd = os.getcwd() |
|
535 | 535 | origcmd = cmd |
|
536 | 536 | if os.name == 'nt': |
|
537 | 537 | cmd = '"%s"' % cmd |
|
538 | 538 | try: |
|
539 | 539 | for k, v in environ.iteritems(): |
|
540 | 540 | os.environ[k] = py2shell(v) |
|
541 | 541 | os.environ['HG'] = hgexecutable() |
|
542 | 542 | if cwd is not None and oldcwd != cwd: |
|
543 | 543 | os.chdir(cwd) |
|
544 | 544 | rc = os.system(cmd) |
|
545 | 545 | if sys.platform == 'OpenVMS' and rc & 1: |
|
546 | 546 | rc = 0 |
|
547 | 547 | if rc and onerr: |
|
548 | 548 | errmsg = '%s %s' % (os.path.basename(origcmd.split(None, 1)[0]), |
|
549 | 549 | explain_exit(rc)[0]) |
|
550 | 550 | if errprefix: |
|
551 | 551 | errmsg = '%s: %s' % (errprefix, errmsg) |
|
552 | 552 | try: |
|
553 | 553 | onerr.warn(errmsg + '\n') |
|
554 | 554 | except AttributeError: |
|
555 | 555 | raise onerr(errmsg) |
|
556 | 556 | return rc |
|
557 | 557 | finally: |
|
558 | 558 | for k, v in oldenv.iteritems(): |
|
559 | 559 | if v is None: |
|
560 | 560 | del os.environ[k] |
|
561 | 561 | else: |
|
562 | 562 | os.environ[k] = v |
|
563 | 563 | if cwd is not None and oldcwd != cwd: |
|
564 | 564 | os.chdir(oldcwd) |
|
565 | 565 | |
|
566 | 566 | def checksignature(func): |
|
567 | 567 | '''wrap a function with code to check for calling errors''' |
|
568 | 568 | def check(*args, **kwargs): |
|
569 | 569 | try: |
|
570 | 570 | return func(*args, **kwargs) |
|
571 | 571 | except TypeError: |
|
572 | 572 | if len(traceback.extract_tb(sys.exc_info()[2])) == 1: |
|
573 | 573 | raise error.SignatureError |
|
574 | 574 | raise |
|
575 | 575 | |
|
576 | 576 | return check |
|
577 | 577 | |
|
578 | 578 | # os.path.lexists is not available on python2.3 |
|
579 | 579 | def lexists(filename): |
|
580 | 580 | "test whether a file with this name exists. does not follow symlinks" |
|
581 | 581 | try: |
|
582 | 582 | os.lstat(filename) |
|
583 | 583 | except: |
|
584 | 584 | return False |
|
585 | 585 | return True |
|
586 | 586 | |
|
587 | 587 | def rename(src, dst): |
|
588 | 588 | """forcibly rename a file""" |
|
589 | 589 | try: |
|
590 | 590 | os.rename(src, dst) |
|
591 | 591 | except OSError, err: # FIXME: check err (EEXIST ?) |
|
592 | 592 | |
|
593 | 593 | # On windows, rename to existing file is not allowed, so we |
|
594 | 594 | # must delete destination first. But if a file is open, unlink |
|
595 | 595 | # schedules it for delete but does not delete it. Rename |
|
596 | 596 | # happens immediately even for open files, so we rename |
|
597 | 597 | # destination to a temporary name, then delete that. Then |
|
598 | 598 | # rename is safe to do. |
|
599 | 599 | # The temporary name is chosen at random to avoid the situation |
|
600 | 600 | # where a file is left lying around from a previous aborted run. |
|
601 | 601 | # The usual race condition this introduces can't be avoided as |
|
602 | 602 | # we need the name to rename into, and not the file itself. Due |
|
603 | 603 | # to the nature of the operation however, any races will at worst |
|
604 | 604 | # lead to the rename failing and the current operation aborting. |
|
605 | 605 | |
|
606 | 606 | def tempname(prefix): |
|
607 | 607 | for tries in xrange(10): |
|
608 | 608 | temp = '%s-%08x' % (prefix, random.randint(0, 0xffffffff)) |
|
609 | 609 | if not os.path.exists(temp): |
|
610 | 610 | return temp |
|
611 | 611 | raise IOError, (errno.EEXIST, "No usable temporary filename found") |
|
612 | 612 | |
|
613 | 613 | temp = tempname(dst) |
|
614 | 614 | os.rename(dst, temp) |
|
615 | 615 | os.unlink(temp) |
|
616 | 616 | os.rename(src, dst) |
|
617 | 617 | |
|
618 | 618 | def unlink(f): |
|
619 | 619 | """unlink and remove the directory if it is empty""" |
|
620 | 620 | os.unlink(f) |
|
621 | 621 | # try removing directories that might now be empty |
|
622 | 622 | try: |
|
623 | 623 | os.removedirs(os.path.dirname(f)) |
|
624 | 624 | except OSError: |
|
625 | 625 | pass |
|
626 | 626 | |
|
627 | 627 | def copyfile(src, dest): |
|
628 | 628 | "copy a file, preserving mode and atime/mtime" |
|
629 | 629 | if os.path.islink(src): |
|
630 | 630 | try: |
|
631 | 631 | os.unlink(dest) |
|
632 | 632 | except: |
|
633 | 633 | pass |
|
634 | 634 | os.symlink(os.readlink(src), dest) |
|
635 | 635 | else: |
|
636 | 636 | try: |
|
637 | 637 | shutil.copyfile(src, dest) |
|
638 | 638 | shutil.copystat(src, dest) |
|
639 | 639 | except shutil.Error, inst: |
|
640 | 640 | raise Abort(str(inst)) |
|
641 | 641 | |
|
642 | 642 | def copyfiles(src, dst, hardlink=None): |
|
643 | 643 | """Copy a directory tree using hardlinks if possible""" |
|
644 | 644 | |
|
645 | 645 | if hardlink is None: |
|
646 | 646 | hardlink = (os.stat(src).st_dev == |
|
647 | 647 | os.stat(os.path.dirname(dst)).st_dev) |
|
648 | 648 | |
|
649 | 649 | if os.path.isdir(src): |
|
650 | 650 | os.mkdir(dst) |
|
651 | 651 | for name, kind in osutil.listdir(src): |
|
652 | 652 | srcname = os.path.join(src, name) |
|
653 | 653 | dstname = os.path.join(dst, name) |
|
654 | 654 | copyfiles(srcname, dstname, hardlink) |
|
655 | 655 | else: |
|
656 | 656 | if hardlink: |
|
657 | 657 | try: |
|
658 | 658 | os_link(src, dst) |
|
659 | 659 | except (IOError, OSError): |
|
660 | 660 | hardlink = False |
|
661 | 661 | shutil.copy(src, dst) |
|
662 | 662 | else: |
|
663 | 663 | shutil.copy(src, dst) |
|
664 | 664 | |
|
665 | 665 | class path_auditor(object): |
|
666 | 666 | '''ensure that a filesystem path contains no banned components. |
|
667 | 667 | the following properties of a path are checked: |
|
668 | 668 | |
|
669 | 669 | - under top-level .hg |
|
670 | 670 | - starts at the root of a windows drive |
|
671 | 671 | - contains ".." |
|
672 | 672 | - traverses a symlink (e.g. a/symlink_here/b) |
|
673 | 673 | - inside a nested repository''' |
|
674 | 674 | |
|
675 | 675 | def __init__(self, root): |
|
676 | 676 | self.audited = set() |
|
677 | 677 | self.auditeddir = set() |
|
678 | 678 | self.root = root |
|
679 | 679 | |
|
680 | 680 | def __call__(self, path): |
|
681 | 681 | if path in self.audited: |
|
682 | 682 | return |
|
683 | 683 | normpath = os.path.normcase(path) |
|
684 | 684 | parts = splitpath(normpath) |
|
685 | 685 | if (os.path.splitdrive(path)[0] |
|
686 | 686 | or parts[0].lower() in ('.hg', '.hg.', '') |
|
687 | 687 | or os.pardir in parts): |
|
688 | 688 | raise Abort(_("path contains illegal component: %s") % path) |
|
689 | 689 | if '.hg' in path.lower(): |
|
690 | 690 | lparts = [p.lower() for p in parts] |
|
691 | 691 | for p in '.hg', '.hg.': |
|
692 | 692 | if p in lparts[1:]: |
|
693 | 693 | pos = lparts.index(p) |
|
694 | 694 | base = os.path.join(*parts[:pos]) |
|
695 | 695 | raise Abort(_('path %r is inside repo %r') % (path, base)) |
|
696 | 696 | def check(prefix): |
|
697 | 697 | curpath = os.path.join(self.root, prefix) |
|
698 | 698 | try: |
|
699 | 699 | st = os.lstat(curpath) |
|
700 | 700 | except OSError, err: |
|
701 | 701 | # EINVAL can be raised as invalid path syntax under win32. |
|
702 | 702 | # They must be ignored for patterns can be checked too. |
|
703 | 703 | if err.errno not in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL): |
|
704 | 704 | raise |
|
705 | 705 | else: |
|
706 | 706 | if stat.S_ISLNK(st.st_mode): |
|
707 | 707 | raise Abort(_('path %r traverses symbolic link %r') % |
|
708 | 708 | (path, prefix)) |
|
709 | 709 | elif (stat.S_ISDIR(st.st_mode) and |
|
710 | 710 | os.path.isdir(os.path.join(curpath, '.hg'))): |
|
711 | 711 | raise Abort(_('path %r is inside repo %r') % |
|
712 | 712 | (path, prefix)) |
|
713 | 713 | parts.pop() |
|
714 | 714 | prefixes = [] |
|
715 | 715 | for n in range(len(parts)): |
|
716 | 716 | prefix = os.sep.join(parts) |
|
717 | 717 | if prefix in self.auditeddir: |
|
718 | 718 | break |
|
719 | 719 | check(prefix) |
|
720 | 720 | prefixes.append(prefix) |
|
721 | 721 | parts.pop() |
|
722 | 722 | |
|
723 | 723 | self.audited.add(path) |
|
724 | 724 | # only add prefixes to the cache after checking everything: we don't |
|
725 | 725 | # want to add "foo/bar/baz" before checking if there's a "foo/.hg" |
|
726 | 726 | self.auditeddir.update(prefixes) |
|
727 | 727 | |
|
728 | 728 | def nlinks(pathname): |
|
729 | 729 | """Return number of hardlinks for the given file.""" |
|
730 | 730 | return os.lstat(pathname).st_nlink |
|
731 | 731 | |
|
732 | 732 | if hasattr(os, 'link'): |
|
733 | 733 | os_link = os.link |
|
734 | 734 | else: |
|
735 | 735 | def os_link(src, dst): |
|
736 | 736 | raise OSError(0, _("Hardlinks not supported")) |
|
737 | 737 | |
|
738 | 738 | def lookup_reg(key, name=None, scope=None): |
|
739 | 739 | return None |
|
740 | 740 | |
|
741 | 741 | if os.name == 'nt': |
|
742 | 742 | from windows import * |
|
743 | 743 | def expand_glob(pats): |
|
744 | 744 | '''On Windows, expand the implicit globs in a list of patterns''' |
|
745 | 745 | ret = [] |
|
746 | 746 | for p in pats: |
|
747 | 747 | kind, name = patkind(p, None) |
|
748 | 748 | if kind is None: |
|
749 | 749 | globbed = glob.glob(name) |
|
750 | 750 | if globbed: |
|
751 | 751 | ret.extend(globbed) |
|
752 | 752 | continue |
|
753 | 753 | # if we couldn't expand the glob, just keep it around |
|
754 | 754 | ret.append(p) |
|
755 | 755 | return ret |
|
756 | 756 | else: |
|
757 | 757 | from posix import * |
|
758 | 758 | |
|
759 | 759 | def makelock(info, pathname): |
|
760 | 760 | try: |
|
761 | 761 | return os.symlink(info, pathname) |
|
762 | 762 | except OSError, why: |
|
763 | 763 | if why.errno == errno.EEXIST: |
|
764 | 764 | raise |
|
765 | 765 | except AttributeError: # no symlink in os |
|
766 | 766 | pass |
|
767 | 767 | |
|
768 | 768 | ld = os.open(pathname, os.O_CREAT | os.O_WRONLY | os.O_EXCL) |
|
769 | 769 | os.write(ld, info) |
|
770 | 770 | os.close(ld) |
|
771 | 771 | |
|
772 | 772 | def readlock(pathname): |
|
773 | 773 | try: |
|
774 | 774 | return os.readlink(pathname) |
|
775 | 775 | except OSError, why: |
|
776 | 776 | if why.errno not in (errno.EINVAL, errno.ENOSYS): |
|
777 | 777 | raise |
|
778 | 778 | except AttributeError: # no symlink in os |
|
779 | 779 | pass |
|
780 | 780 | return posixfile(pathname).read() |
|
781 | 781 | |
|
782 | 782 | def fstat(fp): |
|
783 | 783 | '''stat file object that may not have fileno method.''' |
|
784 | 784 | try: |
|
785 | 785 | return os.fstat(fp.fileno()) |
|
786 | 786 | except AttributeError: |
|
787 | 787 | return os.stat(fp.name) |
|
788 | 788 | |
|
789 | 789 | # File system features |
|
790 | 790 | |
|
791 | 791 | def checkcase(path): |
|
792 | 792 | """ |
|
793 | 793 | Check whether the given path is on a case-sensitive filesystem |
|
794 | 794 | |
|
795 | 795 | Requires a path (like /foo/.hg) ending with a foldable final |
|
796 | 796 | directory component. |
|
797 | 797 | """ |
|
798 | 798 | s1 = os.stat(path) |
|
799 | 799 | d, b = os.path.split(path) |
|
800 | 800 | p2 = os.path.join(d, b.upper()) |
|
801 | 801 | if path == p2: |
|
802 | 802 | p2 = os.path.join(d, b.lower()) |
|
803 | 803 | try: |
|
804 | 804 | s2 = os.stat(p2) |
|
805 | 805 | if s2 == s1: |
|
806 | 806 | return False |
|
807 | 807 | return True |
|
808 | 808 | except: |
|
809 | 809 | return True |
|
810 | 810 | |
|
811 | 811 | _fspathcache = {} |
|
812 | 812 | def fspath(name, root): |
|
813 | 813 | '''Get name in the case stored in the filesystem |
|
814 | 814 | |
|
815 | 815 | The name is either relative to root, or it is an absolute path starting |
|
816 | 816 | with root. Note that this function is unnecessary, and should not be |
|
817 | 817 | called, for case-sensitive filesystems (simply because it's expensive). |
|
818 | 818 | ''' |
|
819 | 819 | # If name is absolute, make it relative |
|
820 | 820 | if name.lower().startswith(root.lower()): |
|
821 | 821 | l = len(root) |
|
822 | 822 | if name[l] == os.sep or name[l] == os.altsep: |
|
823 | 823 | l = l + 1 |
|
824 | 824 | name = name[l:] |
|
825 | 825 | |
|
826 | 826 | if not os.path.exists(os.path.join(root, name)): |
|
827 | 827 | return None |
|
828 | 828 | |
|
829 | 829 | seps = os.sep |
|
830 | 830 | if os.altsep: |
|
831 | 831 | seps = seps + os.altsep |
|
832 | 832 | # Protect backslashes. This gets silly very quickly. |
|
833 | 833 | seps.replace('\\','\\\\') |
|
834 | 834 | pattern = re.compile(r'([^%s]+)|([%s]+)' % (seps, seps)) |
|
835 | 835 | dir = os.path.normcase(os.path.normpath(root)) |
|
836 | 836 | result = [] |
|
837 | 837 | for part, sep in pattern.findall(name): |
|
838 | 838 | if sep: |
|
839 | 839 | result.append(sep) |
|
840 | 840 | continue |
|
841 | 841 | |
|
842 | 842 | if dir not in _fspathcache: |
|
843 | 843 | _fspathcache[dir] = os.listdir(dir) |
|
844 | 844 | contents = _fspathcache[dir] |
|
845 | 845 | |
|
846 | 846 | lpart = part.lower() |
|
847 | 847 | for n in contents: |
|
848 | 848 | if n.lower() == lpart: |
|
849 | 849 | result.append(n) |
|
850 | 850 | break |
|
851 | 851 | else: |
|
852 | 852 | # Cannot happen, as the file exists! |
|
853 | 853 | result.append(part) |
|
854 | 854 | dir = os.path.join(dir, lpart) |
|
855 | 855 | |
|
856 | 856 | return ''.join(result) |
|
857 | 857 | |
|
858 | 858 | def checkexec(path): |
|
859 | 859 | """ |
|
860 | 860 | Check whether the given path is on a filesystem with UNIX-like exec flags |
|
861 | 861 | |
|
862 | 862 | Requires a directory (like /foo/.hg) |
|
863 | 863 | """ |
|
864 | 864 | |
|
865 | 865 | # VFAT on some Linux versions can flip mode but it doesn't persist |
|
866 | 866 | # a FS remount. Frequently we can detect it if files are created |
|
867 | 867 | # with exec bit on. |
|
868 | 868 | |
|
869 | 869 | try: |
|
870 | 870 | EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
|
871 | 871 | fh, fn = tempfile.mkstemp("", "", path) |
|
872 | 872 | try: |
|
873 | 873 | os.close(fh) |
|
874 | 874 | m = os.stat(fn).st_mode & 0777 |
|
875 | 875 | new_file_has_exec = m & EXECFLAGS |
|
876 | 876 | os.chmod(fn, m ^ EXECFLAGS) |
|
877 | 877 | exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m) |
|
878 | 878 | finally: |
|
879 | 879 | os.unlink(fn) |
|
880 | 880 | except (IOError, OSError): |
|
881 | 881 | # we don't care, the user probably won't be able to commit anyway |
|
882 | 882 | return False |
|
883 | 883 | return not (new_file_has_exec or exec_flags_cannot_flip) |
|
884 | 884 | |
|
885 | 885 | def checklink(path): |
|
886 | 886 | """check whether the given path is on a symlink-capable filesystem""" |
|
887 | 887 | # mktemp is not racy because symlink creation will fail if the |
|
888 | 888 | # file already exists |
|
889 | 889 | name = tempfile.mktemp(dir=path) |
|
890 | 890 | try: |
|
891 | 891 | os.symlink(".", name) |
|
892 | 892 | os.unlink(name) |
|
893 | 893 | return True |
|
894 | 894 | except (OSError, AttributeError): |
|
895 | 895 | return False |
|
896 | 896 | |
|
897 | 897 | def needbinarypatch(): |
|
898 | 898 | """return True if patches should be applied in binary mode by default.""" |
|
899 | 899 | return os.name == 'nt' |
|
900 | 900 | |
|
901 | 901 | def endswithsep(path): |
|
902 | 902 | '''Check path ends with os.sep or os.altsep.''' |
|
903 | 903 | return path.endswith(os.sep) or os.altsep and path.endswith(os.altsep) |
|
904 | 904 | |
|
905 | 905 | def splitpath(path): |
|
906 | 906 | '''Split path by os.sep. |
|
907 | 907 | Note that this function does not use os.altsep because this is |
|
908 | 908 | an alternative of simple "xxx.split(os.sep)". |
|
909 | 909 | It is recommended to use os.path.normpath() before using this |
|
910 | 910 | function if need.''' |
|
911 | 911 | return path.split(os.sep) |
|
912 | 912 | |
|
913 | 913 | def gui(): |
|
914 | 914 | '''Are we running in a GUI?''' |
|
915 | 915 | return os.name == "nt" or os.name == "mac" or os.environ.get("DISPLAY") |
|
916 | 916 | |
|
917 | 917 | def mktempcopy(name, emptyok=False, createmode=None): |
|
918 | 918 | """Create a temporary file with the same contents from name |
|
919 | 919 | |
|
920 | 920 | The permission bits are copied from the original file. |
|
921 | 921 | |
|
922 | 922 | If the temporary file is going to be truncated immediately, you |
|
923 | 923 | can use emptyok=True as an optimization. |
|
924 | 924 | |
|
925 | 925 | Returns the name of the temporary file. |
|
926 | 926 | """ |
|
927 | 927 | d, fn = os.path.split(name) |
|
928 | 928 | fd, temp = tempfile.mkstemp(prefix='.%s-' % fn, dir=d) |
|
929 | 929 | os.close(fd) |
|
930 | 930 | # Temporary files are created with mode 0600, which is usually not |
|
931 | 931 | # what we want. If the original file already exists, just copy |
|
932 | 932 | # its mode. Otherwise, manually obey umask. |
|
933 | 933 | try: |
|
934 | 934 | st_mode = os.lstat(name).st_mode & 0777 |
|
935 | 935 | except OSError, inst: |
|
936 | 936 | if inst.errno != errno.ENOENT: |
|
937 | 937 | raise |
|
938 | 938 | st_mode = createmode |
|
939 | 939 | if st_mode is None: |
|
940 | 940 | st_mode = ~umask |
|
941 | 941 | st_mode &= 0666 |
|
942 | 942 | os.chmod(temp, st_mode) |
|
943 | 943 | if emptyok: |
|
944 | 944 | return temp |
|
945 | 945 | try: |
|
946 | 946 | try: |
|
947 | 947 | ifp = posixfile(name, "rb") |
|
948 | 948 | except IOError, inst: |
|
949 | 949 | if inst.errno == errno.ENOENT: |
|
950 | 950 | return temp |
|
951 | 951 | if not getattr(inst, 'filename', None): |
|
952 | 952 | inst.filename = name |
|
953 | 953 | raise |
|
954 | 954 | ofp = posixfile(temp, "wb") |
|
955 | 955 | for chunk in filechunkiter(ifp): |
|
956 | 956 | ofp.write(chunk) |
|
957 | 957 | ifp.close() |
|
958 | 958 | ofp.close() |
|
959 | 959 | except: |
|
960 | 960 | try: os.unlink(temp) |
|
961 | 961 | except: pass |
|
962 | 962 | raise |
|
963 | 963 | return temp |
|
964 | 964 | |
|
965 | 965 | class atomictempfile: |
|
966 | 966 | """file-like object that atomically updates a file |
|
967 | 967 | |
|
968 | 968 | All writes will be redirected to a temporary copy of the original |
|
969 | 969 | file. When rename is called, the copy is renamed to the original |
|
970 | 970 | name, making the changes visible. |
|
971 | 971 | """ |
|
972 | 972 | def __init__(self, name, mode, createmode): |
|
973 | 973 | self.__name = name |
|
974 | self._fp = None | |
|
974 | 975 | self.temp = mktempcopy(name, emptyok=('w' in mode), |
|
975 | 976 | createmode=createmode) |
|
976 | 977 | self._fp = posixfile(self.temp, mode) |
|
977 | 978 | |
|
978 | 979 | def __getattr__(self, name): |
|
979 | 980 | return getattr(self._fp, name) |
|
980 | 981 | |
|
981 | 982 | def rename(self): |
|
982 | 983 | if not self.closed: |
|
983 | 984 | self._fp.close() |
|
984 | 985 | rename(self.temp, localpath(self.__name)) |
|
985 | 986 | |
|
986 | 987 | def __del__(self): |
|
987 | 988 | if not self.closed: |
|
988 | 989 | try: |
|
989 | 990 | os.unlink(self.temp) |
|
990 | 991 | except: pass |
|
991 |
self._fp |
|
|
992 | if self._fp: | |
|
993 | self._fp.close() | |
|
992 | 994 | |
|
993 | 995 | def makedirs(name, mode=None): |
|
994 | 996 | """recursive directory creation with parent mode inheritance""" |
|
995 | 997 | try: |
|
996 | 998 | os.mkdir(name) |
|
997 | 999 | if mode is not None: |
|
998 | 1000 | os.chmod(name, mode) |
|
999 | 1001 | return |
|
1000 | 1002 | except OSError, err: |
|
1001 | 1003 | if err.errno == errno.EEXIST: |
|
1002 | 1004 | return |
|
1003 | 1005 | if err.errno != errno.ENOENT: |
|
1004 | 1006 | raise |
|
1005 | 1007 | parent = os.path.abspath(os.path.dirname(name)) |
|
1006 | 1008 | makedirs(parent, mode) |
|
1007 | 1009 | makedirs(name, mode) |
|
1008 | 1010 | |
|
1009 | 1011 | class opener(object): |
|
1010 | 1012 | """Open files relative to a base directory |
|
1011 | 1013 | |
|
1012 | 1014 | This class is used to hide the details of COW semantics and |
|
1013 | 1015 | remote file access from higher level code. |
|
1014 | 1016 | """ |
|
1015 | 1017 | def __init__(self, base, audit=True): |
|
1016 | 1018 | self.base = base |
|
1017 | 1019 | if audit: |
|
1018 | 1020 | self.audit_path = path_auditor(base) |
|
1019 | 1021 | else: |
|
1020 | 1022 | self.audit_path = always |
|
1021 | 1023 | self.createmode = None |
|
1022 | 1024 | |
|
1023 | 1025 | def __getattr__(self, name): |
|
1024 | 1026 | if name == '_can_symlink': |
|
1025 | 1027 | self._can_symlink = checklink(self.base) |
|
1026 | 1028 | return self._can_symlink |
|
1027 | 1029 | raise AttributeError(name) |
|
1028 | 1030 | |
|
1029 | 1031 | def _fixfilemode(self, name): |
|
1030 | 1032 | if self.createmode is None: |
|
1031 | 1033 | return |
|
1032 | 1034 | os.chmod(name, self.createmode & 0666) |
|
1033 | 1035 | |
|
1034 | 1036 | def __call__(self, path, mode="r", text=False, atomictemp=False): |
|
1035 | 1037 | self.audit_path(path) |
|
1036 | 1038 | f = os.path.join(self.base, path) |
|
1037 | 1039 | |
|
1038 | 1040 | if not text and "b" not in mode: |
|
1039 | 1041 | mode += "b" # for that other OS |
|
1040 | 1042 | |
|
1041 | 1043 | nlink = -1 |
|
1042 | 1044 | if mode not in ("r", "rb"): |
|
1043 | 1045 | try: |
|
1044 | 1046 | nlink = nlinks(f) |
|
1045 | 1047 | except OSError: |
|
1046 | 1048 | nlink = 0 |
|
1047 | 1049 | d = os.path.dirname(f) |
|
1048 | 1050 | if not os.path.isdir(d): |
|
1049 | 1051 | makedirs(d, self.createmode) |
|
1050 | 1052 | if atomictemp: |
|
1051 | 1053 | return atomictempfile(f, mode, self.createmode) |
|
1052 | 1054 | if nlink > 1: |
|
1053 | 1055 | rename(mktempcopy(f), f) |
|
1054 | 1056 | fp = posixfile(f, mode) |
|
1055 | 1057 | if nlink == 0: |
|
1056 | 1058 | self._fixfilemode(f) |
|
1057 | 1059 | return fp |
|
1058 | 1060 | |
|
1059 | 1061 | def symlink(self, src, dst): |
|
1060 | 1062 | self.audit_path(dst) |
|
1061 | 1063 | linkname = os.path.join(self.base, dst) |
|
1062 | 1064 | try: |
|
1063 | 1065 | os.unlink(linkname) |
|
1064 | 1066 | except OSError: |
|
1065 | 1067 | pass |
|
1066 | 1068 | |
|
1067 | 1069 | dirname = os.path.dirname(linkname) |
|
1068 | 1070 | if not os.path.exists(dirname): |
|
1069 | 1071 | makedirs(dirname, self.createmode) |
|
1070 | 1072 | |
|
1071 | 1073 | if self._can_symlink: |
|
1072 | 1074 | try: |
|
1073 | 1075 | os.symlink(src, linkname) |
|
1074 | 1076 | except OSError, err: |
|
1075 | 1077 | raise OSError(err.errno, _('could not symlink to %r: %s') % |
|
1076 | 1078 | (src, err.strerror), linkname) |
|
1077 | 1079 | else: |
|
1078 | 1080 | f = self(dst, "w") |
|
1079 | 1081 | f.write(src) |
|
1080 | 1082 | f.close() |
|
1081 | 1083 | self._fixfilemode(dst) |
|
1082 | 1084 | |
|
1083 | 1085 | class chunkbuffer(object): |
|
1084 | 1086 | """Allow arbitrary sized chunks of data to be efficiently read from an |
|
1085 | 1087 | iterator over chunks of arbitrary size.""" |
|
1086 | 1088 | |
|
1087 | 1089 | def __init__(self, in_iter): |
|
1088 | 1090 | """in_iter is the iterator that's iterating over the input chunks. |
|
1089 | 1091 | targetsize is how big a buffer to try to maintain.""" |
|
1090 | 1092 | self.iter = iter(in_iter) |
|
1091 | 1093 | self.buf = '' |
|
1092 | 1094 | self.targetsize = 2**16 |
|
1093 | 1095 | |
|
1094 | 1096 | def read(self, l): |
|
1095 | 1097 | """Read L bytes of data from the iterator of chunks of data. |
|
1096 | 1098 | Returns less than L bytes if the iterator runs dry.""" |
|
1097 | 1099 | if l > len(self.buf) and self.iter: |
|
1098 | 1100 | # Clamp to a multiple of self.targetsize |
|
1099 | 1101 | targetsize = max(l, self.targetsize) |
|
1100 | 1102 | collector = cStringIO.StringIO() |
|
1101 | 1103 | collector.write(self.buf) |
|
1102 | 1104 | collected = len(self.buf) |
|
1103 | 1105 | for chunk in self.iter: |
|
1104 | 1106 | collector.write(chunk) |
|
1105 | 1107 | collected += len(chunk) |
|
1106 | 1108 | if collected >= targetsize: |
|
1107 | 1109 | break |
|
1108 | 1110 | if collected < targetsize: |
|
1109 | 1111 | self.iter = False |
|
1110 | 1112 | self.buf = collector.getvalue() |
|
1111 | 1113 | if len(self.buf) == l: |
|
1112 | 1114 | s, self.buf = str(self.buf), '' |
|
1113 | 1115 | else: |
|
1114 | 1116 | s, self.buf = self.buf[:l], buffer(self.buf, l) |
|
1115 | 1117 | return s |
|
1116 | 1118 | |
|
1117 | 1119 | def filechunkiter(f, size=65536, limit=None): |
|
1118 | 1120 | """Create a generator that produces the data in the file size |
|
1119 | 1121 | (default 65536) bytes at a time, up to optional limit (default is |
|
1120 | 1122 | to read all data). Chunks may be less than size bytes if the |
|
1121 | 1123 | chunk is the last chunk in the file, or the file is a socket or |
|
1122 | 1124 | some other type of file that sometimes reads less data than is |
|
1123 | 1125 | requested.""" |
|
1124 | 1126 | assert size >= 0 |
|
1125 | 1127 | assert limit is None or limit >= 0 |
|
1126 | 1128 | while True: |
|
1127 | 1129 | if limit is None: nbytes = size |
|
1128 | 1130 | else: nbytes = min(limit, size) |
|
1129 | 1131 | s = nbytes and f.read(nbytes) |
|
1130 | 1132 | if not s: break |
|
1131 | 1133 | if limit: limit -= len(s) |
|
1132 | 1134 | yield s |
|
1133 | 1135 | |
|
1134 | 1136 | def makedate(): |
|
1135 | 1137 | lt = time.localtime() |
|
1136 | 1138 | if lt[8] == 1 and time.daylight: |
|
1137 | 1139 | tz = time.altzone |
|
1138 | 1140 | else: |
|
1139 | 1141 | tz = time.timezone |
|
1140 | 1142 | return time.mktime(lt), tz |
|
1141 | 1143 | |
|
1142 | 1144 | def datestr(date=None, format='%a %b %d %H:%M:%S %Y %1%2'): |
|
1143 | 1145 | """represent a (unixtime, offset) tuple as a localized time. |
|
1144 | 1146 | unixtime is seconds since the epoch, and offset is the time zone's |
|
1145 | 1147 | number of seconds away from UTC. if timezone is false, do not |
|
1146 | 1148 | append time zone to string.""" |
|
1147 | 1149 | t, tz = date or makedate() |
|
1148 | 1150 | if "%1" in format or "%2" in format: |
|
1149 | 1151 | sign = (tz > 0) and "-" or "+" |
|
1150 | 1152 | minutes = abs(tz) / 60 |
|
1151 | 1153 | format = format.replace("%1", "%c%02d" % (sign, minutes / 60)) |
|
1152 | 1154 | format = format.replace("%2", "%02d" % (minutes % 60)) |
|
1153 | 1155 | s = time.strftime(format, time.gmtime(float(t) - tz)) |
|
1154 | 1156 | return s |
|
1155 | 1157 | |
|
1156 | 1158 | def shortdate(date=None): |
|
1157 | 1159 | """turn (timestamp, tzoff) tuple into iso 8631 date.""" |
|
1158 | 1160 | return datestr(date, format='%Y-%m-%d') |
|
1159 | 1161 | |
|
1160 | 1162 | def strdate(string, format, defaults=[]): |
|
1161 | 1163 | """parse a localized time string and return a (unixtime, offset) tuple. |
|
1162 | 1164 | if the string cannot be parsed, ValueError is raised.""" |
|
1163 | 1165 | def timezone(string): |
|
1164 | 1166 | tz = string.split()[-1] |
|
1165 | 1167 | if tz[0] in "+-" and len(tz) == 5 and tz[1:].isdigit(): |
|
1166 | 1168 | sign = (tz[0] == "+") and 1 or -1 |
|
1167 | 1169 | hours = int(tz[1:3]) |
|
1168 | 1170 | minutes = int(tz[3:5]) |
|
1169 | 1171 | return -sign * (hours * 60 + minutes) * 60 |
|
1170 | 1172 | if tz == "GMT" or tz == "UTC": |
|
1171 | 1173 | return 0 |
|
1172 | 1174 | return None |
|
1173 | 1175 | |
|
1174 | 1176 | # NOTE: unixtime = localunixtime + offset |
|
1175 | 1177 | offset, date = timezone(string), string |
|
1176 | 1178 | if offset != None: |
|
1177 | 1179 | date = " ".join(string.split()[:-1]) |
|
1178 | 1180 | |
|
1179 | 1181 | # add missing elements from defaults |
|
1180 | 1182 | for part in defaults: |
|
1181 | 1183 | found = [True for p in part if ("%"+p) in format] |
|
1182 | 1184 | if not found: |
|
1183 | 1185 | date += "@" + defaults[part] |
|
1184 | 1186 | format += "@%" + part[0] |
|
1185 | 1187 | |
|
1186 | 1188 | timetuple = time.strptime(date, format) |
|
1187 | 1189 | localunixtime = int(calendar.timegm(timetuple)) |
|
1188 | 1190 | if offset is None: |
|
1189 | 1191 | # local timezone |
|
1190 | 1192 | unixtime = int(time.mktime(timetuple)) |
|
1191 | 1193 | offset = unixtime - localunixtime |
|
1192 | 1194 | else: |
|
1193 | 1195 | unixtime = localunixtime + offset |
|
1194 | 1196 | return unixtime, offset |
|
1195 | 1197 | |
|
1196 | 1198 | def parsedate(date, formats=None, defaults=None): |
|
1197 | 1199 | """parse a localized date/time string and return a (unixtime, offset) tuple. |
|
1198 | 1200 | |
|
1199 | 1201 | The date may be a "unixtime offset" string or in one of the specified |
|
1200 | 1202 | formats. If the date already is a (unixtime, offset) tuple, it is returned. |
|
1201 | 1203 | """ |
|
1202 | 1204 | if not date: |
|
1203 | 1205 | return 0, 0 |
|
1204 | 1206 | if isinstance(date, tuple) and len(date) == 2: |
|
1205 | 1207 | return date |
|
1206 | 1208 | if not formats: |
|
1207 | 1209 | formats = defaultdateformats |
|
1208 | 1210 | date = date.strip() |
|
1209 | 1211 | try: |
|
1210 | 1212 | when, offset = map(int, date.split(' ')) |
|
1211 | 1213 | except ValueError: |
|
1212 | 1214 | # fill out defaults |
|
1213 | 1215 | if not defaults: |
|
1214 | 1216 | defaults = {} |
|
1215 | 1217 | now = makedate() |
|
1216 | 1218 | for part in "d mb yY HI M S".split(): |
|
1217 | 1219 | if part not in defaults: |
|
1218 | 1220 | if part[0] in "HMS": |
|
1219 | 1221 | defaults[part] = "00" |
|
1220 | 1222 | else: |
|
1221 | 1223 | defaults[part] = datestr(now, "%" + part[0]) |
|
1222 | 1224 | |
|
1223 | 1225 | for format in formats: |
|
1224 | 1226 | try: |
|
1225 | 1227 | when, offset = strdate(date, format, defaults) |
|
1226 | 1228 | except (ValueError, OverflowError): |
|
1227 | 1229 | pass |
|
1228 | 1230 | else: |
|
1229 | 1231 | break |
|
1230 | 1232 | else: |
|
1231 | 1233 | raise Abort(_('invalid date: %r ') % date) |
|
1232 | 1234 | # validate explicit (probably user-specified) date and |
|
1233 | 1235 | # time zone offset. values must fit in signed 32 bits for |
|
1234 | 1236 | # current 32-bit linux runtimes. timezones go from UTC-12 |
|
1235 | 1237 | # to UTC+14 |
|
1236 | 1238 | if abs(when) > 0x7fffffff: |
|
1237 | 1239 | raise Abort(_('date exceeds 32 bits: %d') % when) |
|
1238 | 1240 | if offset < -50400 or offset > 43200: |
|
1239 | 1241 | raise Abort(_('impossible time zone offset: %d') % offset) |
|
1240 | 1242 | return when, offset |
|
1241 | 1243 | |
|
1242 | 1244 | def matchdate(date): |
|
1243 | 1245 | """Return a function that matches a given date match specifier |
|
1244 | 1246 | |
|
1245 | 1247 | Formats include: |
|
1246 | 1248 | |
|
1247 | 1249 | '{date}' match a given date to the accuracy provided |
|
1248 | 1250 | |
|
1249 | 1251 | '<{date}' on or before a given date |
|
1250 | 1252 | |
|
1251 | 1253 | '>{date}' on or after a given date |
|
1252 | 1254 | |
|
1253 | 1255 | """ |
|
1254 | 1256 | |
|
1255 | 1257 | def lower(date): |
|
1256 | 1258 | d = dict(mb="1", d="1") |
|
1257 | 1259 | return parsedate(date, extendeddateformats, d)[0] |
|
1258 | 1260 | |
|
1259 | 1261 | def upper(date): |
|
1260 | 1262 | d = dict(mb="12", HI="23", M="59", S="59") |
|
1261 | 1263 | for days in "31 30 29".split(): |
|
1262 | 1264 | try: |
|
1263 | 1265 | d["d"] = days |
|
1264 | 1266 | return parsedate(date, extendeddateformats, d)[0] |
|
1265 | 1267 | except: |
|
1266 | 1268 | pass |
|
1267 | 1269 | d["d"] = "28" |
|
1268 | 1270 | return parsedate(date, extendeddateformats, d)[0] |
|
1269 | 1271 | |
|
1270 | 1272 | date = date.strip() |
|
1271 | 1273 | if date[0] == "<": |
|
1272 | 1274 | when = upper(date[1:]) |
|
1273 | 1275 | return lambda x: x <= when |
|
1274 | 1276 | elif date[0] == ">": |
|
1275 | 1277 | when = lower(date[1:]) |
|
1276 | 1278 | return lambda x: x >= when |
|
1277 | 1279 | elif date[0] == "-": |
|
1278 | 1280 | try: |
|
1279 | 1281 | days = int(date[1:]) |
|
1280 | 1282 | except ValueError: |
|
1281 | 1283 | raise Abort(_("invalid day spec: %s") % date[1:]) |
|
1282 | 1284 | when = makedate()[0] - days * 3600 * 24 |
|
1283 | 1285 | return lambda x: x >= when |
|
1284 | 1286 | elif " to " in date: |
|
1285 | 1287 | a, b = date.split(" to ") |
|
1286 | 1288 | start, stop = lower(a), upper(b) |
|
1287 | 1289 | return lambda x: x >= start and x <= stop |
|
1288 | 1290 | else: |
|
1289 | 1291 | start, stop = lower(date), upper(date) |
|
1290 | 1292 | return lambda x: x >= start and x <= stop |
|
1291 | 1293 | |
|
1292 | 1294 | def shortuser(user): |
|
1293 | 1295 | """Return a short representation of a user name or email address.""" |
|
1294 | 1296 | f = user.find('@') |
|
1295 | 1297 | if f >= 0: |
|
1296 | 1298 | user = user[:f] |
|
1297 | 1299 | f = user.find('<') |
|
1298 | 1300 | if f >= 0: |
|
1299 | 1301 | user = user[f+1:] |
|
1300 | 1302 | f = user.find(' ') |
|
1301 | 1303 | if f >= 0: |
|
1302 | 1304 | user = user[:f] |
|
1303 | 1305 | f = user.find('.') |
|
1304 | 1306 | if f >= 0: |
|
1305 | 1307 | user = user[:f] |
|
1306 | 1308 | return user |
|
1307 | 1309 | |
|
1308 | 1310 | def email(author): |
|
1309 | 1311 | '''get email of author.''' |
|
1310 | 1312 | r = author.find('>') |
|
1311 | 1313 | if r == -1: r = None |
|
1312 | 1314 | return author[author.find('<')+1:r] |
|
1313 | 1315 | |
|
1314 | 1316 | def ellipsis(text, maxlength=400): |
|
1315 | 1317 | """Trim string to at most maxlength (default: 400) characters.""" |
|
1316 | 1318 | if len(text) <= maxlength: |
|
1317 | 1319 | return text |
|
1318 | 1320 | else: |
|
1319 | 1321 | return "%s..." % (text[:maxlength-3]) |
|
1320 | 1322 | |
|
1321 | 1323 | def walkrepos(path, followsym=False, seen_dirs=None, recurse=False): |
|
1322 | 1324 | '''yield every hg repository under path, recursively.''' |
|
1323 | 1325 | def errhandler(err): |
|
1324 | 1326 | if err.filename == path: |
|
1325 | 1327 | raise err |
|
1326 | 1328 | if followsym and hasattr(os.path, 'samestat'): |
|
1327 | 1329 | def _add_dir_if_not_there(dirlst, dirname): |
|
1328 | 1330 | match = False |
|
1329 | 1331 | samestat = os.path.samestat |
|
1330 | 1332 | dirstat = os.stat(dirname) |
|
1331 | 1333 | for lstdirstat in dirlst: |
|
1332 | 1334 | if samestat(dirstat, lstdirstat): |
|
1333 | 1335 | match = True |
|
1334 | 1336 | break |
|
1335 | 1337 | if not match: |
|
1336 | 1338 | dirlst.append(dirstat) |
|
1337 | 1339 | return not match |
|
1338 | 1340 | else: |
|
1339 | 1341 | followsym = False |
|
1340 | 1342 | |
|
1341 | 1343 | if (seen_dirs is None) and followsym: |
|
1342 | 1344 | seen_dirs = [] |
|
1343 | 1345 | _add_dir_if_not_there(seen_dirs, path) |
|
1344 | 1346 | for root, dirs, files in os.walk(path, topdown=True, onerror=errhandler): |
|
1345 | 1347 | if '.hg' in dirs: |
|
1346 | 1348 | yield root # found a repository |
|
1347 | 1349 | qroot = os.path.join(root, '.hg', 'patches') |
|
1348 | 1350 | if os.path.isdir(os.path.join(qroot, '.hg')): |
|
1349 | 1351 | yield qroot # we have a patch queue repo here |
|
1350 | 1352 | if recurse: |
|
1351 | 1353 | # avoid recursing inside the .hg directory |
|
1352 | 1354 | dirs.remove('.hg') |
|
1353 | 1355 | else: |
|
1354 | 1356 | dirs[:] = [] # don't descend further |
|
1355 | 1357 | elif followsym: |
|
1356 | 1358 | newdirs = [] |
|
1357 | 1359 | for d in dirs: |
|
1358 | 1360 | fname = os.path.join(root, d) |
|
1359 | 1361 | if _add_dir_if_not_there(seen_dirs, fname): |
|
1360 | 1362 | if os.path.islink(fname): |
|
1361 | 1363 | for hgname in walkrepos(fname, True, seen_dirs): |
|
1362 | 1364 | yield hgname |
|
1363 | 1365 | else: |
|
1364 | 1366 | newdirs.append(d) |
|
1365 | 1367 | dirs[:] = newdirs |
|
1366 | 1368 | |
|
1367 | 1369 | _rcpath = None |
|
1368 | 1370 | |
|
1369 | 1371 | def os_rcpath(): |
|
1370 | 1372 | '''return default os-specific hgrc search path''' |
|
1371 | 1373 | path = system_rcpath() |
|
1372 | 1374 | path.extend(user_rcpath()) |
|
1373 | 1375 | path = [os.path.normpath(f) for f in path] |
|
1374 | 1376 | return path |
|
1375 | 1377 | |
|
1376 | 1378 | def rcpath(): |
|
1377 | 1379 | '''return hgrc search path. if env var HGRCPATH is set, use it. |
|
1378 | 1380 | for each item in path, if directory, use files ending in .rc, |
|
1379 | 1381 | else use item. |
|
1380 | 1382 | make HGRCPATH empty to only look in .hg/hgrc of current repo. |
|
1381 | 1383 | if no HGRCPATH, use default os-specific path.''' |
|
1382 | 1384 | global _rcpath |
|
1383 | 1385 | if _rcpath is None: |
|
1384 | 1386 | if 'HGRCPATH' in os.environ: |
|
1385 | 1387 | _rcpath = [] |
|
1386 | 1388 | for p in os.environ['HGRCPATH'].split(os.pathsep): |
|
1387 | 1389 | if not p: continue |
|
1388 | 1390 | if os.path.isdir(p): |
|
1389 | 1391 | for f, kind in osutil.listdir(p): |
|
1390 | 1392 | if f.endswith('.rc'): |
|
1391 | 1393 | _rcpath.append(os.path.join(p, f)) |
|
1392 | 1394 | else: |
|
1393 | 1395 | _rcpath.append(p) |
|
1394 | 1396 | else: |
|
1395 | 1397 | _rcpath = os_rcpath() |
|
1396 | 1398 | return _rcpath |
|
1397 | 1399 | |
|
1398 | 1400 | def bytecount(nbytes): |
|
1399 | 1401 | '''return byte count formatted as readable string, with units''' |
|
1400 | 1402 | |
|
1401 | 1403 | units = ( |
|
1402 | 1404 | (100, 1<<30, _('%.0f GB')), |
|
1403 | 1405 | (10, 1<<30, _('%.1f GB')), |
|
1404 | 1406 | (1, 1<<30, _('%.2f GB')), |
|
1405 | 1407 | (100, 1<<20, _('%.0f MB')), |
|
1406 | 1408 | (10, 1<<20, _('%.1f MB')), |
|
1407 | 1409 | (1, 1<<20, _('%.2f MB')), |
|
1408 | 1410 | (100, 1<<10, _('%.0f KB')), |
|
1409 | 1411 | (10, 1<<10, _('%.1f KB')), |
|
1410 | 1412 | (1, 1<<10, _('%.2f KB')), |
|
1411 | 1413 | (1, 1, _('%.0f bytes')), |
|
1412 | 1414 | ) |
|
1413 | 1415 | |
|
1414 | 1416 | for multiplier, divisor, format in units: |
|
1415 | 1417 | if nbytes >= divisor * multiplier: |
|
1416 | 1418 | return format % (nbytes / float(divisor)) |
|
1417 | 1419 | return units[-1][2] % nbytes |
|
1418 | 1420 | |
|
1419 | 1421 | def drop_scheme(scheme, path): |
|
1420 | 1422 | sc = scheme + ':' |
|
1421 | 1423 | if path.startswith(sc): |
|
1422 | 1424 | path = path[len(sc):] |
|
1423 | 1425 | if path.startswith('//'): |
|
1424 | 1426 | path = path[2:] |
|
1425 | 1427 | return path |
|
1426 | 1428 | |
|
1427 | 1429 | def uirepr(s): |
|
1428 | 1430 | # Avoid double backslash in Windows path repr() |
|
1429 | 1431 | return repr(s).replace('\\\\', '\\') |
|
1430 | 1432 | |
|
1431 | 1433 | def termwidth(): |
|
1432 | 1434 | if 'COLUMNS' in os.environ: |
|
1433 | 1435 | try: |
|
1434 | 1436 | return int(os.environ['COLUMNS']) |
|
1435 | 1437 | except ValueError: |
|
1436 | 1438 | pass |
|
1437 | 1439 | try: |
|
1438 | 1440 | import termios, array, fcntl |
|
1439 | 1441 | for dev in (sys.stdout, sys.stdin): |
|
1440 | 1442 | try: |
|
1441 | 1443 | try: |
|
1442 | 1444 | fd = dev.fileno() |
|
1443 | 1445 | except AttributeError: |
|
1444 | 1446 | continue |
|
1445 | 1447 | if not os.isatty(fd): |
|
1446 | 1448 | continue |
|
1447 | 1449 | arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8) |
|
1448 | 1450 | return array.array('h', arri)[1] |
|
1449 | 1451 | except ValueError: |
|
1450 | 1452 | pass |
|
1451 | 1453 | except ImportError: |
|
1452 | 1454 | pass |
|
1453 | 1455 | return 80 |
|
1454 | 1456 | |
|
1455 | 1457 | def iterlines(iterator): |
|
1456 | 1458 | for chunk in iterator: |
|
1457 | 1459 | for line in chunk.splitlines(): |
|
1458 | 1460 | yield line |
General Comments 0
You need to be logged in to leave comments.
Login now