/usr/lib/python2.7/dist-packages/bzrlib/bzrdir.py is in python-bzrlib 2.7.0-2ubuntu3.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 | # Copyright (C) 2006-2011 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""BzrDir logic. The BzrDir is the basic control directory used by bzr.
At format 7 this was split out into Branch, Repository and Checkout control
directories.
Note: This module has a lot of ``open`` functions/methods that return
references to in-memory objects. As a rule, there are no matching ``close``
methods. To free any associated resources, simply stop referencing the
objects returned.
"""
from __future__ import absolute_import
import sys
from bzrlib.lazy_import import lazy_import
lazy_import(globals(), """
import bzrlib
from bzrlib import (
branch as _mod_branch,
cleanup,
errors,
fetch,
graph,
lockable_files,
lockdir,
osutils,
pyutils,
remote,
repository,
revision as _mod_revision,
transport as _mod_transport,
ui,
urlutils,
vf_search,
win32utils,
workingtree_3,
workingtree_4,
)
from bzrlib.branchfmt import fullhistory as fullhistorybranch
from bzrlib.repofmt import knitpack_repo
from bzrlib.transport import (
do_catching_redirections,
local,
)
from bzrlib.i18n import gettext
""")
from bzrlib.trace import (
mutter,
note,
)
from bzrlib import (
config,
controldir,
registry,
)
from bzrlib.symbol_versioning import (
deprecated_in,
deprecated_method,
)
class BzrDir(controldir.ControlDir):
"""A .bzr control diretory.
BzrDir instances let you create or open any of the things that can be
found within .bzr - checkouts, branches and repositories.
:ivar transport:
the transport which this bzr dir is rooted at (i.e. file:///.../.bzr/)
:ivar root_transport:
a transport connected to the directory this bzr was opened from
(i.e. the parent directory holding the .bzr directory).
Everything in the bzrdir should have the same file permissions.
:cvar hooks: An instance of BzrDirHooks.
"""
def break_lock(self):
"""Invoke break_lock on the first object in the bzrdir.
If there is a tree, the tree is opened and break_lock() called.
Otherwise, branch is tried, and finally repository.
"""
# XXX: This seems more like a UI function than something that really
# belongs in this class.
try:
thing_to_unlock = self.open_workingtree()
except (errors.NotLocalUrl, errors.NoWorkingTree):
try:
thing_to_unlock = self.open_branch()
except errors.NotBranchError:
try:
thing_to_unlock = self.open_repository()
except errors.NoRepositoryPresent:
return
thing_to_unlock.break_lock()
def check_conversion_target(self, target_format):
"""Check that a bzrdir as a whole can be converted to a new format."""
# The only current restriction is that the repository content can be
# fetched compatibly with the target.
target_repo_format = target_format.repository_format
try:
self.open_repository()._format.check_conversion_target(
target_repo_format)
except errors.NoRepositoryPresent:
# No repo, no problem.
pass
def clone_on_transport(self, transport, revision_id=None,
force_new_repo=False, preserve_stacking=False, stacked_on=None,
create_prefix=False, use_existing_dir=True, no_tree=False):
"""Clone this bzrdir and its contents to transport verbatim.
:param transport: The transport for the location to produce the clone
at. If the target directory does not exist, it will be created.
:param revision_id: The tip revision-id to use for any branch or
working tree. If not None, then the clone operation may tune
itself to download less data.
:param force_new_repo: Do not use a shared repository for the target,
even if one is available.
:param preserve_stacking: When cloning a stacked branch, stack the
new branch on top of the other branch's stacked-on branch.
:param create_prefix: Create any missing directories leading up to
to_transport.
:param use_existing_dir: Use an existing directory if one exists.
:param no_tree: If set to true prevents creation of a working tree.
"""
# Overview: put together a broad description of what we want to end up
# with; then make as few api calls as possible to do it.
# We may want to create a repo/branch/tree, if we do so what format
# would we want for each:
require_stacking = (stacked_on is not None)
format = self.cloning_metadir(require_stacking)
# Figure out what objects we want:
try:
local_repo = self.find_repository()
except errors.NoRepositoryPresent:
local_repo = None
try:
local_branch = self.open_branch()
except errors.NotBranchError:
local_branch = None
else:
# enable fallbacks when branch is not a branch reference
if local_branch.repository.has_same_location(local_repo):
local_repo = local_branch.repository
if preserve_stacking:
try:
stacked_on = local_branch.get_stacked_on_url()
except (errors.UnstackableBranchFormat,
errors.UnstackableRepositoryFormat,
errors.NotStacked):
pass
# Bug: We create a metadir without knowing if it can support stacking,
# we should look up the policy needs first, or just use it as a hint,
# or something.
if local_repo:
make_working_trees = local_repo.make_working_trees() and not no_tree
want_shared = local_repo.is_shared()
repo_format_name = format.repository_format.network_name()
else:
make_working_trees = False
want_shared = False
repo_format_name = None
result_repo, result, require_stacking, repository_policy = \
format.initialize_on_transport_ex(transport,
use_existing_dir=use_existing_dir, create_prefix=create_prefix,
force_new_repo=force_new_repo, stacked_on=stacked_on,
stack_on_pwd=self.root_transport.base,
repo_format_name=repo_format_name,
make_working_trees=make_working_trees, shared_repo=want_shared)
if repo_format_name:
try:
# If the result repository is in the same place as the
# resulting bzr dir, it will have no content, further if the
# result is not stacked then we know all content should be
# copied, and finally if we are copying up to a specific
# revision_id then we can use the pending-ancestry-result which
# does not require traversing all of history to describe it.
if (result_repo.user_url == result.user_url
and not require_stacking and
revision_id is not None):
fetch_spec = vf_search.PendingAncestryResult(
[revision_id], local_repo)
result_repo.fetch(local_repo, fetch_spec=fetch_spec)
else:
result_repo.fetch(local_repo, revision_id=revision_id)
finally:
result_repo.unlock()
else:
if result_repo is not None:
raise AssertionError('result_repo not None(%r)' % result_repo)
# 1 if there is a branch present
# make sure its content is available in the target repository
# clone it.
if local_branch is not None:
result_branch = local_branch.clone(result, revision_id=revision_id,
repository_policy=repository_policy)
try:
# Cheaper to check if the target is not local, than to try making
# the tree and fail.
result.root_transport.local_abspath('.')
if result_repo is None or result_repo.make_working_trees():
self.open_workingtree().clone(result, revision_id=revision_id)
except (errors.NoWorkingTree, errors.NotLocalUrl):
pass
return result
# TODO: This should be given a Transport, and should chdir up; otherwise
# this will open a new connection.
def _make_tail(self, url):
t = _mod_transport.get_transport(url)
t.ensure_base()
def determine_repository_policy(self, force_new_repo=False, stack_on=None,
stack_on_pwd=None, require_stacking=False):
"""Return an object representing a policy to use.
This controls whether a new repository is created, and the format of
that repository, or some existing shared repository used instead.
If stack_on is supplied, will not seek a containing shared repo.
:param force_new_repo: If True, require a new repository to be created.
:param stack_on: If supplied, the location to stack on. If not
supplied, a default_stack_on location may be used.
:param stack_on_pwd: If stack_on is relative, the location it is
relative to.
"""
def repository_policy(found_bzrdir):
stack_on = None
stack_on_pwd = None
config = found_bzrdir.get_config()
stop = False
stack_on = config.get_default_stack_on()
if stack_on is not None:
stack_on_pwd = found_bzrdir.user_url
stop = True
# does it have a repository ?
try:
repository = found_bzrdir.open_repository()
except errors.NoRepositoryPresent:
repository = None
else:
if (found_bzrdir.user_url != self.user_url
and not repository.is_shared()):
# Don't look higher, can't use a higher shared repo.
repository = None
stop = True
else:
stop = True
if not stop:
return None, False
if repository:
return UseExistingRepository(repository, stack_on,
stack_on_pwd, require_stacking=require_stacking), True
else:
return CreateRepository(self, stack_on, stack_on_pwd,
require_stacking=require_stacking), True
if not force_new_repo:
if stack_on is None:
policy = self._find_containing(repository_policy)
if policy is not None:
return policy
else:
try:
return UseExistingRepository(self.open_repository(),
stack_on, stack_on_pwd,
require_stacking=require_stacking)
except errors.NoRepositoryPresent:
pass
return CreateRepository(self, stack_on, stack_on_pwd,
require_stacking=require_stacking)
def _find_or_create_repository(self, force_new_repo):
"""Create a new repository if needed, returning the repository."""
policy = self.determine_repository_policy(force_new_repo)
return policy.acquire_repository()[0]
def _find_source_repo(self, add_cleanup, source_branch):
"""Find the source branch and repo for a sprout operation.
This is helper intended for use by _sprout.
:returns: (source_branch, source_repository). Either or both may be
None. If not None, they will be read-locked (and their unlock(s)
scheduled via the add_cleanup param).
"""
if source_branch is not None:
add_cleanup(source_branch.lock_read().unlock)
return source_branch, source_branch.repository
try:
source_branch = self.open_branch()
source_repository = source_branch.repository
except errors.NotBranchError:
source_branch = None
try:
source_repository = self.open_repository()
except errors.NoRepositoryPresent:
source_repository = None
else:
add_cleanup(source_repository.lock_read().unlock)
else:
add_cleanup(source_branch.lock_read().unlock)
return source_branch, source_repository
def sprout(self, url, revision_id=None, force_new_repo=False,
recurse='down', possible_transports=None,
accelerator_tree=None, hardlink=False, stacked=False,
source_branch=None, create_tree_if_local=True):
"""Create a copy of this controldir prepared for use as a new line of
development.
If url's last component does not exist, it will be created.
Attributes related to the identity of the source branch like
branch nickname will be cleaned, a working tree is created
whether one existed before or not; and a local branch is always
created.
if revision_id is not None, then the clone operation may tune
itself to download less data.
:param accelerator_tree: A tree which can be used for retrieving file
contents more quickly than the revision tree, i.e. a workingtree.
The revision tree will be used for cases where accelerator_tree's
content is different.
:param hardlink: If true, hard-link files from accelerator_tree,
where possible.
:param stacked: If true, create a stacked branch referring to the
location of this control directory.
:param create_tree_if_local: If true, a working-tree will be created
when working locally.
:return: The created control directory
"""
operation = cleanup.OperationWithCleanups(self._sprout)
return operation.run(url, revision_id=revision_id,
force_new_repo=force_new_repo, recurse=recurse,
possible_transports=possible_transports,
accelerator_tree=accelerator_tree, hardlink=hardlink,
stacked=stacked, source_branch=source_branch,
create_tree_if_local=create_tree_if_local)
def _sprout(self, op, url, revision_id=None, force_new_repo=False,
recurse='down', possible_transports=None,
accelerator_tree=None, hardlink=False, stacked=False,
source_branch=None, create_tree_if_local=True):
add_cleanup = op.add_cleanup
fetch_spec_factory = fetch.FetchSpecFactory()
if revision_id is not None:
fetch_spec_factory.add_revision_ids([revision_id])
fetch_spec_factory.source_branch_stop_revision_id = revision_id
if possible_transports is None:
possible_transports = []
else:
possible_transports = list(possible_transports) + [
self.root_transport]
target_transport = _mod_transport.get_transport(url,
possible_transports)
target_transport.ensure_base()
cloning_format = self.cloning_metadir(stacked)
# Create/update the result branch
try:
result = controldir.ControlDir.open_from_transport(target_transport)
except errors.NotBranchError:
result = cloning_format.initialize_on_transport(target_transport)
source_branch, source_repository = self._find_source_repo(
add_cleanup, source_branch)
fetch_spec_factory.source_branch = source_branch
# if a stacked branch wasn't requested, we don't create one
# even if the origin was stacked
if stacked and source_branch is not None:
stacked_branch_url = self.root_transport.base
else:
stacked_branch_url = None
repository_policy = result.determine_repository_policy(
force_new_repo, stacked_branch_url, require_stacking=stacked)
result_repo, is_new_repo = repository_policy.acquire_repository(
possible_transports=possible_transports)
add_cleanup(result_repo.lock_write().unlock)
fetch_spec_factory.source_repo = source_repository
fetch_spec_factory.target_repo = result_repo
if stacked or (len(result_repo._fallback_repositories) != 0):
target_repo_kind = fetch.TargetRepoKinds.STACKED
elif is_new_repo:
target_repo_kind = fetch.TargetRepoKinds.EMPTY
else:
target_repo_kind = fetch.TargetRepoKinds.PREEXISTING
fetch_spec_factory.target_repo_kind = target_repo_kind
if source_repository is not None:
fetch_spec = fetch_spec_factory.make_fetch_spec()
result_repo.fetch(source_repository, fetch_spec=fetch_spec)
if source_branch is None:
# this is for sprouting a controldir without a branch; is that
# actually useful?
# Not especially, but it's part of the contract.
result_branch = result.create_branch()
else:
result_branch = source_branch.sprout(result,
revision_id=revision_id, repository_policy=repository_policy,
repository=result_repo)
mutter("created new branch %r" % (result_branch,))
# Create/update the result working tree
if (create_tree_if_local and not result.has_workingtree() and
isinstance(target_transport, local.LocalTransport) and
(result_repo is None or result_repo.make_working_trees())):
wt = result.create_workingtree(accelerator_tree=accelerator_tree,
hardlink=hardlink, from_branch=result_branch)
wt.lock_write()
try:
if wt.path2id('') is None:
try:
wt.set_root_id(self.open_workingtree.get_root_id())
except errors.NoWorkingTree:
pass
finally:
wt.unlock()
else:
wt = None
if recurse == 'down':
basis = None
if wt is not None:
basis = wt.basis_tree()
elif result_branch is not None:
basis = result_branch.basis_tree()
elif source_branch is not None:
basis = source_branch.basis_tree()
if basis is not None:
add_cleanup(basis.lock_read().unlock)
subtrees = basis.iter_references()
else:
subtrees = []
for path, file_id in subtrees:
target = urlutils.join(url, urlutils.escape(path))
sublocation = source_branch.reference_parent(file_id, path)
sublocation.bzrdir.sprout(target,
basis.get_reference_revision(file_id, path),
force_new_repo=force_new_repo, recurse=recurse,
stacked=stacked)
return result
def _available_backup_name(self, base):
"""Find a non-existing backup file name based on base.
See bzrlib.osutils.available_backup_name about race conditions.
"""
return osutils.available_backup_name(base, self.root_transport.has)
def backup_bzrdir(self):
"""Backup this bzr control directory.
:return: Tuple with old path name and new path name
"""
pb = ui.ui_factory.nested_progress_bar()
try:
old_path = self.root_transport.abspath('.bzr')
backup_dir = self._available_backup_name('backup.bzr')
new_path = self.root_transport.abspath(backup_dir)
ui.ui_factory.note(gettext('making backup of {0}\n to {1}').format(
urlutils.unescape_for_display(old_path, 'utf-8'),
urlutils.unescape_for_display(new_path, 'utf-8')))
self.root_transport.copy_tree('.bzr', backup_dir)
return (old_path, new_path)
finally:
pb.finished()
def retire_bzrdir(self, limit=10000):
"""Permanently disable the bzrdir.
This is done by renaming it to give the user some ability to recover
if there was a problem.
This will have horrible consequences if anyone has anything locked or
in use.
:param limit: number of times to retry
"""
i = 0
while True:
try:
to_path = '.bzr.retired.%d' % i
self.root_transport.rename('.bzr', to_path)
note(gettext("renamed {0} to {1}").format(
self.root_transport.abspath('.bzr'), to_path))
return
except (errors.TransportError, IOError, errors.PathError):
i += 1
if i > limit:
raise
else:
pass
def _find_containing(self, evaluate):
"""Find something in a containing control directory.
This method will scan containing control dirs, until it finds what
it is looking for, decides that it will never find it, or runs out
of containing control directories to check.
It is used to implement find_repository and
determine_repository_policy.
:param evaluate: A function returning (value, stop). If stop is True,
the value will be returned.
"""
found_bzrdir = self
while True:
result, stop = evaluate(found_bzrdir)
if stop:
return result
next_transport = found_bzrdir.root_transport.clone('..')
if (found_bzrdir.user_url == next_transport.base):
# top of the file system
return None
# find the next containing bzrdir
try:
found_bzrdir = self.open_containing_from_transport(
next_transport)[0]
except errors.NotBranchError:
return None
def find_repository(self):
"""Find the repository that should be used.
This does not require a branch as we use it to find the repo for
new branches as well as to hook existing branches up to their
repository.
"""
def usable_repository(found_bzrdir):
# does it have a repository ?
try:
repository = found_bzrdir.open_repository()
except errors.NoRepositoryPresent:
return None, False
if found_bzrdir.user_url == self.user_url:
return repository, True
elif repository.is_shared():
return repository, True
else:
return None, True
found_repo = self._find_containing(usable_repository)
if found_repo is None:
raise errors.NoRepositoryPresent(self)
return found_repo
def _find_creation_modes(self):
"""Determine the appropriate modes for files and directories.
They're always set to be consistent with the base directory,
assuming that this transport allows setting modes.
"""
# TODO: Do we need or want an option (maybe a config setting) to turn
# this off or override it for particular locations? -- mbp 20080512
if self._mode_check_done:
return
self._mode_check_done = True
try:
st = self.transport.stat('.')
except errors.TransportNotPossible:
self._dir_mode = None
self._file_mode = None
else:
# Check the directory mode, but also make sure the created
# directories and files are read-write for this user. This is
# mostly a workaround for filesystems which lie about being able to
# write to a directory (cygwin & win32)
if (st.st_mode & 07777 == 00000):
# FTP allows stat but does not return dir/file modes
self._dir_mode = None
self._file_mode = None
else:
self._dir_mode = (st.st_mode & 07777) | 00700
# Remove the sticky and execute bits for files
self._file_mode = self._dir_mode & ~07111
def _get_file_mode(self):
"""Return Unix mode for newly created files, or None.
"""
if not self._mode_check_done:
self._find_creation_modes()
return self._file_mode
def _get_dir_mode(self):
"""Return Unix mode for newly created directories, or None.
"""
if not self._mode_check_done:
self._find_creation_modes()
return self._dir_mode
def get_config(self):
"""Get configuration for this BzrDir."""
return config.BzrDirConfig(self)
def _get_config(self):
"""By default, no configuration is available."""
return None
def __init__(self, _transport, _format):
"""Initialize a Bzr control dir object.
Only really common logic should reside here, concrete classes should be
made with varying behaviours.
:param _format: the format that is creating this BzrDir instance.
:param _transport: the transport this dir is based at.
"""
self._format = _format
# these are also under the more standard names of
# control_transport and user_transport
self.transport = _transport.clone('.bzr')
self.root_transport = _transport
self._mode_check_done = False
@property
def user_transport(self):
return self.root_transport
@property
def control_transport(self):
return self.transport
def is_control_filename(self, filename):
"""True if filename is the name of a path which is reserved for bzrdir's.
:param filename: A filename within the root transport of this bzrdir.
This is true IF and ONLY IF the filename is part of the namespace reserved
for bzr control dirs. Currently this is the '.bzr' directory in the root
of the root_transport.
"""
# this might be better on the BzrDirFormat class because it refers to
# all the possible bzrdir disk formats.
# This method is tested via the workingtree is_control_filename tests-
# it was extracted from WorkingTree.is_control_filename. If the method's
# contract is extended beyond the current trivial implementation, please
# add new tests for it to the appropriate place.
return filename == '.bzr' or filename.startswith('.bzr/')
def _cloning_metadir(self):
"""Produce a metadir suitable for cloning with.
:returns: (destination_bzrdir_format, source_repository)
"""
result_format = self._format.__class__()
try:
try:
branch = self.open_branch(ignore_fallbacks=True)
source_repository = branch.repository
result_format._branch_format = branch._format
except errors.NotBranchError:
source_branch = None
source_repository = self.open_repository()
except errors.NoRepositoryPresent:
source_repository = None
else:
# XXX TODO: This isinstance is here because we have not implemented
# the fix recommended in bug # 103195 - to delegate this choice the
# repository itself.
repo_format = source_repository._format
if isinstance(repo_format, remote.RemoteRepositoryFormat):
source_repository._ensure_real()
repo_format = source_repository._real_repository._format
result_format.repository_format = repo_format
try:
# TODO: Couldn't we just probe for the format in these cases,
# rather than opening the whole tree? It would be a little
# faster. mbp 20070401
tree = self.open_workingtree(recommend_upgrade=False)
except (errors.NoWorkingTree, errors.NotLocalUrl):
result_format.workingtree_format = None
else:
result_format.workingtree_format = tree._format.__class__()
return result_format, source_repository
def cloning_metadir(self, require_stacking=False):
"""Produce a metadir suitable for cloning or sprouting with.
These operations may produce workingtrees (yes, even though they're
"cloning" something that doesn't have a tree), so a viable workingtree
format must be selected.
:require_stacking: If True, non-stackable formats will be upgraded
to similar stackable formats.
:returns: a ControlDirFormat with all component formats either set
appropriately or set to None if that component should not be
created.
"""
format, repository = self._cloning_metadir()
if format._workingtree_format is None:
# No tree in self.
if repository is None:
# No repository either
return format
# We have a repository, so set a working tree? (Why? This seems to
# contradict the stated return value in the docstring).
tree_format = repository._format._matchingbzrdir.workingtree_format
format.workingtree_format = tree_format.__class__()
if require_stacking:
format.require_stacking()
return format
def get_branch_transport(self, branch_format, name=None):
"""Get the transport for use by branch format in this BzrDir.
Note that bzr dirs that do not support format strings will raise
IncompatibleFormat if the branch format they are given has
a format string, and vice versa.
If branch_format is None, the transport is returned with no
checking. If it is not None, then the returned transport is
guaranteed to point to an existing directory ready for use.
"""
raise NotImplementedError(self.get_branch_transport)
def get_repository_transport(self, repository_format):
"""Get the transport for use by repository format in this BzrDir.
Note that bzr dirs that do not support format strings will raise
IncompatibleFormat if the repository format they are given has
a format string, and vice versa.
If repository_format is None, the transport is returned with no
checking. If it is not None, then the returned transport is
guaranteed to point to an existing directory ready for use.
"""
raise NotImplementedError(self.get_repository_transport)
def get_workingtree_transport(self, tree_format):
"""Get the transport for use by workingtree format in this BzrDir.
Note that bzr dirs that do not support format strings will raise
IncompatibleFormat if the workingtree format they are given has a
format string, and vice versa.
If workingtree_format is None, the transport is returned with no
checking. If it is not None, then the returned transport is
guaranteed to point to an existing directory ready for use.
"""
raise NotImplementedError(self.get_workingtree_transport)
@classmethod
def create(cls, base, format=None, possible_transports=None):
"""Create a new BzrDir at the url 'base'.
:param format: If supplied, the format of branch to create. If not
supplied, the default is used.
:param possible_transports: If supplied, a list of transports that
can be reused to share a remote connection.
"""
if cls is not BzrDir:
raise AssertionError("BzrDir.create always creates the "
"default format, not one of %r" % cls)
return controldir.ControlDir.create(base, format=format,
possible_transports=possible_transports)
def __repr__(self):
return "<%s at %r>" % (self.__class__.__name__, self.user_url)
def update_feature_flags(self, updated_flags):
"""Update the features required by this bzrdir.
:param updated_flags: Dictionary mapping feature names to necessities
A necessity can be None to indicate the feature should be removed
"""
self.control_files.lock_write()
try:
self._format._update_feature_flags(updated_flags)
self.transport.put_bytes('branch-format', self._format.as_string())
finally:
self.control_files.unlock()
class BzrDirMeta1(BzrDir):
"""A .bzr meta version 1 control object.
This is the first control object where the
individual aspects are really split out: there are separate repository,
workingtree and branch subdirectories and any subset of the three can be
present within a BzrDir.
"""
def _get_branch_path(self, name):
"""Obtain the branch path to use.
This uses the API specified branch name first, and then falls back to
the branch name specified in the URL. If neither of those is specified,
it uses the default branch.
:param name: Optional branch name to use
:return: Relative path to branch
"""
if name == "":
return 'branch'
return urlutils.join('branches', name.encode("utf-8"))
def _read_branch_list(self):
"""Read the branch list.
:return: List of utf-8 encoded branch names.
"""
try:
f = self.control_transport.get('branch-list')
except errors.NoSuchFile:
return []
ret = []
try:
for name in f:
ret.append(name.rstrip("\n"))
finally:
f.close()
return ret
def _write_branch_list(self, branches):
"""Write out the branch list.
:param branches: List of utf-8 branch names to write
"""
self.transport.put_bytes('branch-list',
"".join([name+"\n" for name in branches]))
def __init__(self, _transport, _format):
super(BzrDirMeta1, self).__init__(_transport, _format)
self.control_files = lockable_files.LockableFiles(
self.control_transport, self._format._lock_file_name,
self._format._lock_class)
def can_convert_format(self):
"""See BzrDir.can_convert_format()."""
return True
def create_branch(self, name=None, repository=None,
append_revisions_only=None):
"""See ControlDir.create_branch."""
if name is None:
name = self._get_selected_branch()
return self._format.get_branch_format().initialize(self, name=name,
repository=repository,
append_revisions_only=append_revisions_only)
def destroy_branch(self, name=None):
"""See ControlDir.destroy_branch."""
if name is None:
name = self._get_selected_branch()
path = self._get_branch_path(name)
if name != "":
self.control_files.lock_write()
try:
branches = self._read_branch_list()
try:
branches.remove(name.encode("utf-8"))
except ValueError:
raise errors.NotBranchError(name)
self._write_branch_list(branches)
finally:
self.control_files.unlock()
try:
self.transport.delete_tree(path)
except errors.NoSuchFile:
raise errors.NotBranchError(path=urlutils.join(self.transport.base,
path), bzrdir=self)
def create_repository(self, shared=False):
"""See BzrDir.create_repository."""
return self._format.repository_format.initialize(self, shared)
def destroy_repository(self):
"""See BzrDir.destroy_repository."""
try:
self.transport.delete_tree('repository')
except errors.NoSuchFile:
raise errors.NoRepositoryPresent(self)
def create_workingtree(self, revision_id=None, from_branch=None,
accelerator_tree=None, hardlink=False):
"""See BzrDir.create_workingtree."""
return self._format.workingtree_format.initialize(
self, revision_id, from_branch=from_branch,
accelerator_tree=accelerator_tree, hardlink=hardlink)
def destroy_workingtree(self):
"""See BzrDir.destroy_workingtree."""
wt = self.open_workingtree(recommend_upgrade=False)
repository = wt.branch.repository
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
# We ignore the conflicts returned by wt.revert since we're about to
# delete the wt metadata anyway, all that should be left here are
# detritus. But see bug #634470 about subtree .bzr dirs.
conflicts = wt.revert(old_tree=empty)
self.destroy_workingtree_metadata()
def destroy_workingtree_metadata(self):
self.transport.delete_tree('checkout')
def find_branch_format(self, name=None):
"""Find the branch 'format' for this bzrdir.
This might be a synthetic object for e.g. RemoteBranch and SVN.
"""
from bzrlib.branch import BranchFormatMetadir
return BranchFormatMetadir.find_format(self, name=name)
def _get_mkdir_mode(self):
"""Figure out the mode to use when creating a bzrdir subdir."""
temp_control = lockable_files.LockableFiles(self.transport, '',
lockable_files.TransportLock)
return temp_control._dir_mode
def get_branch_reference(self, name=None):
"""See BzrDir.get_branch_reference()."""
from bzrlib.branch import BranchFormatMetadir
format = BranchFormatMetadir.find_format(self, name=name)
return format.get_reference(self, name=name)
def set_branch_reference(self, target_branch, name=None):
format = _mod_branch.BranchReferenceFormat()
return format.initialize(self, target_branch=target_branch, name=name)
def get_branch_transport(self, branch_format, name=None):
"""See BzrDir.get_branch_transport()."""
if name is None:
name = self._get_selected_branch()
path = self._get_branch_path(name)
# XXX: this shouldn't implicitly create the directory if it's just
# promising to get a transport -- mbp 20090727
if branch_format is None:
return self.transport.clone(path)
try:
branch_format.get_format_string()
except NotImplementedError:
raise errors.IncompatibleFormat(branch_format, self._format)
if name != "":
branches = self._read_branch_list()
utf8_name = name.encode("utf-8")
if not utf8_name in branches:
self.control_files.lock_write()
try:
branches = self._read_branch_list()
dirname = urlutils.dirname(utf8_name)
if dirname != "" and dirname in branches:
raise errors.ParentBranchExists(name)
child_branches = [
b.startswith(utf8_name+"/") for b in branches]
if any(child_branches):
raise errors.AlreadyBranchError(name)
branches.append(utf8_name)
self._write_branch_list(branches)
finally:
self.control_files.unlock()
branch_transport = self.transport.clone(path)
mode = self._get_mkdir_mode()
branch_transport.create_prefix(mode=mode)
try:
self.transport.mkdir(path, mode=mode)
except errors.FileExists:
pass
return self.transport.clone(path)
def get_repository_transport(self, repository_format):
"""See BzrDir.get_repository_transport()."""
if repository_format is None:
return self.transport.clone('repository')
try:
repository_format.get_format_string()
except NotImplementedError:
raise errors.IncompatibleFormat(repository_format, self._format)
try:
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
except errors.FileExists:
pass
return self.transport.clone('repository')
def get_workingtree_transport(self, workingtree_format):
"""See BzrDir.get_workingtree_transport()."""
if workingtree_format is None:
return self.transport.clone('checkout')
try:
workingtree_format.get_format_string()
except NotImplementedError:
raise errors.IncompatibleFormat(workingtree_format, self._format)
try:
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
except errors.FileExists:
pass
return self.transport.clone('checkout')
def get_branches(self):
"""See ControlDir.get_branches."""
ret = {}
try:
ret[""] = self.open_branch(name="")
except (errors.NotBranchError, errors.NoRepositoryPresent):
pass
for name in self._read_branch_list():
ret[name] = self.open_branch(name=name.decode('utf-8'))
return ret
def has_workingtree(self):
"""Tell if this bzrdir contains a working tree.
Note: if you're going to open the working tree, you should just go
ahead and try, and not ask permission first.
"""
from bzrlib.workingtree import WorkingTreeFormatMetaDir
try:
WorkingTreeFormatMetaDir.find_format_string(self)
except errors.NoWorkingTree:
return False
return True
def needs_format_conversion(self, format):
"""See BzrDir.needs_format_conversion()."""
if (not isinstance(self._format, format.__class__) or
self._format.get_format_string() != format.get_format_string()):
# it is not a meta dir format, conversion is needed.
return True
# we might want to push this down to the repository?
try:
if not isinstance(self.open_repository()._format,
format.repository_format.__class__):
# the repository needs an upgrade.
return True
except errors.NoRepositoryPresent:
pass
for branch in self.list_branches():
if not isinstance(branch._format,
format.get_branch_format().__class__):
# the branch needs an upgrade.
return True
try:
my_wt = self.open_workingtree(recommend_upgrade=False)
if not isinstance(my_wt._format,
format.workingtree_format.__class__):
# the workingtree needs an upgrade.
return True
except (errors.NoWorkingTree, errors.NotLocalUrl):
pass
return False
def open_branch(self, name=None, unsupported=False,
ignore_fallbacks=False, possible_transports=None):
"""See ControlDir.open_branch."""
if name is None:
name = self._get_selected_branch()
format = self.find_branch_format(name=name)
format.check_support_status(unsupported)
return format.open(self, name=name,
_found=True, ignore_fallbacks=ignore_fallbacks,
possible_transports=possible_transports)
def open_repository(self, unsupported=False):
"""See BzrDir.open_repository."""
from bzrlib.repository import RepositoryFormatMetaDir
format = RepositoryFormatMetaDir.find_format(self)
format.check_support_status(unsupported)
return format.open(self, _found=True)
def open_workingtree(self, unsupported=False,
recommend_upgrade=True):
"""See BzrDir.open_workingtree."""
from bzrlib.workingtree import WorkingTreeFormatMetaDir
format = WorkingTreeFormatMetaDir.find_format(self)
format.check_support_status(unsupported, recommend_upgrade,
basedir=self.root_transport.base)
return format.open(self, _found=True)
def _get_config(self):
return config.TransportConfig(self.transport, 'control.conf')
class BzrFormat(object):
"""Base class for all formats of things living in metadirs.
This class manages the format string that is stored in the 'format'
or 'branch-format' file.
All classes for (branch-, repository-, workingtree-) formats that
live in meta directories and have their own 'format' file
(i.e. different from .bzr/branch-format) derive from this class,
as well as the relevant base class for their kind
(BranchFormat, WorkingTreeFormat, RepositoryFormat).
Each format is identified by a "format" or "branch-format" file with a
single line containing the base format name and then an optional list of
feature flags.
Feature flags are supported as of bzr 2.5. Setting feature flags on formats
will render them inaccessible to older versions of bzr.
:ivar features: Dictionary mapping feature names to their necessity
"""
_present_features = set()
def __init__(self):
self.features = {}
@classmethod
def register_feature(cls, name):
"""Register a feature as being present.
:param name: Name of the feature
"""
if " " in name:
raise ValueError("spaces are not allowed in feature names")
if name in cls._present_features:
raise errors.FeatureAlreadyRegistered(name)
cls._present_features.add(name)
@classmethod
def unregister_feature(cls, name):
"""Unregister a feature."""
cls._present_features.remove(name)
def check_support_status(self, allow_unsupported, recommend_upgrade=True,
basedir=None):
for name, necessity in self.features.iteritems():
if name in self._present_features:
continue
if necessity == "optional":
mutter("ignoring optional missing feature %s", name)
continue
elif necessity == "required":
raise errors.MissingFeature(name)
else:
mutter("treating unknown necessity as require for %s",
name)
raise errors.MissingFeature(name)
@classmethod
def get_format_string(cls):
"""Return the ASCII format string that identifies this format."""
raise NotImplementedError(cls.get_format_string)
@classmethod
def from_string(cls, text):
format_string = cls.get_format_string()
if not text.startswith(format_string):
raise AssertionError("Invalid format header %r for %r" % (text, cls))
lines = text[len(format_string):].splitlines()
ret = cls()
for lineno, line in enumerate(lines):
try:
(necessity, feature) = line.split(" ", 1)
except ValueError:
raise errors.ParseFormatError(format=cls, lineno=lineno+2,
line=line, text=text)
ret.features[feature] = necessity
return ret
def as_string(self):
"""Return the string representation of this format.
"""
lines = [self.get_format_string()]
lines.extend([("%s %s\n" % (item[1], item[0])) for item in
self.features.iteritems()])
return "".join(lines)
@classmethod
def _find_format(klass, registry, kind, format_string):
try:
first_line = format_string[:format_string.index("\n")+1]
except ValueError:
first_line = format_string
try:
cls = registry.get(first_line)
except KeyError:
raise errors.UnknownFormatError(format=first_line, kind=kind)
return cls.from_string(format_string)
def network_name(self):
"""A simple byte string uniquely identifying this format for RPC calls.
Metadir branch formats use their format string.
"""
return self.as_string()
def __eq__(self, other):
return (self.__class__ is other.__class__ and
self.features == other.features)
def _update_feature_flags(self, updated_flags):
"""Update the feature flags in this format.
:param updated_flags: Updated feature flags
"""
for name, necessity in updated_flags.iteritems():
if necessity is None:
try:
del self.features[name]
except KeyError:
pass
else:
self.features[name] = necessity
class BzrProber(controldir.Prober):
"""Prober for formats that use a .bzr/ control directory."""
formats = registry.FormatRegistry(controldir.network_format_registry)
"""The known .bzr formats."""
@classmethod
def probe_transport(klass, transport):
"""Return the .bzrdir style format present in a directory."""
try:
format_string = transport.get_bytes(".bzr/branch-format")
except errors.NoSuchFile:
raise errors.NotBranchError(path=transport.base)
try:
first_line = format_string[:format_string.index("\n")+1]
except ValueError:
first_line = format_string
try:
cls = klass.formats.get(first_line)
except KeyError:
raise errors.UnknownFormatError(format=first_line, kind='bzrdir')
return cls.from_string(format_string)
@classmethod
def known_formats(cls):
result = set()
for name, format in cls.formats.iteritems():
if callable(format):
format = format()
result.add(format)
return result
controldir.ControlDirFormat.register_prober(BzrProber)
class RemoteBzrProber(controldir.Prober):
"""Prober for remote servers that provide a Bazaar smart server."""
@classmethod
def probe_transport(klass, transport):
"""Return a RemoteBzrDirFormat object if it looks possible."""
try:
medium = transport.get_smart_medium()
except (NotImplementedError, AttributeError,
errors.TransportNotPossible, errors.NoSmartMedium,
errors.SmartProtocolError):
# no smart server, so not a branch for this format type.
raise errors.NotBranchError(path=transport.base)
else:
# Decline to open it if the server doesn't support our required
# version (3) so that the VFS-based transport will do it.
if medium.should_probe():
try:
server_version = medium.protocol_version()
except errors.SmartProtocolError:
# Apparently there's no usable smart server there, even though
# the medium supports the smart protocol.
raise errors.NotBranchError(path=transport.base)
if server_version != '2':
raise errors.NotBranchError(path=transport.base)
from bzrlib.remote import RemoteBzrDirFormat
return RemoteBzrDirFormat()
@classmethod
def known_formats(cls):
from bzrlib.remote import RemoteBzrDirFormat
return set([RemoteBzrDirFormat()])
class BzrDirFormat(BzrFormat, controldir.ControlDirFormat):
"""ControlDirFormat base class for .bzr/ directories.
Formats are placed in a dict by their format string for reference
during bzrdir opening. These should be subclasses of BzrDirFormat
for consistency.
Once a format is deprecated, just deprecate the initialize and open
methods on the format class. Do not deprecate the object, as the
object will be created every system load.
"""
_lock_file_name = 'branch-lock'
# _lock_class must be set in subclasses to the lock type, typ.
# TransportLock or LockDir
def initialize_on_transport(self, transport):
"""Initialize a new bzrdir in the base directory of a Transport."""
try:
# can we hand off the request to the smart server rather than using
# vfs calls?
client_medium = transport.get_smart_medium()
except errors.NoSmartMedium:
return self._initialize_on_transport_vfs(transport)
else:
# Current RPC's only know how to create bzr metadir1 instances, so
# we still delegate to vfs methods if the requested format is not a
# metadir1
if type(self) != BzrDirMetaFormat1:
return self._initialize_on_transport_vfs(transport)
from bzrlib.remote import RemoteBzrDirFormat
remote_format = RemoteBzrDirFormat()
self._supply_sub_formats_to(remote_format)
return remote_format.initialize_on_transport(transport)
def initialize_on_transport_ex(self, transport, use_existing_dir=False,
create_prefix=False, force_new_repo=False, stacked_on=None,
stack_on_pwd=None, repo_format_name=None, make_working_trees=None,
shared_repo=False, vfs_only=False):
"""Create this format on transport.
The directory to initialize will be created.
:param force_new_repo: Do not use a shared repository for the target,
even if one is available.
:param create_prefix: Create any missing directories leading up to
to_transport.
:param use_existing_dir: Use an existing directory if one exists.
:param stacked_on: A url to stack any created branch on, None to follow
any target stacking policy.
:param stack_on_pwd: If stack_on is relative, the location it is
relative to.
:param repo_format_name: If non-None, a repository will be
made-or-found. Should none be found, or if force_new_repo is True
the repo_format_name is used to select the format of repository to
create.
:param make_working_trees: Control the setting of make_working_trees
for a new shared repository when one is made. None to use whatever
default the format has.
:param shared_repo: Control whether made repositories are shared or
not.
:param vfs_only: If True do not attempt to use a smart server
:return: repo, controldir, require_stacking, repository_policy. repo is
None if none was created or found, bzrdir is always valid.
require_stacking is the result of examining the stacked_on
parameter and any stacking policy found for the target.
"""
if not vfs_only:
# Try to hand off to a smart server
try:
client_medium = transport.get_smart_medium()
except errors.NoSmartMedium:
pass
else:
from bzrlib.remote import RemoteBzrDirFormat
# TODO: lookup the local format from a server hint.
remote_dir_format = RemoteBzrDirFormat()
remote_dir_format._network_name = self.network_name()
self._supply_sub_formats_to(remote_dir_format)
return remote_dir_format.initialize_on_transport_ex(transport,
use_existing_dir=use_existing_dir, create_prefix=create_prefix,
force_new_repo=force_new_repo, stacked_on=stacked_on,
stack_on_pwd=stack_on_pwd, repo_format_name=repo_format_name,
make_working_trees=make_working_trees, shared_repo=shared_repo)
# XXX: Refactor the create_prefix/no_create_prefix code into a
# common helper function
# The destination may not exist - if so make it according to policy.
def make_directory(transport):
transport.mkdir('.')
return transport
def redirected(transport, e, redirection_notice):
note(redirection_notice)
return transport._redirected_to(e.source, e.target)
try:
transport = do_catching_redirections(make_directory, transport,
redirected)
except errors.FileExists:
if not use_existing_dir:
raise
except errors.NoSuchFile:
if not create_prefix:
raise
transport.create_prefix()
require_stacking = (stacked_on is not None)
# Now the target directory exists, but doesn't have a .bzr
# directory. So we need to create it, along with any work to create
# all of the dependent branches, etc.
result = self.initialize_on_transport(transport)
if repo_format_name:
try:
# use a custom format
result._format.repository_format = \
repository.network_format_registry.get(repo_format_name)
except AttributeError:
# The format didn't permit it to be set.
pass
# A repository is desired, either in-place or shared.
repository_policy = result.determine_repository_policy(
force_new_repo, stacked_on, stack_on_pwd,
require_stacking=require_stacking)
result_repo, is_new_repo = repository_policy.acquire_repository(
make_working_trees, shared_repo)
if not require_stacking and repository_policy._require_stacking:
require_stacking = True
result._format.require_stacking()
result_repo.lock_write()
else:
result_repo = None
repository_policy = None
return result_repo, result, require_stacking, repository_policy
def _initialize_on_transport_vfs(self, transport):
"""Initialize a new bzrdir using VFS calls.
:param transport: The transport to create the .bzr directory in.
:return: A
"""
# Since we are creating a .bzr directory, inherit the
# mode from the root directory
temp_control = lockable_files.LockableFiles(transport,
'', lockable_files.TransportLock)
try:
temp_control._transport.mkdir('.bzr',
# FIXME: RBC 20060121 don't peek under
# the covers
mode=temp_control._dir_mode)
except errors.FileExists:
raise errors.AlreadyControlDirError(transport.base)
if sys.platform == 'win32' and isinstance(transport, local.LocalTransport):
win32utils.set_file_attr_hidden(transport._abspath('.bzr'))
file_mode = temp_control._file_mode
del temp_control
bzrdir_transport = transport.clone('.bzr')
utf8_files = [('README',
"This is a Bazaar control directory.\n"
"Do not change any files in this directory.\n"
"See http://bazaar.canonical.com/ for more information about Bazaar.\n"),
('branch-format', self.as_string()),
]
# NB: no need to escape relative paths that are url safe.
control_files = lockable_files.LockableFiles(bzrdir_transport,
self._lock_file_name, self._lock_class)
control_files.create_lock()
control_files.lock_write()
try:
for (filename, content) in utf8_files:
bzrdir_transport.put_bytes(filename, content,
mode=file_mode)
finally:
control_files.unlock()
return self.open(transport, _found=True)
def open(self, transport, _found=False):
"""Return an instance of this format for the dir transport points at.
_found is a private parameter, do not use it.
"""
if not _found:
found_format = controldir.ControlDirFormat.find_format(transport)
if not isinstance(found_format, self.__class__):
raise AssertionError("%s was asked to open %s, but it seems to need "
"format %s"
% (self, transport, found_format))
# Allow subclasses - use the found format.
self._supply_sub_formats_to(found_format)
return found_format._open(transport)
return self._open(transport)
def _open(self, transport):
"""Template method helper for opening BzrDirectories.
This performs the actual open and any additional logic or parameter
passing.
"""
raise NotImplementedError(self._open)
def _supply_sub_formats_to(self, other_format):
"""Give other_format the same values for sub formats as this has.
This method is expected to be used when parameterising a
RemoteBzrDirFormat instance with the parameters from a
BzrDirMetaFormat1 instance.
:param other_format: other_format is a format which should be
compatible with whatever sub formats are supported by self.
:return: None.
"""
other_format.features = dict(self.features)
def supports_transport(self, transport):
# bzr formats can be opened over all known transports
return True
def check_support_status(self, allow_unsupported, recommend_upgrade=True,
basedir=None):
controldir.ControlDirFormat.check_support_status(self,
allow_unsupported=allow_unsupported, recommend_upgrade=recommend_upgrade,
basedir=basedir)
BzrFormat.check_support_status(self, allow_unsupported=allow_unsupported,
recommend_upgrade=recommend_upgrade, basedir=basedir)
class BzrDirMetaFormat1(BzrDirFormat):
"""Bzr meta control format 1
This is the first format with split out working tree, branch and repository
disk storage.
It has:
- Format 3 working trees [optional]
- Format 5 branches [optional]
- Format 7 repositories [optional]
"""
_lock_class = lockdir.LockDir
fixed_components = False
colocated_branches = True
def __init__(self):
BzrDirFormat.__init__(self)
self._workingtree_format = None
self._branch_format = None
self._repository_format = None
def __eq__(self, other):
if other.__class__ is not self.__class__:
return False
if other.repository_format != self.repository_format:
return False
if other.workingtree_format != self.workingtree_format:
return False
if other.features != self.features:
return False
return True
def __ne__(self, other):
return not self == other
def get_branch_format(self):
if self._branch_format is None:
from bzrlib.branch import format_registry as branch_format_registry
self._branch_format = branch_format_registry.get_default()
return self._branch_format
def set_branch_format(self, format):
self._branch_format = format
def require_stacking(self, stack_on=None, possible_transports=None,
_skip_repo=False):
"""We have a request to stack, try to ensure the formats support it.
:param stack_on: If supplied, it is the URL to a branch that we want to
stack on. Check to see if that format supports stacking before
forcing an upgrade.
"""
# Stacking is desired. requested by the target, but does the place it
# points at support stacking? If it doesn't then we should
# not implicitly upgrade. We check this here.
new_repo_format = None
new_branch_format = None
# a bit of state for get_target_branch so that we don't try to open it
# 2 times, for both repo *and* branch
target = [None, False, None] # target_branch, checked, upgrade anyway
def get_target_branch():
if target[1]:
# We've checked, don't check again
return target
if stack_on is None:
# No target format, that means we want to force upgrading
target[:] = [None, True, True]
return target
try:
target_dir = BzrDir.open(stack_on,
possible_transports=possible_transports)
except errors.NotBranchError:
# Nothing there, don't change formats
target[:] = [None, True, False]
return target
except errors.JailBreak:
# JailBreak, JFDI and upgrade anyway
target[:] = [None, True, True]
return target
try:
target_branch = target_dir.open_branch()
except errors.NotBranchError:
# No branch, don't upgrade formats
target[:] = [None, True, False]
return target
target[:] = [target_branch, True, False]
return target
if (not _skip_repo and
not self.repository_format.supports_external_lookups):
# We need to upgrade the Repository.
target_branch, _, do_upgrade = get_target_branch()
if target_branch is None:
# We don't have a target branch, should we upgrade anyway?
if do_upgrade:
# stack_on is inaccessible, JFDI.
# TODO: bad monkey, hard-coded formats...
if self.repository_format.rich_root_data:
new_repo_format = knitpack_repo.RepositoryFormatKnitPack5RichRoot()
else:
new_repo_format = knitpack_repo.RepositoryFormatKnitPack5()
else:
# If the target already supports stacking, then we know the
# project is already able to use stacking, so auto-upgrade
# for them
new_repo_format = target_branch.repository._format
if not new_repo_format.supports_external_lookups:
# target doesn't, source doesn't, so don't auto upgrade
# repo
new_repo_format = None
if new_repo_format is not None:
self.repository_format = new_repo_format
note(gettext('Source repository format does not support stacking,'
' using format:\n %s'),
new_repo_format.get_format_description())
if not self.get_branch_format().supports_stacking():
# We just checked the repo, now lets check if we need to
# upgrade the branch format
target_branch, _, do_upgrade = get_target_branch()
if target_branch is None:
if do_upgrade:
# TODO: bad monkey, hard-coded formats...
from bzrlib.branch import BzrBranchFormat7
new_branch_format = BzrBranchFormat7()
else:
new_branch_format = target_branch._format
if not new_branch_format.supports_stacking():
new_branch_format = None
if new_branch_format is not None:
# Does support stacking, use its format.
self.set_branch_format(new_branch_format)
note(gettext('Source branch format does not support stacking,'
' using format:\n %s'),
new_branch_format.get_format_description())
def get_converter(self, format=None):
"""See BzrDirFormat.get_converter()."""
if format is None:
format = BzrDirFormat.get_default_format()
if (type(self) is BzrDirMetaFormat1 and
type(format) is BzrDirMetaFormat1Colo):
return ConvertMetaToColo(format)
if (type(self) is BzrDirMetaFormat1Colo and
type(format) is BzrDirMetaFormat1):
return ConvertMetaToColo(format)
if not isinstance(self, format.__class__):
# converting away from metadir is not implemented
raise NotImplementedError(self.get_converter)
return ConvertMetaToMeta(format)
@classmethod
def get_format_string(cls):
"""See BzrDirFormat.get_format_string()."""
return "Bazaar-NG meta directory, format 1\n"
def get_format_description(self):
"""See BzrDirFormat.get_format_description()."""
return "Meta directory format 1"
def _open(self, transport):
"""See BzrDirFormat._open."""
# Create a new format instance because otherwise initialisation of new
# metadirs share the global default format object leading to alias
# problems.
format = BzrDirMetaFormat1()
self._supply_sub_formats_to(format)
return BzrDirMeta1(transport, format)
def __return_repository_format(self):
"""Circular import protection."""
if self._repository_format:
return self._repository_format
from bzrlib.repository import format_registry
return format_registry.get_default()
def _set_repository_format(self, value):
"""Allow changing the repository format for metadir formats."""
self._repository_format = value
repository_format = property(__return_repository_format,
_set_repository_format)
def _supply_sub_formats_to(self, other_format):
"""Give other_format the same values for sub formats as this has.
This method is expected to be used when parameterising a
RemoteBzrDirFormat instance with the parameters from a
BzrDirMetaFormat1 instance.
:param other_format: other_format is a format which should be
compatible with whatever sub formats are supported by self.
:return: None.
"""
super(BzrDirMetaFormat1, self)._supply_sub_formats_to(other_format)
if getattr(self, '_repository_format', None) is not None:
other_format.repository_format = self.repository_format
if self._branch_format is not None:
other_format._branch_format = self._branch_format
if self._workingtree_format is not None:
other_format.workingtree_format = self.workingtree_format
def __get_workingtree_format(self):
if self._workingtree_format is None:
from bzrlib.workingtree import (
format_registry as wt_format_registry,
)
self._workingtree_format = wt_format_registry.get_default()
return self._workingtree_format
def __set_workingtree_format(self, wt_format):
self._workingtree_format = wt_format
def __repr__(self):
return "<%r>" % (self.__class__.__name__,)
workingtree_format = property(__get_workingtree_format,
__set_workingtree_format)
# Register bzr formats
BzrProber.formats.register(BzrDirMetaFormat1.get_format_string(),
BzrDirMetaFormat1)
controldir.ControlDirFormat._default_format = BzrDirMetaFormat1()
class BzrDirMetaFormat1Colo(BzrDirMetaFormat1):
"""BzrDirMeta1 format with support for colocated branches."""
colocated_branches = True
@classmethod
def get_format_string(cls):
"""See BzrDirFormat.get_format_string()."""
return "Bazaar meta directory, format 1 (with colocated branches)\n"
def get_format_description(self):
"""See BzrDirFormat.get_format_description()."""
return "Meta directory format 1 with support for colocated branches"
def _open(self, transport):
"""See BzrDirFormat._open."""
# Create a new format instance because otherwise initialisation of new
# metadirs share the global default format object leading to alias
# problems.
format = BzrDirMetaFormat1Colo()
self._supply_sub_formats_to(format)
return BzrDirMeta1(transport, format)
BzrProber.formats.register(BzrDirMetaFormat1Colo.get_format_string(),
BzrDirMetaFormat1Colo)
class ConvertMetaToMeta(controldir.Converter):
"""Converts the components of metadirs."""
def __init__(self, target_format):
"""Create a metadir to metadir converter.
:param target_format: The final metadir format that is desired.
"""
self.target_format = target_format
def convert(self, to_convert, pb):
"""See Converter.convert()."""
self.bzrdir = to_convert
self.pb = ui.ui_factory.nested_progress_bar()
self.count = 0
self.total = 1
self.step('checking repository format')
try:
repo = self.bzrdir.open_repository()
except errors.NoRepositoryPresent:
pass
else:
if not isinstance(repo._format, self.target_format.repository_format.__class__):
from bzrlib.repository import CopyConverter
ui.ui_factory.note(gettext('starting repository conversion'))
converter = CopyConverter(self.target_format.repository_format)
converter.convert(repo, pb)
for branch in self.bzrdir.list_branches():
# TODO: conversions of Branch and Tree should be done by
# InterXFormat lookups/some sort of registry.
# Avoid circular imports
old = branch._format.__class__
new = self.target_format.get_branch_format().__class__
while old != new:
if (old == fullhistorybranch.BzrBranchFormat5 and
new in (_mod_branch.BzrBranchFormat6,
_mod_branch.BzrBranchFormat7,
_mod_branch.BzrBranchFormat8)):
branch_converter = _mod_branch.Converter5to6()
elif (old == _mod_branch.BzrBranchFormat6 and
new in (_mod_branch.BzrBranchFormat7,
_mod_branch.BzrBranchFormat8)):
branch_converter = _mod_branch.Converter6to7()
elif (old == _mod_branch.BzrBranchFormat7 and
new is _mod_branch.BzrBranchFormat8):
branch_converter = _mod_branch.Converter7to8()
else:
raise errors.BadConversionTarget("No converter", new,
branch._format)
branch_converter.convert(branch)
branch = self.bzrdir.open_branch()
old = branch._format.__class__
try:
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
except (errors.NoWorkingTree, errors.NotLocalUrl):
pass
else:
# TODO: conversions of Branch and Tree should be done by
# InterXFormat lookups
if (isinstance(tree, workingtree_3.WorkingTree3) and
not isinstance(tree, workingtree_4.DirStateWorkingTree) and
isinstance(self.target_format.workingtree_format,
workingtree_4.DirStateWorkingTreeFormat)):
workingtree_4.Converter3to4().convert(tree)
if (isinstance(tree, workingtree_4.DirStateWorkingTree) and
not isinstance(tree, workingtree_4.WorkingTree5) and
isinstance(self.target_format.workingtree_format,
workingtree_4.WorkingTreeFormat5)):
workingtree_4.Converter4to5().convert(tree)
if (isinstance(tree, workingtree_4.DirStateWorkingTree) and
not isinstance(tree, workingtree_4.WorkingTree6) and
isinstance(self.target_format.workingtree_format,
workingtree_4.WorkingTreeFormat6)):
workingtree_4.Converter4or5to6().convert(tree)
self.pb.finished()
return to_convert
class ConvertMetaToColo(controldir.Converter):
"""Add colocated branch support."""
def __init__(self, target_format):
"""Create a converter.that upgrades a metadir to the colo format.
:param target_format: The final metadir format that is desired.
"""
self.target_format = target_format
def convert(self, to_convert, pb):
"""See Converter.convert()."""
to_convert.transport.put_bytes('branch-format',
self.target_format.as_string())
return BzrDir.open_from_transport(to_convert.root_transport)
class ConvertMetaToColo(controldir.Converter):
"""Convert a 'development-colo' bzrdir to a '2a' bzrdir."""
def __init__(self, target_format):
"""Create a converter that converts a 'development-colo' metadir
to a '2a' metadir.
:param target_format: The final metadir format that is desired.
"""
self.target_format = target_format
def convert(self, to_convert, pb):
"""See Converter.convert()."""
to_convert.transport.put_bytes('branch-format',
self.target_format.as_string())
return BzrDir.open_from_transport(to_convert.root_transport)
controldir.ControlDirFormat.register_server_prober(RemoteBzrProber)
class RepositoryAcquisitionPolicy(object):
"""Abstract base class for repository acquisition policies.
A repository acquisition policy decides how a BzrDir acquires a repository
for a branch that is being created. The most basic policy decision is
whether to create a new repository or use an existing one.
"""
def __init__(self, stack_on, stack_on_pwd, require_stacking):
"""Constructor.
:param stack_on: A location to stack on
:param stack_on_pwd: If stack_on is relative, the location it is
relative to.
:param require_stacking: If True, it is a failure to not stack.
"""
self._stack_on = stack_on
self._stack_on_pwd = stack_on_pwd
self._require_stacking = require_stacking
def configure_branch(self, branch):
"""Apply any configuration data from this policy to the branch.
Default implementation sets repository stacking.
"""
if self._stack_on is None:
return
if self._stack_on_pwd is None:
stack_on = self._stack_on
else:
try:
stack_on = urlutils.rebase_url(self._stack_on,
self._stack_on_pwd,
branch.user_url)
except errors.InvalidRebaseURLs:
stack_on = self._get_full_stack_on()
try:
branch.set_stacked_on_url(stack_on)
except (errors.UnstackableBranchFormat,
errors.UnstackableRepositoryFormat):
if self._require_stacking:
raise
def requires_stacking(self):
"""Return True if this policy requires stacking."""
return self._stack_on is not None and self._require_stacking
def _get_full_stack_on(self):
"""Get a fully-qualified URL for the stack_on location."""
if self._stack_on is None:
return None
if self._stack_on_pwd is None:
return self._stack_on
else:
return urlutils.join(self._stack_on_pwd, self._stack_on)
def _add_fallback(self, repository, possible_transports=None):
"""Add a fallback to the supplied repository, if stacking is set."""
stack_on = self._get_full_stack_on()
if stack_on is None:
return
try:
stacked_dir = BzrDir.open(stack_on,
possible_transports=possible_transports)
except errors.JailBreak:
# We keep the stacking details, but we are in the server code so
# actually stacking is not needed.
return
try:
stacked_repo = stacked_dir.open_branch().repository
except errors.NotBranchError:
stacked_repo = stacked_dir.open_repository()
try:
repository.add_fallback_repository(stacked_repo)
except errors.UnstackableRepositoryFormat:
if self._require_stacking:
raise
else:
self._require_stacking = True
def acquire_repository(self, make_working_trees=None, shared=False,
possible_transports=None):
"""Acquire a repository for this bzrdir.
Implementations may create a new repository or use a pre-exising
repository.
:param make_working_trees: If creating a repository, set
make_working_trees to this value (if non-None)
:param shared: If creating a repository, make it shared if True
:return: A repository, is_new_flag (True if the repository was
created).
"""
raise NotImplementedError(RepositoryAcquisitionPolicy.acquire_repository)
class CreateRepository(RepositoryAcquisitionPolicy):
"""A policy of creating a new repository"""
def __init__(self, bzrdir, stack_on=None, stack_on_pwd=None,
require_stacking=False):
"""Constructor.
:param bzrdir: The bzrdir to create the repository on.
:param stack_on: A location to stack on
:param stack_on_pwd: If stack_on is relative, the location it is
relative to.
"""
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
require_stacking)
self._bzrdir = bzrdir
def acquire_repository(self, make_working_trees=None, shared=False,
possible_transports=None):
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
Creates the desired repository in the bzrdir we already have.
"""
if possible_transports is None:
possible_transports = []
else:
possible_transports = list(possible_transports)
possible_transports.append(self._bzrdir.root_transport)
stack_on = self._get_full_stack_on()
if stack_on:
format = self._bzrdir._format
format.require_stacking(stack_on=stack_on,
possible_transports=possible_transports)
if not self._require_stacking:
# We have picked up automatic stacking somewhere.
note(gettext('Using default stacking branch {0} at {1}').format(
self._stack_on, self._stack_on_pwd))
repository = self._bzrdir.create_repository(shared=shared)
self._add_fallback(repository,
possible_transports=possible_transports)
if make_working_trees is not None:
repository.set_make_working_trees(make_working_trees)
return repository, True
class UseExistingRepository(RepositoryAcquisitionPolicy):
"""A policy of reusing an existing repository"""
def __init__(self, repository, stack_on=None, stack_on_pwd=None,
require_stacking=False):
"""Constructor.
:param repository: The repository to use.
:param stack_on: A location to stack on
:param stack_on_pwd: If stack_on is relative, the location it is
relative to.
"""
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
require_stacking)
self._repository = repository
def acquire_repository(self, make_working_trees=None, shared=False,
possible_transports=None):
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
Returns an existing repository to use.
"""
if possible_transports is None:
possible_transports = []
else:
possible_transports = list(possible_transports)
possible_transports.append(self._repository.bzrdir.transport)
self._add_fallback(self._repository,
possible_transports=possible_transports)
return self._repository, False
def register_metadir(registry, key,
repository_format, help, native=True, deprecated=False,
branch_format=None,
tree_format=None,
hidden=False,
experimental=False,
alias=False, bzrdir_format=None):
"""Register a metadir subformat.
These all use a meta bzrdir, but can be parameterized by the
Repository/Branch/WorkingTreeformats.
:param repository_format: The fully-qualified repository format class
name as a string.
:param branch_format: Fully-qualified branch format class name as
a string.
:param tree_format: Fully-qualified tree format class name as
a string.
"""
if bzrdir_format is None:
bzrdir_format = BzrDirMetaFormat1
# This should be expanded to support setting WorkingTree and Branch
# formats, once the API supports that.
def _load(full_name):
mod_name, factory_name = full_name.rsplit('.', 1)
try:
factory = pyutils.get_named_object(mod_name, factory_name)
except ImportError, e:
raise ImportError('failed to load %s: %s' % (full_name, e))
except AttributeError:
raise AttributeError('no factory %s in module %r'
% (full_name, sys.modules[mod_name]))
return factory()
def helper():
bd = bzrdir_format()
if branch_format is not None:
bd.set_branch_format(_load(branch_format))
if tree_format is not None:
bd.workingtree_format = _load(tree_format)
if repository_format is not None:
bd.repository_format = _load(repository_format)
return bd
registry.register(key, helper, help, native, deprecated, hidden,
experimental, alias)
register_metadir(controldir.format_registry, 'knit',
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
branch_format='bzrlib.branchfmt.fullhistory.BzrBranchFormat5',
tree_format='bzrlib.workingtree_3.WorkingTreeFormat3',
hidden=True,
deprecated=True)
register_metadir(controldir.format_registry, 'dirstate',
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
help='Format using dirstate for working trees. '
'Compatible with bzr 0.8 and '
'above when accessed over the network. Introduced in bzr 0.15.',
branch_format='bzrlib.branchfmt.fullhistory.BzrBranchFormat5',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True)
register_metadir(controldir.format_registry, 'dirstate-tags',
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
help='Variant of dirstate with support for tags. '
'Introduced in bzr 0.15.',
branch_format='bzrlib.branch.BzrBranchFormat6',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True)
register_metadir(controldir.format_registry, 'rich-root',
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit4',
help='Variant of dirstate with better handling of tree roots. '
'Introduced in bzr 1.0',
branch_format='bzrlib.branch.BzrBranchFormat6',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True)
register_metadir(controldir.format_registry, 'dirstate-with-subtree',
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
help='Variant of dirstate with support for nested trees. '
'Introduced in 0.15.',
branch_format='bzrlib.branch.BzrBranchFormat6',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
experimental=True,
hidden=True,
)
register_metadir(controldir.format_registry, 'pack-0.92',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack1',
help='Pack-based format used in 1.x series. Introduced in 0.92. '
'Interoperates with bzr repositories before 0.92 but cannot be '
'read by bzr < 0.92. '
,
branch_format='bzrlib.branch.BzrBranchFormat6',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
deprecated=True,
)
register_metadir(controldir.format_registry, 'pack-0.92-subtree',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack3',
help='Pack-based format used in 1.x series, with subtree support. '
'Introduced in 0.92. Interoperates with '
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
,
branch_format='bzrlib.branch.BzrBranchFormat6',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True,
experimental=True,
)
register_metadir(controldir.format_registry, 'rich-root-pack',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack4',
help='A variant of pack-0.92 that supports rich-root data '
'(needed for bzr-svn and bzr-git). Introduced in 1.0.',
branch_format='bzrlib.branch.BzrBranchFormat6',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True,
)
register_metadir(controldir.format_registry, '1.6',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack5',
help='A format that allows a branch to indicate that there is another '
'(stacked) repository that should be used to access data that is '
'not present locally.',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True,
)
register_metadir(controldir.format_registry, '1.6.1-rich-root',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack5RichRoot',
help='A variant of 1.6 that supports rich-root data '
'(needed for bzr-svn and bzr-git).',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True,
)
register_metadir(controldir.format_registry, '1.9',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack6',
help='A repository format using B+tree indexes. These indexes '
'are smaller in size, have smarter caching and provide faster '
'performance for most operations.',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True,
)
register_metadir(controldir.format_registry, '1.9-rich-root',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack6RichRoot',
help='A variant of 1.9 that supports rich-root data '
'(needed for bzr-svn and bzr-git).',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat4',
hidden=True,
deprecated=True,
)
register_metadir(controldir.format_registry, '1.14',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack6',
help='A working-tree format that supports content filtering.',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat5',
hidden=True,
deprecated=True,
)
register_metadir(controldir.format_registry, '1.14-rich-root',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatKnitPack6RichRoot',
help='A variant of 1.14 that supports rich-root data '
'(needed for bzr-svn and bzr-git).',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat5',
hidden=True,
deprecated=True,
)
# The following un-numbered 'development' formats should always just be aliases.
register_metadir(controldir.format_registry, 'development-subtree',
'bzrlib.repofmt.groupcompress_repo.RepositoryFormat2aSubtree',
help='Current development format, subtree variant. Can convert data to and '
'from pack-0.92-subtree (and anything compatible with '
'pack-0.92-subtree) format repositories. Repositories and branches in '
'this format can only be read by bzr.dev. Please read '
'http://doc.bazaar.canonical.com/latest/developers/development-repo.html '
'before use.',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat6',
experimental=True,
hidden=True,
alias=False, # Restore to being an alias when an actual development subtree format is added
# This current non-alias status is simply because we did not introduce a
# chk based subtree format.
)
register_metadir(controldir.format_registry, 'development5-subtree',
'bzrlib.repofmt.knitpack_repo.RepositoryFormatPackDevelopment2Subtree',
help='Development format, subtree variant. Can convert data to and '
'from pack-0.92-subtree (and anything compatible with '
'pack-0.92-subtree) format repositories. Repositories and branches in '
'this format can only be read by bzr.dev. Please read '
'http://doc.bazaar.canonical.com/latest/developers/development-repo.html '
'before use.',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat6',
experimental=True,
hidden=True,
alias=False,
)
register_metadir(controldir.format_registry, 'development-colo',
'bzrlib.repofmt.groupcompress_repo.RepositoryFormat2a',
help='The 2a format with experimental support for colocated branches.\n',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat6',
experimental=True,
bzrdir_format=BzrDirMetaFormat1Colo,
)
# And the development formats above will have aliased one of the following:
# Finally, the current format.
register_metadir(controldir.format_registry, '2a',
'bzrlib.repofmt.groupcompress_repo.RepositoryFormat2a',
help='Format for the bzr 2.0 series.\n'
'Uses group-compress storage.\n'
'Provides rich roots which are a one-way transition.\n',
# 'storage in packs, 255-way hashed CHK inventory, bencode revision, group compress, '
# 'rich roots. Supported by bzr 1.16 and later.',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat6',
experimental=False,
)
# The following format should be an alias for the rich root equivalent
# of the default format
register_metadir(controldir.format_registry, 'default-rich-root',
'bzrlib.repofmt.groupcompress_repo.RepositoryFormat2a',
branch_format='bzrlib.branch.BzrBranchFormat7',
tree_format='bzrlib.workingtree_4.WorkingTreeFormat6',
alias=True,
hidden=True,
help='Same as 2a.')
# The current format that is made on 'bzr init'.
format_name = config.GlobalStack().get('default_format')
controldir.format_registry.set_default(format_name)
# XXX 2010-08-20 JRV: There is still a lot of code relying on
# bzrlib.bzrdir.format_registry existing. When BzrDir.create/BzrDir.open/etc
# get changed to ControlDir.create/ControlDir.open/etc this should be removed.
format_registry = controldir.format_registry
|