Ticket #1435: fix-1435.darcs.patch

2 patches for repository davidsarah@dev.allmydata.org:/home/darcs/tahoe/trunk:

Fri Jul 22 00:36:58 BST 2011  david-sarah@jacaranda.org
  * Update the dependency on Twisted to >= 10.1. This allows us to simplify some documentation: it's no longer necessary to install pywin32 on Windows, or apply a patch to Twisted in order to use the FTP frontend. fixes #1274, #1438. refs #1429

Fri Jul 22 00:49:41 BST 2011  david-sarah@jacaranda.org
  * Update the dependency on zope.interface to fix an incompatiblity between Nevow and zope.interface 3.6.4. fixes #1435

New patches:

[Update the dependency on Twisted to >= 10.1. This allows us to simplify some documentation: it's no longer necessary to install pywin32 on Windows, or apply a patch to Twisted in order to use the FTP frontend. fixes #1274, #1438. refs #1429
david-sarah@jacaranda.org**20110721233658
 Ignore-this: 81b41745477163c9b39c0b59db91cc62
] {
hunk ./NEWS.rst 15
   will throw an exception if they gather stats from a new storage
   server and it sends a "None" for a percentile. (`#1392`_)
 
+Compatibility and Dependencies
+''''''''''''''''''''''''''''''
+
+- The Twisted dependency has been raised to version 10.1. This ensures
+  that we no longer require pywin32 on Windows, and that it is never
+  necessary to patch Twisted in order to use the FTP frontend.
+  (`#1274`_, `#1438`_)
+
+.. _`#1274`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1274
 .. _`#1392`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1392
 .. _`#1409`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1409
hunk ./NEWS.rst 26
+.. _`#1438`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1438
+
 
 Release 1.8.2 (2011-01-30)
 --------------------------
hunk ./docs/frontends/FTP-and-SFTP.rst 181
 library that is frequently installed as /usr/lib/libcryptopp.a, to avoid
 problems with non-alphanumerics in filenames).
 
-The FTP server requires code in Twisted that enables asynchronous closing of
-file-upload operations. This code is present in Twisted-10.1 (released
-27-June-2010), but not in Twisted-10.0 (released 01-March-2010). To use
-Tahoe-LAFS's FTP server with Twisted-10.0 or earlier, you will need to apply
-the patch attached to http://twistedmatrix.com/trac/ticket/3462 . The
-Tahoe-LAFS node will refuse to start the FTP server unless it detects the
-necessary support code in Twisted. This patch is not needed for SFTP.
-
 Immutable and Mutable Files
 ===========================
 
hunk ./docs/quickstart.rst 41
 directory has no spaces in it (e.g. on Windows, do not install Python 
 in the "Program Files" directory).
 
-If you are on Windows, you now must manually install the pywin32 
-package from `the pywin32 site 
-<http://sourceforge.net/projects/pywin32/files/>`_ before getting 
-Tahoe-LAFS. Make sure to get the correct file for the version of Python 
-you are using -- e.g. ending in "py2.6.exe" for Python v2.6. If using 
-64-bit Windows, the file should have "win-amd64" in its name.
-
 Get Tahoe-LAFS
 --------------
 
hunk ./setup.py 143
 # the requirement before Nevow's setup.py tries to "import twisted".
 # This only matters when Twisted is not already installed.
 # See http://divmod.org/trac/ticket/2629
-# Retire this hack if/when we require Nevow >= 0.9.33.
-setup_requires.append('Twisted >= 2.4.0')
+# Retire this hack when
+# https://bugs.launchpad.net/nevow/+bug/812537 has been fixed.
+setup_requires += [req for req in install_requires if req.startswith('Twisted')]
 
 # setuptools_darcs is required to produce complete distributions (such
 # as with "sdist" or "bdist_egg"), unless there is a
hunk ./src/allmydata/_auto_deps.py 19
 
     "zope.interface",
 
-    "Twisted >= 2.4.0",
+    # On Windows we need at least Twisted 9.0 to avoid an indirect dependency on pywin32.
+    # We also need Twisted 10.1 for the FTP frontend in order for Twisted's FTP server to
+    # support asynchronous close.
+    "Twisted >= 10.1.0",
 
     # foolscap < 0.5.1 had a performance bug which spent
     # O(N**2) CPU for transferring large mutable files
}
[Update the dependency on zope.interface to fix an incompatiblity between Nevow and zope.interface 3.6.4. fixes #1435
david-sarah@jacaranda.org**20110721234941
 Ignore-this: 2ff3fcfc030fca1a4d4c7f1fed0f2aa9
] {
hunk ./NEWS.rst 18
 Compatibility and Dependencies
 ''''''''''''''''''''''''''''''
 
+- An incompatibility of zope.interface version 3.6.4 with Nevow has
+  been resolved. Tahoe-LAFS now requires one of the exact versions
+  v3.3.1, v3.5.3, or v3.6.1 of zope.interface. (`#1435`_)
 - The Twisted dependency has been raised to version 10.1. This ensures
   that we no longer require pywin32 on Windows, and that it is never
   necessary to patch Twisted in order to use the FTP frontend.
hunk ./NEWS.rst 29
 .. _`#1274`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1274
 .. _`#1392`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1392
 .. _`#1409`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1409
+.. _`#1435`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1435
 .. _`#1438`: http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1438
 
 
hunk ./setup.py 138
 # http://pypi.python.org/pypi/darcsver
 setup_requires.append('darcsver >= 1.7.2')
 
-# Nevow requires Twisted to setup, but prior to Nevow v0.9.33, didn't
-# declare that requirement in a way that enables setuptools to satisfy
-# the requirement before Nevow's setup.py tries to "import twisted".
-# This only matters when Twisted is not already installed.
-# See http://divmod.org/trac/ticket/2629
-# Retire this hack when
+# Nevow imports itself when building, which causes Twisted and zope.interface
+# to be imported. We need to make sure that the versions of Twisted and
+# zope.interface used at build time satisfy Nevow's requirements. If not
+# then there are two problems:
+#  - prior to Nevow v0.9.33, Nevow didn't declare its dependency on Twisted
+#    in a way that enabled setuptools to satisfy that requirement at
+#    build time.
+#  - some versions of zope.interface, e.g. v3.6.4, are incompatible with
+#    Nevow, and we need to avoid those both at build and run-time.
+#
+# This only matters when compatible versions of Twisted and zope.interface
+# are not already installed. Retire this hack when
 # https://bugs.launchpad.net/nevow/+bug/812537 has been fixed.
hunk ./setup.py 151
-setup_requires += [req for req in install_requires if req.startswith('Twisted')]
+setup_requires += [req for req in install_requires if req.startswith('Twisted') or req.startswith('zope.interface')]
 
 # setuptools_darcs is required to produce complete distributions (such
 # as with "sdist" or "bdist_egg"), unless there is a
hunk ./src/allmydata/_auto_deps.py 17
     # Feisty has simplejson 1.4
     "simplejson >= 1.4",
 
-    "zope.interface",
+    # zope.interface 3.6.4 is incompatible with Nevow.
+    # These are the versions packaged in major versions of Debian or Ubuntu, or in pkgsrc.
+    "zope.interface == 3.3.1, == 3.5.3, == 3.6.1",
 
     # On Windows we need at least Twisted 9.0 to avoid an indirect dependency on pywin32.
     # We also need Twisted 10.1 for the FTP frontend in order for Twisted's FTP server to
}

Context:

[docs/running.rst: use 'tahoe run ~/.tahoe' instead of 'tahoe run' (the default is the current directory, unlike 'tahoe start').
david-sarah@jacaranda.org**20110718005949
 Ignore-this: 81837fbce073e93d88a3e7ae3122458c
] 
[docs/running.rst: say to put the introducer.furl in tahoe.cfg.
david-sarah@jacaranda.org**20110717194315
 Ignore-this: 954cc4c08e413e8c62685d58ff3e11f3
] 
[setup: remove the dependency on foolscap's "secure_connections" extra, add a dependency on pyOpenSSL
zooko@zooko.com**20110717114226
 Ignore-this: df222120d41447ce4102616921626c82
 fixes #1383
] 
[docs: add missing link in NEWS.rst
zooko@zooko.com**20110712153307
 Ignore-this: be7b7eb81c03700b739daa1027d72b35
] 
[contrib: remove the contributed fuse modules and the entire contrib/ directory, which is now empty
zooko@zooko.com**20110712153229
 Ignore-this: 723c4f9e2211027c79d711715d972c5
 Also remove a couple of vestigial references to figleaf, which is long gone.
 fixes #1409 (remove contrib/fuse)
] 
[README.txt: say that quickstart.rst is in the docs directory.
david-sarah@jacaranda.org**20110717192400
 Ignore-this: bc6d35a85c496b77dbef7570677ea42a
] 
[test_sftp.py cleanup: remove a redundant definition of failUnlessReallyEqual.
david-sarah@jacaranda.org**20110716181813
 Ignore-this: 50113380b368c573f07ac6fe2eb1e97f
] 
[add Protovis.js-based download-status timeline visualization
Brian Warner <warner@lothar.com>**20110629222606
 Ignore-this: 477ccef5c51b30e246f5b6e04ab4a127
 
 provide status overlap info on the webapi t=json output, add decode/decrypt
 rate tooltips, add zoomin/zoomout buttons
] 
[add more download-status data, fix tests
Brian Warner <warner@lothar.com>**20110629222555
 Ignore-this: e9e0b7e0163f1e95858aa646b9b17b8c
] 
[prepare for viz: improve DownloadStatus events
Brian Warner <warner@lothar.com>**20110629222542
 Ignore-this: 16d0bde6b734bb501aa6f1174b2b57be
 
 consolidate IDownloadStatusHandlingConsumer stuff into DownloadNode
] 
[docs: fix error in crypto specification that was noticed by Taylor R Campbell <campbell+tahoe@mumble.net>
zooko@zooko.com**20110629185711
 Ignore-this: b921ed60c1c8ba3c390737fbcbe47a67
] 
[setup.py: don't make bin/tahoe.pyscript executable. fixes #1347
david-sarah@jacaranda.org**20110130235809
 Ignore-this: 3454c8b5d9c2c77ace03de3ef2d9398a
] 
[Makefile: remove targets relating to 'setup.py check_auto_deps' which no longer exists. fixes #1345
david-sarah@jacaranda.org**20110626054124
 Ignore-this: abb864427a1b91bd10d5132b4589fd90
] 
[Makefile: add 'make check' as an alias for 'make test'. Also remove an unnecessary dependency of 'test' on 'build' and 'src/allmydata/_version.py'. fixes #1344
david-sarah@jacaranda.org**20110623205528
 Ignore-this: c63e23146c39195de52fb17c7c49b2da
] 
[Rename test_package_initialization.py to (much shorter) test_import.py .
Brian Warner <warner@lothar.com>**20110611190234
 Ignore-this: 3eb3dbac73600eeff5cfa6b65d65822
 
 The former name was making my 'ls' listings hard to read, by forcing them
 down to just two columns.
] 
[tests: fix tests to accomodate [20110611153758-92b7f-0ba5e4726fb6318dac28fb762a6512a003f4c430]
zooko@zooko.com**20110611163741
 Ignore-this: 64073a5f39e7937e8e5e1314c1a302d1
 Apparently none of the two authors (stercor, terrell), three reviewers (warner, davidsarah, terrell), or one committer (me) actually ran the tests. This is presumably due to #20.
 fixes #1412
] 
[wui: right-align the size column in the WUI
zooko@zooko.com**20110611153758
 Ignore-this: 492bdaf4373c96f59f90581c7daf7cd7
 Thanks to Ted "stercor" Rolle Jr. and Terrell Russell.
 fixes #1412
] 
[docs: three minor fixes
zooko@zooko.com**20110610121656
 Ignore-this: fec96579eb95aceb2ad5fc01a814c8a2
 CREDITS for arc for stats tweak
 fix link to .zip file in quickstart.rst (thanks to ChosenOne for noticing)
 English usage tweak
] 
[docs/running.rst: fix stray HTML (not .rst) link noticed by ChosenOne.
david-sarah@jacaranda.org**20110609223719
 Ignore-this: fc50ac9c94792dcac6f1067df8ac0d4a
] 
[server.py:  get_latencies now reports percentiles _only_ if there are sufficient observations for the interpretation of the percentile to be unambiguous.
wilcoxjg@gmail.com**20110527120135
 Ignore-this: 2e7029764bffc60e26f471d7c2b6611e
 interfaces.py:  modified the return type of RIStatsProvider.get_stats to allow for None as a return value
 NEWS.rst, stats.py: documentation of change to get_latencies
 stats.rst: now documents percentile modification in get_latencies
 test_storage.py:  test_latencies now expects None in output categories that contain too few samples for the associated percentile to be unambiguously reported.
 fixes #1392
] 
[docs: revert link in relnotes.txt from NEWS.rst to NEWS, since the former did not exist at revision 5000.
david-sarah@jacaranda.org**20110517011214
 Ignore-this: 6a5be6e70241e3ec0575641f64343df7
] 
[docs: convert NEWS to NEWS.rst and change all references to it.
david-sarah@jacaranda.org**20110517010255
 Ignore-this: a820b93ea10577c77e9c8206dbfe770d
] 
[docs: remove out-of-date docs/testgrid/introducer.furl and containing directory. fixes #1404
david-sarah@jacaranda.org**20110512140559
 Ignore-this: 784548fc5367fac5450df1c46890876d
] 
[scripts/common.py: don't assume that the default alias is always 'tahoe' (it is, but the API of get_alias doesn't say so). refs #1342
david-sarah@jacaranda.org**20110130164923
 Ignore-this: a271e77ce81d84bb4c43645b891d92eb
] 
[setup: don't catch all Exception from check_requirement(), but only PackagingError and ImportError
zooko@zooko.com**20110128142006
 Ignore-this: 57d4bc9298b711e4bc9dc832c75295de
 I noticed this because I had accidentally inserted a bug which caused AssertionError to be raised from check_requirement().
] 
[M-x whitespace-cleanup
zooko@zooko.com**20110510193653
 Ignore-this: dea02f831298c0f65ad096960e7df5c7
] 
[docs: fix typo in running.rst, thanks to arch_o_median
zooko@zooko.com**20110510193633
 Ignore-this: ca06de166a46abbc61140513918e79e8
] 
[relnotes.txt: don't claim to work on Cygwin (which has been untested for some time). refs #1342
david-sarah@jacaranda.org**20110204204902
 Ignore-this: 85ef118a48453d93fa4cddc32d65b25b
] 
[relnotes.txt: forseeable -> foreseeable. refs #1342
david-sarah@jacaranda.org**20110204204116
 Ignore-this: 746debc4d82f4031ebf75ab4031b3a9
] 
[replace remaining .html docs with .rst docs
zooko@zooko.com**20110510191650
 Ignore-this: d557d960a986d4ac8216d1677d236399
 Remove install.html (long since deprecated).
 Also replace some obsolete references to install.html with references to quickstart.rst.
 Fix some broken internal references within docs/historical/historical_known_issues.txt.
 Thanks to Ravi Pinjala and Patrick McDonald.
 refs #1227
] 
[docs: FTP-and-SFTP.rst: fix a minor error and update the information about which version of Twisted fixes #1297
zooko@zooko.com**20110428055232
 Ignore-this: b63cfb4ebdbe32fb3b5f885255db4d39
] 
[munin tahoe_files plugin: fix incorrect file count
francois@ctrlaltdel.ch**20110428055312
 Ignore-this: 334ba49a0bbd93b4a7b06a25697aba34
 fixes #1391
] 
[corrected "k must never be smaller than N" to "k must never be greater than N"
secorp@allmydata.org**20110425010308
 Ignore-this: 233129505d6c70860087f22541805eac
] 
[Fix a test failure in test_package_initialization on Python 2.4.x due to exceptions being stringified differently than in later versions of Python. refs #1389
david-sarah@jacaranda.org**20110411190738
 Ignore-this: 7847d26bc117c328c679f08a7baee519
] 
[tests: add test for including the ImportError message and traceback entry in the summary of errors from importing dependencies. refs #1389
david-sarah@jacaranda.org**20110410155844
 Ignore-this: fbecdbeb0d06a0f875fe8d4030aabafa
] 
[allmydata/__init__.py: preserve the message and last traceback entry (file, line number, function, and source line) of ImportErrors in the package versions string. fixes #1389
david-sarah@jacaranda.org**20110410155705
 Ignore-this: 2f87b8b327906cf8bfca9440a0904900
] 
[remove unused variable detected by pyflakes
zooko@zooko.com**20110407172231
 Ignore-this: 7344652d5e0720af822070d91f03daf9
] 
[allmydata/__init__.py: Nicer reporting of unparseable version numbers in dependencies. fixes #1388
david-sarah@jacaranda.org**20110401202750
 Ignore-this: 9c6bd599259d2405e1caadbb3e0d8c7f
] 
[update FTP-and-SFTP.rst: the necessary patch is included in Twisted-10.1
Brian Warner <warner@lothar.com>**20110325232511
 Ignore-this: d5307faa6900f143193bfbe14e0f01a
] 
[control.py: remove all uses of s.get_serverid()
warner@lothar.com**20110227011203
 Ignore-this: f80a787953bd7fa3d40e828bde00e855
] 
[web: remove some uses of s.get_serverid(), not all
warner@lothar.com**20110227011159
 Ignore-this: a9347d9cf6436537a47edc6efde9f8be
] 
[immutable/downloader/fetcher.py: remove all get_serverid() calls
warner@lothar.com**20110227011156
 Ignore-this: fb5ef018ade1749348b546ec24f7f09a
] 
[immutable/downloader/fetcher.py: fix diversity bug in server-response handling
warner@lothar.com**20110227011153
 Ignore-this: bcd62232c9159371ae8a16ff63d22c1b
 
 When blocks terminate (either COMPLETE or CORRUPT/DEAD/BADSEGNUM), the
 _shares_from_server dict was being popped incorrectly (using shnum as the
 index instead of serverid). I'm still thinking through the consequences of
 this bug. It was probably benign and really hard to detect. I think it would
 cause us to incorrectly believe that we're pulling too many shares from a
 server, and thus prefer a different server rather than asking for a second
 share from the first server. The diversity code is intended to spread out the
 number of shares simultaneously being requested from each server, but with
 this bug, it might be spreading out the total number of shares requested at
 all, not just simultaneously. (note that SegmentFetcher is scoped to a single
 segment, so the effect doesn't last very long).
] 
[immutable/downloader/share.py: reduce get_serverid(), one left, update ext deps
warner@lothar.com**20110227011150
 Ignore-this: d8d56dd8e7b280792b40105e13664554
 
 test_download.py: create+check MyShare instances better, make sure they share
 Server objects, now that finder.py cares
] 
[immutable/downloader/finder.py: reduce use of get_serverid(), one left
warner@lothar.com**20110227011146
 Ignore-this: 5785be173b491ae8a78faf5142892020
] 
[immutable/offloaded.py: reduce use of get_serverid() a bit more
warner@lothar.com**20110227011142
 Ignore-this: b48acc1b2ae1b311da7f3ba4ffba38f
] 
[immutable/upload.py: reduce use of get_serverid()
warner@lothar.com**20110227011138
 Ignore-this: ffdd7ff32bca890782119a6e9f1495f6
] 
[immutable/checker.py: remove some uses of s.get_serverid(), not all
warner@lothar.com**20110227011134
 Ignore-this: e480a37efa9e94e8016d826c492f626e
] 
[add remaining get_* methods to storage_client.Server, NoNetworkServer, and
warner@lothar.com**20110227011132
 Ignore-this: 6078279ddf42b179996a4b53bee8c421
 MockIServer stubs
] 
[upload.py: rearrange _make_trackers a bit, no behavior changes
warner@lothar.com**20110227011128
 Ignore-this: 296d4819e2af452b107177aef6ebb40f
] 
[happinessutil.py: finally rename merge_peers to merge_servers
warner@lothar.com**20110227011124
 Ignore-this: c8cd381fea1dd888899cb71e4f86de6e
] 
[test_upload.py: factor out FakeServerTracker
warner@lothar.com**20110227011120
 Ignore-this: 6c182cba90e908221099472cc159325b
] 
[test_upload.py: server-vs-tracker cleanup
warner@lothar.com**20110227011115
 Ignore-this: 2915133be1a3ba456e8603885437e03
] 
[happinessutil.py: server-vs-tracker cleanup
warner@lothar.com**20110227011111
 Ignore-this: b856c84033562d7d718cae7cb01085a9
] 
[upload.py: more tracker-vs-server cleanup
warner@lothar.com**20110227011107
 Ignore-this: bb75ed2afef55e47c085b35def2de315
] 
[upload.py: fix var names to avoid confusion between 'trackers' and 'servers'
warner@lothar.com**20110227011103
 Ignore-this: 5d5e3415b7d2732d92f42413c25d205d
] 
[refactor: s/peer/server/ in immutable/upload, happinessutil.py, test_upload
warner@lothar.com**20110227011100
 Ignore-this: 7ea858755cbe5896ac212a925840fe68
 
 No behavioral changes, just updating variable/method names and log messages.
 The effects outside these three files should be minimal: some exception
 messages changed (to say "server" instead of "peer"), and some internal class
 names were changed. A few things still use "peer" to minimize external
 changes, like UploadResults.timings["peer_selection"] and
 happinessutil.merge_peers, which can be changed later.
] 
[storage_client.py: clean up test_add_server/test_add_descriptor, remove .test_servers
warner@lothar.com**20110227011056
 Ignore-this: efad933e78179d3d5fdcd6d1ef2b19cc
] 
[test_client.py, upload.py:: remove KiB/MiB/etc constants, and other dead code
warner@lothar.com**20110227011051
 Ignore-this: dc83c5794c2afc4f81e592f689c0dc2d
] 
[test: increase timeout on a network test because Francois's ARM machine hit that timeout
zooko@zooko.com**20110317165909
 Ignore-this: 380c345cdcbd196268ca5b65664ac85b
 I'm skeptical that the test was proceeding correctly but ran out of time. It seems more likely that it had gotten hung. But if we raise the timeout to an even more extravagant number then we can be even more certain that the test was never going to finish.
] 
[docs/configuration.rst: add a "Frontend Configuration" section
Brian Warner <warner@lothar.com>**20110222014323
 Ignore-this: 657018aa501fe4f0efef9851628444ca
 
 this points to docs/frontends/*.rst, which were previously underlinked
] 
[web/filenode.py: avoid calling req.finish() on closed HTTP connections. Closes #1366
"Brian Warner <warner@lothar.com>"**20110221061544
 Ignore-this: 799d4de19933f2309b3c0c19a63bb888
] 
[Add unit tests for cross_check_pkg_resources_versus_import, and a regression test for ref #1355. This requires a little refactoring to make it testable.
david-sarah@jacaranda.org**20110221015817
 Ignore-this: 51d181698f8c20d3aca58b057e9c475a
] 
[allmydata/__init__.py: .name was used in place of the correct .__name__ when printing an exception. Also, robustify string formatting by using %r instead of %s in some places. fixes #1355.
david-sarah@jacaranda.org**20110221020125
 Ignore-this: b0744ed58f161bf188e037bad077fc48
] 
[Refactor StorageFarmBroker handling of servers
Brian Warner <warner@lothar.com>**20110221015804
 Ignore-this: 842144ed92f5717699b8f580eab32a51
 
 Pass around IServer instance instead of (peerid, rref) tuple. Replace
 "descriptor" with "server". Other replacements:
 
  get_all_servers -> get_connected_servers/get_known_servers
  get_servers_for_index -> get_servers_for_psi (now returns IServers)
 
 This change still needs to be pushed further down: lots of code is now
 getting the IServer and then distributing (peerid, rref) internally.
 Instead, it ought to distribute the IServer internally and delay
 extracting a serverid or rref until the last moment.
 
 no_network.py was updated to retain parallelism.
] 
[TAG allmydata-tahoe-1.8.2
warner@lothar.com**20110131020101] 
Patch bundle hash:
646bfe435d752affa5b9f115c3791df17a0e6204