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NEWS: more edits, almost done

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Brian Warner 2008-09-18 18:00:36 -07:00
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NEWS
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@ -111,13 +111,52 @@ cleaner.
** Packaging ** Packaging
require foolscap[secure_connections] to require pyopenssl The Tahoe dependencies have been extended to require the
use pollreactor "[secure_connections]" feature from Foolscap, which will cause pyOpenSSL to
SUMO tarballs be required and/or installed. If OpenSSL and its development headers are
tahoe-deps.tar.gz already installed on your system, this can occur automatically. Tahoe now
setup.py build_tahoe uses pollreactor (instead of the default selectreactor) to work around a bug
setup.py trial between pyOpenSSL and the most recent release of Twisted (8.1.0). This bug
should allow tests to run when twisted was auto-installed only affects unit tests (hang during shutdown), and should not impact regular
use.
The Tahoe source code tarballs now come in two different forms: regular and
"sumo". The regular tarball contains just Tahoe, nothing else. When building
from the regular tarball, the build process will download any unmet
dependencies from the internet (starting with the index at PyPI) so it can
build and install them. The "sumo" tarball contains copies of all the
libraries that Tahoe requires (foolscap, twisted, zfec, etc), so using the
"sumo" tarball should not require any internet access during the build
process. This can be useful if you want to build Tahoe while on an airplane,
a desert island, or other bandwidth-limited environments.
Similarly, allmydata.org now hosts a "tahoe-deps" tarball which contains the
latest versions of all these dependencies. This tarball, located at
http://allmydata.org/source/tahoe/deps/tahoe-deps.tar.gz, can be unpacked in
the tahoe source tree (or in its parent directory), and the build process
should satisfy its downloading needs from it instead of reaching out to PyPI.
This can be useful if you want to build Tahoe from a darcs checkout while on
that airplane or desert island.
The previous two changes ("sumo" tarballs and the "tahoe-deps" bundle), most
of the files have been removed from misc/dependencies/ . This brings the
regular Tahoe tarball down to 2MB (compressed), and the darcs checkout
(without history) to about 7.6MB. A full darcs checkout will still be fairly
large (because of the historical patches which included the dependent
libraries), but a 'lazy' one should now be small.
The default "make" target is now an alias for "setup.py build_tahoe", which
itself is a wrapper around "setup.py develop --prefix support/lib", with some
extra work before and after. Most of the complicated platform-dependent code
in the Makefile was rewritten in Python and moved into setup.py, simplifying
things considerably.
Likewise, the "make test" target now delegates most of its work to "setup.py
trial", which takes care of getting PYTHONPATH configured to access the tahoe
code (and dependencies) that gets put in support/lib/ by the build_tahoe
step. This should allow unit tests to be run even when trial (which is part
of Twisted) wasn't already installed (in this case, trial gets installed to
support/bin because Twisted is a dependency of Tahoe).
** Grid Management Tools ** Grid Management Tools