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Notable changes in 0.28 as compared to 0.27.1
=============================================
May require attention
---------------------
* The default install PREFIX is now "/usr/local".
* BINDIR, DOCDIR, LIBDIR, and MANDIR settings no longer side-step
DESTDIR. i.e. `make DESTDIR=/x MANDIR=/y` install will install the
manpages to "/x/y" not just "/y".
* The index format has changed, which will trigger a full index
rebuild on the next index run, making that run more expensive than
usual.
* When given `--xdev`, `bup save` should no longer skip directories
that are explicitly listed on the command line when the directory is
both on a separate filesystem, and a subtree of another path listed
on the command line. Previously `bup save --xdev / /usr` could skip
"/usr" if it was on a separate filesystem from "/".
* Tags along a branch are no longer shown in the branch's directory in
the virtual filesystem (VFS). i.e. given `bup tag special
/foo/latest`, "/foo/special" will no longer be visible via `bup ls`,
`bup web`, `bup fuse`, etc., but the tag will still be available as
"/.tag/special".
General
-------
* bup now provides experimental `rm` and `gc` subcommands, which
should allow branches and saves to be deleted, and their storage
space reclaimed (assuming nothing else refers to the relevant data).
For the moment, these commands require an `--unsafe` argument and
should be treated accordingly. Although if an attempt to `join` or
`restore` the data you still care about after a `gc` succeeds,
that's a fairly encouraging sign that the commands worked correctly.
(The `t/compare-trees` command in the source tree can be used to
help test before/after results.)
Note that the current `gc` command is probabilistic, which means it
may not remove *all* of the obsolete data from the repository, but
also means that the command should be fairly efficient, even for
large repositories.
* bup may have less impact on the filesystem cache. It now attempts
to leave the cache roughly the way it found it when running a `save`
or `split`.
* A specific Python can be specified at `./configure` time via PYTHON,
i.e. `PYTHON=/some/python ./configure`, and that Python will be
embedded in all of the relevant scripts as an explicit "#!/..." line
during `make install`.
* `bup web` will now attempt an orderly shutdown when it receives a
SIGTERM.
* `bup web` will listen on a filesystem socket when given an address
like "unix://...".
* bup no longer limits the number of files in a directory to 100000.
The limit is now UINT_MAX.
* `bup fuse` now has a `--verbose` argument, and responds to
`--debug`.
Bugs
----
* bup save should not fail when asked to save a subdirectory of a
directory that was completely up to date in the index. Previously
this could cause a "shalists" assertion failure.
* The way bup writes the data to disk (the packfiles in particular),
should be a bit safer now if there is a coincident power failure or
system crash.
* A problem has been fixed that could cause bup to ignore the current
TZ setting when computing the local time.
* bup should no longer generate broken commits when the timezone
offset is not an integer number of hours
(e.g. TZ=Australia/Adelaide).
* `bup midx --output` should now work when used with `--auto` or
`--force`.
* `bup import-rsnapshot` should exit with a status of 1, not -1.
* bup should be more likely to get the data to permanent storage
safely on OS X, which appears to follow a surprising interpretation
of the `fsync()` specification.
* `bup web` should handle non-ASCII paths better. It will no longer
treat them as (and try to convert them to) Unicode (which they're
not).
* `bup restore` should no longer crash when an attempt to remove an
xattr returns EACCES.
Build system
------------
* The tests can now be run in parallel (and possibly much more
quickly) via `make -j check`.
* The build system now creates and uses cmd/bup-python which refers to
the `./configure` selected python.
Thanks to (at least)
====================
Aidan Hobson Sayers, Ben Kelly, Ben Wiederhake, Brandon Smith, Brian Minton,
David Kettler, Frank Gevaerts, Gabriel Filion, Greg Troxel, James Lott,
Karl-Philipp Richter, Luis Sanchez Sanchez, Marcus Schopen, Mark J
Hewitt, Markus, Mathieu Schroeter, Michael March, Nimen Nachname, Nix,
Patrick Rouleau, Paul Kronenwetter, Rob Browning, Robert Edmonds,
Simon Persson, Tadej Janež, Thomas Klausner, Tilo Schwarz, Tim
Riemenschneider, Wayne Scott, pspdevel, and stevelr
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