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0.33-from-0.32.md

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Notable changes in 0.33 since 0.32

  • Python 3 is now required, in particular 3.7 or newer.

  • The version of Python is no longer determined by the value of PYTHON during ./configure. It is now determined by the version of python-config selected during configuration. The BUP_PYTHON_CONFIG environment variable can be set during configuration to select a particular executable (e.g. BUP_PYTHON_CONFIG=python3.9-config ./configure). See the README for further details.

  • The bup executable is now a binary rather than a Python script. Practically speaking, this means that the Python version is determined by the libpython that the executable is linked against (selected via python-config), and it means that bup will show up as "bup" in process listings rather than a python invocation.

  • The output of bup ls for multiple paths includes each path before its contents, more closely matching the system ls.

  • The bup ftp ls command should now respect the working directory (set by cd), and that directory has been added to the prompt.

  • Some minor changes have been made to bup web's interface.

  • The index-cache is no longer included in the bup midx --dir default.

  • Performance may have improved after the relocation of a number of operations from Python to C, and a number of improvements to the VFS.

  • The #bup IRC channel has moved to https://libera.chat/.

Bugs

  • Bup should now respect the current umask, directory sgid bit, etc. when creating new files (e.g. new packfiles). Previously, it would create them via mkstemp, which would cause them to be readable only by the current user.

  • Bup should now be able to handle repositories containing signed commits.

  • bup tag has been changed to rely on git update-ref instead of writing the (loose) refs directly so that it can handle packed refs correctly.

  • bup save should be more careful about noting an error and skipping paths whose type (link, regular file, ...) has changed since indexing.

  • There should no longer be a narrow window where save could store conflicting symlink targets or conflicting sizes (in the metadata record and the packfile symlink blob) for a path if the filesystem changed at just the wrong time during a save.

  • bup fuse should no longer become unusable after an unfinished read of commits associated with tags. The underlying VFS issue may have affected other commands too.

  • Bup's packfile names should now match git's. Previously bup computed the SHA1 from just the sorted object list (cf. git-index-pack(1)), but git appears to include the entire pack file in the hash.

  • Passing idx files to bup midx along with --dir should now work correctly.

  • The bup index --print --long ... mode fields should now be formatted correctly with Python 3 (it changed the oct() format).

  • Resource usage (e.g. memory) may have improved, given a number of changes intended to make bup release resources more carefully and sooner.

Build and install

  • As mentioned above, PYTHON's role during configuration has been replaced by BUP_PYTHON_CONFIG.

  • ./configure now supports --with-pylint=[yes|no|maybe].

  • Any CC, CPPFLAGS, CFLAGS, or LDFLAGS set during ./configure should now be preserved across future make invocations.

  • The build process should now work on systems where make isn't GNU Make (the Makefile automatically redirects to GNUmakefile).

  • The PANDOC path can contain spaces.

Thanks to (at least)

Abdel Said, Arthur Ward, Bas Stottelaar, Brian Minton, Greg Troxel, Johannes Berg, Mark Hewitt, Muh Muhten, and Rob Browning