<feed xmlns='http://www.w3.org/2005/Atom'>
<title>git/object-file.c, branch v2.42.2</title>
<subtitle>Mirror of https://git.kernel.org/pub/scm/git/git.git/
</subtitle>
<id>https://git.shady.money/git/atom?h=v2.42.2</id>
<link rel='self' href='https://git.shady.money/git/atom?h=v2.42.2'/>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/'/>
<updated>2023-07-25T19:05:24Z</updated>
<entry>
<title>Merge branch 'jk/unused-parameter'</title>
<updated>2023-07-25T19:05:24Z</updated>
<author>
<name>Junio C Hamano</name>
<email>gitster@pobox.com</email>
</author>
<published>2023-07-25T19:05:24Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=c5fcd34e1bfabde14dff226ad92aca9c39d67391'/>
<id>urn:sha1:c5fcd34e1bfabde14dff226ad92aca9c39d67391</id>
<content type='text'>
Mark-up unused parameters in the code so that we can eventually
enable -Wunused-parameter by default.

* jk/unused-parameter:
  t/helper: mark unused callback void data parameters
  tag: mark unused parameters in each_tag_name_fn callbacks
  rev-parse: mark unused parameter in for_each_abbrev callback
  replace: mark unused parameter in each_mergetag_fn callback
  replace: mark unused parameter in ref callback
  merge-tree: mark unused parameter in traverse callback
  fsck: mark unused parameters in various fsck callbacks
  revisions: drop unused "opt" parameter in "tweak" callbacks
  count-objects: mark unused parameter in alternates callback
  am: mark unused keep_cr parameters
  http-push: mark unused parameter in xml callback
  http: mark unused parameters in curl callbacks
  do_for_each_ref_helper(): mark unused repository parameter
  test-ref-store: drop unimplemented reflog-expire command
</content>
</entry>
<entry>
<title>fsck: mark unused parameters in various fsck callbacks</title>
<updated>2023-07-14T00:24:00Z</updated>
<author>
<name>Jeff King</name>
<email>peff@peff.net</email>
</author>
<published>2023-07-03T06:44:18Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=0b4e9013f1f23f0ee0758b2c6abfc446b1376bb0'/>
<id>urn:sha1:0b4e9013f1f23f0ee0758b2c6abfc446b1376bb0</id>
<content type='text'>
There are a few callback functions which are used with the fsck code,
but it's natural that not all callbacks need all parameters. For
reporting, even something as obvious as "the oid of the object which had
a problem" is not always used, as some callers are only checking a
single object in the first place. And for both reporting and walking,
things like void data pointers and the fsck_options aren't always
necessary.

But since each such parameter is used by _some_ callback, we have to
keep them in the interface. Mark the unused ones in specific callbacks
to avoid triggering -Wunused-parameter.

Signed-off-by: Jeff King &lt;peff@peff.net&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>git-compat-util: move alloc macros to git-compat-util.h</title>
<updated>2023-07-05T18:42:31Z</updated>
<author>
<name>Calvin Wan</name>
<email>calvinwan@google.com</email>
</author>
<published>2023-07-05T17:09:24Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=91c080dff511b7a81f91d1cc79589b49e16a2b7a'/>
<id>urn:sha1:91c080dff511b7a81f91d1cc79589b49e16a2b7a</id>
<content type='text'>
alloc_nr, ALLOC_GROW, and ALLOC_GROW_BY are commonly used macros for
dynamic array allocation. Moving these macros to git-compat-util.h with
the other alloc macros focuses alloc.[ch] to allocation for Git objects
and additionally allows us to remove inclusions to alloc.h from files
that solely used the above macros.

Signed-off-by: Calvin Wan &lt;calvinwan@google.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>treewide: remove unnecessary includes for wrapper.h</title>
<updated>2023-07-05T18:41:59Z</updated>
<author>
<name>Calvin Wan</name>
<email>calvinwan@google.com</email>
</author>
<published>2023-07-05T17:09:23Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=da9502ff4dc495471a1a080dc297cd6e4628c10c'/>
<id>urn:sha1:da9502ff4dc495471a1a080dc297cd6e4628c10c</id>
<content type='text'>
Signed-off-by: Calvin Wan &lt;calvinwan@google.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>repository: remove unnecessary include of path.h</title>
<updated>2023-06-21T20:39:53Z</updated>
<author>
<name>Elijah Newren</name>
<email>newren@gmail.com</email>
</author>
<published>2023-05-16T06:33:59Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=c339932bd858e84490c8690d393307a58764d6ed'/>
<id>urn:sha1:c339932bd858e84490c8690d393307a58764d6ed</id>
<content type='text'>
This also made it clear that several .c files that depended upon path.h
were missing a #include for it; add the missing includes while at it.

Signed-off-by: Elijah Newren &lt;newren@gmail.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>Merge branch 'en/header-split-cache-h-part-2'</title>
<updated>2023-05-09T23:45:46Z</updated>
<author>
<name>Junio C Hamano</name>
<email>gitster@pobox.com</email>
</author>
<published>2023-05-09T23:45:45Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=ccd12a3d6cc62f51b746654ae56e26d92f89ba92'/>
<id>urn:sha1:ccd12a3d6cc62f51b746654ae56e26d92f89ba92</id>
<content type='text'>
More header clean-up.

* en/header-split-cache-h-part-2: (22 commits)
  reftable: ensure git-compat-util.h is the first (indirect) include
  diff.h: reduce unnecessary includes
  object-store.h: reduce unnecessary includes
  commit.h: reduce unnecessary includes
  fsmonitor: reduce includes of cache.h
  cache.h: remove unnecessary headers
  treewide: remove cache.h inclusion due to previous changes
  cache,tree: move basic name compare functions from read-cache to tree
  cache,tree: move cmp_cache_name_compare from tree.[ch] to read-cache.c
  hash-ll.h: split out of hash.h to remove dependency on repository.h
  tree-diff.c: move S_DIFFTREE_IFXMIN_NEQ define from cache.h
  dir.h: move DTYPE defines from cache.h
  versioncmp.h: move declarations for versioncmp.c functions from cache.h
  ws.h: move declarations for ws.c functions from cache.h
  match-trees.h: move declarations for match-trees.c functions from cache.h
  pkt-line.h: move declarations for pkt-line.c functions from cache.h
  base85.h: move declarations for base85.c functions from cache.h
  copy.h: move declarations for copy.c functions from cache.h
  server-info.h: move declarations for server-info.c functions from cache.h
  packfile.h: move pack_window and pack_entry from cache.h
  ...
</content>
</entry>
<entry>
<title>Merge branch 'ps/fix-geom-repack-with-alternates'</title>
<updated>2023-04-25T20:56:20Z</updated>
<author>
<name>Junio C Hamano</name>
<email>gitster@pobox.com</email>
</author>
<published>2023-04-25T20:56:20Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=36628c56ed54b5a86aa9a17ed589fc0ee7f5bea5'/>
<id>urn:sha1:36628c56ed54b5a86aa9a17ed589fc0ee7f5bea5</id>
<content type='text'>
Geometric repacking ("git repack --geometric=&lt;n&gt;") in a repository
that borrows from an alternate object database had various corner
case bugs, which have been corrected.

* ps/fix-geom-repack-with-alternates:
  repack: disable writing bitmaps when doing a local repack
  repack: honor `-l` when calculating pack geometry
  t/helper: allow chmtime to print verbosely without modifying mtime
  pack-objects: extend test coverage of `--stdin-packs` with alternates
  pack-objects: fix error when same packfile is included and excluded
  pack-objects: fix error when packing same pack twice
  pack-objects: split out `--stdin-packs` tests into separate file
  repack: fix generating multi-pack-index with only non-local packs
  repack: fix trying to use preferred pack in alternates
  midx: fix segfault with no packs and invalid preferred pack
</content>
</entry>
<entry>
<title>object-store.h: reduce unnecessary includes</title>
<updated>2023-04-24T19:47:33Z</updated>
<author>
<name>Elijah Newren</name>
<email>newren@gmail.com</email>
</author>
<published>2023-04-22T20:17:27Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=e3d2f20e6f14d3cba641a365a733a615278e9e5e'/>
<id>urn:sha1:e3d2f20e6f14d3cba641a365a733a615278e9e5e</id>
<content type='text'>
Signed-off-by: Elijah Newren &lt;newren@gmail.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>treewide: remove cache.h inclusion due to previous changes</title>
<updated>2023-04-24T19:47:33Z</updated>
<author>
<name>Elijah Newren</name>
<email>newren@gmail.com</email>
</author>
<published>2023-04-22T20:17:23Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=5e3f94dfe3c69bc2a711a9dc3b1635e7ff91ab54'/>
<id>urn:sha1:5e3f94dfe3c69bc2a711a9dc3b1635e7ff91ab54</id>
<content type='text'>
Signed-off-by: Elijah Newren &lt;newren@gmail.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>repack: disable writing bitmaps when doing a local repack</title>
<updated>2023-04-14T17:27:52Z</updated>
<author>
<name>Patrick Steinhardt</name>
<email>ps@pks.im</email>
</author>
<published>2023-04-14T06:02:12Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=d85cd1877777aa92c73868b9e86516d4be04b4a0'/>
<id>urn:sha1:d85cd1877777aa92c73868b9e86516d4be04b4a0</id>
<content type='text'>
In order to write a bitmap, we need to have full coverage of all objects
that are about to be packed. In the traditional non-multi-pack-index
world this meant we need to do a full repack of all objects into a
single packfile. But in the new multi-pack-index world we can get away
with writing bitmaps when we have multiple packfiles as long as the
multi-pack-index covers all objects.

This is not always the case though. When asked to perform a repack of
local objects, only, then we cannot guarantee to have full coverage of
all objects regardless of whether we do a full repack or a repack with a
multi-pack-index. The end result is that writing the bitmap will fail in
both worlds:

    $ git multi-pack-index write --stdin-packs --bitmap &lt;packfiles
    warning: Failed to write bitmap index. Packfile doesn't have full closure (object 1529341d78cf45377407369acb0f4ff2b5cdae42 is missing)
    error: could not write multi-pack bitmap

Now there are two different ways to fix this. The first one would be to
amend git-multi-pack-index(1) to disable writing bitmaps when we notice
that we don't have full object coverage.

    - We don't have enough information in git-multi-pack-index(1) in
      order to tell whether the local repository _should_ have full
      coverage. Because even when connected to an alternate object
      directory, it may be the case that we still have all objects
      around in the main object database.

    - git-multi-pack-index(1) is quite a low-level tool. Automatically
      disabling functionality that it was asked to provide does not feel
      like the right thing to do.

We can easily fix it at a higher level in git-repack(1) though. When
asked to only include local objects via `-l` and when connected to an
alternate object directory then we will override the user's ask and
disable writing bitmaps with a warning. This is similar to what we do in
git-pack-objects(1), where we also disable writing bitmaps in case we
omit an object from the pack.

Signed-off-by: Patrick Steinhardt &lt;ps@pks.im&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
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