<feed xmlns='http://www.w3.org/2005/Atom'>
<title>git/attr.c, branch v2.21.4</title>
<subtitle>Mirror of https://git.kernel.org/pub/scm/git/git.git/
</subtitle>
<id>https://git.shady.money/git/atom?h=v2.21.4</id>
<link rel='self' href='https://git.shady.money/git/atom?h=v2.21.4'/>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/'/>
<updated>2019-02-07T06:05:23Z</updated>
<entry>
<title>Merge branch 'nd/the-index-final'</title>
<updated>2019-02-07T06:05:23Z</updated>
<author>
<name>Junio C Hamano</name>
<email>gitster@pobox.com</email>
</author>
<published>2019-02-07T06:05:22Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=7589e63648bf5224e186990931b1491f36e10a4b'/>
<id>urn:sha1:7589e63648bf5224e186990931b1491f36e10a4b</id>
<content type='text'>
The assumption to work on the single "in-core index" instance has
been reduced from the library-ish part of the codebase.

* nd/the-index-final:
  cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switch
  read-cache.c: remove the_* from index_has_changes()
  merge-recursive.c: remove implicit dependency on the_repository
  merge-recursive.c: remove implicit dependency on the_index
  sha1-name.c: remove implicit dependency on the_index
  read-cache.c: replace update_index_if_able with repo_&amp;
  read-cache.c: kill read_index()
  checkout: avoid the_index when possible
  repository.c: replace hold_locked_index() with repo_hold_locked_index()
  notes-utils.c: remove the_repository references
  grep: use grep_opt-&gt;repo instead of explict repo argument
</content>
</entry>
<entry>
<title>Merge branch 'jk/attr-macro-fix'</title>
<updated>2019-02-05T22:26:16Z</updated>
<author>
<name>Junio C Hamano</name>
<email>gitster@pobox.com</email>
</author>
<published>2019-02-05T22:26:16Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=02bf766cc5d7580ce17dfab36fce976bfd06585b'/>
<id>urn:sha1:02bf766cc5d7580ce17dfab36fce976bfd06585b</id>
<content type='text'>
Asking "git check-attr" about a macro (e.g. "binary") on a specific
path did not work correctly, even though "git check-attr -a" listed
such a macro correctly.  This has been corrected.

* jk/attr-macro-fix:
  attr: do not mark queried macros as unset
</content>
</entry>
<entry>
<title>cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switch</title>
<updated>2019-01-24T19:55:06Z</updated>
<author>
<name>Nguyễn Thái Ngọc Duy</name>
<email>pclouds@gmail.com</email>
</author>
<published>2019-01-24T08:29:12Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=f8adbec9feaa7a1ab9814db1115826e87033712e'/>
<id>urn:sha1:f8adbec9feaa7a1ab9814db1115826e87033712e</id>
<content type='text'>
By default, index compat macros are off from now on, because they
could hide the_index dependency.

Only those in builtin can use it.

Signed-off-by: Nguyễn Thái Ngọc Duy &lt;pclouds@gmail.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>attr: do not mark queried macros as unset</title>
<updated>2019-01-22T21:48:15Z</updated>
<author>
<name>Jeff King</name>
<email>peff@peff.net</email>
</author>
<published>2019-01-18T21:34:58Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=7b95849be42406b2e23bcdc4592d71d8724361ba'/>
<id>urn:sha1:7b95849be42406b2e23bcdc4592d71d8724361ba</id>
<content type='text'>
Since 60a12722ac (attr: remove maybe-real, maybe-macro from git_attr,
2017-01-27), we will always mark an attribute macro (e.g., "binary")
that is specifically queried for as "unspecified", even though listing
_all_ attributes would display it at set. E.g.:

  $ echo "* binary" &gt;.gitattributes

  $ git check-attr -a file
  file: binary: set
  file: diff: unset
  file: merge: unset
  file: text: unset

  $ git check-attr binary file
  file: binary: unspecified

The problem stems from an incorrect conversion of the optimization from
06a604e670 (attr: avoid heavy work when we know the specified attr is
not defined, 2014-12-28). There we tried in collect_some_attrs() to
avoid even looking at the attr_stack when the user has asked for "foo"
and we know that "foo" did not ever appear in any .gitattributes file.

It used a flag "maybe_real" in each attribute struct, where "real" meant
that the attribute appeared in an actual file (we have to make this
distinction because we also create an attribute struct for any names
that are being queried). But as explained in that commit message, the
meaning of "real" was tangled with some special cases around macros.

When 60a12722ac later refactored the macro code, it dropped maybe_real
entirely. This missed the fact that "maybe_real" could be unset for two
reasons: because of a macro, or because it was never found during
parsing. This had two results:

  - the optimization in collect_some_attrs() ceased doing anything
    meaningful, since it no longer kept track of "was it found during
    parsing"

  - worse, it actually kicked in when the caller _did_ ask about a macro
    by name, causing us to mark it as unspecified

It should be possible to salvage this optimization, but let's start with
just removing the remnants. It hasn't been doing anything (except
creating bugs) since 60a12722ac, and nobody seems to have noticed the
performance regression. It's more important to fix the correctness
problem clearly first.

I've added two tests here. The second one actually shows off the bug.
The test of "check-attr -a" is not strictly necessary, but we currently
do not test attribute macros much, and the builtin "binary" not at all.
So this increases our general test coverage, as well as making sure we
didn't mess up this related case.

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>Merge branch 'nd/i18n'</title>
<updated>2019-01-04T21:33:31Z</updated>
<author>
<name>Junio C Hamano</name>
<email>gitster@pobox.com</email>
</author>
<published>2019-01-04T21:33:31Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=3813a89faee3ecb111aa206f68b46618ec853e4e'/>
<id>urn:sha1:3813a89faee3ecb111aa206f68b46618ec853e4e</id>
<content type='text'>
More _("i18n") markings.

* nd/i18n:
  fsck: mark strings for translation
  fsck: reduce word legos to help i18n
  parse-options.c: mark more strings for translation
  parse-options.c: turn some die() to BUG()
  parse-options: replace opterror() with optname()
  repack: mark more strings for translation
  remote.c: mark messages for translation
  remote.c: turn some error() or die() to BUG()
  reflog: mark strings for translation
  read-cache.c: add missing colon separators
  read-cache.c: mark more strings for translation
  read-cache.c: turn die("internal error") to BUG()
  attr.c: mark more string for translation
  archive.c: mark more strings for translation
  alias.c: mark split_cmdline_strerror() strings for translation
  git.c: mark more strings for translation
</content>
</entry>
<entry>
<title>attr.c: mark more string for translation</title>
<updated>2018-11-12T05:47:09Z</updated>
<author>
<name>Nguyễn Thái Ngọc Duy</name>
<email>pclouds@gmail.com</email>
</author>
<published>2018-11-10T05:16:03Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=ad8f8f4aedc736b7ddbf802dd253f8682f4f5a3e'/>
<id>urn:sha1:ad8f8f4aedc736b7ddbf802dd253f8682f4f5a3e</id>
<content type='text'>
Signed-off-by: Nguyễn Thái Ngọc Duy &lt;pclouds@gmail.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>attr.c: remove #ifdef NO_PTHREADS</title>
<updated>2018-11-05T04:42:11Z</updated>
<author>
<name>Nguyễn Thái Ngọc Duy</name>
<email>pclouds@gmail.com</email>
</author>
<published>2018-11-03T08:48:42Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=2e1b141a0132ad3afe2c81e43c4d2c9d394f5b1a'/>
<id>urn:sha1:2e1b141a0132ad3afe2c81e43c4d2c9d394f5b1a</id>
<content type='text'>
Signed-off-by: Nguyễn Thái Ngọc Duy &lt;pclouds@gmail.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>Make git_check_attr() a void function</title>
<updated>2018-09-12T22:15:34Z</updated>
<author>
<name>Torsten Bögershausen</name>
<email>tboegi@web.de</email>
</author>
<published>2018-09-12T19:32:02Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=d64324cb60e4d0e1f5fdc1d3319c79ddbf5d0eb2'/>
<id>urn:sha1:d64324cb60e4d0e1f5fdc1d3319c79ddbf5d0eb2</id>
<content type='text'>
git_check_attr() returns always 0.
Remove all the error handling code of the callers, which is never executed.
Change git_check_attr() to be a void function.

Signed-off-by: Torsten Bögershausen &lt;tboegi@web.de&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>attr: remove index from git_attr_set_direction()</title>
<updated>2018-08-13T21:14:43Z</updated>
<author>
<name>Nguyễn Thái Ngọc Duy</name>
<email>pclouds@gmail.com</email>
</author>
<published>2018-08-13T16:14:33Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=c4500e251f89cbbc49fe90b832348ea9d4899946'/>
<id>urn:sha1:c4500e251f89cbbc49fe90b832348ea9d4899946</id>
<content type='text'>
Since attr checking API now take the index, there's no need to set an
index in advance with this call. Most call sites are straightforward
because they either pass the_index or NULL (which defaults back to
the_index previously). There's only one suspicious call site in
unpack-trees.c where it sets a different index.

This code in unpack-trees is about to check out entries from the
new/temporary index after merging is done in it. The attributes will
be used by entry.c code to do crlf conversion if needed. entry.c now
respects struct checkout's istate field, and this field is correctly
set in unpack-trees.c, there should be no regression from this change.

Signed-off-by: Nguyễn Thái Ngọc Duy &lt;pclouds@gmail.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
<entry>
<title>attr: remove an implicit dependency on the_index</title>
<updated>2018-08-13T21:14:42Z</updated>
<author>
<name>Nguyễn Thái Ngọc Duy</name>
<email>pclouds@gmail.com</email>
</author>
<published>2018-08-13T16:14:20Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/git/commit/?id=7a400a2c0270f2085b70690e4ddbfd8d141e69ca'/>
<id>urn:sha1:7a400a2c0270f2085b70690e4ddbfd8d141e69ca</id>
<content type='text'>
Make the attr API take an index_state instead of assuming the_index in
attr code. All call sites are converted blindly to keep the patch
simple and retain current behavior. Individual call sites may receive
further updates to use the right index instead of the_index.

There is one ugly temporary workaround added in attr.c that needs some
more explanation.

Commit c24f3abace (apply: file commited with CRLF should roundtrip
diff and apply - 2017-08-19) forces one convert_to_git() call to NOT
read the index at all. But what do you know, we read it anyway by
falling back to the_index. When "istate" from convert_to_git is now
propagated down to read_attr_from_array() we will hit segfault
somewhere inside read_blob_data_from_index.

The right way of dealing with this is to kill "use_index" variable and
only follow "istate" but at this stage we are not ready for that:
while most git_attr_set_direction() calls just passes the_index to be
assigned to use_index, unpack-trees passes a different one which is
used by entry.c code, which has no way to know what index to use if we
delete use_index. So this has to be done later.

Signed-off-by: Nguyễn Thái Ngọc Duy &lt;pclouds@gmail.com&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
</content>
</entry>
</feed>
