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When switching to another branch, the earlier code relied on incremental
invalidation of cache-tree entries to degrade it. While it is not wrong
per-se, we know that the resulting index must fully match the branch we
are switching to unless the -m (merge) option is used.
We should simply fully re-prime the cache-tree using the new tree object
in such a case. And for safety, invalidate the cache-tree as a whole in
other cases.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When switching to a new branch with "read-tree -m A B", the resulting
index must match tree B and we can prime the cache tree with it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The interface to build cache-tree belongs there.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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An earlier commit aab3b9a (read-tree A B C: do not create a bogus index
and do not segfault, 2009-03-12) resurrected the support for an obscure
(but useful) feature to read and overlay more than one tree into the index
without the -m (merge) option. But the fix was not enough.
Exercising this feature exposes a longstanding bug in the code that primes
the cache-tree in the index from the tree that was read. The intention
was that when we know that the index must exactly match the tree we just
read, we prime the entire cache-tree with it.
However, the logic to detect that case incorrectly triggered if you read
two trees without -m. This resulted in a corrupted cache-tree, and
write-tree would have produced an incorrect tree object out of such an
index.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ef/maint-fast-export:
builtin-fast-export.c: handle nested tags
builtin-fast-export.c: fix crash on tagged trees
builtin-fast-export.c: turn error into warning
test-suite: adding a test for fast-export with tag variants
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* mm/maint-add-p-quit:
Update git-add.txt according to the new possibilities of 'git add -p'.
add-interactive: refactor mode hunk handling
git add -p: new "quit" command at the prompt.
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* lt/maint-reflog-expire:
Speed up reflog pruning of unreachable commits
Clean up reflog unreachability pruning decision
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* jc/maint-shared-literally:
Update docs on behaviour of 'core.sharedRepository' and 'git init --shared'
t1301-shared-repo: fix forced modes test
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The text is merely cut-and-pasted from git-add--interactive.perl. The
cut-and-paste also fixes a typo.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The original implementation considered the mode separately
from the rest of the hunks, asking about it outside the main
hunk-selection loop. This patch instead places a mode change
as the first hunk in the loop. This has two advantages:
1. less duplicated code (since we use the main selection
loop). This also cleans up an inconsistency, which is
that the main selection loop separates options with a
comma, whereas the mode prompt used slashes.
2. users can now skip the mode change and come back to it,
search for it (via "/mode"), etc, as they can with other
hunks.
To facilitate this, each hunk is now marked with a "type".
Mode hunks are not considered for splitting (which would
make no sense, and also confuses the split_hunk function),
nor are they editable. In theory, one could edit the mode
lines and change to a new mode. In practice, there are only
two modes that git cares about (0644 and 0755), so either
you want to move from one to the other or not (and you can
do that by staging or not staging).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's already 'd' to stop staging hunks in a file, but no explicit
command to stop the interactive staging (for the current files and the
remaining ones). Of course you can do 'd' and then ^C, but it would be
more intuitive to allow 'quit' action.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Instead of doing the (potentially very expensive) "in_merge_base()"
check for each commit that might be pruned if it is unreachable, do a
preparatory reachability graph of the commit space, so that the common
case of being reachable can be tested directly.
[ Cleaned up a bit and tweaked to actually work. - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This clarifies the pruning rules for unreachable commits by having a
separate helpder function for the unreachability decision.
It's preparation for actual bigger changes to come to speed up the
decision when the reachability calculations become a bottleneck.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When tags that points to tags are passed to fast-export, an error is given,
saying "Tag [TAGNAME] points nowhere?". This fix calls parse_object() on the
object before referencing it's tag, to ensure the tag-info is fully initialized.
In addition, it inserts a comment to point out where nested tags are handled.
This is consistent with the comment for signed tags.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If a tag object points to a tree (or another unhandled type), the commit-
pointer is left uninitialized and later dereferenced. This patch adds a
default case to the switch that issues a warning and skips the object.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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fast-import doesn't have a syntax to support tree-objects (and some other
object-types), so fast-export shouldn't handle them. However, aborting the
operation is a bit drastic. This patch turns the error into a warning instead.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint-1.6.1:
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* maint-1.6.0:
doc/git-daemon: add missing arguments to options
init: Do not segfault on big GIT_TEMPLATE_DIR environment variable
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* bs/maint-1.6.0-tree-walk-prefix:
match_tree_entry(): a pathspec only matches at directory boundaries
tree_entry_interesting: a pathspec only matches at directory boundary
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* js/maint-submodule-checkout:
Fix 'git checkout <submodule>' to update the index
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* cb/maint-merge-recursive-submodule-fix:
simplify output of conflicting merge
update cache for conflicting submodule entries
add tests for merging with submodules
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Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint-1.6.0:
doc/git-daemon: add missing arguments to options
init: Do not segfault on big GIT_TEMPLATE_DIR environment variable
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Also fix some spellings and typos.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Frank Lichtenheld <flichtenheld@astaro.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It's imap.pass (not imap.password).
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This documentation update is needed to reflect the recent changes where
"core.sharedRepository = 0mode" was changed to set, not loosen, the
repository permissions.
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The gitattributes documentation has a section on the "diff"
attribute, with subsections for each of the things you might
want to configure in your diff config section (external
diff, hunk headers, etc). The first such subsection
specifically notes that the definition of the diff driver
should go into $GIT_DIR/config, but subsequent sections do
not.
This location is implied if you are reading the
documentation sequentially, but it is not uncommon for a new
user to jump to (or be referred to) a specific section. For
a new user who does not know git well enough to recognize
the config syntax, it is not clear that those directives
don't also go into the gitattributes file.
This patch just mentions the config file in each subsection,
similar to the way it is mentioned in the first.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint-1.6.1:
Fix buffer overflow in config parser
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* maint-1.6.0:
Fix buffer overflow in config parser
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When interpreting a config value, the config parser reads in 1+ space
character(s) and puts -one- space character in the buffer as soon as
the first non-space character is encountered (if not inside quotes).
Unfortunately the buffer size check lacks the extra space character
which gets inserted at the next non-space character, resulting in
a crash with a specially crafted config entry.
The unit test now uses Java to compile a platform independent
.NET framework to output the test string in C# :o)
Read: Thanks to Johannes Sixt for the correct printf call
which replaces the perl invocation.
Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Do not use non ASCII single quote.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint-1.6.1:
State the effect of filter-branch on graft explicitly
process_{tree,blob}: Remove useless xstrdup calls
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* maint-1.6.0:
State the effect of filter-branch on graft explicitly
process_{tree,blob}: Remove useless xstrdup calls
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Signed-off-by: Daniel Cheng (aka SDiZ) <j16sdiz+freenet@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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On Wed, 8 Apr 2009, Björn Steinbrink wrote:
>
> The name of the processed object was duplicated for passing it to
> add_object(), but that already calls path_name, which allocates a new
> string anyway. So the memory allocated by the xstrdup calls just went
> nowhere, leaking memory.
Ack, ack.
There's another easy 5% or so for the built-in object walker: once we've
created the hash from the name, the name isn't interesting any more, and
so something trivial like this can help a bit.
Does it matter? Probably not on its own. But a few more memory saving
tricks and it might all make a difference.
Linus
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This test was added recently (5a688fe, "core.sharedrepository = 0mode"
should set, not loosen; 2009-03-28). It checked the result of a sed
invocation for emptyness, but in some cases it forgot to print anything
at all, so that those checks would never be false.
Due to this mistake, it went unnoticed that the files in objects/info are
not necessarily 0440, but can also be 0660. Because the 0mode setting
tries to guarantee that the files are accessible only to the people they
are meant to be used by, we should only make sure that they are readable
by the user and the group when the configuration is set to 0660. It is a
separate matter from the core.shredrepository settings that w-bit from
immutable object files under objects/[0-9a-f][0-9a-f] directories should
be dropped.
COMMIT_EDITMSG is still world-readable, but it (and any transient files
that are meant for repositories with a work tree) does not matter. If you
are working on a shared machine and on a sekrit stuff, the root of the
work tree would be with mode 0700 (or 0750 to allow peeking by other
people in the group), and that would mean that .git/COMMIT_EDITMSG in such
a repository would not be readable by the strangers anyway.
Also, in the real-world use case, .git/COMMIT_EDITMSG will be given to an
arbitrary editor the user happens to use, and we have no guarantee what it
does (e.g. it may create a new file with umask and replace, it may rewrite
in place, it may leave an editor backup file but use umask to create it,
etc.), and the protection of the file lies majorly on the protection of
the root of the work tree.
This test cannot be run on Windows; it requires POSIXPERM when merged to
'master'.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/shared-literally:
t1301: loosen test for forced modes
set_shared_perm(): sometimes we know what the final mode bits should look like
move_temp_to_file(): do not forget to chmod() in "Coda hack" codepath
Move chmod(foo, 0444) into move_temp_to_file()
"core.sharedrepository = 0mode" should set, not loosen
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* jc/maint-1.6.0-diff-borrow-carefully:
diff --cached: do not borrow from a work tree when a path is marked as assume-unchanged
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* maint-1.6.1:
process_{tree,blob}: Remove useless xstrdup calls
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* maint-1.6.0:
process_{tree,blob}: Remove useless xstrdup calls
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* jc/maint-1.6.0-keep-pack:
pack-objects: don't loosen objects available in alternate or kept packs
t7700: demonstrate repack flaw which may loosen objects unnecessarily
Remove --kept-pack-only option and associated infrastructure
pack-objects: only repack or loosen objects residing in "local" packs
git-repack.sh: don't use --kept-pack-only option to pack-objects
t7700-repack: add two new tests demonstrating repacking flaws
is_kept_pack(): final clean-up
Simplify is_kept_pack()
Consolidate ignore_packed logic more
has_sha1_kept_pack(): take "struct rev_info"
has_sha1_pack(): refactor "pretend these packs do not exist" interface
git-repack: resist stray environment variable
Conflicts:
t/t7700-repack.sh
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* jc/maint-1.6.0-blame-s:
blame: read custom grafts given by -S before calling setup_revisions()
Conflicts:
builtin-blame.c
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* bc/maint-1.6.1-branch-deleted-was:
git-branch: display "was sha1" on branch deletion rather than just "sha1"
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Junio C Hamano
Nguyễn Thái Ngọc Duy
Matthieu Moy
Jeff King
Linus Torvalds
Erik Faye-Lund
Markus Heidelberg
Frank Lichtenheld
Paul Bolle
Johan Herland
Thomas Jarosch
Ulrich Windl
Daniel Cheng (aka SDiZ)
Johannes Sixt