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Teach fsck to not treat refs referring to missing promisor objects as an
error when extensions.partialclone is set.
For the purposes of warning about no default refs, such refs are still
treated as legitimate refs.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, Git does not support repos with very large numbers of objects
or repos that wish to minimize manipulation of certain blobs (for
example, because they are very large) very well, even if the user
operates mostly on part of the repo, because Git is designed on the
assumption that every referenced object is available somewhere in the
repo storage. In such an arrangement, the full set of objects is usually
available in remote storage, ready to be lazily downloaded.
Teach fsck about the new state of affairs. In this commit, teach fsck
that missing promisor objects referenced from the reflog are not an
error case; in future commits, fsck will be taught about other cases.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce new repository extension option:
`extensions.partialclone`
See the update to Documentation/technical/repository-version.txt
in this patch for more information.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach rev-list to support --no-filter to override a
previous --filter=<filter_spec> argument. This is
to be consistent with commands that use OPT_PARSE
macros.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach opt_parse_list_objects_filter() to take --no-filter
option and to free the contents of struct filter_options.
This command line argument will be automatically inherited
by commands using OPT_PARSE_LIST_OBJECTS_FILTER(); this
includes pack-objects.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach pack-objects to use the filtering provided by the
traverse_commit_list_filtered() interface to omit unwanted
objects from the resulting packfile.
Filtering requires the use of the "--stdout" option.
Add t5317 test.
In the future, we will introduce a "partial clone" mechanism
wherein an object in a repo, obtained from a remote, may
reference a missing object that can be dynamically fetched from
that remote once needed. This "partial clone" mechanism will
have a way, sometimes slow, of determining if a missing link
is one of the links expected to be produced by this mechanism.
This patch introduces handling of missing objects to help
debugging and development of the "partial clone" mechanism,
and once the mechanism is implemented, for a power user to
perform operations that are missing-object aware without
incurring the cost of checking if a missing link is expected.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach rev-list to use the filtering provided by the
traverse_commit_list_filtered() interface to omit
unwanted objects from the result.
Object filtering is only allowed when one of the "--objects*"
options are used.
When the "--filter-print-omitted" option is used, the omitted
objects are printed at the end. These are marked with a "~".
This option can be combined with "--quiet" to get a list of
just the omitted objects.
Add t6112 test.
In the future, we will introduce a "partial clone" mechanism
wherein an object in a repo, obtained from a remote, may
reference a missing object that can be dynamically fetched from
that remote once needed. This "partial clone" mechanism will
have a way, sometimes slow, of determining if a missing link
is one of the links expected to be produced by this mechanism.
This patch introduces handling of missing objects to help
debugging and development of the "partial clone" mechanism,
and once the mechanism is implemented, for a power user to
perform operations that are missing-object aware without
incurring the cost of checking if a missing link is expected.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Create traverse_commit_list_filtered() and add filtering
interface to allow certain objects to be omitted from the
traversal.
Update traverse_commit_list() to be a wrapper for the above
with a null filter to minimize the number of callers that
needed to be changed.
Object filtering will be used in a future commit by rev-list
and pack-objects for partial clone and fetch to omit unwanted
objects from the result.
traverse_bitmap_commit_list() does not work with filtering.
If a packfile bitmap is present, it will not be used. It
should be possible to extend such support in the future (at
least to simple filters that do not require object pathnames),
but that is beyond the scope of this patch series.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add the usual iterator methods to oidset.
Add oidset_remove().
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add the usual map iterator functions to oidmap.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refactor add_excludes() to separate the reading of the
exclude file into a buffer and the parsing of the buffer
into exclude_list items.
Add add_excludes_from_blob_to_list() to allow an exclude
file be specified with an OID without assuming a local
worktree or index exists.
Refactor read_skip_worktree_file_from_index() and add
do_read_blob() to eliminate duplication of preliminary
processing of blob contents.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Reviewed-by: Jonathan Tan <jonathantanmy@google.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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l10n for Git 2.15.0 round 2 with Catalan updates
* tag 'l10n-2.15.0-rnd2.1' of git://github.com/git-l10n/git-po:
l10n: Update Catalan translation
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Signed-off-by: Jordi Mas <jmas@softcatala.org>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc flow fix.
* sg/rev-list-doc-reorder-fix:
rev-list-options.txt: use correct directional reference
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Doc markup fix.
* sb/rev-parse-show-superproject-root:
docs: fix formatting of rev-parse's --show-superproject-working-tree
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A possible oom error is now caught as a fatal error, instead of
continuing and dereferencing NULL.
* ao/path-use-xmalloc:
path.c: use xmalloc() in add_to_trie()
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Doc update.
* np/config-path-doc:
config doc: clarify "git config --path" example
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Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The descriptions of the options '--parents', '--children' and
'--graph' say "see 'History Simplification' below", although the
referred section is in fact above the description of these options.
Send readers in the right direction by saying "above" instead of
"below".
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Transactions to update multiple references that involves a deletion
was quite broken in an error codepath and did not abort everything
correctly.
* mh/ref-locking-fix:
files_transaction_prepare(): fix handling of ref lock failure
t1404: add a bunch of tests of D/F conflicts
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Add usage of xmalloc() instead of malloc() in add_to_trie() as xmalloc wraps
and checks memory allocation result.
Signed-off-by: Andrey Okoshkin <a.okoshkin@samsung.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since dc39e09942 (files_ref_store: use a transaction to update packed
refs, 2017-09-08), failure to lock a reference has been handled
incorrectly by `files_transaction_prepare()`. If
`lock_ref_for_update()` fails in the lock-acquisition loop of that
function, it sets `ret` then breaks out of that loop. Prior to
dc39e09942, that was OK, because the only thing following the loop was
the cleanup code. But dc39e09942 added another blurb of code between
the loop and the cleanup. That blurb sometimes resets `ret` to zero,
making the cleanup code think that the locking was successful.
Specifically, whenever
* One or more reference deletions have been processed successfully in
the lock-acquisition loop. (Processing the first such reference
causes a packed-ref transaction to be initialized.)
* Then `lock_ref_for_update()` fails for a subsequent reference. Such
a failure can happen for a number of reasons, such as the old SHA-1
not being correct, lock contention, etc. This causes a `break` out
of the lock-acquisition loop.
* The `packed-refs` lock is acquired successfully and
`ref_transaction_prepare()` succeeds for the packed-ref transaction.
This has the effect of resetting `ret` back to 0, and making the
cleanup code think that lock acquisition was successful.
In that case, any reference updates that were processed prior to
breaking out of the loop would be carried out (loose and packed), but
the reference that couldn't be locked and any subsequent references
would silently be ignored.
This can easily cause data loss if, for example, the user was trying
to push a new name for an existing branch while deleting the old name.
After the push, the branch could be left unreachable, and could even
subsequently be garbage-collected.
This problem was noticed in the context of deleting one reference and
creating another in a single transaction, when the two references D/F
conflict with each other, like
git update-ref --stdin <<EOF
delete refs/foo
create refs/foo/bar HEAD
EOF
This triggers the above bug because the deletion is processed
successfully for `refs/foo`, then the D/F conflict causes
`lock_ref_for_update()` to fail when `refs/foo/bar` is processed. In
this case the transaction *should* fail, but instead it causes
`refs/foo` to be deleted without creating `refs/foo`. This could
easily result in data loss.
The fix is simple: instead of just breaking out of the loop, jump
directly to the cleanup code. This fixes some tests in t1404 that were
added in the previous commit.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is currently not allowed, in a single transaction, to add one
reference and delete another reference if the two reference names D/F
conflict with each other (e.g., like `refs/foo/bar` and `refs/foo`).
The reason is that the code would need to take locks
$GIT_DIR/refs/foo.lock
$GIT_DIR/refs/foo/bar.lock
But the latter lock couldn't coexist with the loose reference file
$GIT_DIR/refs/foo
, because `$GIT_DIR/refs/foo` cannot be both a directory and a file at
the same time (hence the name "D/F conflict).
Add a bunch of tests that we cleanly reject such transactions.
In fact, many of the new tests currently fail. They will be fixed in
the next commit along with an explanation.
Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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l10n for Git 2.15.0 round 2
* tag 'l10n-2.15.0-rnd2' of git://github.com/git-l10n/git-po: (22 commits)
l10n: zh_CN: review for git v2.15.0 l10n round 2
l10n: zh_CN: for git v2.15.0 l10n round 2
l10n: de.po: fix typos
l10n: de.po: translate 70 new messages
l10n: ru.po: update Russian translation
l10n: vi.po(3245t): Updated Vietnamese translation for v2.15.0 round 2
l10n: sv.po: Update Swedish translation (3245t0f0u)
l10n: fr.po: v2.15.0 round 2
l10n: fr.po change translation of "First, rewinding"
l10n: fr.po fix some mistakes
l10n: Update Catalan translation
l10n: ko.po: Update Korean translation
l10n: es.po: v2.15.0 round 2
l10n: git.pot: v2.15.0 round 2 (2 new, 2 removed)
l10n: ru.po: update Russian translation
l10n: bg.po: Updated Bulgarian translation (3245t)
l10n: sv.po: Update Swedish translation (3245t0f0u)
l10n: vi.po(3245t): Updated Vietnamese translation for v2.15.0
l10n: es.po: Update translation v2.15.0 round 1
l10n: git.pot: v2.15.0 round 1 (68 new, 36 removed)
...
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* 'jx/zh_CN-proposed' of github.com:jiangxin/git:
l10n: zh_CN: review for git v2.15.0 l10n round 2
l10n: zh_CN: for git v2.15.0 l10n round 2
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Signed-off-by: Ray Chen <oldsharp@gmail.com>
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Translate 69 messages (3245t0f0u) for git v2.15.0-rc2.
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Reviewed-by: 依云 <lilydjwg@gmail.com>
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* 'master' of https://github.com/ralfth/git-po-de:
l10n: de.po: fix typos
l10n: de.po: translate 70 new messages
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Signed-off-by: Andre Hinrichs <andre.hinrichs@gmx.de>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
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Translate 70 new messages came from git.pot update in 25eab542b
(l10n: git.pot: v2.15.0 round 1 (68 new, 36 removed)) and 9c07fab78
(l10n: git.pot: v2.15.0 round 2 (2 new, 2 removed)).
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A regression fix for 2.11 that made the code to read the list of
alternate object stores overrun the end of the string.
* jk/info-alternates-fix:
read_info_alternates: warn on non-trivial errors
read_info_alternates: read contents into strbuf
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"git fetch <there> <src>:<dst>" allows an object name on the <src>
side when the other side accepts such a request since Git v2.5, but
the documentation was left stale.
* jc/fetch-refspec-doc-update:
fetch doc: src side of refspec could be full SHA-1
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Many codepaths did not diagnose write failures correctly when disks
go full, due to their misuse of write_in_full() helper function,
which have been corrected.
* jk/write-in-full-fix:
read_pack_header: handle signed/unsigned comparison in read result
config: flip return value of store_write_*()
notes-merge: use ssize_t for write_in_full() return value
pkt-line: check write_in_full() errors against "< 0"
convert less-trivial versions of "write_in_full() != len"
avoid "write_in_full(fd, buf, len) != len" pattern
get-tar-commit-id: check write_in_full() return against 0
config: avoid "write_in_full(fd, buf, len) < len" pattern
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Many codepaths have been updated to squelch -Wsign-compare
warnings.
* rj/no-sign-compare:
ALLOC_GROW: avoid -Wsign-compare warnings
cache.h: hex2chr() - avoid -Wsign-compare warnings
commit-slab.h: avoid -Wsign-compare warnings
git-compat-util.h: xsize_t() - avoid -Wsign-compare warnings
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Assorted bugfixes and clean-ups.
* ma/ts-cleanups:
ThreadSanitizer: add suppressions
strbuf_setlen: don't write to strbuf_slopbuf
pack-objects: take lock before accessing `remaining`
convert: always initialize attr_action in convert_attrs
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The scripts to drive TravisCI has been reorganized and then an
optimization to avoid spending cycles on a branch whose tip is
tagged has been implemented.
* ls/travis-scriptify:
travis-ci: fix "skip_branch_tip_with_tag()" string comparison
travis: dedent a few scripts that are indented overly deeply
travis-ci: skip a branch build if equal tag is present
travis-ci: move Travis CI code into dedicated scripts
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The checkpoint command "git fast-import" did not flush updates to
refs and marks unless at least one object was created since the
last checkpoint, which has been corrected, as these things can
happen without any new object getting created.
* er/fast-import-dump-refs-on-checkpoint:
fast-import: checkpoint: dump branches/tags/marks even if object_count==0
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"git fast-export" with -M/-C option issued "copy" instruction on a
path that is simultaneously modified, which was incorrect.
* jt/fast-export-copy-modify-fix:
fast-export: do not copy from modified file
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"git branch -M a b" while on a branch that is completely unrelated
to either branch a or branch b misbehaved when multiple worktree
was in use. This has been fixed.
* nd/worktree-kill-parse-ref:
branch: fix branch renaming not updating HEADs correctly
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Signed-off-by: Dimitriy Ryazantcev <dimitriy.ryazantcev@gmail.com>
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* 'master' of https://github.com/vnwildman/git:
l10n: vi.po(3245t): Updated Vietnamese translation for v2.15.0 round 2
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc update.
* jc/branch-force-doc-readability-fix:
branch doc: sprinkle a few commas for readability
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Update the documentation for "git filter-branch" so that the filter
options are listed in the same order as they are applied, as
described in an earlier part of the doc.
* dg/filter-branch-filter-order-doc:
doc: list filter-branch subdirectory-filter first
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"git fetch <there> <src>:<dst>" allows an object name on the <src>
side when the other side accepts such a request since Git v2.5, but
the documentation was left stale.
* jc/fetch-refspec-doc-update:
fetch doc: src side of refspec could be full SHA-1
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Jonathan Tan
Jeff Hostetler
Christian Couder
Junio C Hamano
Jordi Mas
Sebastian Schuberth
SZEDER Gábor
Andrey Okoshkin
Michael Haggerty
Jiang Xin
Ray Chen
Andre Hinrichs
Ralf Thielow
Dimitriy Ryazantcev