| Age | Commit message (Collapse) | Author | Files | Lines |
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Prepare to flip the default hash function to SHA-256.
* bc/use-sha256-by-default-in-3.0:
Enable SHA-256 by default in breaking changes mode
help: add a build option for default hash
t5300: choose the built-in hash outside of a repo
t4042: choose the built-in hash outside of a repo
t1007: choose the built-in hash outside of a repo
t: default to compile-time default hash if not set
setup: use the default algorithm to initialize repo format
Use legacy hash for legacy formats
builtin: use default hash when outside a repository
hash: add a constant for the legacy hash algorithm
hash: add a constant for the default hash algorithm
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We have a large variety of data formats and protocols where no hash
algorithm was defined and the default was assumed to always be SHA-1.
Instead of explicitly stating SHA-1, let's use the constant to represent
the legacy hash algorithm (which is still SHA-1) so that it's clear
for documentary purposes that it's a legacy fallback option and not an
intentional choice to use SHA-1.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Rename `repo_read_object_file()` to `odb_read_object()` to match other
functions related to the object database and our modern coding
guidelines.
Introduce a compatibility wrapper so that any in-flight topics will
continue to compile.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the preceding commits we have renamed the structures contained in
"object-store.h" to `struct object_database` and `struct odb_backend`.
As such, the code files "object-store.{c,h}" are confusingly named now.
Rename them to "odb.{c,h}" accordingly.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `object_directory` structure is used as an access point for a single
object directory like ".git/objects". While the structure isn't yet
fully self-contained, the intent is for it to eventually contain all
information required to access objects in one specific location.
While the name "object directory" is a good fit for now, this will
change over time as we continue with the agenda to make pluggable object
databases a thing. Eventually, objects may not be accessed via any kind
of directory at all anymore, but they could instead be backed by any
kind of durable storage mechanism. While it seems quite far-fetched for
now, it is thinkable that eventually this might even be some form of a
database, for example.
As such, the current name of this structure will become worse over time
as we evolve into the direction of pluggable ODBs. Immediate next steps
will start to carve out proper self-contained object directories, which
requires us to pass in these object directories as parameters. Based on
our modern naming schema this means that those functions should then be
named after their subsystem, which means that we would start to bake the
current name into the codebase more and more.
Let's preempt this by renaming the structure. There have been a couple
alternatives that were discussed:
- `odb_backend` was discarded because it led to the association that
one object database has a single backend, but the model is that one
alternate has one backend. Furthermore, "backend" is more about the
actual backing implementation and less about the high-level concept.
- `odb_alternate` was discarded because it is a bit of a stretch to
also call the main object directory an "alternate".
Instead, pick `odb_source` as the new name. It makes it sufficiently
clear that there can be multiple sources and does not cause confusion
when mixed with the already-existing "alternate" terminology.
In the future, this change allows us to easily introduce for example a
`odb_files_source` and other format-specific implementations.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up.
* ps/object-file-cleanup:
object-store: merge "object-store-ll.h" and "object-store.h"
object-store: remove global array of cached objects
object: split out functions relating to object store subsystem
object-file: drop `index_blob_stream()`
object-file: split up concerns of `HASH_*` flags
object-file: split out functions relating to object store subsystem
object-file: move `xmmap()` into "wrapper.c"
object-file: move `git_open_cloexec()` to "compat/open.c"
object-file: move `safe_create_leading_directories()` into "path.c"
object-file: move `mkdir_in_gitdir()` into "path.c"
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The "object-store-ll.h" header has been introduced to keep transitive
header dependendcies and compile times at bay. Now that we have created
a new "object-store.c" file though we can easily move the last remaining
additional bit of "object-store.h", the `odb_path_map`, out of the
header.
Do so. As the "object-store.h" header is now equivalent to its low-level
alternative we drop the latter and inline it into the former.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The 'git bundle create' command has non-linear performance with the
number of refs in the repository. Benchmarking the command shows that
a large portion of the time (~75%) is spent in the
`object_array_remove_duplicates()` function.
The `object_array_remove_duplicates()` function was added in
b2a6d1c686 (bundle: allow the same ref to be given more than once,
2009-01-17) to skip duplicate refs provided by the user from being
written to the bundle. Since this is an O(N^2) algorithm, in repos with
large number of references, this can take up a large amount of time.
Let's instead use a 'strset' to skip duplicates inside
`write_bundle_refs()`. This improves the performance by around 6 times
when tested against in repository with 100000 refs:
Benchmark 1: bundle (refcount = 100000, revision = master)
Time (mean ± σ): 14.653 s ± 0.203 s [User: 13.940 s, System: 0.762 s]
Range (min … max): 14.237 s … 14.920 s 10 runs
Benchmark 2: bundle (refcount = 100000, revision = HEAD)
Time (mean ± σ): 2.394 s ± 0.023 s [User: 1.684 s, System: 0.798 s]
Range (min … max): 2.364 s … 2.425 s 10 runs
Summary
bundle (refcount = 100000, revision = HEAD) ran
6.12 ± 0.10 times faster than bundle (refcount = 100000, revision = master)
Previously, `object_array_remove_duplicates()` ensured that both the
refname and the object it pointed to were checked for duplicates. The
new approach, implemented within `write_bundle_refs()`, eliminates
duplicate refnames without comparing the objects they reference. This
works because, for bundle creation, we only need to prevent duplicate
refs from being written to the bundle header. The `revs->pending` array
can contain duplicates of multiple types.
First, references which resolve to the same refname. For e.g. "git
bundle create out.bdl master master" or "git bundle create out.bdl
refs/heads/master refs/heads/master" or "git bundle create out.bdl
master refs/heads/master". In these scenarios we want to prevent writing
"refs/heads/master" twice to the bundle header. Since both the refnames
here would point to the same object (unless there is a race), we do not
need to check equality of the object.
Second, refnames which are duplicates but do not point to the same
object. This can happen when we use an exclusion criteria. For e.g. "git
bundle create out.bdl master master^!", Here `revs->pending` would
contain two elements, both with refname set to "master". However, each
of them would be pointing to an INTERESTING and UNINTERESTING object
respectively. Since we only write refnames with INTERESTING objects to
the bundle header, we perform our duplicate checks only on such objects.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Already when introduced in c7a8a16239 (Add bundle transport,
2007-09-10), the `bundle` transport had a bug where it would open a file
descriptor to the bundle file and then close it _twice_: First, the file
descriptor (`data->fd`) is passed to `unbundle()`, which would use it as
the `stdin` of the `index-pack` process, which as a consequence would
close it via `start_command()`. However, `data->fd` would still hold the
numerical value of the file descriptor, and `close_bundle()` would see
that and happily close it again.
This seems not to have caused too many problems in almost two decades,
but I encountered a situation today where it _does_ cause problems: In
i686 variants of Git for Windows, it seems that file descriptors are
reused quickly after they have been closed.
In the particular scenario I faced, `git fetch <bundle> <ref>` gets the
same file descriptor value when opening the bundle file and importing
its embedded packfile (which implicitly closes the file descriptor) and
then when opening a pack file in `fetch_and_consume_refs()` while
looking up an object's header.
Later on, after the bundle has been imported (and the `close_bundle()`
function erroneously closes the file descriptor that has _already_ been
closed when using it as `stdin` for `git index-pack`), the same file
descriptor value has now been reused via `use_pack()`. Now, when either
the recursive fetch (which defaults to "on", unfortunately) or a
commit-graph update needs to `mmap()` the packfile, it fails due to a
now-invalid file descriptor that _should_ point to the pack file but
doesn't anymore.
To fix that, let's invalidate `data->fd` after calling `unbundle()`.
That way, `close_bundle()` does not close a file descriptor that may
have been reused for something different. While at it, document that
`unbundle()` closes the file descriptor, and ensure that it also does
that when failing to verify the bundle.
Luckily, this bug does not affect the bundle URI feature, it only
affects the `git fetch <bundle>` code path.
Note that this patch does not _completely_ clarifies who is responsible
to close that file descriptor, as `run_command()` may fail _without_
closing `cmd->in`. Addressing this issue thoroughly, however, would
require a rather thorough re-design of the `start_command()` and
`finish_command()` functionality to make it a lot less murky who is
responsible for what file descriptors.
At least this here patch is relatively easy to reason about, and
addresses a hard failure (`fatal: mmap: could not determine filesize`)
at the expense of leaking a file descriptor under very rare
circumstances in which `git fetch` would error out anyway.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Start working to make the codebase buildable with -Wsign-compare.
* ps/build-sign-compare:
t/helper: don't depend on implicit wraparound
scalar: address -Wsign-compare warnings
builtin/patch-id: fix type of `get_one_patchid()`
builtin/blame: fix type of `length` variable when emitting object ID
gpg-interface: address -Wsign-comparison warnings
daemon: fix type of `max_connections`
daemon: fix loops that have mismatching integer types
global: trivial conversions to fix `-Wsign-compare` warnings
pkt-line: fix -Wsign-compare warning on 32 bit platform
csum-file: fix -Wsign-compare warning on 32-bit platform
diff.h: fix index used to loop through unsigned integer
config.mak.dev: drop `-Wno-sign-compare`
global: mark code units that generate warnings with `-Wsign-compare`
compat/win32: fix -Wsign-compare warning in "wWinMain()"
compat/regex: explicitly ignore "-Wsign-compare" warnings
git-compat-util: introduce macros to disable "-Wsign-compare" warnings
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"git bundle create" with an annotated tag on the positive end of
the revision range had a workaround code for older limitation in
the revision walker, which has become unnecessary.
* tc/bundle-with-tag-remove-workaround:
bundle: remove unneeded code
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The changes in commit c06793a4ed (allow git-bundle to create bottomless
bundle, 2007-08-08) ensure annotated tags are properly preserved when
creating a bundle using a revision range operation.
At the time the range notation would peel the ends to their
corresponding commit, meaning ref v2.0 would point to the v2.0^0 commit.
So the above workaround was introduced. This code looks up the ref
before it's written to the bundle, and if the ref doesn't point to the
object we expect (for tags this would be a tag object), we skip the ref
from the bundle. Instead, when the ref is a tag that's the positive end
of the range (e.g. v2.0 from the range "v1.0..v2.0"), then that ref is
written to the bundle instead.
Later, in 895c5ba3c1 (revision: do not peel tags used in range notation,
2013-09-19), the behavior of parsing ranges was changed and the problem
was fixed at the cause. But the workaround in bundle.c was not reverted.
Now it seems this workaround can cause a race condition. git-bundle(1)
uses setup_revisions() to parse the input into `struct rev_info`. Later,
in write_bundle_refs(), it uses this info to write refs to the bundle.
As mentioned at this point each ref is looked up again and checked
whether it points to the object we expect. If not, the ref is not
written to the bundle. But, when creating a bundle in a heavy traffic
repository (a repo with many references, and frequent ref updates) it's
possible a branch ref was updated between setup_revisions() and
write_bundle_refs() and thus the extra check causes the ref to be
skipped.
The workaround was originally added to deal with tags, but the code path
also gets hit by non-tag refs, causing this race condition. Because it's
no longer needed, remove it and fix the possible race condition.
Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Mark code units that generate warnings with `-Wsign-compare`. This
allows for a structured approach to get rid of all such warnings over
time in a way that can be easily measured.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If the `VERIFY_BUNDLE_FLAG` is set during `unbundle()`, the
git-index-pack(1) spawned is configured with the `--fsck-options` flag
to perform fsck verification. With this flag enabled, there is not a way
to configure fsck message severity though.
Extend the `unbundle_opts` type to store fsck message severity
configuration and update `unbundle()` to conditionally append it to the
`--fsck-objects` flag if provided. This enables `unbundle()` call sites
to support optionally setting the severity for specific fsck messages.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When `unbundle()` is invoked, fsck verification may be configured by
passing the `VERIFY_BUNDLE_FSCK` flag. This mechanism allows fsck checks
on the bundle to be enabled or disabled entirely. To facilitate more
fine-grained fsck configuration, additional context must be provided to
`unbundle()`.
Introduce the `unbundle_opts` type, which wraps the existing
`verify_bundle_flags`, to facilitate future extension of `unbundle()`
configuration. Also update `unbundle()` and its call sites to accept
this new options type instead of the flags directly. The end behavior is
functionally the same, but allows for the set of configurable options to
be extended. This is leveraged in a subsequent commit to enable fsck
message severity configuration.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Even more leak fixes.
* ps/leakfixes-part-5:
transport: fix leaking negotiation tips
transport: fix leaking arguments when fetching from bundle
builtin/fetch: fix leaking transaction with `--atomic`
remote: fix leaking peer ref when expanding refmap
remote: fix leaks when matching refspecs
remote: fix leaking config strings
builtin/fetch-pack: fix leaking refs
sideband: fix leaks when configuring sideband colors
builtin/send-pack: fix leaking refspecs
transport: fix leaking OID arrays in git:// transport data
t/helper: fix leaking multi-pack-indices in "read-midx"
builtin/repack: fix leaks when computing packs to repack
midx-write: fix leaking hashfile on error cases
builtin/archive: fix leaking `OPT_FILENAME()` value
builtin/upload-archive: fix leaking args passed to `write_archive()`
builtin/merge-tree: fix leaking `-X` strategy options
pretty: fix leaking key/value separator buffer
pretty: fix memory leaks when parsing pretty formats
convert: fix leaks when resetting attributes
mailinfo: fix leaking header data
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In `fetch_refs_from_bundle()` we assemble a vector of arguments to pass
to `unbundle()`, but never free it. And in theory we wouldn't have to
because `unbundle()` already knows to free the vector for us. But it
fails to do so when it exits early due to `verify_bundle()` failing.
The calling convention that the arguments are freed by the callee and
not the caller feels somewhat weird. Refactor the code such that it is
instead the responsibility of the caller to free the vector, adapting
the only two callsites where we pass extra arguments. This also fixes
the memory leak.
This memory leak gets hit in t5510, but fixing it isn't sufficient to
make the whole test suite pass.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We hit a segfault when trying to open a bundle via `git bundle
list-heads` when running outside of a repository. This is caused by
c8aed5e8da (repository: stop setting SHA1 as the default object hash,
2024-05-07), which stopped setting the default object hash so that
`the_hash_algo` is a `NULL` pointer when running outside of any repo.
This is only a symptom of a deeper issue though. Bundles default to the
SHA1 object format unless they advertise an "@object-format=" header.
Consequently, it has been wrong in the first place to use the object
format used by the current repository when parsing bundles. The
consequence is that trying to open a bundle that uses a different object
hash than the current repository will fail:
$ git bundle list-heads sha1.bundle
error: unrecognized header: ee4b540943284700a32591ad09f7e15bdeb2a10c HEAD (45)
Fix the bug by defaulting to the SHA1 object hash. We already handle the
"@object-format=" header as expected, so we don't need to adapt this
part.
Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When bundleURI interface fetches multiple bundles, Git failed to
take full advantage of all bundles and ended up slurping duplicated
objects.
* xx/bundie-uri-fixes:
unbundle: extend object verification for fetches
fetch-pack: expose fsckObjects configuration logic
bundle-uri: verify oid before writing refs
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More memory leaks have been plugged.
* ps/leakfixes-more: (29 commits)
builtin/blame: fix leaking ignore revs files
builtin/blame: fix leaking prefixed paths
blame: fix leaking data for blame scoreboards
line-range: plug leaking find functions
merge: fix leaking merge bases
builtin/merge: fix leaking `struct cmdnames` in `get_strategy()`
sequencer: fix memory leaks in `make_script_with_merges()`
builtin/clone: plug leaking HEAD ref in `wanted_peer_refs()`
apply: fix leaking string in `match_fragment()`
sequencer: fix leaking string buffer in `commit_staged_changes()`
commit: fix leaking parents when calling `commit_tree_extended()`
config: fix leaking "core.notesref" variable
rerere: fix various trivial leaks
builtin/stash: fix leak in `show_stash()`
revision: free diff options
builtin/log: fix leaking commit list in git-cherry(1)
merge-recursive: fix memory leak when finalizing merge
builtin/merge-recursive: fix leaking object ID bases
builtin/difftool: plug memory leaks in `run_dir_diff()`
object-name: free leaking object contexts
...
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The existing fetch.fsckObjects and transfer.fsckObjects configurations
were not fully applied to bundle-involved fetches, including direct
bundle fetches and bundle-uri enabled fetches. Furthermore, there was no
object verification support for unbundle.
This commit extends object verification support in `bundle.c:unbundle`
by adding the `VERIFY_BUNDLE_FSCK` option to `verify_bundle_flags`. When
this option is enabled, we append the `--fsck-objects` flag to
`git-index-pack`.
The `VERIFY_BUNDLE_FSCK` option is now used by bundle-involved fetches,
where we use `fetch-pack.c:fetch_pack_fsck_objects` to determine whether
to enable this option for `bundle.c:unbundle`, specifically in:
- `transport.c:fetch_refs_from_bundle` for direct bundle fetches.
- `bundle-uri.c:unbundle_from_file` for bundle-uri enabled fetches.
This addition ensures a consistent logic for object verification during
fetches. Tests have been added to confirm functionality in the scenarios
mentioned above.
Reviewed-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Xing Xin <xingxin.xx@bytedance.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use of the `the_repository` variable is deprecated nowadays, and we
slowly but steadily convert the codebase to not use it anymore. Instead,
callers should be passing down the repository to work on via parameters.
It is hard though to prove that a given code unit does not use this
variable anymore. The most trivial case, merely demonstrating that there
is no direct use of `the_repository`, is already a bit of a pain during
code reviews as the reviewer needs to manually verify claims made by the
patch author. The bigger problem though is that we have many interfaces
that implicitly rely on `the_repository`.
Introduce a new `USE_THE_REPOSITORY_VARIABLE` macro that allows code
units to opt into usage of `the_repository`. The intent of this macro is
to demonstrate that a certain code unit does not use this variable
anymore, and to keep it from new dependencies on it in future changes,
be it explicit or implicit
For now, the macro only guards `the_repository` itself as well as
`the_hash_algo`. There are many more known interfaces where we have an
implicit dependency on `the_repository`, but those are not guarded at
the current point in time. Over time though, we should start to add
guards as required (or even better, just remove them).
Define the macro as required in our code units. As expected, most of our
code still relies on the global variable. Nearly all of our builtins
rely on the variable as there is no way yet to pass `the_repository` to
their entry point. For now, declare the macro in "biultin.h" to keep the
required changes at least a little bit more contained.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When creating a bundle, we set up a revision walk, but never release
data associated with it. Furthermore, we create a mostly-shallow copy of
that revision walk where we only adapt its pending objects such that we
can reuse the walk. While that copy must not be released, the pending
objects array need to be.
Plug those memory leaks by releasing the revision walk and the pending
objects of the copied revision walk.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the rules that rewrite callers of "refs" interfaces to explicitly
pass `struct ref_store`. The resulting patch has been applied with the
`--whitespace=fix` option.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update message mark-up for i18n in "git bundle".
* dk/bundle-i18n-more:
i18n: mark more bundle.c strings for translation
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These two messages were introduced in 8ba221e245 (bundle: output hash
information in 'verify', 2022-03-22) and 105c6f14ad (bundle: parse
filter capability, 2022-03-09) but never for translation.
Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The vast majority of files including object-store.h did not need dir.h
nor khash.h. Split the header into two files, and let most just depend
upon object-store-ll.h, while letting the two callers that need it
depend on the full object-store.h.
After this patch:
$ git grep -h include..object-store | sort | uniq -c
2 #include "object-store.h"
129 #include "object-store-ll.h"
Diff best viewed with `--color-moved`.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Acked-by: Calvin Wan <calvinwan@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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en/header-split-cache-h
* ab/remove-implicit-use-of-the-repository:
libs: use "struct repository *" argument, not "the_repository"
post-cocci: adjust comments for recent repo_* migration
cocci: apply the "revision.h" part of "the_repository.pending"
cocci: apply the "rerere.h" part of "the_repository.pending"
cocci: apply the "refs.h" part of "the_repository.pending"
cocci: apply the "promisor-remote.h" part of "the_repository.pending"
cocci: apply the "packfile.h" part of "the_repository.pending"
cocci: apply the "pretty.h" part of "the_repository.pending"
cocci: apply the "object-store.h" part of "the_repository.pending"
cocci: apply the "diff.h" part of "the_repository.pending"
cocci: apply the "commit.h" part of "the_repository.pending"
cocci: apply the "commit-reach.h" part of "the_repository.pending"
cocci: apply the "cache.h" part of "the_repository.pending"
cocci: add missing "the_repository" macros to "pending"
cocci: sort "the_repository" rules by header
cocci: fix incorrect & verbose "the_repository" rules
cocci: remove dead rule from "the_repository.pending.cocci"
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Apply the part of "the_repository.pending.cocci" pertaining to
"refs.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"object-store.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Dozens of files made use of gettext functions, without explicitly
including gettext.h. This made it more difficult to find which files
could remove a dependence on cache.h. Make C files explicitly include
gettext.h if they are using it.
However, while compat/fsmonitor/fsm-ipc-darwin.c should also gain an
include of gettext.h, it was left out to avoid conflicting with an
in-flight topic.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Leak fixes.
* ab/various-leak-fixes:
push: free_refs() the "local_refs" in set_refspecs()
push: refactor refspec_append_mapped() for subsequent leak-fix
receive-pack: release the linked "struct command *" list
grep API: plug memory leaks by freeing "header_list"
grep.c: refactor free_grep_patterns()
builtin/merge.c: free "&buf" on "Your local changes..." error
builtin/merge.c: use fixed strings, not "strbuf", fix leak
show-branch: free() allocated "head" before return
commit-graph: fix a parse_options_concat() leak
http-backend.c: fix cmd_main() memory leak, refactor reg{exec,free}()
http-backend.c: fix "dir" and "cmd_arg" leaks in cmd_main()
worktree: fix a trivial leak in prune_worktrees()
repack: fix leaks on error with "goto cleanup"
name-rev: don't xstrdup() an already dup'd string
various: add missing clear_pathspec(), fix leaks
clone: use free() instead of UNLEAK()
commit-graph: use free_commit_graph() instead of UNLEAK()
bundle.c: don't leak the "args" in the "struct child_process"
tests: mark tests as passing with SANITIZE=leak
|
|
Fix a leak that's been here since 7366096de9d (bundle API: change
"flags" to be "extra_index_pack_args", 2021-09-05). If we can't verify
the bundle, we didn't call child_process_clear() to clear the "args".
But rather than adding an additional child_process_clear() call, let's
verify the bundle before we start preparing the process we're going to
spawn. If we fail to verify, we don't need to push anything to the
child_process "args".
Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
|
When Git verifies a bundle to see if it is safe for unbundling, it first
looks to see if the prerequisite commits are in the object store. This
is an easy way to "fail fast" but it is not a sufficient check for
updating refs that guarantee closure under reachability. There could
still be issues if those commits are not reachable from the repository's
references. The repository only has guarantees that its object store is
closed under reachability for the objects that are reachable from
references.
Thus, the code in verify_bundle() has previously had the additional
check that all prerequisite commits are reachable from repository
references. This is done via a revision walk from all references,
stopping only if all prerequisite commits are discovered or all commits
are walked. This uses a custom walk to verify_bundle().
This check is more strict than what Git applies to fetched pack-files.
In the fetch case, Git guarantees that the new references are closed
under reachability by walking from the new references until walking
commits that are reachable from repository refs. This is done through
the well-used check_connected() method.
To better align with the restrictions required by 'git fetch',
reimplement this check in verify_bundle() to use check_connected(). This
also simplifies the code significantly.
The previous change added a test that verified the behavior of 'git
bundle verify' and 'git bundle unbundle' in this case, and the error
messages looked like this:
error: Could not read <missing-commit>
fatal: Failed to traverse parents of commit <extant-commit>
However, by changing the revision walk slightly within check_connected()
and using its quiet mode, we can omit those messages. Instead, we get
only this message, tailored to describing the current state of the
repository:
error: some prerequisite commits exist in the object store,
but are not connected to the repository's history
(Line break added here for the commit message formatting, only.)
While this message does not include any object IDs, there is no
guarantee that those object IDs would help the user diagnose what is
going on, as they could be separated from the prerequisite commits by
some distance. At minimum, this situation describes the situation in a
more informative way than the previous error messages.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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When downloading a list of bundles in "all" mode, Git has no
understanding of the dependencies between the bundles. Git attempts to
unbundle the bundles in some order, but some may not pass the
verify_bundle() step because of missing prerequisites. This is passed as
error messages to the user, even when they eventually succeed in later
attempts after their dependent bundles are unbundled.
Add a new VERIFY_BUNDLE_QUIET flag to verify_bundle() that avoids the
error messages from the missing prerequisite commits. The method still
returns the number of missing prerequisit commits, allowing callers to
unbundle() to notice that the bundle failed to apply.
Use this flag in bundle-uri.c and test that the messages go away for
'git clone --bundle-uri' commands.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
|
The verify_bundle() method has a 'verbose' option, but we will want to
extend this method to have more granular control over its output. First,
replace this 'verbose' option with a new 'flags' option with a single
possible value: VERIFY_BUNDLE_VERBOSE.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
|
The verify_bundle() method checks two things for a bundle's
prerequisites:
1. Are these objects in the object store?
2. Are these objects reachable from our references?
In this second question, multiple uses of verify_bundle() in the same
process can report an invalid bundle even though it is correct. The
reason is due to not clearing all of the commit marks on the commits
previously walked.
The revision walk machinery was first introduced in-process by
fb9a54150d3 (git-bundle: avoid fork() in verify_bundle(), 2007-02-22).
This implementation used "-1" as the set of flags to clear. The next
meaningful change came in 2b064697a5b (revision traversal: retire
BOUNDARY_SHOW, 2007-03-05), which introduced the PREREQ_MARK flag
instead of a flag normally controlled by the revision-walk machinery.
In 86a0a408b90 (commit: factor out
clear_commit_marks_for_object_array, 2011-10-01), the loop over the
array of commits was replaced with a new
clear_commit_marks_for_object_array(), but simultaneously the "-1" value
was replaced with "ALL_REV_FLAGS", which stopped un-setting the
PREREQ_MARK flag. This means that if multiple commits were marked by the
PREREQ_MARK in a previous run of verify_bundle(), then this loop could
terminate early due to 'i' going to zero:
while (i && (commit = get_revision(&revs)))
if (commit->object.flags & PREREQ_MARK)
i--;
The flag clearing work was changed again in 63647391e6c (bundle: avoid
using the rev_info flag leak_pending, 2017-12-25), but that was only
cosmetic and did not change the behavior.
It may seem that it would be sufficient to add the PREREQ_MARK flag to
the clear_commit_marks() call in its current location. However, we
actually need to do it in the "cleanup:" step, since the first loop
checking "Are these objects in the object store?" might add the
PREREQ_MARK flag to some objects and then terminate without performing a
walk due to one missing object. By clearing the flags in all cases, we
avoid this issue when running verify_bundle() multiple times in the same
process.
Moving this loop to the cleanup step alone would cause a segfault when
running 'git bundle verify' outside of a repository, but this is because
of that error condition using "goto cleanup" when returning is perfectly
safe. Nothing has been initialized at that point, so we can return
immediately without causing any leaks.
This behavior is verified carefully by a test that will be added soon
when Git learns to download bundle lists in a 'git clone --bundle-uri'
command.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Plug the memory leaks from the trickiest API of all, the revision
walker.
* ab/plug-leak-in-revisions: (27 commits)
revisions API: add a TODO for diff_free(&revs->diffopt)
revisions API: have release_revisions() release "topo_walk_info"
revisions API: have release_revisions() release "date_mode"
revisions API: call diff_free(&revs->pruning) in revisions_release()
revisions API: release "reflog_info" in release revisions()
revisions API: clear "boundary_commits" in release_revisions()
revisions API: have release_revisions() release "prune_data"
revisions API: have release_revisions() release "grep_filter"
revisions API: have release_revisions() release "filter"
revisions API: have release_revisions() release "cmdline"
revisions API: have release_revisions() release "mailmap"
revisions API: have release_revisions() release "commits"
revisions API users: use release_revisions() for "prune_data" users
revisions API users: use release_revisions() with UNLEAK()
revisions API users: use release_revisions() in builtin/log.c
revisions API users: use release_revisions() in http-push.c
revisions API users: add "goto cleanup" for release_revisions()
stash: always have the owner of "stash_info" free it
revisions API users: use release_revisions() needing REV_INFO_INIT
revision.[ch]: document and move code declared around "init"
...
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Change the parse_bundle_header() function to be non-static, and rename
it to parse_bundle_header_fd(). The parse_bundle_header() function is
already public, and it's a thin wrapper around this function. This
will be used by code that wants to pass a fd to the bundle API.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use release_revisions() to various users of "struct rev_list" which
need to have their "struct rev_info" zero-initialized before we can
start using it.
For the bundle.c code see the early exit case added in
3bbbe467f29 (bundle verify: error out if called without an object
database, 2019-05-27).
For the relevant bisect.c code see 45b6370812c (bisect: libify
`check_good_are_ancestors_of_bad` and its dependents, 2020-02-17).
For the submodule.c code see the "goto" on "(!left || !right || !sub)"
added in 8e6df65015f (submodule: refactor show_submodule_summary with
helper function, 2016-08-31).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The previous change moved the 'filter' capability to the end of the 'git
bundle verify' output. Now, add the 'object-format' capability to the
output, when it exists.
This change makes 'git bundle verify' output the hash used in all cases,
even if the capability is not in the bundle. This means that v2 bundles
will always output that they use "sha1". This might look noisy to some
users, but it does simplify the implementation and the test strategy for
this feature.
Since 'verify' ends early when a prerequisite commit is missing, we need
to insert this hash message carefully into our expected test output
throughout t6020.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The 'filter' capability was added in 105c6f14a (bundle: parse filter
capability, 2022-03-09), but was added in a strange place in the 'git
bundle verify' output.
The tests for this show output like the following:
The bundle contains these 2 refs:
<COMMIT1> <REF1>
<COMMIT2> <REF2>
The bundle uses this filter: blob:none
The bundle records a complete history.
This looks very odd if we have a thin bundle that contains boundary
commits instead of a complete history:
The bundle contains these 2 refs:
<COMMIT1> <REF1>
<COMMIT2> <REF2>
The bundle uses this filter: blob:none
The bundle requires these 2 refs:
<COMMIT3>
<COMMIT4>
This separation between tip refs and boundary refs is unfortunate. Move
the filter capability output to the end of the output. Update the
documentation to match.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Bundle file format gets extended to allow a partial bundle,
filtered by similar criteria you would give when making a
partial/lazy clone.
* ds/partial-bundles:
clone: fail gracefully when cloning filtered bundle
bundle: unbundle promisor packs
bundle: create filtered bundles
rev-list: move --filter parsing into revision.c
bundle: parse filter capability
list-objects: handle NULL function pointers
MyFirstObjectWalk: update recommended usage
list-objects: consolidate traverse_commit_list[_filtered]
pack-bitmap: drop filter in prepare_bitmap_walk()
pack-objects: use rev.filter when possible
revision: put object filter into struct rev_info
list-objects-filter-options: create copy helper
index-pack: document and test the --promisor option
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In order to have a valid pack-file after unbundling a bundle that has
the 'filter' capability, we need to generate a .promisor file. The
bundle does not promise _where_ the objects can be found, but we can
expect that these bundles will be unbundled in repositories with
appropriate promisor remotes that can find those missing objects.
Use the 'git index-pack --promisor=<message>' option to create this
.promisor file. Add "from-bundle" as the message to help anyone diagnose
issues with these promisor packs.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A previous change allowed Git to parse bundles with the 'filter'
capability. Now, teach Git to create bundles with this option.
Some rearranging of code is required to get the option parsing in the
correct spot. There are now two reasons why we might need capabilities
(a new hash algorithm or an object filter) so that is pulled out into a
place where we can check both at the same time.
The --filter option is parsed as part of setup_revisions(), but it
expected the --objects flag, too. That flag is somewhat implied by 'git
bundle' because it creates a pack-file walking objects, but there is
also a walk that walks the revision range expecting only commits. Make
this parsing work by setting 'revs.tree_objects' and 'revs.blob_objects'
before the call to setup_revisions().
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The v3 bundle format has capabilities, allowing newer versions of Git to
create bundles with newer features. Older versions that do not
understand these new capabilities will fail with a helpful warning.
Create a new capability allowing Git to understand that the contained
pack-file is filtered according to some object filter. Typically, this
filter will be "blob:none" for a blobless partial clone.
This change teaches Git to parse this capability, place its value in the
bundle header, and demonstrate this understanding by adding a message to
'git bundle verify'.
Since we will use gently_parse_list_objects_filter() outside of
list-objects-filter-options.c, make it an external method and move its
API documentation to before its declaration.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If a caller to traverse_commit_list() specifies the options for the
--objects flag but does not specify a show_object function pointer, the
result is a segfault. This is currently visible by running 'git bundle
create --objects HEAD'.
We could fix this problem by supplying a no-op callback in
builtin/bundle.c, but that only solves the problem for one builtin,
leaving this segfault open for other callers.
Replace all callers of the show_commit and show_object function pointers
in list-objects.c to call helper functions show_commit() and
show_object() which check that the given context has non-NULL functions
before passing the necessary data. One extra benefit is that it reduces
duplication due to passing ctx->show_data to every caller.
Test that this segfault no longer occurs for 'git bundle'.
Co-authored-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the "nr" and "alloc" members of "struct string_list" to use
"size_t" instead of "nr". On some platforms the size of an "unsigned
int" will be smaller than a "size_t", e.g. a 32 bit unsigned v.s. 64
bit unsigned. As "struct string_list" is a generic API we use in a lot
of places this might cause overflows.
As one example: code in "refs.c" keeps track of the number of refs
with a "size_t", and auxiliary code in builtin/remote.c in
get_ref_states() appends those to a "struct string_list".
While we're at it split the "nr" and "alloc" in string-list.h across
two lines, which is the case for most such struct member
declarations (e.g. in "strbuf.h" and "strvec.h").
Changing e.g. "int i" to "size_t i" in run_and_feed_hook() isn't
strictly necessary, and there are a lot more cases where we'll use a
local "int", "unsigned int" etc. variable derived from the "nr" in the
"struct string_list". But in that case as well as
add_wrapped_shortlog_msg() in builtin/shortlog.c we need to adjust the
printf format referring to "nr" anyway, so let's also change the other
variables referring to it.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since the "flags" parameter was added in be042aff24c (Teach progress
eye-candy to fetch_refs_from_bundle(), 2011-09-18) there's never been
more than the one flag: BUNDLE_VERBOSE.
Let's have the only caller who cares about that pass "-v" itself
instead through new "extra_index_pack_args" parameter. The flexibility
of being able to pass arbitrary arguments to "unbundle" will be used
in a subsequent commit.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move away from the "struct ref_list" in bundle.c in favor of the
almost identical string-list.c API.
That API fits this use-case perfectly, but did not exist in its
current form when this code was added in 2e0afafebd (Add git-bundle:
move objects and references by archive, 2007-02-22), with hindsight we
could have used the path-list API, which later got renamed to
string-list. See 8fd2cb4069 (Extract helper bits from
c-merge-recursive work, 2006-07-25)
We need to change "name" to "string" and "oid" to "util" to make this
conversion, but other than that the APIs are pretty much identical for
what bundle.c made use of.
Let's also replace the memset(..,0,...) pattern with a more idiomatic
"INIT" macro, and finally add a *_release() function so to free the
allocated memory.
Before this the add_to_ref_list() would leak memory, now e.g. "bundle
list-heads" reports no memory leaks at all under valgrind.
In the bundle_header_init() function we're using a clever trick to
memcpy() what we'd get from the corresponding
BUNDLE_HEADER_INIT. There is a concurrent series to make use of that
pattern more generally, see [1].
1. https://lore.kernel.org/git/cover-0.5-00000000000-20210701T104855Z-avarab@gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In preparation for moving away from accessing the OID and name via the
"oid" and "name" slots in a subsequent commit, change the code that
accesses it to use named variables. This makes the subsequent change
smaller.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In order to create an incremental bundle, we need to pass many arguments
to let git-bundle ignore some already packed commits. It will be more
convenient to pass args via stdin. But the current implementation does
not allow us to do this.
This is because args are parsed twice when creating bundle. The first
time for parsing args is in `compute_and_write_prerequisites()` by
running `git-rev-list` command to write prerequisites in bundle file,
and stdin is consumed in this step if "--stdin" option is provided for
`git-bundle`. Later nothing can be read from stdin when running
`setup_revisions()` in `create_bundle()`.
The solution is to parse args once by removing the entire function
`compute_and_write_prerequisites()` and then calling function
`setup_revisions()`. In order to write prerequisites for bundle, will
call `prepare_revision_walk()` and `traverse_commit_list()`. But after
calling `prepare_revision_walk()`, the object array `revs.pending` is
left empty, and the following steps could not work properly with the
empty object array (`revs.pending`). Therefore, make a copy of `revs`
to `revs_copy` for later use right after calling `setup_revisions()`.
The copy of `revs_copy` is not a deep copy, it shares the same objects
with `revs`. The object array of `revs` has been cleared, but objects
themselves are still kept. Flags of objects may change after calling
`prepare_revision_walk()`, we can use these changed flags without
calling the `git rev-list` command and parsing its output like the
former implementation.
Also add testcases for git bundle in t6020, which read args from stdin.
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
"git status" has trouble showing where it came from by interpreting
reflog entries that recordcertain events, e.g. "checkout @{u}", and
gives a hard/fatal error. Even though it inherently is impossible
to give a correct answer because the reflog entries lose some
information (e.g. "@{u}" does not record what branch the user was
on hence which branch 'the upstream' needs to be computed, and even
if the record were available, the relationship between branches may
have changed), at least hide the error to allow "status" show its
output.
* jt/interpret-branch-name-fallback:
wt-status: tolerate dangling marks
refs: move dwim_ref() to header file
sha1-name: replace unsigned int with option struct
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When a user checks out the upstream branch of HEAD, the upstream branch
not being a local branch, and then runs "git status", like this:
git clone $URL client
cd client
git checkout @{u}
git status
no status is printed, but instead an error message:
fatal: HEAD does not point to a branch
(This error message when running "git branch" persists even after
checking out other things - it only stops after checking out a branch.)
This is because "git status" reads the reflog when determining the "HEAD
detached" message, and thus attempts to DWIM "@{u}", but that doesn't
work because HEAD no longer points to a branch.
Therefore, when calculating the status of a worktree, tolerate dangling
marks. This is done by adding an additional parameter to
dwim_ref() and repo_dwim_ref().
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
|
The final leg of SHA-256 transition.
* bc/sha-256-part-3: (39 commits)
t: remove test_oid_init in tests
docs: add documentation for extensions.objectFormat
ci: run tests with SHA-256
t: make SHA1 prerequisite depend on default hash
t: allow testing different hash algorithms via environment
t: add test_oid option to select hash algorithm
repository: enable SHA-256 support by default
setup: add support for reading extensions.objectformat
bundle: add new version for use with SHA-256
builtin/verify-pack: implement an --object-format option
http-fetch: set up git directory before parsing pack hashes
t0410: mark test with SHA1 prerequisite
t5308: make test work with SHA-256
t9700: make hash size independent
t9500: ensure that algorithm info is preserved in config
t9350: make hash size independent
t9301: make hash size independent
t9300: use $ZERO_OID instead of hard-coded object ID
t9300: abstract away SHA-1-specific constants
t8011: make hash size independent
...
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The "argc" and "argv" names made sense when the struct was argv_array,
but now they're just confusing. Let's rename them to "nr" (which we use
for counts elsewhere) and "v" (which is rather terse, but reads well
when combined with typical variable names like "args.v").
Note that we have to update all of the callers immediately. Playing
tricks with the preprocessor is hard here, because we wouldn't want to
rewrite unrelated tokens.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently we detect the hash algorithm in use by the length of the
object ID. This is inelegant and prevents us from using a different
hash algorithm that is also 256 bits in length.
Since we cannot extend the v2 format in a backward-compatible way, let's
add a v3 format, which is identical, except for the addition of
capabilities, which are prefixed by an at sign. We add "object-format"
as the only capability and reject unknown capabilities, since we do not
have a network connection and therefore cannot negotiate with the other
side.
For compatibility, default to the v2 format for SHA-1 and require v3
for SHA-256.
In t5510, always use format v3 so we can be sure we produce consistent
results across hash algorithms. Since head -n N lists the top N lines
instead of the Nth line, let's run our output through sed to normalize
it and compare it against a fixed value, which will make sure we get
exactly what we're expecting.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code which split an argv_array call across multiple lines, like:
argv_array_pushl(&args, "one argument",
"another argument", "and more",
NULL);
was recently mechanically renamed to use strvec, which results in
mis-matched indentation like:
strvec_pushl(&args, "one argument",
"another argument", "and more",
NULL);
Let's fix these up to align the arguments with the opening paren. I did
this manually by sifting through the results of:
git jump grep 'strvec_.*,$'
and liberally applying my editor's auto-format. Most of the changes are
of the form shown above, though I also normalized a few that had
originally used a single-tab indentation (rather than our usual style of
aligning with the open paren). I also rewrapped a couple of obvious
cases (e.g., where previously too-long lines became short enough to fit
on one), but I wasn't aggressive about it. In cases broken to three or
more lines, the grouping of arguments is sometimes meaningful, and it
wasn't worth my time or reviewer time to ponder each case individually.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We eventually want to drop the argv_array name and just use strvec
consistently. There's no particular reason we have to do it all at once,
or care about interactions between converted and unconverted bits.
Because of our preprocessor compat layer, the names are interchangeable
to the compiler (so even a definition and declaration using different
names is OK).
This patch converts remaining files from the first half of the alphabet,
to keep the diff to a manageable size.
The conversion was done purely mechanically with:
git ls-files '*.c' '*.h' |
xargs perl -i -pe '
s/ARGV_ARRAY/STRVEC/g;
s/argv_array/strvec/g;
'
and then selectively staging files with "git add '[abcdefghjkl]*'".
We'll deal with any indentation/style fallouts separately.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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This requires updating #include lines across the code-base, but that's
all fairly mechanical, and was done with:
git ls-files '*.c' '*.h' |
xargs perl -i -pe 's/argv-array.h/strvec.h/'
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Much like with the dumb HTTP transport, there isn't a way to explicitly
specify the hash algorithm when dealing with a bundle, so detect the
algorithm based on the length of the object IDs in the prerequisites and
ref advertisements.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Support the progress output options from pack-objects in git-bundle's
create subcommand. Most notably, this provides --quiet as requested on
the git mailing list per [1]
Reference: https://www.mail-archive.com/git@vger.kernel.org/msg182844.html <robbat2-20190806T191156-796782357Z@orbis-terrarum.net>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Switch a use of the constant 40 and a use of GIT_SHA1_HEXSZ to use
the_hash_algo instead.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The deal with bundles is: they really are thin packs, with very little
sugar on top. So we really need a repository (or more appropriately, an
object database) to work with, when asked to verify a bundle.
Let's error out with a useful error message if `git bundle verify` is
called without such an object database to work with.
Reported by Konstantin Ryabitsev.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's no need to pass a header struct to create_bundle(); it writes
the header information directly to a descriptor (and does not report
back details to the caller).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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More codepaths become aware of working with in-core repository
instance other than the default "the_repository".
* nd/the-index: (22 commits)
rebase-interactive.c: remove the_repository references
rerere.c: remove the_repository references
pack-*.c: remove the_repository references
pack-check.c: remove the_repository references
notes-cache.c: remove the_repository references
line-log.c: remove the_repository reference
diff-lib.c: remove the_repository references
delta-islands.c: remove the_repository references
cache-tree.c: remove the_repository references
bundle.c: remove the_repository references
branch.c: remove the_repository reference
bisect.c: remove the_repository reference
blame.c: remove implicit dependency the_repository
sequencer.c: remove implicit dependency on the_repository
sequencer.c: remove implicit dependency on the_index
transport.c: remove implicit dependency on the_index
notes-merge.c: remove implicit dependency the_repository
notes-merge.c: remove implicit dependency on the_index
list-objects.c: reduce the_repository references
list-objects-filter.c: remove implicit dependency on the_index
...
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When "git bundle" aborts due to an empty commit ranges
(i.e. resulting in an empty pack), it left a file descriptor to an
lockfile open, which resulted in leftover lockfile on Windows where
you cannot remove a file with an open file descriptor. This has
been corrected.
* jk/close-duped-fd-before-unlock-for-bundle:
bundle: dup() output descriptor closer to point-of-use
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When writing a bundle to a file, the bundle code actually creates
"your.bundle.lock" using our lockfile interface. We feed that output
descriptor to a child git-pack-objects via run-command, which has the
quirk that it closes the output descriptor in the parent.
To avoid confusing the lockfile code (which still thinks the descriptor
is valid), we dup() it, and operate on the duplicate.
However, this has a confusing side effect: after the dup() but before we
call pack-objects, we have _two_ descriptors open to the lockfile. If we
call die() during that time, the lockfile code will try to clean up the
partially-written file. It knows to close() the file before unlinking,
since on some platforms (i.e., Windows) the open file would block the
deletion. But it doesn't know about the duplicate descriptor. On
Windows, triggering an error at the right part of the code will result
in the cleanup failing and the lockfile being left in the filesystem.
We can solve this by moving the dup() much closer to start_command(),
shrinking the window in which we have the second descriptor open. It's
easy to place this in such a way that no die() is possible. We could
still die due to a signal in the exact wrong moment, but we already
tolerate races there (e.g., a signal could come before we manage to put
the file on the cleanup list in the first place).
As a bonus, this shields create_bundle() itself from the duplicate-fd
trick, and we can simplify its error handling (note that the lock
rollback now happens unconditionally, but that's OK; it's a noop if we
didn't open the lock in the first place).
The included test uses an empty bundle to cause a failure at the right
spot in the code, because that's easy to trigger (the other likely
errors are write() problems like ENOSPC). Note that it would already
pass on non-Windows systems (because they are happy to unlink an
already-open file).
Based-on-a-patch-by: Gaël Lhez <gael.lhez@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Tested-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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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Various codepaths in the core-ish part learn to work on an
arbitrary in-core index structure, not necessarily the default
instance "the_index".
* nd/the-index: (23 commits)
revision.c: reduce implicit dependency the_repository
revision.c: remove implicit dependency on the_index
ws.c: remove implicit dependency on the_index
tree-diff.c: remove implicit dependency on the_index
submodule.c: remove implicit dependency on the_index
line-range.c: remove implicit dependency on the_index
userdiff.c: remove implicit dependency on the_index
rerere.c: remove implicit dependency on the_index
sha1-file.c: remove implicit dependency on the_index
patch-ids.c: remove implicit dependency on the_index
merge.c: remove implicit dependency on the_index
merge-blobs.c: remove implicit dependency on the_index
ll-merge.c: remove implicit dependency on the_index
diff-lib.c: remove implicit dependency on the_index
read-cache.c: remove implicit dependency on the_index
diff.c: remove implicit dependency on the_index
grep.c: remove implicit dependency on the_index
diff.c: remove the_index dependency in textconv() functions
blame.c: rename "repo" argument to "r"
combine-diff.c: remove implicit dependency on the_index
...
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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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This is the flip side of the previous two patches: checking
for a non-zero oidcmp() can be more strictly expressed as
inequality. Like those patches, we write "!= 0" in the
coccinelle transformation, which covers by isomorphism the
more common:
if (oidcmp(E1, E2))
As with the previous two patches, this patch can be achieved
almost entirely by running "make coccicheck"; the only
differences are manual line-wrap fixes to match the original
code.
There is one thing to note for anybody replicating this,
though: coccinelle 1.0.4 seems to miss the case in
builtin/tag.c, even though it's basically the same as all
the others. Running with 1.0.7 does catch this, so
presumably it's just a coccinelle bug that was fixed in the
interim.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a repository argument to allow callers of lookup_commit_reference
to be more specific about which repository to handle. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.
As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a repository argument to allow callers of
lookup_commit_reference_gently to be more specific about which
repository to handle. This is a small mechanical change; it doesn't
change the implementation to handle repositories other than
the_repository yet.
As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a repository argument to allow the callers of parse_object
to be more specific about which repository to act on. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.
As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* sb/object-store-grafts:
commit: allow lookup_commit_graft to handle arbitrary repositories
commit: allow prepare_commit_graft to handle arbitrary repositories
shallow: migrate shallow information into the object parser
path.c: migrate global git_path_* to take a repository argument
cache: convert get_graft_file to handle arbitrary repositories
commit: convert read_graft_file to handle arbitrary repositories
commit: convert register_commit_graft to handle arbitrary repositories
commit: convert commit_graft_pos() to handle arbitrary repositories
shallow: add repository argument to is_repository_shallow
shallow: add repository argument to check_shallow_file_for_update
shallow: add repository argument to register_shallow
shallow: add repository argument to set_alternate_shallow_file
commit: add repository argument to lookup_commit_graft
commit: add repository argument to prepare_commit_graft
commit: add repository argument to read_graft_file
commit: add repository argument to register_commit_graft
commit: add repository argument to commit_graft_pos
object: move grafts to object parser
object-store: move object access functions to object-store.h
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Code clean-up to adjust to a more recent lockfile API convention that
allows lockfile instances kept on the stack.
* ma/lockfile-cleanup:
lock_file: move static locks into functions
lock_file: make function-local locks non-static
refs.c: do not die if locking fails in `delete_pseudoref()`
refs.c: do not die if locking fails in `write_pseudoref()`
t/helper/test-write-cache: clean up lock-handling
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This should make these functions easier to find and cache.h less
overwhelming to read.
In particular, this moves:
- read_object_file
- oid_object_info
- write_object_file
As a result, most of the codebase needs to #include object-store.h.
In this patch the #include is only added to files that would fail to
compile otherwise. It would be better to #include wherever
identifiers from the header are used. That can happen later
when we have better tooling for it.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Placing `struct lock_file`s on the stack used to be a bad idea, because
the temp- and lockfile-machinery would keep a pointer into the struct.
But after 076aa2cbd (tempfile: auto-allocate tempfiles on heap,
2017-09-05), we can safely have lockfiles on the stack. (This applies
even if a user returns early, leaving a locked lock behind.)
These `struct lock_file`s are local to their respective functions and we
can drop their staticness.
For good measure, I have inspected these sites and come to believe that
they always release the lock, with the possible exception of bailing out
using `die()` or `exit()` or by returning from a `cmd_foo()`.
As pointed out by Jeff King, it would be bad if someone held on to a
`struct lock_file *` for some reason. After some grepping, I agree with
his findings: no-one appears to be doing that.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Convert read_sha1_file to take a pointer to struct object_id and rename
it read_object_file. Do the same for read_sha1_file_extended.
Convert one use in grep.c to use the new function without any other code
change, since the pointer being passed is a void pointer that is already
initialized with a pointer to struct object_id. Update the declaration
and definitions of the modified functions, and apply the following
semantic patch to convert the remaining callers:
@@
expression E1, E2, E3;
@@
- read_sha1_file(E1.hash, E2, E3)
+ read_object_file(&E1, E2, E3)
@@
expression E1, E2, E3;
@@
- read_sha1_file(E1->hash, E2, E3)
+ read_object_file(E1, E2, E3)
@@
expression E1, E2, E3, E4;
@@
- read_sha1_file_extended(E1.hash, E2, E3, E4)
+ read_object_file_extended(&E1, E2, E3, E4)
@@
expression E1, E2, E3, E4;
@@
- read_sha1_file_extended(E1->hash, E2, E3, E4)
+ read_object_file_extended(E1, E2, E3, E4)
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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API clean-up around revision traversal.
* rs/lose-leak-pending:
commit: remove unused function clear_commit_marks_for_object_array()
revision: remove the unused flag leak_pending
checkout: avoid using the rev_info flag leak_pending
bundle: avoid using the rev_info flag leak_pending
bisect: avoid using the rev_info flag leak_pending
object: add clear_commit_marks_all()
ref-filter: use clear_commit_marks_many() in do_merge_filter()
commit: use clear_commit_marks_many() in remove_redundant()
commit: avoid allocation in clear_commit_marks_many()
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The leak_pending flag is so awkward to use that multiple comments had to
be added around each occurrence. We use it for remembering the
prerequisites for the bundle. That is easy, though: We have the
ref_list named "prerequisites" in the header for just that purpose.
Use this original list of prerequisites to check if all of them are
present and to clear their commit marks afterward. The two new loops
are intentionally kept similar to the first one in the function.
Calling parse_object() a second time is expected be quick and successful
in each case -- any errors should have been handled in the first round.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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All of the callers of these functions just pass the hash member of a
struct object_id, so convert them to use a pointer to struct object_id
directly. Insert a check for NULL in expand_ref on a temporary basis;
this check can be removed when resolve_ref_unsafe is converted as well.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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All but two of the call sites already have parameters using the hash
parameter of struct object_id, so convert them to take a pointer to the
struct directly. Also convert refs_read_refs_full, the underlying
implementation.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Setting `leak_pending = 1` tells `prepare_revision_walk()` not to
release the `pending` array, and makes that the caller's responsibility.
See 4a43d374f (revision: add leak_pending flag, 2011-10-01) and
353f5657a (bisect: use leak_pending flag, 2011-10-01).
Commit 1da1e07c8 (clean up name allocation in prepare_revision_walk,
2014-10-15) fixed a memory leak in `prepare_revision_walk()` by
switching from `free()` to `object_array_clear()`. However, where we use
the `leak_pending`-mechanism, we're still only calling `free()`.
Use `object_array_clear()` instead. Copy some helpful comments from
353f5657a to the other callers that we update to clarify the memory
responsibilities, and to highlight that the commits are not affected
when we clear the array -- it is indeed correct to both tidy up the
commit flags and clear the object array.
Document `leak_pending` in revision.h to help future users get this
right.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Conversion from uchar[20] to struct object_id continues.
* bc/object-id: (53 commits)
object: convert parse_object* to take struct object_id
tree: convert parse_tree_indirect to struct object_id
sequencer: convert do_recursive_merge to struct object_id
diff-lib: convert do_diff_cache to struct object_id
builtin/ls-tree: convert to struct object_id
merge: convert checkout_fast_forward to struct object_id
sequencer: convert fast_forward_to to struct object_id
builtin/ls-files: convert overlay_tree_on_cache to object_id
builtin/read-tree: convert to struct object_id
sha1_name: convert internals of peel_onion to object_id
upload-pack: convert remaining parse_object callers to object_id
revision: convert remaining parse_object callers to object_id
revision: rename add_pending_sha1 to add_pending_oid
http-push: convert process_ls_object and descendants to object_id
refs/files-backend: convert many internals to struct object_id
refs: convert struct ref_update to use struct object_id
ref-filter: convert some static functions to struct object_id
Convert struct ref_array_item to struct object_id
Convert the verify_pack callback to struct object_id
Convert lookup_tag to struct object_id
...
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Make parse_object, parse_object_or_die, and parse_object_buffer take a
pointer to struct object_id. Remove the temporary variables inserted
earlier, since they are no longer necessary. Transform all of the
callers using the following semantic patch:
@@
expression E1;
@@
- parse_object(E1.hash)
+ parse_object(&E1)
@@
expression E1;
@@
- parse_object(E1->hash)
+ parse_object(E1)
@@
expression E1, E2;
@@
- parse_object_or_die(E1.hash, E2)
+ parse_object_or_die(&E1, E2)
@@
expression E1, E2;
@@
- parse_object_or_die(E1->hash, E2)
+ parse_object_or_die(E1, E2)
@@
expression E1, E2, E3, E4, E5;
@@
- parse_object_buffer(E1.hash, E2, E3, E4, E5)
+ parse_object_buffer(&E1, E2, E3, E4, E5)
@@
expression E1, E2, E3, E4, E5;
@@
- parse_object_buffer(E1->hash, E2, E3, E4, E5)
+ parse_object_buffer(E1, E2, E3, E4, E5)
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Convert lookup_commit, lookup_commit_or_die,
lookup_commit_reference, and lookup_commit_reference_gently to take
struct object_id arguments.
Introduce a temporary in parse_object buffer in order to convert this
function. This is required since in order to convert parse_object and
parse_object_buffer, lookup_commit_reference_gently and
lookup_commit_or_die would need to be converted. Not introducing a
temporary would therefore require that lookup_commit_or_die take a
struct object_id *, but lookup_commit would take unsigned char *,
leaving a confusing and hard-to-use interface.
parse_object_buffer will lose this temporary in a later patch.
This commit was created with manual changes to commit.c, commit.h, and
object.c, plus the following semantic patch:
@@
expression E1, E2;
@@
- lookup_commit_reference_gently(E1.hash, E2)
+ lookup_commit_reference_gently(&E1, E2)
@@
expression E1, E2;
@@
- lookup_commit_reference_gently(E1->hash, E2)
+ lookup_commit_reference_gently(E1, E2)
@@
expression E1;
@@
- lookup_commit_reference(E1.hash)
+ lookup_commit_reference(&E1)
@@
expression E1;
@@
- lookup_commit_reference(E1->hash)
+ lookup_commit_reference(E1)
@@
expression E1;
@@
- lookup_commit(E1.hash)
+ lookup_commit(&E1)
@@
expression E1;
@@
- lookup_commit(E1->hash)
+ lookup_commit(E1)
@@
expression E1, E2;
@@
- lookup_commit_or_die(E1.hash, E2)
+ lookup_commit_or_die(&E1, E2)
@@
expression E1, E2;
@@
- lookup_commit_or_die(E1->hash, E2)
+ lookup_commit_or_die(E1, E2)
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Convert the bundle code, plus the sole external user of struct
ref_list_entry, to use struct object_id. Include cache.h from within
bundle.h to provide the definition. Convert some of the hash parsing
code to use parse_oid_hex to avoid needing to hard-code constant values.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Git's source code assumes that unsigned long is at least as precise as
time_t. Which is incorrect, and causes a lot of problems, in particular
where unsigned long is only 32-bit (notably on Windows, even in 64-bit
versions).
So let's just use a more appropriate data type instead. In preparation
for this, we introduce the new `timestamp_t` data type.
By necessity, this is a very, very large patch, as it has to replace all
timestamps' data type in one go.
As we will use a data type that is not necessarily identical to `time_t`,
we need to be very careful to use `time_t` whenever we interact with the
system functions, and `timestamp_t` everywhere else.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Currently, Git's source code represents all timestamps as `unsigned
long`. In preparation for using a more appropriate data type, let's
introduce a symbol `parse_timestamp` (currently being defined to
`strtoul`) where appropriate, so that we can later easily switch to,
say, use `strtoull()` instead.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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In successful operation `write_pack_data` will close the `bundle_fd`,
but when we exit early, we need to take care of the file descriptor
as well as the lock file ourselves. The lock file may be deleted at the
end of running the program, but we are in library code, so we should
not rely on that.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Convert all instances of get_object_hash to use an appropriate reference
to the hash member of the oid member of struct object. This provides no
functional change, as it is essentially a macro substitution.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
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struct object is one of the major data structures dealing with object
IDs. Convert it to use struct object_id instead of an unsigned char
array. Convert get_object_hash to refer to the new member as well.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
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Convert most instances where the sha1 member of struct object is
dereferenced to use get_object_hash. Most instances that are passed to
functions that have versions taking struct object_id, such as
get_sha1_hex/get_oid_hex, or instances that can be trivially converted
to use struct object_id instead, are not converted.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
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write_pack_data() passes bundle_fd to start_command() to be used as
the stdout of pack-objects. But start_command() closes its stdout if
it is > 1. This is a problem if bundle_fd is the fd of a lock_file,
because commit_lock_file() will also try to close the fd.
So the old code suppressed commit_lock_file()'s usual behavior of
closing the file descriptor by setting the lock_file object's fd field
to -1.
But this is not really kosher. Code here shouldn't be mutating fields
within the lock_file object.
Instead, duplicate the file descriptor before passing it to
write_pack_data(). Then that function can close its copy without
closing the copy held in the lock_file object.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There was one continue statement without an accompanying `free(ref)`.
Instead of adding that, replace all the free&&continue with a goto
just after writing the refs, where we'd do the free anyway and then
reloop.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The bundle_create() function has a number of logical steps:
process the input, write the refs, and write the packfile.
Recent commits split the first and third into separate
sub-functions. It's worth splitting the middle step out,
too, if only because it makes the progression of the steps
more obvious.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The new helper compute_and_write_prerequistes() is ugly, but it
cannot be avoided. Ideally we should avoid a function that computes
and does I/O at the same time, but the prerequisites lines in the
output needs the human readable title only to help the recipient of
the bundle. The code copies them straight from the rev-list output
and immediately discards as no other internal computation needs that
information.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
The create_bundle() function, while it does one single logical
thing, takes a rather large implementation to do so.
Let's start separating what it does into smaller steps to make it
easier to see what is going on. This is a first step to separate
out the actual pack-data generation, after the earlier part of the
function figures out which part of the history to place in the
bundle.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
Call child_process_init() instead of zeroing the memory of variables of
type struct child_process by hand before use because the former is both
clearer and shorter.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
resolve_ref_unsafe takes a boolean argument for reading (a nonexistent ref
resolves successfully for writing but not for reading). Change this to be
a flags field instead, and pass the new constant RESOLVE_REF_READING when
we want this behaviour.
While at it, swap two of the arguments in the function to put output
arguments at the end. As a nice side effect, this ensures that we can
catch callers that were unaware of the new API so they can be audited.
Give the wrapper functions resolve_refdup and read_ref_full the same
treatment for consistency.
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
|
* rs/plug-leak-in-bundle:
bundle: plug minor memory leak in is_tag_in_date_range()
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Free the buffer returned by read_sha1_file() even if no valid tagger
line is found.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
Move the interface declaration for the functions in lockfile.c from
cache.h to a new file, lockfile.h. Add #includes where necessary (and
remove some redundant includes of cache.h by files that already
include builtin.h).
Move the documentation of the lock_file state diagram from lockfile.c
to the new header file.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* lf/bundle-exclusion:
bundle: fix exclusion of annotated tags
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Code clean-up.
* rs/child-process-init:
run-command: inline prepare_run_command_v_opt()
run-command: call run_command_v_opt_cd_env() instead of duplicating it
run-command: introduce child_process_init()
run-command: introduce CHILD_PROCESS_INIT
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"git bundle create" with date-range specification were meant to
exclude tags outside the range
* lf/bundle-exclusion:
bundle: fix exclusion of annotated tags
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Most struct child_process variables are cleared using memset first after
declaration. Provide a macro, CHILD_PROCESS_INIT, that can be used to
initialize them statically instead. That's shorter, doesn't require a
function call and is slightly more readable (especially given that we
already have STRBUF_INIT, ARGV_ARRAY_INIT etc.).
Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In commit c9a42c4 (bundle: allow rev-list options to exclude annotated
tags, 2009-01-02), support for excluding annotated tags outside the
specified date range was added. However, the wrong order of parameters
was chosen when calling memchr().
Fix this by swapping the character to search for with the maximum length
parameter. Also cover this behavior with an additional test.
Signed-off-by: Lukas Fleischer <git@cryptocrack.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use the existing argv_array member instead of providing our own. This
way the argv_array is cleared after use automatically for us; it was
leaking before.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
Attempts to show where a single-strand-of-pearls break in "git log"
output.
* nd/log-show-linear-break:
log: add --show-linear-break to help see non-linear history
object.h: centralize object flag allocation
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|
While the field "flags" is mainly used by the revision walker, it is
also used in many other places. Centralize the whole flag allocation to
one place for a better overview (and easier to move flags if we have
too).
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* sh/use-hashcpy:
Use hashcpy() when copying object names
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We invented hashcpy() to keep the abstraction of "object name"
behind it. Use it instead of calling memcpy() with hard-coded
20-byte length when moving object names between pieces of memory.
Leave ppc/sha1.c as-is, because the function is about the SHA-1 hash
algorithm whose output is and will always be 20 bytes.
Helped-by: Michael Haggerty <mhagger@alum.mit.edu>
Helped-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Sun He <sunheehnus@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
Signed-off-by: Dmitry S. Dolzhenko <dmitrys.dolzhenko@yandex.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
|
Instead of hand-crafted arrays to manage command line arguments
we create internally, use argv-array helpers.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
Previously, the memory management of the object_array_entry::name
field was inconsistent and undocumented. object_array_entries are
ultimately created by a single function, add_object_array_with_mode(),
which has an argument "const char *name". This function used to
simply set the name field to reference the string pointed to by the
name parameter, and nobody on the object_array side ever freed the
memory. Thus, it assumed that the memory for the name field would be
managed by the caller, and that the lifetime of that string would be
at least as long as the lifetime of the object_array_entry. But
callers were inconsistent:
* Some passed pointers to constant strings or argv entries, which was
OK.
* Some passed pointers to newly-allocated memory, but didn't arrange
for the memory ever to be freed.
* Some passed the return value of sha1_to_hex(), which is a pointer to
a statically-allocated buffer that can be overwritten at any time.
* Some passed pointers to refnames that they received from a
for_each_ref()-type iteration, but the lifetimes of such refnames is
not guaranteed by the refs API.
Bring consistency to this mess by changing object_array to make its
own copy for the object_array_entry::name field and free this memory
when an object_array_entry is deleted from the array.
Many callers were passing the empty string as the name parameter, so
as a performance optimization, treat the empty string specially.
Instead of making a copy, store a pointer to a statically-allocated
empty string to object_array_entry::name. When deleting such an
entry, skip the free().
Change the callers that were already passing copies to
add_object_array_with_mode() to either skip the copy, or (if the
memory needed to be allocated anyway) freeing the memory itself.
A part of this commit effectively reverts
70d26c6e76 read_revisions_from_stdin: make copies for handle_revision_arg
because the copying introduced by that commit (which is still
necessary) is now done at a deeper level.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While explicitly stating that the commit message in a prerequisite
line is optional, we required all lines with 40 or more characters
to contain a space after the object name, bailing out if a line
consisted of an object name only. This was to allow bundling a
history to a commit without an message, but the code forgot that it
already called rtrim() to remove that whitespace.
As a workaround, only check for SP when the line has more than 40
characters.
Signed-off-by: Lukas Fleischer <git@cryptocrack.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/fully-peeled-packed-ref:
pack-refs: add fully-peeled trait
pack-refs: write peeled entry for non-tags
use parse_object_or_die instead of die("bad object")
avoid segfaults on parse_object failure
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Many call-sites of parse_object assume that they will get a
non-NULL return value; this is not the case if we encounter
an error while parsing the object.
This patch adds a wrapper function around parse_object that
handles dying automatically, and uses it anywhere we
immediately try to access the return value as a non-NULL
pointer (i.e., anywhere that we would currently segfault).
This wrapper may also be useful in other places. The most
obvious one is code like:
o = parse_object(sha1);
if (!o)
die(...);
However, these should not be mechanically converted to
parse_object_or_die, as the die message is sometimes
customized. Later patches can address these sites on a
case-by-case basis.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These slightly improve the reading flow by making it obvious that a list
follows.
Also, make the wording of both headings consistent by changing "contains
%d ref(s)" to "contains this ref"/"contains these %d refs".
Signed-off-by: Lukas Fleischer <git@cryptocrack.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A more informative message for "complete" bundles was added in commit
8c3710fd3011 (tweak "bundle verify" of a complete history, 2012-06-04).
However, the prerequisites ref list is currently read *after* we
check if it equals zero, which means we never actually use the
number of prerequisite refs to decide when to print the newly
introduced message. The code incorrectly uses the number of
references recorded in the bundle instead.
Signed-off-by: Lukas Fleischer <git@cryptocrack.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A bundle that records a complete history without prerequiste is a
useful way to sneakernet the sources of your configuration files
under your home directory, etc. E.g.
$ GIT_DIR=/srv/git/homesrc.git git bundle create x.bndl HEAD master
Running "git bundle verify" on such a "complete" bundle, however,
gives somewhat a funny output.
$ git bundle verify x.bndl
The bundle contains 2 refs
b2611f37ebc7ed6435a72d77fbc5f8b48a7d7146 HEAD
b2611f37ebc7ed6435a72d77fbc5f8b48a7d7146 refs/heads/master
The bundle requires these 0 refs
x.bndl is okay
Reword "requires these 0 refs" to say "The bundle records a complete
history" instead.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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More message strings marked for i18n.
By Nguyễn Thái Ngọc Duy (10) and Jonathan Nieder (1)
* nd/i18n:
help: replace underlining "help -a" headers using hyphens with a blank line
i18n: bundle: mark strings for translation
i18n: index-pack: mark strings for translation
i18n: apply: update say_patch_name to give translators complete sentence
i18n: apply: mark strings for translation
i18n: remote: mark strings for translation
i18n: make warn_dangling_symref() automatically append \n
i18n: help: mark strings for translation
i18n: mark relative dates for translation
strbuf: convenience format functions with \n automatically appended
Makefile: feed all header files to xgettext
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After running rev-list --boundary to retrieve the list of boundary
commits, "git bundle create" runs its own revision walk. If in this
stage git encounters an unfamiliar option, it writes a message with an
unbalanced quotation mark:
error: unrecognized argument: --foo'
Drop the stray quote to match the "unrecognized argument: %s" message
used elsewhere and save translators some work.
This is mostly a futureproofing measure: for now, the "rev-list
--boundary" command catches most strange arguments on its own and the
above message is not seen unless you try something esoteric like "git
bundle create test.bundle --header HEAD".
Reported-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
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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"git bundle" did not record boundary commits correctly when there
are many of them.
By Thomas Rast
* tr/maint-bundle-boundary:
bundle: keep around names passed to add_pending_object()
t5510: ensure we stay in the toplevel test dir
t5510: refactor bundle->pack conversion
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By Thomas Rast
* tr/maint-bundle-boundary:
bundle: keep around names passed to add_pending_object()
t5510: ensure we stay in the toplevel test dir
t5510: refactor bundle->pack conversion
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* tr/maint-bundle-long-subject:
t5704: match tests to modern style
strbuf: improve strbuf_get*line documentation
bundle: use a strbuf to scan the log for boundary commits
bundle: put strbuf_readline_fd in strbuf.c with adjustments
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The 'name' field passed to add_pending_object() is used to later
deduplicate in object_array_remove_duplicates().
git-bundle had a bug in this area since 18449ab (git-bundle: avoid
packing objects which are in the prerequisites, 2007-03-08): it passed
the name of each boundary object in a static buffer. In other words,
all that object_array_remove_duplicates() saw was the name of the
*last* added boundary object.
The recent switch to a strbuf in bc2fed4 (bundle: use a strbuf to scan
the log for boundary commits, 2012-02-22) made this slightly worse: we
now free the buffer at the end, so it is not even guaranteed that it
still points into addressable memory by the time object_array_remove_
duplicates looks at it. On the plus side however, it was now
detectable by valgrind.
The fix is easy: pass a copy of the string to add_pending_object.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* tr/maint-bundle-long-subject:
t5704: match tests to modern style
strbuf: improve strbuf_get*line documentation
bundle: use a strbuf to scan the log for boundary commits
bundle: put strbuf_readline_fd in strbuf.c with adjustments
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The first part of the bundle header contains the boundary commits, and
could be approximated by
# v2 git bundle
$(git rev-list --pretty=oneline --boundary <ARGS> | grep ^-)
git-bundle actually spawns exactly this rev-list invocation, and does
the grepping internally.
There was a subtle bug in the latter step: it used fgets() with a
1024-byte buffer. If the user has sufficiently long subjects (e.g.,
by not adhering to the git oneline-subject convention in the first
place), the 'oneline' format can easily overflow the buffer. fgets()
then returns the rest of the line in the next call(s). If one of
these remaining parts started with '-', git-bundle would mistakenly
insert it into the bundle thinking it was a boundary commit.
Fix it by using strbuf_getwholeline() instead, which handles arbitrary
line lengths correctly.
Note that on the receiving side in parse_bundle_header() we were
already using strbuf_getwholeline_fd(), so that part is safe.
Reported-by: Jannis Pohlmann <jannis.pohlmann@codethink.co.uk>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The comment even said that it should eventually go there. While at
it, match the calling convention and name of the function to the
strbuf_get*line family. So it now is strbuf_getwholeline_fd.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
docs: describe behavior of relative submodule URLs
fix hang in git fetch if pointed at a 0 length bundle
Documentation: read-tree --prefix works with existing subtrees
Add MYMETA.json to perl/.gitignore
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git-repo if interupted at the exact wrong time will generate zero
length bundles- literal empty files. git-repo is wrong here, but
git fetch shouldn't effectively spin loop if pointed at a zero
length bundle.
Signed-off-by: Brian Harring <ferringb@chromium.org>
Helped-by: Johannes Sixt
Helped-by: Nguyen Thai Ngoc Duy
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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resolve_ref() may return a pointer to a static buffer, which is not
safe for long-term use because if another resolve_ref() call happens,
the buffer may be changed. Many call sites though do not care about
this buffer. They simply check if the return value is NULL or not.
Convert all these call sites to new wrappers to reduce resolve_ref()
calls from 57 to 34. If we change resolve_ref() prototype later on
to avoid passing static buffer out, this helps reduce changes.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/unseekable-bundle:
bundle: add parse_bundle_header() helper function
bundle: allowing to read from an unseekable fd
Conflicts:
transport.c
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* rs/pending:
commit: factor out clear_commit_marks_for_object_array
checkout: use leak_pending flag
bundle: use leak_pending flag
bisect: use leak_pending flag
revision: add leak_pending flag
checkout: use add_pending_{object,sha1} in orphan check
revision: factor out add_pending_sha1
checkout: check for "Previous HEAD" notice in t2020
Conflicts:
builtin/checkout.c
revision.c
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Move most of the code from read_bundle_header() to parse_bundle_header()
that takes a file descriptor that is already opened for reading, and make
the former responsible only for opening the file and noticing errors.
As a logical consequence of this, is_bundle() helper function can be
implemented as a non-complaining variant of read_bundle_header() that
does not return an open file descriptor, and can be used to tighten
the check used to decide the use of bundle transport in transport_get()
function.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We wished that "git bundle" to eventually learn to read from a network
socket which is not seekable. The current code opens with fopen(), reads
the file halfway and run ftell(), and reopens the same file with open()
and seeks, to skip the header.
This patch by itself does not reach that goal yet, but I think it is a
right step in that direction.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Factor out the code to clear the commit marks for a whole struct
object_array from builtin/checkout.c into its own exported function
clear_commit_marks_for_object_array and use it in bisect and bundle
as well. It handles tags and commits and ignores objects of any
other type.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Instead of creating a copy of the list of pending objects, copy the
struct object_array that points to it, turn on leak_pending, and thus
cause prepare_revision_walk to leave it to us. And free it once
we're done.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With the usual "git" transport, a large-ish transfer with "git fetch" and
"git pull" give progress eye-candy to avoid boring users. However, not
when they are reading from a bundle. I.e.
$ git pull ../git-bundle.bndl master
This teaches bundle.c:unbundle() to give "-v" option to index-pack and
tell it to give progress bar when transport decides it is necessary.
The operation in the other direction, "git bundle create", could also
learn to honor --quiet but that is a separate issue.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git-bundle first appeared in 2e0afafe ("Add git-bundle") in Feb 2007,
and first shipped in Git 1.5.1.
However, OFS_DELTA is an even earlier invention, coming about in
eb32d236 ("introduce delta objects with offset to base") in Sep 2006,
and first shipped in Git 1.4.4.5.
OFS_DELTA is smaller, about 3.2%-5% smaller, and is typically faster
to access than REF_DELTA because the exact location of the delta base
is available after parsing the object header. Since all bundle aware
versions of Git are also OFS_DELTA aware, just make it the default.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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bundle command silently died with no sign of failure if it
could not create the bundle file. (Eg.: its path resovles to a directory,
or the parent dir is sticky while file already exists and is owned
by someone else.)
Signed-off-by: Csaba Henk <csaba@gluster.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/log-stdin:
Add trivial tests for --stdin option to log family
Make --stdin option to "log" family read also pathspecs
setup_revisions(): do not call get_pathspec() too early
Teach --stdin option to "log" family
read_revision_from_stdin(): use strbuf
Conflicts:
revision.c
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Currently the --all-progress flag is used to use force progress display
during the writing object phase even if output goes to stdout which is
primarily the case during a push operation. This has the unfortunate
side effect of forcing progress display even if stderr is not a
terminal.
Let's introduce the --all-progress-implied argument which has the same
intent except for actually forcing the activation of any progress
display. With this, progress display will be automatically inhibited
whenever stderr is not a terminal, or full progress display will be
included otherwise. This should let people use 'git push' within a cron
job without filling their logs with useless percentage displays.
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move the logic to read revs from standard input that rev-list knows about
from it to revision machinery, so that all the users of setup_revisions()
can feed the list of revs from the standard input when "--stdin" is used
on the command line.
Allow some users of the revision machinery that want different semantics
from the "--stdin" option to disable it by setting an option in the
rev_info structure.
This also cleans up the kludge made to bundle.c via cut and paste.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There were several unchecked use of fdopen(); replace them with xfdopen()
that checks and dies.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is convention that argv should be terminated with NULL, even if
argc is used to specify the size of argv. setup_revisions() requires
this and may segfault otherwise.
This patch makes sure that all argv (that I can find) is NULL terminated.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* js/maint-all-implies-HEAD:
bundle: allow the same ref to be given more than once
revision walker: include a detached HEAD in --all
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"git bundle create x master master" used to create a bundle that lists
the same branch (master) twice. Cloning from such a bundle resulted in
a needless warning "warning: Duplicated ref: refs/remotes/origin/master".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With options such as "--all --since=2.weeks.ago", annotated tags used to
be included, when they should have been excluded. The reason is that we
heavily abuse the revision walker to determine what needs to be included
or excluded. And the revision walker does not show tags at all (and
therefore never marks tags as uninteresting).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These were found using gcc 4.3.2-1ubuntu11 with the warning:
warning: format not a string literal and no format arguments
Incorporated suggestions from Brandon Casey <casey@nrlssc.navy.mil>.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This changes the "die_on_error" boolean parameter to a mere "flags", and
changes the existing callers of hold_lock_file_for_update/append()
functions to pass LOCK_DIE_ON_ERROR.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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This patch allows the caller to feed the revision parameters to git-bundle
from its standard input. This way, a script do not have to worry about
limitation of the length of command line.
Documentation/git-bundle.txt says that git-bundle takes arguments acceptable
to git-rev-list. Obviously some arguments that git-rev-list handles don't
make sense for git-bundle (e.g. --bisect) but --stdin is pretty reasonable.
Signed-off-by: Adam Brewster <adambrewster@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Callers of start_command() can set the members .in and .out of struct
child_process to a value > 0 to specify that this descriptor is used as
the stdin or stdout of the child process.
Previously, if start_command() was successful, this descriptor was closed
upon return. Here we now make sure that the descriptor is also closed in
case of failures. All callers are updated not to close the file descriptor
themselves after start_command() was called.
Note that earlier run_gpg_verify() of git-verify-tag set .out = 1, which
worked because start_command() treated this as a special case, but now
this is incorrect because it closes the descriptor. The intent here is to
inherit stdout to the child, which is achieved by .out = 0.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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By setting .in, .out, or .err members of struct child_process to -1, the
callers of start_command() can request that a pipe is allocated that talks
to the child process and one end is returned by replacing -1 with the
file descriptor.
Previously, a flag was set (for .in and .out, but not .err) to signal
finish_command() to close the pipe end that start_command() had handed out,
so it was optional for callers to close the pipe, and many already do so.
Now we make it mandatory to close the pipe.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A failure in prepare_revision_walk can be caused by
a not parseable object.
Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove remaining double close(2)'s. i.e. close() before
commit_locked_index() or commit_lock_file().
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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I noticed some unchecked writes. This fixes them.
* bundle.c (create_bundle): Die upon write failure.
* fast-import.c (keep_pack): Die upon write or close failure.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A NUL byte at beginning of file, or just after a newline
would provoke an invalid buf[-1] access in a few places.
* builtin-grep.c (cmd_grep): Don't access buf[-1].
* builtin-pack-objects.c (get_object_list): Likewise.
* builtin-rev-list.c (read_revisions_from_stdin): Likewise.
* bundle.c (read_bundle_header): Likewise.
* server-info.c (read_pack_info_file): Likewise.
* transport.c (insert_packed_refs): Likewise.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
Make test scripts executable.
bundle create: keep symbolic refs' names instead of resolving them
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The transport specific stuff was moved into libgit.a, and the
bundle specific stuff will not be left behind.
This is a big code move, with one exception: the function
unbundle() no longer outputs the list of refs. You have to call
list_bundle_refs() yourself for that.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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