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Remove implicit reliance on the_repository global in the APIs
around tree objects and make it explicit which repository to work
in.
* rs/tree-wo-the-repository:
cocci: remove obsolete the_repository rules
cocci: convert parse_tree functions to repo_ variants
tree: stop using the_repository
tree: use repo_parse_tree()
path-walk: use repo_parse_tree_gently()
pack-bitmap-write: use repo_parse_tree()
delta-islands: use repo_parse_tree()
bloom: use repo_parse_tree()
add-interactive: use repo_parse_tree_indirect()
tree: add repo_parse_tree*()
environment: move access to core.maxTreeDepth into repo settings
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The `struct fsck_ref_report` has a couple fields that are intended to
improve the error reporting for broken ref reports by showing which
object ID or target reference the ref points to. These fields are never
set though and are thus essentially unused.
Remove them.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add and apply a semantic patch to convert calls to parse_tree() and
friends to the corresponding variant that takes a repository argument,
to allow the functions that implicitly use the_repository to be retired
once all potential in-flight topics are settled and converted as well.
The changes in .c files were generated by Coccinelle, but I fixed a
whitespace bug it would have introduced to builtin/commit.c.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow callers of parse_tag() pass in the repository to use. Let most of
them pass in the_repository to get the same result as before. One of
them has stopped using the_repository in ef9b0370da (sha1-name.c: store
and use repo in struct disambiguate_state, 2019-04-16); let it pass in
its stored repository.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code refactoring around object database sources.
* ps/object-source-management:
odb: handle recreation of quarantine directories
odb: handle changing a repository's commondir
chdir-notify: add function to unregister listeners
odb: handle initialization of sources in `odb_new()`
http-push: stop setting up `the_repository` for each reference
t/helper: stop setting up `the_repository` repeatedly
builtin/index-pack: fix deferred fsck outside repos
oidset: introduce `oidset_equal()`
odb: move logic to disable ref updates into repo
odb: refactor `odb_clear()` to `odb_free()`
odb: adopt logic to close object databases
setup: convert `set_git_dir()` to have file scope
path: move `enter_repo()` into "setup.c"
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"git config get --path" segfaulted on an ":(optional)path" that
does not exist, which has been corrected.
* jc/optional-path:
config: really treat missing optional path as not configured
config: really pretend missing :(optional) value is not there
config: mark otherwise unused function as file-scope static
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Various issues detected by Asan have been corrected.
* jk/asan-bonanza:
t: enable ASan's strict_string_checks option
fsck: avoid parse_timestamp() on buffer that isn't NUL-terminated
fsck: remove redundant date timestamp check
fsck: avoid strcspn() in fsck_ident()
fsck: assert newline presence in fsck_ident()
cache-tree: avoid strtol() on non-string buffer
Makefile: turn on NO_MMAP when building with ASan
pack-bitmap: handle name-hash lookups in incremental bitmaps
compat/mmap: mark unused argument in git_munmap()
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When asked to perform object consistency checks via the `--fsck-objects`
flag we verify that each object part of the pack is valid. In general,
this check can even be performed outside of a Git repository: we don't
need an initialized object database as we simply read the object from
the packfile directly.
But there's one exception: a subset of the object checks may be deferred
to a later point in time. For now, this only concerns ".gitmodules" and
".gitattributes" files: whenever we see a tree referencing these files
we queue them for a deferred check. This is done because we need to do
some extra checks for those files to ensure that they are well-formed,
and these checks need to be done regardless of whether the corresponding
blobs are part of the packfile or not.
This works inside a repository, but unfortunately the logic leads to a
segfault when running outside of one. This is because we eventually call
`odb_read_object()`, which will crash because the object database has
not been initialized.
There's multiple options here:
- We could in theory create a purely in-memory database with only a
packfile store that contains the single packfile. We don't really
have the infrastructure for this yet though, and it would end up
being quite hacky.
- We could refuse to perform consistency checks outside of a
repository. But most of the checks work alright, so this would be a
regression.
- We can skip the finalizing consistency checks when running outside
of a repository. This is not as invasive as skipping all checks,
but it's not great to randomly skip a subset of tests, either.
None of these options really feel perfect. The first one would be the
obvious choice if easily possible.
There's another option though: instead of skipping the final object
checks, we can die if there are any queued object checks. With this
change we now die exactly if and only if we would have previously
segfaulted. Like this we ensure that objects that _may_ fail the
consistency checks won't be silently skipped, and at the same time we
give users a much better error message.
Refactor the code accordingly and add a test that would have triggered
the segfault. Note that we also move down the logic to add the packfile
to the store. There is no point doing this any earlier than right before
we execute `fsck_finish()`, and it ensures that the logic to set up and
perform the consistency check is self-contained.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These callers expect that git_config_pathname() that returns 0 is a
signal that the variable they passed has a string they need to act
on. But with the introduction of ":(optional)path" earlier, that is
no longer the case. If the path specified by the configuration
variable is missing, their variable will get a NULL in it, and they
need to act on it (often, just refraining from copying it elsewhere).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In fsck_ident(), we parse the timestamp with parse_timestamp(), which is
really an alias for strtoumax(). But since our buffer may not be
NUL-terminated, this can trigger a complaint from ASan's
strict_string_checks mode. This is a false positive, since we know that
the buffer contains a trailing newline (which we checked earlier in the
function), and that strtoumax() would stop there.
But it is worth working around ASan's complaint. One is because that
will let us turn on strict_string_checks by default, which has helped
catch other real problems. And two is that the safety of the current
code is very hard to reason about (it subtly depends on distant code
which could change).
One option here is to just parse the number left-to-right ourselves. But
we care about the size of a timestamp_t and detecting overflow, since
that's part of the point of these checks. And doing that correctly is
tricky. So we'll instead just pull the digits into a separate,
NUL-terminated buffer, and use that to call parse_timestamp().
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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After calling "parse_timestamp(p, &end, 10)", we complain if "p == end",
which would imply that we did not see any digits at all. But we know
this cannot be the case, since we would have bailed already if we did
not see any digits, courtesy of extra checks added by 8e4309038f (fsck:
do not assume NUL-termination of buffers, 2023-01-19). Since then,
checking "p == end" is redundant and we can drop it.
This will make our lives a little easier as we refactor further.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We may be operating on a buffer that is not NUL-terminated, but we use
strcspn() to parse it. This is OK in practice, as discussed in
8e4309038f (fsck: do not assume NUL-termination of buffers, 2023-01-19),
because we know there is at least a trailing newline in our buffer, and
we always pass "\n" to strcspn(). So we know it will stop before running
off the end of the buffer.
But this is a subtle point to hang our memory safety hat on. And it
confuses ASan's strict_string_checks mode, even though it is technically
a false positive (that mode complains that we have no NUL, which is
true, but it does not know that we have verified the presence of the
newline already).
Let's instead open-code the loop. As a bonus, this makes the logic more
obvious (to my mind, anyway). The current code skips forward with
strcspn until it hits "<", ">", or "\n". But then it must check which it
saw to decide if that was what we expected or not, duplicating some
logic between what's in the strcspn() and what's in the domain logic.
Instead, we can just check each character as we loop and act on it
immediately.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The fsck code purports to handle buffers that are not NUL-terminated,
but fsck_ident() uses some string functions. This works OK in practice,
as explained in 8e4309038f (fsck: do not assume NUL-termination of
buffers, 2023-01-19). Before calling fsck_ident() we'll have called
verify_headers(), which makes sure we have at least a trailing newline.
And none of our string-like functions will walk past that newline.
However, that makes this code at the top of fsck_ident() very confusing:
*ident = strchrnul(*ident, '\n');
if (**ident == '\n')
(*ident)++;
We should always see that newline, or our memory safety assumptions have
been violated! Further, using strchrnul() is weird, since the whole
point is that if the newline is not there, we don't necessarily have a
NUL at all, and might read off the end of the buffer.
So let's have callers pass in the boundary of our buffer, which lets us
safely find the newline with memchr(). And if it is not there, this is a
BUG(), because it means our caller did not validate the input with
verify_headers() as it was supposed to (and we are better off bailing
rather than having memory-safety problems).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we're creating a tag, we want to make sure that gpgsig and
gpgsig-sha256 headers are allowed for the commit. The default fsck
behavior is to ignore the fact that they're left over, but some of our
tests enable strict checking which flags them nonetheless. Add
improved checking for these headers as well as documentation and several
tests.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In "config.c" we host both the business logic to read and write config
files as well as the logic to parse specific Git-related variables. On
the one hand this is mixing concerns, but even more importantly it means
that we cannot easily remove the dependency on `the_repository` in our
config parsing logic.
Move the logic into "environment.c". This file is a grab bag of all
kinds of global state already, so it is quite a good fit. Furthermore,
it also hosts most of the global variables that we're parsing the config
values into, making this an even better fit.
Note that there is one hidden change: in `parse_fsync_components()` we
use an `int` to iterate through `ARRAY_SIZE(fsync_component_names)`. But
as -Wsign-compare warnings are enabled in this file this causes a
compiler warning. The issue is fixed by using a `size_t` instead.
This change allows us to drop the `USE_THE_REPOSITORY_VARIABLE`
declaration.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
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-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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In Git, fsck operations can ignore known broken objects via the
`fsck.skipList` configuration. This option expects a path to a file with
the list of object names. When the configuration is specified without a
path, an error message is printed, but the command continues as if the
configuration was not set. Configuring `fsck.skipList` without a value
is a misconfiguration so config parsing should be more strict and reject
it.
Update `git_fsck_config()` to no longer ignore misconfiguration of
`fsck.skipList`. The same behavior is also present for
`fetch.fsck.skipList` and `receive.fsck.skipList` so the configuration
parsers for these are updated to ensure the related operations remain
consistent.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function `for_each_packed_object` currently relies on the global
variable `the_repository`. To eliminate global variable usage in
`packfile.c`, we should progressively shift the dependency on
the_repository to higher layers. Let's remove its usage from this
function and closely related function `is_promisor_object`.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce a new subcommand "verify" in git-refs(1) to allow the user to
check the reference database consistency and also this subcommand will
be used as the entry point of checking refs for "git-fsck(1)".
Add "verbose" field into "fsck_options" to indicate whether we should
print verbose messages when checking refs and objects consistency.
Remove bit-field for "strict" field, this is because we cannot take
address of a bit-field which makes it unhandy to set member variables
when parsing the command line options.
The "git-fsck(1)" declares "fsck_options" variable with "static"
identifier which avoids complaint by the leak-checker. However, in
"git-refs verify", we need to do memory clean manually. Thus add
"fsck_options_clear" function in "fsck.c" to provide memory clean
operation.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: shejialuo <shejialuo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce a new struct "fsck_ref_report" to contain the information we
need when reporting refs-related messages.
With the new "fsck_vreport" function, add a new function
"fsck_report_ref" to report refs-related fsck error message. Unlike
"report" function uses the exact parameters, we simply pass "struct
fsck_ref_report *report" as the parameter. This is because at current we
don't know exactly how many fields we need. By passing this parameter,
we don't need to change this function prototype when we want to add more
information into "fsck_ref_report".
We have introduced "fsck_report_ref" function to report the error
message for refs. We still need to add the corresponding callback
function. Create refs-specific "error_func" callback
"fsck_refs_error_function".
Last, add "FSCK_REFS_OPTIONS_DEFAULT" macro to create default options
when checking ref consistency.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: shejialuo <shejialuo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The static function "report" provided by "fsck.c" aims at checking error
type and calling the callback "error_func" to report the message. Both
refs and objects need to check the error type of the current fsck
message. In order to extract this common behavior, create a new function
"fsck_vreport". Instead of using "...", provide "va_list" to allow more
flexibility.
Instead of changing "report" prototype to be align with the
"fsck_vreport" function, we leave the "report" prototype unchanged due
to the reason that there are nearly 62 references about "report"
function. Simply change "report" function to use "fsck_vreport" to
report objects related messages.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: shejialuo <shejialuo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "fsck_error" callback is designed to report the objects-related
error messages. It accepts two parameter "oid" and "object_type" which
is not generic. In order to provide a unified callback which can report
either objects or refs, remove the objects-related parameters and add
the generic parameter "void *fsck_report".
Create a new "fsck_object_report" structure which incorporates the
removed parameters "oid" and "object_type". Then change the
corresponding references to adapt to new "fsck_error" callback.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: shejialuo <shejialuo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The names of objects-related fsck error functions are generic. It's OK
when there is only object database check. However, we are going to
introduce refs database check report function. To avoid ambiguity,
rename object-related fsck error functions to explicitly indicate these
functions are used to report objects-related messages.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: shejialuo <shejialuo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "skiplist" field in "fsck_options" is related to objects. Because we
are going to introduce ref consistency check, the "skiplist" name is too
general which will make the caller think "skiplist" is related to both
the refs and objects.
It may seem that for both refs and objects, we should provide a general
"skiplist" here. However, the type for "skiplist" is `struct oidset`
which is totally unsuitable for refs.
To avoid above ambiguity, rename "skiplist" to "skip_oids".
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: shejialuo <shejialuo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A CPP macro USE_THE_REPOSITORY_VARIABLE is introduced to help
transition the codebase to rely less on the availability of the
singleton the_repository instance.
* ps/use-the-repository:
hex: guard declarations with `USE_THE_REPOSITORY_VARIABLE`
t/helper: remove dependency on `the_repository` in "proc-receive"
t/helper: fix segfault in "oid-array" command without repository
t/helper: use correct object hash in partial-clone helper
compat/fsmonitor: fix socket path in networked SHA256 repos
replace-object: use hash algorithm from passed-in repository
protocol-caps: use hash algorithm from passed-in repository
oidset: pass hash algorithm when parsing file
http-fetch: don't crash when parsing packfile without a repo
hash-ll: merge with "hash.h"
refs: avoid include cycle with "repository.h"
global: introduce `USE_THE_REPOSITORY_VARIABLE` macro
hash: require hash algorithm in `empty_tree_oid_hex()`
hash: require hash algorithm in `is_empty_{blob,tree}_oid()`
hash: make `is_null_oid()` independent of `the_repository`
hash: convert `oidcmp()` and `oideq()` to compare whole hash
global: ensure that object IDs are always padded
hash: require hash algorithm in `oidread()` and `oidclr()`
hash: require hash algorithm in `hasheq()`, `hashcmp()` and `hashclr()`
hash: drop (mostly) unused `is_empty_{blob,tree}_sha1()` functions
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Building with "-Werror -Wwrite-strings" is now supported.
* ps/no-writable-strings: (27 commits)
config.mak.dev: enable `-Wwrite-strings` warning
builtin/merge: always store allocated strings in `pull_twohead`
builtin/rebase: always store allocated string in `options.strategy`
builtin/rebase: do not assign default backend to non-constant field
imap-send: fix leaking memory in `imap_server_conf`
imap-send: drop global `imap_server_conf` variable
mailmap: always store allocated strings in mailmap blob
revision: always store allocated strings in output encoding
remote-curl: avoid assigning string constant to non-const variable
send-pack: always allocate receive status
parse-options: cast long name for OPTION_ALIAS
http: do not assign string constant to non-const field
compat/win32: fix const-correctness with string constants
pretty: add casts for decoration option pointers
object-file: make `buf` parameter of `index_mem()` a constant
object-file: mark cached object buffers as const
ident: add casts for fallback name and GECOS
entry: refactor how we remove items for delayed checkouts
line-log: always allocate the output prefix
line-log: stop assigning string constant to file parent buffer
...
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The `oidset_parse_file_carefully()` function implicitly depends on
`the_repository` when parsing object IDs. Fix this by having callers
pass in the hash algorithm to use.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
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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We're about to enable `-Wwrite-strings`, which changes the type of
string constants to `const char[]`. Fix various sites where we assign
such constants to non-const variables.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Leakfixes.
* ps/leakfixes:
builtin/mv: fix leaks for submodule gitfile paths
builtin/mv: refactor to use `struct strvec`
builtin/mv duplicate string list memory
builtin/mv: refactor `add_slash()` to always return allocated strings
strvec: add functions to replace and remove strings
submodule: fix leaking memory for submodule entries
commit-reach: fix memory leak in `ahead_behind()`
builtin/credential: clear credential before exit
config: plug various memory leaks
config: clarify memory ownership in `git_config_string()`
builtin/log: stop using globals for format config
builtin/log: stop using globals for log config
convert: refactor code to clarify ownership of check_roundtrip_encoding
diff: refactor code to clarify memory ownership of prefixes
config: clarify memory ownership in `git_config_pathname()`
http: refactor code to clarify memory ownership
checkout: clarify memory ownership in `unique_tracking_name()`
strbuf: fix leak when `appendwholeline()` fails with EOF
transport-helper: fix leaking helper name
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The out parameter of `git_config_pathname()` is a `const char **` even
though we transfer ownership of memory to the caller. This is quite
misleading and has led to many memory leaks all over the place. Adapt
the parameter to instead be `char **`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* fixes/2.45.1/2.44:
Revert "fsck: warn about symlink pointing inside a gitdir"
Revert "Add a helper function to compare file contents"
clone: drop the protections where hooks aren't run
tests: verify that `clone -c core.hooksPath=/dev/null` works again
Revert "core.hooksPath: add some protection while cloning"
init: use the correct path of the templates directory again
hook: plug a new memory leak
ci: stop installing "gcc-13" for osx-gcc
ci: avoid bare "gcc" for osx-gcc job
ci: drop mention of BREW_INSTALL_PACKAGES variable
send-email: avoid creating more than one Term::ReadLine object
send-email: drop FakeTerm hack
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* fixes/2.45.1/2.43:
Revert "fsck: warn about symlink pointing inside a gitdir"
Revert "Add a helper function to compare file contents"
clone: drop the protections where hooks aren't run
tests: verify that `clone -c core.hooksPath=/dev/null` works again
Revert "core.hooksPath: add some protection while cloning"
init: use the correct path of the templates directory again
hook: plug a new memory leak
ci: stop installing "gcc-13" for osx-gcc
ci: avoid bare "gcc" for osx-gcc job
ci: drop mention of BREW_INSTALL_PACKAGES variable
send-email: avoid creating more than one Term::ReadLine object
send-email: drop FakeTerm hack
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* fixes/2.45.1/2.42:
Revert "fsck: warn about symlink pointing inside a gitdir"
Revert "Add a helper function to compare file contents"
clone: drop the protections where hooks aren't run
tests: verify that `clone -c core.hooksPath=/dev/null` works again
Revert "core.hooksPath: add some protection while cloning"
init: use the correct path of the templates directory again
hook: plug a new memory leak
ci: stop installing "gcc-13" for osx-gcc
ci: avoid bare "gcc" for osx-gcc job
ci: drop mention of BREW_INSTALL_PACKAGES variable
send-email: avoid creating more than one Term::ReadLine object
send-email: drop FakeTerm hack
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* fixes/2.45.1/2.41:
Revert "fsck: warn about symlink pointing inside a gitdir"
Revert "Add a helper function to compare file contents"
clone: drop the protections where hooks aren't run
tests: verify that `clone -c core.hooksPath=/dev/null` works again
Revert "core.hooksPath: add some protection while cloning"
init: use the correct path of the templates directory again
hook: plug a new memory leak
ci: stop installing "gcc-13" for osx-gcc
ci: avoid bare "gcc" for osx-gcc job
ci: drop mention of BREW_INSTALL_PACKAGES variable
send-email: avoid creating more than one Term::ReadLine object
send-email: drop FakeTerm hack
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* fixes/2.45.1/2.40:
Revert "fsck: warn about symlink pointing inside a gitdir"
Revert "Add a helper function to compare file contents"
clone: drop the protections where hooks aren't run
tests: verify that `clone -c core.hooksPath=/dev/null` works again
Revert "core.hooksPath: add some protection while cloning"
init: use the correct path of the templates directory again
hook: plug a new memory leak
ci: stop installing "gcc-13" for osx-gcc
ci: avoid bare "gcc" for osx-gcc job
ci: drop mention of BREW_INSTALL_PACKAGES variable
send-email: avoid creating more than one Term::ReadLine object
send-email: drop FakeTerm hack
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Revert overly aggressive "layered defence" that went into 2.45.1
and friends, which broke "git-lfs", "git-annex", and other use
cases, so that we can rebuild necessary counterparts in the open.
* jc/fix-2.45.1-and-friends-for-2.39:
Revert "fsck: warn about symlink pointing inside a gitdir"
Revert "Add a helper function to compare file contents"
clone: drop the protections where hooks aren't run
tests: verify that `clone -c core.hooksPath=/dev/null` works again
Revert "core.hooksPath: add some protection while cloning"
init: use the correct path of the templates directory again
hook: plug a new memory leak
ci: stop installing "gcc-13" for osx-gcc
ci: avoid bare "gcc" for osx-gcc job
ci: drop mention of BREW_INSTALL_PACKAGES variable
send-email: avoid creating more than one Term::ReadLine object
send-email: drop FakeTerm hack
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This reverts commit a33fea08 (fsck: warn about symlink pointing
inside a gitdir, 2024-04-10), which warns against symbolic links
commonly created by git-annex.
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* maint-2.44: (41 commits)
Git 2.44.1
Git 2.43.4
Git 2.42.2
Git 2.41.1
Git 2.40.2
Git 2.39.4
fsck: warn about symlink pointing inside a gitdir
core.hooksPath: add some protection while cloning
init.templateDir: consider this config setting protected
clone: prevent hooks from running during a clone
Add a helper function to compare file contents
init: refactor the template directory discovery into its own function
find_hook(): refactor the `STRIP_EXTENSION` logic
clone: when symbolic links collide with directories, keep the latter
entry: report more colliding paths
t5510: verify that D/F confusion cannot lead to an RCE
submodule: require the submodule path to contain directories only
clone_submodule: avoid using `access()` on directories
submodules: submodule paths must not contain symlinks
clone: prevent clashing git dirs when cloning submodule in parallel
...
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* maint-2.43: (40 commits)
Git 2.43.4
Git 2.42.2
Git 2.41.1
Git 2.40.2
Git 2.39.4
fsck: warn about symlink pointing inside a gitdir
core.hooksPath: add some protection while cloning
init.templateDir: consider this config setting protected
clone: prevent hooks from running during a clone
Add a helper function to compare file contents
init: refactor the template directory discovery into its own function
find_hook(): refactor the `STRIP_EXTENSION` logic
clone: when symbolic links collide with directories, keep the latter
entry: report more colliding paths
t5510: verify that D/F confusion cannot lead to an RCE
submodule: require the submodule path to contain directories only
clone_submodule: avoid using `access()` on directories
submodules: submodule paths must not contain symlinks
clone: prevent clashing git dirs when cloning submodule in parallel
t7423: add tests for symlinked submodule directories
...
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* maint-2.42: (39 commits)
Git 2.42.2
Git 2.41.1
Git 2.40.2
Git 2.39.4
fsck: warn about symlink pointing inside a gitdir
core.hooksPath: add some protection while cloning
init.templateDir: consider this config setting protected
clone: prevent hooks from running during a clone
Add a helper function to compare file contents
init: refactor the template directory discovery into its own function
find_hook(): refactor the `STRIP_EXTENSION` logic
clone: when symbolic links collide with directories, keep the latter
entry: report more colliding paths
t5510: verify that D/F confusion cannot lead to an RCE
submodule: require the submodule path to contain directories only
clone_submodule: avoid using `access()` on directories
submodules: submodule paths must not contain symlinks
clone: prevent clashing git dirs when cloning submodule in parallel
t7423: add tests for symlinked submodule directories
has_dir_name(): do not get confused by characters < '/'
...
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* maint-2.41: (38 commits)
Git 2.41.1
Git 2.40.2
Git 2.39.4
fsck: warn about symlink pointing inside a gitdir
core.hooksPath: add some protection while cloning
init.templateDir: consider this config setting protected
clone: prevent hooks from running during a clone
Add a helper function to compare file contents
init: refactor the template directory discovery into its own function
find_hook(): refactor the `STRIP_EXTENSION` logic
clone: when symbolic links collide with directories, keep the latter
entry: report more colliding paths
t5510: verify that D/F confusion cannot lead to an RCE
submodule: require the submodule path to contain directories only
clone_submodule: avoid using `access()` on directories
submodules: submodule paths must not contain symlinks
clone: prevent clashing git dirs when cloning submodule in parallel
t7423: add tests for symlinked submodule directories
has_dir_name(): do not get confused by characters < '/'
docs: document security issues around untrusted .git dirs
...
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* maint-2.40: (39 commits)
Git 2.40.2
Git 2.39.4
fsck: warn about symlink pointing inside a gitdir
core.hooksPath: add some protection while cloning
init.templateDir: consider this config setting protected
clone: prevent hooks from running during a clone
Add a helper function to compare file contents
init: refactor the template directory discovery into its own function
find_hook(): refactor the `STRIP_EXTENSION` logic
clone: when symbolic links collide with directories, keep the latter
entry: report more colliding paths
t5510: verify that D/F confusion cannot lead to an RCE
submodule: require the submodule path to contain directories only
clone_submodule: avoid using `access()` on directories
submodules: submodule paths must not contain symlinks
clone: prevent clashing git dirs when cloning submodule in parallel
t7423: add tests for symlinked submodule directories
has_dir_name(): do not get confused by characters < '/'
docs: document security issues around untrusted .git dirs
upload-pack: disable lazy-fetching by default
...
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* maint-2.39: (38 commits)
Git 2.39.4
fsck: warn about symlink pointing inside a gitdir
core.hooksPath: add some protection while cloning
init.templateDir: consider this config setting protected
clone: prevent hooks from running during a clone
Add a helper function to compare file contents
init: refactor the template directory discovery into its own function
find_hook(): refactor the `STRIP_EXTENSION` logic
clone: when symbolic links collide with directories, keep the latter
entry: report more colliding paths
t5510: verify that D/F confusion cannot lead to an RCE
submodule: require the submodule path to contain directories only
clone_submodule: avoid using `access()` on directories
submodules: submodule paths must not contain symlinks
clone: prevent clashing git dirs when cloning submodule in parallel
t7423: add tests for symlinked submodule directories
has_dir_name(): do not get confused by characters < '/'
docs: document security issues around untrusted .git dirs
upload-pack: disable lazy-fetching by default
fetch/clone: detect dubious ownership of local repositories
...
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In the wake of fixing a vulnerability where `git clone` mistakenly
followed a symbolic link that it had just written while checking out
files, writing into a gitdir, let's add some defense-in-depth by
teaching `git fsck` to report symbolic links stored in its trees that
point inside `.git/`.
Even though the Git project never made any promises about the exact
shape of the `.git/` directory's contents, there are likely repositories
out there containing symbolic links that point inside the gitdir. For
that reason, let's only report these as warnings, not as errors.
Security-conscious users are encouraged to configure
`fsck.symlinkPointsToGitDir = error`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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Work to support a repository that work with both SHA-1 and SHA-256
hash algorithms has started.
* eb/hash-transition: (30 commits)
t1016-compatObjectFormat: add tests to verify the conversion between objects
t1006: test oid compatibility with cat-file
t1006: rename sha1 to oid
test-lib: compute the compatibility hash so tests may use it
builtin/ls-tree: let the oid determine the output algorithm
object-file: handle compat objects in check_object_signature
tree-walk: init_tree_desc take an oid to get the hash algorithm
builtin/cat-file: let the oid determine the output algorithm
rev-parse: add an --output-object-format parameter
repository: implement extensions.compatObjectFormat
object-file: update object_info_extended to reencode objects
object-file-convert: convert commits that embed signed tags
object-file-convert: convert commit objects when writing
object-file-convert: don't leak when converting tag objects
object-file-convert: convert tag objects when writing
object-file-convert: add a function to convert trees between algorithms
object: factor out parse_mode out of fast-import and tree-walk into in object.h
cache: add a function to read an OID of a specific algorithm
tag: sign both hashes
commit: export add_header_signature to support handling signatures on tags
...
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Remove unused header "#include".
* en/header-cleanup:
treewide: remove unnecessary includes in source files
treewide: add direct includes currently only pulled in transitively
trace2/tr2_tls.h: remove unnecessary include
submodule-config.h: remove unnecessary include
pkt-line.h: remove unnecessary include
line-log.h: remove unnecessary include
http.h: remove unnecessary include
fsmonitor--daemon.h: remove unnecessary includes
blame.h: remove unnecessary includes
archive.h: remove unnecessary include
treewide: remove unnecessary includes in source files
treewide: remove unnecessary includes from header files
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Tighten URL checks fsck makes in a URL recorded for submodules.
* vd/fsck-submodule-url-test:
submodule-config.c: strengthen URL fsck check
t7450: test submodule urls
test-submodule: remove command line handling for check-name
submodule-config.h: move check_submodule_url
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