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The Coccinelle tool is an ingrained part of our build infrastructure. It
is executed by our CI to detect antipatterns and is used to detect
misuses of certain interfaces. It's presence in "contrib/" is thus
rather misleading.
Promote the configuration into the new "tools/" directory.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The code to accept shallow "git push" has been optimized.
* ps/receive-pack-shallow-optim:
commit: use commit graph in `lookup_commit_reference_gently()`
commit: make `repo_parse_commit_no_graph()` more robust
commit: avoid parsing non-commits in `lookup_commit_reference_gently()`
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In the next commit we will start to parse more commits via the
commit-graph. This change will lead to a segfault though because we try
to access the tree of a commit via `repo_get_commit_tree()`, but:
- The commit has been parsed via the commit-graph, and thus its
`maybe_tree` field is not yet populated.
- We cannot use the commit-graph to populate the commit's tree because
we're in the process of writing the commit-graph.
The consequence is that we'll get a `NULL` pointer for the tree in
`write_graph_chunk_data()`.
In theory we are already mindful of this situation, as we explicitly use
`repo_parse_commit_no_graph()` to parse the commit without the help of
the commit-graph. But that doesn't do the trick as the commit is already
marked as parsed, so the function will not re-populate it. And as the
commit-graph has been closed, neither will `get_commit_tree_oid()` be
able to load the tree for us.
It seems like this issue can only be hit under artificial circumstances:
the error was hit via `git_test_write_commit_graph_or_die()`, which is
run by git-commit(1) and git-merge(1) in case `GIT_TEST_COMMIT_GRAPH=1`:
$ GIT_TEST_COMMIT_GRAPH=1 meson test t7507-commit-verbose \
--test-args=-ix -i
...
++ git -c commit.verbose=true commit --amend
hint: Waiting for your editor to close the file...
./test-lib.sh: line 1012: 55895 Segmentation fault (core dumped) git -c commit.verbose=true commit --amend
To the best of my knowledge, this is the only case where we end up
writing a commit-graph in the same process that might have already
consulted the commit-graph to look up arbitrary objects. But regardless
of that, this feels like a bigger accident that is just waiting to
happen.
Make the code more robust by extending `repo_parse_commit_no_graph()` to
unparse a commit first in case we detect it's coming from a graph. This
ensures that we will re-read the object without it, and thus we will
populate `maybe_tree` properly.
This fix shouldn't have any performance consequences: the function is
only ever called in the "commit-graph.c" code, and we'll only re-parse
the commit at most once.
Add an exclusion to our Coccinelle rules so that it doesn't complain
about us accessing `maybe_tree` directly.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Rename three functions around the commit_list data structure.
* ps/commit-list-functions-renamed:
commit: rename `free_commit_list()` to conform to coding guidelines
commit: rename `reverse_commit_list()` to conform to coding guidelines
commit: rename `copy_commit_list()` to conform to coding guidelines
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Recently the MEMZERO_ARRAY() macro was introduced. In that commit also
coccinelle rules were added to capture cases that can be converted to
use that macro.
Later a few more cases were manually converted to use the macro, but
coccinelle didn't capture those. Extend the rules to capture those as
well.
In various cases the code could be further beautified by removing
parentheses which are no longer needed. Modify the coccinelle rules to
optimize those as well and fix them.
During conversion indentation also used spaces where tabs should be
used, fix that in one go.
Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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035c7de9e9e (cocci: apply the "revision.h" part of
"the_repository.pending", 2023-03-28) removed the last of the repo-less
functions and macros mentioned in the_repository.cocci at the time. No
stragglers appeared since then. Remove the applied rules now that they
have outlived their usefulness.
Also add a reminder to eventually remove the just added rules for
tree.h.
Suggested-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our coding guidelines say that:
Functions that operate on `struct S` are named `S_<verb>()` and should
generally receive a pointer to `struct S` as first parameter.
While most of the functions related to `struct commit_list` already
follow that naming schema, `free_commit_list()` doesn't.
Rename the function to address this and adjust all of its callers. Add a
compatibility wrapper for the old function name to ease the transition
and avoid any semantic conflicts with in-flight patch series. This
wrapper will be removed once Git 2.53 has been released.
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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In the previous commit a new coccinelle rule is added. But neiter
`make coccicheck` nor `meson compile coccicheck` did detect a case in
builtin/last-modified.c.
This case involves the field `scratch` in `struct last_modified`. This
field is of type `struct bitmap` and that struct has a member
`eword_t *words`. Both are defined in `ewah/ewok.h`. Now, while
builtin/last-modified.c does include that header (with the subdir in the
#include directive), it seems coccinelle does not process it. So it's
unaware of the type of `words` in the bitmap, and it doesn't recognize
the rule from previous commit that uses:
type T;
T *ptr;
Fix coccicheck by passing all possible include paths inside the Git
project so spatch(1) can find the headers and can determine the types.
Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce a new macro MEMZERO_ARRAY() that zeroes the memory allocated
by ALLOC_ARRAY() and friends. And add coccinelle rule to enforce the use
of this macro.
Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 036876a1067 (config: hide functions using `the_repository` by
default, 2024-08-13) we have moved around a bunch of functions in the
config subsystem that depend on `the_repository`. Those function have
been converted into mere wrappers around their equivalent function that
takes in a repository as parameter, and the intent was that we'll
eventually remove those wrappers to make the dependency on the global
repository variable explicit at the callsite.
Follow through with that intent and remove `git_config()`. All callsites
are adjusted so that they use `repo_config(the_repository, ...)`
instead. While some callsites might already have a repository available,
this mechanical conversion is the exact same as the current situation
and thus cannot cause any regression. Those sites should eventually be
cleaned up in a later patch series.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up around object access API.
* ps/object-store:
odb: rename `read_object_with_reference()`
odb: rename `pretend_object_file()`
odb: rename `has_object()`
odb: rename `repo_read_object_file()`
odb: rename `oid_object_info()`
odb: trivial refactorings to get rid of `the_repository`
odb: get rid of `the_repository` when handling submodule sources
odb: get rid of `the_repository` when handling the primary source
odb: get rid of `the_repository` in `for_each()` functions
odb: get rid of `the_repository` when handling alternates
odb: get rid of `the_repository` in `odb_mkstemp()`
odb: get rid of `the_repository` in `assert_oid_type()`
odb: get rid of `the_repository` in `find_odb()`
odb: introduce parent pointers
object-store: rename files to "odb.{c,h}"
object-store: rename `object_directory` to `odb_source`
object-store: rename `raw_object_store` to `object_database`
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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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Avoid regexp_constraint and instead use comparison_constraint when
listing functions to exclude from application of coccinelle rules,
as spatch can be built with different regexp engine X-<.
* jc/cocci-avoid-regexp-constraint:
cocci: matching (multiple) identifiers
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"make coccicheck" seems to work OK at GitHub CI using
$ spatch --version
spatch version 1.1.1 compiled with OCaml version 4.13.1
OCaml scripting support: yes
Python scripting support: yes
Syntax of regular expressions: PCRE
but not with
$ spatch --version
spatch version 1.3 compiled with OCaml version 5.3.0
OCaml scripting support: yes
Python scripting support: yes
Syntax of regular expressions: Str
Judging from https://ocaml.org/manual/5.3/api/Str.html, I suspect
that this probably is caused by the distinction between BRE vs PCRE.
As there is no reasonably clean way to write the multiple choice
matches portably between these two pattern languages, let's stop
using regexp_constraint and use compare_constraint instead when
listing the function names to exclude.
There are other uses of "!~" but they all want to match a single
simple token, that should work fine either with BRE or PCRE.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The 'third_party_sources' variable was moved to the root 'meson.build'
file in the previous commit. The variable is actually used to exclude
third party sources, so rename it accordingly to 'third_party_excludes'
to avoid confusion. While here, remove a duplicate from the list.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The Meson build for coccinelle static analysis lists all headers to
analyse. Due to the way Meson exports variables between subdirs, this
variable is also available in the root Meson build.
An upcoming commit, will add a new check complimenting 'hdr-check' in
the Makefile. This would require the list of headers. So move the
'coccinelle_headers' to the root Meson build and rename it to 'headers',
remove the root path being appended to each header and retain that in
the coccinelle Meson build since it is specific to the coccinelle build.
Also move the 'third_party_sources' variable to the root Meson build
since it is also a dependency for the 'headers' variable. This also
makes it easier to understand as the variable is now propagated from the
top level to the bottom.
While 'headers_to_check' is only computed when we have a repository and
the 'git' executable is present, the variable itself is exposed as an
empty array. This allows dependencies in upcoming commits to simply
check for length of the array and not worry about dependencies required
to actually populate the array.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In Meson, included subdirs export their variables to top level Meson
builds. In 'contrib/coccinelle/meson.build', we define two such
variables `sources` and `headers`. While these variables are specific to
the checks in the 'contrib/coccinelle/' directory, they also pollute the
top level 'meson.build'.
Rename them to be more specific, this ensures that they aren't
mistakenly used in the upper levels and avoid variable name collisions.
While here, change the empty list denotation to be consistent with other
places.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Wiring up coccinelle in the build, depends on running git commands to
get the list of files to operate on. Reasonable, for a feature mainly
used by people developing on git. If building git itself from a tarball
distribution of git's own source code, one likely does not need to run
coccinelle.
But running those git commands failed, and caused the build to error
out, if `spatch` was installed -- because the build assumed that its
presence indicated a desire to use it on this source tree. Instead, we
can expand the conditional to check for both `spatch` and the `.git`
file or directory.
Meson's `opt.require()` method allows us to add a prerequisite for the
feature option. If the prerequisite fails, then the option either:
- converts autodetection to disabled
- emits an informative error if the feature was set to enabled:
```
ERROR: Feature coccinelle cannot be enabled: coccinelle can only be run from a git checkout
```
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Wire up static analysis via Coccinelle via a new test target
"coccicheck". This target can be executed via `meson compile coccicheck`
and generates the semantic patch for us.
Note that we don't hardcode the list of source and header files that
shall be analyzed, and instead use git-ls-files(1) to find them for us.
This is because we also want to analyze files that may not get built on
the current platform, so finding all sources at configure time is easier
than introducing a new variable that tracks all sources, including those
which aren't being built.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Most of the functions in "refs.h" have two flavors: one that accepts a
`struct ref_store`, and one that figures it out via `the_repository`.
As part of the libification efforts we want to get rid of the latter
variant and stop relying on `the_repository` altogether.
Introduce a set of Coccinelle rules that transform callers of the "refs"
interfaces to pass a `struct ref_store`. These rules are not yet applied
by this patch so that it can be reviewed standalone more easily. This
will be done in the next patch.
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 for calling xstrncmpz() to compare a
NUL-terminated string with a buffer of a known length instead of using
strncmp() and checking the terminating NUL explicitly. This simplifies
callers by reducing code duplication.
I had to adjust remote.c manually because Coccinelle inexplicably
changed the indent of the else branches.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Plumb "struct key_value_info" through all code paths that end in
die_bad_number(), which lets us remove the helper functions that read
analogous values from "struct config_reader". As a result, nothing reads
config_reader.config_kvi any more, so remove that too.
In config.c, this requires changing the signature of
git_configset_get_value() to 'return' "kvi" in an out parameter so that
git_configset_get_<type>() can pass it to git_config_<type>(). Only
numeric types will use "kvi", so for non-numeric types (e.g.
git_configset_get_string()), pass NULL to indicate that the out
parameter isn't needed.
Outside of config.c, config callbacks now need to pass "ctx->kvi" to any
of the git_config_<type>() functions that parse a config string into a
number type. Included is a .cocci patch to make that refactor.
The only exceptional case is builtin/config.c, where git_config_<type>()
is called outside of a config callback (namely, on user-provided input),
so config source information has never been available. In this case,
die_bad_number() defaults to a generic, but perfectly descriptive
message. Let's provide a safe, non-NULL for "kvi" anyway, but make sure
not to change the message.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a new "const struct config_context *ctx" arg to config_fn_t to hold
additional information about the config iteration operation.
config_context has a "struct key_value_info kvi" member that holds
metadata about the config source being read (e.g. what kind of config
source it is, the filename, etc). In this series, we're only interested
in .kvi, so we could have just used "struct key_value_info" as an arg,
but config_context makes it possible to add/adjust members in the future
without changing the config_fn_t signature. We could also consider other
ways of organizing the args (e.g. moving the config name and value into
config_context or key_value_info), but in my experiments, the
incremental benefit doesn't justify the added complexity (e.g. a
config_fn_t will sometimes invoke another config_fn_t but with a
different config value).
In subsequent commits, the .kvi member will replace the global "struct
config_reader" in config.c, making config iteration a global-free
operation. It requires much more work for the machinery to provide
meaningful values of .kvi, so for now, merely change the signature and
call sites, pass NULL as a placeholder value, and don't rely on the arg
in any meaningful way.
Most of the changes are performed by
contrib/coccinelle/config_fn_ctx.pending.cocci, which, for every
config_fn_t:
- Modifies the signature to accept "const struct config_context *ctx"
- Passes "ctx" to any inner config_fn_t, if needed
- Adds UNUSED attributes to "ctx", if needed
Most config_fn_t instances are easily identified by seeing if they are
called by the various config functions. Most of the remaining ones are
manually named in the .cocci patch. Manual cleanups are still needed,
but the majority of it is trivial; it's either adjusting config_fn_t
that the .cocci patch didn't catch, or adding forward declarations of
"struct config_context ctx" to make the signatures make sense.
The non-trivial changes are in cases where we are invoking a config_fn_t
outside of config machinery, and we now need to decide what value of
"ctx" to pass. These cases are:
- trace2/tr2_cfg.c:tr2_cfg_set_fl()
This is indirectly called by git_config_set() so that the trace2
machinery can notice the new config values and update its settings
using the tr2 config parsing function, i.e. tr2_cfg_cb().
- builtin/checkout.c:checkout_main()
This calls git_xmerge_config() as a shorthand for parsing a CLI arg.
This might be worth refactoring away in the future, since
git_xmerge_config() can call git_default_config(), which can do much
more than just parsing.
Handle them by creating a KVI_INIT macro that initializes "struct
key_value_info" to a reasonable default, and use that to construct the
"ctx" arg.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update documentation regarding Coccinelle patches.
* gc/doc-cocci-updates:
cocci: codify authoring and reviewing practices
cocci: add headings to and reword README
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These practices largely reflect what we are already doing on the mailing
list, which should help new Coccinelle authors and reviewers get up to
speed.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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- Drop "examples" since we actually use the patches.
- Drop sentences that could be headings instead
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When 'unused.cocci' was added in 4f40f6cb73 (cocci: add and apply a
rule to find "unused" strbufs, 2022-07-05) it found three unused
strbufs, and when it was generalized in the next commit it managed to
find an unused string_list as well. That's four unused variables in
over 17 years, so apparently we rarely make this mistake.
Unfortunately, applying 'unused.cocci' is quite expensive, e.g. it
increases the from-scratch runtime of 'make coccicheck' by over 5:30
minutes or over 160%:
$ make -s cocciclean
$ time make -s coccicheck
* new spatch flags
real 8m56.201s
user 0m0.420s
sys 0m0.406s
$ rm contrib/coccinelle/unused.cocci contrib/coccinelle/tests/unused.*
$ make -s cocciclean
$ time make -s coccicheck
* new spatch flags
real 3m23.893s
user 0m0.228s
sys 0m0.247s
That's a lot of runtime spent for not much in return, and arguably an
unused struct instance sneaking in is not that big of a deal to
justify the significantly increased runtime.
Remove 'unused.cocci', because we are not getting our CPU cycles'
worth.
Signed-off-by: SZEDER Gábor <szeder.dev@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
"revision.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
"rerere.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
"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
"promisor-remote.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
"packfile.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
"pretty.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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Apply the part of "the_repository.pending.cocci" pertaining to
"diff.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
"commit.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
"commit-reach.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
"cache.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the case of diff.h, rerere.h and revision.h the macros were added
in [1], [2] and [3] when "the_repository.pending.cocci" didn't
exist. None of the subsequently added migration rules covered
them. Let's add those missing rules.
In the case of macros in "cache.h", "commit.h", "packfile.h",
"promisor-remote.h" and "refs.h" those aren't guarded by
"NO_THE_REPOSITORY_COMPATIBILITY_MACROS", but they're also macros that
add "the_repository" as the first argument, so we should migrate away
from them.
1. 2abf3503854 (revision.c: remove implicit dependency on the_index,
2018-09-21)
2. e6757652350 (diff.c: remove implicit dependency on the_index,
2018-09-21)
3. 35843b1123e (rerere.c: remove implicit dependency on the_index,
2018-09-21)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Sort the "the_repository.pending.cocci" file by which header the
macros are in, and add a comment to that effect in front of the
rules. This will make subsequent commits easier to follow, as we'll be
applying these rules on a header-by-header basis.
Once we've fully applied "the_repository.pending.cocci" we'll keep
this rules around for a while in "the_repository.cocci", to help any
outstanding topics and out-of-tree code to resolve textual or semantic
conflicts with these changes, but eventually we'll remove the
"the_repository.cocci" as a follow-up.
So even if some of these functions are subsequently moved and/or split
into other or new headers there's no risk of this becoming stale, if
and when that happens the we should be removing these rules anyway.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When these rules started being added in [1] they didn't use a ";"
after the ")", and would thus catch uses of these macros within
expressions. But as of [2] the new additions were broken in that
they'd only match a subset of the users of these macros.
Rather than narrowly fixing that, let's have these use the much less
verbose pattern introduced in my recent [3]: There's no need to
exhaustively enumerate arguments if we use the "..." syntax. This
means that we can fold all of these different rules into one.
1. afd69dcc219 (object-store: prepare read_object_file to deal with
any repo, 2018-11-13)
2. 21a9651ba3f (commit-reach: prepare get_merge_bases to handle any
repo, 2018-11-13)
3. 0e6550a2c63 (cocci: add a index-compatibility.pending.cocci,
2022-11-19)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "parse_commit_gently" macro went away in [1], so we don't need to
carry this for its migration.
1. ea3f7e598c8 (revision: use repository from rev_info when parsing
commits, 2020-06-23)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Have the last users of "USE_THE_INDEX_COMPATIBILITY_MACROS" use the
underlying *_index() variants instead. Now all previous users of
"USE_THE_INDEX_COMPATIBILITY_MACROS" have been migrated away from the
wrapper macros, and if applicable to use the "USE_THE_INDEX_VARIABLE"
added in [1].
Let's leave the "index-compatibility.cocci" in place, even though it
won't be doing anything on "master". It will benefit any out-of-tree
code that need to use these compatibility macros. We can eventually
remove it.
1. bdafeae0b9c (cache.h & test-tool.h: add & use
"USE_THE_INDEX_VARIABLE", 2022-11-19)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the redundant update_main_cache_tree() function, and make its
users use cache_tree_update() instead.
The behavior of populating the "the_index.cache_tree" if it wasn't
present already was needed when this function was introduced in [1],
but it hasn't been needed since [2]; The "cache_tree_update()" will
now lazy-allocate, so there's no need for the wrapper.
1. 996277c5206 (Refactor cache_tree_update idiom from commit,
2011-12-06)
2. fb0882648e0 (cache-tree: clean up cache_tree_update(), 2021-01-23)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a trivial rule for "write_cache_as_tree" to
"index-compatibility.cocci", and apply it. This was left out of the
rules added in 0e6550a2c63 (cocci: add a
index-compatibility.pending.cocci, 2022-11-19) because this
compatibility wrapper lived in "cache-tree.h", not "cache.h"
But it's like the other "USE_THE_INDEX_COMPATIBILITY_MACROS", so let's
migrate it too.
The replacement of "USE_THE_INDEX_COMPATIBILITY_MACROS" here with
"USE_THE_INDEX_VARIABLE" is a manual change on top, now that these
files only use "&the_index", and don't need any compatibility
macros (or functions).
The wrapping of some argument lists is likewise manual, as coccinelle
would otherwise give us overly long argument lists.
The reason for putting the "O" in the cocci rule on the "-" and "+"
lines is because I couldn't get correct whitespacing otherwise,
i.e. I'd end up with "oid,&the_index", not "oid, &the_index".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the rule added in [1] to change "cache_name_pos" to
"index_name_pos", which allows us to get rid of another
"USE_THE_INDEX_COMPATIBILITY_MACROS" macro.
The replacement of "USE_THE_INDEX_COMPATIBILITY_MACROS" here with
"USE_THE_INDEX_VARIABLE" is a manual change on top, now that these
files only use "&the_index", and don't need any compatibility
macros (or functions).
1. 0e6550a2c63 (cocci: add a index-compatibility.pending.cocci,
2022-11-19)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the "active_nr" part of "index-compatibility.pending.cocci",
which was left out in [1] due to an in-flight conflict. As of [2] the
topic we conflicted with has been merged to "master", so we can fully
apply this rule.
1. dc594180d9e (cocci & cache.h: apply variable section of "pending"
index-compatibility, 2022-11-19)
2. 9ea1378d046 (Merge branch 'ab/various-leak-fixes', 2022-12-14)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a semantic patch for replace ALLOC_ARRAY+COPY_ARRAY with DUP_ARRAY
to reduce code duplication and apply its results.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Squelch warnings from Coccinelle
* ab/fewer-the-index-macros:
cocci: avoid "should ... be a metavariable" warnings
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