If a clang-tidy child process exits with a signal then run-clang-tidy will exit
with an error but there is no hint why in the output, since the clang-tidy
doesn't log anything and may not even have had the opportunity to do so
depending on the signal used.
`subprocess.CompletedProcess.returncode` is the negative signal number in this
case.
I hit this in a CI system where the parallelism used exceeded the RAM assigned
to the container causing the OOM killer to SIGKILL clang-tidy processes.
Reviewed By: sylvestre.ledru
Differential Revision: https://reviews.llvm.org/D99081
Added an option to control whether to apply the fixes found in notes attached to clang tidy errors or not.
Diagnostics may contain multiple notes each offering different ways to fix the issue, for that reason the default behaviour should be to not look at fixes found in notes.
Instead offer up all the available fix-its in the output but don't try to apply the first one unless `-fix-notes` is supplied.
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D84924
The run-clang-tidy.py helper script is supposed to be used by the
user, hence it should be placed in the user's PATH. Some
distributions, like Gentoo [1], won't have it in PATH unless it is
installed in bin/.
Furthermore, installed scripts in PATH usually do not carry a filename
extension, since there is no need to know that this is a Python
script. For example Debian and Ubuntu already install this script as
'run-clang-tidy' [2] and hence build systems like Meson also look for
this name first [3]. Hence we install run-clang-tidy.py as
run-clang-tidy, as suggested by Sylvestre Ledru [4].
1: https://bugs.gentoo.org/753380
2: 60aefb1417/debian/clang-tidy-X.Y.links.in (L2)
3: b6dc4d5e5c/mesonbuild/scripts/clangtidy.py (L44)
4: https://reviews.llvm.org/D90972#2380640
Reviewed By: sylvestre.ledru, JonasToth
Differential Revision: https://reviews.llvm.org/D90972
Clang-tidy seems to output color only when printing directly to
terminal, but an option to force color-output has been added in
https://reviews.llvm.org/D7947
Using a MemoryBufferRef, If there is an error parsing, we can point the user to the location of the file.
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D93024
Changed `ClangTidyOptions::mergeWith` to operate on the instance instead of returning a copy. The old mergeWith method has been renamed to merge and marked as nodiscard, to aid in disambiguating which one is which.
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D91184
Let clang-tidy to read config from specified file.
Example:
$ clang-tidy --config-file=/some/path/myTidyConfig --list-checks --
...this will read config from '/some/path/myTidyConfig'.
ClangTidyMain.cpp reads ConfigFile into string and then assigned read data to 'Config' i.e. makes like '--config' code flow internally.
May speed-up tidy runtime since now it will just look-up <file-path>
instead of searching ".clang-tidy" in parent-dir(s).
Directly specifying config path helps setting build dependencies.
Thanks to @DmitryPolukhin for valuable suggestion. This patch now propose
change only in ClangTidyMain.cpp.
Reviewed By: DmitryPolukhin
Differential Revision: https://reviews.llvm.org/D89936
Now that clang-tidy supports the --use-color command line option, it's
a better user experience to use --use-color in run-clang-tidy.py and
preserving the colored output.
The action='store_true' option of argparse.add_argument implicitly
generates a default value of False if the argument is not specified.
Thus, the allow_enabling_alpha_checkers argument of
get_tidy_invocation is never None.
Extend the `InheritParentConfig` support introduced in D75184 for the command line option `--config`.
The current behaviour of `--config` is to when set, disable looking for `.clang-tidy` configuration files.
This new behaviour lets you set `InheritParentConfig` to true in the command line to then look for `.clang-tidy` configuration files to be merged with what's been specified on the command line.
Reviewed By: DmitryPolukhin
Differential Revision: https://reviews.llvm.org/D81949
This patch adds `--use-color` command line option and `UseColor` option to clang-tidy to control colors in diagnostics. With these options, users can force colorful output. This is useful when using clang-tidy with parallelization command line tools (like ninja and GNU parallel), as they often pipe clang-tidy's standard output and make the colors disappear.
Reviewed By: njames93
Differential Revision: https://reviews.llvm.org/D79477
Fix various tool libraries not to link to clang's .a libraries and dylib
simultaneously. This may cause breakage, in particular through
duplicate command-line option declarations.
Differential Revision: https://reviews.llvm.org/D81967
When using `-warnings-as-errors`, If there are any warnings promoted to errors, clang-tidy exits with the number of warnings. This really isn't needed and can cause issues when the number of warnings doesn't fit into 8 bits as POSIX terminals aren't designed to handle more than that.
This addresses https://bugs.llvm.org/show_bug.cgi?id=46305.
Bug originally added in D15528
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D81953
Summary:
Without this patch clang-tidy stops finding file configs on the nearest
.clang-tidy file. In some cases it is not very convenient because it
results in common parts duplication into every child .clang-tidy file.
This diff adds optional config inheritance from the parent directories
config files.
Test Plan:
Added test cases in existing config test.
Reviewers: alexfh, gribozavr2, klimek, hokein
Subscribers: njames93, arphaman, xazax.hun, aheejin, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D75184
This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.
This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.
This doesn't actually modify StringRef yet, I'll do that in a follow-up.
Summary:
This library allows to create clang-tidy tools with custom checks outside of llvm repo
using prebuilt clang release tarball.
Test Plan:
Checked that clang-tidy works as before. New library exists in istall dir.
Reviewers: smeenai, gribozavr, stephanemoore
Subscribers: mgorny, xazax.hun, cfe-commits
Tags: #clang-tools-extra, #clang
Differential Revision: https://reviews.llvm.org/D73300
Update clang-tidy to use InitLLVM, like several other llvm tools that
were previously updated. On Windows, this allows clang-tidy to operate
on arguments containing characters which cannot be represented in the
system's ANSI code page such as filenames with Unicode characters.
Fixes bugzilla bug 43751.
Patch by Tristan Labelle.
Differential Revision: https://reviews.llvm.org/D70694
This reverts commit 3f76260dc0.
Breaks at least these tests on Windows:
Clang :: Driver/clang-offload-bundler.c
Clang :: Driver/clang-offload-wrapper.c
Use clang_target_link_libraries() in order to support linking against
libclang-cpp instead of static libraries.
Differential Revision: https://reviews.llvm.org/D68448
llvm-svn: 373786
Instead, put all checks in a cmake variable and reference this.
Also, make clangd use the the ClangTidyForceLinker.h header instead
of duplicating the list of modules -- the duplicate copy was missing
the new "darwin" checker added in r373065.
Differential Revision: https://reviews.llvm.org/D68132
llvm-svn: 373082
Summary:
Creates a new darwin ClangTidy module and adds the darwin-dispatch-once-nonstatic check that warns about dispatch_once_t variables not in static or global storage. This catches a missing static for local variables in e.g. singleton initialization behavior, and also warns on storing dispatch_once_t values in Objective-C instance variables. C/C++ struct/class instances may potentially live in static/global storage, and are ignored for this check.
The osx.API static analysis checker can find the non-static storage use of dispatch_once_t; I thought it useful to also catch this issue in clang-tidy when possible.
This is a re-land of https://reviews.llvm.org/D67567
Reviewers: thakis, gribozavr, stephanemoore
Subscribers: Eugene.Zelenko, mgorny, xazax.hun, jkorous, arphaman, kadircet, usaxena95
Tags: #clang-tools-extra, #clang, #llvm
Differential Revision: https://reviews.llvm.org/D68109
llvm-svn: 373065
Summary:
Creates a new darwin ClangTidy module and adds the darwin-dispatch-once-nonstatic check that warns about dispatch_once_t variables not in static or global storage. This catches a missing static for local variables in e.g. singleton initialization behavior, and also warns on storing dispatch_once_t values in Objective-C instance variables. C/C++ struct/class instances may potentially live in static/global storage, and are ignored for this check.
The osx.API static analysis checker can find the non-static storage use of dispatch_once_t; I thought it useful to also catch this issue in clang-tidy when possible.
Contributed By: mwyman
Reviewers: benhamilton, hokein, stephanemoore, aaron.ballman, gribozavr
Reviewed By: stephanemoore, gribozavr
Subscribers: jkorous, arphaman, kadircet, usaxena95, NoQ, xazax.hun, lebedev.ri, mgorny, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D67567
llvm-svn: 373028
Summary:
It is a separate abstraction that is used in more contexts than just
a helper for ClangTidyDiagnosticConsumer.
Subscribers: mgorny, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D66747
llvm-svn: 369918
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
Differential revision: https://reviews.llvm.org/D66259
llvm-svn: 368944
Summary:
Now that clang is going to be able to build the Linux kernel again on
x86, and we have gen_compile_commands.py upstream for generating
compile_commands.json, clang-tidy can be used on the Linux kernel
source.
To that end, this commit adds a new clang-tidy module to be used for
checks specific to Linux kernel source. The Linux kernel follows its own
style of C, and it will be useful to separate those checks into their
own module.
This also adds an initial check that makes sure that return values from
the kernel error functions like PTR_ERR and ERR_PTR are checked. It also
makes sure that any functions that directly return values from these
functions are checked.
Subscribers: xazax.hun, gribozavr, Eugene.Zelenko, lebedev.ri, mgorny, jdoerfert, cfe-commits
Tags: #clang, #clang-tools-extra
Reviewers: aaron.ballman, alexfh, hokein, JonasToth
Differential Revision: https://reviews.llvm.org/D59963
llvm-svn: 367071
Summary:
run-clang-tidy.py was enforcing '-header-filter' parameter with an
unfortunate default value when none was given. Thus, leading to
overwritten clang-tidy configuration (e.g. from .clang-tidy).
This change removes the default value for '-header-filter' resulting in
the default behaviour of clang-tidy itself.
Fixes PR#41426
Reviewed By: hintonda
Patch by Torbjörn Klatt!
Tags: #clang-tools-extra, #clang
Differential Revision: https://reviews.llvm.org/D61747
llvm-svn: 361344
Summary: The output of clang-tidy itself already has enough newlines, so the resulting output is more in line with the usual compiler output.
Patch by svenpanne.
Reviewers: alexfh, JonasToth
Reviewed By: JonasToth
Subscribers: JonasToth, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61850
llvm-svn: 360883
Summary: When run-clang-tidy is given the -quiet flag, do not output the potentially hundreds of enabled check names at the beginning.
Patch by svenpanne.
Reviewers: alexfh, JonasToth
Reviewed By: JonasToth
Subscribers: JonasToth, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61849
llvm-svn: 360869
Summary:
At Mozilla we are using this tool in order to perform review-time static-analysis, since some patches contain a large number of files we've discovered this issue, where `stderr` gets mixed with `stdout` thus obfuscating our possibility to parse the output.
The patch that we are currently use can be found [here](https://searchfox.org/mozilla-central/source/build/build-clang/clang-tidy-8.patch).
This is just an upstream of the original patch.
Reviewers: JonasToth
Reviewed By: JonasToth
Subscribers: cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D60453
llvm-svn: 357994
The Yaml module is missing on some systems and on many of clang buildbots.
But the test for run-clang-tidy.py doesn't fail due to 'NOT' statement masking a python runtime error.
This patch conditionally imports and enables the yaml module only if it's present in the system.
If not, then '-export-fixes' is disabled.
Differential Revision: https://reviews.llvm.org/D59734
llvm-svn: 357114
Summary:
Add a way to expand modular headers for PPCallbacks. Checks can opt-in for this
expansion by overriding the new registerPPCallbacks virtual method and
registering their PPCallbacks in the preprocessor created for this specific
purpose.
Use module expansion in the readability-identifier-naming check
Reviewers: gribozavr, usaxena95, sammccall
Reviewed By: gribozavr
Subscribers: nemanjai, mgorny, xazax.hun, kbarton, jdoerfert, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D59528
llvm-svn: 356750
[clang-tidy] Parallelize clang-tidy-diff.py
This patch has 2 rationales:
- large patches lead to long command lines and often cause max command line length restrictions imposed by OS;
- clang-tidy runs on modified files are independent and can be done in parallel, the same as done for run-clang-tidy.
Differential Revision: https://reviews.llvm.org/D5766
llvm-svn: 356649
Ian Campbell