This includes a few new options to the .clang-format configuration file
to A) adhere to option changes within clang-format 16 (namely the option
AlignTrailingComments), and B) enforce existing style guide rules with
new clang-format rules.
Instead of manually compressing/decompressing a toolchain tarball if
`TRY_USE_LOCAL_TOOLCHAIN` is set, let's use the cache action's automatic
built-in compression (which is zstd, I believe).
This version now natively supports read-only caches (`cache/restore@v3`)
so we no longer need to pin the version to a commit in actions/cache#489
which is an unmerged PR.
The update is mostly mechanical:
- Steps with `CACHE_SKIP_SAVE` not set can use the plain `cache@v3`
action.
- Steps with `CACHE_SKIP_SAVE` set to a constant `true` are changed to
`cache/restore@v3`.
- Steps with saving disabled when running on a pull request are changed
to a pair of `cache/restore@v3` and `cache/save@v3`. This setup is
used for the large (100s of MB) ccache and Toolchain caches. As caches
saved in pull requests can only be utilized from within the same PR,
uploading these would only waste time and our storage quote.
Therefore, we skip the `save` steps if running on a PR.
Co-authored-by: Cameron Youell <cameronyouell@gmail.com>
This reverts commit b0606d90f0.
This seems to prevent libegl-mesa0 from being installed (which for some
reason isn't failing the Azure jobs - the failure seen later is that
ccache is not installed).
They currently reside under Build/<arch>, meaning that they would be
redownloaded for each architecture/toolchain build combo. Move them to a
location that can be re-used for all builds.
The two major changes noticeable on the SerenityOS codebase are:
- Much improved support for const placement, clang-format-14 ignored
our east-const configuration in various places
- Different formatting for requires clauses, now breaking them onto
their own line, which helps with readability a bit
Current versions of CLion also ship LLVM 15, so the built-in formatting
now matches CI formatting again :^)
So far we've gotten away with using GCC 11 for Lagom and to compile the
toolchain, but via #15795 we discovered a compiler bug that has been
fixed in the latest version but would error the build with CI's GCC 11.
Time for an upgrade :^)
We already use ubuntu-22.04 images in most places, so this is pretty
straightforward. The only exception is Idan's self-hosted runner, which
uses Ubuntu Focal. LibJS should build fine with GCC 11, still.
This commit upgrades Github Actions workers to ubuntu-22.04
As part of that change, we (currently) no longer need the backports
nor toolchain-r/test PPAs, because ubuntu-22.04 include
recent-enough version of QEMU and gcc
This shouldn't cause any breaking changes, so a toolchain rebuild is not
required.
As per Hendiadyoin's request, math errno is disabled by default, which
should enable some extra compiler optimizations in LibGL and LibSoftGPU
code that uses math functions heavily.
Co-Authored-By: Ali Mohammad Pur <mpfard@serenityos.org>
The LLVM patch has been broken up into smaller commits and moved to a
separate directory. CI should look at this new location to determine if
the toolchain needs to be rebuilt.
This rule seems to be confused about basic syntax of C++.
It flags with false positives such as:
```
The object was created but it is not being used. If you wish
to call constructor, 'this->set_y::set_y(....)' should be used.
```
Lets suppress it until it can be fixed.
This rule appears to be fundamentally broken for our code base, it
flags `void` functions all over the place, as well as constructors.
Lets suppress it for now.
Now that clang-format-14 ubuntu packages are available, it's time to
finally upgrade our clang-format version. This version brings with it
a bunch of useful features with const-placement being the most notable.
These will be enabled in the following commits.
This rule attempts to flag invisible Unicode characters which would
potentially be used by an attacker to hide code that humans can't see.
https://pvs-studio.com/en/docs/warnings/v1076/
AKA the "Trojan Source" attack: https://arxiv.org/abs/2111.00169
Unfortunately our `LibUnicode` source code contains these hidden
characters as they are part of the Unicode character set that the
library exposes. So we have, and will always have 100s of false
positives.
This rule appears to produce a lot of noise, most of them look like
false positives (400+). Lets suppress for now to try to move the signal
to noise ratio higher for PVS-Studio.
Reference: https://pvs-studio.com/en/docs/warnings/v1047/
Much like the sonar cloud workflow, this workflow runs pvs-studio
static analysis, and uploads the SARIF results to github. This
is the most "convenient" way to publish results, but unfortunately
users need write access to the repository to reach static analysis
results rendered in github.
As a work around folks can just look at the logs where issues are
printed during analysis, this works reasonably well.
In the future it might make sense to also render the results as HTML
and publish them using github page, much like we do with man pages.
I believe the pvs-studio plog-converter tool supports that as well.
https://pvs-studio.com/en/docs/manual/0036/
