Files
carbon-lang/.github/workflows/pre_commit.yaml
T
Dana JansensandJon Ross-Perkins f5e69734d9 Bump clang version to 19 (#5440)
The version of clangd/clang-tidy on developer machines has slowly
diverged from the one on the CI builders, which is causing a slowly
increasing amount of pain as clang-tidy CI runs fail (incorrectly) over
things that a newer clangd/clang-tidy was perfectly fine with locally.
This bumps the Clang version used in the ubuntu builders to 19, which is
the most recent in Debian stable.

We use https://apt.llvm.org instead of LLVM's GitHub releases
(https://github.com/llvm/llvm-project/releases) as the former more
reliably has packages for newer Clang/LLVM versions on x64. The
community-build releases binaries on LLVM's GitHub have stopped
including Ubuntu packages that match the GitHub x64 Ubuntu workers for
some time (for at least the 18 and 19 releases).

By moving to apt.llvm.org packages we only download and install the
headers and libraries needed for development, rather than every output
of building llvm, which is much faster and saves lots of disk space. We
also remove the system installations of other versions of clang/llvm so
we should end up using negative disk space. We can no longer easily
cache the installation but apt.llvm.org is a reliable end point.

We bump the ubuntu image version for the github workers to 24.04, as
apt.llvm.org has stopped building images for 22.10 in 2022 at its end of
life.

The `pre_commit` workflow disabled sudo unlike the other workflows that
install Clang/LLVM, including the `clang-tidy` workflow (which is also
run on `pull_request`). We bring it into alignment with the other
workflows so that we can install the llvm packages. And we lock its
ubuntu image to 24.04 so that it can be moved in lockstep with the other
workflows that depend on Clang/LLVM.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2025-05-12 15:12:53 +00:00

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YAML

# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
# Exceptions. See /LICENSE for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
name: pre-commit
on:
pull_request:
merge_group:
push:
branches: [trunk]
permissions:
contents: read # For actions/checkout.
jobs:
pre-commit:
runs-on: ubuntu-24.04
steps:
- name: Harden Runner
uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
with:
egress-policy: block
# When adding endpoints, see README.md.
# prettier-ignore
allowed-endpoints: >
*.dl.sourceforge.net:443
api.github.com:443
bcr.bazel.build:443
downloads.sourceforge.net:443
files.pythonhosted.org:443
github.com:443
mirror.bazel.build:443
nodejs.org:443
objects.githubusercontent.com:443
pypi.org:443
registry.npmjs.org:443
releases.bazel.build:443
storage.googleapis.com:443
sourceforge.net:443
- uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
- uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
# Ensure LLVM is set up consistently.
- uses: ./.github/actions/build-setup-common
with:
matrix_runner: ubuntu-24.04
remote_cache_upload: '--remote_upload_local_results=false'
- uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
# We want to automatically create github suggestions for pre-commit file
# changes for a pull request. But `pull_request` actions never have write
# permissions to the repository, so we create the suggestions in a separate
# privileged `workflow_run` action in pre_commit_suggestions.yaml. Here,
# we upload the diffs and event configuration to an artifact for use by
# that action.
- name: Collect pre-commit output
if: failure()
run: |
mkdir -p pre-commit-output
git diff > pre-commit-output/diff
cp $GITHUB_EVENT_PATH pre-commit-output/event
- uses: actions/upload-artifact@5d5d22a31266ced268874388b861e4b58bb5c2f3 # v4.3.1
if: failure()
with:
name: pre-commit output
path: pre-commit-output/*