llvm-project/.ci/generate-buildkite-pipeline-premerge
Aiden Grossman 34d858635f
[CI] Move CI over to new project computation script
This patch migrates the CI over to the new compute_projects.py script
for calculating what projects need to be tested based on a change to
LLVM.

Reviewers: lnihlen, ldionne, tstellar, Endilll, joker-eph, Keenuts

Reviewed By: Keenuts, tstellar

Pull Request: https://github.com/llvm/llvm-project/pull/132642
2025-03-28 22:25:52 -07:00

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#!/usr/bin/env bash
#===----------------------------------------------------------------------===##
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
#===----------------------------------------------------------------------===##
#
# This file generates a Buildkite pipeline that triggers the various CI jobs for
# the LLVM project during pre-commit CI.
#
# See https://buildkite.com/docs/agent/v3/cli-pipeline#pipeline-format.
#
# As this outputs a yaml file, it's possible to log messages to stderr or
# prefix with "#".
set -eu
set -o pipefail
# Environment variables script works with:
# Set by buildkite
: ${BUILDKITE_PULL_REQUEST_BASE_BRANCH:=}
: ${BUILDKITE_COMMIT:=}
: ${BUILDKITE_BRANCH:=}
# Fetch origin to have an up to date merge base for the diff.
git fetch origin
# List of files affected by this commit
: ${MODIFIED_FILES:=$(git diff --name-only origin/${BUILDKITE_PULL_REQUEST_BASE_BRANCH}...HEAD)}
# Filter rules for generic windows tests
: ${WINDOWS_AGENTS:='{"queue": "windows"}'}
# Filter rules for generic linux tests
: ${LINUX_AGENTS:='{"queue": "linux"}'}
reviewID="$(git log --format=%B -n 1 | sed -nE 's/^Review-ID:[[:space:]]*(.+)$/\1/p')"
if [[ "${reviewID}" != "" ]]; then
buildMessage="https://llvm.org/${reviewID}"
else
buildMessage="Push to branch ${BUILDKITE_BRANCH}"
fi
cat <<EOF
steps:
EOF
echo "Files modified:" >&2
echo "$MODIFIED_FILES" >&2
modified_dirs=$(echo "$MODIFIED_FILES" | cut -d'/' -f1 | sort -u)
echo "Directories modified:" >&2
echo "$modified_dirs" >&2
# Project specific pipelines.
# If libc++ or one of the runtimes directories changed.
if echo "$modified_dirs" | grep -q -E "^(libcxx|libcxxabi|libunwind|runtimes|cmake)$"; then
cat <<EOF
- trigger: "libcxx-ci"
build:
message: "${buildMessage}"
commit: "${BUILDKITE_COMMIT}"
branch: "${BUILDKITE_BRANCH}"
EOF
fi
# Generic pipeline for projects that have not defined custom steps.
#
# Individual projects should instead define the pre-commit CI tests that suits their
# needs while letting them run on the infrastructure provided by LLVM.
# Figure out which projects need to be built on each platform
source <(git diff --name-only origin/${BUILDKITE_PULL_REQUEST_BASE_BRANCH}...HEAD | python3 .ci/compute_projects.py Linux)
linux_projects=${projects_to_build}
linux_check_targets=${project_check_targets}
linux_runtimes=${runtimes_to_build}
linux_runtime_check_targets=${runtimes_check_targets}
source <(git diff --name-only origin/${BUILDKITE_PULL_REQUEST_BASE_BRANCH}...HEAD | python3 .ci/compute_projects.py Windows)
windows_projects=${projects_to_build}
windows_check_targets=${project_check_targets}
# Generate the appropriate pipeline
if [[ "${linux_projects}" != "" ]]; then
cat <<EOF
- label: ':linux: Linux x64'
artifact_paths:
- 'artifacts/**/*'
- '*_result.json'
- 'build/test-results.*.xml'
agents: ${LINUX_AGENTS}
retry:
automatic:
- exit_status: -1 # Agent was lost
limit: 2
- exit_status: 255 # Forced agent shutdown
limit: 2
timeout_in_minutes: 120
env:
CC: 'clang'
CXX: 'clang++'
commands:
- './.ci/monolithic-linux.sh "$(echo ${linux_projects} | tr ' ' ';')" "$(echo ${linux_check_targets})" "$(echo ${linux_runtimes} | tr ' ' ';')" "$(echo ${linux_runtime_check_targets})"'
EOF
fi
if [[ "${windows_projects}" != "" ]]; then
cat <<EOF
- label: ':windows: Windows x64'
artifact_paths:
- 'artifacts/**/*'
- '*_result.json'
- 'build/test-results.*.xml'
agents: ${WINDOWS_AGENTS}
retry:
automatic:
- exit_status: -1 # Agent was lost
limit: 2
- exit_status: 255 # Forced agent shutdown
limit: 2
timeout_in_minutes: 150
env:
MAX_PARALLEL_COMPILE_JOBS: '16'
MAX_PARALLEL_LINK_JOBS: '4'
commands:
- 'C:\\BuildTools\\Common7\\Tools\\VsDevCmd.bat -arch=amd64 -host_arch=amd64'
- 'bash .ci/monolithic-windows.sh "$(echo ${windows_projects} | tr ' ' ';')" "$(echo ${windows_check_targets})"'
EOF
fi