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Consolidate caches in CI #95

Consolidate caches in CI

Consolidate caches in CI #95

Workflow file for this run

# Run this job on pushes to master and all PRs
name: Build and Test
on:
push:
branches:
- master
pull_request:
jobs:
build:
runs-on: ubuntu-latest
# Define the strategy for the build job. We generally want to cover each
# platform that we support here
strategy:
matrix:
platform: [generic, hifive_unmatched, cva6]
bits: [32, 64]
exclude:
# unmatched is not 32 bit
- platform: hifive_unmatched
bits: 32
# Output cache keys that were used so we can consolidate them later. Note
# that this is a matrix job, and job outputs for these are not well supported
# at all in Github Actions (https://github.com/orgs/community/discussions/26639).
# Essentially, the last job to set these output variables will win, which is
# not always great. In our case, though, this is actually fine since we don't
# necessarily need "precise" matching here -- any job's output should be good
# enough to serve as a future key into the cache.
outputs:
buildroot-dl-key: ${{ steps.restore-buildroot-dl.outputs.cache-primary-key }}
ccache-key: ${{ steps.restore-ccache.outputs.cache-primary-key }}
ymdh: ${{ steps.cache-keys.outputs.YMDH }}
steps:
###########
## Setup ##
###########
# First, we need to get the version of Keystone we are working on. We
# will also need submodules here since we are doing full builds
- name: Checkout Keystone
uses: actions/checkout@v3
with:
submodules: 'true'
# Get various keys for various caches
- name: Get cache keys
id: cache-keys
run: |
# Grab some timestamps for compiler caches
echo "YMDH=$(date -u +'%Y-%m-%d-%H')" >> "$GITHUB_OUTPUT"
echo "YMD=$(date -u +'%Y-%m-%d')" >> "$GITHUB_OUTPUT"
echo "YM=$(date -u +'%Y-%m')" >> "$GITHUB_OUTPUT"
echo "Y=$(date -u +'%Y')" >> "$GITHUB_OUTPUT"
# Install build dependencies
- name: Install dependencies
run: sudo apt-get update && sudo apt-get install -y cpio rsync bc makeself
# Restore build and download caches. We key these based on timestamps and build
# target, since these essentially "accumulate" useful information (such as source
# packages or cached compiled objects) over time. With this scheme, we'll pretty
# much always be using the max Github Action cache limit (10GB), but this is okay
# since we really only care about keeping the latest cache anyways.
- name: Restore buildroot packages
id: restore-buildroot-dl
uses: actions/cache/restore@v3
with:
path: dl.tar
key: buildroot-dl-${{ steps.cache-keys.outputs.YMDH }}
restore-keys: |
buildroot-dl-${{ steps.cache-keys.outputs.YMD }}
buildroot-dl-${{ steps.cache-keys.outputs.YM }}
buildroot-dl-${{ steps.cache-keys.outputs.Y }}
buildroot-dl-
- name: Restore ccache
id: restore-ccache
uses: actions/cache/restore@v3
with:
path: ccache.tar.xz
key: ccache-${{ steps.cache-keys.outputs.YMDH }}
restore-keys: |
ccache-${{ steps.cache-keys.outputs.YMD }}
ccache-${{ steps.cache-keys.outputs.YM }}
ccache-${{ steps.cache-keys.outputs.Y }}
ccache-
- name: Decompress caches
run: |
if [[ -f dl.tar ]] ; then tar -xf dl.tar -C buildroot ; fi
if [[ -f ccache.tar.xz ]]; then tar -xf ccache.tar.xz -C ~ ; fi
##############
## Keystone ##
##############
# Build Keystone and upload the results log if we fail to do so
- name: Build Keystone
run: |
KEYSTONE_PLATFORM=${{ matrix.platform }} \
KEYSTONE_BITS=${{ matrix.bits }} make -j$(nproc)
- name: Upload build log
if: failure()
uses: actions/upload-artifact@v4
with:
name: build-keystone-${{ matrix.platform }}${{ matrix.bits }}.log
path: build-${{ matrix.platform }}${{ matrix.bits }}/build.log
# We need parts of the build directory for future tests
- name: Compress build directory
run: |
# Convenient vars
BASEDIR="build-${{ matrix.platform }}${{ matrix.bits }}/buildroot.build"
PERPACKAGEDIR="$BASEDIR/per-package"
# Needed by most tests
COMPRESSDIRS="$BASEDIR/host $BASEDIR/images"
# Needed by runtime build tests
COMPRESSDIRS="$COMPRESSDIRS $PERPACKAGEDIR/keystone-examples/host/usr/share/keystone/sdk"
# Needed by end-to-end tests
COMPRESSDIRS="$COMPRESSDIRS $BASEDIR/target/root/"
tar -cf - $COMPRESSDIRS | xz -9 -T0 > build.tar.xz
- name: Compress cache directories
run: |
tar -C buildroot --exclude='**/git' -cf dl.tar dl/
tar -C ~ -cf - .buildroot-ccache | xz -9 -T0 > ccache.tar.xz
- name: Upload build directory
uses: actions/upload-artifact@v4
with:
name: keystone-${{ matrix.platform }}${{ matrix.bits }}-builddir
path: build.tar.xz
retention-days: 1
compression-level: 0
- name: Upload buildroot download directory
uses: actions/upload-artifact@v4
with:
name: keystone-${{ matrix.platform }}${{ matrix.bits }}-buildroot-dl
path: dl.tar
retention-days: 1
compression-level: 0
- name: Upload ccache directory
uses: actions/upload-artifact@v4
with:
name: keystone-${{ matrix.platform }}${{ matrix.bits }}-ccache
path: ccache.tar.xz
retention-days: 1
compression-level: 0
###############
## Utilities ##
###############
# Combine cache directories to save space
combine-caches:
runs-on: ubuntu-latest
needs: build
steps:
- name: Install dependencies
run: |
sudo apt-get -y update && sudo apt-get -y install ccache
# First, fetch the caches themselves
- name: Prepare output directories
run: |
mkdir -p buildroot/dl/ ~/.buildroot-ccache/
- name: Fetch buildroot caches
uses: actions/download-artifact@v4
with:
pattern: keystone-*-buildroot-dl
- name: Fetch ccache caches
uses: actions/download-artifact@v4
with:
pattern: keystone-*-ccache
# Then, combine the caches
- name: Merge caches
run: |
for d in keystone-*-buildroot-dl; do
tar --skip-old-files -xf "$d/dl.tar" -C buildroot
done
RESULTDIR="$HOME/.buildroot-ccache"
for d in keystone-*-ccache; do
TMPDIR=$(mktemp -d)
tar -xf "$d/ccache.tar.xz" -C "$TMPDIR"
( cd "$TMPDIR/.buildroot-ccache" ; cp -a --parents ? "$RESULTDIR" )
rm -rf "$TMPDIR"
done
ccache -d "$RESULTDIR" -c
- name: Recompress caches
run: |
tar -C buildroot --exclude='**/git' -cf dl.tar dl/
tar -C ~ -cf - .buildroot-ccache | xz -9 -T0 > ccache.tar.xz
- name: Save buildroot download cache
uses: actions/cache/save@v3
with:
path: dl.tar
key: ${{ needs.build.outputs.buildroot-dl-key }}
- name: Save ccache
uses: actions/cache/save@v3
with:
path: ccache.tar.xz
key: ${{ needs.build.outputs.ccache-key }}
###########
## Tests ##
###########
# Generic runtime tests, which only need to run once (on the host)
test-runtime-format:
runs-on: ubuntu-latest
steps:
# We don't need submodules here since Keystone is a monorepo!
- name: Checkout Keystone
uses: actions/checkout@v3
with:
submodules: 'false'
- name: Check format
run: |
sudo apt-get update && sudo apt-get install -y clang-format
FORMAT=$(git help -a | grep clang-format | tail -n1)
cd runtime ; FORMAT_RESULT=$(git $FORMAT)
[ "$FORMAT_RESULT" = "no modified files to format" ] || [ "$FORMAT_RESULT" = "clang-format did not modify any files" ]
test-runtime-functionality:
runs-on: ubuntu-latest
steps:
- name: Checkout Keystone
uses: actions/checkout@v3
with:
submodules: 'recursive'
- name: Run ctest
run: |
cd runtime
mkdir -p obj/test
pushd obj/test
cmake ../../test
make
ctest -VV || ( cat obj/test/Testing/Temporary/LastTest.log && false )
popd
# Build tests, which are run for each supported platform
test-runtime-build:
needs: build
uses: ./.github/workflows/build-runtime.yml
# System tests, which are run for simulatable platforms
test-system:
needs: build
uses: ./.github/workflows/test-system.yml