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The following commit(s) were added to refs/heads/master by this push:
new 1a2d22e6089 ci: enable ccache persistence across CI workflow runs
1a2d22e6089 is described below
commit 1a2d22e6089eadf3f64972629860a65e106047f5
Author: Swatantra Yadav <[email protected]>
AuthorDate: Sun Oct 11 00:22:27 2026 +0530
ci: enable ccache persistence across CI workflow runs
Currently, Linux matrix jobs in .github/workflows/build.yml pass '-c' to
cibuild.sh to enable ccache inside the Docker container, but the cache
directory (sources/tools/ccache) is discarded upon container exit and runner
teardown.
This change enables persistent ccache caching across GitHub Actions
workflow runs:
1. Add an actions/cache@v6 step in build.yml to restore and save
sources/tools/ccache per board matrix job.
2. Add a post-build permission adjustment step so the runner user can
archive Docker-created cache files without permission issues.
3. Configure CCACHE_MAXSIZE (defaulting to 1G per board matrix job) in
cibuild.sh to prevent unbounded repository cache consumption.
4. Add the ccache wrapper directory to PATH in tools/ci/platforms/ubuntu.sh.
Addresses #20483.
Signed-off-by: Swatantra Yadav <[email protected]>
---
.github/workflows/build.yml | 15 +++++++++++++++
tools/ci/cibuild.sh | 1 +
tools/ci/platforms/ubuntu.sh | 1 +
3 files changed, 17 insertions(+)
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f718d7f62e0..42e9001939f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -326,6 +326,14 @@ jobs:
- name: Extract sources
run: tar zxf sources.tar.gz
+ - name: Restore ccache
+ uses: actions/cache@v6
+ with:
+ path: sources/tools/ccache
+ key: ${{ runner.os }}-${{ matrix.boards }}-ccache-${{ github.sha }}
+ restore-keys: |
+ ${{ runner.os }}-${{ matrix.boards }}-ccache-
+
- name: Docker Login
uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f #
v4.6.0
with:
@@ -395,6 +403,13 @@ jobs:
./cibuild.sh -c -A -N -R -S testlist/${{matrix.boards}}.dat
fi
+ - name: Prepare ccache for caching
+ if: always()
+ run: |
+ if [ -d sources/tools/ccache ]; then
+ sudo chmod -R a+rwX sources/tools/ccache
+ fi
+
- name: Run host_info sanity check
uses: ./sources/nuttx/.github/actions/ci-container
with:
diff --git a/tools/ci/cibuild.sh b/tools/ci/cibuild.sh
index 1aea477655a..204472ee0b5 100755
--- a/tools/ci/cibuild.sh
+++ b/tools/ci/cibuild.sh
@@ -114,6 +114,7 @@ function usage {
function enable_ccache {
export CCACHE_DIR="${CIWORKSPACE}"/tools/ccache
+ export CCACHE_MAXSIZE="${CCACHE_MAXSIZE:-1G}"
}
function setup_repos {
diff --git a/tools/ci/platforms/ubuntu.sh b/tools/ci/platforms/ubuntu.sh
index 42a0597a5b3..8a0e3086d49 100755
--- a/tools/ci/platforms/ubuntu.sh
+++ b/tools/ci/platforms/ubuntu.sh
@@ -119,6 +119,7 @@ bloaty() {
}
c_cache() {
+ add_path "${NUTTXTOOLS}"/ccache/bin
if ! type ccache > /dev/null 2>&1; then
sudo apt-get install -y ccache
fi
