| # Calculates the size diffs for the each example binary. Runs when a pull |
| # request is created or modified. |
| |
| name: size-diff |
| |
| # We want to run this on all pull requests. Additionally, Bors needs workflows |
| # to run on the `staging` and `trying` branches to block merges on them. |
| on: |
| pull_request: |
| push: |
| branches: |
| - staging |
| - trying |
| |
| jobs: |
| size-diff: |
| # Using ubuntu-latest can cause breakage when ubuntu-latest is updated to |
| # point at a new Ubuntu version. Instead, explicitly specify the version, so |
| # we can update when we need to. This *could* break if we don't update it |
| # until support for 18.04 is dropped, but it is likely we'll have a reason |
| # to update to a newer Ubuntu before then anyway. |
| runs-on: ubuntu-18.04 |
| |
| steps: |
| # Clones a single commit from the libtock-rs repository. The commit cloned |
| # is a merge commit between the PR's target branch and the PR's source. |
| # We'll later add another commit (the pre-merge target branch) to the |
| # repository. |
| - name: Clone repository |
| uses: actions/checkout@v2.3.0 |
| |
| # Install a Rust toolchain with the components necessary to run |
| # `print-sizes`. This action doesn't seem to be able to install toolchains |
| # for multiple targets, so I add the targets later in the "size report" |
| # step. |
| - name: Install Rust toolchain |
| uses: actions-rs/toolchain@v1.0.6 |
| with: |
| profile: minimal |
| |
| # The main diff script. Stores the sizes of the example binaries for both |
| # the merge commit and the target branch. We display the diff in a |
| # separate step to make it easy to navigate to in the GitHub Actions UI. |
| - name: Compute sizes |
| run: | |
| UPSTREAM_REMOTE_NAME="${UPSTREAM_REMOTE_NAME:-origin}" |
| GITHUB_BASE_REF="${GITHUB_BASE_REF:-master}" |
| cd "${GITHUB_WORKSPACE}" |
| rustup target add riscv32imc-unknown-none-elf thumbv7em-none-eabi |
| make -j2 examples # The VM this runs on has 2 logical cores. |
| cargo run --release -p print_sizes >'${{runner.temp}}/merge-sizes' |
| git remote set-branches "${UPSTREAM_REMOTE_NAME}" "${GITHUB_BASE_REF}" |
| git fetch --depth=1 "${UPSTREAM_REMOTE_NAME}" "${GITHUB_BASE_REF}" |
| git checkout "${UPSTREAM_REMOTE_NAME}/${GITHUB_BASE_REF}" |
| rustup target add riscv32imc-unknown-none-elf thumbv7em-none-eabi |
| make -j2 examples |
| cargo run --release -p print_sizes >'${{runner.temp}}/base-sizes' |
| |
| # Computes and displays the size diff. diff returns a nonzero status code |
| # if the files differ, and GitHub interprets a nonzero status code as an |
| # error. To avoid GitHub interpreting a difference as an error, we add |
| # || exit 0 to the command. |
| - name: Size diff |
| run: diff '${{runner.temp}}/base-sizes' '${{runner.temp}}/merge-sizes' || exit 0 |