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Attest build provenance of the PHAR and the turbo extension binaries #6893

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53 changes: 53 additions & 0 deletions .github/workflows/phar.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -1852,6 +1852,11 @@
runs-on: "ubuntu-latest"
timeout-minutes: 15

permissions:
contents: read # actions/checkout of this repository
id-token: write # the Sigstore certificate of the build provenance attestation
attestations: write # stores the attestation in this repository

steps:
- name: Harden the runner (Audit all outbound calls)
uses: step-security/harden-runner@46b06cea07f9e64621fdf066ba77ac6915163d43 # v2.22.3
Expand Down Expand Up @@ -1885,6 +1890,21 @@
path: "pie-assets"
if-no-files-found: "error"

# SLSA build provenance of every asset, signed through Sigstore and
# stored in this repository (`gh attestation verify <file>
# --repo phpstan/phpstan-src`) — and of the binary inside each, the
# file PIE installs, so an installed extension can be checked too.
# Before the upload: the release is immutable once published, and must
# not carry unattested assets.
- name: "Attest build provenance"
if: startsWith(github.ref, 'refs/tags/')
uses: actions/attest@1e69f48acb82d1966a394da916b4c1698aa569d6 # v4.2.2
with:
subject-path: |
pie-assets/*
turbo-pie-artifacts/*/phpstan_turbo.so
turbo-pie-artifacts/*/php_phpstan_turbo.dll

- name: "Create the phpstan/turbo-ext release and upload the assets"
if: startsWith(github.ref, 'refs/tags/')
env:
Expand Down Expand Up @@ -2802,6 +2822,12 @@
- turbo-compile-windows
runs-on: "ubuntu-latest"
timeout-minutes: 60

permissions:
contents: read # actions/checkout of this repository
id-token: write # the Sigstore certificate of the build provenance attestation
attestations: write # stores the attestation in this repository

steps:
- name: Harden the runner (Audit all outbound calls)
uses: step-security/harden-runner@46b06cea07f9e64621fdf066ba77ac6915163d43 # v2.22.3
Expand Down Expand Up @@ -3004,6 +3030,33 @@
done < turbo-layout.tsv
echo "$TURBO_VERSION" > phpstan-dist/turbo-ext/.version

# Exactly the binaries this commit changes: an unchanged one in the
# dist was not produced by this run (the run that staged it attested
# it), and stays out.
- name: "List the binaries to attest"
id: attest-subjects
working-directory: phpstan-dist
run: |
git add -A
SUBJECTS="$(git diff --cached --name-only --diff-filter=AM -- phpstan.phar 'turbo-ext/*/phpstan_turbo*' | sed 's|^|phpstan-dist/|')"
if [[ -n "$SUBJECTS" ]]; then
printf '%s\n' "$SUBJECTS"
{
echo "paths<<SUBJECTS"
printf '%s\n' "$SUBJECTS"
echo "SUBJECTS"
} >> "$GITHUB_OUTPUT"
fi

# SLSA build provenance signed through Sigstore, verifiable with
# `gh attestation verify <file> --repo phpstan/phpstan-src`. Before the
# commit: a binary that cannot be attested must not ship.
- name: "Attest build provenance"
if: steps.attest-subjects.outputs.paths != ''
uses: actions/attest@1e69f48acb82d1966a394da916b4c1698aa569d6 # v4.2.2
with:
subject-path: ${{ steps.attest-subjects.outputs.paths }}

- name: "Install lucky_commit"
uses: baptiste0928/cargo-install@8195d4f734a149db85385bb4102b42efcd373759 # v3.5.0
with:
Expand Down
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