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feat: add attest build provenance workflow #40

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feat: add attest build provenance workflow #40

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25 changes: 25 additions & 0 deletions .github/workflows/build-provenance.yaml
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name: Build provenance

on:
workflow_call:
inputs:
subject-checksums:
description: Subject checksums to attest; contents of a checksums file.
type: string
required: true

permissions: {}

jobs:
attest-build-provenance:
name: Attest build provenance
runs-on: ubuntu-latest
permissions:
attestations: write # to persist
id-token: write # to sign
steps:
- name: Write subject checksums to a file
run: printf %s "${{ inputs.subject-checksums }}" >subject-checksums.txt
- uses: actions/attest-build-provenance@00014ed6ed5efc5b1ab7f7f34a39eb55d41aa4f8 # v3.1.0
with:
subject-checksums: subject-checksums.txt