feat: add build attestations and verification for installer binaries#22
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zerosnacks merged 31 commits intomasterfrom Jan 22, 2026
Merged
feat: add build attestations and verification for installer binaries#22zerosnacks merged 31 commits intomasterfrom
zerosnacks merged 31 commits intomasterfrom
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- Add all release targets to CI test matrix (musl, arm64) - Add platform and arch labels to matrix - Install musl-tools and cross-compilation tools for musl targets - Use BASE_DIR/FOUNDRY_DIR pattern matching foundry for XDG support - Add --yes alias for -y flag - Fix test to unset XDG_CONFIG_HOME
- Update release workflow to generate attestations using actions/attest-build-provenance@v3 - Record attestation URLs to .attestation.txt files included in releases - Add attestation verification to foundryup-init.sh installer script - Support --force/-f flag and FOUNDRYUP_SKIP_VERIFY env var to skip verification
Attestations are not yet available for current releases, so skip verification in the test to avoid failures when downloading.
The downloader function exits on 404, which caused the script to fail when attestations are not available. Use a new try_download function that silently returns non-zero on failure instead.
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Closed
zerosnacks
requested review from
0xrusowsky,
DaniPopes,
grandizzy,
mattsse and
onbjerg
as code owners
- Add get_ext helper function to return .exe for win32 platforms - Simplify attestation verification test to assert 'binary verified ✓' - Add tests for get_ext function - Remove redundant tests
onbjerg
approved these changes
Jan 21, 2026
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Summary
This PR adds build attestation generation to the release workflow and verification to the installer script, improving supply chain security for foundryup.
Changes
Release Workflow (
.github/workflows/release.yml)permissions: {}at the top level to restrict default permissionsid-token: write- Required for OIDC token to sign attestationscontents: read- Required to read repository contentsattestations: write- Required to upload attestationsactions/attest-build-provenance@v3to generate attestations for each platform binary.attestation.txtfiles (e.g.,foundryup_linux_amd64.attestation.txt)Installer Script (
foundryup-init.sh)--force/-fflag to skip verification (setsFOUNDRYUP_IGNORE_VERIFICATION=true)get_exthelper function for Windows.exeextension handlingTests
script_get_ext_windowsandscript_get_ext_unixtests for extension helperscript_compute_sha256_known_valuetest for SHA256 computationscript_downloads_with_attestation_verificationtest asserting "binary verified ✓"script_downloads_with_force_skips_attestationtest for --force flagSecurity Benefits
Usage
Attestation verification happens automatically:
curl -L https://foundry.paradigm.xyz | bashTo skip verification (not recommended):
curl -L https://foundry.paradigm.xyz | bash -s -- --force