fix(ci): skip updater signing on PR builds from forks/Dependabot#203
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tylergraydev wants to merge 2 commits intomainfrom
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fix(ci): skip updater signing on PR builds from forks/Dependabot#203tylergraydev wants to merge 2 commits intomainfrom
tylergraydev wants to merge 2 commits intomainfrom
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added 2 commits
April 21, 2026 12:12
PRs from forks (prefrontalsys/*) and Dependabot can't read repo secrets,
so ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }} evaluates to "" and
tauri-action fails with "Missing comment in secret key" after an
otherwise-successful Rust build. The old comment claimed signing only
ran on pushes to main, but the gate was never implemented.
Split the Build Tauri app step by github.event_name:
- pull_request: no signing env vars, --bundles omits the updater target
(per-platform bundle list preserves the existing upload-artifacts
if-no-files-found: error contract).
- push: unchanged behavior -- signed artifacts with the macOS x86_64
app+updater special case intact.
Release workflow untouched since it only runs on tag push.
Previous attempt gated the signing env vars behind github.event_name, but tauri build still fails with "A public key has been found, but no private key" because pubkey in tauri.conf.json triggers the signing check independent of --bundles. Override bundle.createUpdaterArtifacts to false via inline --config JSON for PR builds. Also simplified the per-platform --bundles list -- unnecessary now that createUpdaterArtifacts is off. Kept the macOS x86_64 "--bundles app" quirk to mirror the push step's "--bundles app,updater".
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Summary
Every PR from a fork (Scot Campbell's
prefrontalsys/*) and every Dependabot PR has shown 4/10 red build checks. Root cause is a combination of three things:src-tauri/tauri.conf.jsonhas"createUpdaterArtifacts": trueglobally, so every build tries to sign the updater bundle.build.ymlpassedTAURI_SIGNING_PRIVATE_KEY+..._PASSWORDunconditionally totauri-action. The comment on the old line 119 claimed "Only use signing keys on push to main" but the gate was never implemented.${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}evaluates to""in those contexts.Net effect:
tauri-actiontries to decode""as a minisign secret, minisign rejects it withMissing comment in secret key, and all 4 matrix jobs fail red despite Rust compilation + bundling completing successfully.Evidence:
isCrossRepository: false): builds all green.isCrossRepository: true): builds all red with the signing error.main: green — because secrets are exposed to same-repo push events.Fix
Split
Build Tauri appinto twoif:-gated steps keyed ongithub.event_name:pull_request: no signing env vars;--bundlesexcludes theupdatertarget. Per-platform bundle list (deb,rpm,appimage/nsis,msi/app,dmg) preserves theupload-artifactsif-no-files-found: errorcontract by ensuring a bundle dir is always produced. macOSx86_64-apple-darwinkeeps its existing quirk of emitting onlyapp(dropping theupdaterit used to emit).push: unchanged — same env vars, sameargs, same macOS x86_64app,updaterspecial case.release.ymlis untouched since it only runs on tag push, where secrets are always exposed.Test plan
main(e.g. a version-bump commit after this merges) should still produce signed updater artifacts — verify by checking the build log for "Signing..." lines and the bundle output for.sigfiles.🤖 Generated with Claude Code