feat(workflows): add reusable _update-flake-input workflow#20
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Reusable workflow_call target for bumping a single flake input and opening a squash-mergeable PR. Consumers (nix-ai, nix-darwin) call it via repository_dispatch when an upstream dryvist repo releases. - Inputs: input_name (required), runner_label (optional, RunsOn default) - Uses app token for push + PR creation; DeterminateSystems Nix action - No-op if flake.lock is unchanged; auto-merge enabled on created PR - input_name is channelled through env vars in run: steps to prevent shell injection from attacker-controlled client_payload fields Assisted-by: Claude:claude-opus-4-8
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Summary
Adds
_update-flake-input.yml— a reusableworkflow_calltarget that bumps a single flake input and opens a squash-mergeable PR in the calling repo.Part of the event-driven lock-propagation chain:
nix-claude-coderelease → dispatch →nix-ai→ dispatch →nix-darwin. This workflow is the shared implementation that both consumer repos call; the per-repo wiring (dispatch receivers) lands in separate PRs in each repo.Changes
.github/workflows/_update-flake-input.yml(new, reusable)workflow_callinputs:input_name(required),runner_label(optional)GH_APP_CLIENT_IDvar +GH_APP_PRIVATE_KEYsecret)DeterminateSystems/determinate-nix-actionfor Nix installnix flake update <input>→ no-op if unchanged, otherwisepeter-evans/create-pull-request+ auto-mergeinput_namereferences inrun:steps go through env vars (injection guard)Test plan
gh workflow run update-flake-input.yml --repo dryvist/nix-ai -f input_name=nix-claude-codecreates a lock-bump PR in nix-ai🤖 Generated with Claude Code