A project's trust.merge is operator (the default) or approved (L3, D5, #65). Set to approved, the harness, never the model, merges a PR in the PR watch once an approving review from a gitea.operators account is on its current commit, its checks pass (none at all counts; pending waits) and it's mergeable; the item then goes on as after any merge. Each reason to hold off (failed checks, conflicts, a refused merge) is said once per commit. Gitea enforces it: protection requires approvals from an operators-only whitelist and dismisses stale ones. At start, for each approved project, the agent checks by behaviour that its own unapproved merge is refused, with a throwaway branch and PR made through the API (never the workspace); if it isn't refused, the operator merges until a restart. - gitea: approvals, combined check status, a PR's head commit and mergeability, API-made branches and their deletion. - Test and bring-up repositories get the protection. - Tests: the decision (unit), the hard wall on a real Gitea (test_trust_live), an e2e test where the operator only approves, and a walk property, merges_only_approved, checked against a mutant that ignores which commit was approved. Closes #65 Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PPQ14L3LikyefCMFBqEbKE
76 lines
2.8 KiB
Python
76 lines
2.8 KiB
Python
"""The trust dial's hard wall, on a real Gitea (D4, D5; M3.3): with the
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protection a `merge: approved` project has, the agent's own token can't
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merge its PR until an operator approves the PR as it is now; it can then;
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and a commit pushed after the approval needs approving again."""
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import base64
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import uuid
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from pathlib import Path
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import pytest
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from e2e_support import fresh_repo, operator_gitea
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from nisse_dev.config import AgentConfig
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from nisse_dev.gitea import GiteaClient, GiteaError
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pytestmark = pytest.mark.integration
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def add_file(gitea: GiteaClient, repo: str, branch: str, path: str) -> None:
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gitea._request(
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"POST",
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f"/repos/{repo}/contents/{path}",
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json={
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"content": base64.b64encode(f"{path}\n".encode()).decode(),
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"message": f"add {path}",
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"branch": branch,
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},
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)
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def approve(operator: GiteaClient, repo: str, pr: int) -> None:
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operator._request(
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"POST", f"/repos/{repo}/pulls/{pr}/reviews", json={"event": "APPROVED"}
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)
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def test_merging_needs_the_operators_approval_of_the_pr_as_it_is(
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tmp_path: Path, live_config: AgentConfig, gitea: GiteaClient
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) -> None:
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operator = operator_gitea(live_config.gitea_url)
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run = uuid.uuid4().hex[:8]
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with fresh_repo(operator, run, tmp_path / "keys", agent=gitea.whoami()) as repo:
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name = repo.name
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# The agent's PR, its branch made through the API.
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gitea.branch_with_file(
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name, base="main", branch="m-1", path="a.txt", text="a\n", message="a"
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)
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pr = gitea.open_pull_request(name, head="m-1", base="main", title="a", body="")
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with pytest.raises(GiteaError):
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gitea.merge_pull_request(name, pr.number) # no approval yet
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approve(operator, name, pr.number)
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[approval] = gitea.approvals(name, pr.number)
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head = gitea.pull_request(name, pr.number).head_sha
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assert (approval.author, approval.commit) == (operator.whoami(), head)
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gitea.merge_pull_request(name, pr.number) # approved: the agent may
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assert gitea.pull_request(name, pr.number).merged
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# Approved, then changed: the approval no longer stands.
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gitea.branch_with_file(
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name, base="main", branch="m-2", path="b.txt", text="b\n", message="b"
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)
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second = gitea.open_pull_request(
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name, head="m-2", base="main", title="b", body=""
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)
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approve(operator, name, second.number)
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add_file(gitea, name, "m-2", "c.txt") # a fix pushed after the approval
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after = gitea.pull_request(name, second.number).head_sha
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assert not [
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a
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for a in gitea.approvals(name, second.number)
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if a.commit == after and not a.stale
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]
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with pytest.raises(GiteaError):
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gitea.merge_pull_request(name, second.number)
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