feat(ci): Fetch quarantines from the list endpoint in junit-process

[remyduthu]

POST /quarantines/check is superseded by the paginated
GET /quarantines?branch=… list endpoint, which the
mergify-ci-integrations clients already use. Align ci junit-process
with them: page through the branch's quarantines, and treat a 402
(quarantine not in the plan) as nothing quarantined instead of
reporting an error and blocking every failure.

Co-Authored-By: Claude Opus 5.5 (1M context) noreply@anthropic.com

[mergify]

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Copilot review overview

🟡 Changes recommended

The generalized ignored-status handling can bypass mandatory retries and conceal server or rate-limit failures.

Review effort: Balanced
Findings: 1

Open (1)

• Avoid treating retryable statuses as absent before retry classification · New

What changed in this PR

Updates JUnit quarantine evaluation to use the paginated quarantine list endpoint and handle unavailable-plan responses gracefully.

Changes:

• Adds paginated GET support with configurable ignored status.
• Fetches all branch quarantines and treats HTTP 402 as an empty quarantine.
• Updates categorization, command behavior, and tests for the new response model.

File	Description
crates/​mergify-core/​src/​http.rs	Adds optional-status paginated requests.
crates/​mergify-ci/​src/​tests_quarantine.rs	Shares the quarantine response envelope.
crates/​mergify-ci/​src/​junit_process/​quarantine.rs	Implements paginated quarantine fetching and categorization.
crates/​mergify-ci/​src/​junit_process/​mod.rs	Removes the obsolete public type export.
crates/​mergify-ci/​src/​junit_process/​command.rs	Adapts verdict logic and mocks to the list endpoint.

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[remyduthu]

Revision history

#	Type	Changes	Reason	Date
1	initial	0c70c26		2026-10-01 17:22 UTC
2	content	0c70c26 → 82def28	Keep retries for 5xx and rate limits when get_page_unless names that status.	2026-10-01 17:22 UTC

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-10-01 22:03 UTC · Rule: default · triggered by merge protections
• ✅ Checks skipped · PR is already up-to-date
• ✅ Merged — 2026-10-01 22:03 UTC · at b24e8f2aa67dfceff9401b39450fb7bb91f5573e · squash

This pull request spent 14 seconds in the queue, including 1 second running CI.

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