jason.woltjeandClaude Opus 5.5
0a9692aebd
Row 82 round 2, owner Rocko, candidate manifest dbf36e92 on 876f1ffe.
Approved by Filbert (27650); Sage's gate green 02:05-02:09Z.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
97 lines
5.8 KiB
Markdown
97 lines
5.8 KiB
Markdown
# Runs
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Read-only readers for the run records under `<dataRoot>/runs/` and the
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release state under `<dataRoot>/state/` (#1545). `scripts/mosaic-task.mjs
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list` and `show` read through it, and so will the console's runs view.
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This README covers what the code does and the limits it accepts.
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```sh
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node --test packages/runs/tests/
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```
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## What it reads
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| Export | Returns |
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|---|---|
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| `listRunIds(dataRoot)` | every name under `runs/` that starts with `r-`, sorted, which is oldest first |
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| `listRunRecords(dataRoot)` | `[{ runId, result }]` for those names; `result` is `null` for an incomplete or unreadable record |
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| `readRunRecord(dataRoot, runId)` | `{ runId, result, task, mission, artifacts }`, or `null` when the run doesn't exist or isn't a directory |
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| `readRunDocument(dataRoot, runId, name)` | `result.json`, `task.json` or `mission.json` from one run, or `null` |
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| `readActivePointer(dataRoot)` | `state/active.json`, or `null` when no release has been activated |
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| `readActivationLog(dataRoot, { last })` | `{ entries, malformed }` from `state/activation-log.jsonl`, oldest first |
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| `isRunId(value)`, `RUN_ID_PATTERN` | the run id shape `mosaic-task.mjs` checks: `r-` then 1 to 64 of `[A-Za-z0-9._-]`, starting with a letter or digit |
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The caller passes `dataRoot`; this package doesn't read the system
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config. `artifacts` are names in directory order, as `show` has always
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printed them.
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## Limits
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- **Nothing writes.** No reader creates, changes, prunes or locks
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anything. Run records stay write-once evidence; pruning stays in
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`mosaic-task.mjs prune`.
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- **Nothing follows a link out of the data root.** The configured data
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root is trusted as given, even when it is itself a link. Every path
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below it is resolved, and one that resolves outside it is refused or
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read as unreadable:
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- `runs/` or `state/` resolving outside refuses with a `RunsError`;
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- a run directory resolving outside: `readRunRecord` refuses, and
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`listRunRecords` gives that run a `null` result;
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- a run document resolving outside reads as `null`;
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- `active.json` or `activation-log.jsonl` resolving outside refuses.
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Only a path that exists can resolve. A link with nothing behind it reads
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as missing wherever it points. A `state/` link out of the data root to a
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path that doesn't exist reads as no release and an empty log, and a
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`runs/` link like that lists nothing. A link that stays inside the data
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root is followed.
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- **Run documents are JSON objects or `null`.** A document that is
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missing, unreadable, not JSON, or JSON but not an object (`null`, `5`,
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`[]`) reads as `null`. Run records are never validated beyond that,
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because older records carry older shapes.
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- **The release pointer is strict.** `active.json` must be the version 1
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shape `scripts/release.sh` writes: exactly `pointerVersion` 1 and
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non-empty strings `release`, `imageTag` and `activatedAt`. Anything else
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refuses with exit code 2 rather than being guessed at.
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- **The activation log is read per line.** One bad line never refuses
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the log. An entry needs string `at`, `event`, `release` and `imageTag`,
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an optional string `note`, and no other keys. A line that isn't JSON,
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or is JSON with another shape, is counted in `malformed` and skipped.
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That is stricter than `release.sh rollback`, which skips only lines that
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aren't JSON and would act on an entry with an extra key or a non-string
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field. Blank lines aren't counted. `last` must be a positive integer and
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keeps the newest entries.
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- **Errors.** Every refusal is a `RunsError` with `exitCode` 2 (invalid
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data) or 4 (a file or environment problem), matching
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`mosaic-task.mjs`. A missing data root, `runs/` or `state/` file is not
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an error. A path that can't be resolved for another reason (a link
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loop, a permission error) or a directory that can't be read refuses
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instead of reading as empty.
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## How mosaic-task.mjs uses it
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`list` and `show` print exactly what they printed before this package
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existed, for any data root with no link out of it, no run document that
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is JSON but not an object, no `result.json` with a field of the wrong
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type (a `status` or `taskId` that isn't a string, or a `workspace` or
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`session` that is neither a string nor `null`), and no unreadable
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directory.
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`agents/rocko/work/queue-56/byte-check.sh` checks that byte for byte
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against a seeded data root. Where those conditions don't hold, the
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output changes on purpose:
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| Case | Before | Now |
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|---|---|---|
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| run directory or `result.json` linked out | read through the link | `list`: `unknown`; `show`: refuses (run directory) or `result.json: (missing or unreadable)` |
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| `runs/` linked out | read through the link | `list` and `show` refuse, exit 4 |
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| `result.json` is `5` or `[]` | `list` crashed; `show` printed `undefined` fields | `unknown`; `(missing or unreadable)` |
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| `result.json` is an object whose `status` or `taskId` isn't a string, or whose `workspace` or `session` is neither a string nor `null` (`{}`, a numeric `status`, a `null` `taskId`) | `list` crashed on a `status` or `taskId` that isn't a string, hiding every run after it, and printed a `workspace` or `session` that is neither a string nor `null` through `String` | `list`: `unknown` for the status, `-` for each other field, and every later run still lists; `show` as before |
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| `task.json` or `mission.json` is JSON but not an object | `show` printed its snapshot line | snapshot line omitted |
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| run is a regular file | `show` crashed | `run not found`, exit 4 |
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| `runs/` unreadable | `list` printed nothing | refuses, exit 4 |
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| run directory unreadable (mode 000) | `show` printed two lines, then crashed, exit 1 | refuses with EACCES, exit 4 |
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| link loop or a permission error resolving a run | `run not found` | refuses with the error code, exit 4 |
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`agents/rocko/work/queue-56/delta-check.sh` prints the before and after
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for each case.
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