Finalize previous-session artifact documentation and restore-analyze continuity coverage

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2026-05-20 15:17:04 +00:00
parent 5be831eb13
commit bc2ade38d9
12 changed files with 369 additions and 155 deletions

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@@ -1,40 +1,49 @@
# Stage: prepare
## Purpose
Materialize all required session inputs into canonical local workspace paths and record input provenance in the session manifest.
Materialize canonical current-session input state and provenance before downstream stages run.
## Inputs and Outputs
Prepare owns:
- local input file materialization (`inputs/**`);
- audio input materialization (`audio/**`);
- previous-session cache hydration (`previous/**`) for canonical previous-session artifact sources.
## Inputs and outputs
Inputs:
- `session.yml` (resolved session config)
- `pipeline.resolved.yml` (materialized from resolved pipeline config)
- `speakers.yml`
- `autocorrect.yml`
- `glossary.yml`
- resolved config/session (`pipeline.yml`, `session.yml`);
- session-local input files (`speakers`, `autocorrect`, `glossary`);
- audio source:
- local (`session.inputs.audio_dir` or `session.inputs.audio_files`), or
- S3 (`session.inputs.audio_s3.prefix`)
- local: `session.inputs.audio_dir` or `session.inputs.audio_files`;
- S3: `session.inputs.audio_s3.prefix`;
- configured enabled Scriptorium artifact inputs (for previous-session requirement scanning);
- remote previous-session current archive state when previous hydration is required.
Outputs:
- `inputs/session.yml`
- `inputs/pipeline.resolved.yml`
- `inputs/speakers.yml`
- `inputs/autocorrect.yml`
- `inputs/glossary.yml`
- `audio/*.flac` in session workdir
- `manifest.Inputs` records with checksums and source metadata
- `inputs/session.yml`;
- `inputs/pipeline.resolved.yml`;
- `inputs/speakers.yml`;
- `inputs/autocorrect.yml`;
- `inputs/glossary.yml`;
- `audio/*.flac` in canonical session `audio/`;
- optional `previous/manifest.json`;
- optional `previous/artifacts/**`;
- deterministic `manifest.Inputs` records with checksums and provenance metadata.
## Boundaries
Owns:
- Input path resolution and validation
- Local copy/materialization of configs and audio files
- S3 audio download to run-scoped spool, then copy into work audio dir
- input path resolution and materialization;
- S3 audio list/download/copy flow;
- previous-session artifact requirement collection from enabled configured artifacts;
- previous cache lifecycle when requirements exist (clear and rehydrate managed `previous/` state).
Does not own:
- Transcript generation/processing
- Archive publish behavior
- transcript or artifact generation;
- analyze-stage source resolution;
- archive commit behavior.
## Config Fields Used
## Config fields used
- `session.session_id`
- `session.previous_session_id`
- `session.campaign`
- `session.inputs.speakers_file`
- `session.inputs.autocorrect_file`
@@ -46,29 +55,56 @@ Does not own:
- `pipeline.spool.root`
- `pipeline.storage.s3.bucket`
- `pipeline.storage.s3.root_prefix`
- `pipeline.scriptorium.artifacts.<name>.enabled`
- `pipeline.scriptorium.artifacts.<name>.inputs.<key>.source`
- `pipeline.scriptorium.artifacts.<name>.inputs.<key>.required`
## External Adapters Used
- Object storage backend (`env.ObjectStore`) for S3 audio list/download when `audio_s3` is configured.
## External adapters used
- `storage.ObjectStore` for:
- S3 audio listing/downloads;
- previous-session current pointer/manifest/artifact object checks and downloads.
## State and Manifest Behavior
## State and manifest behavior
- Ensures workspace layout exists.
- Writes resolved config and input files to canonical `inputs/` paths.
- Records all prepared inputs into `manifest.Inputs` (sorted deterministically by kind/path).
- For S3 audio, records `S3Bucket`, `S3Key`, `S3Size`, `S3ETag`, and `SpoolPath` in each audio input record.
- Materializes canonical input files and audio files.
- Scans enabled configured artifact inputs for canonical sources:
- `narratio.previous_session.artifact.<artifact_key>`
- If one or more canonical previous-session requirements exist:
- clears managed `previous/` state;
- hydrates required/optional previous artifacts from the configured previous sessions committed archive current state;
- writes `previous/manifest.json` and hydrated `previous/artifacts/**`;
- records hydrated previous inputs in `manifest.Inputs` with source `previous_session_archive.current`.
- If no canonical previous-session requirements exist, prepare does not manage `previous/`.
- `manifest.Inputs` is sorted deterministically by `(kind, path)`.
## Skip and Resume Behavior
- Runner-level skip applies when stage already `succeeded` and `--force` is not set.
- Stage itself is deterministic/idempotent for unchanged inputs (`copyFileIfChanged`, `writeBytesIfChanged`).
## Required and optional previous-session behavior
- `previous_session_id` unset:
- if any referenced previous artifact is required: fail;
- if all referenced previous artifacts are optional: continue and omit them.
- Previous session archive current pointer or manifest missing:
- if any referenced previous artifact is required: fail;
- if all referenced previous artifacts are optional: continue and omit missing ones.
- Missing required previous artifact object: fail.
- Missing optional previous artifact object: omit.
- Downloaded previous artifacts must validate as non-empty files.
## Failure Behavior
- Fails on missing required files, invalid audio source combinations, no discoverable `.flac` files, duplicate audio basenames, missing object store for S3 mode, or S3 list/download failures.
## Skip and resume behavior
- Runner-level skip remains authoritative:
- if `prepare` already succeeded and run is not forced, `prepare` does not run and no hydration/download occurs.
- If `prepare` runs (including with `--force`), it owns managed `previous/` state for canonical previous-session inputs.
## Tests to Inspect Before Changing
## Failure behavior
- Fails on missing required input files, invalid audio-source combinations, empty/duplicate audio inputs, missing object store for S3 modes, and remote access/download/validation errors.
- For required canonical previous-session inputs, analyze-time missing-input guidance is to rerun:
- `narratio run-stage --force prepare`
## Tests to inspect before changing
- `internal/stage/prepare_test.go`
- `internal/app/session_cli_test.go`
- `internal/config/load_validate_test.go`
- `internal/stage/prepare_previous_test.go`
- `internal/artifacts/previous_requirements_test.go`
- `internal/app/runner_test.go`
## Architectural Invariants
## Architectural invariants
- `audio_dir`/`audio_files` and `audio_s3` are mutually exclusive.
- Audio files must be `.flac`.
- Canonical `inputs/*` and `audio/*` paths are the durable source for downstream stages.
- Storage keys are computed by callers using archive/path helpers; storage adapter receives explicit keys.
- `prepare` is the only stage that hydrates canonical previous-session cache state.