67 lines
3.0 KiB
Markdown
67 lines
3.0 KiB
Markdown
# pipelines/songs
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Publishes lyric pages from `mikkeli/ncmr-songs` to `https://wiki.novoyuuparosk.org`.
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For the source-file contract (frontmatter and body conventions), see [SCHEMA.md](SCHEMA.md). This README covers the pipeline implementation and its runtime.
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## v1 scope
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Implemented:
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- YAML frontmatter parsing per [SCHEMA.md](SCHEMA.md)
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- Pandoc-based markdown → wikitext body rendering
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- First-line h1 stripping
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- Auto-generated banner + album category injection
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- MediaWiki bot API write with idempotency (no-op edits skipped)
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Deferred (schema reserves the fields; renderer doesn't yet act on them):
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- LRC parsing and embedding
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- Inter-page sibling placeholder resolution
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- Multi-language metadata (the body conveys what languages exist; renderer doesn't introspect)
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- Auto-generated album index pages (intentionally NOT done — user writes album category-page descriptions freeform)
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## Invocation
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The pipeline is invoked via a reusable Gitea Actions workflow (`/.gitea/workflows/publish-songs.yml` in this repo). The `ncmr-songs` repo holds a thin stub workflow that calls into this one on push to `master`.
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Required environment at runtime:
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| Variable | Source | Purpose |
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|---|---|---|
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| `WIKI_API_URL` | Gitea variable | MediaWiki action API endpoint |
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| `WIKI_BASE_URL` | Gitea variable | Wiki base URL (used in the banner link) |
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| `WIKI_BOT_USER` | Gitea secret | Bot login (`Dubrowski@giteaAutomaton`) |
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| `WIKI_BOT_PASSWORD` | Gitea secret | BotPasswords value |
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| `SOURCE_DIR` | workflow input | Path to checked-out `ncmr-songs` working tree |
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| `SOURCE_REF` | workflow input | The pushed-to commit SHA |
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| `SOURCE_BASE_REF` | workflow input | The SHA prior to the push (for diff-based change detection) |
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## Dependencies
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- Python 3.12+
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- Pandoc 2.x or newer (apt-installable in the runner container)
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- `mwclient` or `requests` for the MediaWiki API
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- `PyYAML` for frontmatter parsing
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- `python-frontmatter` (convenience wrapper around PyYAML for markdown frontmatter)
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`requirements.txt` will be added when the implementation lands.
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## One-off wiki setup
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Before the first run, two things must exist on the wiki:
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1. **`Template:Auto-generated`** — the banner injected at the top of every auto-published page. Wikitext for this template is included in the implementation step (not yet written).
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2. **The bot user has edit rights** for the namespace(s) the pipeline writes to. The default main namespace is fine; verify by attempting a manual edit via the bot account before relying on the pipeline.
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## Modes
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The pipeline supports two invocation modes via the entry point:
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- **Incremental** (default, triggered by push): publishes only files changed between `SOURCE_BASE_REF` and `SOURCE_REF`.
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- **Full** (`--all` flag, triggered by `workflow_dispatch`): re-publishes every publishable file in the source tree. Use after template or renderer changes.
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## Not yet implemented
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This README will grow as the pipeline does. Current commit ships only the schema and this overview — no executable code yet.
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