# pipelines/tech

Publishes tech blog posts from `novoyuuparosk-wiki/tech-blogs` to `https://wiki.novoyuuparosk.org`.

- Source-file contract (frontmatter and body conventions): [SCHEMA.md](SCHEMA.md)
- Cross-cutting setup (wiki URL, bot identity, runner, Gitea secrets/variables): [repo root README](../../README.md)

## What the renderer does

- YAML frontmatter parsing per [SCHEMA.md](SCHEMA.md)
- Pandoc-based markdown → wikitext body rendering (h1 elements preserved)
- Auto-generated banner (`{{Auto-generated|source=...|commit=<sha>}}`)
- Category injection: `[[Category:Tech blog]]` on every page; `[[Category:Blog:<year>]]` from `date` field (falling back to the action's execution year); `[[Category:<tag>]]` per tag entry
- No title prefix — pages live at their bare title
- MediaWiki bot API write with idempotency — no-op if wiki content matches generated output
- Files without `wiki.publish: true` silently skipped
- Pages with existing non-auto-generated content skipped (logged to stderr)

## Source repo

Source repo: `novoyuuparosk-wiki/tech-blogs`, triggering on push to `master`, with `workflow_dispatch` for manual runs.

No branch convention enforced. There is no `wip/` exclusion — `wiki.publish: true` is the only publishing gate.

**Excluded paths** (won't trigger the pipeline):

- `README.md`, `.gitignore`, `.claude/**`

## Invocation

`novoyuuparosk-wiki/tech-blogs/.gitea/workflows/publish.yml` is a thin caller: it triggers, then `uses:` [`publish-tech.yml`](../../.gitea/workflows/publish-tech.yml) here, which clones both repos and runs `publish.py`.

Editing `publish-tech.yml` requires a runner cache flush before it takes effect; the renderer itself is cloned fresh every run. See *Callee workflow cache* in the [root README](../../README.md).

Triggers:
- `push` to `master` (path-filtered as above)
- `workflow_dispatch` — manual trigger from the Gitea Actions UI

### Publish scope

Every run publishes every file with `wiki.publish: true`; there is no diff detection. Writes are idempotent — the banner carries the commit SHA rather than a timestamp, so a re-run at the same commit rewrites nothing.

### Environment (secrets and variables)

| Name | Kind | Source | Purpose |
|---|---|---|---|
| `WIKI_API_URL` | variable | Gitea (cross-cutting) | MediaWiki action API endpoint |
| `WIKI_BASE_URL` | variable | Gitea (cross-cutting) | Wiki base URL |
| `WIKI_BOT_USER` | secret | Gitea (cross-cutting) | Bot login |
| `WIKI_BOT_PASSWORD` | secret | Gitea (cross-cutting) | BotPasswords value |
| `URL_TO_GITEA` | variable | Gitea (cross-cutting) | Runner-internal Gitea base URL, for cloning only |
| `PUBLIC_URL_TO_GITEA` | variable | Gitea (cross-cutting) | Public Gitea base URL, for the banner source link only |
| `FAPAT` | secret | Gitea (cross-cutting) | Full-Access PAT for cloning private repos |
| `SOURCE_REF` | env (set in workflow) | `github.sha` | Pushed commit SHA, used in banner and edit summary |
| `GITEA_REPO_URL` | env (set in workflow) | `PUBLIC_URL_TO_GITEA` + repo path | Source-file URL base for the banner link. Validated by `public_source_base()`: a loopback, mDNS or private-range host aborts the run rather than publishing an unreachable link |

## Dependencies

Job container image and its build are described in the [root README](../../README.md#job-container-image). Python packages for this pipeline are in `requirements.txt` here; changing it triggers an image rebuild. Shared render and MediaWiki helpers live in `lib/wiki.py` at the repo root.

## Wiki-side prerequisites

**`Template:Auto-generated`** must exist on the wiki. It is shared across all three pipelines; the wikitext source lives in [`pipelines/songs/template_auto_generated.wikitext`](../songs/template_auto_generated.wikitext).