jochen
32d55beb47
mesh/merge-gate pass: builds gitea, mesh-delivery → novox; no bus step; every machine composes with the change as it did without (4 of 4 compose)
mesh/repo-check pass: its merge-check.sh passed, each part in its toolchain: merge-check.sh (go), merge-check-typescript.sh (typescript)
mesh/delivery superseded: a newer delivery to the same trunk took over its walk
The confirmation review asked for the delivery domain's own vocabulary instead of a provider standing. A gitea health check would need a `tools` list (turning gitea's tools into seat verbs), a check of another kind beside it, and would hold the forge's own deliveries at the first-node gate; so the delivery's owner says it, with the word it already has. - gitea_open_pulls (gitea): every open pull request from the forge itself, with what its base requires and the statuses its head has. - mesh-delivery asks it every five minutes and keeps its own first-seen time per head (the forge's update time moves on every comment). A head on a base requiring mesh/merge-gate OR mesh/repo-check (hq requires only the second) with neither for ten minutes is a `stalled` line in state `unannounced`, which the controller raises as delivery.<id>.stalled (D14); H2 has nothing to close. Once announced it is a delivery of its own. - The gitea-side watcher and its provider standing are gone.
98 lines
6.2 KiB
Markdown
98 lines
6.2 KiB
Markdown
# gitea
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The forge, and the mesh's npm package registry: it claims the `git` and `npm-package-registry` seats.
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Its tools, its events and the provisioner of registry accounts are the TypeScript bundle (`index.ts`,
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`tools/`, `provisioner/`). This README covers the Go bundle beside it.
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## Announcing pull requests to the merge check (novox/hq to-be 45 §9, issue 347)
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Every new head of an open pull request is announced as `pull.updated`, once, and the controller has it checked.
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- **Which repositories a pass looks at.** Each that moved since the last pass, less a minute's margin (issue 250);
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each holding a pull request updated since then, found by the forge's own search — opening, reopening or
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retargeting a pull request moves its own update time and not its repository's, and a pull request opened more
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than a minute after its push was never announced (issue 347); and every repository on a sweep, every ten
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minutes, or when the search fails.
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- **A pull request nobody checks is said — by the delivery's owner, not here.** `gitea_open_pulls` answers every
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open pull request from the forge itself, with the statuses its base requires and the ones its head has. The
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`mesh-delivery` module asks it every five minutes, and a head on a base requiring `mesh/merge-gate` or
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`mesh/repo-check` with neither for ten minutes since it first saw it so is a delivery held past its bound
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(`delivery.<id>.stalled`, state `unannounced`), which the controller raises like any other (issue 347).
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- **How to see it work.** A pull request opened more than a minute after its branch was pushed — this fix's own
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was one, and the announcer it fixes never saw it — has `mesh/merge-gate` pending within a pass of the next sweep
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at the latest, and `mesh-controller.conditions` names none for it.
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- **A pull request or issue number that is not one is refused** before the forge is asked: a tool called with a
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misnamed argument sent `pulls/NaN`.
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## The package registry's retention (novox/hq ADR 0251 §4, to-be 51)
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Every publish adds a version to the registry, and until this nothing removed one. The Go bundle
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`cmd/npm-registry` says which versions each package holds, what keeps each one, and — asked with a why —
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deletes the versions nothing keeps.
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| tool | | what |
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|---|---|---|
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| `npm_packages` | r | every package of the registry's owner, each version newest first with its publish time, its size and why it is kept |
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| `npm_retention` | a | the versions retention would delete, and the bytes. **A dry run unless `dry_run` is false**; a real run needs `why` |
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**A version is kept when:**
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- a lockfile on the default branch of any repository on the forge names it — `package-lock.json`
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(every lockfile version), `npm-shrinkwrap.json`, `yarn.lock` (classic and berry) and `pnpm-lock.yaml`
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(by each resolved `name@version` or `name/version`), whatever the version's age;
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- it is the highest published version satisfying a range that a `package.json` there names in its
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dependencies, development, peer or optional dependencies (an `npm:` alias counts for the package it
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stands for; a path, a URL, git or a workspace is not a range on this registry). npm itself installs
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the `latest` dist-tag when it satisfies the range; that version is kept by its dist-tag;
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- a dist-tag names it — and a range that *is* a dist-tag's name keeps that tag's version;
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- it is among the newest `keep` of its package, five by default (the artifact store's five builds,
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ADR 0189 §3), by semantic-version order. **Pre-releases count** among the newest.
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A version that is not a semantic version is never ordered, so it is kept. A range that cannot be read,
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or a package whose dist-tags cannot be read, keeps **every** version of its package, and the answer says
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why under `keeps_all`.
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**Nothing is deleted on partial knowledge.** A repository whose files could not be listed, or a
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manifest or lockfile that could not be fetched, is named under `repositories_unread` in every answer,
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and a real run then deletes nothing at all. A file that was fetched but is not readable (broken JSON) is
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named under `files_not_read`, and so is a lockfile entry of a shape the reader does not know (the rest of
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that file is still read); what it would have named is not known, so a real run then deletes nothing at all
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either. Under `node_modules` nothing is read: that is what a lockfile already says. An empty
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repository, or one without its default branch, holds nothing to read and is not a failure.
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A real run deletes each version through the forge's own interface (`DELETE
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/api/v1/packages/{owner}/npm/{name}/{version}`), says what it deleted and what the forge refused, and a
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version already gone counts as deleted.
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### How it reaches the forge
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Over the forge's HTTP interface on the machine (`MESH_GITEA_URL`), as the admin account the vault
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delivered (`MESH_GITEA_ADMIN_USER`, the password in `MESH_GITEA_ADMIN_PASSWORD_FILE` — the same file
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the TypeScript bundle mints its token with), by basic authentication: this bundle mints no token and
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keeps nothing. The password is read per call and never logged, answered or put in an error. The
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registry's owner is `MESH_NPM_OWNER`, the owner in the seat's `npm-path`.
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Calls to the forge run eight at a time, and one tool call reads for at most 50 seconds, inside a
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module's 60-second ask.
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### Why the manifest lists no `tools`
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The TypeScript bundle's tools are served without a `tools` list, and a claim without `serves` offers
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the module's `tools` as the seat's verbs — so a list here would make these two tools verbs of both the
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`git` and the `npm-package-registry` seats. The two names are kept in `ToolNames`, and a test holds them
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to this README and to what the bundle serves.
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### Tests
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```
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go test ./...
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```
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Against a fake forge (`httptest`): what keeps a version (a lockfile whatever its age, the highest
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version satisfying a range, a dist-tag, the newest `keep`); a dry run deleting nothing; a real run
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without why refused; a real run deleting only what nothing keeps; an unread repository stopping a real
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run before anything is deleted; an unreadable range keeping its whole package; a wrong password failing
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without saying the password. And the range matcher against npm's rules — exact, `^`, `~`, `x` and `*`,
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comparisons with partial versions, hyphen ranges, `||`, and the pre-release rule — and each lockfile
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format.
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