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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -12,7 +12,8 @@ | |
| "doctor": "yarn synthetic-chain doctor" | ||
| }, | ||
| "dependencies": { | ||
| "@agoric/synthetic-chain": "^0.0.10" | ||
| "@agoric/synthetic-chain": "^0.0.10", | ||
| "@types/better-sqlite3": "^7.6.9" | ||
| }, | ||
| "packageManager": "[email protected]", | ||
| "license": "Apache-2.0" | ||
|
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a3p-integration/proposals/a:upgrade-next/priceFeed-follower-auction.test.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| import test from 'ava'; | ||
| import { getDetailsMatchingVats } from './vatDetails.js'; | ||
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| test('new auction vat', async t => { | ||
| const details = await getDetailsMatchingVats('auctioneer'); | ||
| // This query matches both the auction and its governor, so 2*2 | ||
| t.is(Object.keys(details).length, 4); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| import dbOpenAmbient from 'better-sqlite3'; | ||
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| const HOME = process.env.HOME; | ||
|
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| /** @type {<T>(val: T | undefined) => T} */ | ||
| export const NonNullish = val => { | ||
| if (!val) throw Error('required'); | ||
| return val; | ||
| }; | ||
|
|
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| /** | ||
| * @file look up vat incarnation from kernel DB | ||
| * @see {getIncarnation} | ||
| */ | ||
|
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| const swingstorePath = `${HOME}/.agoric/data/agoric/swingstore.sqlite`; | ||
|
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| /** | ||
| * SQL short-hand | ||
| * | ||
| * @param {import('better-sqlite3').Database} db | ||
| */ | ||
| export const dbTool = db => { | ||
| const prepare = (strings, ...params) => { | ||
| const dml = strings.join('?'); | ||
| return { stmt: db.prepare(dml), params }; | ||
| }; | ||
| const sql = (strings, ...args) => { | ||
| const { stmt, params } = prepare(strings, ...args); | ||
| return stmt.all(...params); | ||
| }; | ||
| sql.get = (strings, ...args) => { | ||
| const { stmt, params } = prepare(strings, ...args); | ||
| return stmt.get(...params); | ||
| }; | ||
| return sql; | ||
| }; | ||
|
|
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| /** | ||
| * @param {import('better-sqlite3').Database} db | ||
| */ | ||
| const makeSwingstore = db => { | ||
| const sql = dbTool(db); | ||
|
|
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| /** @param {string} key */ | ||
| const kvGet = key => sql.get`select * from kvStore where key = ${key}`.value; | ||
| /** @param {string} key */ | ||
| const kvGetJSON = key => JSON.parse(kvGet(key)); | ||
|
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| /** @param {string} vatID */ | ||
| const lookupVat = vatID => { | ||
| return Object.freeze({ | ||
| source: () => kvGetJSON(`${vatID}.source`), | ||
| options: () => kvGetJSON(`${vatID}.options`), | ||
| currentSpan: () => | ||
| sql.get`select * from transcriptSpans where isCurrent = 1 and vatID = ${vatID}`, | ||
| }); | ||
| }; | ||
|
|
||
| return Object.freeze({ | ||
| /** @param {string} vatName */ | ||
| findVat: vatName => { | ||
| /** @type {string[]} */ | ||
| const dynamicIDs = kvGetJSON('vat.dynamicIDs'); | ||
| const targetVat = dynamicIDs.find(vatID => | ||
| lookupVat(vatID).options().name.includes(vatName), | ||
| ); | ||
| if (!targetVat) throw Error(`vat not found: ${vatName}`); | ||
| return targetVat; | ||
| }, | ||
| /** @param {string} vatName */ | ||
| findVats: vatName => { | ||
| /** @type {string[]} */ | ||
| const dynamicIDs = kvGetJSON('vat.dynamicIDs'); | ||
| return dynamicIDs.filter(vatID => | ||
| lookupVat(vatID).options().name.includes(vatName), | ||
| ); | ||
| }, | ||
| lookupVat, | ||
| }); | ||
| }; | ||
|
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| /** @param {string} vatName */ | ||
| export const getDetailsMatchingVats = async vatName => { | ||
| const kStore = makeSwingstore( | ||
| dbOpenAmbient(swingstorePath, { readonly: true }), | ||
| ); | ||
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| const vatIDs = kStore.findVats(vatName); | ||
| const infos = []; | ||
| for (const vatID of vatIDs) { | ||
| const vatInfo = kStore.lookupVat(vatID); | ||
| const source = vatInfo.source(); | ||
| // @ts-expect-error cast | ||
| const { incarnation } = vatInfo.currentSpan(); | ||
| infos.push({ vatName, vatID, incarnation, ...source }); | ||
| } | ||
|
|
||
| return infos; | ||
| }; |
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