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fix: write-chain-info after u17 (#10110)
_incidental_ ## Description We don't have a good design yet for the schema of Orchestration chain info in agoricNames, - #10109 It's not necessary for upgrade-17 so save it for another proposal. ### Security Considerations none ### Scaling Considerations none ### Documentation Considerations SDK still registers the info so the development experience doesn't differ. ### Testing Considerations Shouldn't break any existing tests. ### Upgrade Considerations Not yet deployed. Should be part of u17-rc1.
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packages/builders/scripts/orchestration/write-chain-info.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| import { makeHelpers } from '@agoric/deploy-script-support'; | ||
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| /** @type {import('@agoric/deploy-script-support/src/externalTypes.js').CoreEvalBuilder} */ | ||
| export const defaultProposalBuilder = async () => | ||
| harden({ | ||
| sourceSpec: '@agoric/orchestration/src/proposals/init-chain-info.js', | ||
| getManifestCall: ['getManifestForChainInfo'], | ||
| }); | ||
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| export default async (homeP, endowments) => { | ||
| const { writeCoreEval } = await makeHelpers(homeP, endowments); | ||
| await writeCoreEval('gov-orchestration', defaultProposalBuilder); | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| import { Fail } from '@endo/errors'; | ||
| import { E, Far } from '@endo/far'; | ||
| import { makeMarshal } from '@endo/marshal'; | ||
| import { makeTracer } from '@agoric/internal'; | ||
| import { registerKnownChains } from '../chain-info.js'; | ||
| import { CHAIN_KEY, CONNECTIONS_KEY } from '../exos/chain-hub.js'; | ||
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| const trace = makeTracer('InitChainInfo', true); | ||
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| /** | ||
| * Similar to publishAgoricNamesToChainStorage but publishes a node per chain | ||
| * instead of one list of entries | ||
| */ | ||
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|
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| /** | ||
| * @param {ERef<import('@agoric/vats').NameHubKit['nameAdmin']>} agoricNamesAdmin | ||
| * @param {ERef<StorageNode | null>} chainStorageP | ||
| */ | ||
| const publishChainInfoToChainStorage = async ( | ||
| agoricNamesAdmin, | ||
| chainStorageP, | ||
| ) => { | ||
| const chainStorage = await chainStorageP; | ||
| if (!chainStorage) { | ||
| console.warn('no chain storage, not registering chain info'); | ||
| return; | ||
| } | ||
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| const agoricNamesNode = await E(chainStorage).makeChildNode('agoricNames'); | ||
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| /** | ||
| * @param {string} subpath | ||
| */ | ||
| const echoNameUpdates = async subpath => { | ||
| const chainNamesNode = E(agoricNamesNode).makeChildNode(subpath); | ||
| const { nameAdmin } = await E(agoricNamesAdmin).provideChild(subpath); | ||
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| /** | ||
| * Previous entries, to prevent redundant updates | ||
| * | ||
| * @type {Record<string, string>} chainName => stringified chainInfo | ||
| */ | ||
| const prev = {}; | ||
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| // XXX cannot be changed until we upgrade vat-agoricNames to allow it | ||
| await E(nameAdmin).onUpdate( | ||
| // XXX will live on the heap in the bootstrap vat. When we upgrade or kill | ||
| // that this handler will sever and vat-agoricNames will need to be upgraded | ||
| // to allow changing the handler, or to use pubsub mechanics instead. | ||
| Far('chain info writer', { | ||
| write(entries) { | ||
| // chainInfo has no cap data but we need to marshal bigints | ||
| const marshalData = makeMarshal(_val => Fail`data only`); | ||
| for (const [chainName, info] of entries) { | ||
| const value = JSON.stringify(marshalData.toCapData(info)); | ||
| if (prev[chainName] === value) { | ||
| continue; | ||
| } | ||
| const chainNode = E(chainNamesNode).makeChildNode(chainName); | ||
| prev[chainName] = value; | ||
| void E(chainNode) | ||
| .setValue(value) | ||
| .catch(() => delete prev[chainName]); | ||
| } | ||
| }, | ||
| }), | ||
| ); | ||
| }; | ||
| await echoNameUpdates(CHAIN_KEY); | ||
| await echoNameUpdates(CONNECTIONS_KEY); | ||
| }; | ||
|
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| /** | ||
| * @param {BootstrapPowers} powers | ||
| */ | ||
| export const initChainInfo = async ({ | ||
| consume: { agoricNamesAdmin, chainStorage: chainStorageP }, | ||
| }) => { | ||
| trace('init-chainInfo'); | ||
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| // First set up callback to write updates to vstorage | ||
| await publishChainInfoToChainStorage(agoricNamesAdmin, chainStorageP); | ||
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| // Now register the names | ||
| await registerKnownChains(agoricNamesAdmin, trace); | ||
| }; | ||
| harden(initChainInfo); | ||
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| export const getManifestForChainInfo = () => ({ | ||
| manifest: { | ||
| [initChainInfo.name]: { | ||
| consume: { | ||
| agoricNamesAdmin: true, | ||
| chainStorage: true, | ||
| }, | ||
| }, | ||
| }, | ||
| }); |
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