27 lines
738 B
TypeScript
27 lines
738 B
TypeScript
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import { resolve } from "node:path";
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const activeTransactions = new Map<string, Promise<void>>();
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/**
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* Serialize the full read/merge/publish operation for one resolved
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* configuration path.
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*/
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export const withClientConfigurationTransaction = async <Value>(
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path: string,
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operation: () => Promise<Value>,
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): Promise<Value> => {
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const key = resolve(path);
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const previous = activeTransactions.get(key);
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let release!: () => void;
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const current = new Promise<void>((complete) => {
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release = complete;
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});
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activeTransactions.set(key, current);
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await previous;
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try {
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return await operation();
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} finally {
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release();
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if (activeTransactions.get(key) === current) activeTransactions.delete(key);
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}
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};
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