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Chris Tate
cc75597869
* Shorten the CI critical path * Bound Effect runner memory and avoid repeated type checks
20 lines
845 B
JavaScript
20 lines
845 B
JavaScript
/** Bounded build work that preserves manifest order and drains in-flight
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* compilers before propagating a failure to the staging-directory cleanup. */
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export async function parallelMap(items, width, task) {
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if (!Number.isInteger(width) || width < 1) throw new Error("invalid build concurrency");
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const results = new Array(items.length);
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let next = 0;
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let failed = false;
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const workers = Array.from({ length: Math.min(width, items.length) }, async () => {
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while (!failed && next < items.length) {
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const index = next++;
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try { results[index] = await task(items[index]); }
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catch (error) { failed = true; throw error; }
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}
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});
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const settled = await Promise.allSettled(workers);
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const failure = settled.find((result) => result.status === "rejected");
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if (failure) throw failure.reason;
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return results;
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}
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