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Chore: migrate fileEqual to use foxts util

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SukkaW
2025-05-13 18:32:51 +08:00
parent 3e277a62fc
commit 8722cd5755
3 changed files with 20 additions and 91 deletions
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75
Build/lib/create-file.ts
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@@ -5,80 +5,9 @@ import picocolors from 'picocolors';
import type { Span } from '../trace';
import { readFileByLine } from './fetch-text-by-line';
import { writeFile } from './misc';
import { invariant } from 'foxts/guard';
import { createCompareSource, fileEqualWithCommentComparator } from 'foxts/compare-source';
export async function fileEqual(linesA: string[], source: AsyncIterable<string> | Iterable<string>): Promise<boolean> {
if (linesA.length === 0) {
return false;
}
const aLen = linesA.length;
const maxIndexA = aLen - 1;
let index = -1;
const iterator = Symbol.asyncIterator in source
? source[Symbol.asyncIterator]()
: (
Symbol.iterator in source
? source[Symbol.iterator]()
: null
);
invariant(iterator, 'source must be iterable or async iterable');
let result = await iterator.next();
let lineB: string = result.value;
while (!result.done) {
index++;
// b become bigger
if (index === aLen) {
return false;
}
const lineA = linesA[index];
if (lineA.length === 0) {
if (lineB.length === 0) {
// eslint-disable-next-line no-await-in-loop -- sequential
result = await iterator.next();
lineB = result.value;
continue;
}
return false;
}
const aFirstChar = lineA.charCodeAt(0);
if (aFirstChar !== lineB.charCodeAt(0)) {
return false;
}
// Now both line has the same first char
// We only need to compare one of them
if (
aFirstChar === 35 // #
|| aFirstChar === 33 // !
) {
// eslint-disable-next-line no-await-in-loop -- sequential
result = await iterator.next();
lineB = result.value;
continue;
}
if (lineA !== lineB) {
return false;
}
// eslint-disable-next-line no-await-in-loop -- sequential
result = await iterator.next();
lineB = result.value;
}
// b is not smaller than a
return index === maxIndexA;
}
export const fileEqual = createCompareSource(fileEqualWithCommentComparator);
export async function compareAndWriteFile(span: Span, linesA: string[], filePath: string) {
const isEqual = await span.traceChildAsync(`compare ${filePath}`, async () => {