wehub-resource-sync
61 lines
2.1 KiB
TypeScript
61 lines
2.1 KiB
TypeScript
import fs from 'node:fs/promises';
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import path from 'node:path';
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const swiftSystemAtResolveBeneathGuard = '#if canImport(Darwin, _version: 346) || os(FreeBSD)';
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const swiftSystemFreeBsdOnlyGuard = '#if os(FreeBSD)';
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// swift-system 1.7.x exposes AT_RESOLVE_BENEATH on Darwin when compiling with
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// Swift 6.2, but GitHub's macOS SDK currently omits the C constant.
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const swiftSystemAtResolveBeneathFiles = [
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'Sources/System/Internals/Constants.swift',
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'Sources/System/FileSystem/Stat.swift',
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] as const;
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const countOccurrences = (source: string, pattern: string): number =>
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source.split(pattern).length - 1;
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export const patchSwiftSystemAtResolveBeneathGuardInSource = (
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source: string,
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filePath: string
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): { source: string; replacementCount: number } => {
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const replacementCount = countOccurrences(source, swiftSystemAtResolveBeneathGuard);
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if (replacementCount > 0) {
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return {
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source: source.replaceAll(swiftSystemAtResolveBeneathGuard, swiftSystemFreeBsdOnlyGuard),
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replacementCount,
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};
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}
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if (source.includes(swiftSystemFreeBsdOnlyGuard) && source.includes('AT_RESOLVE_BENEATH')) {
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return { source, replacementCount: 0 };
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}
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throw new Error(`Unable to patch swift-system AT_RESOLVE_BENEATH guard in ${filePath}`);
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};
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export const patchSwiftSystemAtResolveBeneathGuard = async (
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checkoutRoot: string,
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exists: (filePath: string) => Promise<boolean>
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): Promise<number> => {
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let replacementCount = 0;
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for (const filePath of swiftSystemAtResolveBeneathFiles) {
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const sourcePath = path.join(checkoutRoot, filePath);
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if (!(await exists(sourcePath))) {
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throw new Error(
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`Swift package resolution completed but swift-system ${filePath} was not found.`
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);
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}
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const source = await fs.readFile(sourcePath, 'utf8');
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const patched = patchSwiftSystemAtResolveBeneathGuardInSource(source, filePath);
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if (patched.replacementCount === 0) continue;
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await fs.chmod(sourcePath, 0o644).catch(() => undefined);
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await fs.writeFile(sourcePath, patched.source, 'utf8');
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replacementCount += patched.replacementCount;
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}
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return replacementCount;
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};
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