34 lines
1.2 KiB
TypeScript
34 lines
1.2 KiB
TypeScript
import { readdirSync, readFileSync, statSync } from "node:fs";
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import { createHash } from "node:crypto";
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import { join, relative } from "node:path";
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export type SnapshotEntry = { path: string; sha256: string };
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/**
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* Recursively collect all files under root, sorted by relative path, with
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* sha256 of post-normalized contents (LF line endings, single trailing
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* newline). Used by the byte-identical reconstruction test.
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*/
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export function computeSnapshot(root: string): SnapshotEntry[] {
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const out: SnapshotEntry[] = [];
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walk(root, root, out);
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out.sort((a, b) => (a.path < b.path ? -1 : a.path > b.path ? 1 : 0));
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return out;
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}
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function walk(root: string, dir: string, out: SnapshotEntry[]): void {
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for (const name of readdirSync(dir)) {
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const full = join(dir, name);
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const stat = statSync(full);
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if (stat.isDirectory()) {
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if (name === "node_modules" || name === ".turbo") continue;
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walk(root, full, out);
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} else if (stat.isFile()) {
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const raw = readFileSync(full, "utf8");
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const normalized = raw.replace(/\r\n/g, "\n").replace(/\n*$/, "\n");
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const sha = createHash("sha256").update(normalized).digest("hex");
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out.push({ path: relative(root, full).replace(/\\/g, "/"), sha256: sha });
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}
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}
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}
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