andras/vault-link
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no power loss

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This commit is contained in:
Andras Schmelczer 2026-09-21 21:29:56 +01:00
commit 2fcdbfd27d
1 changed files with 1374 additions and 3676 deletions
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52
frontend/test-support/real-disk.ts
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@ -4,7 +4,6 @@ import * as path from "node:path";
import { constants } from "node:fs";
import { execFile } from "node:child_process";
import { promisify } from "node:util";
import { randomUUID } from "node:crypto";
import type { FileSystemOperations, FileSnapshot } from "sync-client";
const exec = promisify(execFile);
@ -52,17 +51,6 @@ export class RealDisk implements FileSystemOperations {
throw error;
}
}
private async flush(absolute: string): Promise<void> {
const handle = await fs.open(
absolute,
constants.O_RDONLY | constants.O_NOFOLLOW
);
try {
await handle.sync();
} finally {
await handle.close();
}
}
public async stat(relative: string) {
const info = await this.info(await this.resolve(relative));
return info
@ -140,8 +128,6 @@ export class RealDisk implements FileSystemOperations {
throw error;
}
assert((await fs.lstat(next)).isDirectory());
await this.flush(next);
await this.flush(current);
current = next;
}
}
@ -154,44 +140,16 @@ export class RealDisk implements FileSystemOperations {
"This disk-only fixture has no editor selections"
);
const destination = await this.resolve(relative);
const staging = ".vault-link-sync/adapter-staging";
await this.createDirectory(staging);
const source = path.join(this.root, staging, randomUUID());
const handle = await fs.open(source, "wx", 0o600);
try {
await handle.writeFile(snapshot.content);
await handle.sync();
} finally {
await handle.close();
}
try {
await exec(this.helper, ["rename", source, destination]);
await this.flush(path.dirname(source));
await this.flush(path.dirname(destination));
} finally {
await fs.unlink(source).catch((error: NodeJS.ErrnoException) => {
if (error.code !== "ENOENT") throw error;
});
}
await fs.writeFile(destination, snapshot.content, {
flag: "wx",
mode: 0o600
});
}
public async rename(from: string, to: string): Promise<void> {
const source = await this.resolve(from),
destination = await this.resolve(to);
assert((await this.info(source))?.isFile());
await this.flush(source);
await exec(this.helper, ["rename", source, destination]);
await this.flush(path.dirname(source));
await this.flush(path.dirname(destination));
}
public async flushPaths(paths: readonly string[]): Promise<void> {
for (const relative of paths) {
let absolute = await this.resolve(relative);
for (;;) {
if (await this.info(absolute)) await this.flush(absolute);
if (absolute === this.root) break;
absolute = path.dirname(absolute);
}
}
}
public async delete(relative: string): Promise<void> {
assert(relative, "Cannot prune root");
@ -202,7 +160,6 @@ export class RealDisk implements FileSystemOperations {
for (const child of await fs.readdir(absolute))
await this.delete(`${relative}/${child}`);
await fs.rmdir(absolute);
await this.flush(path.dirname(absolute));
}
public async deleteFile(relative: string): Promise<void> {
const absolute = await this.resolve(relative);
@ -210,6 +167,5 @@ export class RealDisk implements FileSystemOperations {
if (!entry) return;
assert(entry.isFile() && entry.nlink === 1, "Cannot unlink non-file");
await fs.unlink(absolute);
await this.flush(path.dirname(absolute));
}
}