morluto
735c10059c
Move each error family out of domain/errors.ts into its own module (base, core, provider selection/adapter, browser observation, artifact, evidence, unknown registry, hopper, configuration) and relocate AnalysisErrorProjection to analysisErrorProjection. Migrate all 162 importers to the owning modules and delete errors.ts. No re-export shims; behavior is unchanged.
96 lines
3.2 KiB
TypeScript
96 lines
3.2 KiB
TypeScript
import { link, lstat, mkdtemp, readFile, realpath, rm } from "node:fs/promises";
|
|
import { basename, dirname, resolve } from "node:path";
|
|
|
|
import writeFileAtomic from "write-file-atomic";
|
|
|
|
import { EvidenceFileError } from "../domain/evidenceErrors.js";
|
|
import { err, ok, type Result } from "../domain/result.js";
|
|
|
|
/** Read JSON data from a regular file at the caller-supplied path. */
|
|
export const readJsonFile = async (
|
|
path: string,
|
|
): Promise<Result<unknown, EvidenceFileError>> => {
|
|
try {
|
|
const canonicalPath = await realpath(resolve(path));
|
|
const stats = await lstat(canonicalPath);
|
|
if (!stats.isFile()) return err(new EvidenceFileError("read", "not-file"));
|
|
const encoded = await readFile(canonicalPath);
|
|
let decoded: unknown;
|
|
try {
|
|
decoded = JSON.parse(
|
|
new TextDecoder("utf-8", { fatal: true, ignoreBOM: true }).decode(
|
|
encoded,
|
|
),
|
|
);
|
|
} catch (cause: unknown) {
|
|
return err(new EvidenceFileError("read", "invalid-json", { cause }));
|
|
}
|
|
return ok(decoded);
|
|
} catch (cause: unknown) {
|
|
return err(new EvidenceFileError("read", "io", { cause }));
|
|
}
|
|
};
|
|
|
|
/** Atomically write text to the caller-supplied path. */
|
|
export const writeTextFile = async (
|
|
encoded: string,
|
|
path: string,
|
|
overwrite: boolean,
|
|
): Promise<
|
|
Result<{ readonly path: string; readonly bytes: number }, EvidenceFileError>
|
|
> => {
|
|
const bytes = Buffer.byteLength(encoded, "utf8");
|
|
try {
|
|
const requestedPath = resolve(path);
|
|
const canonicalParent = await realpath(dirname(requestedPath));
|
|
const destination = resolve(canonicalParent, basename(requestedPath));
|
|
const existing = await lstat(destination).catch((cause: unknown) => {
|
|
if (fileErrorCode(cause) === "ENOENT") return undefined;
|
|
throw cause;
|
|
});
|
|
if (existing !== undefined) {
|
|
if (!overwrite) return err(new EvidenceFileError("write", "exists"));
|
|
if (!existing.isFile() || existing.isSymbolicLink())
|
|
return err(new EvidenceFileError("write", "not-file"));
|
|
}
|
|
if (overwrite)
|
|
await writeFileAtomic(destination, encoded, {
|
|
encoding: "utf8",
|
|
mode: 0o600,
|
|
fsync: true,
|
|
});
|
|
else await publishNewFile(destination, encoded);
|
|
return ok({ path: requestedPath, bytes });
|
|
} catch (cause: unknown) {
|
|
if (!overwrite && fileErrorCode(cause) === "EEXIST")
|
|
return err(new EvidenceFileError("write", "exists", { cause }));
|
|
return err(new EvidenceFileError("write", "io", { cause }));
|
|
}
|
|
};
|
|
|
|
const publishNewFile = async (
|
|
destination: string,
|
|
encoded: string,
|
|
): Promise<void> => {
|
|
const stagingDirectory = await mkdtemp(
|
|
resolve(dirname(destination), ".rea-write-"),
|
|
);
|
|
try {
|
|
const staged = resolve(stagingDirectory, "content");
|
|
await writeFileAtomic(staged, encoded, {
|
|
encoding: "utf8",
|
|
mode: 0o600,
|
|
fsync: true,
|
|
});
|
|
// A hard link publishes complete bytes atomically and cannot replace an existing name.
|
|
await link(staged, destination);
|
|
} finally {
|
|
await rm(stagingDirectory, { recursive: true, force: true });
|
|
}
|
|
};
|
|
|
|
const fileErrorCode = (cause: unknown): unknown =>
|
|
typeof cause === "object" && cause !== null && "code" in cause
|
|
? cause.code
|
|
: undefined;
|