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denoland-deno/cli/js/ops/fs/stat.ts

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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { sendSync, sendAsync } from "../dispatch_json.ts";
import { build } from "../../build.ts";
export interface FileInfo {
size: number;
modified: number | null;
accessed: number | null;
created: number | null;
dev: number | null;
ino: number | null;
mode: number | null;
nlink: number | null;
uid: number | null;
gid: number | null;
rdev: number | null;
blksize: number | null;
blocks: number | null;
isFile: boolean;
isDirectory: boolean;
isSymlink: boolean;
}
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export interface StatResponse {
isFile: boolean;
isDirectory: boolean;
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isSymlink: boolean;
size: number;
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modified: number;
accessed: number;
created: number;
// Null for stat(), but exists for readdir().
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name: string | null;
// Unix only members
dev: number;
ino: number;
mode: number;
nlink: number;
uid: number;
gid: number;
rdev: number;
blksize: number;
blocks: number;
}
// @internal
export function parseFileInfo(response: StatResponse): FileInfo {
const isUnix = build.os === "mac" || build.os === "linux";
return {
isFile: response.isFile,
isDirectory: response.isDirectory,
isSymlink: response.isSymlink,
size: response.size,
modified: response.modified ? response.modified : null,
accessed: response.accessed ? response.accessed : null,
created: response.created ? response.created : null,
// Only non-null if on Unix
dev: isUnix ? response.dev : null,
ino: isUnix ? response.ino : null,
mode: isUnix ? response.mode : null,
nlink: isUnix ? response.nlink : null,
uid: isUnix ? response.uid : null,
gid: isUnix ? response.gid : null,
rdev: isUnix ? response.rdev : null,
blksize: isUnix ? response.blksize : null,
blocks: isUnix ? response.blocks : null,
};
}
export async function lstat(path: string): Promise<FileInfo> {
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const res = (await sendAsync("op_stat", {
path,
lstat: true,
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})) as StatResponse;
return parseFileInfo(res);
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}
export function lstatSync(path: string): FileInfo {
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const res = sendSync("op_stat", {
path,
lstat: true,
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}) as StatResponse;
return parseFileInfo(res);
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}
export async function stat(path: string): Promise<FileInfo> {
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const res = (await sendAsync("op_stat", {
path,
lstat: false,
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})) as StatResponse;
return parseFileInfo(res);
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}
export function statSync(path: string): FileInfo {
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const res = sendSync("op_stat", {
path,
lstat: false,
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}) as StatResponse;
return parseFileInfo(res);
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}