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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { StatResponse } from "./stat.ts";
import { build } from "./build.ts";
/** A FileInfo describes a file and is returned by `stat`, `lstat`,
* `statSync`, `lstatSync`. A list of FileInfo is returned by `readDir`,
* `readDirSync`. */
export interface FileInfo {
/** The size of the file, in bytes. */
len: number;
/** The last modification time of the file. This corresponds to the `mtime`
* field from `stat` on Linux/Mac OS and `ftLastWriteTime` on Windows. This
* may not be available on all platforms. */
modified: number | null;
/** The last access time of the file. This corresponds to the `atime`
* field from `stat` on Unix and `ftLastAccessTime` on Windows. This may not
* be available on all platforms. */
accessed: number | null;
/** The last access time of the file. This corresponds to the `birthtime`
* field from `stat` on Mac/BSD and `ftCreationTime` on Windows. This may not
* be available on all platforms. */
created: number | null;
/** The file or directory name. */
name: string | null;
/** ID of the device containing the file.
*
* _Linux/Mac OS only._ */
dev: number | null;
/** Inode number.
*
* _Linux/Mac OS only._ */
ino: number | null;
/** The underlying raw st_mode bits that contain the standard Unix permissions
* for this file/directory. TODO Match behavior with Go on windows for mode.
*/
mode: number | null;
/** Number of hard links pointing to this file.
*
* _Linux/Mac OS only._ */
nlink: number | null;
/** User ID of the owner of this file.
*
* _Linux/Mac OS only._ */
uid: number | null;
/** User ID of the owner of this file.
*
* _Linux/Mac OS only._ */
gid: number | null;
/** Device ID of this file.
*
* _Linux/Mac OS only._ */
rdev: number | null;
/** Blocksize for filesystem I/O.
*
* _Linux/Mac OS only._ */
blksize: number | null;
/** Number of blocks allocated to the file, in 512-byte units.
*
* _Linux/Mac OS only._ */
blocks: number | null;
/** Returns whether this is info for a regular file. This result is mutually
* exclusive to `FileInfo.isDirectory` and `FileInfo.isSymlink`. */
isFile(): boolean;
/** Returns whether this is info for a regular directory. This result is
* mutually exclusive to `FileInfo.isFile` and `FileInfo.isSymlink`. */
isDirectory(): boolean;
/** Returns whether this is info for a symlink. This result is
* mutually exclusive to `FileInfo.isFile` and `FileInfo.isDirectory`. */
isSymlink(): boolean;
}
// @internal
export class FileInfoImpl implements FileInfo {
private readonly _isFile: boolean;
private readonly _isSymlink: boolean;
len: number;
modified: number | null;
accessed: number | null;
created: number | null;
name: string | 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;
/* @internal */
constructor(private _res: StatResponse) {
const isUnix = build.os === "mac" || build.os === "linux";
const modified = this._res.modified;
const accessed = this._res.accessed;
const created = this._res.created;
const name = this._res.name;
// Unix only
const {
dev,
ino,
mode,
nlink,
uid,
gid,
rdev,
blksize,
blocks
} = this._res;
this._isFile = this._res.isFile;
this._isSymlink = this._res.isSymlink;
this.len = this._res.len;
this.modified = modified ? modified : null;
this.accessed = accessed ? accessed : null;
this.created = created ? created : null;
this.name = name ? name : null;
// Only non-null if on Unix
this.dev = isUnix ? dev : null;
this.ino = isUnix ? ino : null;
this.mode = isUnix ? mode : null;
this.nlink = isUnix ? nlink : null;
this.uid = isUnix ? uid : null;
this.gid = isUnix ? gid : null;
this.rdev = isUnix ? rdev : null;
this.blksize = isUnix ? blksize : null;
this.blocks = isUnix ? blocks : null;
}
isFile(): boolean {
return this._isFile;
}
isDirectory(): boolean {
return !this._isFile && !this._isSymlink;
}
isSymlink(): boolean {
return this._isSymlink;
}
}
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