blob: acb56e84b7d4b3aacb35a0c961f114ec179e954d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// TODO(petamoriken): enable prefer-primordials for node polyfills
// deno-lint-ignore-file prefer-primordials
import Dirent from "ext:deno_node/_fs/_fs_dirent.ts";
import { assert } from "ext:deno_node/_util/asserts.ts";
import { ERR_MISSING_ARGS } from "ext:deno_node/internal/errors.ts";
import { TextDecoder } from "ext:deno_web/08_text_encoding.js";
export default class Dir {
#dirPath: string | Uint8Array;
#syncIterator!: Iterator<Deno.DirEntry, undefined> | null;
#asyncIterator!: AsyncIterator<Deno.DirEntry, undefined> | null;
constructor(path: string | Uint8Array) {
if (!path) {
throw new ERR_MISSING_ARGS("path");
}
this.#dirPath = path;
}
get path(): string {
if (this.#dirPath instanceof Uint8Array) {
return new TextDecoder().decode(this.#dirPath);
}
return this.#dirPath;
}
// deno-lint-ignore no-explicit-any
read(callback?: (...args: any[]) => void): Promise<Dirent | null> {
return new Promise((resolve, reject) => {
if (!this.#asyncIterator) {
this.#asyncIterator = Deno.readDir(this.path)[Symbol.asyncIterator]();
}
assert(this.#asyncIterator);
this.#asyncIterator
.next()
.then((iteratorResult) => {
resolve(
iteratorResult.done ? null : new Dirent(iteratorResult.value),
);
if (callback) {
callback(
null,
iteratorResult.done ? null : new Dirent(iteratorResult.value),
);
}
}, (err) => {
if (callback) {
callback(err);
}
reject(err);
});
});
}
readSync(): Dirent | null {
if (!this.#syncIterator) {
this.#syncIterator = Deno.readDirSync(this.path)![Symbol.iterator]();
}
const iteratorResult = this.#syncIterator.next();
if (iteratorResult.done) {
return null;
} else {
return new Dirent(iteratorResult.value);
}
}
/**
* Unlike Node, Deno does not require managing resource ids for reading
* directories, and therefore does not need to close directories when
* finished reading.
*/
// deno-lint-ignore no-explicit-any
close(callback?: (...args: any[]) => void): Promise<void> {
return new Promise((resolve) => {
if (callback) {
callback(null);
}
resolve();
});
}
/**
* Unlike Node, Deno does not require managing resource ids for reading
* directories, and therefore does not need to close directories when
* finished reading
*/
closeSync() {
//No op
}
async *[Symbol.asyncIterator](): AsyncIterableIterator<Dirent> {
try {
while (true) {
const dirent: Dirent | null = await this.read();
if (dirent === null) {
break;
}
yield dirent;
}
} finally {
await this.close();
}
}
}
|
