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
|
import { existsSync } from "../../fs/mod.ts";
import { fromFileUrl } from "../path.ts";
import { getOpenOptions } from "./_fs_common.ts";
type openFlags =
| "a"
| "ax"
| "a+"
| "ax+"
| "as"
| "as+"
| "r"
| "r+"
| "rs+"
| "w"
| "wx"
| "w+"
| "wx+";
type openCallback = (err: Error | undefined, fd: number) => void;
function convertFlagAndModeToOptions(
flag?: openFlags,
mode?: number,
): Deno.OpenOptions | undefined {
if (!flag && !mode) return undefined;
if (!flag && mode) return { mode };
return { ...getOpenOptions(flag), mode };
}
export function open(path: string | URL, callback: openCallback): void;
export function open(
path: string | URL,
flags: openFlags,
callback: openCallback,
): void;
export function open(
path: string | URL,
flags: openFlags,
mode: number,
callback: openCallback,
): void;
export function open(
path: string | URL,
flagsOrCallback: openCallback | openFlags,
callbackOrMode?: openCallback | number,
maybeCallback?: openCallback,
) {
const flags = typeof flagsOrCallback === "string"
? flagsOrCallback
: undefined;
const callback = typeof flagsOrCallback === "function"
? flagsOrCallback
: typeof callbackOrMode === "function"
? callbackOrMode
: maybeCallback;
const mode = typeof callbackOrMode === "number" ? callbackOrMode : undefined;
path = path instanceof URL ? fromFileUrl(path) : path;
if (!callback) throw new Error("No callback function supplied");
if (["ax", "ax+", "wx", "wx+"].includes(flags || "") && existsSync(path)) {
const err = new Error(`EEXIST: file already exists, open '${path}'`);
callback(err, 0);
} else {
if (flags === "as" || flags === "as+") {
try {
const res = openSync(path, flags, mode);
callback(undefined, res);
} catch (error) {
callback(error, error);
}
return;
}
Deno.open(path, convertFlagAndModeToOptions(flags, mode))
.then((file) => callback(undefined, file.rid))
.catch((err) => callback(err, err));
}
}
export function openSync(path: string | URL): number;
export function openSync(path: string | URL, flags?: openFlags): number;
export function openSync(path: string | URL, mode?: number): number;
export function openSync(
path: string | URL,
flags?: openFlags,
mode?: number,
): number;
export function openSync(
path: string | URL,
flagsOrMode?: openFlags | number,
maybeMode?: number,
) {
const flags = typeof flagsOrMode === "string" ? flagsOrMode : undefined;
const mode = typeof flagsOrMode === "number" ? flagsOrMode : maybeMode;
path = path instanceof URL ? fromFileUrl(path) : path;
if (["ax", "ax+", "wx", "wx+"].includes(flags || "") && existsSync(path)) {
throw new Error(`EEXIST: file already exists, open '${path}'`);
}
return Deno.openSync(path, convertFlagAndModeToOptions(flags, mode)).rid;
}
|
