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
109
110
111
|
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { core, primordials } from "ext:core/mod.js";
const {
Error,
} = primordials;
const {
isTerminal,
} = core;
import { ERR_INVALID_FD } from "ext:deno_node/internal/errors.ts";
import {
kStreamBaseField,
LibuvStreamWrap,
} from "ext:deno_node/internal_binding/stream_wrap.ts";
import { providerType } from "ext:deno_node/internal_binding/async_wrap.ts";
import { Socket } from "node:net";
import { setReadStream } from "ext:deno_node/_process/streams.mjs";
import * as io from "ext:deno_io/12_io.js";
// Returns true when the given numeric fd is associated with a TTY and false otherwise.
function isatty(fd) {
if (typeof fd !== "number") {
return false;
}
try {
/**
* TODO: Treat `fd` as real file descriptors. Currently, `rid` 0, 1, 2
* correspond to `fd` 0, 1, 2 (stdin, stdout, stderr). This may change in
* the future.
*/
return isTerminal(fd);
} catch (_) {
return false;
}
}
class TTY extends LibuvStreamWrap {
constructor(handle) {
super(providerType.TTYWRAP, handle);
}
ref() {
this[kStreamBaseField][io.REF]();
}
unref() {
this[kStreamBaseField][io.UNREF]();
}
}
export class ReadStream extends Socket {
constructor(fd, options) {
if (fd >> 0 !== fd || fd < 0) {
throw new ERR_INVALID_FD(fd);
}
// We only support `stdin`.
if (fd != 0) throw new Error("Only fd 0 is supported.");
const tty = new TTY(io.stdin);
super({
readableHighWaterMark: 0,
handle: tty,
manualStart: true,
...options,
});
this.isRaw = false;
this.isTTY = true;
}
setRawMode(flag) {
flag = !!flag;
this._handle.setRaw(flag);
this.isRaw = flag;
return this;
}
}
setReadStream(ReadStream);
export class WriteStream extends Socket {
constructor(fd) {
if (fd >> 0 !== fd || fd < 0) {
throw new ERR_INVALID_FD(fd);
}
// We only support `stdin`, `stdout` and `stderr`.
if (fd > 2) throw new Error("Only fd 0, 1 and 2 are supported.");
const tty = new TTY(
fd === 0 ? io.stdin : fd === 1 ? io.stdout : io.stderr,
);
super({
readableHighWaterMark: 0,
handle: tty,
manualStart: true,
});
const { columns, rows } = Deno.consoleSize();
this.columns = columns;
this.rows = rows;
this.isTTY = true;
}
}
export { isatty };
export default { isatty, WriteStream, ReadStream };
|
