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Make everything use active evals (#30)

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* Add trace log level

* Use active eval to implement spdlog

* Split server/client active eval interfaces

Since all properties are *not* valid on both sides

* +200% fire resistance

* Implement exec using active evaluations

* Fully implement child process streams

* Watch impl, move child_process back to explicitly adding events

Automatically forwarding all events might be the right move, but wanna
think/discuss it a bit more because it didn't come out very cleanly.

* Would you like some args with that callback?

* Implement the rest of child_process using active evals

* Rampant memory leaks

Emit "kill" to active evaluations when client disconnects in order to
kill processes. Most likely won't be the final solution.

* Resolve some minor issues with output panel

* Implement node-pty with active evals

* Provide clearTimeout to vm sandbox

* Implement socket with active evals

* Extract some callback logic

Also remove some eval interfaces, need to re-think those.

* Implement net.Server and remainder of net.Socket using active evals

* Implement dispose for active evaluations

* Use trace for express requests

* Handle sending buffers through evaluation events

* Make event logging a bit more clear

* Fix some errors due to us not actually instantiating until connect/listen

* is this a commit message?

* We can just create the evaluator in the ctor

Not sure what I was thinking.

* memory leak for you, memory leak for everyone

* it's a ternary now

* Don't dispose automatically on close or error

The code may or may not be disposable at that point.

* Handle parsing buffers on the client side as well

* Remove unused protobuf

* Remove TypedValue

* Remove unused forkProvider and test

* Improve dispose pattern for active evals

* Socket calls close after error; no need to bind both

* Improve comment

* Comment is no longer wishy washy due to explicit boolean

* Simplify check for sendHandle and options

* Replace _require with __non_webpack_require__

Webpack will then replace this with `require` which we then provide to
the vm sandbox.

* Provide path.parse

* Prevent original-fs from loading

* Start with a pid of -1

vscode immediately checks the PID to see if the debug process launch
correctly, but of course we don't get the pid synchronously.

* Pass arguments to bootstrap-fork

* Fully implement streams

Was causing errors because internally the stream would set this.writing
to true and it would never become false, so subsequent messages would
never send.

* Fix serializing errors and streams emitting errors multiple times

* Was emitting close to data

* Fix missing path for spawned processes

* Move evaluation onDispose call

Now it's accurate and runs when the active evaluation has actually
disposed.

* Fix promisifying fs.exists

* Fix some active eval callback issues

* Patch existsSync in debug adapter
This commit is contained in:
Asher
2019-02-19 10:17:03 -06:00
committed by GitHub
parent 73762017c8
commit 4a80bcb42c
39 changed files with 1694 additions and 8731 deletions
Download Patch File Download Diff File Expand all files Collapse all files

295
packages/ide/src/fill/fs.ts
View File

@@ -1,13 +1,11 @@
import { exec, ChildProcess } from "child_process";
import { EventEmitter } from "events";
import * as fs from "fs";
import * as stream from "stream";
import { Client, IEncodingOptions, IEncodingOptionsCallback, escapePath, useBuffer } from "@coder/protocol";
import { Client, IEncodingOptions, IEncodingOptionsCallback } from "@coder/protocol";
import { client } from "./client";
import { promisify } from "util";
// Use this to get around Webpack inserting our fills.
// TODO: is there a better way?
declare var _require: typeof require;
declare var __non_webpack_require__: typeof require;
declare var _Buffer: typeof Buffer;
/**
@@ -29,8 +27,8 @@ class FS {
mode = undefined;
}
this.client.evaluate((path, mode) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.access)(path, mode);
}, path, mode).then(() => {
@@ -47,8 +45,8 @@ class FS {
options = undefined;
}
this.client.evaluate((path, data, options) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.appendFile)(path, data, options);
}, file, data, options).then(() => {
@@ -60,8 +58,8 @@ class FS {
public chmod = (path: fs.PathLike, mode: string | number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((path, mode) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.chmod)(path, mode);
}, path, mode).then(() => {
@@ -73,8 +71,8 @@ class FS {
public chown = (path: fs.PathLike, uid: number, gid: number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((path, uid, gid) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.chown)(path, uid, gid);
}, path, uid, gid).then(() => {
@@ -86,8 +84,8 @@ class FS {
public close = (fd: number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((fd) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.close)(fd);
}, fd).then(() => {
@@ -102,8 +100,8 @@ class FS {
callback = flags;
}
this.client.evaluate((src, dest, flags) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.copyFile)(src, dest, flags);
}, src, dest, typeof flags !== "function" ? flags : undefined).then(() => {
@@ -113,19 +111,21 @@ class FS {
});
}
/**
* This should NOT be used for long-term writes.
* The runnable will be killed after the timeout specified in evaluate.ts
*/
// tslint:disable-next-line no-any
public createWriteStream = (path: fs.PathLike, options?: any): fs.WriteStream => {
const ae = this.client.run((ae, path, options) => {
const fs = _require("fs") as typeof import("fs");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const str = fs.createWriteStream(path, options);
ae.on("write", (d, e) => str.write(_Buffer.from(d, "utf8")));
ae.on("write", (d) => str.write(_Buffer.from(d, "utf8")));
ae.on("close", () => str.close());
str.on("close", () => ae.emit("close"));
str.on("open", (fd) => ae.emit("open", fd));
str.on("error", (err) => ae.emit(err));
return {
onDidDispose: (cb): fs.WriteStream => str.on("close", cb),
dispose: (): void => str.close(),
};
}, path, options);
return new (class WriteStream extends stream.Writable implements fs.WriteStream {
@@ -134,7 +134,7 @@ class FS {
public constructor() {
super({
write: (data, encoding, cb) => {
write: (data, encoding, cb): void => {
this._bytesWritten += data.length;
ae.emit("write", Buffer.from(data, encoding), encoding);
cb();
@@ -162,8 +162,8 @@ class FS {
public exists = (path: fs.PathLike, callback: (exists: boolean) => void): void => {
this.client.evaluate((path) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.exists)(path);
}, path).then((r) => {
@@ -175,8 +175,8 @@ class FS {
public fchmod = (fd: number, mode: string | number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((fd, mode) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.fchmod)(fd, mode);
}, fd, mode).then(() => {
@@ -188,8 +188,8 @@ class FS {
public fchown = (fd: number, uid: number, gid: number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((fd, uid, gid) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.fchown)(fd, uid, gid);
}, fd, uid, gid).then(() => {
@@ -201,8 +201,8 @@ class FS {
public fdatasync = (fd: number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((fd) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.fdatasync)(fd);
}, fd).then(() => {
@@ -214,9 +214,9 @@ class FS {
public fstat = (fd: number, callback: (err: NodeJS.ErrnoException, stats: fs.Stats) => void): void => {
this.client.evaluate((fd) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const tslib = _require("tslib") as typeof import("tslib");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
const tslib = __non_webpack_require__("tslib") as typeof import("tslib");
return util.promisify(fs.fstat)(fd).then((stats) => {
return tslib.__assign(stats, {
@@ -238,8 +238,8 @@ class FS {
public fsync = (fd: number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((fd) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.fsync)(fd);
}, fd).then(() => {
@@ -255,8 +255,8 @@ class FS {
len = undefined;
}
this.client.evaluate((fd, len) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.ftruncate)(fd, len);
}, fd, len).then(() => {
@@ -268,8 +268,8 @@ class FS {
public futimes = (fd: number, atime: string | number | Date, mtime: string | number | Date, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((fd, atime, mtime) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.futimes)(fd, atime, mtime);
}, fd, atime, mtime).then(() => {
@@ -281,8 +281,8 @@ class FS {
public lchmod = (path: fs.PathLike, mode: string | number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((path, mode) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.lchmod)(path, mode);
}, path, mode).then(() => {
@@ -294,8 +294,8 @@ class FS {
public lchown = (path: fs.PathLike, uid: number, gid: number, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((path, uid, gid) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.lchown)(path, uid, gid);
}, path, uid, gid).then(() => {
@@ -307,8 +307,8 @@ class FS {
public link = (existingPath: fs.PathLike, newPath: fs.PathLike, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((existingPath, newPath) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.link)(existingPath, newPath);
}, existingPath, newPath).then(() => {
@@ -320,9 +320,9 @@ class FS {
public lstat = (path: fs.PathLike, callback: (err: NodeJS.ErrnoException, stats: fs.Stats) => void): void => {
this.client.evaluate((path) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const tslib = _require("tslib") as typeof import("tslib");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
const tslib = __non_webpack_require__("tslib") as typeof import("tslib");
return util.promisify(fs.lstat)(path).then((stats) => {
return tslib.__assign(stats, {
@@ -348,8 +348,8 @@ class FS {
mode = undefined;
}
this.client.evaluate((path, mode) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.mkdir)(path, mode);
}, path, mode).then(() => {
@@ -365,8 +365,8 @@ class FS {
options = undefined;
}
this.client.evaluate((prefix, options) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.mkdtemp)(prefix, options);
}, prefix, options).then((folder) => {
@@ -382,8 +382,8 @@ class FS {
mode = undefined;
}
this.client.evaluate((path, flags, mode) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.open)(path, flags, mode);
}, path, flags, mode).then((fd) => {
@@ -395,8 +395,8 @@ class FS {
public read = <TBuffer extends Buffer | Uint8Array>(fd: number, buffer: TBuffer, offset: number, length: number, position: number | null, callback: (err: NodeJS.ErrnoException, bytesRead: number, buffer: TBuffer) => void): void => {
this.client.evaluate((fd, length, position) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
const buffer = new _Buffer(length);
return util.promisify(fs.read)(fd, buffer, 0, length, position).then((resp) => {
@@ -420,8 +420,8 @@ class FS {
options = undefined;
}
this.client.evaluate((path, options) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.readFile)(path, options).then((value) => value.toString());
}, path, options).then((buffer) => {
@@ -438,8 +438,8 @@ class FS {
}
// TODO: options can also take `withFileTypes` but the types aren't working.
this.client.evaluate((path, options) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.readdir)(path, options);
}, path, options).then((files) => {
@@ -455,8 +455,8 @@ class FS {
options = undefined;
}
this.client.evaluate((path, options) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.readlink)(path, options);
}, path, options).then((linkString) => {
@@ -472,8 +472,8 @@ class FS {
options = undefined;
}
this.client.evaluate((path, options) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.realpath)(path, options);
}, path, options).then((resolvedPath) => {
@@ -485,8 +485,8 @@ class FS {
public rename = (oldPath: fs.PathLike, newPath: fs.PathLike, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((oldPath, newPath) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.rename)(oldPath, newPath);
}, oldPath, newPath).then(() => {
@@ -498,8 +498,8 @@ class FS {
public rmdir = (path: fs.PathLike, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((path) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.rmdir)(path);
}, path).then(() => {
@@ -511,9 +511,9 @@ class FS {
public stat = (path: fs.PathLike, callback: (err: NodeJS.ErrnoException, stats: fs.Stats) => void): void => {
this.client.evaluate((path) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const tslib = _require("tslib") as typeof import("tslib");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
const tslib = __non_webpack_require__("tslib") as typeof import("tslib");
return util.promisify(fs.stat)(path).then((stats) => {
return tslib.__assign(stats, {
@@ -543,8 +543,8 @@ class FS {
type = undefined;
}
this.client.evaluate((target, path, type) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.symlink)(target, path, type);
}, target, path, type).then(() => {
@@ -560,8 +560,8 @@ class FS {
len = undefined;
}
this.client.evaluate((path, len) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.truncate)(path, len);
}, path, len).then(() => {
@@ -573,8 +573,8 @@ class FS {
public unlink = (path: fs.PathLike, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((path) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.unlink)(path);
}, path).then(() => {
@@ -586,8 +586,8 @@ class FS {
public utimes = (path: fs.PathLike, atime: string | number | Date, mtime: string | number | Date, callback: (err: NodeJS.ErrnoException) => void): void => {
this.client.evaluate((path, atime, mtime) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.utimes)(path, atime, mtime);
}, path, atime, mtime).then(() => {
@@ -603,8 +603,8 @@ class FS {
position = undefined;
}
this.client.evaluate((fd, buffer, offset, length, position) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.write)(fd, _Buffer.from(buffer, "utf8"), offset, length, position).then((resp) => {
return {
@@ -626,8 +626,8 @@ class FS {
options = undefined;
}
this.client.evaluate((path, data, options) => {
const fs = _require("fs") as typeof import("fs");
const util = _require("util") as typeof import("util");
const fs = __non_webpack_require__("fs") as typeof import("fs");
const util = __non_webpack_require__("util") as typeof import("util");
return util.promisify(fs.writeFile)(path, data, options);
}, path, data, options).then(() => {
@@ -637,63 +637,40 @@ class FS {
});
}
public watch = (filename: fs.PathLike, options: IEncodingOptions, listener?: ((event: string, filename: string) => void) | ((event: string, filename: Buffer) => void)): fs.FSWatcher => {
// TODO: can we modify `evaluate` for long-running processes like watch?
// Especially since inotifywait might not be available.
const buffer = new NewlineInputBuffer((msg): void => {
msg = msg.trim();
const index = msg.lastIndexOf(":");
const events = msg.substring(index + 1).split(",");
const baseFilename = msg.substring(0, index).split("/").pop();
events.forEach((event) => {
switch (event) {
// Rename is emitted when a file appears or disappears in the directory.
case "CREATE":
case "DELETE":
case "MOVED_FROM":
case "MOVED_TO":
watcher.emit("rename", baseFilename);
break;
case "CLOSE_WRITE":
watcher.emit("change", baseFilename);
break;
}
});
});
// TODO: `exec` is undefined for some reason.
const process = exec(`inotifywait ${escapePath(filename.toString())} -m --format "%w%f:%e"`);
process.on("exit", (exitCode) => {
watcher.emit("error", new Error(`process terminated unexpectedly with code ${exitCode}`));
});
process.stdout.on("data", (data) => {
buffer.push(data);
});
const watcher = new Watcher(process);
if (listener) {
const l = listener;
watcher.on("change", (filename) => {
// @ts-ignore not sure how to make this work.
l("change", useBuffer(options) ? Buffer.from(filename) : filename);
});
watcher.on("rename", (filename) => {
// @ts-ignore not sure how to make this work.
l("rename", useBuffer(options) ? Buffer.from(filename) : filename);
});
public watch = (filename: fs.PathLike, options?: IEncodingOptions | ((event: string, filename: string | Buffer) => void), listener?: ((event: string, filename: string | Buffer) => void)): fs.FSWatcher => {
if (typeof options === "function") {
listener = options;
options = undefined;
}
return watcher;
}
}
const ae = this.client.run((ae, filename, hasListener, options) => {
const fs = __non_webpack_require__("fs") as typeof import ("fs");
// tslint:disable-next-line no-any
const watcher = fs.watch(filename, options as any, hasListener ? (event, filename): void => {
ae.emit("listener", event, filename);
} : undefined);
watcher.on("change", (event, filename) => ae.emit("change", event, filename));
watcher.on("error", (error) => ae.emit("error", error));
ae.on("close", () => watcher.close());
class Watcher extends EventEmitter implements fs.FSWatcher {
public constructor(private readonly process: ChildProcess) {
super();
}
return {
onDidDispose: (cb): void => ae.on("close", cb),
dispose: (): void => watcher.close(),
};
}, filename.toString(), !!listener, options);
public close(): void {
this.process.kill();
return new class Watcher extends EventEmitter implements fs.FSWatcher {
public constructor() {
super();
ae.on("change", (event, filename) => this.emit("change", event, filename));
ae.on("error", (error) => this.emit("error", error));
ae.on("listener", (event, filename) => listener && listener(event, filename));
}
public close(): void {
ae.emit("close");
}
};
}
}
@@ -765,38 +742,10 @@ class Stats implements fs.Stats {
}
}
/**
* Class for safely taking input and turning it into separate messages.
* Assumes that messages are split by newlines.
*/
class NewlineInputBuffer {
private callback: (msg: string) => void;
private buffer: string | undefined;
public constructor(callback: (msg: string) => void) {
this.callback = callback;
}
/**
* Add data to be buffered.
*/
public push(data: string | Uint8Array): void {
let input = typeof data === "string" ? data : data.toString();
if (this.buffer) {
input = this.buffer + input;
this.buffer = undefined;
}
const lines = input.split("\n");
const length = lines.length - 1;
const lastLine = lines[length];
if (lastLine.length > 0) {
this.buffer = lastLine;
}
lines.pop(); // This is either the line we buffered or an empty string.
for (let i = 0; i < length; ++i) {
this.callback(lines[i]);
}
}
}
export = new FS(client);
const fillFs = new FS(client);
// Methods that don't follow the standard callback pattern (an error followed
// by a single result) need to provide a custom promisify function.
Object.defineProperty(fillFs.exists, promisify.custom, {
value: (path: fs.PathLike): Promise<boolean> => new Promise((resolve): void => fillFs.exists(path, resolve)),
});
export = fillFs;