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246 lines (223 loc) · 8.04 KB
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import { Argument, Module as ProtoModule, WorkingInit } from "../proto";
import { OperatingSystem } from "../common/connection";
import { ClientServerProxy, Module, ServerProxy } from "./proxy";
// tslint:disable no-any
/**
* Return true if we're in a browser environment (including web workers).
*/
export const isBrowserEnvironment = (): boolean => {
return typeof process === "undefined" || typeof process.stdout === "undefined";
};
/**
* Escape a path. This prevents any issues with file names that have quotes,
* spaces, braces, etc.
*/
export const escapePath = (path: string): string => {
return `'${path.replace(/'/g, "'\\''")}'`;
};
export type EventCallback = (event: string, ...args: any[]) => void;
export type IEncodingOptions = {
encoding?: BufferEncoding | null;
flag?: string;
mode?: string;
persistent?: boolean;
recursive?: boolean;
} | BufferEncoding | undefined | null;
export type IEncodingOptionsCallback = IEncodingOptions | ((err: NodeJS.ErrnoException, ...args: any[]) => void);
/**
* Convert an argument to proto.
* If sending a function is possible, provide `storeFunction`.
* If sending a proxy is possible, provide `storeProxy`.
*/
export const argumentToProto = <P = ClientServerProxy | ServerProxy>(
value: any,
storeFunction?: (fn: () => void) => number,
storeProxy?: (proxy: P) => number | Module,
): Argument => {
const convert = (currentValue: any): Argument => {
const message = new Argument();
if (isProxy<P>(currentValue)) {
if (!storeProxy) {
throw new Error("no way to serialize proxy");
}
const arg = new Argument.ProxyValue();
const id = storeProxy(currentValue);
if (typeof id === "string") {
throw new Error("unable to serialize module proxy");
}
arg.setId(id);
message.setProxy(arg);
} else if (currentValue instanceof Error
|| (currentValue && typeof currentValue.message !== "undefined"
&& typeof currentValue.stack !== "undefined")) {
const arg = new Argument.ErrorValue();
arg.setMessage(currentValue.message);
arg.setStack(currentValue.stack);
arg.setCode(currentValue.code);
message.setError(arg);
} else if (currentValue instanceof Uint8Array || currentValue instanceof Buffer) {
const arg = new Argument.BufferValue();
arg.setData(currentValue);
message.setBuffer(arg);
} else if (Array.isArray(currentValue)) {
const arg = new Argument.ArrayValue();
arg.setDataList(currentValue.map(convert));
message.setArray(arg);
} else if (currentValue instanceof Date
|| (currentValue && typeof currentValue.getTime === "function")) {
const arg = new Argument.DateValue();
arg.setDate(currentValue.toString());
message.setDate(arg);
} else if (currentValue !== null && typeof currentValue === "object") {
const arg = new Argument.ObjectValue();
const map = arg.getDataMap();
Object.keys(currentValue).forEach((key) => {
map.set(key, convert(currentValue[key]));
});
message.setObject(arg);
} else if (currentValue === null) {
message.setNull(new Argument.NullValue());
} else {
switch (typeof currentValue) {
case "undefined":
message.setUndefined(new Argument.UndefinedValue());
break;
case "function":
if (!storeFunction) {
throw new Error("no way to serialize function");
}
const arg = new Argument.FunctionValue();
arg.setId(storeFunction(currentValue));
message.setFunction(arg);
break;
case "number":
message.setNumber(currentValue);
break;
case "string":
message.setString(currentValue);
break;
case "boolean":
message.setBoolean(currentValue);
break;
default:
throw new Error(`cannot convert ${typeof currentValue} to proto`);
}
}
return message;
};
return convert(value);
};
/**
* Convert proto to an argument.
* If running a remote callback is supported, provide `runCallback`.
* If using a remote proxy is supported, provide `createProxy`.
*/
export const protoToArgument = (
message?: Argument,
runCallback?: (id: number, args: any[]) => void,
createProxy?: (id: number) => ServerProxy,
): any => {
const convert = (currentMessage: Argument): any => {
switch (currentMessage.getMsgCase()) {
case Argument.MsgCase.ERROR:
const errorMessage = currentMessage.getError()!;
const error = new Error(errorMessage.getMessage());
(error as NodeJS.ErrnoException).code = errorMessage.getCode();
(error as any).originalStack = errorMessage.getStack();
return error;
case Argument.MsgCase.BUFFER:
return Buffer.from(currentMessage.getBuffer()!.getData() as Uint8Array);
case Argument.MsgCase.ARRAY:
return currentMessage.getArray()!.getDataList().map((a) => convert(a));
case Argument.MsgCase.PROXY:
if (!createProxy) {
throw new Error("no way to create proxy");
}
return createProxy(currentMessage.getProxy()!.getId());
case Argument.MsgCase.DATE:
return new Date(currentMessage.getDate()!.getDate());
case Argument.MsgCase.OBJECT:
const obj: { [Key: string]: any } = {};
currentMessage.getObject()!.getDataMap().forEach((argument, key) => {
obj[key] = convert(argument);
});
return obj;
case Argument.MsgCase.UNDEFINED:
return undefined;
case Argument.MsgCase.NULL:
return null;
case Argument.MsgCase.FUNCTION:
if (!runCallback) {
throw new Error("no way to run remote callback");
}
return (...args: any[]): void => {
return runCallback(currentMessage.getFunction()!.getId(), args);
};
case Argument.MsgCase.NUMBER:
return currentMessage.getNumber();
case Argument.MsgCase.STRING:
return currentMessage.getString();
case Argument.MsgCase.BOOLEAN:
return currentMessage.getBoolean();
default:
throw new Error("cannot convert unexpected proto to argument");
}
};
return message && convert(message);
};
export const protoToModule = (protoModule: ProtoModule): Module => {
switch (protoModule) {
case ProtoModule.CHILDPROCESS: return Module.ChildProcess;
case ProtoModule.FS: return Module.Fs;
case ProtoModule.NET: return Module.Net;
case ProtoModule.NODEPTY: return Module.NodePty;
case ProtoModule.SPDLOG: return Module.Spdlog;
case ProtoModule.TRASH: return Module.Trash;
default: throw new Error(`invalid module ${protoModule}`);
}
};
export const moduleToProto = (moduleName: Module): ProtoModule => {
switch (moduleName) {
case Module.ChildProcess: return ProtoModule.CHILDPROCESS;
case Module.Fs: return ProtoModule.FS;
case Module.Net: return ProtoModule.NET;
case Module.NodePty: return ProtoModule.NODEPTY;
case Module.Spdlog: return ProtoModule.SPDLOG;
case Module.Trash: return ProtoModule.TRASH;
default: throw new Error(`invalid module "${moduleName}"`);
}
};
export const protoToOperatingSystem = (protoOp: WorkingInit.OperatingSystem): OperatingSystem => {
switch (protoOp) {
case WorkingInit.OperatingSystem.WINDOWS: return OperatingSystem.Windows;
case WorkingInit.OperatingSystem.LINUX: return OperatingSystem.Linux;
case WorkingInit.OperatingSystem.MAC: return OperatingSystem.Mac;
default: throw new Error(`unsupported operating system ${protoOp}`);
}
};
export const platformToProto = (platform: NodeJS.Platform): WorkingInit.OperatingSystem => {
switch (platform) {
case "win32": return WorkingInit.OperatingSystem.WINDOWS;
case "linux": return WorkingInit.OperatingSystem.LINUX;
case "darwin": return WorkingInit.OperatingSystem.MAC;
default: throw new Error(`unrecognized platform "${platform}"`);
}
};
export const isProxy = <P = ClientServerProxy | ServerProxy>(value: any): value is P => {
return value && typeof value === "object" && typeof value.onEvent === "function";
};
export const isPromise = (value: any): value is Promise<any> => {
return typeof value.then === "function" && typeof value.catch === "function";
};
/**
* When spawning VS Code tries to preserve the environment but since it's in
* the browser, it doesn't work.
*/
export const withEnv = <T extends { env?: NodeJS.ProcessEnv }>(options?: T): T | undefined => {
return options && options.env ? {
...options,
env: {
...process.env, ...options.env,
},
} : options;
};