599 lines
26 KiB
TypeScript
599 lines
26 KiB
TypeScript
/// <reference path="core.ts"/>
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namespace ts {
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export type FileWatcherCallback = (fileName: string, removed?: boolean) => void;
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export type DirectoryWatcherCallback = (fileName: string) => void;
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export interface WatchedFile {
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fileName: string;
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callback: FileWatcherCallback;
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mtime?: Date;
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}
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export interface System {
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args: string[];
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newLine: string;
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useCaseSensitiveFileNames: boolean;
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write(s: string): void;
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readFile(path: string, encoding?: string): string;
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getFileSize?(path: string): number;
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writeFile(path: string, data: string, writeByteOrderMark?: boolean): void;
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watchFile?(path: string, callback: FileWatcherCallback): FileWatcher;
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watchDirectory?(path: string, callback: DirectoryWatcherCallback, recursive?: boolean): FileWatcher;
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resolvePath(path: string): string;
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fileExists(path: string): boolean;
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directoryExists(path: string): boolean;
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createDirectory(path: string): void;
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getExecutingFilePath(): string;
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getCurrentDirectory(): string;
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getDirectories(path: string): string[];
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readDirectory(path: string, extensions?: string[], exclude?: string[], include?: string[]): string[];
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getModifiedTime?(path: string): Date;
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createHash?(data: string): string;
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getMemoryUsage?(): number;
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exit(exitCode?: number): void;
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realpath?(path: string): string;
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}
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export interface FileWatcher {
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close(): void;
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}
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export interface DirectoryWatcher extends FileWatcher {
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directoryName: string;
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referenceCount: number;
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}
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declare var require: any;
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declare var module: any;
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declare var process: any;
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declare var global: any;
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declare var __filename: string;
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declare var Buffer: {
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new (str: string, encoding?: string): any;
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};
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declare class Enumerator {
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public atEnd(): boolean;
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public moveNext(): boolean;
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public item(): any;
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constructor(o: any);
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}
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declare var ChakraHost: {
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args: string[];
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currentDirectory: string;
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executingFile: string;
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newLine?: string;
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useCaseSensitiveFileNames?: boolean;
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echo(s: string): void;
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quit(exitCode?: number): void;
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fileExists(path: string): boolean;
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directoryExists(path: string): boolean;
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createDirectory(path: string): void;
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resolvePath(path: string): string;
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readFile(path: string): string;
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writeFile(path: string, contents: string): void;
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getDirectories(path: string): string[];
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readDirectory(path: string, extensions?: string[], basePaths?: string[], excludeEx?: string, includeFileEx?: string, includeDirEx?: string): string[];
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watchFile?(path: string, callback: FileWatcherCallback): FileWatcher;
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watchDirectory?(path: string, callback: DirectoryWatcherCallback, recursive?: boolean): FileWatcher;
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realpath(path: string): string;
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};
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export var sys: System = (function() {
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function getWScriptSystem(): System {
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const fso = new ActiveXObject("Scripting.FileSystemObject");
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const shell = new ActiveXObject("WScript.Shell");
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const fileStream = new ActiveXObject("ADODB.Stream");
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fileStream.Type = 2 /*text*/;
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const binaryStream = new ActiveXObject("ADODB.Stream");
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binaryStream.Type = 1 /*binary*/;
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const args: string[] = [];
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for (let i = 0; i < WScript.Arguments.length; i++) {
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args[i] = WScript.Arguments.Item(i);
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}
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function readFile(fileName: string, encoding?: string): string {
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if (!fso.FileExists(fileName)) {
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return undefined;
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}
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fileStream.Open();
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try {
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if (encoding) {
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fileStream.Charset = encoding;
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fileStream.LoadFromFile(fileName);
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}
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else {
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// Load file and read the first two bytes into a string with no interpretation
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fileStream.Charset = "x-ansi";
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fileStream.LoadFromFile(fileName);
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const bom = fileStream.ReadText(2) || "";
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// Position must be at 0 before encoding can be changed
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fileStream.Position = 0;
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// [0xFF,0xFE] and [0xFE,0xFF] mean utf-16 (little or big endian), otherwise default to utf-8
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fileStream.Charset = bom.length >= 2 && (bom.charCodeAt(0) === 0xFF && bom.charCodeAt(1) === 0xFE || bom.charCodeAt(0) === 0xFE && bom.charCodeAt(1) === 0xFF) ? "unicode" : "utf-8";
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}
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// ReadText method always strips byte order mark from resulting string
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return fileStream.ReadText();
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}
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catch (e) {
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throw e;
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}
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finally {
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fileStream.Close();
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}
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}
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function writeFile(fileName: string, data: string, writeByteOrderMark?: boolean): void {
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fileStream.Open();
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binaryStream.Open();
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try {
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// Write characters in UTF-8 encoding
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fileStream.Charset = "utf-8";
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fileStream.WriteText(data);
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// If we don't want the BOM, then skip it by setting the starting location to 3 (size of BOM).
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// If not, start from position 0, as the BOM will be added automatically when charset==utf8.
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if (writeByteOrderMark) {
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fileStream.Position = 0;
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}
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else {
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fileStream.Position = 3;
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}
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fileStream.CopyTo(binaryStream);
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binaryStream.SaveToFile(fileName, 2 /*overwrite*/);
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}
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finally {
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binaryStream.Close();
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fileStream.Close();
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}
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}
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function getNames(collection: any): string[] {
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const result: string[] = [];
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for (let e = new Enumerator(collection); !e.atEnd(); e.moveNext()) {
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result.push(e.item().Name);
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}
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return result.sort();
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}
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function getDirectories(path: string): string[] {
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const folder = fso.GetFolder(path);
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return getNames(folder.subfolders);
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}
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function getAccessibleFileSystemEntries(path: string): FileSystemEntries {
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try {
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const folder = fso.GetFolder(path || ".");
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const files = getNames(folder.files);
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const directories = getNames(folder.subfolders);
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return { files, directories };
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}
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catch (e) {
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return { files: [], directories: [] };
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}
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}
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function readDirectory(path: string, extensions?: string[], excludes?: string[], includes?: string[]): string[] {
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return matchFiles(path, extensions, excludes, includes, /*useCaseSensitiveFileNames*/ false, shell.CurrentDirectory, getAccessibleFileSystemEntries);
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}
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const wscriptSystem: System = {
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args,
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newLine: "\r\n",
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useCaseSensitiveFileNames: false,
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write(s: string): void {
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WScript.StdOut.Write(s);
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},
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readFile,
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writeFile,
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resolvePath(path: string): string {
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return fso.GetAbsolutePathName(path);
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},
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fileExists(path: string): boolean {
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return fso.FileExists(path);
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},
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directoryExists(path: string) {
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return fso.FolderExists(path);
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},
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createDirectory(directoryName: string) {
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if (!wscriptSystem.directoryExists(directoryName)) {
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fso.CreateFolder(directoryName);
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}
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},
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getExecutingFilePath() {
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return WScript.ScriptFullName;
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},
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getCurrentDirectory() {
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return shell.CurrentDirectory;
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},
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getDirectories,
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readDirectory,
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exit(exitCode?: number): void {
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try {
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WScript.Quit(exitCode);
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}
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catch (e) {
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}
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}
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};
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return wscriptSystem;
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}
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function getNodeSystem(): System {
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const _fs = require("fs");
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const _path = require("path");
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const _os = require("os");
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const _crypto = require("crypto");
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const useNonPollingWatchers = process.env["TSC_NONPOLLING_WATCHER"];
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function createWatchedFileSet() {
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const dirWatchers = createMap<DirectoryWatcher>();
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// One file can have multiple watchers
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const fileWatcherCallbacks = createMap<FileWatcherCallback[]>();
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return { addFile, removeFile };
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function reduceDirWatcherRefCountForFile(fileName: string) {
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const dirName = getDirectoryPath(fileName);
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const watcher = dirWatchers[dirName];
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if (watcher) {
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watcher.referenceCount -= 1;
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if (watcher.referenceCount <= 0) {
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watcher.close();
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delete dirWatchers[dirName];
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}
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}
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}
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function addDirWatcher(dirPath: string): void {
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let watcher = dirWatchers[dirPath];
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if (watcher) {
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watcher.referenceCount += 1;
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return;
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}
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watcher = _fs.watch(
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dirPath,
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{ persistent: true },
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(eventName: string, relativeFileName: string) => fileEventHandler(eventName, relativeFileName, dirPath)
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);
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watcher.referenceCount = 1;
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dirWatchers[dirPath] = watcher;
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return;
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}
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function addFileWatcherCallback(filePath: string, callback: FileWatcherCallback): void {
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multiMapAdd(fileWatcherCallbacks, filePath, callback);
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}
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function addFile(fileName: string, callback: FileWatcherCallback): WatchedFile {
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addFileWatcherCallback(fileName, callback);
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addDirWatcher(getDirectoryPath(fileName));
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return { fileName, callback };
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}
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function removeFile(watchedFile: WatchedFile) {
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removeFileWatcherCallback(watchedFile.fileName, watchedFile.callback);
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reduceDirWatcherRefCountForFile(watchedFile.fileName);
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}
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function removeFileWatcherCallback(filePath: string, callback: FileWatcherCallback) {
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const callbacks = fileWatcherCallbacks[filePath];
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if (callbacks) {
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unorderedRemoveItem(callbacks, callback);
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if (callbacks.length === 0) {
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delete fileWatcherCallbacks[filePath];
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}
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}
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}
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function fileEventHandler(eventName: string, relativeFileName: string, baseDirPath: string) {
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// When files are deleted from disk, the triggered "rename" event would have a relativefileName of "undefined"
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const fileName = typeof relativeFileName !== "string"
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? undefined
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: ts.getNormalizedAbsolutePath(relativeFileName, baseDirPath);
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// Some applications save a working file via rename operations
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if ((eventName === "change" || eventName === "rename") && fileWatcherCallbacks[fileName]) {
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for (const fileCallback of fileWatcherCallbacks[fileName]) {
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fileCallback(fileName);
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}
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}
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}
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}
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const watchedFileSet = createWatchedFileSet();
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function isNode4OrLater(): boolean {
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return parseInt(process.version.charAt(1)) >= 4;
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}
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const platform: string = _os.platform();
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// win32\win64 are case insensitive platforms, MacOS (darwin) by default is also case insensitive
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const useCaseSensitiveFileNames = platform !== "win32" && platform !== "win64" && platform !== "darwin";
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function readFile(fileName: string, encoding?: string): string {
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if (!fileExists(fileName)) {
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return undefined;
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}
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const buffer = _fs.readFileSync(fileName);
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let len = buffer.length;
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if (len >= 2 && buffer[0] === 0xFE && buffer[1] === 0xFF) {
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// Big endian UTF-16 byte order mark detected. Since big endian is not supported by node.js,
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// flip all byte pairs and treat as little endian.
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len &= ~1;
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for (let i = 0; i < len; i += 2) {
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const temp = buffer[i];
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buffer[i] = buffer[i + 1];
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buffer[i + 1] = temp;
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}
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return buffer.toString("utf16le", 2);
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}
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if (len >= 2 && buffer[0] === 0xFF && buffer[1] === 0xFE) {
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// Little endian UTF-16 byte order mark detected
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return buffer.toString("utf16le", 2);
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}
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if (len >= 3 && buffer[0] === 0xEF && buffer[1] === 0xBB && buffer[2] === 0xBF) {
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// UTF-8 byte order mark detected
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return buffer.toString("utf8", 3);
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}
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// Default is UTF-8 with no byte order mark
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return buffer.toString("utf8");
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}
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function writeFile(fileName: string, data: string, writeByteOrderMark?: boolean): void {
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// If a BOM is required, emit one
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if (writeByteOrderMark) {
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data = "\uFEFF" + data;
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}
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let fd: number;
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try {
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fd = _fs.openSync(fileName, "w");
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_fs.writeSync(fd, data, undefined, "utf8");
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}
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finally {
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if (fd !== undefined) {
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_fs.closeSync(fd);
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}
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}
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}
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function getAccessibleFileSystemEntries(path: string): FileSystemEntries {
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try {
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const entries = _fs.readdirSync(path || ".").sort();
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const files: string[] = [];
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const directories: string[] = [];
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for (const entry of entries) {
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// This is necessary because on some file system node fails to exclude
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// "." and "..". See https://github.com/nodejs/node/issues/4002
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if (entry === "." || entry === "..") {
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continue;
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}
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const name = combinePaths(path, entry);
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let stat: any;
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try {
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stat = _fs.statSync(name);
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}
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catch (e) {
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continue;
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}
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if (stat.isFile()) {
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files.push(entry);
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}
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else if (stat.isDirectory()) {
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directories.push(entry);
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}
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}
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return { files, directories };
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}
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catch (e) {
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return { files: [], directories: [] };
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}
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}
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function readDirectory(path: string, extensions?: string[], excludes?: string[], includes?: string[]): string[] {
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return matchFiles(path, extensions, excludes, includes, useCaseSensitiveFileNames, process.cwd(), getAccessibleFileSystemEntries);
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}
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const enum FileSystemEntryKind {
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File,
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Directory
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}
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function fileSystemEntryExists(path: string, entryKind: FileSystemEntryKind): boolean {
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try {
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const stat = _fs.statSync(path);
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switch (entryKind) {
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case FileSystemEntryKind.File: return stat.isFile();
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case FileSystemEntryKind.Directory: return stat.isDirectory();
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}
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}
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catch (e) {
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return false;
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}
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}
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function fileExists(path: string): boolean {
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return fileSystemEntryExists(path, FileSystemEntryKind.File);
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}
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function directoryExists(path: string): boolean {
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return fileSystemEntryExists(path, FileSystemEntryKind.Directory);
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}
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function getDirectories(path: string): string[] {
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return filter<string>(_fs.readdirSync(path), p => fileSystemEntryExists(combinePaths(path, p), FileSystemEntryKind.Directory));
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}
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const nodeSystem: System = {
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args: process.argv.slice(2),
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newLine: _os.EOL,
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useCaseSensitiveFileNames: useCaseSensitiveFileNames,
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write(s: string): void {
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process.stdout.write(s);
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},
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readFile,
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writeFile,
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watchFile: (fileName, callback) => {
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if (useNonPollingWatchers) {
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const watchedFile = watchedFileSet.addFile(fileName, callback);
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return {
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close: () => watchedFileSet.removeFile(watchedFile)
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};
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}
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else {
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_fs.watchFile(fileName, { persistent: true, interval: 250 }, fileChanged);
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return {
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close: () => _fs.unwatchFile(fileName, fileChanged)
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};
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}
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function fileChanged(curr: any, prev: any) {
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if (+curr.mtime <= +prev.mtime) {
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return;
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}
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callback(fileName);
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}
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},
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watchDirectory: (directoryName, callback, recursive) => {
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// Node 4.0 `fs.watch` function supports the "recursive" option on both OSX and Windows
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// (ref: https://github.com/nodejs/node/pull/2649 and https://github.com/Microsoft/TypeScript/issues/4643)
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let options: any;
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if (isNode4OrLater() && (process.platform === "win32" || process.platform === "darwin")) {
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options = { persistent: true, recursive: !!recursive };
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}
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else {
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options = { persistent: true };
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}
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return _fs.watch(
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directoryName,
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options,
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(eventName: string, relativeFileName: string) => {
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// In watchDirectory we only care about adding and removing files (when event name is
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// "rename"); changes made within files are handled by corresponding fileWatchers (when
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// event name is "change")
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if (eventName === "rename") {
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// When deleting a file, the passed baseFileName is null
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callback(!relativeFileName ? relativeFileName : normalizePath(combinePaths(directoryName, relativeFileName)));
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};
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}
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);
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},
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resolvePath: function(path: string): string {
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return _path.resolve(path);
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},
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fileExists,
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directoryExists,
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createDirectory(directoryName: string) {
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if (!nodeSystem.directoryExists(directoryName)) {
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_fs.mkdirSync(directoryName);
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}
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},
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getExecutingFilePath() {
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return __filename;
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},
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getCurrentDirectory() {
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return process.cwd();
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},
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getDirectories,
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readDirectory,
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getModifiedTime(path) {
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try {
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return _fs.statSync(path).mtime;
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}
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catch (e) {
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return undefined;
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}
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},
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createHash(data) {
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const hash = _crypto.createHash("md5");
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hash.update(data);
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return hash.digest("hex");
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},
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getMemoryUsage() {
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if (global.gc) {
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global.gc();
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}
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return process.memoryUsage().heapUsed;
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},
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getFileSize(path) {
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try {
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const stat = _fs.statSync(path);
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if (stat.isFile()) {
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return stat.size;
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}
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}
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catch (e) { }
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return 0;
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},
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exit(exitCode?: number): void {
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process.exit(exitCode);
|
|
},
|
|
realpath(path: string): string {
|
|
return _fs.realpathSync(path);
|
|
}
|
|
};
|
|
return nodeSystem;
|
|
}
|
|
|
|
function getChakraSystem(): System {
|
|
const realpath = ChakraHost.realpath && ((path: string) => ChakraHost.realpath(path));
|
|
return {
|
|
newLine: ChakraHost.newLine || "\r\n",
|
|
args: ChakraHost.args,
|
|
useCaseSensitiveFileNames: !!ChakraHost.useCaseSensitiveFileNames,
|
|
write: ChakraHost.echo,
|
|
readFile(path: string, encoding?: string) {
|
|
// encoding is automatically handled by the implementation in ChakraHost
|
|
return ChakraHost.readFile(path);
|
|
},
|
|
writeFile(path: string, data: string, writeByteOrderMark?: boolean) {
|
|
// If a BOM is required, emit one
|
|
if (writeByteOrderMark) {
|
|
data = "\uFEFF" + data;
|
|
}
|
|
|
|
ChakraHost.writeFile(path, data);
|
|
},
|
|
resolvePath: ChakraHost.resolvePath,
|
|
fileExists: ChakraHost.fileExists,
|
|
directoryExists: ChakraHost.directoryExists,
|
|
createDirectory: ChakraHost.createDirectory,
|
|
getExecutingFilePath: () => ChakraHost.executingFile,
|
|
getCurrentDirectory: () => ChakraHost.currentDirectory,
|
|
getDirectories: ChakraHost.getDirectories,
|
|
readDirectory: (path: string, extensions?: string[], excludes?: string[], includes?: string[]) => {
|
|
const pattern = getFileMatcherPatterns(path, extensions, excludes, includes, !!ChakraHost.useCaseSensitiveFileNames, ChakraHost.currentDirectory);
|
|
return ChakraHost.readDirectory(path, extensions, pattern.basePaths, pattern.excludePattern, pattern.includeFilePattern, pattern.includeDirectoryPattern);
|
|
},
|
|
exit: ChakraHost.quit,
|
|
realpath
|
|
};
|
|
}
|
|
|
|
if (typeof ChakraHost !== "undefined") {
|
|
return getChakraSystem();
|
|
}
|
|
else if (typeof WScript !== "undefined" && typeof ActiveXObject === "function") {
|
|
return getWScriptSystem();
|
|
}
|
|
else if (typeof process !== "undefined" && process.nextTick && !process.browser && typeof require !== "undefined") {
|
|
// process and process.nextTick checks if current environment is node-like
|
|
// process.browser check excludes webpack and browserify
|
|
return getNodeSystem();
|
|
}
|
|
else {
|
|
return undefined; // Unsupported host
|
|
}
|
|
})();
|
|
}
|