#800: support for Windows' cmd shell

package.json

@@ -29,7 +29,6 @@
     "@types/klaw": "1.3.2",
     "@types/lodash": "4.14.64",
     "@types/node": "7.0.18",
-    "@types/pty.js": "0.2.32",
     "@types/react": "15.0.24",
     "child-process-promise": "2.2.1",
     "dirStat": "0.0.2",
@@ -42,7 +41,7 @@
     "lodash": "4.17.4",
     "mode-to-permissions": "0.0.2",
     "node-ansiparser": "2.2.0",
-    "pty.js": "shockone/pty.js",
+    "node-pty": "0.6.6",
     "react": "15.5.4",
     "react-addons-test-utils": "15.5.1",
     "react-dom": "15.5.4",
@@ -54,14 +53,19 @@
     "@types/klaw": "1.3.2",
     "@types/mocha": "2.2.41",
     "chai": "3.5.0",
+    "concurrently": "3.4.0",
+    "cpx": "1.5.0",
+    "cross-env": "5.0.0",
     "devtron": "1.4.0",
     "electron": "1.6.7",
     "electron-builder": "17.5.0",
     "electron-mocha": "3.4.0",
     "electron-rebuild": "1.5.11",
     "enzyme": "2.8.2",
+    "mkdirp": "0.5.1",
     "mocha": "3.3.0",
     "npm-check-updates": "2.11.1",
+    "rimraf": "2.6.1",
     "spectron": "3.7.0",
     "ts-node": "3.0.4",
     "tslint": "5.2.0",
@@ -74,15 +78,15 @@
     "release": "build --publish always --draft=false",
     "electron": "electron .",
     "prestart": "npm install && npm run compile",
-    "start": "bash housekeeping/start.sh",
+    "start": "concurrently --kill-others -s first \"tsc --watch\" \"cross-env NODE_ENV=development npm run electron\"",
     "test": "npm run lint && npm run unit-tests && npm run ui-tests && npm run integration-tests && build --publish never",
     "unit-tests": "ELECTRON_RUN_AS_NODE=1 electron $(which mocha) --require ts-node/register $(find test -name '*_spec.ts')",
     "ui-tests": "electron-mocha --require ts-node/register $(find test -name '*_spec.tsx')",
     "integration-tests": "npm run compile && mocha",
     "update-dependencies": "ncu -u",
     "lint": "tslint `find src -name '*.ts*'` `find test -name '*.ts*'`",
-    "cleanup": "rm -rf compiled/src",
-    "copy-html": "mkdir -p compiled/src/views && cp src/views/index.html compiled/src/views",
+    "cleanup": "rimraf compiled/src",
+    "copy-html": "mkdirp compiled/src/views && cpx src/views/index.html compiled/src/views",
     "compile": "npm run cleanup && npm run tsc && npm run copy-html",
     "tsc": "tsc"
   },

src/PTY.ts

@@ -1,32 +1,37 @@
 import * as ChildProcess from "child_process";
 import * as OS from "os";
 import * as _ from "lodash";
-import * as pty from "pty.js";
+import * as pty from "node-pty";
 import {loginShell} from "./utils/Shell";
 import {debug} from "./utils/Common";
 
+interface ITerminal {
+    write(data: string): void;
+    resize(cols: number, rows: number): void;
+    kill(signal?: string): void;
+    on(type: string, listener: (...args: any[]) => any): void;
+}
+
 export class PTY {
-    private terminal: pty.Terminal;
+    private terminal: ITerminal;
 
     // TODO: write proper signatures.
     // TODO: use generators.
     // TODO: terminate. https://github.com/atom/atom/blob/v1.0.15/src/task.coffee#L151
     constructor(words: EscapedShellWord[], env: ProcessEnvironment, dimensions: Dimensions, dataHandler: (d: string) => void, exitHandler: (c: number) => void) {
-        const shellArguments = [...loginShell.noConfigSwitches, "-i", "-c", words.join(" ")];
+        const shellArguments = [...loginShell.noConfigSwitches, ...loginShell.interactiveCommandSwitches, words.join(" ")];
 
         debug(`PTY: ${loginShell.executableName} ${JSON.stringify(shellArguments)}`);
 
-        this.terminal = pty.fork(loginShell.executableName, shellArguments, {
+        this.terminal = <any> pty.fork(loginShell.executableName, shellArguments, {
             cols: dimensions.columns,
             rows: dimensions.rows,
             cwd: env.PWD,
             env: env,
         });
 
         this.terminal.on("data", (data: string) => dataHandler(data));
-        this.terminal.on("exit", (code: number) => {
-            exitHandler(code);
-        });
+        this.terminal.on("exit", (code: number) => exitHandler(code));
     }
 
     write(data: string): void {
@@ -65,7 +70,7 @@ export function executeCommand(
             ...execOptions,
             env: _.extend({PWD: directory}, process.env),
             cwd: directory,
-            shell: "/bin/bash",
+            shell: loginShell.commandExecutorPath,
         };
 
         ChildProcess.exec(`${command} ${args.join(" ")}`, options, (error, output) => {
@@ -86,5 +91,5 @@ export async function linedOutputOf(command: string, args: string[], directory:
 export async function executeCommandWithShellConfig(command: string): Promise<string[]> {
     const sourceCommands = (await loginShell.existingConfigFiles()).map(fileName => `source ${fileName} &> /dev/null`);
 
-    return await linedOutputOf(loginShell.executableName, ["-c", `'${[...sourceCommands, command].join("; ")}'`], process.env.HOME);
+    return await linedOutputOf(loginShell.executableName, [...loginShell.interactiveCommandSwitches, loginShell.combineCommands([...sourceCommands, command])], process.env.HOME);
 }

src/shell/Aliases.ts

@@ -1,11 +1,10 @@
-import {executeCommandWithShellConfig} from "../PTY";
+import {loginShell} from "../utils/Shell";
 import * as _ from "lodash";
 
 export const aliasesFromConfig: Dictionary<string> = {};
 
 export async function loadAliasesFromConfig(): Promise<void> {
-    const lines = await executeCommandWithShellConfig("alias");
-
+    const lines = await loginShell.loadAliases();
     lines.map(parseAlias).forEach(parsed => aliasesFromConfig[parsed.name] = parsed.value);
 }
 

src/shell/Environment.ts

@@ -4,6 +4,7 @@ import {clone} from "lodash";
 import {homeDirectory} from "../utils/Common";
 import * as Path from "path";
 import {AbstractOrderedSet} from "../utils/OrderedSet";
+import {loginShell} from "../utils/Shell";
 
 const ignoredEnvironmentVariables = [
     "NODE_ENV",
@@ -34,7 +35,7 @@ export const preprocessEnv = (lines: string[]) => {
 
 export const processEnvironment: Dictionary<string> = {};
 export async function loadEnvironment(): Promise<void> {
-    const lines = preprocessEnv(await executeCommandWithShellConfig("env"));
+    const lines = preprocessEnv(await executeCommandWithShellConfig(loginShell.environmentCommand));
 
     lines.forEach(line => {
         const [key, ...valueComponents] = line.trim().split("=");

src/utils/Shell.ts

@@ -2,15 +2,23 @@ import {basename} from "path";
 import {readFileSync, statSync} from "fs";
 import * as Path from "path";
 import {EOL} from "os";
-import {resolveFile, io, filterAsync, homeDirectory} from "./Common";
+import {resolveFile, io, isWindows, filterAsync, homeDirectory} from "./Common";
+import {executeCommandWithShellConfig} from "../PTY";
 import * as _ from "lodash";
 
 abstract class Shell {
     abstract get executableName(): string;
     abstract get configFiles(): string[];
     abstract get noConfigSwitches(): string[];
+    abstract get executeCommandSwitches(): string[];
+    abstract get interactiveCommandSwitches(): string[];
     abstract get preCommandModifiers(): string[];
     abstract get historyFileName(): string;
+    abstract get commandExecutorPath(): string;
+    abstract get environmentCommand(): string;
+    abstract loadAliases(): Promise<string[]>;
+
+    abstract combineCommands(commands: string[]): string;
 
     async existingConfigFiles(): Promise<string[]> {
         const resolvedConfigFiles = this.configFiles.map(fileName => resolveFile(process.env.HOME, fileName));
@@ -33,7 +41,33 @@ abstract class Shell {
     }
 }
 
-class Bash extends Shell {
+abstract class UnixShell extends Shell {
+    get executeCommandSwitches() {
+        return ["-c"];
+    }
+
+    get interactiveCommandSwitches() {
+        return ["-i", "-c"];
+    }
+
+    get commandExecutorPath() {
+        return "/bin/bash";
+    }
+
+    get environmentCommand() {
+        return "env";
+    }
+
+    loadAliases() {
+        return executeCommandWithShellConfig("alias");
+    }
+
+    combineCommands(commands: string[]) {
+        return `'${commands.join("; ")}'`;
+    }
+}
+
+class Bash extends UnixShell {
     get executableName() {
         return "bash";
     }
@@ -65,7 +99,7 @@ class Bash extends Shell {
     }
 }
 
-class ZSH extends Shell {
+class ZSH extends UnixShell {
     get executableName() {
         return "zsh";
     }
@@ -105,18 +139,71 @@ class ZSH extends Shell {
     }
 }
 
+class Cmd extends Shell {
+    static get cmdPath() {
+        return Path.join(process.env.WINDIR, "System32", "cmd.exe");
+    }
+
+    get executableName() {
+        return "cmd.exe";
+    }
+
+    get configFiles() {
+        return [
+        ];
+    }
+
+    get executeCommandSwitches() {
+        return ["/c"];
+    }
+
+    get interactiveCommandSwitches() {
+        return ["/c"];
+    }
+
+    get noConfigSwitches() {
+        return [];
+    }
+
+    get preCommandModifiers(): string[] {
+        return [];
+    }
+
+    get historyFileName(): string {
+        return "";
+    }
+
+    get commandExecutorPath() {
+        return Cmd.cmdPath;
+    }
+
+    get environmentCommand() {
+        return "set";
+    }
+
+    combineCommands(commands: string[]) {
+        return `"${commands.join(" && ")}`;
+    }
+
+    async loadAliases() {
+        return [];
+    }
+}
+
 const supportedShells: Dictionary<Shell> = {
     bash: new Bash(),
-    zsh: new ZSH() ,
+    zsh: new ZSH(),
+    "cmd.exe": new Cmd(),
 };
 
 const shell = () => {
-    const shellName = basename(process.env.SHELL);
+    const shellName = process.env.SHELL ? basename(process.env.SHELL) : "";
     if (shellName in supportedShells) {
         return process.env.SHELL;
     } else {
-        console.error(`${shellName} is not supported; defaulting to /bin/bash`);
-        return "/bin/bash";
+        const defaultShell = isWindows ? Cmd.cmdPath : "/bin/bash";
+        console.error(`${shellName} is not supported; defaulting to ${defaultShell}`);
+        return defaultShell;
     }
 };