make sure to shell escape the arguments for the preset tasks

packages/just-task-preset/src/exec.ts

@@ -15,6 +15,19 @@ export function exec(cmd: string, opts: ExecOptions & { stdout?: NodeJS.Writable
   });
 }
 
+// Taken from https://github.com/xxorax/node-shell-escape/blob/master/shell-escape.js
+// However, we needed to use double quotes because that's the norm in more platforms
+export function encodeArgs(cmdArgs: string[]) {
+  return cmdArgs.map(arg => {
+    if (/[^A-Za-z0-9_\/:=-]/.test(arg)) {
+      arg = '"' + arg.replace(/"/g, '"\\"') + '"';
+      arg = arg.replace(/^(?:"")+/g, '').replace(/\\"""/g, '\\"');
+    }
+
+    return arg;
+  });
+}
+
 export function spawn(
   cmd: string,
   args: ReadonlyArray<string> = [],

packages/just-task-preset/src/jestTask.ts

@@ -1,5 +1,5 @@
 import { resolve, logger, resolveCwd } from 'just-task';
-import { exec } from './exec';
+import { exec, encodeArgs } from './exec';
 import { fstat, existsSync } from 'fs';
 
 export interface IJestTaskOptions {
@@ -18,7 +18,7 @@ export function jestTask(options: IJestTaskOptions = {}) {
     const jestCmd = resolve('jest/bin/jest.js');
     const configFile = options.config || jestConfigFile;
 
-    if (configFile && existsSync(configFile)) {
+    if (configFile && jestCmd && existsSync(configFile)) {
       logger.info(`Running Jest`);
       const args = [
         `--config ${configFile}`,
@@ -32,7 +32,7 @@ export function jestTask(options: IJestTaskOptions = {}) {
         .filter(arg => !!arg)
         .join(' ');
 
-      const cmd = [process.execPath, jestCmd, args].join(' ');
+      const cmd = encodeArgs([process.execPath, jestCmd, args]).join(' ');
       logger.info(cmd);
       return exec(cmd, { stdout: process.stdout, stderr: process.stderr });
     } else {

packages/just-task-preset/src/tscTask.ts

@@ -1,6 +1,6 @@
 import * as ts from 'typescript';
 import { resolve, logger, resolveCwd } from 'just-task';
-import { exec } from './exec';
+import { exec, encodeArgs } from './exec';
 import path from 'path';
 import fs from 'fs';
 
@@ -35,7 +35,7 @@ export function tscTask(options: CompilerOptions) {
         [tscCmd]
       );
 
-      const cmd = [process.execPath, ...args].join(' ');
+      const cmd = encodeArgs([process.execPath, ...args]).join(' ');
       logger.info(`Executing: ${cmd}`);
       return exec(cmd);
     } else {

packages/just-task-preset/src/tslintTask.ts

@@ -1,5 +1,5 @@
 import { resolve, logger, resolveCwd } from 'just-task';
-import { exec } from './exec';
+import { exec, encodeArgs } from './exec';
 import path from 'path';
 import fs from 'fs';
 
@@ -11,13 +11,14 @@ export function tslintTask(options: ITsLintTaskOptions = {}) {
   const projectFile = resolveCwd('./tsconfig.json');
 
   return function tslint() {
-    if (projectFile && fs.existsSync(projectFile)) {
+    const tslintCmd = resolve('tslint/lib/tslintCli.js');
+
+    if (projectFile && tslintCmd && fs.existsSync(projectFile)) {
       logger.info(`Running tslint`);
-      const tslintCmd = resolve('tslint/lib/tslintCli.js');
 
       const args = ['--project', projectFile, '-t', 'stylish', '-r', path.dirname(resolve('tslint-microsoft-contrib') || '')];
 
-      const cmd = [process.execPath, tslintCmd, ...args].join(' ');
+      const cmd = encodeArgs([process.execPath, tslintCmd, ...args]).join(' ');
       logger.info(cmd);
       return exec(cmd, { stdout: process.stdout, stderr: process.stderr });
     } else {