Script runs on Windows and OS X

extras/AdobeAfterEffects/rhubarb.jsx

@@ -106,8 +106,7 @@ function isFrameVisible(compItem, frameNumber) {
 	return Boolean(result);
 }
 
-// On Windows, this is C:\ProgramData
-var settingsFilePath = Folder.appData.fullName + '/rhubarb-ae-settings.json';
+var settingsFilePath = Folder.userData.fullName + '/rhubarb-ae-settings.json';
 
 function readTextFile(fileOrPath) {
 	var filePath = fileOrPath.fsName || fileOrPath;
@@ -156,17 +155,51 @@ function writeSettingsFile(settings) {
 	}
 }
 
-function exec(command, options) {
-	var showWindow = (options || {}).showWindow;
 var osIsWindows = (system.osName || $.os).match(/windows/i);
 
-	// On Windows, calling a console application directly will hide the console window. Calling it
-	// through cmd.exe will show it.
-	// I don't know whether there's something similar for OS X. I only own the Windows version of
-	// After Effects.
-	return system.callSystem(showWindow && osIsWindows ? 'cmd /C "' + command + '"' : command);
+// Depending on the operating system, the syntax for escaping command-line arguments differs.
+function cliEscape(argument) {
+	return osIsWindows
+		? '"' + argument + '"'
+		: "'" + argument.replace(/'/g, "'\\''") + "'";
 }
 
+function exec(command) {
+	return system.callSystem(command);
+}
+
+function execInWindow(command) {
+	if (osIsWindows) {
+		system.callSystem('cmd /C "' + command + '"');
+	} else {
+		// I didn't think it could be so complicated on OS X to open a new Terminal window,
+		// execute a command, then close the Terminal window.
+		// If you know a better solution, let me know!
+		var escapedCommand = command.replace(/"/g, '\\"');
+		var appleScript = '\
+			tell application "Terminal" \
+				-- Quit terminal \
+				-- Yes, that\'s undesirable if there was an open window before. \
+				-- But all solutions I could find were at least as hacky. \
+				quit \
+				-- Open terminal \
+				activate \
+				-- Run command in new tab \
+				set newTab to do script ("' + escapedCommand + '") \
+				-- Wait until command is done \
+				tell newTab \
+					repeat while busy \
+						delay 0.1 \
+					end repeat \
+				end tell \
+				quit \
+			end tell';
+		exec('osascript -e ' + cliEscape(appleScript));
+	}
+}
+
+var rhubarbPath = osIsWindows ? 'rhubarb.exe' : '/usr/local/bin/rhubarb';
+
 // ExtendScript's resource strings are a pain to write.
 // This function allows them to be written in JSON notation, then converts them into the required
 // format.
@@ -396,7 +429,7 @@ function createDialogWindow() {
 	selectByTextOrFirst(controls.mouthComp, settings.mouthComp);
 	extendedMouthShapeNames.forEach(function(shapeName) {
 		controls['mouthShape' + shapeName].value =
-			settings.extendedMouthShapes[shapeName.toLowerCase()];
+			(settings.extendedMouthShapes || {})[shapeName.toLowerCase()];
 	});
 	selectByTextOrFirst(controls.targetFolder, settings.targetFolder);
 	controls.frameRate.text = settings.frameRate || '';
@@ -510,20 +543,22 @@ function createDialogWindow() {
 		}
 
 		// Check for correct Rhubarb version
-		var version = exec('rhubarb --version', { showWindow: false }) || '';
+		var version = exec(rhubarbPath + ' --version') || '';
 		var match = version.match(/Rhubarb Lip Sync version ((\d+)\.(\d+).(\d+))/);
 		if (!match) {
-			var isWindows = (system.osName || $.os).match(/windows/i);
-			return 'Cannot find executable file "' + (isWindows ? 'rhubarb.exe' : 'rhubarb') + '". '
-				+ 'Make sure your PATH environment variable contains the Rhubarb Lip-Sync '
-				+ 'application directory.';
+			var instructions = osIsWindows
+				? 'Make sure your PATH environment variable contains the Rhubarb Lip-Sync '
+					+ 'application directory.'
+				: 'Make sure you have created this file as a symbolic link to the Rhubarb Lip-Sync '
+					+ 'executable (rhubarb).';
+			return 'Cannot find executable file "' + rhubarbPath + '". \n' + instructions;
 		}
 		var versionString = match[1];
 		var major = Number(match[2]);
 		var minor = Number(match[3]);
 		if (major != 1 || minor < 6) {
 			return 'This script requires Rhubarb Lip-Sync 1.6.0 or a later 1.x version. '
-				'Your installed version is ' + versionString + ', which is not compatible.';
+				+ 'Your installed version is ' + versionString + ', which is not compatible.';
 		}
 	}
 
@@ -539,17 +574,17 @@ function createDialogWindow() {
 			writeTextFile(dialogFile, dialogText);
 
 			// Create command line
-			var commandLine = 'rhubarb'
-				+ ' --dialogFile "' + dialogFile.fsName + '"'
+			var commandLine = rhubarbPath
+				+ ' --dialogFile ' + cliEscape(dialogFile.fsName)
 				+ ' --exportFormat json'
-				+ ' --extendedShapes "' + extendedMouthShapeNames.join('') + '"'
-				+ ' --logFile "' + logFile.fsName + '"'
+				+ ' --extendedShapes ' + cliEscape(extendedMouthShapeNames.join(''))
+				+ ' --logFile ' + cliEscape(logFile.fsName)
 				+ ' --logLevel fatal'
-				+ ' --output "' + jsonFile.fsName + '"'
-				+ ' "' + audioFileFootage.file.fsName + '"';
+				+ ' --output ' + cliEscape(jsonFile.fsName)
+				+ ' ' + cliEscape(audioFileFootage.file.fsName);
 
 			// Run Rhubarb
-			exec(commandLine, { showWindow: true });
+			execInWindow(commandLine);
 
 			// Check log for fatal errors
 			if (logFile.exists) {