fix(output): preserve directory structure in output (fix issue runegan#13)

Change-Id: Ic6da54ffac9ce8e19e63a6a08d63858079f434d1

Author: smhagit

command.js

@@ -8,6 +8,7 @@ const log = require( './src/logger' )
 const optionDefinitions = [
 	{ name: 'input', alias: 'i', type: String, multiple: true },
 	{ name: 'output', alias: 'o', type: String },
+	{ name: 'preserve', alias: 'p', type: Boolean },
 	{ name: 'verbose', alias: 'v', type: Boolean },
 	{ name: 'debug', type: Boolean },
 	{ name: 'help', alias: 'h', type: Boolean }
@@ -30,7 +31,7 @@ if ( options.help ) {
 	if ( !options.input || !options.output ) {
 		showUsage()
 	}
-	jsxbin( options.input, options.output )
+	jsxbin(options.input, options.output, options.preserve || false )
 		.catch( log.error )
 }
 
@@ -56,6 +57,11 @@ function showUsage() {
 					typeLabel: '{underline file}|{underline folder}',
 					description: 'The file or folder where the converted file will be placed'
 				},
+				{
+					name: 'preserve',
+					alias: 'p',
+					description: 'Preserve the directory structure in output (if input is a directory)'
+				},
 				{
 					name: 'verbose',
 					alias: 'v',

index.js

@@ -26,13 +26,17 @@ module.exports.getOutputPaths = getOutputPaths
  * @return {Promise} A Promise that returns an array of file paths to the
  *         converted files
  */
-function jsxbin( inputPaths, outputPath ) {
+function jsxbin(inputPaths, outputPath, preserveStructure = false ) {
 	if ( !Array.isArray( inputPaths ) && typeof inputPaths === 'object' ) {
 		const options = inputPaths
 		inputPaths = options.input
 		outputPath = options.output
 	}
 
+	// This is the basePath of the inputPath to make sure the nested directory 
+	// structure can be preserved in outputPath
+	const baseInputPath = path.dirname(path.join(process.cwd(), inputPaths[0]));
+
 	// Debug some values
 	log.debug( `Current dir: ${process.cwd()}` )
 	log.debug( 'arguments', { inputPaths, outputPath })
@@ -44,14 +48,18 @@ function jsxbin( inputPaths, outputPath ) {
 	// correct value, an array of absolute paths, that can be used in the
 	// ESTK script.
 	return getInputPaths( inputPaths )
-		.then( inputPaths => {
+		.then(async inputPaths => {
 			input = inputPaths
 
 			// We also have to convert outputPath into an array of absolute paths
-			output = getOutputPaths( input, outputPath )
+			output = getOutputPaths(input, outputPath, (preserveStructure ? baseInputPath : null) )
 			if ( outputPath === undefined ) {
 				outputPath = output[0]
 			}
+
+			if (preserveStructure) {
+				await createDir(output.map(outPath => path.dirname(outPath)));
+			}
 		})
 
 	// We have to create the output folder if it does not exist
@@ -109,7 +117,7 @@ function getInputPaths( inputPaths ) {
 	return Promise.all( globPromises ).then( () => allPaths )
 }
 
-function getOutputPaths( inputPaths, outputPath ) {
+function getOutputPaths(inputPaths, outputPath, baseInputPath ) {
 	const output = []
 
 	if ( Array.isArray( outputPath ) ) {
@@ -151,7 +159,13 @@ function getOutputPaths( inputPaths, outputPath ) {
 			// Replace the extension of the filename with jsxbin and put it
 			// in the output directory
 			const fileName = replaceExtension( filePath, 'jsxbin' )
-			output.push( path.join( outputPath, fileName ) )
+
+			if (baseInputPath) {
+				const subdirPath = path.dirname(filePath.replace(baseInputPath, ''))
+				output.push(path.join(outputPath, subdirPath, fileName))
+			} else {
+				output.push(path.join(outputPath, fileName))
+			}
 		})
 	}
 	return output