adding support for composer's 'no interaction' mode

Author: dmolsen

src/PatternLab/Config.php

@@ -329,9 +329,16 @@ public static function updateConfigOption($optionName,$optionValue, $force = fal
 		if (is_string($optionValue) && strpos($optionValue,"<prompt>") !== false) {
 
 			// prompt for input using the supplied query
-			$prompt  = str_replace("</prompt>","",str_replace("<prompt>","",$optionValue));
 			$options = "";
-			$input   = Console::promptInput($prompt,$options,false);
+			$default = "";
+			$prompt  = str_replace("</prompt>","",str_replace("<prompt>","",$optionValue));
+			if (strpos($prompt, "<default>") !== false) {
+				$default = explode("<default>",$prompt);
+				$default = explode("</default>",$default[1]));
+				$default = $default[0];
+			}
+			
+			$input = Console::promptInput($prompt,$options,$default,false);
 
 			self::writeUpdateConfigOption($optionName,$input);
 			Console::writeTag("ok","config option ".$optionName." updated...", false, true);
@@ -352,7 +359,7 @@ public static function updateConfigOption($optionName,$optionValue, $force = fal
 				// prompt for input
 				$prompt  = "update the config option <desc>".$optionName." (".$currentOptionValue.")</desc> with the value <desc>".$newOptionValue."</desc>?";
 				$options = "Y/n";
-				$input   = Console::promptInput($prompt,$options);
+				$input   = Console::promptInput($prompt,$options,"Y");
 
 				if ($input == "y") {
 					self::writeUpdateConfigOption($optionName,$optionValue);

src/PatternLab/Console.php

@@ -532,12 +532,13 @@ public static function writeWarning($line,$doubleSpace = false,$doubleBreak = fa
 	* Prompt the user for some input
 	* @param  {String}        the text for the prompt
 	* @param  {String}        the text for the options
+	* @param  {String}        the text for the default option
 	* @param  {Boolean}       if we should lowercase the input before sending it back
 	* @param  {String}        the tag that should be used when drawing the content
 	*
 	* @return {String}        trimmed input given by the user
 	*/
-	public static function promptInput($prompt = "", $options = "", $lowercase = true, $tag = "info") {
+	public static function promptInput($prompt = "", $options = "", $default = "", $lowercase = true, $tag = "info") {
 
 		// check prompt
 		if (empty($prompt)) {
@@ -552,11 +553,18 @@ public static function promptInput($prompt = "", $options = "", $lowercase = tru
 		// make sure no end-of-line is added
 		$prompt .= " <nophpeol>";
 
-		// open the terminal and wait for feedback
-		$stdin = fopen("php://stdin", "r");
-		Console::writeTag($tag,$prompt);
-		$input = trim(fgets($stdin));
-		fclose($stdin);
+		// make sure we're not running in no interaction mode. if so just use the default for the input
+		if ((isset($_ENV['COMPOSER_NO_INTERACTION']) && $_ENV['COMPOSER_NO_INTERACTION'])) {
+			$input = $default;
+		} else {
+			
+			// open the terminal and wait for feedback
+			$stdin = fopen("php://stdin", "r");
+			Console::writeTag($tag,$prompt);
+			$input = trim(fgets($stdin));
+			fclose($stdin);
+			
+		}
 
 		// check to see if it should be lowercased before sending back
 		return ($lowercase) ? strtolower($input) : $input;

src/PatternLab/Fetch.php

@@ -91,8 +91,8 @@ public function fetchStarterKit($starterkit = "") {
 		Console::writeInfo("finished downloading the starterkit...");
 
 		// make sure the temp dir exists before copying into it
-		if (!is_dir($tempDirSK)) { 
-			mkdir($tempDirSK); 
+		if (!is_dir($tempDirSK)) {
+			mkdir($tempDirSK);
 		}
 
 		// extract, if the zip is supposed to be unpacked do that (e.g. stripdir)
@@ -195,7 +195,7 @@ protected function mirrorDist($sourceDir, $tempDirDist) {
 
 			$prompt    = "a starterkit is already installed. merge the new files with it or replace it?";
 			$options   = "M/r";
-			$input     = Console::promptInput($prompt,$options);
+			$input     = Console::promptInput($prompt,$options,"M");
 			$fsOptions = ($input == "r") ? array("delete" => true, "override" => true) : array("delete" => false, "override" => false);
 
 		}

src/PatternLab/InstallerUtil.php

@@ -484,7 +484,7 @@ protected static function pathExists($packageName,$path) {
 				// prompt for input using the supplied query
 				$prompt  = "the path <path>".$humanReadablePath."</path> already exists. merge or replace with the contents of <path>".$packageName."</path> package?";
 				$options = "M/r";
-				$input   = Console::promptInput($prompt,$options);
+				$input   = Console::promptInput($prompt,$options,"M");
 
 				if ($input == "m") {
 					Console::writeTag("ok","contents of <path>".$humanReadablePath."</path> have been merged with the package's content...", false, true);
@@ -548,7 +548,7 @@ protected static function promptStarterKitInstall($starterKitSuggestions) {
 
 		$prompt  = "choose an option or hit return to skip:";
 		$options = "(ex. 1)";
-		$input   = Console::promptInput($prompt,$options);
+		$input   = Console::promptInput($prompt,$options,"1");
 		$result  = (int)$input - 1;
 
 		if (isset($starterKitSuggestions[$result])) {