support go subpackages

lib/bootstrap.php

@@ -46,6 +46,9 @@ function main($args) {
 		if (array_key_exists('redirect', $config)) {
 			buildredirects( $config['redirect'] );
 		}
+		if (array_key_exists('golang-subpackages', $config)) {
+			buildgosubpackages( $config['golang-subpackages'] );
+		}
 	} else {
 		buildprojects($pos, array_decimate(listprojects(), $total, $pos));
 	}

lib/template.php

@@ -194,3 +194,19 @@ function buildredirects($redirects) {
 		file_put_contents(BASEDIR.'wwwroot/'.$oldname.'/index.html', $page);
 	}
 }
+
+function buildgosubpackages($packages) {
+	foreach($packages as $path => $goGetStr) {
+	
+		$page = (
+			'<meta name="go-import" content="'.hesc($goGetStr).'">'.
+			"\n".
+			redirecthtml(BASEURL)
+		);
+		
+		// new directory format only
+		mkdir_all(BASEDIR.'wwwroot/'.$path);
+		file_put_contents(BASEDIR.'wwwroot/'.$path.'/index.html', $page);
+	
+	}
+}

lib/util.php

@@ -109,6 +109,11 @@ function hesc($sz) {
 	return @htmlentities($sz, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
 }
 
+function mkdir_all($path) {
+	$epath = escapeshellarg($path);
+	`mkdir -p ${epath}`;
+}
+
 function text2html($sz) {
 
 	$identity = function($sz) {