Do not lowercase source extension input

Fix warnings in parseExtensionSource in utils.ts

Fix add_lib_log in source.sh

src/scripts/ext/source.sh

@@ -13,8 +13,7 @@ parse_args() {
 # Function to log if a library is installed
 add_lib_log() {
   lib=$1
-  output=$2
-  if [ "x$output" != "x" ]; then
+  if check_lib "$lib"; then
     add_log "${tick:?}" "$lib" "Installed"
   else
     add_log "${cross:?}" "$lib" "Could not install $lib"

src/utils.ts

@@ -247,6 +247,9 @@ export async function extensionArray(
       return extension_csv
         .split(',')
         .map(function (extension: string) {
+          if (/.+-.+\/.+@.+/.test(extension)) {
+            return extension;
+          }
           return extension
             .trim()
             .toLowerCase()
@@ -443,13 +446,14 @@ export async function customPackage(
  * Function to extension input for installation from source.
  *
  * @param extension
+ * @param prefix
  */
 export async function parseExtensionSource(
   extension: string,
   prefix: string
 ): Promise<string> {
   // Groups: extension, domain url, org, repo, release
-  const regex = /(\w+)-(.+:\/\/.+(?:[.:].+)+(?:\/))?([\w.-]+)\/([\w.-]+)@(.+)/;
+  const regex = /(\w+)-(.+:\/\/.+(?:[.:].+)+\/)?([\w.-]+)\/([\w.-]+)@(.+)/;
   const matches = regex.exec(extension) as RegExpExecArray;
   matches[2] = matches[2] ? matches[2].slice(0, -1) : 'https://github.com';
   return await joins(