GH-1262 fix relative paths for java binaries

depends/util/include/pathutils.h

@@ -25,6 +25,18 @@ MULTIMC_UTIL_EXPORT QString PathCombine(QString path1, QString path2, QString pa
 
 MULTIMC_UTIL_EXPORT QString AbsolutePath(QString path);
 
+/**
+ * Resolve an executable
+ *
+ * Will resolve:
+ *   single executable (by name)
+ *   relative path
+ *   absolute path
+ *
+ * @return absolute path to executable or null string
+ */
+MULTIMC_UTIL_EXPORT QString ResolveExecutable(QString path);
+
 /**
  * Normalize path
  *
@@ -33,7 +45,7 @@ MULTIMC_UTIL_EXPORT QString AbsolutePath(QString path);
  *
  * Returns false if the path logic somehow filed (and normalizedPath in invalid)
  */
-QString NormalizePath(QString path);
+MULTIMC_UTIL_EXPORT QString NormalizePath(QString path);
 
 MULTIMC_UTIL_EXPORT QString RemoveInvalidFilenameChars(QString string, QChar replaceWith = '-');
 

depends/util/src/pathutils.cpp

@@ -40,6 +40,24 @@ QString AbsolutePath(QString path)
 	return QFileInfo(path).absolutePath();
 }
 
+QString ResolveExecutable(QString path)
+{
+	if (path.isEmpty())
+	{
+		return QString();
+	}
+	if(!path.contains('/'))
+	{
+		path = QStandardPaths::findExecutable(path);
+	}
+	QFileInfo pathInfo(path);
+	if(!pathInfo.exists() || !pathInfo.isExecutable())
+	{
+		return QString();
+	}
+	return pathInfo.absoluteFilePath();
+}
+
 /**
  * Normalize path
  *