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/*
* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package compiler.lib.compile_framework;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.Path;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
/**
* Utility class, with many helper methods for the Compile Framework.
*/
class Utils {
private static final boolean VERBOSE = Boolean.getBoolean("CompileFrameworkVerbose");
/**
* Verbose printing, enabled with {@code -DCompileFrameworkVerbose=true}.
*/
public static void printlnVerbose(String s) {
if (VERBOSE) {
System.out.println(s);
}
}
/**
* Create a temporary directory with a unique name to avoid collisions
* with multi-threading. Used to create the sources and classes directories. Since they
* are unique even across threads, the Compile Framework is multi-threading safe, i.e.
* it does not have collisions if two instances generate classes with the same name.
*/
public static Path makeUniqueDir(String prefix) {
try {
return Files.createTempDirectory(Paths.get("."), prefix);
} catch (Exception e) {
throw new InternalCompileFrameworkException("Could not set up temporary directory", e);
}
}
/**
* Get all paths in the classpath.
*/
public static String[] getClassPaths() {
String separator = File.pathSeparator;
return System.getProperty("java.class.path").split(separator);
}
/**
* Return the classpath, appended with the {@code classesDir}.
*/
public static String getEscapedClassPathAndClassesDir(Path classesDir) {
String cp = System.getProperty("java.class.path") +
File.pathSeparator +
classesDir.toAbsolutePath();
// Escape the backslash for Windows paths. We are using the path in the
// command-line and Java code, so we always want it to be escaped.
return cp.replace("\\", "\\\\");
}
}
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