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/*
* Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.installer;
import static java.util.Arrays.asList;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URLDecoder;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import lombok.Lombok;
/** Utility class for doing various OS-specific operations related to finding Eclipse installations. */
class EclipseFinder {
private EclipseFinder() {
//Prevent instantiation.
}
/**
* Returns a File object pointing to our own jar file. Will obviously fail if the installer was started via
* a jar that wasn't accessed via the file-system, or if its started via e.g. unpacking the jar.
*/
static File findOurJar() {
try {
URI uri = EclipseFinder.class.getResource("/" + EclipseFinder.class.getName().replace('.', '/') + ".class").toURI();
Pattern p = Pattern.compile("^jar:file:([^\\!]+)\\!.*\\.class$");
Matcher m = p.matcher(uri.toString());
if ( !m.matches() ) return new File("lombok.jar");
String rawUri = m.group(1);
return new File(URLDecoder.decode(rawUri, Charset.defaultCharset().name()));
} catch ( Exception e ) {
throw Lombok.sneakyThrow(e);
}
}
private static final AtomicBoolean windowsDriveInfoLibLoaded = new AtomicBoolean(false);
private static void loadWindowsDriveInfoLib() throws IOException, FileNotFoundException {
if ( !windowsDriveInfoLibLoaded.compareAndSet(false, true) ) return;
InputStream in = EclipseFinder.class.getResourceAsStream("WindowsDriveInfo.dll");
File dllFile;
try {
File temp = File.createTempFile("lombok", ".mark");
dllFile = new File(temp.getParentFile(), "lombok-WindowsDriveInfo.dll");
temp.delete();
dllFile.deleteOnExit();
try {
FileOutputStream out = new FileOutputStream(dllFile);
try {
byte[] b = new byte[32000];
while ( true ) {
int r = in.read(b);
if ( r == -1 ) break;
out.write(b, 0, r);
}
} finally {
out.close();
}
} catch ( IOException e ) {
if ( dllFile.exists() && dllFile.canRead() ) {
//Fall through - if there is a file named lombok-WindowsDriveInfo.dll, we'll try it.
} else throw e;
}
} finally {
in.close();
}
System.load(dllFile.getAbsolutePath());
}
/**
* Returns all drive letters on windows, regardless of what kind of drive is represented.
*
* @return A List of drive letters, such as ["A", "C", "D", "X"].
*/
static List<String> getDrivesOnWindows() throws Throwable {
loadWindowsDriveInfoLib();
List<String> drives = new ArrayList<String>();
WindowsDriveInfo info = new WindowsDriveInfo();
for ( String drive : info.getLogicalDrives() ) {
if ( info.isFixedDisk(drive) ) drives.add(drive);
}
return drives;
}
/**
* Returns a list of paths of Eclipse installations.
* Eclipse installations are found by checking for the existence of 'eclipse.exe' in the following locations:
*
* X:\*Program Files*\*Eclipse*
* X:\*Eclipse*
*
* Where 'X' is tried for all local disk drives, unless there's a problem calling fsutil, in which case only
* C: is tried.
*
* @return A List of directories that contain 'eclipse.exe'.
*/
static List<String> findEclipseOnWindows() {
List<String> eclipses = new ArrayList<String>();
List<String> driveLetters = asList("C");
try {
driveLetters = getDrivesOnWindows();
} catch ( Throwable ignore ) {
ignore.printStackTrace();
}
for ( String letter : driveLetters ) {
File f = new File(letter + ":\\");
for ( File dir : f.listFiles() ) {
if ( !dir.isDirectory() ) continue;
if ( dir.getName().toLowerCase().contains("eclipse") ) {
String eclipseLocation = findEclipseOnWindows1(dir);
if ( eclipseLocation != null ) eclipses.add(eclipseLocation);
}
if ( dir.getName().toLowerCase().contains("program files") ) {
for ( File dir2 : dir.listFiles() ) {
if ( !dir2.isDirectory() ) continue;
if ( dir.getName().toLowerCase().contains("eclipse") ) {
String eclipseLocation = findEclipseOnWindows1(dir);
if ( eclipseLocation != null ) eclipses.add(eclipseLocation);
}
}
}
}
}
return eclipses;
}
/** Checks if the provided directory contains 'eclipse.exe', and if so, returns the directory, otherwise null. */
private static String findEclipseOnWindows1(File dir) {
if ( new File(dir, "eclipse.exe").isFile() ) return dir.getAbsolutePath();
return null;
}
/**
* Calls the OS-dependent 'find Eclipse' routine. If the local OS doesn't have a routine written for it,
* null is returned.
*
* @return List of directories that contain the Eclipse executable.
*/
static List<String> findEclipses() {
switch ( getOS() ) {
case WINDOWS:
return findEclipseOnWindows();
case MAC_OS_X:
return findEclipseOnMac();
default:
case UNIX:
return null;
}
}
static enum OS {
MAC_OS_X, WINDOWS, UNIX;
}
static OS getOS() {
String prop = System.getProperty("os.name", "").toLowerCase();
if ( prop.matches("^.*\\bmac\\b.*$") ) return OS.MAC_OS_X;
if ( prop.matches("^.*\\bwin(dows)\\b.*$") ) return OS.WINDOWS;
return OS.UNIX;
}
/**
* Returns the proper name of the executable for the local OS.
*
* @return 'Eclipse.app' on OS X, 'eclipse.exe' on Windows, and 'eclipse' on other OSes.
*/
static String getEclipseExecutableName() {
switch ( getOS() ) {
case WINDOWS:
return "eclipse.exe";
case MAC_OS_X:
return "Eclipse.app";
default:
case UNIX:
return "eclipse";
}
}
/**
* Scans /Applications for any folder named 'Eclipse'
*/
static List<String> findEclipseOnMac() {
List<String> eclipses = new ArrayList<String>();
for ( File dir : new File("/Applications").listFiles() ) {
if ( !dir.isDirectory() ) continue;
if ( dir.getName().toLowerCase().equals("eclipse.app") ) {
//This would be kind of an unorthodox Eclipse installation, but if Eclipse ever
//moves to this more maclike installation concept, our installer can still handle it.
eclipses.add("/Applications");
}
if ( dir.getName().toLowerCase().contains("eclipse") ) {
if ( new File(dir, "Eclipse.app").exists() ) eclipses.add(dir.toString());
}
}
return eclipses;
}
}
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