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|
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2006, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.tools.nsc.util;
import scala.tools.util.AbstractFile;
import scala.collection.mutable.ArrayBuffer;
import java.io.FileNotFoundException;
import java.io.File;
import java.util.StringTokenizer;
/** Richer classpath abstraction than files.
* Roughly based on Eclipse's classpath abstractions.
*
* @author Sean McDirmid
*/
class ClassPath(onlyPresentation : Boolean) {
class Source(val location : AbstractFile, val compile : Boolean) {
// assert(location != null, "cannot find source location");
// assert(location.getFile() != null, "cannot find source location " + " " + location + " " + location.getClass());
override def toString() : String = "" + location + " " + compile;
}
abstract class Entry(val location: AbstractFile) {
// assert(location != null, "cannot find classpath location");
// assert(location.getFile() != null, "cannot find classpath location " + " " + location + " " + location.getClass());
def source : Source;
}
class Output(location0 : AbstractFile, val sourceFile : AbstractFile) extends Entry(location0) {
def source = if (sourceFile != null) new Source(sourceFile, true); else null;
}
class Library(location0: AbstractFile) extends Entry(location0) {
def doc : AbstractFile = null;
def sourceFile : AbstractFile = null;
def source = if (sourceFile == null) null else new Source(sourceFile, false);
}
class Context(val entries : List[Entry]) {
def find(name : String, isDir : boolean) : Context = if (isPackage) {
def find0(entries : List[Entry]) : Context = {
if (entries.isEmpty) new Context(Nil);
else {
val ret = find0(entries.tail);
val head = entries.head;
val clazz = if (head.location == null) null;
else head.location.lookupPath(name + (if (!isDir) ".class" else ""), isDir);
val source0 = if (head.source == null) null; else {
val source1 = head.source.location.lookupPath(name + (if (isDir) "" else ".scala"), isDir);
if (source1 == null && !isDir && clazz != null) head.source.location;
else source1;
}
if (clazz == null && source0 == null) ret;
else {
object entry extends Entry(clazz) {
override def source =
if (source0 == null) null;
else new Source(source0, head.source.compile);
};
new Context(entry :: ret.entries);
}
}
}
val ret = find0(entries);
if (false && this.toString().indexOf("scala") != -1)
System.err.println("FIND " + name + " in " + this + " => " + ret);
if (ret.entries.isEmpty) {
System.err.println("BAD_FILE: " + name + " in " + this);
null;
} else ret;
} else null;
def isPackage = {
if (entries.isEmpty) false;
else if (entries.head.location != null) entries.head.location.isDirectory();
else entries.head.source.location.isDirectory();
}
def name = {
if (entries.isEmpty) "<none>";
else {
val head = entries.head;
val name = if (head.location != null) head.location.getName() else head.source.location.getName();
if (isPackage) name;
else name.substring(0, name.length() - (".class").length());
}
}
override def toString(): String = toString(entries);
def toString(entry : Entry): String =
((if (entry.location == null) "<none>";
else entry.location.toString()) +
(if (entry.source == null) ""; else " with_source=" + entry.source.location.toString()));
def toString(entries0: List[Entry]): String =
if (entries0.isEmpty) "";
else toString(entries0.head) + ":::" + toString(entries0.tail);
def isSourceFile = {
def head = entries.head;
def clazz = head.location;
def source = if (head.source == null) null else head.source.location;
def isPredef = source.getName().equals("Predef.scala");
if (entries.isEmpty || entries.isEmpty || source == null) false;
else if (!onlyPresentation && !head.source.compile) false;
else if (source.isDirectory()) false;
else if (clazz == null) true;
else if (onlyPresentation && !isPredef) true;
else if (source.lastModified() > clazz.lastModified()) true;
else false;
}
def sourceFile = if (entries.head.source != null && !entries.head.source.location.isDirectory())
entries.head.source.location else null;
def classFile = if (!isSourceFile) entries.head .location else null;
def sourcePath = if (!isSourceFile && entries.head.source != null) entries.head.source.location else null;
def validPackage(name: String): Boolean =
if (name.equals("META-INF")) false;
else if (name.startsWith(".")) false;
else true;
}
class Build {
val entries = new ArrayBuffer[Entry];
def root = new Context(entries.toList);
def this(classpath : String, source : String, output : String, boot : String, extdirs : String) = {
this();
//System.err.println("BOOT: " + boot);
//System.err.println("CLAS: " + classpath);
addFilesInPath(boot);
addArchivesInExtDirPath(extdirs);
val clazzes = AbstractFile.getDirectory(output);
if (clazzes == null) throw new FileNotFoundException("output location \"" + output + "\" not found");
val strtok = new StringTokenizer(source, File.pathSeparator);
if (!strtok.hasMoreTokens()) {
val output0 = (new Output(clazzes, null));
entries += output0;
} else while (strtok.hasMoreTokens()) {
val sources = AbstractFile.getDirectory(strtok.nextToken());
val output0 = (new Output(clazzes, sources));
//System.err.println("OUTPUT: " + output);
entries += output0;
}
addFilesInPath(classpath);
//System.err.println("CLASSPATH: " + root);
}
def library(classes : String, sources : String) = {
assert(classes != null);
val location = AbstractFile.getDirectory(classes);
val sourceFile0 = (if (sources != null) AbstractFile.getDirectory(sources) else null);
class Library0 extends Library(location) {
override def sourceFile = sourceFile0;
}
entries += new Library0()
}
private def addFilesInPath(path: String) = {
val strtok = new StringTokenizer(path, File.pathSeparator);
while (strtok.hasMoreTokens()) {
val file = AbstractFile.getDirectory(strtok.nextToken());
if (file != null) entries += (new Library(file));
}
}
private def addArchivesInExtDirPath(path: String) = {
val strtok = new StringTokenizer(path, File.pathSeparator);
while (strtok.hasMoreTokens()) {
val file = AbstractFile.getDirectory(strtok.nextToken());
val files = (if (file != null) file.list() else null);
if (files != null) while(files.hasNext()) {
val file0 = files.next().asInstanceOf[AbstractFile];
val name = file0.getName();
if (name.endsWith(".jar") || name.endsWith(".zip")) {
val archive = AbstractFile.getDirectory(new File(file.getFile(), name));
if (archive != null) entries += (new Library(archive));
}
}
}
}
} // class Build
}
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