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|
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2006, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.tools.nsc.util
import scala.collection.mutable.ArrayBuffer
import scala.tools.util.AbstractFile
import java.io.File
import java.io.FileNotFoundException
import java.util.StringTokenizer
/** Richer classpath abstraction than files.
* Roughly based on Eclipse's classpath abstractions.
*
* @author Sean McDirmid
*/
class ClassPath(onlyPresentation: Boolean) {
def this() = this(false)
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
override def toString() = location.toString()
}
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 name0 = name + (if (!isDir) ".class" else "")
val clazz = if (head.location == null) null
else head.location.lookupPath(name0, 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 {
val entry = new 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 (ret.entries.isEmpty) {
System.err.println("BAD_FILE: " + name + " in " + this)
null
} else ret
} else null
def isPackage: Boolean =
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 =
! (name.equals("META-INF") || name.startsWith("."))
}
class Build {
val entries = new ArrayBuffer[Entry]
def root = new Context(entries.toList)
def this(classpath: String) = {
this()
addFilesInPath(classpath)
}
def this(classpath: String, source: String, output: String,
boot: String, extdirs: String) = {
this()
addFilesInPath(boot)
addArchivesInExtDirPath(extdirs)
val clazzes = AbstractFile.getDirectory(output)
if (clazzes == null) {
System.err.println("Output location \"" + output + "\" not found")
exit(1)
}
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))
entries += output0
}
addFilesInPath(classpath)
}
def lookupPath(path: String, isDir: Boolean) = {
val ctx = root.find(path, isDir)
if (ctx == null) null
else if (ctx.entries.isEmpty) null
else if (ctx.entries.head == null) null
else ctx.entries.head.location
}
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))
}
}
}
}
override def toString() =
entries.toList.mkString("", File.pathSeparator, "")
} // class Build
}
|
