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/* __ *\
** ________ ___ / / ___ Scala Ant Tasks **
** / __/ __// _ | / / / _ | (c) 2005-2011, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.tools.ant
import java.io.File
import org.apache.tools.ant.{BuildException, Project}
import org.apache.tools.ant.types.{Path, Reference}
import org.apache.tools.ant.util.{FileUtils, GlobPatternMapper}
import scala.tools.nsc.Global
import scala.tools.nsc.doc.Settings
import scala.tools.nsc.reporters.{Reporter, ConsoleReporter}
/** An Ant task to document Scala code.
*
* This task can take the following parameters as attributes:
* - `srcdir` (mandatory),
* - `srcref`,
* - `destdir`,
* - `classpath`,
* - `classpathref`,
* - `sourcepath`,
* - `sourcepathref`,
* - `bootclasspath`,
* - `bootclasspathref`,
* - `extdirs`,
* - `extdirsref`,
* - `encoding`,
* - `doctitle`,
* - `header`,
* - `footer`,
* - `top`,
* - `bottom`,
* - `addparams`,
* - `deprecation`,
* - `docgenerator`,
* - `docrootcontent`,
* - `unchecked`.
*
* It also takes the following parameters as nested elements:
* - `src` (for srcdir),
* - `classpath`,
* - `sourcepath`,
* - `bootclasspath`,
* - `extdirs`.
*
* @author Gilles Dubochet, Stephane Micheloud
*/
class Scaladoc extends ScalaMatchingTask {
/** The unique Ant file utilities instance to use in this task. */
private val fileUtils = FileUtils.getFileUtils()
/*============================================================================*\
** Ant user-properties **
\*============================================================================*/
abstract class PermissibleValue {
val values: List[String]
def isPermissible(value: String): Boolean =
(value == "") || values.exists(_.startsWith(value))
}
/** Defines valid values for the deprecation and
* unchecked properties.
*/
object Flag extends PermissibleValue {
val values = List("yes", "no", "on", "off")
}
/** The directories that contain source files to compile. */
private var origin: Option[Path] = None
/** The directory to put the compiled files in. */
private var destination: Option[File] = None
/** The class path to use for this compilation. */
private var classpath: Option[Path] = None
/** The source path to use for this compilation. */
private var sourcepath: Option[Path] = None
/** The boot class path to use for this compilation. */
private var bootclasspath: Option[Path] = None
/** The external extensions path to use for this compilation. */
private var extdirs: Option[Path] = None
/** The character encoding of the files to compile. */
private var encoding: Option[String] = None
/** The fully qualified name of a doclet class, which will be used to generate the documentation. */
private var docgenerator: Option[String] = None
/** The file from which the documentation content of the root package will be taken */
private var docrootcontent: Option[File] = None
/** The document title of the generated HTML documentation. */
private var doctitle: Option[String] = None
/** The document footer of the generated HTML documentation. */
private var docfooter: Option[String] = None
/** The document version, to be added to the title. */
private var docversion: Option[String] = None
/** Instruct the compiler to generate links to sources */
private var docsourceurl: Option[String] = None
/** Point scaladoc at uncompilable sources. */
private var docUncompilable: Option[String] = None
/** Instruct the compiler to use additional parameters */
private var addParams: String = ""
/** Instruct the compiler to generate deprecation information. */
private var deprecation: Boolean = false
/** Instruct the compiler to generate unchecked information. */
private var unchecked: Boolean = false
/*============================================================================*\
** Properties setters **
\*============================================================================*/
/** Sets the srcdir attribute. Used by Ant.
*
* @param input The value of origin.
*/
def setSrcdir(input: Path) {
if (origin.isEmpty) origin = Some(input)
else origin.get.append(input)
}
/** Sets the origin as a nested src Ant parameter.
*
* @return An origin path to be configured.
*/
def createSrc(): Path = {
if (origin.isEmpty) origin = Some(new Path(getProject()))
origin.get.createPath()
}
/** Sets the origin as an external reference Ant parameter.
*
* @param input A reference to an origin path.
*/
def setSrcref(input: Reference) {
createSrc().setRefid(input)
}
/** Sets the destdir attribute. Used by Ant.
*
* @param input The value of destination.
*/
def setDestdir(input: File) {
destination = Some(input)
}
/** Sets the classpath attribute. Used by Ant.
*
* @param input The value of classpath.
*/
def setClasspath(input: Path) {
if (classpath.isEmpty) classpath = Some(input)
else classpath.get.append(input)
}
/** Sets the classpath as a nested classpath Ant parameter.
*
* @return A class path to be configured.
*/
def createClasspath(): Path = {
if (classpath.isEmpty) classpath = Some(new Path(getProject()))
classpath.get.createPath()
}
/** Sets the classpath as an external reference Ant parameter.
*
* @param input A reference to a class path.
*/
def setClasspathref(input: Reference) =
createClasspath().setRefid(input)
/** Sets the sourcepath attribute. Used by Ant.
*
* @param input The value of sourcepath.
*/
def setSourcepath(input: Path) =
if (sourcepath.isEmpty) sourcepath = Some(input)
else sourcepath.get.append(input)
/** Sets the sourcepath as a nested sourcepath Ant parameter.
*
* @return A source path to be configured.
*/
def createSourcepath(): Path = {
if (sourcepath.isEmpty) sourcepath = Some(new Path(getProject()))
sourcepath.get.createPath()
}
/** Sets the sourcepath as an external reference Ant parameter.
*
* @param input A reference to a source path.
*/
def setSourcepathref(input: Reference) =
createSourcepath().setRefid(input)
/** Sets the bootclasspath attribute. Used by Ant.
*
* @param input The value of bootclasspath.
*/
def setBootclasspath(input: Path) =
if (bootclasspath.isEmpty) bootclasspath = Some(input)
else bootclasspath.get.append(input)
/** Sets the bootclasspath as a nested sourcepath Ant
* parameter.
*
* @return A source path to be configured.
*/
def createBootclasspath(): Path = {
if (bootclasspath.isEmpty) bootclasspath = Some(new Path(getProject()))
bootclasspath.get.createPath()
}
/** Sets the bootclasspath as an external reference Ant
* parameter.
*
* @param input A reference to a source path.
*/
def setBootclasspathref(input: Reference) {
createBootclasspath().setRefid(input)
}
/** Sets the external extensions path attribute. Used by Ant.
*
* @param input The value of extdirs.
*/
def setExtdirs(input: Path) {
if (extdirs.isEmpty) extdirs = Some(input)
else extdirs.get.append(input)
}
/** Sets the extdirs as a nested sourcepath Ant parameter.
*
* @return An extensions path to be configured.
*/
def createExtdirs(): Path = {
if (extdirs.isEmpty) extdirs = Some(new Path(getProject()))
extdirs.get.createPath()
}
/** Sets the extdirs as an external reference Ant parameter.
*
* @param input A reference to an extensions path.
*/
def setExtdirsref(input: Reference) {
createExtdirs().setRefid(input)
}
/** Sets the encoding attribute. Used by Ant.
*
* @param input The value of encoding.
*/
def setEncoding(input: String) {
encoding = Some(input)
}
/** Sets the docgenerator attribute.
*
* @param input A fully qualified class name of a doclet.
*/
def setDocgenerator(input: String) {
docgenerator = Some(input)
}
/**
* Sets the `docrootcontent` attribute.
*
* @param input The file from which the documentation content of the root
* package will be taken.
*/
def setDocrootcontent(input : File) {
docrootcontent = Some(input)
}
/** Sets the `docversion` attribute.
*
* @param input The value of docversion.
*/
def setDocversion(input: String) {
docversion = Some(input)
}
/** Sets the docsourceurl attribute.
*
* @param input The value of docsourceurl.
*/
def setDocsourceurl(input: String) {
docsourceurl = Some(input)
}
/** Sets the doctitle attribute.
*
* @param input The value of doctitle.
*/
def setDoctitle(input: String) {
doctitle = Some(input)
}
/** Sets the docfooter attribute.
*
* @param input The value of docfooter.
*/
def setDocfooter(input: String) {
docfooter = Some(input)
}
/** Set the addparams info attribute.
*
* @param input The value for addparams.
*/
def setAddparams(input: String) {
addParams = input
}
/** Set the deprecation info attribute.
*
* @param input One of the flags yes/no or on/off.
*/
def setDeprecation(input: String) {
if (Flag.isPermissible(input))
deprecation = "yes".equals(input) || "on".equals(input)
else
buildError("Unknown deprecation flag '" + input + "'")
}
/** Set the unchecked info attribute.
*
* @param input One of the flags yes/no or on/off.
*/
def setUnchecked(input: String) {
if (Flag.isPermissible(input))
unchecked = "yes".equals(input) || "on".equals(input)
else
buildError("Unknown unchecked flag '" + input + "'")
}
def setDocUncompilable(input: String) {
docUncompilable = Some(input)
}
/*============================================================================*\
** Properties getters **
\*============================================================================*/
/** Gets the value of the classpath attribute in a
* Scala-friendly form.
*
* @return The class path as a list of files.
*/
private def getClasspath: List[File] =
if (classpath.isEmpty) buildError("Member 'classpath' is empty.")
else classpath.get.list().toList.map(nameToFile)
/** Gets the value of the origin attribute in a Scala-friendly
* form.
*
* @return The origin path as a list of files.
*/
private def getOrigin: List[File] =
if (origin.isEmpty) buildError("Member 'origin' is empty.")
else origin.get.list().toList.map(nameToFile)
/** Gets the value of the destination attribute in a
* Scala-friendly form.
*
* @return The destination as a file.
*/
private def getDestination: File =
if (destination.isEmpty) buildError("Member 'destination' is empty.")
else existing(getProject().resolveFile(destination.get.toString))
/** Gets the value of the sourcepath attribute in a
* Scala-friendly form.
*
* @return The source path as a list of files.
*/
private def getSourcepath: List[File] =
if (sourcepath.isEmpty) buildError("Member 'sourcepath' is empty.")
else sourcepath.get.list().toList.map(nameToFile)
/** Gets the value of the bootclasspath attribute in a
* Scala-friendly form.
*
* @return The boot class path as a list of files.
*/
private def getBootclasspath: List[File] =
if (bootclasspath.isEmpty) buildError("Member 'bootclasspath' is empty.")
else bootclasspath.get.list().toList.map(nameToFile)
/** Gets the value of the extdirs attribute in a
* Scala-friendly form.
*
* @return The extensions path as a list of files.
*/
private def getExtdirs: List[File] =
if (extdirs.isEmpty) buildError("Member 'extdirs' is empty.")
else extdirs.get.list().toList.map(nameToFile)
/*============================================================================*\
** Compilation and support methods **
\*============================================================================*/
/** This is forwarding method to circumvent bug #281 in Scala 2. Remove when
* bug has been corrected.
*/
override protected def getDirectoryScanner(baseDir: java.io.File) =
super.getDirectoryScanner(baseDir)
/** Transforms a string name into a file relative to the provided base
* directory.
*
* @param base A file pointing to the location relative to which the name
* will be resolved.
* @param name A relative or absolute path to the file as a string.
* @return A file created from the name and the base file.
*/
private def nameToFile(base: File)(name: String): File =
existing(fileUtils.resolveFile(base, name))
/** Transforms a string name into a file relative to the build root
* directory.
*
* @param name A relative or absolute path to the file as a string.
* @return A file created from the name.
*/
private def nameToFile(name: String): File =
existing(getProject().resolveFile(name))
/** Tests if a file exists and prints a warning in case it doesn't. Always
* returns the file, even if it doesn't exist.
*
* @param file A file to test for existance.
* @return The same file.
*/
private def existing(file: File): File = {
if (!file.exists())
log("Element '" + file.toString + "' does not exist.",
Project.MSG_WARN)
file
}
/** Transforms a path into a Scalac-readable string.
*
* @param path A path to convert.
* @return A string-representation of the path like a.jar:b.jar.
*/
private def asString(path: List[File]): String =
path.map(asString).mkString("", File.pathSeparator, "")
/** Transforms a file into a Scalac-readable string.
*
* @param path A file to convert.
* @return A string-representation of the file like /x/k/a.scala.
*/
private def asString(file: File): String =
file.getAbsolutePath()
/*============================================================================*\
** The big execute method **
\*============================================================================*/
/** Initializes settings and source files */
protected def initialize: Pair[Settings, List[File]] = {
// Tests if all mandatory attributes are set and valid.
if (origin.isEmpty) buildError("Attribute 'srcdir' is not set.")
if (getOrigin.isEmpty) buildError("Attribute 'srcdir' is not set.")
if (!destination.isEmpty && !destination.get.isDirectory())
buildError("Attribute 'destdir' does not refer to an existing directory.")
if (destination.isEmpty) destination = Some(getOrigin.head)
val mapper = new GlobPatternMapper()
mapper.setTo("*.html")
mapper.setFrom("*.scala")
// Scans source directories to build up a compile lists.
// If force is false, only files were the .class file in destination is
// older than the .scala file will be used.
val sourceFiles: List[File] =
for {
originDir <- getOrigin
originFile <- {
val includedFiles =
getDirectoryScanner(originDir).getIncludedFiles()
val list = includedFiles.toList
if (list.length > 0)
log(
"Documenting " + list.length + " source file" +
(if (list.length > 1) "s" else "") +
(" to " + getDestination.toString)
)
else
log("No files selected for documentation", Project.MSG_VERBOSE)
list
}
} yield {
log(originFile, Project.MSG_DEBUG)
nameToFile(originDir)(originFile)
}
def decodeEscapes(s: String): String = {
// In Ant script characters '<' and '>' must be encoded when
// used in attribute values, e.g. for attributes "doctitle", "header", ..
// in task Scaladoc you may write:
// doctitle="<div>Scala</div>"
// so we have to decode them here.
s.replaceAll("<", "<").replaceAll(">",">")
.replaceAll("&", "&").replaceAll(""", "\"")
}
// Builds-up the compilation settings for Scalac with the existing Ant
// parameters.
val docSettings = new Settings(buildError)
docSettings.outdir.value = asString(destination.get)
if (!classpath.isEmpty)
docSettings.classpath.value = asString(getClasspath)
if (!sourcepath.isEmpty)
docSettings.sourcepath.value = asString(getSourcepath)
/*else if (origin.get.size() > 0)
settings.sourcepath.value = origin.get.list()(0)*/
if (!bootclasspath.isEmpty)
docSettings.bootclasspath.value = asString(getBootclasspath)
if (!extdirs.isEmpty) docSettings.extdirs.value = asString(getExtdirs)
if (!encoding.isEmpty) docSettings.encoding.value = encoding.get
if (!doctitle.isEmpty) docSettings.doctitle.value = decodeEscapes(doctitle.get)
if (!docfooter.isEmpty) docSettings.docfooter.value = decodeEscapes(docfooter.get)
if (!docversion.isEmpty) docSettings.docversion.value = decodeEscapes(docversion.get)
if (!docsourceurl.isEmpty) docSettings.docsourceurl.value =decodeEscapes(docsourceurl.get)
if (!docUncompilable.isEmpty) docSettings.docUncompilable.value = decodeEscapes(docUncompilable.get)
docSettings.deprecation.value = deprecation
docSettings.unchecked.value = unchecked
if (!docgenerator.isEmpty) docSettings.docgenerator.value = docgenerator.get
if (!docrootcontent.isEmpty) docSettings.docRootContent.value = docrootcontent.get.getAbsolutePath()
log("Scaladoc params = '" + addParams + "'", Project.MSG_DEBUG)
docSettings processArgumentString addParams
Pair(docSettings, sourceFiles)
}
/** Performs the compilation. */
override def execute() = {
val Pair(docSettings, sourceFiles) = initialize
val reporter = new ConsoleReporter(docSettings)
try {
val docProcessor = new scala.tools.nsc.doc.DocFactory(reporter, docSettings)
docProcessor.document(sourceFiles.map (_.toString))
if (reporter.ERROR.count > 0)
buildError(
"Document failed with " +
reporter.ERROR.count + " error" +
(if (reporter.ERROR.count > 1) "s" else "") +
"; see the documenter error output for details.")
else if (reporter.WARNING.count > 0)
log(
"Document succeeded with " +
reporter.WARNING.count + " warning" +
(if (reporter.WARNING.count > 1) "s" else "") +
"; see the documenter output for details.")
reporter.printSummary()
} catch {
case exception: Throwable if exception.getMessage ne null =>
exception.printStackTrace()
buildError("Document failed because of an internal documenter error (" +
exception.getMessage + "); see the error output for details.")
case exception =>
exception.printStackTrace()
buildError("Document failed because of an internal documenter error " +
"(no error message provided); see the error output for details.")
}
}
}
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