Rework Build Parser handling

* Rework IBuildParser:
    * Remove name() method.
    * Remove enterDirectory and leaveDirectory signals.
    * Allow chaining of parsers.
 * Rename IBuildParser to IOutputParser.
 * Implement GnuMakeParser.
    * Remove entering/leaving directory related code from all other parsers
    * Move filename fixup heuristic based on entering/leaving directory
      massages from gnumake here from AbstractMakeStep.
 * Add outputParser method to ToolChain: This removes the need to map
   toolchains to BuildParser names in the BuildSteps.
 * Enhance AbstractProcessStep to accept a IOutputParser to parse its output.
 * Remove AbstractMakeStep.
 * Set the appropriate Parsers in all classes deriving from AbstractProcessStep
   and append the ToolChain's parser to the parser chain.
 * Remove BuildParserFactories: There is no more need for them.
 * Remove constants used to identify the BuildParsers.
 * Clean up some names:
    * Replace stdOut with stdOutput.
    * Replace addToTaskWindow with addTask and addToOutputWindow with
      addOutput. Do this wherever it is not yet clear that this will end up
      in the Task/Output window.

Reviewed-by: dt

src/plugins/projectexplorer/gnumakeparser.cpp

@@ -0,0 +1,95 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "gnumakeparser.h"
+#include "taskwindow.h"
+
+#include <QtCore/QDir>
+#include <QtCore/QFile>
+
+using namespace ProjectExplorer;
+
+GnuMakeParser::GnuMakeParser(const QString &dir)
+{
+    //make[4]: Entering directory `/some/dir'
+    m_makeDir.setPattern("^(?:mingw32-)?make.*: (\\w+) directory .(.+).$");
+    m_makeDir.setMinimal(true);
+    addDirectory(dir);
+}
+
+void GnuMakeParser::stdOutput(const QString &line)
+{
+    QString lne = line.trimmed();
+
+    if (m_makeDir.indexIn(lne) > -1) {
+        if (m_makeDir.cap(1) == "Leaving")
+            removeDirectory(m_makeDir.cap(2));
+        else
+            addDirectory(m_makeDir.cap(2));
+        return;
+    }
+
+    IOutputParser::stdOutput(line);
+}
+
+void GnuMakeParser::addDirectory(const QString &dir)
+{
+    if (dir.isEmpty() || m_directories.contains(dir))
+        return;
+    m_directories.append(dir);
+}
+
+void GnuMakeParser::removeDirectory(const QString &dir)
+{
+    m_directories.removeAll(dir);
+}
+
+void GnuMakeParser::taskAdded(const ProjectExplorer::TaskWindow::Task &task)
+{
+    ProjectExplorer::TaskWindow::Task editable(task);
+    QString filePath(QDir::cleanPath(task.file.trimmed()));
+
+    if (!filePath.isEmpty() && !QDir::isAbsolutePath(filePath)) {
+        QList<QFileInfo> possibleFiles;
+        foreach (const QString &dir, m_directories) {
+            QFileInfo candidate(dir + QLatin1Char('/') + filePath);
+            if (candidate.exists()
+                && !possibleFiles.contains(candidate)) {
+                possibleFiles << candidate;
+            }
+        }
+        if (possibleFiles.size() == 1)
+            editable.file = possibleFiles.first().filePath();
+        // Let the Makestep apply additional heuristics (based on
+        // files in ther project) if we can not uniquely
+        // identify the file!
+    }
+
+    IOutputParser::taskAdded(editable);
+}