/**************************************************************************
**
** This file is part of Qt Creator
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** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
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**
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** 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.
**
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#include "gccparser.h"
#include "projectexplorerconstants.h"
#include "taskwindow.h"

using namespace ProjectExplorer;

namespace {
    // opt. drive letter + filename: (2 brackets)
    const char * const FILE_PATTERN("^(([a-zA-Z]:)?[^:]*):");
    // line no. or elf segment + offset: (1 bracket)
    const char * const POSITION_PATTERN("(\\d+|\\(\\.[a-zA-Z0-9]*.0x[a-fA-F0-9]+\\)):");
}

GccParser::GccParser()
{
    m_regExp.setPattern(QString::fromLatin1(FILE_PATTERN) + QLatin1String("(\\d+):(\\d+:)?\\s(#?(warning|error):?\\s)(.+)$"));
    m_regExp.setMinimal(true);

    m_regExpIncluded.setPattern("^.*from\\s([^:]+):(\\d+)(,|:)$");
    m_regExpIncluded.setMinimal(true);

    m_regExpLinker.setPattern(QString::fromLatin1(FILE_PATTERN) + '(' + QLatin1String(POSITION_PATTERN) + ")?\\s(.+)$");
    m_regExpLinker.setMinimal(true);

    // m_regExpGccNames.setPattern("^([a-z0-9]+-[a-z0-9]+-[a-z0-9]+-)(gcc|g\\+\\+)(-[0-9\\.]+)?:");
    m_regExpGccNames.setPattern("^(gcc|g\\+\\+):\\s");
    m_regExpGccNames.setMinimal(true);
}

void GccParser::stdError(const QString &line)
{
    QString lne = line.trimmed();
    if (lne.startsWith(QLatin1String("collect2:")) ||
        lne.startsWith(QLatin1String("ERROR:")) ||
        lne == QLatin1String("* cpp failed")) {
        emit addTask(TaskWindow::Task(TaskWindow::Error,
                                      lne /* description */,
                                      QString() /* filename */,
                                      -1 /* linenumber */,
                                      Constants::TASK_CATEGORY_COMPILE));
        return;
    } else if (m_regExpGccNames.indexIn(lne) > -1) {
        emit addTask(TaskWindow::Task(TaskWindow::Error,
                                      lne.mid(m_regExpGccNames.matchedLength()), /* description */
                                      QString(), /* filename */
                                      -1, /* line */
                                      Constants::TASK_CATEGORY_COMPILE));
        return;
    } else if (m_regExp.indexIn(lne) > -1) {
        QString filename = m_regExp.cap(1);
        int lineno = m_regExp.cap(3).toInt();
        TaskWindow::Task task(TaskWindow::Unknown,
                              m_regExp.cap(7) /* description */,
                              filename, lineno,
                              Constants::TASK_CATEGORY_COMPILE);
        if (m_regExp.cap(6) == QLatin1String("warning"))
            task.type = TaskWindow::Warning;
        else if (m_regExp.cap(6) == QLatin1String("error") ||
                 task.description.startsWith(QLatin1String("undefined reference to")))
            task.type = TaskWindow::Error;

        // Prepend "#warning" or "#error" if that triggered the match on (warning|error)
        // We want those to show how the warning was triggered
        if (m_regExp.cap(5).startsWith(QChar('#')))
            task.description = m_regExp.cap(5) + task.description;

        emit addTask(task);
        return;
    } else if (m_regExpLinker.indexIn(lne) > -1) {
        bool ok;
        int lineno = m_regExpLinker.cap(4).toInt(&ok);
        if (!ok)
            lineno = -1;
        QString description = m_regExpLinker.cap(5);
        TaskWindow::Task task(TaskWindow::Error,
                              description,
                              m_regExpLinker.cap(1) /* filename */,
                              lineno,
                              Constants::TASK_CATEGORY_COMPILE);
        if (description.startsWith(QLatin1String("In function `")))
            task.type = TaskWindow::Unknown;

        emit addTask(task);
        return;
    } else if (m_regExpIncluded.indexIn(lne) > -1) {
        emit addTask(TaskWindow::Task(TaskWindow::Unknown,
                                      lne /* description */,
                                      m_regExpIncluded.cap(1) /* filename */,
                                      m_regExpIncluded.cap(2).toInt() /* linenumber */,
                                      Constants::TASK_CATEGORY_COMPILE));
        return;
    }
    IOutputParser::stdError(line);
}

// Unit tests:

#ifdef WITH_TESTS
#   include <QTest>

#   include "projectexplorer.h"
#   include "metatypedeclarations.h"
#   include "outputparser_test.h"

void ProjectExplorerPlugin::testGccOutputParsers_data()
{
    QTest::addColumn<QString>("input");
    QTest::addColumn<OutputParserTester::Channel>("inputChannel");
    QTest::addColumn<QString>("childStdOutLines");
    QTest::addColumn<QString>("childStdErrLines");
    QTest::addColumn<QList<ProjectExplorer::TaskWindow::Task> >("tasks");
    QTest::addColumn<QString>("outputLines");


    QTest::newRow("pass-through stdout")
            << QString::fromLatin1("Sometext") << OutputParserTester::STDOUT
            << QString::fromLatin1("Sometext") << QString()
            << QList<ProjectExplorer::TaskWindow::Task>()
            << QString();
    QTest::newRow("pass-through stderr")
            << QString::fromLatin1("Sometext") << OutputParserTester::STDERR
            << QString() << QString::fromLatin1("Sometext")
            << QList<ProjectExplorer::TaskWindow::Task>()
            << QString();

    QTest::newRow("GCCE error")
            << QString::fromLatin1("/temp/test/untitled8/main.cpp: In function `int main(int, char**)':\n"
                                   "/temp/test/untitled8/main.cpp:9: error: `sfasdf' undeclared (first use this function)\n"
                                   "/temp/test/untitled8/main.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>()
                << TaskWindow::Task(TaskWindow::Unknown,
                                    QLatin1String("In function `int main(int, char**)':"),
                                    QLatin1String("/temp/test/untitled8/main.cpp"), -1,
                                    Constants::TASK_CATEGORY_COMPILE)
                << TaskWindow::Task(TaskWindow::Error,
                                    QLatin1String("`sfasdf' undeclared (first use this function)"),
                                    QLatin1String("/temp/test/untitled8/main.cpp"), 9,
                                    Constants::TASK_CATEGORY_COMPILE)
                << TaskWindow::Task(TaskWindow::Error,
                                    QLatin1String("(Each undeclared identifier is reported only once for each function it appears in.)"),
                                    QLatin1String("/temp/test/untitled8/main.cpp"), 9,
                                    Constants::TASK_CATEGORY_COMPILE)
                )
            << QString();
    QTest::newRow("GCCE warning")
            << QString::fromLatin1("/src/corelib/global/qglobal.h:1635: warning: inline function `QDebug qDebug()' used but never defined")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>()
                << TaskWindow::Task(TaskWindow::Warning,
                                    QLatin1String("inline function `QDebug qDebug()' used but never defined"),
                                    QLatin1String("/src/corelib/global/qglobal.h"), 1635,
                                    Constants::TASK_CATEGORY_COMPILE))
            << QString();
    QTest::newRow("warning")
            << QString::fromLatin1("main.cpp:7:2: warning: Some warning")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>() << TaskWindow::Task(TaskWindow::Warning,
                                                              QLatin1String("Some warning"),
                                                              QLatin1String("main.cpp"), 7,
                                                              Constants::TASK_CATEGORY_COMPILE))
            << QString();
    QTest::newRow("GCCE #error")
            << QString::fromLatin1("C:\\temp\\test\\untitled8\\main.cpp:7: #error Symbian error")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>() << TaskWindow::Task(TaskWindow::Error,
                                                              QLatin1String("#error Symbian error"),
                                                              QLatin1String("C:\\temp\\test\\untitled8\\main.cpp"), 7,
                                                              Constants::TASK_CATEGORY_COMPILE))
            << QString();
    // Symbian reports #warning(s) twice (using different syntax).
    QTest::newRow("GCCE #warning1")
            << QString::fromLatin1("C:\\temp\\test\\untitled8\\main.cpp:8: warning: #warning Symbian warning")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>() << TaskWindow::Task(TaskWindow::Warning,
                                                              QLatin1String("#warning Symbian warning"),
                                                              QLatin1String("C:\\temp\\test\\untitled8\\main.cpp"), 8,
                                                              Constants::TASK_CATEGORY_COMPILE))
            << QString();
    QTest::newRow("GCCE #warning2")
            << QString::fromLatin1("/temp/test/untitled8/main.cpp:8:2: warning: #warning Symbian warning")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>() << TaskWindow::Task(TaskWindow::Warning,
                                                              QLatin1String("#warning Symbian warning"),
                                                              QLatin1String("/temp/test/untitled8/main.cpp"), 8,
                                                              Constants::TASK_CATEGORY_COMPILE))
            << QString();
    QTest::newRow("Undefined reference (debug)")
            << QString::fromLatin1("main.o: In function `main':\n"
                                   "C:\\temp\\test\\untitled8/main.cpp:8: undefined reference to `MainWindow::doSomething()'\n"
                                   "collect2: ld returned 1 exit status")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>()
                << TaskWindow::Task(TaskWindow::Unknown,
                                    QLatin1String("In function `main':"),
                                    QLatin1String("main.o"), -1,
                                    Constants::TASK_CATEGORY_COMPILE)
                << TaskWindow::Task(TaskWindow::Error,
                                    QLatin1String("undefined reference to `MainWindow::doSomething()'"),
                                    QLatin1String("C:\\temp\\test\\untitled8/main.cpp"), 8,
                                    Constants::TASK_CATEGORY_COMPILE)
                << TaskWindow::Task(TaskWindow::Error,
                                    QLatin1String("collect2: ld returned 1 exit status"),
                                    QString(), -1,
                                    Constants::TASK_CATEGORY_COMPILE)
                )
            << QString();
    QTest::newRow("Undefined reference (release)")
            << QString::fromLatin1("main.o: In function `main':\n"
                                   "C:\\temp\\test\\untitled8/main.cpp:(.text+0x40): undefined reference to `MainWindow::doSomething()'\n"
                                   "collect2: ld returned 1 exit status")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>()
                << TaskWindow::Task(TaskWindow::Unknown,
                                    QLatin1String("In function `main':"),
                                    QLatin1String("main.o"), -1,
                                    Constants::TASK_CATEGORY_COMPILE)
                << TaskWindow::Task(TaskWindow::Error,
                                    QLatin1String("undefined reference to `MainWindow::doSomething()'"),
                                    QLatin1String("C:\\temp\\test\\untitled8/main.cpp"), -1,
                                    Constants::TASK_CATEGORY_COMPILE)
                << TaskWindow::Task(TaskWindow::Error,
                                    QLatin1String("collect2: ld returned 1 exit status"),
                                    QString(), -1,
                                    Constants::TASK_CATEGORY_COMPILE)
                )
            << QString();
    QTest::newRow("linker: dll format not recognized")
            << QString::fromLatin1("c:\\Qt\\4.6\\lib/QtGuid4.dll: file not recognized: File format not recognized")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>()
                << TaskWindow::Task(TaskWindow::Error,
                                    QLatin1String("file not recognized: File format not recognized"),
                                    QLatin1String("c:\\Qt\\4.6\\lib/QtGuid4.dll"), -1,
                                    Constants::TASK_CATEGORY_COMPILE))
            << QString();
    QTest::newRow("Invalid rpath")
            << QString::fromLatin1("g++: /usr/local/lib: No such file or directory")
            << OutputParserTester::STDERR
            << QString() << QString()
            << (QList<ProjectExplorer::TaskWindow::Task>()
                << TaskWindow::Task(TaskWindow::Error,
                                    QLatin1String("/usr/local/lib: No such file or directory"),
                                    QString(), -1,
                                    Constants::TASK_CATEGORY_COMPILE))
            << QString();

}

void ProjectExplorerPlugin::testGccOutputParsers()
{
    OutputParserTester testbench;
    testbench.appendOutputParser(new GccParser);
    QFETCH(QString, input);
    QFETCH(OutputParserTester::Channel, inputChannel);
    QFETCH(QList<TaskWindow::Task>, tasks);
    QFETCH(QString, childStdOutLines);
    QFETCH(QString, childStdErrLines);
    QFETCH(QString, outputLines);

    testbench.testParsing(input, inputChannel,
                          tasks, childStdOutLines, childStdErrLines,
                          outputLines);
}
#endif