diff options
Diffstat (limited to 'sources/shiboken2/ApiExtractor/fileout.cpp')
| -rw-r--r-- | sources/shiboken2/ApiExtractor/fileout.cpp | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/sources/shiboken2/ApiExtractor/fileout.cpp b/sources/shiboken2/ApiExtractor/fileout.cpp new file mode 100644 index 000000000..c97347fe1 --- /dev/null +++ b/sources/shiboken2/ApiExtractor/fileout.cpp @@ -0,0 +1,231 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "fileout.h" +#include "reporthandler.h" + +#include <QtCore/QTextCodec> +#include <QtCore/QFileInfo> +#include <QtCore/QDir> + +#include <cstdio> + +bool FileOut::dummy = false; +bool FileOut::diff = false; + +#ifdef Q_OS_LINUX +const char* colorDelete = "\033[31m"; +const char* colorAdd = "\033[32m"; +const char* colorInfo = "\033[36m"; +const char* colorReset = "\033[0m"; +#else +const char* colorDelete = ""; +const char* colorAdd = ""; +const char* colorInfo = ""; +const char* colorReset = ""; +#endif + +FileOut::FileOut(QString n): + name(n), + stream(&tmp), + isDone(false) +{} + +static int* lcsLength(QList<QByteArray> a, QList<QByteArray> b) +{ + const int height = a.size() + 1; + const int width = b.size() + 1; + + int *res = new int[width * height]; + + for (int row = 0; row < height; row++) + res[width * row] = 0; + + for (int col = 0; col < width; col++) + res[col] = 0; + + for (int row = 1; row < height; row++) { + for (int col = 1; col < width; col++) { + if (a[row-1] == b[col-1]) + res[width * row + col] = res[width * (row-1) + col-1] + 1; + else + res[width * row + col] = qMax(res[width * row + col-1], + res[width * (row-1) + col]); + } + } + return res; +} + +enum Type { + Add, + Delete, + Unchanged +}; + +struct Unit +{ + Unit(Type type, int pos) : + type(type), + start(pos), + end(pos) {} + + Type type; + int start; + int end; + + void print(QList<QByteArray> a, QList<QByteArray> b) + { + if (type == Unchanged) { + if ((end - start) > 9) { + for (int i = start; i <= start + 2; i++) + std::printf(" %s\n", a[i].data()); + std::printf("%s=\n= %d more lines\n=%s\n", colorInfo, end - start - 6, colorReset); + for (int i = end - 2; i <= end; i++) + std::printf(" %s\n", a[i].data()); + } else { + for (int i = start; i <= end; i++) + std::printf(" %s\n", a[i].data()); + } + } else if (type == Add) { + std::printf("%s", colorAdd); + for (int i = start; i <= end; i++) + std::printf("+ %s\n", b[i].data()); + std::printf("%s", colorReset); + } else if (type == Delete) { + std::printf("%s", colorDelete); + for (int i = start; i <= end; i++) + std::printf("- %s\n", a[i].data()); + std::printf("%s", colorReset); + } + } +}; + +static QList<Unit*> *unitAppend(QList<Unit*> *res, Type type, int pos) +{ + if (!res) { + res = new QList<Unit*>; + res->append(new Unit(type, pos)); + return res; + } + + Unit *last = res->last(); + if (last->type == type) + last->end = pos; + else + res->append(new Unit(type, pos)); + + return res; +} + +static QList<Unit*> *diffHelper(int *lcs, QList<QByteArray> a, QList<QByteArray> b, int row, int col) +{ + if (row > 0 && col > 0 && (a[row-1] == b[col-1])) { + return unitAppend(diffHelper(lcs, a, b, row - 1, col - 1), Unchanged, row - 1); + } else { + int width = b.size() + 1; + if ((col > 0) + && (row == 0 || lcs[width * row + col-1] >= lcs[width *(row-1) + col])) { + return unitAppend(diffHelper(lcs, a, b, row, col - 1), Add, col - 1); + } else if ((row > 0) + && (col == 0 || lcs[width * row + col-1] < lcs[width *(row-1) + col])) { + return unitAppend(diffHelper(lcs, a, b, row - 1, col), Delete, row - 1); + } + } + delete lcs; + return 0; +} + +static void diff(QList<QByteArray> a, QList<QByteArray> b) +{ + QList<Unit*> *res = diffHelper(lcsLength(a, b), a, b, a.size(), b.size()); + for (int i = 0; i < res->size(); i++) { + Unit *unit = res->at(i); + unit->print(a, b); + delete(unit); + } + delete(res); +} + + +FileOut::State FileOut::done() +{ + Q_ASSERT(!isDone); + if (name.isEmpty()) + return Failure; + + isDone = true; + bool fileEqual = false; + QFile fileRead(name); + QFileInfo info(fileRead); + stream.flush(); + QByteArray original; + if (info.exists() && (diff || (info.size() == tmp.size()))) { + if (!fileRead.open(QIODevice::ReadOnly)) { + qCWarning(lcShiboken).noquote().nospace() + << QStringLiteral("failed to open file '%1' for reading") + .arg(QDir::toNativeSeparators(fileRead.fileName())); + return Failure; + } + + original = fileRead.readAll(); + fileRead.close(); + fileEqual = (original == tmp); + } + + if (fileEqual) + return Unchanged; + + if (!FileOut::dummy) { + QDir dir(info.absolutePath()); + if (!dir.mkpath(dir.absolutePath())) { + qCWarning(lcShiboken).noquote().nospace() + << QStringLiteral("unable to create directory '%1'") + .arg(QDir::toNativeSeparators(dir.absolutePath())); + return Failure; + } + + QFile fileWrite(name); + if (!fileWrite.open(QIODevice::WriteOnly)) { + qCWarning(lcShiboken).noquote().nospace() + << QStringLiteral("failed to open file '%1' for writing") + .arg(QDir::toNativeSeparators(fileWrite.fileName())); + return Failure; + } + QTextCodec *codec = QTextCodec::codecForName("UTF-8"); + stream.setCodec(codec); + stream.setDevice(&fileWrite); + stream << tmp; + } + if (diff) { + std::printf("%sFile: %s%s\n", colorInfo, qPrintable(name), colorReset); + ::diff(original.split('\n'), tmp.split('\n')); + std::printf("\n"); + } + + return Success; +} |