init

.gitignore

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+# C++ objects and libs
+*.slo
+*.lo
+*.o
+*.a
+*.la
+*.lai
+*.so
+*.dll
+*.dylib
+
+# Qt-es
+object_script.*.Release
+object_script.*.Debug
+*_plugin_import.cpp
+/.qmake.cache
+/.qmake.stash
+*.pro.user
+*.pro.user.*
+*.qbs.user
+*.qbs.user.*
+*.moc
+moc_*.cpp
+moc_*.h
+qrc_*.cpp
+ui_*.h
+*.qmlc
+*.jsc
+Makefile*
+*build-*
+
+# Qt unit tests
+target_wrapper.*
+
+# QtCreator
+*.autosave
+
+# QtCreator Qml
+*.qmlproject.user
+*.qmlproject.user.*
+
+# QtCreator CMake
+CMakeLists.txt.user*
+
+bom-fixer.pro.user

AUTHORS

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+Denis Medved <[email protected]>

README.md

@@ -0,0 +1,8 @@
+BOM Fixer
+=======
+This program drops BOM header from all files
+
+Build:
+
+$ qmake
+$ make

about.ui

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+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>About</class>
+ <widget class="QWidget" name="About">
+  <property name="enabled">
+   <bool>true</bool>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>388</width>
+    <height>158</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <widget class="QLabel" name="license">
+       <property name="text">
+        <string>License: &lt;a href=&quot;https://www.gnu.org/licenses/gpl-3.0.txt&quot;&gt;GPLv3 or later&lt;/a&gt; </string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLabel" name="contact">
+       <property name="text">
+        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Contact: Denis Medved &amp;lt;&lt;a href=&quot;mailto:[email protected]&quot;&gt;&lt;span style=&quot; text-decoration: underline; color:#2980b9;&quot;&gt;[email protected]&lt;/span&gt;&lt;/a&gt;&amp;gt; &lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       </property>
+       <property name="textFormat">
+        <enum>Qt::RichText</enum>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLabel" name="source">
+       <property name="text">
+        <string>Source: &lt;a href=&quot;https://github.com/DenisMedved/bom-fixer&quot;&gt;https://github.com/DenisMedved/bom-fixer&lt;/a&gt;</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="close">
+       <property name="text">
+        <string>Close</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>close</sender>
+   <signal>clicked()</signal>
+   <receiver>About</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>84</x>
+     <y>92</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>84</x>
+     <y>57</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

bom-fixer.pro

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+
+QT       += core gui widgets
+
+TARGET = bom-fixer
+TEMPLATE = app
+
+SOURCES += \
+        main.cpp \
+        mainwindow.cpp \
+    bomfilesystemmodel.cpp
+
+HEADERS += \
+        mainwindow.h \
+    bomfilesystemmodel.h
+
+FORMS += \
+        mainwindow.ui \
+    about.ui
+
+DISTFILES += \
+    LICENSE \
+    README.md \
+    AUTHORS
+
+CONFIG += static

bomfilesystemmodel.cpp

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+#include "bomfilesystemmodel.h"
+#include <iostream>
+
+BOMFileSystemModel::BOMFileSystemModel(QObject *parent/* = Q_NULLPTR */) :
+    QFileSystemModel(parent)
+{
+
+}
+
+bool BOMFileSystemModel::hasBOM(QFileInfo& fileInfo) const
+{
+    QFile file(fileInfo.filePath());
+
+    if (!file.open(QIODevice::ReadOnly)) {
+        return false;
+    }
+
+    QByteArray head = file.read(3);
+
+    if (head.length() < 3) {
+        return false;
+    }
+
+    return head.at(0) == '\xEF'
+            && head.at(1) == '\xBB'
+            && head.at(2) == '\xBF';
+}
+
+void BOMFileSystemModel::fixBOM(QString path) const
+{
+    QFile file(path);
+    if (!file.open(QIODevice::ReadWrite))
+        return ;
+
+    QByteArray content = file.readAll();
+    content.remove(0,3); //drop 3 bytes from the begin
+    file.resize(0);
+    file.write(content);
+    file.close();
+}
+
+void BOMFileSystemModel::slotFixBOM()
+{
+    QSet<QString>::iterator it = m_bomPaths.begin();
+    while (it != m_bomPaths.end()) {
+        fixBOM(*it);
+        ++it;
+    }
+
+    populateDirectory(rootDirectory());
+
+    emit fixed();
+}
+
+void BOMFileSystemModel::populateDirectory(const QDir& dir)
+{
+    setRootPath(dir.path());
+
+    m_bomPaths.clear();
+    QDirIterator it(rootDirectory(), QDirIterator::Subdirectories);
+    while (it.hasNext()) {
+        it.next();
+        QFileInfo info = it.fileInfo();
+
+        if (!info.path().contains("/.") //ignore hidden dirs and subdirs
+                && info.fileName().at(0) != '.' //ignore hidden files
+                && info.isFile()
+                && !m_bomPaths.contains(info.filePath()) //check if already handled
+                && hasBOM(info))
+
+            m_bomPaths.insert(info.filePath());
+    }
+
+    emit dataChanged(QModelIndex(), QModelIndex());
+}
+
+QVariant BOMFileSystemModel::data(const QModelIndex &index, int role /*= Qt::DisplayRole*/) const
+{
+    if (role == Qt::TextColorRole){
+        if (m_bomPaths.contains(filePath(index)))
+            return QColor(Qt::red);
+    }
+
+    return QFileSystemModel::data(index, role);
+}

bomfilesystemmodel.h

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+#ifndef BOMFILESYSTEMMODEL_H
+#define BOMFILESYSTEMMODEL_H
+
+#include <memory>
+#include <QFileSystemModel>
+#include <QDir>
+#include <QVariant>
+#include <QModelIndex>
+#include <QSet>
+
+class BOMFileSystemModel : public QFileSystemModel
+{
+    Q_OBJECT
+
+private:
+    bool hasBOM(QFileInfo& fileInfo) const;
+    void fixBOM(QString path) const;
+    QSet<QString> m_bomPaths;
+
+public:
+    explicit BOMFileSystemModel(QObject *parent = 0);
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+    void populateDirectory(const QDir& dir);
+
+public slots:
+    void slotFixBOM();
+signals:
+    void fixed();
+};
+
+#endif // BOMFILESYSTEMMODEL_H

main.cpp

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+#include "mainwindow.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+
+    return a.exec();
+}

mainwindow.cpp

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+
+#include <QFileDialog>
+#include <QMessageBox>
+
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include "ui_about.h"
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    m_pUi(std::make_shared<Ui::MainWindow>()),
+    m_pFsModel(std::make_shared<BOMFileSystemModel>()),
+    m_pUiAbout(std::make_shared<Ui::About>())
+{
+    m_pUi->setupUi(this);
+    m_pUiAbout->setupUi(&m_about);
+    m_about.hide();
+    m_pUi->files->setModel(m_pFsModel.get());
+
+    connect(m_pUi->chooseDir, SIGNAL(clicked()),
+            this, SLOT(slotChooseDir())
+            );
+    connect(m_pUi->fix, SIGNAL(clicked()),
+            m_pFsModel.get(), SLOT(slotFixBOM())
+            );
+    connect(m_pFsModel.get(), SIGNAL(fixed()),
+            this, SLOT(slotFixed())
+            );
+    connect(m_pUi->about, SIGNAL(clicked()),
+            this, SLOT(slotAbout())
+            );
+}
+
+void MainWindow::slotFixed()
+{
+    QMessageBox msgBox;
+    msgBox.setText("BOM has been fixed.");
+    msgBox.exec();
+
+    m_pUi->fix->setEnabled(false);
+}
+
+void MainWindow::slotChooseDir()
+{
+    QString path = QFileDialog::getExistingDirectory(this, "Choose Directory");
+    m_pDir = std::make_shared<QDir>(QDir(path));
+    m_pFsModel->populateDirectory(QDir(path));
+    m_pUi->files->setRootIndex(m_pFsModel->index(path));
+    m_pUi->files->setColumnWidth(0, 300);
+    m_pUi->fix->setEnabled(true);
+}
+
+void MainWindow::slotAbout()
+{
+    m_about.show();
+}

mainwindow.h

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+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <memory>
+#include <QDir>
+#include <QMainWindow>
+
+#include "bomfilesystemmodel.h"
+
+namespace Ui {
+class MainWindow;
+class About;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+private:
+    std::shared_ptr<QDir> m_pDir;
+    std::shared_ptr<BOMFileSystemModel> m_pFsModel;
+    std::shared_ptr<Ui::MainWindow> m_pUi;
+    std::shared_ptr<Ui::About> m_pUiAbout;
+    QWidget m_about;
+
+public:
+    explicit MainWindow(QWidget *parent = 0);
+
+public slots:
+    void slotChooseDir();
+    void slotFixed();
+    void slotAbout();
+};
+
+#endif // MAINWINDOW_H