Add clang-format file

Also run it across the whole tree to get everything using the One True Style.
We don't yet run this in an automated fashion as it's a little slow, but
there is a snippet to do so in makeall.sh.

Applications/FileManager/DirectoryView.h

@@ -1,10 +1,10 @@
 #pragma once
 
 #include <AK/Vector.h>
-#include <LibGUI/GTableView.h>
+#include <LibGUI/GDirectoryModel.h>
 #include <LibGUI/GItemView.h>
 #include <LibGUI/GStackWidget.h>
-#include <LibGUI/GDirectoryModel.h>
+#include <LibGUI/GTableView.h>
 #include <sys/stat.h>
 
 class DirectoryView final : public GStackWidget {
@@ -26,7 +26,12 @@ public:
     Function<void(String)> on_status_message;
     Function<void(int done, int total)> on_thumbnail_progress;
 
-    enum ViewMode { Invalid, List, Icon };
+    enum ViewMode
+    {
+        Invalid,
+        List,
+        Icon
+    };
     void set_view_mode(ViewMode);
     ViewMode view_mode() const { return m_view_mode; }
 
@@ -41,7 +46,7 @@ private:
     ViewMode m_view_mode { Invalid };
 
     Retained<GDirectoryModel> m_model;
-    int m_path_history_position{ 0 };
+    int m_path_history_position { 0 };
     Vector<String> m_path_history;
     void add_path_to_history(const String& path);
 

Applications/FontEditor/FontEditor.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include <LibGUI/GWidget.h>
 #include <AK/Function.h>
+#include <LibGUI/GWidget.h>
 
 class GlyphEditorWidget;
 class GlyphMapWidget;

Applications/FontEditor/GlyphEditorWidget.h

@@ -1,5 +1,5 @@
-#include <LibGUI/GFrame.h>
 #include <AK/Function.h>
+#include <LibGUI/GFrame.h>
 
 class GlyphEditorWidget final : public GFrame {
 public:

Applications/FontEditor/GlyphMapWidget.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include <LibGUI/GFrame.h>
 #include <AK/Function.h>
+#include <LibGUI/GFrame.h>
 
 class GlyphMapWidget final : public GFrame {
 public:

Applications/IRCClient/IRCAppWindow.h

@@ -1,9 +1,9 @@
 #pragma once
 
-#include <LibGUI/GWindow.h>
-#include <LibGUI/GWidget.h>
 #include "IRCClient.h"
 #include "IRCWindow.h"
+#include <LibGUI/GWidget.h>
+#include <LibGUI/GWindow.h>
 
 class GAction;
 class GStackWidget;

Applications/IRCClient/IRCChannel.h

@@ -1,11 +1,11 @@
 #pragma once
 
+#include "IRCLogBuffer.h"
 #include <AK/AKString.h>
 #include <AK/CircularQueue.h>
-#include <AK/Vector.h>
-#include <AK/Retainable.h>
 #include <AK/RetainPtr.h>
-#include "IRCLogBuffer.h"
+#include <AK/Retainable.h>
+#include <AK/Vector.h>
 
 class IRCClient;
 class IRCChannelMemberListModel;

Applications/IRCClient/IRCChannelMemberListModel.h

@@ -1,13 +1,16 @@
 #pragma once
 
-#include <LibGUI/GModel.h>
 #include <AK/Function.h>
+#include <LibGUI/GModel.h>
 
 class IRCChannel;
 
 class IRCChannelMemberListModel final : public GModel {
 public:
-    enum Column { Name };
+    enum Column
+    {
+        Name
+    };
     static Retained<IRCChannelMemberListModel> create(IRCChannel& channel) { return adopt(*new IRCChannelMemberListModel(channel)); }
     virtual ~IRCChannelMemberListModel() override;
 

Applications/IRCClient/IRCClient.h

@@ -1,13 +1,13 @@
 #pragma once
 
-#include <AK/AKString.h>
-#include <AK/HashMap.h>
-#include <AK/CircularQueue.h>
-#include <AK/Function.h>
-#include <LibCore/CTCPSocket.h>
-#include <LibCore/CConfigFile.h>
 #include "IRCLogBuffer.h"
 #include "IRCWindow.h"
+#include <AK/AKString.h>
+#include <AK/CircularQueue.h>
+#include <AK/Function.h>
+#include <AK/HashMap.h>
+#include <LibCore/CConfigFile.h>
+#include <LibCore/CTCPSocket.h>
 
 class IRCChannel;
 class IRCQuery;
@@ -17,6 +17,7 @@ class CNotifier;
 class IRCClient final : public CObject {
     friend class IRCChannel;
     friend class IRCQuery;
+
 public:
     IRCClient();
     virtual ~IRCClient() override;

Applications/IRCClient/IRCLogBuffer.h

@@ -2,8 +2,8 @@
 
 #include <AK/AKString.h>
 #include <AK/CircularQueue.h>
-#include <AK/Retainable.h>
 #include <AK/RetainPtr.h>
+#include <AK/Retainable.h>
 #include <SharedGraphics/Color.h>
 
 class IRCLogBufferModel;

Applications/IRCClient/IRCLogBufferModel.h

@@ -6,7 +6,8 @@ class IRCLogBuffer;
 
 class IRCLogBufferModel final : public GModel {
 public:
-    enum Column {
+    enum Column
+    {
         Timestamp = 0,
         Name,
         Text,

Applications/IRCClient/IRCQuery.h

@@ -1,11 +1,11 @@
 #pragma once
 
+#include "IRCLogBuffer.h"
 #include <AK/AKString.h>
 #include <AK/CircularQueue.h>
-#include <AK/Vector.h>
-#include <AK/Retainable.h>
 #include <AK/RetainPtr.h>
-#include "IRCLogBuffer.h"
+#include <AK/Retainable.h>
+#include <AK/Vector.h>
 
 class IRCClient;
 class IRCWindow;

Applications/IRCClient/IRCWindow.h

@@ -11,7 +11,8 @@ class GTextEditor;
 
 class IRCWindow : public GWidget {
 public:
-    enum Type {
+    enum Type
+    {
         Server,
         Channel,
         Query,

Applications/IRCClient/IRCWindowListModel.h

@@ -1,14 +1,15 @@
 #pragma once
 
-#include <LibGUI/GModel.h>
 #include <AK/Function.h>
+#include <LibGUI/GModel.h>
 
 class IRCClient;
 class IRCWindow;
 
 class IRCWindowListModel final : public GModel {
 public:
-    enum Column {
+    enum Column
+    {
         Name,
     };
 

Applications/ProcessManager/GraphWidget.h

@@ -1,5 +1,5 @@
-#include <LibGUI/GFrame.h>
 #include <AK/CircularQueue.h>
+#include <LibGUI/GFrame.h>
 
 class GraphWidget final : public GFrame {
 public:

Applications/ProcessManager/MemoryStatsWidget.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include <LibGUI/GWidget.h>
 #include <LibCore/CFile.h>
+#include <LibGUI/GWidget.h>
 
 class GLabel;
 class GraphWidget;

Applications/ProcessManager/ProcessModel.h

@@ -3,15 +3,16 @@
 #include <AK/AKString.h>
 #include <AK/HashMap.h>
 #include <AK/Vector.h>
-#include <LibGUI/GModel.h>
 #include <LibCore/CFile.h>
+#include <LibGUI/GModel.h>
 #include <unistd.h>
 
 class GraphWidget;
 
 class ProcessModel final : public GModel {
 public:
-    enum Column {
+    enum Column
+    {
         Icon = 0,
         Name,
         CPU,

Applications/ProcessManager/ProcessTableView.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include <LibGUI/GTableView.h>
 #include <AK/Function.h>
+#include <LibGUI/GTableView.h>
 #include <unistd.h>
 
 class GraphWidget;
@@ -19,4 +19,3 @@ public:
 private:
     virtual void model_notification(const GModelNotification&) override;
 };
-

Applications/Taskbar/TaskbarButton.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include <LibGUI/GButton.h>
 #include "WindowIdentifier.h"
+#include <LibGUI/GButton.h>
 
 class TaskbarButton final : public GButton {
 public:

Applications/Taskbar/TaskbarWindow.h

@@ -1,6 +1,6 @@
-#include <LibGUI/GWindow.h>
-#include <LibGUI/GWidget.h>
 #include "WindowList.h"
+#include <LibGUI/GWidget.h>
+#include <LibGUI/GWindow.h>
 
 class TaskbarWindow final : public GWindow {
 public:

Applications/Taskbar/WindowIdentifier.h

@@ -18,6 +18,7 @@ public:
     {
         return m_client_id == other.m_client_id && m_window_id == other.m_window_id;
     }
+
 private:
     int m_client_id { -1 };
     int m_window_id { -1 };

Applications/Taskbar/WindowList.h

@@ -1,10 +1,10 @@
 #pragma once
 
+#include "WindowIdentifier.h"
 #include <AK/AKString.h>
 #include <AK/HashMap.h>
-#include <SharedGraphics/Rect.h>
 #include <LibGUI/GButton.h>
-#include "WindowIdentifier.h"
+#include <SharedGraphics/Rect.h>
 
 class Window {
 public:
@@ -64,7 +64,8 @@ class WindowList {
 public:
     static WindowList& the();
 
-    template<typename Callback> void for_each_window(Callback callback)
+    template<typename Callback>
+    void for_each_window(Callback callback)
     {
         for (auto& it : m_windows)
             callback(*it.value);

Applications/Terminal/Terminal.h

@@ -3,12 +3,12 @@
 #include <AK/AKString.h>
 #include <AK/Types.h>
 #include <AK/Vector.h>
-#include <SharedGraphics/GraphicsBitmap.h>
-#include <SharedGraphics/Rect.h>
-#include <LibGUI/GFrame.h>
+#include <LibCore/CConfigFile.h>
 #include <LibCore/CNotifier.h>
 #include <LibCore/CTimer.h>
-#include <LibCore/CConfigFile.h>
+#include <LibGUI/GFrame.h>
+#include <SharedGraphics/GraphicsBitmap.h>
+#include <SharedGraphics/Rect.h>
 
 class Font;
 
@@ -45,7 +45,6 @@ private:
     void invalidate_cursor();
     void set_window_title(const String&);
 
-
     void inject_string(const String&);
     void unimplemented_escape();
     void unimplemented_xterm_escape();
@@ -107,7 +106,11 @@ private:
         bool dirty { false };
         word length { 0 };
     };
-    Line& line(size_t index) { ASSERT(index < m_rows); return *m_lines[index]; }
+    Line& line(size_t index)
+    {
+        ASSERT(index < m_rows);
+        return *m_lines[index];
+    }
 
     Line** m_lines { nullptr };
 
@@ -125,7 +128,8 @@ private:
     void execute_escape_sequence(byte final);
     void execute_xterm_command();
 
-    enum EscapeState {
+    enum EscapeState
+    {
         Normal,
         ExpectBracket,
         ExpectParameter,