Add Beast fork from JUCE commit 265fb0e8ebc26e1469d6edcc68d2ca9acefeb508

modules/beast_core/logging/beast_FileLogger.cpp

@@ -0,0 +1,129 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of Beast: https://github.com/vinniefalco/Beast
+    Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
+
+    Portions of this file are from JUCE.
+    Copyright (c) 2013 - Raw Material Software Ltd.
+    Please visit http://www.juce.com
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+FileLogger::FileLogger (const File& file,
+                        const String& welcomeMessage,
+                        const int64 maxInitialFileSizeBytes)
+    : logFile (file)
+{
+    if (maxInitialFileSizeBytes >= 0)
+        trimFileSize (maxInitialFileSizeBytes);
+
+    if (! file.exists())
+        file.create();  // (to create the parent directories)
+
+    String welcome;
+    welcome << newLine
+            << "**********************************************************" << newLine
+            << welcomeMessage << newLine
+            << "Log started: " << Time::getCurrentTime().toString (true, true) << newLine;
+
+    FileLogger::logMessage (welcome);
+}
+
+FileLogger::~FileLogger() {}
+
+//==============================================================================
+void FileLogger::logMessage (const String& message)
+{
+    const ScopedLock sl (logLock);
+    DBG (message);
+    FileOutputStream out (logFile, 256);
+    out << message << newLine;
+}
+
+void FileLogger::trimFileSize (int64 maxFileSizeBytes) const
+{
+    if (maxFileSizeBytes <= 0)
+    {
+        logFile.deleteFile();
+    }
+    else
+    {
+        const int64 fileSize = logFile.getSize();
+
+        if (fileSize > maxFileSizeBytes)
+        {
+            TemporaryFile tempFile (logFile);
+
+            {
+                FileOutputStream out (tempFile.getFile());
+                FileInputStream in (logFile);
+
+                if (! (out.openedOk() && in.openedOk()))
+                    return;
+
+                in.setPosition (fileSize - maxFileSizeBytes);
+
+                for (;;)
+                {
+                    const char c = in.readByte();
+                    if (c == 0)
+                        return;
+
+                    if (c == '\n' || c == '\r')
+                    {
+                        out << c;
+                        break;
+                    }
+                }
+
+                out.writeFromInputStream (in, -1);
+            }
+
+            tempFile.overwriteTargetFileWithTemporary();
+        }
+    }
+}
+
+//==============================================================================
+File FileLogger::getSystemLogFileFolder()
+{
+   #if BEAST_MAC
+    return File ("~/Library/Logs");
+   #else
+    return File::getSpecialLocation (File::userApplicationDataDirectory);
+   #endif
+}
+
+FileLogger* FileLogger::createDefaultAppLogger (const String& logFileSubDirectoryName,
+                                                const String& logFileName,
+                                                const String& welcomeMessage,
+                                                const int64 maxInitialFileSizeBytes)
+{
+    return new FileLogger (getSystemLogFileFolder().getChildFile (logFileSubDirectoryName)
+                                                   .getChildFile (logFileName),
+                           welcomeMessage, maxInitialFileSizeBytes);
+}
+
+FileLogger* FileLogger::createDateStampedLogger (const String& logFileSubDirectoryName,
+                                                 const String& logFileNameRoot,
+                                                 const String& logFileNameSuffix,
+                                                 const String& welcomeMessage)
+{
+    return new FileLogger (getSystemLogFileFolder().getChildFile (logFileSubDirectoryName)
+                                                   .getChildFile (logFileNameRoot + Time::getCurrentTime().formatted ("%Y-%m-%d_%H-%M-%S"))
+                                                   .withFileExtension (logFileNameSuffix)
+                                                   .getNonexistentSibling(),
+                           welcomeMessage, 0);
+}