Merge pull request xbmc#17697 from fuzzard/tvos_spdlogfix

[tvos] Runtime fixup after spdlog

xbmc/platform/darwin/tvos/PreflightHandler.mm

@@ -0,0 +1,184 @@
+/*
+ *      Copyright (C) 2016 Team MrMC
+ *      https://github.com/MrMC
+ *
+ *  This Program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This Program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with MrMC; see the file COPYING.  If not, see
+ *  <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#import "PreflightHandler.h"
+
+#include "URL.h"
+#include "filesystem/File.h"
+#include "utils/log.h"
+
+#import "platform/darwin/NSLogDebugHelpers.h"
+#import "platform/darwin/ios-common/DarwinNSUserDefaults.h"
+#import "platform/darwin/tvos/filesystem/TVOSFile.h"
+#import "platform/darwin/tvos/filesystem/TVOSFileUtils.h"
+#include "platform/posix/filesystem/PosixFile.h"
+
+#import <UIKit/UIKit.h>
+
+uint64_t CPreflightHandler::NSUserDefaultsSize()
+{
+  auto libraryDir =
+      NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES)[0];
+  auto filepath = [libraryDir
+      stringByAppendingPathComponent:[NSString
+                                         stringWithFormat:@"/Preferences/%@.plist",
+                                                          [NSBundle mainBundle].bundleIdentifier]];
+  auto fileSize =
+      [[[NSFileManager defaultManager] attributesOfItemAtPath:filepath error:nil][NSFileSize]
+          unsignedLongLongValue];
+
+  return fileSize;
+}
+
+void CPreflightHandler::NSUserDefaultsPurge(const char* prefix)
+{
+  auto defaults = [NSUserDefaults standardUserDefaults];
+  NSDictionary<NSString*, id>* dict = [defaults dictionaryRepresentation];
+  NSString* aKey;
+  for (aKey in dict.allKeys)
+  {
+    if ([aKey hasPrefix:@(prefix)])
+    {
+      [defaults removeObjectForKey:aKey];
+      LOG(@"nsuserdefaults: removing %@", aKey);
+    }
+  }
+}
+
+void CPreflightHandler::CheckForRemovedCacheFolder()
+{
+  // if already migrated, "UserdataMigrated" key will be in UserDefaults
+  // if user home directory does not exist, Apple deleted cache from under us.
+  // we will mark it for possible restore if the backup exist
+  auto defaults = [NSUserDefaults standardUserDefaults];
+  auto migration_key = @"UserdataMigrated";
+  if (![defaults objectForKey:migration_key])
+  {
+    // no existing data, no need to check any further.
+    return;
+  }
+
+  //!@todo: implement some sort of backup/restore if folder no longer exists?
+}
+
+void CPreflightHandler::MigrateUserdataXMLToNSUserDefaults()
+{
+  LOG(@"MigrateUserdataXMLToNSUserDefaults: NSUserDefaultsSize(%llu)", NSUserDefaultsSize());
+
+  auto defaults = [NSUserDefaults standardUserDefaults];
+
+  // if already migrated, we are done.
+  auto migration_key = @"UserdataMigrated";
+  if ([defaults objectForKey:migration_key])
+  {
+    // If we require forced update of data from cache check for migration_key value
+    return;
+  }
+
+  LOG(@"MigrateUserdataXMLToNSUserDefaults: migration starting");
+
+  NSUserDefaultsPurge("/userdata");
+  // now search for all xxx.xml files in the
+  // user home directory and copy them into NSUserDefaults
+  auto userHome = CTVOSFileUtils::GetUserHomeDirectory();
+  auto nsPath = @(userHome);
+
+  NSDirectoryEnumerator* enumerator = [[NSFileManager defaultManager] enumeratorAtPath:nsPath];
+  NSString* file;
+  while (file = [enumerator nextObject])
+  {
+    auto fullPath = [nsPath stringByAppendingPathComponent:file];
+
+    // skip the Thumbnails directory, there are no xml files present
+    // and it can be very large.
+    if ([fullPath containsString:@"Thumbnails"])
+      continue;
+
+    // check if it's a directory
+    BOOL isDirectory = NO;
+    [[NSFileManager defaultManager] fileExistsAtPath:fullPath isDirectory:&isDirectory];
+    if (isDirectory)
+      continue;
+    // check if the file extension is 'xml'
+    if ([file.pathExtension isEqualToString:@"xml"])
+    {
+      // log what we are doing
+      LOG(@"MigrateUserdataXMLToNSUserDefaults: Found -> %@", fullPath);
+
+      // we cannot use a Cfile for src, it will get mapped into a CTVOSFile
+      const CURL srcUrl(fullPath.UTF8String);
+      XFILE::CPosixFile srcfile;
+      if (!srcfile.Open(srcUrl))
+      {
+        LOG(@"MigrateUserdataXMLToNSUserDefaults: Failed opening file %s", srcUrl.Get().c_str());
+        continue;
+      }
+
+      const CURL dtsUrl(fullPath.UTF8String);
+      XFILE::CTVOSFile dstfile;
+      if (dstfile.OpenForWrite(dtsUrl, true))
+      {
+        auto iBufferSize = 128 * 1024;
+        XFILE::auto_buffer buffer(iBufferSize);
+
+        while (true)
+        {
+          // read data
+          auto iread = srcfile.Read(buffer.get(), iBufferSize);
+          if (iread == 0)
+            break;
+          else if (iread < 0)
+          {
+            LOG(@"MigrateUserdataXMLToNSUserDefaults: Failed read from file %s",
+                srcUrl.Get().c_str());
+            break;
+          }
+
+          // write data and make sure we write it all
+          auto iwrite = 0;
+          while (iwrite < iread)
+          {
+            auto iwrite2 = dstfile.Write(buffer.get() + iwrite, iread - iwrite);
+            if (iwrite2 <= 0)
+              break;
+            iwrite += iwrite2;
+          }
+
+          if (iwrite != iread)
+          {
+            LOG(@"MigrateUserdataXMLToNSUserDefaults: Failed write to file %s",
+                dtsUrl.Get().c_str());
+            break;
+          }
+        }
+        dstfile.Close();
+        srcfile.Close();
+        srcfile.Delete(srcUrl);
+      }
+    }
+  }
+
+  // set the migration_key to a known value and write it.
+  [defaults setObject:@"1" forKey:migration_key];
+  [defaults synchronize];
+
+  LOG(@"MigrateUserdataXMLToNSUserDefaults: migration finished");
+  LOG(@"MigrateUserdataXMLToNSUserDefaults: NSUserDefaultsSize(%llu)", NSUserDefaultsSize());
+}