Tooling: Send app device logs to Testfairy properly

React Native uses 'asl' to do logging, not NSLog, so we have to hook into that
to get logs sent to Testfairy. This means we get all the app device logs you
normally get in development, not just whatever happens in JS land.

- Modified default logging function when flag is set
- Delete Prefix header file and NSLog Macro

ios/Status-Prefix.pch

@@ -1,13 +0,0 @@
-//  PrefixHeader.pch
-
-#ifndef PrefixHeader_pch
-#define PrefixHeader_pch
-
-// Include any system framework and library headers here that should be included in all compilation units.
-// You will also need to set the Prefix Header build setting of one or more of your targets to reference this file.
-
-#endif /* PrefixHeader_pch */
-
-#import "TestFairy.h"
-
-#define NSLog(s, ...) do { NSLog(s, ##__VA_ARGS__); TFLog(s, ##__VA_ARGS__); } while (0)

ios/StatusIm.xcodeproj/project.pbxproj

@@ -1987,8 +1987,8 @@
 					"$(PROJECT_DIR)/Pods/**",
 					"$(PROJECT_DIR)",
 				);
-				GCC_PRECOMPILE_PREFIX_HEADER = YES;
-				GCC_PREFIX_HEADER = "Status-Prefix.pch";
+				GCC_PRECOMPILE_PREFIX_HEADER = NO;
+				GCC_PREFIX_HEADER = "";
 				HEADER_SEARCH_PATHS = (
 					"$(inherited)",
 					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
@@ -2046,8 +2046,8 @@
 					"$(PROJECT_DIR)/Pods/**",
 					"$(PROJECT_DIR)",
 				);
-				GCC_PRECOMPILE_PREFIX_HEADER = YES;
-				GCC_PREFIX_HEADER = "Status-Prefix.pch";
+				GCC_PRECOMPILE_PREFIX_HEADER = NO;
+				GCC_PREFIX_HEADER = "";
 				HEADER_SEARCH_PATHS = (
 					"$(inherited)",
 					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,

ios/StatusIm/AppDelegate.m

@@ -9,6 +9,7 @@
 
 #import "AppDelegate.h"
 
+#import <asl.h>
 #import "ReactNativeConfig.h"
 #import "React/RCTLog.h"
 #import "RCTBundleURLProvider.h"
@@ -17,12 +18,48 @@
 #import "TestFairy.h"
 #import "RNFIRMessaging.h"
 
-/* Macro to send app logs to TestFairy, potential duplicate of prefix header */
-#define NSLog(s, ...) do { NSLog(s, ##__VA_ARGS__); TFLog(s, ##__VA_ARGS__); } while (0)
 @import Instabug;
 
 @implementation AppDelegate
 
+/* Modified version of RCTDefaultLogFunction that also directs all app logs to TestFairy. */
+RCTLogFunction RCTTestFairyLogFunction = ^(
+  RCTLogLevel level,
+  __unused RCTLogSource source,
+  NSString *fileName,
+  NSNumber *lineNumber,
+  NSString *message
+  )
+{
+  NSString *log = RCTFormatLog([NSDate date], level, fileName, lineNumber, message);
+  fprintf(stderr, "%s\n", log.UTF8String);
+  fflush(stderr);
+
+  /* Only custom part */
+  TFLog(log);
+
+  int aslLevel;
+  switch(level) {
+  case RCTLogLevelTrace:
+    aslLevel = ASL_LEVEL_DEBUG;
+    break;
+  case RCTLogLevelInfo:
+    aslLevel = ASL_LEVEL_NOTICE;
+    break;
+  case RCTLogLevelWarning:
+    aslLevel = ASL_LEVEL_WARNING;
+    break;
+  case RCTLogLevelError:
+    aslLevel = ASL_LEVEL_ERR;
+    break;
+  case RCTLogLevelFatal:
+    aslLevel = ASL_LEVEL_CRIT;
+    break;
+  }
+  asl_log(NULL, NULL, aslLevel, "%s", message.UTF8String);
+
+};
+
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 {
   signal(SIGPIPE, SIG_IGN);
@@ -32,6 +69,7 @@
   NSString *debugLogsEnabled = [ReactNativeConfig envFor:@"DEBUG_LOGS_ENABLED"];
   if([debugLogsEnabled isEqualToString:@"1"]){
     RCTSetLogThreshold(RCTLogLevelInfo - 1);
+    RCTSetLogFunction(RCTTestFairyLogFunction);
   }
 
   jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index.ios" fallbackResource:nil];