Echo shell commands while attempting to start Metro from Xcode

Summary: Changelog: [Internal]

Reviewed By: yungsters

Differential Revision: D32296662

fbshipit-source-id: 7780f287471325c8aec1793cf8f2089ca14b562f

packages/rn-tester/RNTesterPods.xcodeproj/project.pbxproj

@@ -594,7 +594,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "export RCT_METRO_PORT=\"${RCT_METRO_PORT:=8081}\"\necho \"export RCT_METRO_PORT=${RCT_METRO_PORT}\" > \"${SRCROOT}/../../scripts/.packager.env\"\nif [ -z \"${RCT_NO_LAUNCH_PACKAGER+xxx}\" ] ; then\n  if nc -w 5 -z localhost ${RCT_METRO_PORT} ; then\n    if ! curl -s \"http://localhost:${RCT_METRO_PORT}/status\" | grep -q \"packager-status:running\" ; then\n      echo \"Port ${RCT_METRO_PORT} already in use, packager is either not running or not running correctly\"\n      exit 2\n    fi\n  else\n    open \"$SRCROOT/../../scripts/launchPackager.command\" || echo \"Can't start packager automatically\"\n  fi\nfi\n";
+			shellScript = "set -x\n\nexport RCT_METRO_PORT=\"${RCT_METRO_PORT:=8081}\"\necho \"export RCT_METRO_PORT=${RCT_METRO_PORT}\" > \"${SRCROOT}/../../scripts/.packager.env\"\nif [ -z \"${RCT_NO_LAUNCH_PACKAGER+xxx}\" ] ; then\n  if nc -w 5 -z localhost ${RCT_METRO_PORT} ; then\n    if ! curl -s \"http://localhost:${RCT_METRO_PORT}/status\" | grep -q \"packager-status:running\" ; then\n      echo \"Port ${RCT_METRO_PORT} already in use, packager is either not running or not running correctly\"\n      exit 2\n    fi\n  else\n    open \"$SRCROOT/../../scripts/launchPackager.command\" || echo \"Can't start packager automatically\"\n  fi\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		68CD48B71D2BCB2C007E06A9 /* Build JS Bundle */ = {