better error log for container environment error (#177)

* better error log for container environment error

* logs update

* Update main.go

Co-authored-by: Krisztián Gödrei <krisztian.godrei@bitrise.io>

main.go

@@ -227,6 +227,7 @@ func main() {
  log.Printf("- UploadBitcode: %s", cfg.UploadBitcode)
  log.Printf("- CompileBitcode: %s", cfg.CompileBitcode)
  log.Printf("- TeamID: %s", cfg.TeamID)
+ log.Printf("- ICloudContainerEnvironment: %s", cfg.ICloudContainerEnvironment)
  fmt.Println()
  }
  }
@@ -547,7 +548,8 @@ is available in the $BITRISE_XCODE_RAW_RESULT_TEXT_PATH environment variable`)
  if exportMethod == exportoptions.MethodAppStore {
  iCloudContainerEnvironment = "Production"
  } else if cfg.ICloudContainerEnvironment == "" {
- fail("project uses CloudKit, but iCloud container environment input not specified")
+ fail("Your project uses CloudKit but \"iCloud container environment\" input not specified.\n"+
+ "Export method is: %s (For app-store export method Production container environment is implied.)", exportMethod)
  } else {
  iCloudContainerEnvironment = cfg.ICloudContainerEnvironment
  }