Return errors, rather than printing them; move PrintError() to front package

back/general.go

@@ -1,10 +1,5 @@
 package back
 
-import (
-	"fmt"
-	"os"
-)
-
 // RemoveTrailingEmptyStrings removes empty strings from the end of a slice.
 func RemoveTrailingEmptyStrings(slice []string) []string {
 	for i := len(slice) - 1; i >= 0; i-- {
@@ -14,16 +9,3 @@ func RemoveTrailingEmptyStrings(slice []string) []string {
 	}
 	return nil
 }
-
-// PrintError prints an error message in the standard libmutton format and exits with the specified exit code.
-// Requires: message (the error message to print),
-// exitCode (the exit code to use),
-// forceHardExit (if true, exit immediately; if false, allow soft exit for interactive clients).
-func PrintError(message string, exitCode int, forceHardExit bool) {
-	fmt.Println(AnsiError + message + AnsiReset)
-	if forceHardExit {
-		os.Exit(exitCode)
-	} else {
-		Exit(exitCode)
-	}
-}