copy-content: delete destination dirs before copying (#3197)

Signed-off-by: Joe Lanford <[email protected]>
Upstream-repository: operator-lifecycle-manager
Upstream-commit: 3ed3c63ea9f724da7d51062ab7f21da611dc6628

Author: joelanford

staging/operator-lifecycle-manager/cmd/copy-content/main.go

@@ -31,6 +31,10 @@ func main() {
 		*catalogSource: *catalogDestination,
 		*cacheSource:   *cacheDestination,
 	} {
+		if err := os.RemoveAll(to); err != nil {
+			fmt.Printf("failed to remove %s: %s", to, err)
+			os.Exit(1)
+		}
 		if err := copy.Copy(from, to); err != nil {
 			fmt.Printf("failed to copy %s to %s: %s\n", from, to, err)
 			os.Exit(1)