Index: utils/pub/source.dart |
diff --git a/utils/pub/source.dart b/utils/pub/source.dart |
index 839a20a38b618801003398af7631a4a434241d53..b879a5e9ea79ea103a23f0cc8086ebfa7a182142 100644 |
--- a/utils/pub/source.dart |
+++ b/utils/pub/source.dart |
@@ -103,6 +103,10 @@ class Source { |
* [path] is guaranteed not to exist, and its parent directory is guaranteed |
* to exist. |
* |
+ * Note that [path] may be deleted. If re-installing a package that has |
+ * already been installed would be costly or impossible, |
+ * [installToSystemCache] should be implemented instead of [install]. |
+ * |
* This doesn't need to be implemented if [installToSystemCache] is |
* implemented. |
*/ |