fast-import: Stream very large blobs directly to pack

diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt
index e6d364f53cd14a1738a210e131bc7799fb746abb..79c5f69d421399091b7ee6f71339505edf15ce0c 100644 (file)
--- a/Documentation/git-fast-import.txt
+++ b/Documentation/git-fast-import.txt
@@ -50,6 +50,12 @@ OPTIONS
        importers may wish to lower this, such as to ensure the
        resulting packfiles fit on CDs.
 
+--big-file-threshold=<n>::
+       Maximum size of a blob that fast-import will attempt to
+       create a delta for, expressed in bytes.  The default is 512m
+       (512 MiB).  Some importers may wish to lower this on systems
+       with constrained memory.
+
 --depth=<n>::
        Maximum delta depth, for blob and tree deltification.
        Default is 10.