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-rw-r--r--Documentation/rev-list-options.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt
index 96cc89d157..1238bfd915 100644
--- a/Documentation/rev-list-options.txt
+++ b/Documentation/rev-list-options.txt
@@ -227,6 +227,15 @@ ifdef::git-rev-list[]
test the exit status to see if a range of objects is fully
connected (or not). It is faster than redirecting stdout
to `/dev/null` as the output does not have to be formatted.
+
+--disk-usage::
+ Suppress normal output; instead, print the sum of the bytes used
+ for on-disk storage by the selected commits or objects. This is
+ equivalent to piping the output into `git cat-file
+ --batch-check='%(objectsize:disk)'`, except that it runs much
+ faster (especially with `--use-bitmap-index`). See the `CAVEATS`
+ section in linkgit:git-cat-file[1] for the limitations of what
+ "on-disk storage" means.
endif::git-rev-list[]
--cherry-mark::