diff-parseopt: convert --no-renames|--[no--rename-empty

[thirdparty/git.git] / Documentation / git-for-each-ref.txt

diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index 901faef1bfdcea991fe1b0a32ab5ecd22771967f..774cecc7ede787d22da5b656fe5299e4830d1d2e 100644 (file)
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -128,13 +128,18 @@ objecttype::
 
 objectsize::
        The size of the object (the same as 'git cat-file -s' reports).
-
+       Append `:disk` to get the size, in bytes, that the object takes up on
+       disk. See the note about on-disk sizes in the `CAVEATS` section below.
 objectname::
        The object name (aka SHA-1).
        For a non-ambiguous abbreviation of the object name append `:short`.
        For an abbreviation of the object name with desired length append
        `:short=<length>`, where the minimum length is MINIMUM_ABBREV. The
        length may be exceeded to ensure unique object names.
+deltabase::
+       This expands to the object name of the delta base for the
+       given object, if it is stored as a delta.  Otherwise it
+       expands to the null object name (all zeroes).
 
 upstream::
        The name of a local ref which can be considered ``upstream''
@@ -361,6 +366,20 @@ This prints the authorname, if present.
 git for-each-ref --format="%(refname)%(if)%(authorname)%(then) Authored by: %(authorname)%(end)"
 ------------
 
+CAVEATS
+-------
+
+Note that the sizes of objects on disk are reported accurately, but care
+should be taken in drawing conclusions about which refs or objects are
+responsible for disk usage. The size of a packed non-delta object may be
+much larger than the size of objects which delta against it, but the
+choice of which object is the base and which is the delta is arbitrary
+and is subject to change during a repack.
+
+Note also that multiple copies of an object may be present in the object
+database; in this case, it is undefined which copy's size or delta base
+will be reported.
+
 SEE ALSO
 --------
 linkgit:git-show-ref[1]