Add documentation for formatting options objectsize:disk and deltabase. Signed-off-by: Olga Telezhnaia <olyatelezhnaya@xxxxxxxxx> --- Documentation/git-for-each-ref.txt | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index 901faef1bfdce..22d2ff88110cd 100644 --- 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:: + If the object is stored as a delta on-disk, this expands to the 40-hex + sha1 of the delta base object. Otherwise, expands to the null sha1 + (40 zeroes). See `CAVEATS` section below. 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] -- https://github.com/git/git/pull/552
