path: root/builtin/cat-file.c
diff options
authorJeff King <>2013-07-10 11:46:25 (GMT)
committerJunio C Hamano <>2013-07-12 16:18:42 (GMT)
commita4ac1061783d25db4253309d2b58b9c2b89401d7 (patch)
treea7fcbe4bd73f9f03593393f550a22502b51105ad /builtin/cat-file.c
parent93d2a607ba05fba31442941d0425019120993846 (diff)
cat-file: add %(objectsize:disk) format atom
This atom is just like %(objectsize), except that it shows the on-disk size of the object rather than the object's true size. In other words, it makes the "disk_size" query of sha1_object_info_extended available via the command-line. This can be used for rough attribution of disk usage to particular refs, though see the caveats in the documentation. This patch does not include any tests, as the exact numbers returned are volatile and subject to zlib and packing decisions. We cannot even reliably guarantee that the on-disk size is smaller than the object content (though in general this should be the case for non-trivial objects). Signed-off-by: Jeff King <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'builtin/cat-file.c')
1 files changed, 6 insertions, 0 deletions
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index b43a0c5..11fa8c0 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -118,6 +118,7 @@ struct expand_data {
unsigned char sha1[20];
enum object_type type;
unsigned long size;
+ unsigned long disk_size;
* If mark_query is true, we do not expand anything, but rather
@@ -155,6 +156,11 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len,
data->info.sizep = &data->size;
strbuf_addf(sb, "%lu", data->size);
+ } else if (is_atom("objectsize:disk", atom, len)) {
+ if (data->mark_query)
+ data->info.disk_sizep = &data->disk_size;
+ else
+ strbuf_addf(sb, "%lu", data->disk_size);
} else
die("unknown format element: %.*s", len, atom);