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cat-file: sort and de-dup output of --batch-all-objects

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The sorting we could probably live without, but printing
duplicates is just a hassle for the user, who must then
de-dup themselves (or risk a wrong answer if they are doing
something like counting objects with a particular property).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2015-06-22 07:06:32 -04:00 committed by Junio C Hamano
parent 6a951937ae
commit 3115ee45c8
3 changed files with 18 additions and 12 deletions
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3
Documentation/git-cat-file.txt
View file

@ -74,8 +74,7 @@ OPTIONS
requested batch operation on all objects in the repository and requested batch operation on all objects in the repository and
any alternate object stores (not just reachable objects). any alternate object stores (not just reachable objects).
Requires `--batch` or `--batch-check` be specified. Note that Requires `--batch` or `--batch-check` be specified. Note that
the order of the objects is unspecified, and there may be the objects are visited in order sorted by their hashes.
duplicate entries.
--buffer:: --buffer::
Normally batch output is flushed after each object is output, so Normally batch output is flushed after each object is output, so

22
builtin/cat-file.c
View file

@ -9,6 +9,7 @@
#include "userdiff.h" #include "userdiff.h"
#include "streaming.h" #include "streaming.h"
#include "tree-walk.h" #include "tree-walk.h"
#include "sha1-array.h"
struct batch_options { struct batch_options {
int enabled; int enabled;
@ -324,19 +325,19 @@ struct object_cb_data {
struct expand_data *expand; struct expand_data *expand;
}; };
static int batch_object_cb(const unsigned char *sha1, static void batch_object_cb(const unsigned char sha1[20], void *vdata)
struct object_cb_data *data)
{ {
struct object_cb_data *data = vdata;
hashcpy(data->expand->sha1, sha1); hashcpy(data->expand->sha1, sha1);
batch_object_write(NULL, data->opt, data->expand); batch_object_write(NULL, data->opt, data->expand);
return 0;
} }
static int batch_loose_object(const unsigned char *sha1, static int batch_loose_object(const unsigned char *sha1,
const char *path, const char *path,
void *data) void *data)
{ {
return batch_object_cb(sha1, data); sha1_array_append(data, sha1);
return 0;
} }
static int batch_packed_object(const unsigned char *sha1, static int batch_packed_object(const unsigned char *sha1,
@ -344,7 +345,8 @@ static int batch_packed_object(const unsigned char *sha1,
uint32_t pos, uint32_t pos,
void *data) void *data)
{ {
return batch_object_cb(sha1, data); sha1_array_append(data, sha1);
return 0;
} }
static int batch_objects(struct batch_options *opt) static int batch_objects(struct batch_options *opt)
@ -375,11 +377,17 @@ static int batch_objects(struct batch_options *opt)
data.info.typep = &data.type; data.info.typep = &data.type;
if (opt->all_objects) { if (opt->all_objects) {
struct sha1_array sa = SHA1_ARRAY_INIT;
struct object_cb_data cb; struct object_cb_data cb;
for_each_loose_object(batch_loose_object, &sa, 0);
for_each_packed_object(batch_packed_object, &sa, 0);
cb.opt = opt; cb.opt = opt;
cb.expand = &data; cb.expand = &data;
for_each_loose_object(batch_loose_object, &cb, 0); sha1_array_for_each_unique(&sa, batch_object_cb, &cb);
for_each_packed_object(batch_packed_object, &cb, 0);
sha1_array_clear(&sa);
return 0; return 0;
} }

5
t/t1006-cat-file.sh
View file

@ -548,7 +548,7 @@ test_expect_success 'git cat-file --batch --follow-symlink returns correct sha a
' '
test_expect_success 'cat-file --batch-all-objects shows all objects' ' test_expect_success 'cat-file --batch-all-objects shows all objects' '
# make new repos so we now the full set of objects; we will # make new repos so we know the full set of objects; we will
# also make sure that there are some packed and some loose # also make sure that there are some packed and some loose
# objects, some referenced and some not, and that there are # objects, some referenced and some not, and that there are
# some available only via alternates. # some available only via alternates.
@ -569,8 +569,7 @@ test_expect_success 'cat-file --batch-all-objects shows all objects' '
) >>expect.unsorted && ) >>expect.unsorted &&
sort <expect.unsorted >expect && sort <expect.unsorted >expect &&
git -C all-two cat-file --batch-all-objects \ git -C all-two cat-file --batch-all-objects \
--batch-check="%(objectname)" >actual.unsorted && --batch-check="%(objectname)" >actual &&
sort <actual.unsorted >actual &&
test_cmp expect actual test_cmp expect actual
' '