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index-pack: show histogram when emulating "verify-pack -v"

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The histogram produced by "verify-pack -v" always had an artificial
limit of 50, but index-pack knows what the maximum delta depth is, so
we do not have to limit it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2011-06-03 15:32:16 -07:00
parent 38a4556198
commit d1a0ed187c
1 changed files with 23 additions and 3 deletions
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26
builtin/index-pack.c
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@ -70,6 +70,7 @@ static struct progress *progress;
static unsigned char input_buffer[4096];
static unsigned int input_offset, input_len;
static off_t consumed_bytes;
static unsigned deepest_delta;
static git_SHA_CTX input_ctx;
static uint32_t input_crc32;
static int input_fd, output_fd, pack_fd;
@ -538,6 +539,8 @@ static void resolve_delta(struct object_entry *delta_obj,
delta_obj->real_type = base->obj->real_type;
delta_obj->delta_depth = base->obj->delta_depth + 1;
if (deepest_delta < delta_obj->delta_depth)
deepest_delta = delta_obj->delta_depth;
delta_obj->base_object_no = base->obj - objects;
delta_data = get_data_from_pack(delta_obj);
base_data = get_base_data(base);
@ -973,12 +976,17 @@ static void read_idx_option(struct pack_idx_option *opts, const char *pack_name)
static void show_pack_info(int stat_only)
{
int i;
int i, baseobjects = nr_objects - nr_deltas;
unsigned long *chain_histogram = NULL;
if (deepest_delta)
chain_histogram = xcalloc(deepest_delta, sizeof(unsigned long));
for (i = 0; i < nr_objects; i++) {
struct object_entry *obj = &objects[i];
/* NEEDSWORK: Compute data necessary for the "histogram" here */
if (is_delta_type(obj->type))
chain_histogram[obj->delta_depth - 1]++;
if (stat_only)
continue;
printf("%s %-6s %lu %lu %"PRIuMAX,
@ -992,6 +1000,18 @@ static void show_pack_info(int stat_only)
}
putchar('\n');
}
if (baseobjects)
printf("non delta: %d object%s\n",
baseobjects, baseobjects > 1 ? "s" : "");
for (i = 0; i < deepest_delta; i++) {
if (!chain_histogram[i])
continue;
printf("chain length = %d: %lu object%s\n",
i + 1,
chain_histogram[i],
chain_histogram[i] > 1 ? "s" : "");
}
}
int cmd_index_pack(int argc, const char **argv, const char *prefix)