index-pack: show histogram when emulating "verify-pack -v"
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>
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d1a0ed187c
@ -70,6 +70,7 @@ static struct progress *progress;
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static unsigned char input_buffer[4096];
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static unsigned int input_offset, input_len;
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static off_t consumed_bytes;
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static unsigned deepest_delta;
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static git_SHA_CTX input_ctx;
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static uint32_t input_crc32;
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static int input_fd, output_fd, pack_fd;
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@ -538,6 +539,8 @@ static void resolve_delta(struct object_entry *delta_obj,
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delta_obj->real_type = base->obj->real_type;
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delta_obj->delta_depth = base->obj->delta_depth + 1;
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if (deepest_delta < delta_obj->delta_depth)
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deepest_delta = delta_obj->delta_depth;
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delta_obj->base_object_no = base->obj - objects;
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delta_data = get_data_from_pack(delta_obj);
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base_data = get_base_data(base);
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@ -973,12 +976,17 @@ static void read_idx_option(struct pack_idx_option *opts, const char *pack_name)
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static void show_pack_info(int stat_only)
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{
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int i;
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int i, baseobjects = nr_objects - nr_deltas;
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unsigned long *chain_histogram = NULL;
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if (deepest_delta)
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chain_histogram = xcalloc(deepest_delta, sizeof(unsigned long));
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for (i = 0; i < nr_objects; i++) {
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struct object_entry *obj = &objects[i];
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/* NEEDSWORK: Compute data necessary for the "histogram" here */
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if (is_delta_type(obj->type))
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chain_histogram[obj->delta_depth - 1]++;
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if (stat_only)
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continue;
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printf("%s %-6s %lu %lu %"PRIuMAX,
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@ -992,6 +1000,18 @@ static void show_pack_info(int stat_only)
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}
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putchar('\n');
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}
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if (baseobjects)
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printf("non delta: %d object%s\n",
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baseobjects, baseobjects > 1 ? "s" : "");
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for (i = 0; i < deepest_delta; i++) {
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if (!chain_histogram[i])
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continue;
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printf("chain length = %d: %lu object%s\n",
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i + 1,
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chain_histogram[i],
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chain_histogram[i] > 1 ? "s" : "");
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}
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}
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int cmd_index_pack(int argc, const char **argv, const char *prefix)
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