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-rw-r--r--diffcore-rename.c64
1 files changed, 57 insertions, 7 deletions
diff --git a/diffcore-rename.c b/diffcore-rename.c
index e189f407af..99e63e90f8 100644
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -1,4 +1,5 @@
/*
+ *
* Copyright (C) 2005 Junio C Hamano
*/
#include "cache.h"
@@ -7,6 +8,7 @@
#include "object-store.h"
#include "hashmap.h"
#include "progress.h"
+#include "promisor-remote.h"
/* Table of rename/copy destinations */
@@ -128,10 +130,46 @@ struct diff_score {
short name_score;
};
+struct prefetch_options {
+ struct repository *repo;
+ int skip_unmodified;
+};
+static void prefetch(void *prefetch_options)
+{
+ struct prefetch_options *options = prefetch_options;
+ int i;
+ struct oid_array to_fetch = OID_ARRAY_INIT;
+
+ for (i = 0; i < rename_dst_nr; i++) {
+ if (rename_dst[i].pair)
+ /*
+ * The loop in diffcore_rename() will not need these
+ * blobs, so skip prefetching.
+ */
+ continue; /* already found exact match */
+ diff_add_if_missing(options->repo, &to_fetch,
+ rename_dst[i].two);
+ }
+ for (i = 0; i < rename_src_nr; i++) {
+ if (options->skip_unmodified &&
+ diff_unmodified_pair(rename_src[i].p))
+ /*
+ * The loop in diffcore_rename() will not need these
+ * blobs, so skip prefetching.
+ */
+ continue;
+ diff_add_if_missing(options->repo, &to_fetch,
+ rename_src[i].p->one);
+ }
+ promisor_remote_get_direct(options->repo, to_fetch.oid, to_fetch.nr);
+ oid_array_clear(&to_fetch);
+}
+
static int estimate_similarity(struct repository *r,
struct diff_filespec *src,
struct diff_filespec *dst,
- int minimum_score)
+ int minimum_score,
+ int skip_unmodified)
{
/* src points at a file that existed in the original tree (or
* optionally a file in the destination tree) and dst points
@@ -148,6 +186,15 @@ static int estimate_similarity(struct repository *r,
*/
unsigned long max_size, delta_size, base_size, src_copied, literal_added;
int score;
+ struct diff_populate_filespec_options dpf_options = {
+ .check_size_only = 1
+ };
+ struct prefetch_options prefetch_options = {r, skip_unmodified};
+
+ if (r == the_repository && has_promisor_remote()) {
+ dpf_options.missing_object_cb = prefetch;
+ dpf_options.missing_object_data = &prefetch_options;
+ }
/* We deal only with regular files. Symlink renames are handled
* only when they are exact matches --- in other words, no edits
@@ -166,10 +213,10 @@ static int estimate_similarity(struct repository *r,
* say whether the size is valid or not!)
*/
if (!src->cnt_data &&
- diff_populate_filespec(r, src, CHECK_SIZE_ONLY))
+ diff_populate_filespec(r, src, &dpf_options))
return 0;
if (!dst->cnt_data &&
- diff_populate_filespec(r, dst, CHECK_SIZE_ONLY))
+ diff_populate_filespec(r, dst, &dpf_options))
return 0;
max_size = ((src->size > dst->size) ? src->size : dst->size);
@@ -187,9 +234,11 @@ static int estimate_similarity(struct repository *r,
if (max_size * (MAX_SCORE-minimum_score) < delta_size * MAX_SCORE)
return 0;
- if (!src->cnt_data && diff_populate_filespec(r, src, 0))
+ dpf_options.check_size_only = 0;
+
+ if (!src->cnt_data && diff_populate_filespec(r, src, &dpf_options))
return 0;
- if (!dst->cnt_data && diff_populate_filespec(r, dst, 0))
+ if (!dst->cnt_data && diff_populate_filespec(r, dst, &dpf_options))
return 0;
if (diffcore_count_changes(r, src, dst,
@@ -261,7 +310,7 @@ static unsigned int hash_filespec(struct repository *r,
struct diff_filespec *filespec)
{
if (!filespec->oid_valid) {
- if (diff_populate_filespec(r, filespec, 0))
+ if (diff_populate_filespec(r, filespec, NULL))
return 0;
hash_object_file(r->hash_algo, filespec->data, filespec->size,
"blob", &filespec->oid);
@@ -566,7 +615,8 @@ void diffcore_rename(struct diff_options *options)
this_src.score = estimate_similarity(options->repo,
one, two,
- minimum_score);
+ minimum_score,
+ skip_unmodified);
this_src.name_score = basename_same(one, two);
this_src.dst = i;
this_src.src = j;