I have benchmarked this a little, and it appears to slow things down
for a local copy, so the old algorithm is used for local copies.
+To use this patch, run these commands for a successful build:
+
+ patch -p1 <patches/early-checksum.diff
+ ./configure (optional if already run)
+ make
+
--- old/flist.c
+++ new/flist.c
@@ -31,6 +31,7 @@ extern int am_daemon;
extern int module_id;
extern int ignore_errors;
extern int numeric_ids;
-@@ -693,6 +694,16 @@ static struct file_struct *receive_file_
+@@ -697,6 +698,16 @@ static struct file_struct *receive_file_
sum = empty_sum;
}
read_buf(f, sum, checksum_len);
continue;
best_match = j;
match_level = 2;
-@@ -1210,7 +1214,7 @@ static void recv_generator(char *fname,
+@@ -1215,7 +1219,7 @@ static void recv_generator(char *fname,
;
else if (fnamecmp_type == FNAMECMP_FUZZY)
;
handle_partial_dir(partialptr, PDIR_DELETE);
--- old/hlink.c
+++ new/hlink.c
-@@ -220,7 +220,7 @@ int hard_link_check(struct file_struct *
- itemizing = code = 0;
+@@ -224,7 +224,7 @@ int hard_link_check(struct file_struct *
+ }
break;
}
- if (!unchanged_file(cmpbuf, file, &st3))
+ strlcpy(olddir, curr_dir, sizeof olddir);
+ if (always_checksum && !local_server && argc > 0)
-+ pre_checksum = push_dir(argv[0]);
++ pre_checksum = push_dir(argv[0], 0);
+
flist = recv_file_list(f_in);
verbose = save_verbose;
+ strlcpy(olddir, curr_dir, sizeof olddir);
+ if (always_checksum && !local_server)
-+ pre_checksum = push_dir(argv[0]);
++ pre_checksum = push_dir(argv[0], 0);
+
if (write_batch && !am_server)
start_write_batch(f_in);