---- old/flist.c
-+++ new/flist.c
-@@ -54,6 +54,7 @@ extern int non_perishable_cnt;
+diff --git a/compat.c b/compat.c
+--- a/compat.c
++++ b/compat.c
+@@ -41,6 +41,7 @@ extern int checksum_seed;
+ extern int basis_dir_cnt;
+ extern int prune_empty_dirs;
+ extern int protocol_version;
++extern int detect_renamed;
+ extern int protect_args;
+ extern int preserve_uid;
+ extern int preserve_gid;
+@@ -107,6 +108,7 @@ void set_allow_inc_recurse(void)
+ allow_inc_recurse = 0;
+ else if (!am_sender
+ && (delete_before || delete_after
++ || detect_renamed
+ || delay_updates || prune_empty_dirs))
+ allow_inc_recurse = 0;
+ else if (am_server && !local_server
+diff --git a/flist.c b/flist.c
+--- a/flist.c
++++ b/flist.c
+@@ -61,6 +61,7 @@ extern int non_perishable_cnt;
extern int prune_empty_dirs;
extern int copy_links;
extern int copy_unsafe_links;
+extern int detect_renamed;
extern int protocol_version;
extern int sanitize_paths;
extern int prune_empty_dirs;
extern int copy_links;
extern int copy_unsafe_links;
+extern int detect_renamed;
extern int protocol_version;
extern int sanitize_paths;
- extern struct stats stats;
-@@ -78,6 +79,8 @@ static dev_t tmp_rdev;
- static struct idev tmp_idev;
- static char tmp_sum[MD4_SUM_LENGTH];
+ extern int munge_symlinks;
+@@ -118,6 +119,8 @@ static int64 tmp_dev, tmp_ino;
+ #endif
+ static char tmp_sum[MAX_DIGEST_LEN];
- static char empty_sum[MD4_SUM_LENGTH];
- static int flist_count_offset;
-
-@@ -260,6 +263,44 @@ static mode_t from_wire_mode(int mode)
- return mode;
+ static char empty_sum[MAX_DIGEST_LEN];
+ static int flist_count_offset; /* for --delete --progress */
+ static int dir_count = 0;
+@@ -261,6 +264,45 @@ static int is_excluded(char *fname, int is_dir, int filter_level)
+ return 0;
}
+static int fattr_compare(struct file_struct **file1, struct file_struct **file2)
+{
+ struct file_struct *f1 = *file1;
+ struct file_struct *f2 = *file2;
}
+static int fattr_compare(struct file_struct **file1, struct file_struct **file2)
+{
+ struct file_struct *f1 = *file1;
+ struct file_struct *f2 = *file2;
+ the_fattr_list.files = new_array(struct file_struct *, j);
+ if (!the_fattr_list.files)
+ out_of_memory("recv_file_list");
+ memcpy(the_fattr_list.files, flist->files,
+ j * sizeof (struct file_struct *));
+ qsort(the_fattr_list.files, j,
+ the_fattr_list.files = new_array(struct file_struct *, j);
+ if (!the_fattr_list.files)
+ out_of_memory("recv_file_list");
+ memcpy(the_fattr_list.files, flist->files,
+ j * sizeof (struct file_struct *));
+ qsort(the_fattr_list.files, j,
- if (f >= 0) {
- recv_uid_list(f, flist);
-
---- old/generator.c
-+++ new/generator.c
-@@ -77,6 +77,7 @@ extern char *basis_dir[];
+ if (protocol_version < 30) {
+ /* Recv the io_error flag */
+ if (ignore_errors)
+diff --git a/generator.c b/generator.c
+--- a/generator.c
++++ b/generator.c
+@@ -79,6 +79,7 @@ extern char *basis_dir[];
- static FILE *delete_delay_fp = NULL;
+ static int deldelay_size = 0, deldelay_cnt = 0;
+ static char *deldelay_buf = NULL;
+ static int deldelay_fd = -1;
+@@ -112,7 +115,8 @@ static int need_retouch_dir_times;
+ static int need_retouch_dir_perms;
+ static const char *solo_file = NULL;
+ * time (plus the basename, if possible) or (2) the size & checksum. If
+ * we find an exact match down to the dirname, return -1 because we found
+ * an up-to-date file in the transfer, not a renamed file. */
+ * time (plus the basename, if possible) or (2) the size & checksum. If
+ * we find an exact match down to the dirname, return -1 because we found
+ * an up-to-date file in the transfer, not a renamed file. */
+{
+ int low = the_fattr_list.low, high = the_fattr_list.high;
+ int mid, ok_match = -1, good_match = -1;
+{
+ int low = the_fattr_list.low, high = the_fattr_list.high;
+ int mid, ok_match = -1, good_match = -1;
+ if (fmid->modtime == f->modtime
+ && f_name_cmp(fmid, f) == 0)
+ return -1; /* assume we can't help */
+ if (fmid->modtime == f->modtime
+ && f_name_cmp(fmid, f) == 0)
+ return -1; /* assume we can't help */
-+ /* XXX update this to new checksum var idiom! */
-+ F_SUM(f) = pool_alloc(pool, MD4_SUM_LENGTH,
-+ "fattr_find");
-+ file_checksum(fname, F_SUM(f), f->length);
++ file_checksum(fname, F_SUM(f), F_LENGTH(f));
++ f->flags |= FLAG_FILE_SENT;
-+ /* We only use the file if we can hard-link it into our tmp dir. */
-+ if (link(fname, partialptr) == 0) {
-+ if (verbose > 2) {
-+ rprintf(FINFO, "found renamed: %s => %s\n",
-+ fname, partialptr);
++ if (!dry_run) {
++ if ((partialptr = partial_dir_fname(fn)) == NULL
++ || !handle_partial_dir(partialptr, PDIR_CREATE))
++ return;
++ /* We only use the file if we can hard-link it into our tmp dir. */
++ if (link(fname, partialptr) != 0) {
++ if (errno != EEXIST)
++ handle_partial_dir(partialptr, PDIR_DELETE);
++ return;
* its contents, otherwise just checks for content. Returns DR_SUCCESS or
* DR_NOT_EMPTY. Note that fname must point to a MAXPATHLEN buffer! (The
* buffer is used for recursion, but returned unchanged.)
* its contents, otherwise just checks for content. Returns DR_SUCCESS or
* DR_NOT_EMPTY. Note that fname must point to a MAXPATHLEN buffer! (The
* buffer is used for recursion, but returned unchanged.)
-@@ -251,6 +369,8 @@ static enum delret delete_dir_contents(c
+@@ -225,7 +343,9 @@ static enum delret delete_dir_contents(char *fname, int flags)
+ save_filters = push_local_filters(fname, dlen);
+
+ non_perishable_cnt = 0;
++ file_extra_cnt += SUM_EXTRA_CNT;
+ dirlist = get_dirlist(fname, dlen, 0);
++ file_extra_cnt -= SUM_EXTRA_CNT;
+ ret = non_perishable_cnt ? DR_NOT_EMPTY : DR_SUCCESS;
+
+ if (!dirlist->used)
+@@ -262,6 +382,8 @@ static enum delret delete_dir_contents(char *fname, int flags)
* all the --delete-WHEN options. Note that the fbuf pointer must point to a
* MAXPATHLEN buffer with the name of the directory in it (the functions we
* call will append names onto the end, but the old dir value will be restored
- * on exit). */
* all the --delete-WHEN options. Note that the fbuf pointer must point to a
* MAXPATHLEN buffer with the name of the directory in it (the functions we
* call will append names onto the end, but the old dir value will be restored
- * on exit). */
- static void delete_in_dir(struct file_list *flist, char *fbuf,
-- struct file_struct *file, STRUCT_STAT *stp)
-+ struct file_struct *file, STRUCT_STAT *stp, int flags)
++static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev,
++ int flags)
- if (!flist) {
-@@ -357,6 +481,8 @@ static void delete_in_dir(struct file_li
+ if (!fbuf) {
+ change_local_filter_dir(NULL, 0, 0);
+@@ -430,21 +557,28 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
- filesystem_dev = stp->st_dev;
-@@ -389,6 +520,11 @@ static void delete_in_dir(struct file_li
+ filesystem_dev = *fs_dev;
+@@ -454,6 +588,14 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
+ *p++ = '/';
+ remainder = MAXPATHLEN - (p - fbuf);
+
/* If an item in dirlist is not found in flist, delete it
* from the filesystem. */
+ *p++ = '/';
+ remainder = MAXPATHLEN - (p - fbuf);
+
/* If an item in dirlist is not found in flist, delete it
* from the filesystem. */
- for (i = dirlist->count; i--; ) {
-@@ -401,15 +537,22 @@ static void delete_in_dir(struct file_li
+ for (i = dirlist->used; i--; ) {
+@@ -466,16 +608,25 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
-- if (delete_delay_fp)
-+ if (delete_delay_fp && !(flags & DEL_NO_DELETIONS))
- fprintf(delete_delay_fp, "%o %s%c", (short)fp->mode, delbuf, '\0');
- else
+- if (delete_during == 2) {
++ if (delete_during == 2 && !(flags & DEL_NO_DELETIONS)) {
+ if (!remember_delete(fp, delbuf))
+ break;
+ } else
- delete_item(delbuf, fp->mode, NULL, DEL_RECURSE);
- }
+ delete_item(delbuf, fp->mode, NULL, flags);
- delete_item(delbuf, fp->mode, NULL, DEL_RECURSE);
- }
+ delete_item(delbuf, fp->mode, NULL, flags);
-- delete_in_dir(flist, fbuf, file, &st);
-+ delete_in_dir(flist, fbuf, file, &st, 0);
+- delete_in_dir(fbuf, file, &st.st_dev);
++ delete_in_dir(fbuf, file, &st.st_dev, 0);
-- delete_in_dir(NULL, NULL, NULL, NULL);
-+ delete_in_dir(NULL, NULL, NULL, NULL, 0);
+- delete_in_dir(NULL, NULL, &dev_zero);
++ delete_in_dir(NULL, NULL, &dev_zero, 0);
- /* Acts on the_file_list->file's ndx'th item, whose name is fname. If a dir,
-@@ -1152,8 +1296,12 @@ static void recv_generator(char *fname,
- if (real_ret != 0 && one_file_system)
- real_st.st_dev = filesystem_dev;
- if (delete_during && f_out != -1 && !phase && dry_run < 2
-- && (file->flags & FLAG_XFER_DIR))
-- delete_in_dir(the_file_list, fname, file, &real_st);
-+ && (file->flags & FLAG_XFER_DIR)) {
+@@ -1381,8 +1533,12 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
+ }
+ }
+ else if (delete_during && f_out != -1 && !phase && dry_run < 2
+- && (file->flags & FLAG_CONTENT_DIR))
+- delete_in_dir(fname, file, &real_sx.st.st_dev);
++ && (file->flags & FLAG_CONTENT_DIR)) {
-@@ -1406,8 +1554,14 @@ static void recv_generator(char *fname,
- && hard_link_check(file, ndx, fname, statret, &st,
- itemizing, code, HL_SKIP))
- return;
+@@ -1660,8 +1816,14 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
+ goto cleanup;
+ }
+ #endif
- return;
-@@ -1593,13 +1747,19 @@ void generate_files(int f_out, struct fi
- (long)getpid(), flist->count);
- }
+ goto cleanup;
+@@ -2004,6 +2166,12 @@ void generate_files(int f_out, const char *local_name)
+ if (verbose > 2)
+ rprintf(FINFO, "generator starting pid=%ld\n", (long)getpid());
- if (delete_before && !local_name && flist->count > 0)
- do_delete_pass(flist);
- if (delete_during == 2)
- start_delete_temp();
+ if (delete_before && !solo_file && cur_flist->used > 0)
+ do_delete_pass();
+ if (delete_during == 2) {
+@@ -2014,7 +2182,7 @@ void generate_files(int f_out, const char *local_name)
+ }
-@@ -1654,7 +1814,23 @@ void generate_files(int f_out, struct fi
- }
- recv_generator(NULL, NULL, 0, 0, 0, code, -1);
+@@ -2052,7 +2220,7 @@ void generate_files(int f_out, const char *local_name)
+ dirdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
+ } else
+ dirdev = MAKEDEV(0, 0);
+- delete_in_dir(f_name(fp, fbuf), fp, &dirdev);
++ delete_in_dir(f_name(fp, fbuf), fp, &dirdev, 0);
+ }
+ }
+ }
+@@ -2095,7 +2263,21 @@ void generate_files(int f_out, const char *local_name)
+ } while ((cur_flist = cur_flist->next) != NULL);
+
-- delete_in_dir(NULL, NULL, NULL, NULL);
-+ delete_in_dir(NULL, NULL, NULL, NULL, 0);
-+
+- delete_in_dir(NULL, NULL, &dev_zero);
++ delete_in_dir(NULL, NULL, &dev_zero, 0);
-+ recv_generator(fbuf, file, i, itemizing,
-+ maybe_ATTRS_REPORT, code, f_out);
++ recv_generator(fbuf, file, i, itemizing, code, f_out);
- csum_length = SUM_LENGTH;
---- old/options.c
-+++ new/options.c
-@@ -78,6 +78,7 @@ int am_generator = 0;
+ if (verbose > 2)
+ rprintf(FINFO, "generate_files phase=%d\n", phase);
+diff --git a/options.c b/options.c
+--- a/options.c
++++ b/options.c
+@@ -81,6 +81,7 @@ int am_generator = 0;
rprintf(F," --modify-window=NUM compare mod-times with reduced accuracy\n");
rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
rprintf(F," -y, --fuzzy find similar file for basis if no dest file\n");
rprintf(F," --modify-window=NUM compare mod-times with reduced accuracy\n");
rprintf(F," -T, --temp-dir=DIR create temporary files in directory DIR\n");
rprintf(F," -y, --fuzzy find similar file for basis if no dest file\n");
rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n");
rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n");
rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n");
{"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
{"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
{"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
+ {"detect-renamed", 0, POPT_ARG_NONE, &detect_renamed, 0, 0, 0 },
{"fuzzy", 'y', POPT_ARG_NONE, &fuzzy_basis, 0, 0, 0 },
{"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
{"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
{"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
{"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
+ {"detect-renamed", 0, POPT_ARG_NONE, &detect_renamed, 0, 0, 0 },
{"fuzzy", 'y', POPT_ARG_NONE, &fuzzy_basis, 0, 0, 0 },
{"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
- {"compress-level", 0, POPT_ARG_INT, &def_compress_level, 'z', 0, 0 },
-@@ -1361,7 +1364,7 @@ int parse_arguments(int *argc, const cha
+ {"no-compress", 0, POPT_ARG_VAL, &do_compression, 0, 0, 0 },
+@@ -1541,7 +1544,7 @@ int parse_arguments(int *argc_p, const char ***argv_p, int frommain)
snprintf(err_buf, sizeof err_buf,
"--%s cannot be used with --%s\n",
append_mode ? "append" : "inplace",
snprintf(err_buf, sizeof err_buf,
"--%s cannot be used with --%s\n",
append_mode ? "append" : "inplace",
- }
-
- if (modify_window_set) {
---- old/rsync.yo
-+++ new/rsync.yo
-@@ -364,6 +364,7 @@ to the detailed description below for a
+ } else {
+ if (skip_compress) {
+ if (asprintf(&arg, "--skip-compress=%s", skip_compress) < 0)
+diff --git a/rsync.yo b/rsync.yo
+--- a/rsync.yo
++++ b/rsync.yo
+@@ -385,6 +385,7 @@ to the detailed description below for a complete description. verb(
--modify-window=NUM compare mod-times with reduced accuracy
-T, --temp-dir=DIR create temporary files in directory DIR
-y, --fuzzy find similar file for basis if no dest file
--modify-window=NUM compare mod-times with reduced accuracy
-T, --temp-dir=DIR create temporary files in directory DIR
-y, --fuzzy find similar file for basis if no dest file
--compare-dest=DIR also compare received files relative to DIR
--copy-dest=DIR ... and include copies of unchanged files
--link-dest=DIR hardlink to files in DIR when unchanged
--compare-dest=DIR also compare received files relative to DIR
--copy-dest=DIR ... and include copies of unchanged files
--link-dest=DIR hardlink to files in DIR when unchanged
-+dit(bf(--detect-renamed)) This option tells rsync to scan the receiving
-+side for files that have been renamed, and to use any that are found as
-+alternate basis files to help speed up the transfer.
++dit(bf(--detect-renamed)) With this option, for each new source file
++(call it em(src/S)), rsync looks for a file em(dest/D) anywhere in the
++destination that passes the quick check with em(src/S). If such a em(dest/D)
++is found, rsync uses it as an alternate basis for transferring em(S). The
++idea is that if em(src/S) was renamed from em(src/D) (as opposed to em(src/S)
++passing the quick check with em(dest/D) by coincidence), the delta-transfer
++algorithm will find that all the data matches between em(src/S) and em(dest/D),
++and the transfer will be really fast.
++
+By default, alternate-basis files are hard-linked into a directory named
+".~tmp~" in each file's destination directory, but if you've specified
+the bf(--partial-dir) option, that directory will be used instead. These
+By default, alternate-basis files are hard-linked into a directory named
+".~tmp~" in each file's destination directory, but if you've specified
+the bf(--partial-dir) option, that directory will be used instead. These
dit(bf(--compare-dest=DIR)) This option instructs rsync to use em(DIR) on
the destination machine as an additional hierarchy to compare destination
files against doing transfers (if the files are missing in the destination
dit(bf(--compare-dest=DIR)) This option instructs rsync to use em(DIR) on
the destination machine as an additional hierarchy to compare destination
files against doing transfers (if the files are missing in the destination