a file that can't use it, while missing out on giving it to a file
that could use it.
---- old/flist.c
-+++ new/flist.c
-@@ -54,6 +54,7 @@ extern int non_perishable_cnt;
+based-on: 181c9faf928faad08ef095f4667afe460ec3bef6
+diff --git a/compat.c b/compat.c
+--- a/compat.c
++++ b/compat.c
+@@ -40,6 +40,7 @@ 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;
+@@ -119,6 +120,7 @@ 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/delete.c b/delete.c
+--- a/delete.c
++++ b/delete.c
+@@ -25,6 +25,7 @@
+ extern int am_root;
+ extern int make_backups;
+ extern int max_delete;
++extern int detect_renamed;
+ extern char *backup_dir;
+ extern char *backup_suffix;
+ extern int backup_suffix_len;
+@@ -45,6 +46,8 @@ static inline int is_backup_file(char *fn)
+ * 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.)
++ *
++ * Note: --detect-rename may use this routine with DEL_NO_DELETIONS set!
+ */
+ static enum delret delete_dir_contents(char *fname, uint16 flags)
+ {
+@@ -64,7 +67,9 @@ static enum delret delete_dir_contents(char *fname, uint16 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)
+@@ -104,7 +109,8 @@ static enum delret delete_dir_contents(char *fname, uint16 flags)
+ if (S_ISDIR(fp->mode)) {
+ if (delete_dir_contents(fname, flags | DEL_RECURSE) != DR_SUCCESS)
+ ret = DR_NOT_EMPTY;
+- }
++ } else if (detect_renamed && S_ISREG(fp->mode))
++ look_for_rename(fp, fname);
+ if (delete_item(fname, fp->mode, flags) != DR_SUCCESS)
+ ret = DR_NOT_EMPTY;
+ }
+@@ -127,6 +133,8 @@ static enum delret delete_dir_contents(char *fname, uint16 flags)
+ *
+ * Note that fbuf must point to a MAXPATHLEN buffer if the mode indicates it's
+ * a directory! (The buffer is used for recursion, but returned unchanged.)
++ *
++ * Also note: --detect-rename may use this routine with DEL_NO_DELETIONS set!
+ */
+ enum delret delete_item(char *fbuf, uint16 mode, uint16 flags)
+ {
+diff --git a/flist.c b/flist.c
+--- a/flist.c
++++ b/flist.c
+@@ -63,6 +63,7 @@ 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 struct stats stats;
-@@ -80,6 +81,8 @@ static struct idev tmp_idev;
+ extern int munge_symlinks;
+@@ -124,6 +125,8 @@ static int64 tmp_dev, tmp_ino;
#endif
- static char tmp_sum[MD4_SUM_LENGTH];
+ static char tmp_sum[MAX_DIGEST_LEN];
+struct file_list the_fattr_list;
+
- static char empty_sum[MD4_SUM_LENGTH];
- static int flist_count_offset;
+ static char empty_sum[MAX_DIGEST_LEN];
+ static int flist_count_offset; /* for --delete --progress */
-@@ -262,6 +265,44 @@ static mode_t from_wire_mode(int mode)
- return mode;
+@@ -291,6 +294,45 @@ static int is_excluded(const 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;
++ int64 len1 = F_LENGTH(f1), len2 = F_LENGTH(f2);
+ int diff;
+
-+ if (!f1->basename || !S_ISREG(f1->mode) || !f1->length) {
-+ if (!f2->basename || !S_ISREG(f2->mode) || !f2->length)
++ if (!f1->basename || !S_ISREG(f1->mode) || !len1) {
++ if (!f2->basename || !S_ISREG(f2->mode) || !len2)
+ return 0;
+ return 1;
+ }
-+ if (!f2->basename || !S_ISREG(f2->mode) || !f2->length)
++ if (!f2->basename || !S_ISREG(f2->mode) || !len2)
+ return -1;
+
+ /* Don't use diff for values that are longer than an int. */
-+ if (f1->length != f2->length)
-+ return f1->length < f2->length ? -1 : 1;
++ if (len1 != len2)
++ return len1 < len2 ? -1 : 1;
+
+ if (always_checksum) {
+ diff = u_memcmp(F_SUM(f1), F_SUM(f2), checksum_len);
+}
+
static void send_directory(int f, struct file_list *flist,
- char *fbuf, int len);
+ char *fbuf, int len, int flags);
-@@ -1414,6 +1455,25 @@ struct file_list *recv_file_list(int f)
+@@ -2474,6 +2516,25 @@ struct file_list *recv_file_list(int f)
- clean_flist(flist, relative_paths, 1);
+ flist_sort_and_clean(flist, relative_paths);
+ if (detect_renamed) {
-+ int j = flist->count;
-+ the_fattr_list.count = j;
++ int j = flist->used;
++ the_fattr_list.used = 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,
-+ sizeof the_fattr_list.files[0], (int (*)())fattr_compare);
++ sizeof the_fattr_list.files[0], (int (*)())fattr_compare);
+ the_fattr_list.low = 0;
+ while (j-- > 0) {
+ struct file_struct *fp = the_fattr_list.files[j];
-+ if (fp->basename && S_ISREG(fp->mode) && fp->length)
++ if (fp->basename && S_ISREG(fp->mode) && F_LENGTH(fp))
+ break;
+ }
+ the_fattr_list.high = j;
+ }
+
- if (f >= 0) {
- recv_uid_list(f, flist);
-
---- old/generator.c
-+++ new/generator.c
-@@ -76,6 +76,7 @@ extern char *basis_dir[];
+ if (protocol_version < 30) {
+ /* Recv the io_error flag */
+ int err = read_int(f);
+diff --git a/generator.c b/generator.c
+--- a/generator.c
++++ b/generator.c
+@@ -81,6 +81,7 @@ extern char *partial_dir;
extern int compare_dest;
extern int copy_dest;
extern int link_dest;
+extern int detect_renamed;
extern int whole_file;
extern int list_only;
- extern int new_root_dir;
-@@ -91,6 +92,7 @@ extern char *backup_dir;
- extern char *backup_suffix;
- extern int backup_suffix_len;
- extern struct file_list *the_file_list;
+ extern int read_batch;
+@@ -98,10 +99,12 @@ extern uid_t our_uid;
+ extern char *basis_dir[MAX_BASIS_DIRS+1];
+ extern struct file_list *cur_flist, *first_flist, *dir_flist;
+ extern filter_rule_list filter_list, daemon_filter_list;
+extern struct file_list the_fattr_list;
- extern struct filter_list_struct server_filter_list;
- int ignore_perishable = 0;
-@@ -98,12 +100,14 @@ int non_perishable_cnt = 0;
int maybe_ATTRS_REPORT = 0;
- static int deletion_count = 0; /* used to implement --max-delete */
+ static dev_t dev_zero;
+static int unexplored_dirs = 1;
static int deldelay_size = 0, deldelay_cnt = 0;
static char *deldelay_buf = NULL;
static int deldelay_fd = -1;
- static BOOL solo_file = 0;
+@@ -181,6 +184,8 @@ static int remember_delete(struct file_struct *file, const char *fname, int flag
+ if (!flush_delete_delay())
+ return 0;
+ }
++ if (flags & DEL_NO_DELETIONS)
++ return DR_SUCCESS;
--/* For calling delete_item() and delete_dir_contents(). */
-+/* For calling delete_item(), delete_dir_contents(), and delete_in_dir(). */
-+#define DEL_NO_DELETIONS (1<<0)
- #define DEL_RECURSE (1<<1) /* recurse */
- #define DEL_DIR_IS_EMPTY (1<<2) /* internal delete_FUNCTIONS use only */
+ return 1;
+ }
+@@ -272,13 +277,18 @@ static void do_delayed_deletions(char *delbuf)
+ * 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(char *fbuf, struct file_struct *file, dev_t *fs_dev)
++ * on exit).
++ *
++ * Note: --detect-rename may use this routine with DEL_NO_DELETIONS set!
++ */
++static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev,
++ int del_flags)
+ {
+ static int already_warned = 0;
+ struct file_list *dirlist;
+- char delbuf[MAXPATHLEN];
+- int dlen, i;
++ char *p, delbuf[MAXPATHLEN];
++ unsigned remainder;
++ int dlen, i, restore_dot = 0;
+ int save_uid_ndx = uid_ndx;
+
+ if (!fbuf) {
+@@ -293,17 +303,22 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
+ maybe_send_keepalive();
+
+ if (io_error && !ignore_errors) {
+- if (already_warned)
++ if (!already_warned) {
++ rprintf(FINFO,
++ "IO error encountered -- skipping file deletion\n");
++ already_warned = 1;
++ }
++ if (!detect_renamed)
+ return;
+- rprintf(FINFO,
+- "IO error encountered -- skipping file deletion\n");
+- already_warned = 1;
+- return;
++ del_flags |= DEL_NO_DELETIONS;
+ }
+
+ dlen = strlen(fbuf);
+ change_local_filter_dir(fbuf, dlen, F_DEPTH(file));
+
++ if (detect_renamed)
++ unexplored_dirs--;
++
+ if (one_file_system) {
+ if (file->flags & FLAG_TOP_DIR)
+ filesystem_dev = *fs_dev;
+@@ -316,6 +331,14 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
+
+ dirlist = get_dirlist(fbuf, dlen, 0);
+
++ p = fbuf + dlen;
++ if (dlen == 1 && *fbuf == '.') {
++ restore_dot = 1;
++ p = fbuf;
++ } else if (dlen != 1 || *fbuf != '/')
++ *p++ = '/';
++ remainder = MAXPATHLEN - (p - fbuf);
++
+ /* If an item in dirlist is not found in flist, delete it
+ * from the filesystem. */
+ for (i = dirlist->used; i--; ) {
+@@ -328,6 +351,10 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
+ f_name(fp, NULL));
+ continue;
+ }
++ if (detect_renamed && S_ISREG(fp->mode)) {
++ strlcpy(p, fp->basename, remainder);
++ look_for_rename(fp, fbuf);
++ }
+ /* Here we want to match regardless of file type. Replacement
+ * of a file with one of another type is handled separately by
+ * a delete_item call with a DEL_MAKE_ROOM flag. */
+@@ -336,14 +363,19 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
+ if (!(fp->mode & S_IWUSR) && !am_root && (uid_t)F_OWNER(fp) == our_uid)
+ flags |= DEL_NO_UID_WRITE;
+ f_name(fp, delbuf);
+- if (delete_during == 2) {
+- if (!remember_delete(fp, delbuf, flags))
++ if (delete_during == 2 && !(del_flags & DEL_NO_DELETIONS)) {
++ if (!remember_delete(fp, delbuf, del_flags | flags))
+ break;
+ } else
+- delete_item(delbuf, fp->mode, flags);
+- }
++ delete_item(delbuf, fp->mode, del_flags | flags);
++ } else if (detect_renamed && S_ISDIR(fp->mode))
++ unexplored_dirs++;
+ }
+
++ if (restore_dot)
++ fbuf[0] = '.';
++ fbuf[dlen] = '\0';
++
+ flist_free(dirlist);
+
+ if (!save_uid_ndx) {
+@@ -381,14 +413,122 @@ static void do_delete_pass(void)
+ || !S_ISDIR(st.st_mode))
+ continue;
+
+- delete_in_dir(fbuf, file, &st.st_dev);
++ delete_in_dir(fbuf, file, &st.st_dev, 0);
+ }
+- delete_in_dir(NULL, NULL, &dev_zero);
++ delete_in_dir(NULL, NULL, &dev_zero, 0);
-@@ -125,11 +129,121 @@ static int is_backup_file(char *fn)
- return k > 0 && strcmp(fn+k, backup_suffix) == 0;
+ if (INFO_GTE(FLIST, 2) && !am_server)
+ rprintf(FINFO, " \r");
}
+/* Search for a regular file that matches either (1) the size & modified
+ * 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. */
-+static int fattr_find(struct file_struct *f, char *fname, alloc_pool_t pool)
++static int fattr_find(struct file_struct *f, char *fname)
+{
+ int low = the_fattr_list.low, high = the_fattr_list.high;
+ int mid, ok_match = -1, good_match = -1;
+ while (low <= high) {
+ mid = (low + high) / 2;
+ fmid = the_fattr_list.files[mid];
-+ if (fmid->length != f->length) {
-+ if (fmid->length < f->length)
++ if (F_LENGTH(fmid) != F_LENGTH(f)) {
++ if (F_LENGTH(fmid) < F_LENGTH(f))
+ low = mid + 1;
+ else
+ high = mid - 1;
+ continue;
+ }
+ if (always_checksum) {
-+ if (!F_SUM(f)) {
++ /* We use the FLAG_FILE_SENT flag to indicate when we
++ * have computed the checksum for an entry. */
++ if (!(f->flags & FLAG_FILE_SENT)) {
+ 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;
+ }
+ diff = u_memcmp(F_SUM(fmid), F_SUM(f), checksum_len);
+ if (diff) {
+ return good_match >= 0 ? good_match : ok_match;
+}
+
-+static void look_for_rename(struct file_struct *file, char *fname,
-+ alloc_pool_t pool)
++void look_for_rename(struct file_struct *file, char *fname)
+{
+ struct file_struct *fp;
+ char *partialptr, *fn;
+ STRUCT_STAT st;
+ int ndx;
+
-+ if ((ndx = fattr_find(file, fname, pool)) < 0)
++ if (!partial_dir || (ndx = fattr_find(file, fname)) < 0)
+ return;
+
+ fp = the_fattr_list.files[ndx];
+ /* We don't provide an alternate-basis file if there is a basis file. */
+ if (link_stat(fn, &st, 0) == 0)
+ return;
-+ 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 (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;
+ }
-+ return;
+ }
+
-+ if (errno != EEXIST)
-+ handle_partial_dir(partialptr, PDIR_DELETE);
++ /* I think this falls into the -vv category with "%s is uptodate", etc. */
++ if (INFO_GTE(MISC, 2))
++ rprintf(FINFO, "found renamed: %s => %s\n", fname, fn);
+}
+
- /* Delete a file or directory. If DEL_RECURSE is set in the flags, this will
- * delete recursively.
- *
- * Note that fbuf must point to a MAXPATHLEN buffer if the mode indicates it's
- * a directory! (The buffer is used for recursion, but returned unchanged.)
-+ *
-+ * Also note: --detect-rename may use this routine with DEL_NO_DELETIONS set!
- */
- static enum delret delete_item(char *fbuf, int mode, char *replace, int flags)
- {
-@@ -151,6 +265,8 @@ static enum delret delete_item(char *fbu
- goto check_ret;
- /* OK: try to delete the directory. */
- }
-+ if (flags & DEL_NO_DELETIONS)
-+ return DR_SUCCESS;
-
- if (!replace && max_delete >= 0 && ++deletion_count > max_delete)
- return DR_AT_LIMIT;
-@@ -197,6 +313,8 @@ static enum delret delete_item(char *fbu
- * 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.)
-+ *
-+ * Note: --detect-rename may use this routine with DEL_NO_DELETIONS set!
- */
- static enum delret delete_dir_contents(char *fname, int flags)
- {
-@@ -253,6 +371,8 @@ static enum delret delete_dir_contents(c
- if (S_ISDIR(fp->mode)
- && delete_dir_contents(fname, flags | DEL_RECURSE) != DR_SUCCESS)
- ret = DR_NOT_EMPTY;
-+ if (detect_renamed && S_ISREG(fp->mode))
-+ look_for_rename(fp, fname, dirlist->file_pool);
- if (delete_item(fname, fp->mode, NULL, flags) != DR_SUCCESS)
- ret = DR_NOT_EMPTY;
- }
-@@ -405,15 +525,19 @@ static void do_delayed_deletions(char *d
- * 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). */
-+ * on exit).
-+ *
-+ * Note: --detect-rename may use this routine with DEL_NO_DELETIONS set!
-+ */
- 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)
+ int unchanged_attrs(const char *fname, struct file_struct *file, stat_x *sxp)
{
- static int min_depth = MAXPATHLEN, cur_depth = -1;
- static void *filt_array[MAXPATHLEN/2+1];
- static int already_warned = 0;
- struct file_list *dirlist;
-- char delbuf[MAXPATHLEN];
-+ char *p, delbuf[MAXPATHLEN];
-+ unsigned remainder;
- int dlen, i;
-
- if (!flist) {
-@@ -427,6 +551,8 @@ static void delete_in_dir(struct file_li
- if (verbose > 2)
- rprintf(FINFO, "delete_in_dir(%s)\n", fbuf);
-
-+ flags |= DEL_RECURSE;
-+
- if (allowed_lull)
- maybe_send_keepalive();
-
-@@ -434,12 +560,14 @@ static void delete_in_dir(struct file_li
- return; /* Impossible... */
-
- if (io_error && !(lp_ignore_errors(module_id) || ignore_errors)) {
-- if (already_warned)
-+ if (!already_warned) {
-+ rprintf(FINFO,
-+ "IO error encountered -- skipping file deletion\n");
-+ already_warned = 1;
-+ }
-+ if (!detect_renamed)
- return;
-- rprintf(FINFO,
-- "IO error encountered -- skipping file deletion\n");
-- already_warned = 1;
-- return;
-+ flags |= DEL_NO_DELETIONS;
+ #if !defined HAVE_LUTIMES || !defined HAVE_UTIMES
+@@ -1042,6 +1182,7 @@ static void list_file_entry(struct file_struct *f)
}
-
- while (cur_depth >= file->dir.depth && cur_depth >= min_depth)
-@@ -450,6 +578,9 @@ static void delete_in_dir(struct file_li
- dlen = strlen(fbuf);
- filt_array[cur_depth] = push_local_filters(fbuf, dlen);
-
-+ if (detect_renamed)
-+ unexplored_dirs--;
-+
- if (one_file_system) {
- if (file->flags & FLAG_TOP_DIR)
- filesystem_dev = stp->st_dev;
-@@ -459,6 +590,11 @@ static void delete_in_dir(struct file_li
-
- dirlist = get_dirlist(fbuf, dlen, 0);
-
-+ p = fbuf + dlen;
-+ if (dlen != 1 || *fbuf != '/')
-+ *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--; ) {
-@@ -471,16 +607,23 @@ static void delete_in_dir(struct file_li
- f_name(fp, NULL));
- continue;
- }
-+ if (detect_renamed && S_ISREG(fp->mode)) {
-+ strlcpy(p, fp->basename, remainder);
-+ look_for_rename(fp, fbuf, dirlist->file_pool);
-+ }
- if (flist_find(flist, fp) < 0) {
- f_name(fp, delbuf);
-- 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);
-+ } else if (detect_renamed && S_ISDIR(fp->mode))
-+ unexplored_dirs++;
- }
-
-+ fbuf[dlen] = '\0';
-+
- flist_free(dirlist);
- }
-
-@@ -510,9 +653,9 @@ static void do_delete_pass(struct file_l
- || !S_ISDIR(st.st_mode))
- continue;
-
-- delete_in_dir(flist, fbuf, file, &st);
-+ delete_in_dir(flist, fbuf, file, &st, 0);
- }
-- delete_in_dir(NULL, NULL, NULL, NULL);
-+ delete_in_dir(NULL, NULL, NULL, NULL, 0);
-
- if (do_progress && !am_server)
- rprintf(FINFO, " \r");
-@@ -1048,6 +1191,7 @@ static int try_dests_non(struct file_str
- return j;
}
+static struct bitbag *delayed_bits = NULL;
static int phase = 0;
+ static int dflt_perms;
- /* Acts on the_file_list->file's ndx'th item, whose name is fname. If a dir,
-@@ -1233,8 +1377,12 @@ 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)) {
-+ if (detect_renamed && real_ret != 0)
-+ unexplored_dirs++;
-+ delete_in_dir(the_file_list, fname, file, &real_st,
-+ delete_during < 0 ? DEL_NO_DELETIONS : 0);
-+ }
- return;
- }
-
-@@ -1498,8 +1646,14 @@ static void recv_generator(char *fname,
- if (preserve_hard_links && F_NOT_HLINK_LAST(file))
- return;
+@@ -1321,9 +1462,12 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
+ }
+ else if (delete_during && f_out != -1 && !phase
+ && !(file->flags & FLAG_MISSING_DIR)) {
+- if (file->flags & FLAG_CONTENT_DIR)
+- delete_in_dir(fname, file, &real_sx.st.st_dev);
+- else
++ if (file->flags & FLAG_CONTENT_DIR) {
++ if (detect_renamed && real_ret != 0)
++ unexplored_dirs++;
++ delete_in_dir(fname, file, &real_sx.st.st_dev,
++ delete_during < 0 ? DEL_NO_DELETIONS : 0);
++ } else
+ change_local_filter_dir(fname, strlen(fname), F_DEPTH(file));
+ }
+ goto cleanup;
+@@ -1605,8 +1749,14 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
+ goto cleanup;
+ }
#endif
- if (stat_errno == ENOENT)
+ if (stat_errno == ENOENT) {
+ if (detect_renamed && unexplored_dirs > 0
-+ && file->length) {
++ && F_LENGTH(file)) {
+ bitbag_set_bit(delayed_bits, ndx);
+ return;
+ }
goto notify_others;
+ }
- rsyserr(FERROR, stat_errno, "recv_generator: failed to stat %s",
+ rsyserr(FERROR_XFER, stat_errno, "recv_generator: failed to stat %s",
full_fname(fname));
- return;
-@@ -1691,6 +1845,12 @@ void generate_files(int f_out, struct fi
- (long)getpid(), flist->count);
- }
+ goto cleanup;
+@@ -1998,6 +2148,12 @@ void generate_files(int f_out, const char *local_name)
+ if (DEBUG_GTE(GENR, 1))
+ rprintf(FINFO, "generator starting pid=%ld\n", (long)getpid());
+ if (detect_renamed) {
-+ delayed_bits = bitbag_create(flist->count);
++ delayed_bits = bitbag_create(cur_flist->used);
+ if (!delete_before && !delete_during)
+ delete_during = -1;
+ }
+
- if (delete_before && !local_name && flist->count > 0)
- do_delete_pass(flist);
+ if (delete_before && !solo_file && cur_flist->used > 0)
+ do_delete_pass();
if (delete_during == 2) {
-@@ -1701,7 +1861,7 @@ void generate_files(int f_out, struct fi
+@@ -2008,7 +2164,7 @@ void generate_files(int f_out, const char *local_name)
}
- do_progress = 0;
+ info_levels[INFO_FLIST] = info_levels[INFO_PROGRESS] = 0;
-- if (append_mode || whole_file < 0)
-+ if (append_mode || detect_renamed || whole_file < 0)
+- if (append_mode > 0 || whole_file < 0)
++ if (append_mode > 0 || detect_renamed || whole_file < 0)
whole_file = 0;
- if (verbose >= 2) {
+ if (DEBUG_GTE(FLIST, 1)) {
rprintf(FINFO, "delta-transmission %s\n",
-@@ -1757,7 +1917,23 @@ void generate_files(int f_out, struct fi
- }
- recv_generator(NULL, NULL, 0, 0, code, -1);
+@@ -2050,7 +2206,7 @@ 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(fbuf, fp, &dirdev);
++ delete_in_dir(fbuf, fp, &dirdev, 0);
+ } else
+ change_local_filter_dir(fbuf, strlen(fbuf), F_DEPTH(fp));
+ }
+@@ -2097,7 +2253,21 @@ void generate_files(int f_out, const char *local_name)
+ } while ((cur_flist = cur_flist->next) != NULL);
+
if (delete_during)
-- 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);
+ if (detect_renamed) {
+ if (delete_during < 0)
+ delete_during = 0;
+ detect_renamed = 0;
+
+ for (i = -1; (i = bitbag_next_bit(delayed_bits, i)) >= 0; ) {
-+ struct file_struct *file = flist->files[i];
++ struct file_struct *file = cur_flist->files[i];
+ if (local_name)
+ strlcpy(fbuf, local_name, sizeof fbuf);
+ else
+ f_name(file, fbuf);
-+ recv_generator(fbuf, file, i, itemizing,
-+ maybe_ATTRS_REPORT, code, f_out);
++ recv_generator(fbuf, file, i, itemizing, code, f_out);
+ }
+ }
-
phase++;
- csum_length = SUM_LENGTH;
---- old/options.c
-+++ new/options.c
-@@ -78,6 +78,7 @@ int am_generator = 0;
+ if (DEBUG_GTE(GENR, 1))
+ rprintf(FINFO, "generate_files phase=%d\n", phase);
+diff --git a/options.c b/options.c
+--- a/options.c
++++ b/options.c
+@@ -80,6 +80,7 @@ int am_server = 0;
+ int am_sender = 0;
int am_starting_up = 1;
int relative_paths = -1;
- int implied_dirs = 1;
+int detect_renamed = 0;
+ int implied_dirs = 1;
+ int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
int numeric_ids = 0;
- int allow_8bit_chars = 0;
- int force_delete = 0;
-@@ -343,6 +344,7 @@ void usage(enum logcode F)
+@@ -742,6 +743,7 @@ void usage(enum logcode F)
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");
-@@ -497,6 +499,7 @@ static struct poptOption long_options[]
+@@ -937,6 +939,7 @@ static struct poptOption long_options[] = {
{"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
+ {"fuzzy", 'y', POPT_ARG_VAL, &fuzzy_basis, 1, 0, 0 },
+ {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
+ {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
+@@ -2122,7 +2125,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
inplace = 1;
}
partial_dir = tmp_partialdir;
if (inplace) {
-@@ -1370,6 +1373,7 @@ int parse_arguments(int *argc, const cha
+@@ -2131,6 +2134,7 @@ int parse_arguments(int *argc_p, const char ***argv_p)
snprintf(err_buf, sizeof err_buf,
"--%s cannot be used with --%s\n",
append_mode ? "append" : "inplace",
delay_updates ? "delay-updates" : "partial-dir");
return 0;
}
-@@ -1680,6 +1684,8 @@ void server_options(char **args,int *arg
+@@ -2493,6 +2497,8 @@ void server_options(char **args, int *argc_p)
args[ac++] = "--super";
if (size_only)
args[ac++] = "--size-only";
+ if (detect_renamed)
+ args[ac++] = "--detect-renamed";
- }
+ if (do_stats)
+ args[ac++] = "--stats";
+ } else {
+diff --git a/rsync.h b/rsync.h
+--- a/rsync.h
++++ b/rsync.h
+@@ -242,7 +242,7 @@ enum msgcode {
+ #define NDX_DEL_STATS -2
+ #define NDX_FLIST_OFFSET -101
- if (modify_window_set) {
---- old/rsync.yo
-+++ new/rsync.yo
-@@ -364,6 +364,7 @@ to the detailed description below for a
+-/* For calling delete_item() and delete_dir_contents(). */
++/* For calling delete_item(), delete_dir_contents(), and delete_in_dir(). */
+ #define DEL_NO_UID_WRITE (1<<0) /* file/dir has our uid w/o write perm */
+ #define DEL_RECURSE (1<<1) /* if dir, delete all contents */
+ #define DEL_DIR_IS_EMPTY (1<<2) /* internal delete_FUNCTIONS use only */
+@@ -252,6 +252,7 @@ enum msgcode {
+ #define DEL_FOR_DEVICE (1<<6) /* making room for a replacement device */
+ #define DEL_FOR_SPECIAL (1<<7) /* making room for a replacement special */
+ #define DEL_FOR_BACKUP (1<<8) /* the delete is for a backup operation */
++#define DEL_NO_DELETIONS (1<<9) /* just check for renames w/o deleting */
+
+ #define DEL_MAKE_ROOM (DEL_FOR_FILE|DEL_FOR_DIR|DEL_FOR_SYMLINK|DEL_FOR_DEVICE|DEL_FOR_SPECIAL)
+
+diff --git a/rsync.yo b/rsync.yo
+--- a/rsync.yo
++++ b/rsync.yo
+@@ -397,6 +397,7 @@ 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
--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
-@@ -1272,6 +1273,15 @@ Note that the use of the bf(--delete) op
+@@ -1624,6 +1625,21 @@ Note that the use of the bf(--delete) option might get rid of any potential
fuzzy-match files, so either use bf(--delete-after) or specify some
filename exclusions if you need to prevent this.
-+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
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
---- old/util.c
-+++ new/util.c
-@@ -1027,6 +1027,32 @@ int handle_partial_dir(const char *fname
- return 1;
+diff --git a/util.c b/util.c
+--- a/util.c
++++ b/util.c
+@@ -1112,6 +1112,32 @@ char *normalize_path(char *path, BOOL force_newbuf, unsigned int *len_ptr)
+ return path;
}
+/* We need to supply our own strcmp function for file list comparisons
+}
+
/**
- * Determine if a symlink points outside the current directory tree.
- * This is considered "unsafe" because e.g. when mirroring somebody
+ * Return a quoted string with the full pathname of the indicated filename.
+ * The string " (in MODNAME)" may also be appended. The returned pointer