A patch from Stefan Müller.

diff --git a/downdate.diff b/downdate.diff
new file mode 100644 (file)
index 0000000..6a9698e
--- /dev/null
+++ b/downdate.diff
@@ -0,0 +1,62 @@
+A patch from Stefan Müller to add the --downdate option, which works
+in the opposite manner as --update.
+
+--- old/generator.c
++++ new/generator.c
+@@ -53,6 +53,7 @@ extern int ignore_errors;
+ extern int remove_sent_files;
+ extern int delay_updates;
+ extern int update_only;
++extern int downdate_only;
+ extern int ignore_existing;
+ extern int ignore_non_existing;
+ extern int inplace;
+@@ -1133,6 +1134,13 @@ static void recv_generator(char *fname, 
+               return;
+       }
+ 
++      if (downdate_only && statret == 0
++          && cmp_time(st.st_mtime, file->modtime) < 0) {
++              if (verbose > 1)
++                      rprintf(FINFO, "%s is older\n", fname);
++              return;
++      }
++
+       fnamecmp = fname;
+       fnamecmp_type = FNAMECMP_FNAME;
+ 
+@@ -1430,7 +1438,7 @@ void generate_files(int f_out, struct fi
+       phase++;
+       csum_length = SUM_LENGTH;
+       max_size = min_size = ignore_existing = ignore_non_existing = 0;
+-      update_only = always_checksum = size_only = 0;
++      downdate_only = update_only = always_checksum = size_only = 0;
+       ignore_times = 1;
+       if (append_mode)  /* resend w/o append mode */
+               append_mode = -1; /* ... but only longer files */
+--- old/options.c
++++ new/options.c
+@@ -56,6 +56,7 @@ int preserve_gid = 0;
+ int preserve_times = 0;
+ int omit_dir_times = 0;
+ int update_only = 0;
++int downdate_only = 0;
+ int cvs_exclude = 0;
+ int dry_run = 0;
+ int do_xfers = 1;
+@@ -291,6 +292,7 @@ void usage(enum logcode F)
+   rprintf(F,"     --backup-dir=DIR        make backups into hierarchy based in DIR\n");
+   rprintf(F,"     --suffix=SUFFIX         set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
+   rprintf(F," -u, --update                skip files that are newer on the receiver\n");
++  rprintf(F," -w, --downdate              skip files that are older on the receiver\n");
+   rprintf(F,"     --inplace               update destination files in-place (SEE MAN PAGE)\n");
+   rprintf(F,"     --append                append data onto shorter files\n");
+   rprintf(F," -d, --dirs                  transfer directories without recursing\n");
+@@ -461,6 +463,7 @@ static struct poptOption long_options[] 
+   {"size-only",        0,  POPT_ARG_NONE,   &size_only, 0, 0, 0 },
+   {"one-file-system", 'x', POPT_ARG_NONE,   0, 'x', 0, 0 },
+   {"update",          'u', POPT_ARG_NONE,   &update_only, 0, 0, 0 },
++  {"downdate",        'w', POPT_ARG_NONE,   &downdate_only, 0, 0, 0 },
+   {"existing",         0,  POPT_ARG_NONE,   &ignore_non_existing, 0, 0, 0 },
+   {"ignore-non-existing",0,POPT_ARG_NONE,   &ignore_non_existing, 0, 0, 0 },
+   {"ignore-existing",  0,  POPT_ARG_NONE,   &ignore_existing, 0, 0, 0 },