added --existing option, similar to one suggested by Gildas Quiniou <gildas@stip.fr>

[rsync/rsync.git] / options.c

diff --git a/options.c b/options.c
index 623385a..e4924bf 100644 (file)
--- a/options.c
+++ b/options.c
@@ -63,6 +63,7 @@ int copy_unsafe_links=0;
 int block_size=BLOCK_SIZE;
 int size_only=0;
 int delete_after=0;
+int only_existing=0;
 
 char *backup_suffix = BACKUP_SUFFIX;
 char *tmpdir = NULL;
@@ -125,6 +126,7 @@ void usage(int F)
   rprintf(F," -e, --rsh=COMMAND           specify rsh replacement\n");
   rprintf(F,"     --rsync-path=PATH       specify path to rsync on the remote machine\n");
   rprintf(F," -C, --cvs-exclude           auto ignore files in the same way CVS does\n");
+  rprintf(F,"     --existing              only update files that already exist\n");
   rprintf(F,"     --delete                delete files that don't exist on the sending side\n");
   rprintf(F,"     --delete-excluded       also delete excluded files on the receiving side\n");
   rprintf(F,"     --delete-after          delete after transferring, not before\n");
@@ -165,7 +167,7 @@ enum {OPT_VERSION, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
       OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
       OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
       OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
-      OPT_DELETE_AFTER};
+      OPT_DELETE_AFTER, OPT_EXISTING};
 
 static char *short_options = "oblLWHpguDCtcahvqrRIxnSe:B:T:zP";
 
@@ -173,6 +175,7 @@ static struct option long_options[] = {
   {"version",     0,     0,    OPT_VERSION},
   {"server",      0,     0,    OPT_SERVER},
   {"sender",      0,     0,    OPT_SENDER},
+  {"existing",    0,     0,    OPT_EXISTING},
   {"delete",      0,     0,    OPT_DELETE},
   {"delete-excluded", 0, 0,    OPT_DELETE_EXCLUDED},
   {"force",       0,     0,    OPT_FORCE},
@@ -320,6 +323,10 @@ int parse_arguments(int argc, char *argv[], int frommain)
                        delete_mode = 1;
                        break;
 
+               case OPT_EXISTING:
+                       only_existing = 1;
+                       break;
+
                case OPT_DELETE_AFTER:
                        delete_after = 1;
                        break;
@@ -652,6 +659,9 @@ void server_options(char **args,int *argc)
        if (numeric_ids)
                args[ac++] = "--numeric-ids";
 
+       if (only_existing)
+               args[ac++] = "--existing";
+
        if (tmpdir) {
                args[ac++] = "--temp-dir";
                args[ac++] = tmpdir;