--- /n/sources/plan9/sys/src/cmd/replica/applylog.c	Sat May 21 11:00:08 2011
+++ /sys/src/cmd/replica/applylog.c	Tue Jun 23 00:00:00 2026
@@ -21,6 +21,8 @@
 int verbose;
 char **match;
 int nmatch;
+char **xmatch;
+int nxmatch;
 int tempspool = 1;
 int safeinstall = 1;
 char *lroot;
@@ -145,7 +147,7 @@
 void
 usage(void)
 {
-	fprint(2, "usage: replica/applylog [-cnSstuv] [-T timefile] clientdb clientroot serverroot [path ...]\n");
+	fprint(2, "usage: replica/applylog [-cnSstuv] [-T timefile] [-x path] clientdb clientroot serverroot [path ...]\n");
 	exits("usage");
 }
 
@@ -216,6 +218,11 @@
 	case 'v':
 		verbose++;
 		break;
+	case 'x':
+		if(nxmatch%16 == 0)
+			xmatch = erealloc(xmatch, (nxmatch+16)*sizeof xmatch[0]);
+		xmatch[nxmatch++] = EARGF(usage());
+		break;
 	default:
 		usage();
 	}ARGEND
@@ -238,6 +245,9 @@
 	for(i=0; i<nmatch; i++)
 		if(match[i][0] == '/')
 			match[i]++;
+	for(i=0; i<nxmatch; i++)
+		if(xmatch[i][0] == '/')
+			xmatch[i]++;
 
 	if((clientdb = opendb(argv[0])) == nil)
 		sysfatal("opendb %q: %r", argv[2]);
@@ -771,6 +781,11 @@
 {
 	int i, len;
 
+	for(i=0; i<nxmatch; i++){
+		len = strlen(xmatch[i]);
+		if(len && strncmp(s, xmatch[i], len) == 0 && (s[len]=='/' || s[len] == 0))
+			return 0;
+	}
 	if(nmatch == 0)
 		return 1;
 	for(i=0; i<nmatch; i++){
--- /n/sources/plan9/sys/man/8/replica	Sun Jan 29 06:00:04 2006
+++ /sys/man/8/replica	Tue Jun 23 00:00:00 2026
@@ -44,6 +44,10 @@
 .B -s
 .I name
 ]...
+[
+.B -x
+.I path
+] ...
 .I clientdb
 .I clientroot
 .I serverroot
@@ -235,6 +239,10 @@
 .I applylog
 to overwrite the local changes.
 (The conflict is resolved in favor of the server.)
+The
+.B -x
+option (which may be specified multiple times) excludes the named path
+and all its children from the update.
 .PP
 .I Applychanges
 is, in some sense, the opposite of