Remove build timestamp information for reproducible builds.

CMakeLists.txt

@@ -13,15 +13,7 @@ cmake_minimum_required(VERSION 2.8)
 
 set (VERSION 1.4.90)
 
-if (WIN32)
-	execute_process(COMMAND cmd /c echo %DATE% %TIME% OUTPUT_VARIABLE TIMESTAMP
-			OUTPUT_STRIP_TRAILING_WHITESPACE)
-else (WIN32)
-	execute_process(COMMAND date "+%F %T%z" OUTPUT_VARIABLE TIMESTAMP
-			OUTPUT_STRIP_TRAILING_WHITESPACE)
-endif (WIN32)
-
-add_definitions (-DCMAKE -DVERSION=\"${VERSION}\" -DTIMESTAMP=\"${TIMESTAMP}\")
+add_definitions (-DCMAKE -DVERSION=\"${VERSION}\")
 
 if (WIN32)
 	set (BINDIR .)

ChangeLog.txt

@@ -42,6 +42,8 @@ Broker:
 - When using the include_dir configuration option sort the files
   alphabetically before loading them.  Closes #17.
 - IPv6 is no longer disabled for websockets listeners.
+- Remove all build timestamp information including $SYS/broker/timestamp.
+  Close #651.
 
 Client library:
 - Outgoing messages with QoS>1 are no longer retried after a timeout period.

config.mk

@@ -108,7 +108,6 @@ SOVERSION=1
 XSLTPROC=xsltproc
 # For html generation
 DB_HTML_XSL=man/html.xsl
-TIMESTAMP:=$(shell date "+%F %T%z")
 
 #MANCOUNTRIES=en_GB
 
@@ -128,7 +127,7 @@ LIB_CFLAGS:=${CFLAGS} ${CPPFLAGS} -I. -I.. -I../lib
 LIB_CXXFLAGS:=$(LIB_CFLAGS) ${CPPFLAGS}
 LIB_LDFLAGS:=${LDFLAGS}
 
-BROKER_CFLAGS:=${LIB_CFLAGS} ${CPPFLAGS} -DVERSION="\"${VERSION}\"" -DTIMESTAMP="\"${TIMESTAMP}\"" -DWITH_BROKER
+BROKER_CFLAGS:=${LIB_CFLAGS} ${CPPFLAGS} -DVERSION="\"${VERSION}\"" -DWITH_BROKER
 CLIENT_CFLAGS:=${CFLAGS} ${CPPFLAGS} -I../lib -DVERSION="\"${VERSION}\""
 
 ifneq ($(or $(findstring $(UNAME),FreeBSD), $(findstring $(UNAME),OpenBSD)),)

man/mosquitto.8.xml

@@ -343,18 +343,6 @@
 					<para>The total number of subscriptions active on the broker.</para>
 				</listitem>
 			</varlistentry>
-			<varlistentry>
-				<term><option>$SYS/broker/timestamp</option></term>
-				<listitem>
-					<para>The timestamp at which this particular build of the broker was made. Static.</para>
-				</listitem>
-			</varlistentry>
-			<varlistentry>
-				<term><option>$SYS/broker/uptime</option></term>
-				<listitem>
-					<para>The amount of time in seconds the broker has been online.</para>
-				</listitem>
-			</varlistentry>
 			<varlistentry>
 				<term><option>$SYS/broker/version</option></term>
 				<listitem>

src/conf.c

@@ -331,7 +331,7 @@ void config__cleanup(struct mosquitto__config *config)
 
 static void print_usage(void)
 {
-	printf("mosquitto version %s (build date %s)\n\n", VERSION, TIMESTAMP);
+	printf("mosquitto version %s\n\n", VERSION);
 	printf("mosquitto is an MQTT v3.1.1 broker.\n\n");
 	printf("Usage: mosquitto [-c config_file] [-d] [-h] [-p port]\n\n");
 	printf(" -c : specify the broker config file.\n");

src/mosquitto.c

@@ -268,7 +268,7 @@ int main(int argc, char *argv[])
 		rc = 1;
 		return rc;
 	}
-	log__printf(NULL, MOSQ_LOG_INFO, "mosquitto version %s (build date %s) starting", VERSION, TIMESTAMP);
+	log__printf(NULL, MOSQ_LOG_INFO, "mosquitto version %s starting", VERSION);
 	if(config.config_file){
 		log__printf(NULL, MOSQ_LOG_INFO, "Config loaded from %s.", config.config_file);
 	}else{

src/sys_tree.c

@@ -53,8 +53,6 @@ void sys_tree__init(struct mosquitto_db *db)
 	/* Set static $SYS messages */
 	snprintf(buf, 64, "mosquitto version %s", VERSION);
 	db__messages_easy_queue(db, NULL, "$SYS/broker/version", SYS_TREE_QOS, strlen(buf), buf, 1);
-	snprintf(buf, 64, "%s", TIMESTAMP);
-	db__messages_easy_queue(db, NULL, "$SYS/broker/timestamp", SYS_TREE_QOS, strlen(buf), buf, 1);
 }
 
 static void sys_tree__update_clients(struct mosquitto_db *db, char *buf)