Introduced the Build ID in INFO and --version output.

The idea is to be able to identify a build in a unique way, so for
instance after a bug report we can recognize that the build is the one
of a popular Linux distribution and perform the debugging in the same
environment.

src/Makefile

@@ -101,7 +101,7 @@ REDIS_SERVER_NAME= redis-server
 REDIS_SENTINEL_NAME= redis-sentinel
 REDIS_SERVER_OBJ= adlist.o ae.o anet.o dict.o redis.o sds.o zmalloc.o lzf_c.o lzf_d.o pqsort.o zipmap.o sha1.o ziplist.o release.o networking.o util.o object.o db.o replication.o rdb.o t_string.o t_list.o t_set.o t_zset.o t_hash.o config.o aof.o pubsub.o multi.o debug.o sort.o intset.o syncio.o cluster.o crc16.o endianconv.o slowlog.o scripting.o bio.o rio.o rand.o memtest.o crc64.o bitops.o sentinel.o
 REDIS_CLI_NAME= redis-cli
-REDIS_CLI_OBJ= anet.o sds.o adlist.o redis-cli.o zmalloc.o release.o anet.o ae.o
+REDIS_CLI_OBJ= anet.o sds.o adlist.o redis-cli.o zmalloc.o release.o anet.o ae.o crc64.o
 REDIS_BENCHMARK_NAME= redis-benchmark
 REDIS_BENCHMARK_OBJ= ae.o anet.o redis-benchmark.o sds.o adlist.o zmalloc.o redis-benchmark.o
 REDIS_CHECK_DUMP_NAME= redis-check-dump

src/crc64.h

@@ -0,0 +1,8 @@
+#ifndef CRC64_H
+#define CRC64_H
+
+#include <stdint.h>
+
+uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l);
+
+#endif

src/debug.c

@@ -29,6 +29,7 @@
 
 #include "redis.h"
 #include "sha1.h"   /* SHA1 is used for DEBUG DIGEST */
+#include "crc64.h"
 
 #include <arpa/inet.h>
 #include <signal.h>
@@ -667,7 +668,6 @@ void logCurrentClient(void) {
 }
 
 #if defined(HAVE_PROC_MAPS)
-uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l);
 void memtest_non_destructive_invert(void *addr, size_t size);
 void memtest_non_destructive_swap(void *addr, size_t size);
 #define MEMTEST_MAX_REGIONS 128

src/mkreleasehdr.sh

@@ -1,9 +1,11 @@
 #!/bin/sh
 GIT_SHA1=`(git show-ref --head --hash=8 2> /dev/null || echo 00000000) | head -n1`
 GIT_DIRTY=`git diff 2> /dev/null | wc -l`
+BUILD_ID=`uname -n`"-"`date +%s`
 test -f release.h || touch release.h
 (cat release.h | grep SHA1 | grep $GIT_SHA1) && \
 (cat release.h | grep DIRTY | grep $GIT_DIRTY) && exit 0 # Already uptodate
 echo "#define REDIS_GIT_SHA1 \"$GIT_SHA1\"" > release.h
 echo "#define REDIS_GIT_DIRTY \"$GIT_DIRTY\"" >> release.h
+echo "#define REDIS_BUILD_ID \"$BUILD_ID\"" >> release.h
 touch release.c # Force recompile of release.c

src/redis-check-dump.c

@@ -40,6 +40,7 @@
 #include <stdint.h>
 #include <limits.h>
 #include "lzf.h"
+#include "crc64.h"
 
 /* Object types */
 #define REDIS_STRING 0
@@ -140,9 +141,6 @@ static double R_Zero, R_PosInf, R_NegInf, R_Nan;
 /* store string types for output */
 static char types[256][16];
 
-/* Prototypes */
-uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l);
-
 /* Return true if 't' is a valid object type. */
 int checkType(unsigned char t) {
     /* In case a new object type is added, update the following 

src/redis.c

@@ -1929,6 +1929,7 @@ sds genRedisInfoString(char *section) {
             "redis_version:%s\r\n"
             "redis_git_sha1:%s\r\n"
             "redis_git_dirty:%d\r\n"
+            "redis_build_id:%llx\r\n"
             "redis_mode:%s\r\n"
             "os:%s %s %s\r\n"
             "arch_bits:%d\r\n"
@@ -1943,6 +1944,7 @@ sds genRedisInfoString(char *section) {
             REDIS_VERSION,
             redisGitSHA1(),
             strtol(redisGitDirty(),NULL,10) > 0,
+            redisBuildId(),
             mode,
             name.sysname, name.release, name.machine,
             server.arch_bits,
@@ -2489,12 +2491,13 @@ void daemonize(void) {
 }
 
 void version() {
-    printf("Redis server v=%s sha=%s:%d malloc=%s bits=%d\n",
+    printf("Redis server v=%s sha=%s:%d malloc=%s bits=%d build=%llx\n",
         REDIS_VERSION,
         redisGitSHA1(),
         atoi(redisGitDirty()) > 0,
         ZMALLOC_LIB,
-        sizeof(long) == 4 ? 32 : 64);
+        sizeof(long) == 4 ? 32 : 64,
+        redisBuildId());
     exit(0);
 }
 

src/redis.h

@@ -1192,6 +1192,7 @@ void scriptingInit(void);
 /* Git SHA1 */
 char *redisGitSHA1(void);
 char *redisGitDirty(void);
+uint64_t redisBuildId(void);
 
 /* Commands prototypes */
 void authCommand(redisClient *c);

src/release.c

@@ -31,7 +31,11 @@
  * small file is recompiled, as we access this information in all the other
  * files using this functions. */
 
+#include <string.h>
+
 #include "release.h"
+#include "version.h"
+#include "crc64.h"
 
 char *redisGitSHA1(void) {
     return REDIS_GIT_SHA1;
@@ -40,3 +44,9 @@ char *redisGitSHA1(void) {
 char *redisGitDirty(void) {
     return REDIS_GIT_DIRTY;
 }
+
+uint64_t redisBuildId(void) {
+    char *buildid = REDIS_VERSION REDIS_BUILD_ID REDIS_GIT_DIRTY REDIS_GIT_SHA1;
+
+    return crc64(0,(unsigned char*)buildid,strlen(buildid));
+}

src/rio.c

@@ -50,8 +50,7 @@
 #include <stdio.h>
 #include "rio.h"
 #include "util.h"
-
-uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l);
+#include "crc64.h"
 
 /* Returns 1 or 0 for success/failure. */
 static size_t rioBufferWrite(rio *r, const void *buf, size_t len) {