1 files changed, 66 insertions, 0 deletions
diff --git a/src/release.c b/src/release.c
new file mode 100644
index 0000000..e0bd018
--- /dev/null
+++ b/src/release.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2009-2012, Salvatore Sanfilippo <antirez at gmail dot com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* Every time the Redis Git SHA1 or Dirty status changes only this small
+ * file is recompiled, as we access this information in all the other
+ * files using this functions. */
+
+#include <string.h>
+#include <stdio.h>
+
+#include "release.h"
+#include "version.h"
+#include "crc64.h"
+
+char *redisGitSHA1(void) {
+    return REDIS_GIT_SHA1;
+}
+
+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));
+}
+
+/* Return a cached value of the build string in order to avoid recomputing
+ * and converting it in hex every time: this string is shown in the INFO
+ * output that should be fast. */
+char *redisBuildIdString(void) {
+    static char buf[32];
+    static int cached = 0;
+    if (!cached) {
+        snprintf(buf,sizeof(buf),"%llx",(unsigned long long) redisBuildId());
+        cached = 1;
+    }
+    return buf;
+}