add packet tracing debug code

diff --git a/cache.h b/cache.h
index 3978112f55e258bf67fef16dcbed2dd49feb4552..2e59aae179ec4b19b9773bcafc5eb021568c0f00 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -1074,6 +1074,8 @@ extern void trace_repo_setup(const char *prefix);
 extern int trace_want(const char *key);
 extern void trace_strbuf(const char *key, const struct strbuf *buf);
 
+void packet_trace_identity(const char *prog);
+
 /* convert.c */
 /* returns 1 if *dst was used */
 extern int convert_to_git(const char *path, const char *src, size_t len,