Add git version.

git version is now printed in prox.log file.
- git_version.c is always recompiled
- If source have been locally changed, the build is shown as dirty
- If git is not available on the build system, a message such as
'make: git: Command not found'
will be printed, but the build will succeed.

Change-Id: If551832c6079f5e3bd04cd4d8ac5f8204e6be8cd
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>

diff --git a/VNFs/DPPD-PROX/Makefile b/VNFs/DPPD-PROX/Makefile
index ff75c17..60cea67 100644 (file)
--- a/VNFs/DPPD-PROX/Makefile
+++ b/VNFs/DPPD-PROX/Makefile
@@ -214,12 +214,15 @@ SRCS-y += stats_latency.c stats_global.c stats_core.c stats_task.c stats_prio.c
 SRCS-y += cmd_parser.c input.c prox_shared.c prox_lua_types.c
 SRCS-y += genl4_bundle.c heap.c genl4_stream_tcp.c genl4_stream_udp.c cdf.c
 SRCS-y += stats.c stats_cons_log.c stats_cons_cli.c stats_parser.c hash_set.c prox_lua.c prox_malloc.c prox_ipv6.c prox_compat.c
+SRCS-y += git_version.c
+
+GIT_VERSION := "$(shell git describe --abbrev=8 --dirty --always)"
 
 ifeq ($(FIRST_PROX_MAKE),)
 MAKEFLAGS += --no-print-directory
 FIRST_PROX_MAKE = 1
 export FIRST_PROX_MAKE
-all:   libedit_autoconf.h
+all:   libedit_autoconf.h git_version.c
        @./helper-scripts/trailing.sh
        @$(MAKE) $@
 clean:
@@ -246,6 +249,12 @@ libedit_autoconf.h: $(AUTO-CONFIG-SCRIPT)
                > /dev/null
 # auto-conf adds empty line at the end of the file, considered as error by trailing.sh script
        $(Q) sed -i '$$ d' '$@'
+
+git_version.c: force
+       @echo 'const char *git_version=$(GIT_VERSION);' | cmp -s - $@ || echo 'const char *git_version=$(GIT_VERSION);' > $@
+       @echo $@
+force:
+       
 else
 include $(RTE_SDK)/mk/rte.extapp.mk
 endif

diff --git a/VNFs/DPPD-PROX/main.c b/VNFs/DPPD-PROX/main.c
index aeee288..5d01845 100644 (file)
--- a/VNFs/DPPD-PROX/main.c
+++ b/VNFs/DPPD-PROX/main.c
@@ -54,6 +54,7 @@
 #endif
 
 uint8_t lb_nb_txrings = 0xff;
+extern const char *git_version;
 struct rte_ring *ctrl_rings[RTE_MAX_LCORE*MAX_TASKS_PER_CORE];
 
 static void __attribute__((noreturn)) prox_usage(const char *prgname)
@@ -1218,6 +1219,7 @@ int main(int argc, char **argv)
        plog_init(prox_cfg.log_name, prox_cfg.log_name_pid);
        plog_info("=== " PROGRAM_NAME " %s ===\n", VERSION_STR());
        plog_info("\tUsing DPDK %s\n", rte_version() + sizeof(RTE_VER_PREFIX));
+       plog_info("\tgit version %s\n", git_version);
        set_term_env();
        read_rdt_info();