Report the commit too with ovniver

CHANGELOG.md

@@ -10,7 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - Add `ovni_version_get()` function.
-- Add the `ovniver` program to report the `libovni.so` version.
+- Add the `ovniver` program to report the libovni version and commit.
 
 ## [1.2.2] - 2022-07-26
 

CMakeLists.txt

@@ -22,6 +22,11 @@ set(CMAKE_C_EXTENSIONS FALSE)
 
 option(ENABLE_DEBUG_LOG "Enable debug messages (very verbose)")
 option(ENABLE_ALL_TESTS "Forces the execution of all tests")
+set(OVNI_GIT_COMMIT "unknown" CACHE STRING "Set the git commit")
+
+if("${OVNI_GIT_COMMIT}" STREQUAL "unknown")
+  message(WARNING "OVNI_GIT_COMMIT is unknown, please specify the git commit")
+endif()
 
 if(ENABLE_DEBUG_LOG)
   add_definitions(-DENABLE_DEBUG)

include/ovni.h.in

@@ -37,6 +37,7 @@ typedef struct json_value_t JSON_Value;
 
 /* Follow https://semver.org rules for versioning */
 #define OVNI_LIB_VERSION "@PROJECT_VERSION@"
+#define OVNI_GIT_COMMIT  "@OVNI_GIT_COMMIT@"
 
 /* ----------------------- common ------------------------ */
 
@@ -129,7 +130,7 @@ struct ovni_rproc {
 
 #define ovni_version_check() ovni_version_check_str(OVNI_LIB_VERSION)
 void ovni_version_check_str(const char *version);
-const char *ovni_version_get(void);
+void ovni_version_get(const char **version, const char **commit);
 
 void ovni_proc_init(int app, const char *loom, int pid);
 

src/emu/ovniver.c

@@ -7,8 +7,12 @@
 int
 main(void)
 {
-	printf("libovni version compiled %s, dynamic %s\n",
-			OVNI_LIB_VERSION, ovni_version_get());
+	const char *version, *commit;
+	ovni_version_get(&version, &commit);
+
+	printf("libovni: build v%s (%s), dynamic v%s (%s)\n",
+			OVNI_LIB_VERSION, OVNI_GIT_COMMIT,
+			version, commit);
 
 	return 0;
 }

src/rt/ovni.c

@@ -23,10 +23,11 @@ struct ovni_rproc rproc = {0};
 /* Data per thread */
 _Thread_local struct ovni_rthread rthread = {0};
 
-const char *
-ovni_version_get(void)
+void
+ovni_version_get(const char **version, const char **commit)
 {
-	return OVNI_LIB_VERSION;
+	*version = OVNI_LIB_VERSION;
+	*commit = OVNI_GIT_COMMIT;
 }
 
 void ovni_version_check_str(const char *version)