Improved version number system to show git commit

Author: cschreib

src/CMakeLists.txt

@@ -14,6 +14,21 @@ set(NO_WCSLIB ON)
 
 find_package(vif REQUIRED)
 
+# Figure out git hash, if any
+execute_process(
+  COMMAND git log -1 --format=%h
+  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+  OUTPUT_VARIABLE GIT_COMMIT_HASH
+  RESULT_VARIABLE GIT_COMMAND_SUCCESS
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+
+if (GIT_COMMAND_SUCCESS EQUAL 0)
+    add_definitions(-DFASTPP_GIT_HASH="${GIT_COMMIT_HASH}")
+else()
+    add_definitions(-DFASTPP_GIT_HASH="")
+endif()
+
 # Setup share directory
 add_definitions(-DFASTPP_SHARE_DIR="${FASTPP_SHARE_DIR}")
 

src/fast++-read_input.cpp

@@ -239,7 +239,11 @@ bool read_params(options_t& opts, input_state_t& state, const std::string& filen
     }
 
     if (opts.verbose) {
-        note("this is FAST++ version '", fastpp_version, "'");
+        if (std::string(fastpp_git_hash).empty()) {
+            note("this is FAST++ version '", fastpp_version, "'");
+        } else {
+            note("this is FAST++ version '", fastpp_version, "-", fastpp_git_hash, "')");
+        }
     }
 
     // Create output directory, if it doesn't exist

src/fast++.cpp

@@ -1,7 +1,12 @@
 #include "fast++.hpp"
 #include <vif/core/main.hpp>
 
-const char* fastpp_version = "1.3-git";
+#ifndef FASTPP_GIT_HASH
+#define FASTPP_GIT_HASH ""
+#endif
+
+const char* fastpp_version = "1.2.1";
+const char* fastpp_git_hash = FASTPP_GIT_HASH;
 
 const constexpr uint_t grid_id::z;
 const constexpr uint_t grid_id::av;

src/fast++.hpp

@@ -19,6 +19,7 @@ using namespace vif;
 using namespace vif::astro;
 
 extern const char* fastpp_version;
+extern const char* fastpp_git_hash;
 
 // Program structures
 // ------------------