report build in mod menu

.gitignore

@@ -3,3 +3,4 @@ build/
 #*
 *~
 
+src/spn_version.h

cmake/version.cmake

@@ -0,0 +1,19 @@
+find_package(Git)
+
+if(GIT_EXECUTABLE)
+  get_filename_component(WORKING_DIR ${SRC} DIRECTORY)
+  execute_process(
+    COMMAND ${GIT_EXECUTABLE} describe --tags --dirty
+    WORKING_DIRECTORY ${WORKING_DIR}
+    OUTPUT_VARIABLE REPO_VERSION
+    RESULT_VARIABLE ERROR_CODE
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+endif()
+
+if(REPO_VERSION STREQUAL "")
+  set(REPO_VERSION 0.0.0-unknown)
+  message(WARNING "Failed to determine version from Git tags. Using default version \"${REPO_VERSION}\".")
+endif()
+
+configure_file(${SRC} ${DST} @ONLY)

mod/lib/mod.lua

@@ -50,10 +50,13 @@ end
 local rules_file = "59-soundplane.rules"
 local rules_dst = "/etc/udev/rules.d/" .. rules_file
 
+local spn_udev_rules_ok = false
+
 local spn_udev_rules_installed = function()
   local f = io.open(rules_dst, "r")
   if f ~= nil then
     io.close(f)
+    spn_udev_rules_ok = true
     return true
   end
 
@@ -72,6 +75,8 @@ local spn_install_udev_rules = function()
   print("   >> '" .. cmd_reload .. "'")
   os.execute(cmd_reload)
   print("spn: udev rule installation complete")
+
+  spn_udev_rules_ok = true
 end
 
 local post_startup = function()
@@ -106,12 +111,31 @@ menu.enc = function(n, d)
 end
 
 menu.redraw = function()
+  local start_x = 4
+  local line_y = 10
   screen.clear()
-  screen.move(64,40)
-  screen.text_center("spn")
+  screen.move(start_x, 1 * line_y)
+  screen.text("spn")
+  screen.move(start_x, 2 * line_y)
+  screen.text("build: " .. spn.client.VERSION)
+  screen.move(start_x, 3 * line_y)
+  if spn_udev_rules_ok then
+    screen.text("udev: ok")
+  else
+    screen.text("udev: not installed")
+  end
+
+  if spn.client.is_running() then
+    screen.move(start_x, 4 * line_y)
+    screen.text("client: running")
+    screen.move(start_x, 5 * line_y)
+    screen.text("rate: " .. spn.client.get_property('data_rate'))
+  end
+
   screen.update()
 end
 
+
 menu.init = function() end -- on menu entry, ie, if you wanted to start timers
 menu.deinit = function() end -- on menu exit
 

src/CMakeLists.txt

@@ -11,6 +11,14 @@ include(FindPkgConfig)
 pkg_check_modules(LIBLUA REQUIRED lua-5.3)
 include_directories(${LIBLUA_INCLUDE_DIRS})
 
+#
+# version
+#
+add_custom_target(spn_version
+  ${CMAKE_COMMAND} -D SRC=${CMAKE_CURRENT_SOURCE_DIR}/spn_version.h.in
+                   -D DST=${CMAKE_CURRENT_SOURCE_DIR}/spn_version.h
+                   -P ${CMAKE_SOURCE_DIR}/cmake/version.cmake
+)
 
 #
 # module
@@ -26,6 +34,7 @@ set(SOURCE_FILES
 )
 
 add_library(lua-extension MODULE ${SOURCE_FILES})
+add_dependencies(lua-extension spn_version)
 set_target_properties(lua-extension PROPERTIES
   PREFIX ""     # strip `lib` prefix
   OUTPUT_NAME "${LUA_MODULE_NAME}"

src/spn_module.h

@@ -1,7 +1,7 @@
 #ifndef __LUA_SPN_H__
 #define __LUA_SPN_H__
 
-#define LUA_SPN_VERSION "0.4"
+#include "spn_version.h"
 
 #ifndef LUA_SPN_API
 #define LUA_SPN_API __attribute__((visibility("default")))

src/spn_version.h.in

@@ -0,0 +1,6 @@
+#ifndef __LUA_SPN_VERSION_H__
+#define __LUA_SPN_VERSION_H__
+
+#define LUA_SPN_VERSION "@REPO_VERSION@"
+
+#endif