add explicit binary mode data path support

The next cathook-gui update will automatically set some systems (mainly ubuntu 18.04 and not officially supported distros) to binary mode. The old method would have preferred the out of date /opt/cathook/data directory.

enable binary mode

.gitlab-ci.yml

@@ -10,7 +10,7 @@ stages:
 pages:
   script:
     # Build cathook
-    - mkdir build_cathook && pushd build_cathook && cmake .. && make && popd
+    - mkdir build_cathook && pushd build_cathook && cmake -DInternal_Binarymode=true .. && make && popd
     # Create the "package" containing everything needed
     - mkdir package && mv ./bin/libcathook.so ./package/libcathook.so && mv ./data ./package/data && mv ./config_data ./package/config_data && mv ./scripts/binarypackage/install ./package/install && mv ./scripts/binarypackage/attach ./package/attach
     # Build a static gdb

CMakeLists.txt

@@ -32,6 +32,10 @@ if (EnableCotire)
     set(ignore_files ${ignore_files} CACHE INTERNAL "")
 endif()
 
+#
+# Config stuff
+#
+
 if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build type")
 endif()
@@ -90,11 +94,23 @@ set(EnableNullNexus 1 CACHE BOOL "Enable NullNexus chat and other features")
 set(EnableLogging 1 CACHE BOOL "Enable logging to /tmp/")
 set(EnableClip 1 CACHE BOOL "Enable anti electron/chromium freezing")
 set(Unity_ZeroKernel 1 CACHE BOOL "Use a unity build for zerokernel files")
-
 if(NOT EnableVisuals)
     set(EnableGUI 0)
 endif()
 
+# Internal variables
+# INTERNAL implies "FORCE" by default, so don't set if already set
+if (NOT DEFINED Internal_Binarymode)
+    set(Internal_Binarymode 0 CACHE INTERNAL "Build cathook to be used in 'binary mode'")
+endif()
+if (NOT DEFINED Internal_Symbolized)
+    set(Internal_Symbolized 0 CACHE INTERNAL "Build cathook with symbols so crashes can be sent")
+endif()
+
+#
+# End of config stuff
+#
+
 if (EnableVisuals)
     set(OpenGL_GL_PREFERENCE "LEGACY")
     if (EnableImGuiDrawing)
@@ -167,7 +183,7 @@ configure_file(include/version.h.in ${CMAKE_SOURCE_DIR}/include/version.h @ONLY)
 
 set(CMAKE_CXX_FLAGS "-m32 -march=native -fexceptions -fno-gnu-unique -DNDEBUG")
 set(CMAKE_CXX_FLAGS_DEBUG "-rdynamic -ggdb -Og")
-if (symbolize)
+if (Internal_Symbolized)
     set(CMAKE_CXX_FLAGS_RELEASE "-O3 -ggdb -fvisibility=hidden -fvisibility-inlines-hidden")
 else()
     set(CMAKE_CXX_FLAGS_RELEASE "-O3 -s -fvisibility=hidden -fvisibility-inlines-hidden")
@@ -231,12 +247,12 @@ elseif(EnablePrecompiledHeaders AND NativePrecompiledHeaders)
     target_precompile_headers(cathook PRIVATE "${CMAKE_SOURCE_DIR}/include/common.hpp")
 endif()
 
-if (NOT symbolize)
+if (NOT Internal_Symbolized)
     add_custom_command(TARGET cathook POST_BUILD
         COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:cathook> "${CMAKE_SOURCE_DIR}/bin/$<TARGET_FILE_NAME:cathook>")
 else()
     message("Symbolized build")
-    unset(symbolize CACHE)
+    set(Internal_Symbolized 0 CACHE INTERNAL "Build cathook with symbols so crashes can be sent" FORCE)
 endif()
 if (EnableCotire)
     add_custom_command(TARGET cathook_unity POST_BUILD

include/config.h.in

@@ -11,6 +11,7 @@
 #define ENABLE_VAC_BYPASS @VACBypass@
 #define ENABLE_TEXTMODE_STDIN @EnableTextmodeStdin@
 #define ENABLE_TEXTMODE @Textmode@
+#define ENABLE_BINARYMODE @Internal_Binarymode@
 #define ENABLE_PROFILER @EnableProfiler@
 #define ENABLE_NULLNEXUS @EnableNullNexus@
 #define ENABLE_LOGGING @EnableLogging@

report-crash

@@ -80,7 +80,7 @@ if [ $SYMBOLS == false ]; then
     proccount=$(grep -c '^processor' /proc/cpuinfo)
     \cp ./build/CMakeCache.txt ./scripts/CMakeCacheBackup.txt
     pushd build
-    cmake -Dsymbolize=true .. && cmake --build . --target cathook -- -j$proccount
+    cmake -DInternal_Symbolized=true .. && cmake --build . --target cathook -- -j$proccount
     popd
 fi
 

src/pathio.cpp

@@ -19,27 +19,25 @@ std::string getDataPath(std::string subpath)
 {
     if (!cached_data_path)
     {
-        DIR *dir;
         if (std::getenv("CH_DATA_PATH"))
         {
             cached_data_path = std::getenv("CH_DATA_PATH");
         }
-        else if ((dir = opendir(DATA_PATH)))
-        {
-            cached_data_path = DATA_PATH;
-            closedir(dir);
-        }
         else
         {
+#if ENABLE_BINARYMODE
             std::string xdg_data_dir;
             if (std::getenv("XDG_DATA_HOME"))
                 xdg_data_dir = std::getenv("XDG_DATA_HOME");
             else if (std::getenv("HOME"))
                 xdg_data_dir = std::string(std::getenv("HOME")) + "/.local/share";
+            if (xdg_data_dir.empty())
+                cached_data_path = DATA_PATH;
             else
-                xdg_data_dir = DATA_PATH;
                 cached_data_path = xdg_data_dir + "/cathook/data";
-            logging::Info("Data path: %s", cached_data_path->c_str());
+#else
+            cached_data_path = DATA_PATH;
+#endif
         }
     }
     return *cached_data_path + subpath;