feat: build appimage on linux

BallanceMMOServer/CMakeLists.txt

@@ -12,7 +12,7 @@ set(BMMO_LIB_DIR ${PROJECT_BINARY_DIR}/lib)
 set(BMMO_RUNTIME_DIR ${PROJECT_BINARY_DIR})
 
 # sets RPATH for *install*ed files
-set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_RPATH}:\$ORIGIN:lib") # Note CMake escaping around '$' sign.
+set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_RPATH}:\$ORIGIN:lib:../lib") # Note CMake escaping around '$' sign.
 # *built* files will also use RPATH which has been set before
 set(CMAKE_BUILD_WITH_INSTALL_RPATH on)
 # if (CMAKE_SYSTEM_NAME MATCHES "Windows")
@@ -107,4 +107,13 @@ if (CMAKE_SYSTEM_NAME MATCHES "Windows")
     # configure_file(${CMAKE_CURRENT_SOURCE_DIR}/postbuild.bat ${CMAKE_CURRENT_BINARY_DIR}/postbuild.bat COPYONLY)
 else()
     configure_file(${CMAKE_CURRENT_SOURCE_DIR}/start_ballancemmo_loop.sh ${BMMO_RUNTIME_DIR}/start_ballancemmo_loop.sh COPYONLY)
+    install(TARGETS BallanceMMOServer BallanceMMOMockClient BallanceMMORecordParser DESTINATION bin)
+    install(TARGETS GameNetworkingSockets yaml-cpp DESTINATION lib)
+endif()
+
+option(BUILD_SERVER_APPIMAGE "Build BallanceMMO Server AppImage" OFF)
+
+if (BUILD_SERVER_APPIMAGE)
+    add_executable(BallanceMMOLaunchSelector appimage/launch_selector.cpp)
+    install(TARGETS BallanceMMOLaunchSelector DESTINATION bin)
 endif()

BallanceMMOServer/appimage/BMMOLaunchSelector.desktop

@@ -0,0 +1,10 @@
+[Desktop Entry]
+Version=1.0
+Type=Application
+Name=BallanceMMOLaunchSelector
+Comment=BMMO Server
+Exec=BallanceMMOLaunchSelector
+Icon=BallanceMMO
+GenericName=Game Server
+Categories=Game
+Terminal=true

BallanceMMOServer/appimage/launch_selector.cpp

@@ -0,0 +1,69 @@
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <string>
+
+const char* const available_binaries[] = { "Server", "MockClient", "RecordParser" };
+const char* target;
+
+bool select_target(char* test_name) {
+    for (const char* name: available_binaries) {
+        if (std::strcmp(test_name, name) != 0) continue;
+        target = name;
+        return true;
+    }
+    return false;
+}
+
+int parse_args(int argc, char** argv) {
+    using namespace std;
+    if (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0) {
+        printf("Usage: %s [OPTION]...\n", argv[0]);
+        puts("Options:");
+        puts("  -h, --help\t\t Display this help and exit.");
+        puts("  -l, --launch [Target]\t Launch the selected target.");
+        puts("Additional options will be forwarded to the target.");
+        printf("Available targets (default: `%s`):\n", available_binaries[0]);
+        for (const char* name: available_binaries)
+            printf("  %s\n", name);
+        puts("Examples:");
+        printf("  To see the server help:\n\t%s --launch Server --help\n", argv[0]);
+        printf("  To launch a mock client with a custom name:\n\t%s -l MockClient -n Name\n", argv[0]);
+        return 0;
+    }
+    else if (strcmp(argv[1], "-l") == 0 || strcmp(argv[1], "--launch") == 0) {
+        if (argc <= 2) {
+            target = available_binaries[0];
+            return argc;
+        }
+        if (select_target(argv[2])) {
+            return 3;
+        }
+        fprintf(stderr, "Error: target `%s` not found.\n", argv[2]);
+        return -1;
+    }
+    return 0;
+}
+
+int main(int argc, char** argv) {
+    std::string cmd = "$APPDIR/usr/bin/BallanceMMO";
+
+    if (argc < 1) return -1;
+
+    if (argc == 1) {
+        target = available_binaries[0];
+        argc = 0;
+    }
+    else {
+        int index = parse_args(argc, argv);
+        if (index <= 0) return index;
+        argc -= index, argv += index;
+    }
+    cmd += target;
+    for (int i = 0; i < argc; ++i) {
+        cmd += ' ';
+        cmd += argv[i];
+    }
+
+    return std::system(cmd.c_str());
+}