CLI: Add --platform option

pierre-dejoue · Nov 4, 2023 · dd99fe3 · dd99fe3
1 parent 4de313f
commit dd99fe3
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Showing 3 changed files with 85 additions and 7 deletions.
diff --git a/src/cli/src/main.cpp b/src/cli/src/main.cpp
@@ -122,6 +122,9 @@ int main(int argc, char *argv[])
       {
         "version", { "--version" },
         "Print version and exit", 0 },
+      {
+        "platform", { "--platform" },
+        "Print platform information and exit", 0 },
       {
         "no-timing", { "--no-timing" },
         "Do not print out timing measurements", 0 },
@@ -183,6 +186,12 @@ int main(int argc, char *argv[])
         exit(0);
     }
 
+    if (args["platform"])
+    {
+        stdutils::platform::print_platform_info(std::cout);
+        exit(0);
+    }
+
     const bool validation_mode = args["validation-mode"];
     const bool verbose_mode = args["verbose"];
     const std::chrono::seconds timeout_duration(args["timeout"].as<unsigned int>(0u));

diff --git a/src/stdutils/include/stdutils/platform.h b/src/stdutils/include/stdutils/platform.h
@@ -11,6 +11,17 @@ namespace stdutils
 namespace platform
 {
 
+enum class OS
+{
+    UNKNOWN = 0,
+    LINUX,
+    MACOS,
+    WINDOWS
+};
+
+constexpr OS os();
+std::ostream& operator<<(std::ostream& out, OS os);
+
 enum class Compiler
 {
     UNKNOWN = 0,
@@ -35,11 +46,13 @@ enum class Arch
 constexpr Arch architecture();
 std::ostream& operator<<(std::ostream& out, Arch arch);
 
+void print_os(std::ostream& out);
 void print_cpp_standard(std::ostream& out);
 void print_compiler_info(std::ostream& out);
 void print_compilation_date(std::ostream& out);
 
+void print_platform_info(std::ostream& out);
 void print_compiler_all_info(std::ostream& out);
 
 }
-}
+}
diff --git a/src/stdutils/src/platform.cpp b/src/stdutils/src/platform.cpp
@@ -11,6 +11,48 @@ namespace stdutils
 namespace platform
 {
 
+constexpr OS os()
+{
+    // See: https://github.com/cpredef/predef/blob/master/OperatingSystems.md
+    #if   defined(__linux__)
+        return OS::LINUX;
+    #elif defined(__APPLE__)
+        return OS::MACOS;
+    #elif defined(_WIN32)
+        return OS::WINDOWS;
+    #else
+        return OS::UNKNOWN;
+    #endif
+}
+
+std::ostream& operator<<(std::ostream& out, OS os)
+{
+    switch(os)
+    {
+        case OS::UNKNOWN:
+            out << "Unknown";
+            break;
+
+        case OS::LINUX:
+            out << "linux";
+            break;
+
+        case OS::MACOS:
+            out << "macos";
+            break;
+
+        case OS::WINDOWS:
+            out << "windows";
+            break;
+
+        default:
+            assert(0);
+            out << "Unknown enum";
+            break;
+    }
+    return out;
+}
+
 constexpr Compiler compiler()
 {
     // NB: Test __GNUC__ last, because that macro is sometimes defined by other compilers than the "true" GCC
@@ -53,7 +95,7 @@ std::ostream& operator<<(std::ostream& out, Compiler compiler)
 
         default:
             assert(0);
-            out << "Unknown Id";
+            out << "Unknown enum";
             break;
     }
     return out;
@@ -94,7 +136,7 @@ std::string compiler_version()
 
         default:
             assert(0);
-            out << "Unknown Id";
+            out << "Unknown enum";
             break;
     }
     return out.str();
@@ -136,12 +178,18 @@ std::ostream& operator<<(std::ostream& out, Arch arch)
 
         default:
             assert(0);
-            out << "Unknown Id";
+            out << "Unknown enum";
             break;
     }
     return out;
 }
 
+void print_os(std::ostream& out)
+{
+    constexpr auto os_id = os();
+    out << "OS: " << os_id << std::endl;
+}
+
 void print_cpp_standard(std::ostream& out)
 {
     out << "C++ Standard: " << __cplusplus << std::endl;
@@ -167,13 +215,21 @@ void print_compilation_date(std::ostream& out)
     out << "Compilation date: " << __DATE__ << " " << __TIME__ << std::endl;
 }
 
-void print_compiler_all_info(std::ostream& out)
+void print_platform_info(std::ostream& out)
 {
-    print_cpp_standard(out);
+    print_os(out);
+    print_architecture_info(out);
     print_compiler_info(out);
+}
+
+void print_compiler_all_info(std::ostream& out)
+{
+    print_os(out);
     print_architecture_info(out);
+    print_compiler_info(out);
+    print_cpp_standard(out);
     print_compilation_date(out);
 }
 
 } // namespace platform
-} // namespace stdutils
+} // namespace stdutils