Bump to 0.2.17

- Drastically improve quality of generated CMake
- Fix a regression with recursive globbing in the root
- Automatically include CSharpUtilities when using CSharp

.clang-format

@@ -10,7 +10,7 @@ AlignTrailingComments: true
 AllowAllParametersOfDeclarationOnNextLine: true
 AllowShortBlocksOnASingleLine: false
 AllowShortCaseLabelsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: false
 AllowShortIfStatementsOnASingleLine: false
 AllowShortLoopsOnASingleLine: false
 AlwaysBreakAfterDefinitionReturnType: None

.gitignore

@@ -9,3 +9,4 @@ build*/
 .idea/
 cmake-build*/
 CMakeLists.txt.user
+.vscode/

CMakeLists.txt

@@ -7,17 +7,14 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
 	message(FATAL_ERROR "In-tree builds are not supported. Run CMake from a separate directory: cmake -B build")
 endif()
 
-# Regenerate CMakeLists.txt automatically in the root project
 set(CMKR_ROOT_PROJECT OFF)
 if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
 	set(CMKR_ROOT_PROJECT ON)
 
 	# Enable folder support
 	set_property(GLOBAL PROPERTY USE_FOLDERS ON)
-endif()
 
-# Create a configure-time dependency on cmake.toml to improve IDE support
-if(CMKR_ROOT_PROJECT)
+	# Create a configure-time dependency on cmake.toml to improve IDE support
 	configure_file(cmake.toml cmake.toml COPYONLY)
 endif()
 
@@ -25,7 +22,7 @@ project(cmkr
 	LANGUAGES
 		CXX
 	VERSION
-		0.2.11
+		0.2.17
 	DESCRIPTION
 		"CMakeLists generator from TOML"
 )
@@ -33,7 +30,7 @@ project(cmkr
 include("cmake/generate_documentation.cmake")
 include("cmake/generate_resources.cmake")
 
-# third_party
+# Subdirectory: third_party
 set(CMKR_CMAKE_FOLDER ${CMAKE_FOLDER})
 if(CMAKE_FOLDER)
 	set(CMAKE_FOLDER "${CMAKE_FOLDER}/third_party")
@@ -43,7 +40,7 @@ endif()
 add_subdirectory(third_party)
 set(CMAKE_FOLDER ${CMKR_CMAKE_FOLDER})
 
-# tests
+# Subdirectory: tests
 set(CMKR_CMAKE_FOLDER ${CMAKE_FOLDER})
 if(CMAKE_FOLDER)
 	set(CMAKE_FOLDER "${CMAKE_FOLDER}/tests")
@@ -53,29 +50,14 @@ endif()
 add_subdirectory(tests)
 set(CMAKE_FOLDER ${CMKR_CMAKE_FOLDER})
 
-
-
-# Target cmkr_generate_documentation
-set(CMKR_TARGET cmkr_generate_documentation)
-set(cmkr_generate_documentation_SOURCES "")
-
-set(CMKR_SOURCES ${cmkr_generate_documentation_SOURCES})
+# Target: cmkr_generate_documentation
 add_library(cmkr_generate_documentation INTERFACE)
 
-if(cmkr_generate_documentation_SOURCES)
-	target_sources(cmkr_generate_documentation INTERFACE ${cmkr_generate_documentation_SOURCES})
-endif()
-
+set(CMKR_TARGET cmkr_generate_documentation)
 generate_documentation()
 
-unset(CMKR_TARGET)
-unset(CMKR_SOURCES)
-
-# Target cmkr
-set(CMKR_TARGET cmkr)
-set(cmkr_SOURCES "")
-
-list(APPEND cmkr_SOURCES
+# Target: cmkr
+set(cmkr_SOURCES
 	"src/arguments.cpp"
 	"src/build.cpp"
 	"src/cmake_generator.cpp"
@@ -93,24 +75,12 @@ list(APPEND cmkr_SOURCES
 	"include/project_parser.hpp"
 	"cmake/cmkr.cmake"
 	"cmake/version.hpp.in"
-)
-
-list(APPEND cmkr_SOURCES
 	cmake.toml
 )
 
-set(CMKR_SOURCES ${cmkr_SOURCES})
 add_executable(cmkr)
 
-if(cmkr_SOURCES)
-	target_sources(cmkr PRIVATE ${cmkr_SOURCES})
-endif()
-
-get_directory_property(CMKR_VS_STARTUP_PROJECT DIRECTORY ${PROJECT_SOURCE_DIR} DEFINITION VS_STARTUP_PROJECT)
-if(NOT CMKR_VS_STARTUP_PROJECT)
-	set_property(DIRECTORY ${PROJECT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT cmkr)
-endif()
-
+target_sources(cmkr PRIVATE ${cmkr_SOURCES})
 source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} FILES ${cmkr_SOURCES})
 
 target_compile_features(cmkr PRIVATE
@@ -129,10 +99,13 @@ target_link_libraries(cmkr PRIVATE
 	nlohmann_json
 )
 
-generate_resources(${CMKR_TARGET})
+get_directory_property(CMKR_VS_STARTUP_PROJECT DIRECTORY ${PROJECT_SOURCE_DIR} DEFINITION VS_STARTUP_PROJECT)
+if(NOT CMKR_VS_STARTUP_PROJECT)
+	set_property(DIRECTORY ${PROJECT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT cmkr)
+endif()
 
-unset(CMKR_TARGET)
-unset(CMKR_SOURCES)
+set(CMKR_TARGET cmkr)
+generate_resources(${CMKR_TARGET})
 
 install(
 	TARGETS

README.md

@@ -64,8 +64,10 @@ arguments:
 
 ## Credits
 
-- https://github.com/gulrak/filesystem
-- https://github.com/Tessil/ordered-map
-- https://github.com/ToruNiina/toml11
-- https://github.com/mpark/variant
-- https://www.svgrepo.com/svg/192268/hammer
+- [gulrak/filesystem](https://github.com/gulrak/filesystem)
+- [Tessil/ordered-map](https://github.com/Tessil/ordered-map)
+- [ToruNiina/toml11](https://github.com/ToruNiina/toml11)
+- [mpark/variant](https://github.com/mpark/variant)
+- [SVG Repo Hammer](https://www.svgrepo.com/svg/192268/hammer)
+- [can1357](https://github.com/can1357) for buying `cmkr.build` ❤️
+- [JustasMasiulis](https://github.com/JustasMasiulis) for fixing the dark theme ❤️

cmake.toml

@@ -4,14 +4,14 @@ cmkr-include = false
 
 [project]
 name = "cmkr"
-version = "0.2.11"
+version = "0.2.17"
 description = "CMakeLists generator from TOML"
 languages = ["CXX"]
-subdirs = ["third_party", "tests"]
 include-after = [
     "cmake/generate_documentation.cmake",
     "cmake/generate_resources.cmake"
 ]
+subdirs = ["third_party", "tests"]
 
 [target.cmkr_generate_documentation]
 type = "interface"

cmake/bump_version.cmake

@@ -46,7 +46,7 @@ endif()
 
 message(STATUS "Version ${OLDVERSION} -> ${NEWVERSION}")
 
-find_program(CMKR_EXECUTABLE "cmkr" PATHS "${CMAKE_SOURCE_DIR}/build" NO_CACHE REQUIRED)
+find_program(CMKR_EXECUTABLE "cmkr" PATHS "${CMAKE_SOURCE_DIR}/build" PATH_SUFFIXES Debug Release RelWithDebInfo MinSizeRel NO_CACHE REQUIRED)
 message(STATUS "Found cmkr: ${CMKR_EXECUTABLE}")
 
 # Replace version in cmake.toml

cmake/cmkr.cmake

@@ -2,7 +2,7 @@ include_guard()
 
 # Change these defaults to point to your infrastructure if desired
 set(CMKR_REPO "https://github.com/build-cpp/cmkr" CACHE STRING "cmkr git repository" FORCE)
-set(CMKR_TAG "v0.2.11" CACHE STRING "cmkr git tag (this needs to be available forever)" FORCE)
+set(CMKR_TAG "v0.2.17" CACHE STRING "cmkr git tag (this needs to be available forever)" FORCE)
 set(CMKR_COMMIT_HASH "" CACHE STRING "cmkr git commit hash (optional)" FORCE)
 
 # To bootstrap/generate a cmkr project: cmake -P cmkr.cmake
@@ -58,7 +58,7 @@ else()
 endif()
 
 # Use cached cmkr if found
-if(DEFINED ENV{CMKR_CACHE} AND EXISTS "$ENV{CMKR_CACHE}")
+if(DEFINED ENV{CMKR_CACHE})
     set(CMKR_DIRECTORY_PREFIX "$ENV{CMKR_CACHE}")
     string(REPLACE "\\" "/" CMKR_DIRECTORY_PREFIX "${CMKR_DIRECTORY_PREFIX}")
     if(NOT CMKR_DIRECTORY_PREFIX MATCHES "\\/$")
@@ -72,10 +72,27 @@ endif()
 set(CMKR_DIRECTORY "${CMKR_DIRECTORY_PREFIX}${CMKR_TAG}")
 set(CMKR_CACHED_EXECUTABLE "${CMKR_DIRECTORY}/bin/${CMKR_EXECUTABLE_NAME}")
 
+# Helper function to check if a string starts with a prefix
+# Cannot use MATCHES, see: https://github.com/build-cpp/cmkr/issues/61
+function(cmkr_startswith str prefix result)
+    string(LENGTH "${prefix}" prefix_length)
+    string(LENGTH "${str}" str_length)
+    if(prefix_length LESS_EQUAL str_length)
+        string(SUBSTRING "${str}" 0 ${prefix_length} str_prefix)
+        if(prefix STREQUAL str_prefix)
+            set("${result}" ON PARENT_SCOPE)
+            return()
+        endif()
+    endif()
+    set("${result}" OFF PARENT_SCOPE)
+endfunction()
+
 # Handle upgrading logic
 if(CMKR_EXECUTABLE AND NOT CMKR_CACHED_EXECUTABLE STREQUAL CMKR_EXECUTABLE)
-    if(CMKR_EXECUTABLE MATCHES "^${CMAKE_CURRENT_BINARY_DIR}/_cmkr")
-        if(DEFINED ENV{CMKR_CACHE} AND EXISTS "$ENV{CMKR_CACHE}")
+    cmkr_startswith("${CMKR_EXECUTABLE}" "${CMAKE_CURRENT_BINARY_DIR}/_cmkr" CMKR_STARTSWITH_BUILD)
+    cmkr_startswith("${CMKR_EXECUTABLE}" "${CMKR_DIRECTORY_PREFIX}" CMKR_STARTSWITH_CACHE)
+    if(CMKR_STARTSWITH_BUILD)
+        if(DEFINED ENV{CMKR_CACHE})
             message(AUTHOR_WARNING "[cmkr] Switching to cached cmkr: '${CMKR_CACHED_EXECUTABLE}'")
             if(EXISTS "${CMKR_CACHED_EXECUTABLE}")
                 set(CMKR_EXECUTABLE "${CMKR_CACHED_EXECUTABLE}" CACHE FILEPATH "Full path to cmkr executable" FORCE)
@@ -86,7 +103,7 @@ if(CMKR_EXECUTABLE AND NOT CMKR_CACHED_EXECUTABLE STREQUAL CMKR_EXECUTABLE)
             message(AUTHOR_WARNING "[cmkr] Upgrading '${CMKR_EXECUTABLE}' to '${CMKR_CACHED_EXECUTABLE}'")
             unset(CMKR_EXECUTABLE CACHE)
         endif()
-    elseif(DEFINED ENV{CMKR_CACHE} AND EXISTS "$ENV{CMKR_CACHE}" AND CMKR_EXECUTABLE MATCHES "^${CMKR_DIRECTORY_PREFIX}")
+    elseif(DEFINED ENV{CMKR_CACHE} AND CMKR_STARTSWITH_CACHE)
         message(AUTHOR_WARNING "[cmkr] Upgrading cached '${CMKR_EXECUTABLE}' to '${CMKR_CACHED_EXECUTABLE}'")
         unset(CMKR_EXECUTABLE CACHE)
     endif()

cmake/generate_documentation.cmake

@@ -1,20 +1,20 @@
 option(CMKR_GENERATE_DOCUMENTATION "Generate cmkr documentation" ${CMKR_ROOT_PROJECT})
-set(CMKR_TESTS "" CACHE INTERNAL "List of test directories in the order declared in tests/cmake.toml")
-
-if(CMKR_GENERATE_DOCUMENTATION)
-    # Hook the add_test function to capture the tests in the order declared in tests/cmake.toml
-    function(add_test)
-        cmake_parse_arguments(TEST "" "WORKING_DIRECTORY" "" ${ARGN})
-        get_filename_component(TEST_WORKING_DIRECTORY "${TEST_WORKING_DIRECTORY}" NAME)
-        list(APPEND CMKR_TESTS "${TEST_WORKING_DIRECTORY}")
-        set(CMKR_TESTS "${CMKR_TESTS}" CACHE INTERNAL "")
-        _add_test(${test} ${ARGN})
-    endfunction()
-endif()
 
 function(generate_documentation)
     if(CMKR_GENERATE_DOCUMENTATION)
         message(STATUS "[cmkr] Generating documentation...")
+
+        # Extract the order of the tests
+        set(CMKR_TESTS "")
+        file(READ "${PROJECT_SOURCE_DIR}/tests/cmake.toml" tests_toml NO_HEX_CONVERSION)
+        string(REGEX MATCHALL "working-directory = \"([^\"]+)\"" tests_match "${tests_toml}")
+        foreach(match ${tests_match})
+            if(match MATCHES "working-directory = \"([^\"]+)\"")
+                list(APPEND CMKR_TESTS "${CMAKE_MATCH_1}")
+            else()
+                message(FATAL_ERROR "This should not happen (wrong regex?)")
+            endif()
+        endforeach()
         
         # Delete previously generated examples
         set(example_folder "${PROJECT_SOURCE_DIR}/docs/examples")

docs/cmake-toml.md

@@ -27,6 +27,7 @@ name = "myproject"
 version = "1.0.0"
 description = "Description of the project"
 languages = ["C", "CXX"]
+msvc-runtime = "" # dynamic (implicit default), static
 cmake-before = """
 message(STATUS "CMake injected before the project() call")
 """
@@ -43,8 +44,8 @@ You can specify your own conditions and use them in any `condition` field:
 
 ```toml
 [conditions]
-arch64 = "CMAKE_SIZEOF_VOID_P EQUALS 8"
-arch32 = "CMAKE_SIZEOF_VOID_P EQUALS 4"
+arch64 = "CMAKE_SIZEOF_VOID_P EQUAL 8"
+arch32 = "CMAKE_SIZEOF_VOID_P EQUAL 4"
 ```
 
 This will make the `arch64` and `arch32` conditions available with their respective CMake expressions. 
@@ -58,6 +59,8 @@ sources = ["src/main.cpp"]
 windows.sources = ["src/windows_specific.cpp"]
 ```
 
+### Predefined conditions
+
 The following conditions are predefined (you can override them if you desire):
 
 ```toml
@@ -144,6 +147,7 @@ alias = "mytarget::mytarget"
 type = "static" # executable, shared (DLL), static, interface, object, library, custom
 headers = ["src/mytarget.h"]
 sources = ["src/mytarget.cpp"]
+msvc-runtime = "" # dynamic (implicit default), static
 
 # The keys below match the target_xxx CMake commands
 # Keys prefixed with private- will get PRIVATE visibility
@@ -200,7 +204,9 @@ working-directory = "mytest-dir"
 condition = "mycondition"
 targets = ["mytarget", "mytest"]
 destination = ["bin"]
+component = "mycomponent"
 files = ["content/my.png"]
-dirs = [""]
-configs = [""]
+dirs = ["include"]
+configs = ["Release", "Debug"]
+optional = false
 ```

docs/examples/msvc-runtime.md

@@ -0,0 +1,34 @@
+---
+# Automatically generated from tests/msvc-runtime/cmake.toml - DO NOT EDIT
+layout: default
+title: Static MSVC runtime
+permalink: /examples/msvc-runtime
+parent: Examples
+nav_order: 8
+---
+
+# Static MSVC runtime
+
+
+
+```toml
+[project]
+name = "msvc-runtime"
+description = "Static MSVC runtime"
+msvc-runtime = "static"
+
+# This target will compile with a static runtime
+[target.static-runtime]
+type = "executable"
+sources = ["src/main.cpp"]
+
+# This target overrides the [project].msvc-runtime
+[target.dynamic-runtime]
+type = "executable"
+sources = ["src/main.cpp"]
+msvc-runtime = "dynamic"
+```
+
+
+
+<sup><sub>This page was automatically generated from [tests/msvc-runtime/cmake.toml](https://github.com/build-cpp/cmkr/tree/main/tests/msvc-runtime/cmake.toml).</sub></sup>

docs/index.md

@@ -70,8 +70,10 @@ arguments:
 
 ## Credits
 
-- https://github.com/gulrak/filesystem
-- https://github.com/Tessil/ordered-map
-- https://github.com/ToruNiina/toml11
-- https://github.com/mpark/variant
-- https://www.svgrepo.com/svg/192268/hammer
+- [gulrak/filesystem](https://github.com/gulrak/filesystem)
+- [Tessil/ordered-map](https://github.com/Tessil/ordered-map)
+- [ToruNiina/toml11](https://github.com/ToruNiina/toml11)
+- [mpark/variant](https://github.com/mpark/variant)
+- [SVG Repo Hammer](https://www.svgrepo.com/svg/192268/hammer)
+- [can1357](https://github.com/can1357) for buying `cmkr.build` ❤️
+- [JustasMasiulis](https://github.com/JustasMasiulis) for fixing the dark theme ❤️

include/project_parser.hpp

@@ -3,6 +3,7 @@
 #include <mpark/variant.hpp>
 #include <string>
 #include <tsl/ordered_map.h>
+#include <tsl/ordered_set.h>
 #include <vector>
 
 namespace cmkr {
@@ -67,7 +68,6 @@ struct Target {
     TargetType type = target_last;
     std::string type_name;
 
-    ConditionVector headers;
     ConditionVector sources;
 
     // https://cmake.org/cmake/help/latest/manual/cmake-commands.7.html#project-commands
@@ -128,6 +128,7 @@ struct Install {
     std::vector<std::string> configs;
     std::string destination;
     std::string component;
+    bool optional = false;
 };
 
 struct Subdir {
@@ -151,7 +152,17 @@ struct Content {
     ConditionVector include_after;
 };
 
+enum MsvcRuntimeType {
+    msvc_dynamic,
+    msvc_static,
+    msvc_last,
+};
+
+extern const char *msvcRuntimeTypeNames[msvc_last];
+
 struct Project {
+    const Project *parent;
+
     // This is the CMake version required to use all cmkr versions.
     std::string cmake_version = "3.15";
     std::string cmkr_include = "cmkr.cmake";
@@ -169,6 +180,7 @@ struct Project {
     std::string project_version;
     std::string project_description;
     std::vector<std::string> project_languages;
+    MsvcRuntimeType project_msvc_runtime = msvc_last;
     Condition<std::string> cmake_before;
     Condition<std::string> cmake_after;
     ConditionVector include_before;
@@ -186,6 +198,7 @@ struct Project {
     std::vector<Subdir> subdirs;
 
     Project(const Project *parent, const std::string &path, bool build);
+    const Project *root() const;
 };
 
 bool is_root_path(const std::string &path);

src/cmake_generator.cpp

@@ -4,6 +4,7 @@
 #include <resources/cmkr.hpp>
 
 #include "fs.hpp"
+#include "project_parser.hpp"
 #include <cstdio>
 #include <fstream>
 #include <memory>
@@ -25,7 +26,7 @@ static std::string format(const char *format, tsl::ordered_map<std::string, std:
     return s;
 }
 
-static std::vector<std::string> expand_cmake_path(const fs::path &name, const fs::path &toml_dir, bool root_project) {
+static std::vector<std::string> expand_cmake_path(const fs::path &name, const fs::path &toml_dir, bool is_root_project) {
     std::vector<std::string> temp;
 
     auto extract_suffix = [](const fs::path &base, const fs::path &full) {
@@ -38,7 +39,7 @@ static std::vector<std::string> expand_cmake_path(const fs::path &name, const fs
     auto stem = name.filename().stem().string();
     auto ext = name.extension();
 
-    if (root_project && stem == "**" && name == name.filename()) {
+    if (is_root_project && stem == "**" && name == name.filename()) {
         throw std::runtime_error("Recursive globbing not allowed in project root: " + name.string());
     }
 
@@ -66,11 +67,11 @@ static std::vector<std::string> expand_cmake_path(const fs::path &name, const fs
     return temp;
 }
 
-static std::vector<std::string> expand_cmake_paths(const std::vector<std::string> &sources, const fs::path &toml_dir, bool root_project) {
+static std::vector<std::string> expand_cmake_paths(const std::vector<std::string> &sources, const fs::path &toml_dir, bool is_root_project) {
     // TODO: add duplicate checking
     std::vector<std::string> result;
     for (const auto &src : sources) {
-        auto expanded = expand_cmake_path(src, toml_dir, root_project);
+        auto expanded = expand_cmake_path(src, toml_dir, is_root_project);
         for (const auto &f : expanded) {
             result.push_back(f);
         }
@@ -89,8 +90,24 @@ static void create_file(const fs::path &path, const std::string &contents) {
     ofs << contents;
 }
 
+// CMake target name rules: https://cmake.org/cmake/help/latest/policy/CMP0037.html [A-Za-z0-9_.+\-]
+// TOML bare keys: non-empty strings composed only of [A-Za-z0-9_-]
+// We replace all non-TOML bare key characters with _
+static std::string escape_project_name(const std::string &name) {
+    std::string escaped;
+    escaped.reserve(name.length());
+    for (auto ch : name) {
+        if ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9') || ch == '_' || ch == '-') {
+            escaped += ch;
+        } else {
+            escaped += '_';
+        }
+    }
+    return escaped;
+}
+
 void generate_project(const std::string &type) {
-    const auto name = fs::current_path().stem().string();
+    const auto name = escape_project_name(fs::current_path().stem().string());
     if (fs::exists(fs::current_path() / "cmake.toml")) {
         throw std::runtime_error("Cannot initialize a project when cmake.toml already exists!");
     }
@@ -126,13 +143,17 @@ void generate_project(const std::string &type) {
 
 struct CommandEndl {
     std::stringstream &ss;
-    CommandEndl(std::stringstream &ss) : ss(ss) {}
-    void endl() { ss << '\n'; }
+    CommandEndl(std::stringstream &ss) : ss(ss) {
+    }
+    void endl() {
+        ss << '\n';
+    }
 };
 
 struct RawArg {
     RawArg() = default;
-    RawArg(std::string arg) : arg(std::move(arg)) {}
+    RawArg(std::string arg) : arg(std::move(arg)) {
+    }
 
     std::string arg;
 };
@@ -148,7 +169,8 @@ struct Command {
     std::string post_comment;
 
     Command(std::stringstream &ss, int depth, std::string command, std::string post_comment)
-        : ss(ss), depth(depth), command(std::move(command)), post_comment(std::move(post_comment)) {}
+        : ss(ss), depth(depth), command(std::move(command)), post_comment(std::move(post_comment)) {
+    }
 
     ~Command() noexcept(false) {
         if (!generated) {
@@ -162,10 +184,11 @@ struct Command {
             return "\"\"";
         }
         // Don't quote arguments that don't need quoting
-        if (str.find(' ') == std::string::npos && str.find('\"') == std::string::npos && str.find('/') == std::string::npos &&
-            str.find(';') == std::string::npos) {
+        // https://cmake.org/cmake/help/latest/manual/cmake-language.7.html#unquoted-argument
+        // NOTE: Normally '/' does not require quoting according to the documentation but this has been the case here
+        //       previously, so for backwards compatibility its still here.
+        if (str.find_first_of("()#\"\\'> |/;") == str.npos)
             return str;
-        }
         std::string result;
         result += "\"";
         for (char ch : str) {
@@ -316,7 +339,8 @@ static std::string tolf(const std::string &str) {
 };
 
 struct Generator {
-    Generator(const parser::Project &project) : project(project) {}
+    Generator(const parser::Project &project) : project(project) {
+    }
     Generator(const Generator &) = delete;
 
     const parser::Project &project;
@@ -342,7 +366,9 @@ struct Generator {
         return CommandEndl(ss);
     }
 
-    void endl() { ss << '\n'; }
+    void endl() {
+        ss << '\n';
+    }
 
     void inject_includes(const std::vector<std::string> &includes) {
         if (!includes.empty()) {
@@ -391,9 +417,10 @@ struct Generator {
                 }
 
                 if (!condition.empty()) {
-                    cmd("endif")();
+                    cmd("endif")().endl();
+                } else if (!itr.second.empty()) {
+                    endl();
                 }
-                endl();
             }
         }
     }
@@ -480,7 +507,7 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
     }
 
     // Root project doesn't have a parent
-    auto root_project = parent_project == nullptr;
+    auto is_root_project = parent_project == nullptr;
 
     parser::Project project(parent_project, path, false);
     Generator gen(project);
@@ -496,9 +523,27 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
     comment("See " + cmkr_url + " for more information");
     endl();
 
-    if (root_project) {
+    if (is_root_project) {
         cmd("cmake_minimum_required")("VERSION", project.cmake_version).endl();
 
+        if (project.project_msvc_runtime != parser::msvc_last) {
+            comment("Enable support for MSVC_RUNTIME_LIBRARY");
+            cmd("cmake_policy")("SET", "CMP0091", "NEW");
+
+            switch (project.project_msvc_runtime) {
+            case parser::msvc_dynamic:
+                cmd("set")("CMAKE_MSVC_RUNTIME_LIBRARY", "MultiThreaded$<$<CONFIG:Debug>:Debug>DLL");
+                break;
+            case parser::msvc_static:
+                cmd("set")("CMAKE_MSVC_RUNTIME_LIBRARY", "MultiThreaded$<$<CONFIG:Debug>:Debug>");
+                break;
+            default:
+                break;
+            }
+            endl();
+        }
+
+        // clang-format on
         if (!project.allow_in_tree) {
             // clang-format off
             cmd("if")("CMAKE_SOURCE_DIR", "STREQUAL", "CMAKE_BINARY_DIR");
@@ -507,14 +552,13 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
             // clang-format on
         }
 
-        comment("Regenerate CMakeLists.txt automatically in the root project");
         cmd("set")("CMKR_ROOT_PROJECT", "OFF");
         // clang-format off
         cmd("if")("CMAKE_CURRENT_SOURCE_DIR", "STREQUAL", "CMAKE_SOURCE_DIR");
             cmd("set")("CMKR_ROOT_PROJECT", "ON").endl();
 
             if (!project.cmkr_include.empty()) {
-                comment("Bootstrap cmkr");
+                comment("Bootstrap cmkr and automatically regenerate CMakeLists.txt");
                 cmd("include")(project.cmkr_include, "OPTIONAL", "RESULT_VARIABLE", "CMKR_INCLUDE_RESULT");
                 cmd("if")("CMKR_INCLUDE_RESULT");
                     cmd("cmkr")();
@@ -522,7 +566,10 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
             }
 
             comment("Enable folder support");
-            cmd("set_property")("GLOBAL", "PROPERTY", "USE_FOLDERS", "ON");
+            cmd("set_property")("GLOBAL", "PROPERTY", "USE_FOLDERS", "ON").endl();
+
+            comment("Create a configure-time dependency on cmake.toml to improve IDE support");
+            cmd("configure_file")("cmake.toml", "cmake.toml", "COPYONLY");
         cmd("endif")().endl();
         // clang-format on
 
@@ -530,15 +577,15 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
         if (!project.cmkr_include.empty() && !fs::exists(cmkr_include) && cmkr_include.is_relative()) {
             create_file(cmkr_include, resources::cmkr);
         }
+    } else {
+        // clang-format off
+        comment("Create a configure-time dependency on cmake.toml to improve IDE support");
+        cmd("if")("CMKR_ROOT_PROJECT");
+            cmd("configure_file")("cmake.toml", "cmake.toml", "COPYONLY");
+        cmd("endif")().endl();
+        // clang-format on
     }
 
-    // clang-format off
-    comment("Create a configure-time dependency on cmake.toml to improve IDE support");
-    cmd("if")("CMKR_ROOT_PROJECT");
-        cmd("configure_file")("cmake.toml", "cmake.toml", "COPYONLY");
-    cmd("endif")().endl();
-    // clang-format on
-
     // TODO: remove support and replace with global compile-features
     if (!project.cppflags.empty()) {
         ss << "set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} \"";
@@ -574,6 +621,7 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
         endl();
     }
 
+    // TODO: rename to 'variables'?
     if (!project.settings.empty()) {
         comment("Settings");
         for (const auto &set : project.settings) {
@@ -603,6 +651,13 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
         auto version = std::make_pair("VERSION", project.project_version);
         auto description = std::make_pair("DESCRIPTION", project.project_description);
         cmd("project")(project.project_name, languages, version, description).endl();
+
+        for (const auto &language : project.project_languages) {
+            if (language == "CSharp") {
+                cmd("include")("CSharpUtilities").endl();
+                break;
+            }
+        }
     }
 
     gen.conditional_includes(project.include_after);
@@ -633,8 +688,12 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
             cmd("include")("FetchContent");
             cmd("message")("STATUS", "Fetching vcpkg (" + version_name + ")...");
             cmd("FetchContent_Declare")("vcpkg", "URL", url);
-            cmd("FetchContent_MakeAvailable")("vcpkg");
-            cmd("include")("${vcpkg_SOURCE_DIR}/scripts/buildsystems/vcpkg.cmake");
+            // Not using FetchContent_MakeAvailable here in case vcpkg adds CMakeLists.txt
+            cmd("FetchContent_GetProperties")("vcpkg");
+            cmd("if")("NOT", "vcpkg_POPULATED");
+                cmd("FetchContent_Populate")("vcpkg");
+                cmd("include")("${vcpkg_SOURCE_DIR}/scripts/buildsystems/vcpkg.cmake");
+            cmd("endif")();
         cmd("endif")();
         endl();
         // clang-format on
@@ -718,11 +777,7 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
                 version_info = " (" + content.arguments.at("SVN_REVISION") + ")";
             }
             cmd("message")("STATUS", "Fetching " + content.name + version_info + "...");
-            ss << "FetchContent_Declare(\n\t" << content.name << "\n";
-            for (const auto &arg : content.arguments) {
-                ss << "\t" << arg.first << "\n\t\t" << arg.second << "\n";
-            }
-            ss << ")\n";
+            cmd("FetchContent_Declare")(content.name, content.arguments);
             cmd("FetchContent_MakeAvailable")(content.name).endl();
 
             gen.conditional_includes(content.include_after);
@@ -746,7 +801,7 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
 
     auto add_subdir = [&](const std::string &dir) {
         // clang-format off
-        comment(dir);
+        comment("Subdirectory: " + dir);
         cmd("set")("CMKR_CMAKE_FOLDER", "${CMAKE_FOLDER}");
         cmd("if")("CMAKE_FOLDER");
             cmd("set")("CMAKE_FOLDER", "${CMAKE_FOLDER}/" + dir);
@@ -756,17 +811,19 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
         // clang-format on
 
         cmd("add_subdirectory")(dir);
-        cmd("set")("CMAKE_FOLDER", "${CMKR_CMAKE_FOLDER}").endl();
+        cmd("set")("CMAKE_FOLDER", "${CMKR_CMAKE_FOLDER}");
     };
 
     // generate_cmake is called on the subdirectories recursively later
     if (!project.project_subdirs.empty()) {
         gen.handle_condition(project.project_subdirs, [&](const std::string &, const std::vector<std::string> &subdirs) {
-            for (const auto &dir : subdirs) {
-                add_subdir(dir);
+            for (size_t i = 0; i < subdirs.size(); i++) {
+                add_subdir(subdirs[i]);
+                if (i + 1 < subdirs.size()) {
+                    endl();
+                }
             }
         });
-        endl();
     }
     for (const auto &subdir : project.subdirs) {
         ConditionScope cs(gen, subdir.condition);
@@ -775,22 +832,20 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
         gen.conditional_cmake(subdir.cmake_before);
 
         add_subdir(subdir.name);
+        endl();
 
         gen.conditional_includes(subdir.include_after);
         gen.conditional_cmake(subdir.cmake_after);
     }
 
     if (!project.targets.empty()) {
+        auto project_root = project.root();
         for (size_t i = 0; i < project.targets.size(); i++) {
-            if (i > 0) {
-                endl();
-            }
-
             const auto &target = project.targets[i];
             const parser::Template *tmplate = nullptr;
             std::unique_ptr<ConditionScope> tmplate_cs{};
 
-            comment("Target " + target.name);
+            comment("Target: " + target.name);
 
             // Check if this target is using a template.
             if (target.type == parser::target_template) {
@@ -804,56 +859,115 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
 
             ConditionScope cs(gen, target.condition);
 
-            cmd("set")("CMKR_TARGET", target.name);
+            // Detect if there is cmake included before/after the target
+            auto has_include_before = false;
+            auto has_include_after = false;
+            {
+                auto has_include = [](const parser::ConditionVector &includes) {
+                    for (const auto &itr : includes) {
+                        for (const auto &jtr : itr.second) {
+                            return true;
+                        }
+                    }
+                    return false;
+                };
+                auto has_include_helper = [&](const parser::Target &target) {
+                    if (!target.cmake_before.empty() || has_include(target.include_before)) {
+                        has_include_before = true;
+                    }
+                    if (!target.cmake_after.empty() || has_include(target.include_after)) {
+                        has_include_after = true;
+                    }
+                };
+                if (tmplate != nullptr) {
+                    has_include_helper(tmplate->outline);
+                }
+                has_include_helper(target);
+            }
 
+            // Generate the include before
+            if (has_include_before) {
+                cmd("set")("CMKR_TARGET", target.name);
+            }
             if (tmplate != nullptr) {
                 gen.conditional_includes(tmplate->outline.include_before);
                 gen.conditional_cmake(tmplate->outline.cmake_before);
             }
-
             gen.conditional_includes(target.include_before);
             gen.conditional_cmake(target.cmake_before);
 
-            auto sources_var = target.name + "_SOURCES";
+            // Merge the sources from the template and the target. The sources
+            // without condition need to be processed first
+            parser::Condition<tsl::ordered_set<std::string>> msources;
+            msources[""].clear();
 
-            bool added_toml = false;
-            cmd("set")(sources_var, RawArg("\"\"")).endl();
-
-            if (tmplate != nullptr) {
-                gen.handle_condition(tmplate->outline.sources, [&](const std::string &condition, const std::vector<std::string> &condition_sources) {
-                    auto sources = expand_cmake_paths(condition_sources, path, root_project);
-                    if (sources.empty()) {
-                        auto source_key = condition.empty() ? "sources" : (condition + ".sources");
-                        throw std::runtime_error(target.name + " " + source_key + " wildcard found 0 files");
+            auto merge_sources = [&msources](const parser::ConditionVector &sources) {
+                for (const auto &itr : sources) {
+                    auto &source_list = msources[itr.first];
+                    for (const auto &source : itr.second) {
+                        source_list.insert(source);
                     }
-                    cmd("list")("APPEND", sources_var, sources);
-                });
+                }
+            };
+            if (tmplate != nullptr) {
+                merge_sources(tmplate->outline.sources);
+            }
+            merge_sources(target.sources);
+
+            // Improve IDE support
+            if (target.type != parser::target_interface) {
+                msources[""].insert("cmake.toml");
             }
 
-            gen.handle_condition(target.sources, [&](const std::string &condition, const std::vector<std::string> &condition_sources) {
-                auto sources = expand_cmake_paths(condition_sources, path, root_project);
+            // If there are only conditional sources we generate a 'set' to
+            // create an empty source list. The rest is then appended using
+            // 'list(APPEND ...)'
+            auto has_sources = false;
+            for (const auto &itr : msources) {
+                if (!itr.second.empty()) {
+                    has_sources = true;
+                    break;
+                }
+            }
+            auto sources_var = target.name + "_SOURCES";
+            auto sources_with_set = true;
+            if (has_sources && msources[""].empty()) {
+                sources_with_set = false;
+                cmd("set")(sources_var, RawArg("\"\"")).endl();
+            }
+
+            gen.handle_condition(msources, [&](const std::string &condition, const tsl::ordered_set<std::string> &source_set) {
+                std::vector<std::string> condition_sources;
+                condition_sources.reserve(source_set.size());
+                for (const auto &source : source_set) {
+                    condition_sources.push_back(source);
+                }
+                auto sources = expand_cmake_paths(condition_sources, path, is_root_project);
                 if (sources.empty()) {
                     auto source_key = condition.empty() ? "sources" : (condition + ".sources");
                     throw std::runtime_error(target.name + " " + source_key + " wildcard found 0 files");
                 }
-                // Do not add cmake.toml twice
-                if (!added_toml && std::find(sources.begin(), sources.end(), "cmake.toml") != sources.end()) {
-                    added_toml = true;
+                if (sources_with_set) {
+                    // This is a sanity check to make sure the unconditional sources are first
+                    if (!condition.empty()) {
+                        throw std::runtime_error("Unreachable code, make sure unconditional sources are first");
+                    }
+                    cmd("set")(sources_var, sources);
+                    sources_with_set = false;
+                } else {
+                    cmd("list")("APPEND", sources_var, sources);
                 }
-                cmd("list")("APPEND", sources_var, sources);
             });
 
             auto target_type = target.type;
 
             if (tmplate != nullptr) {
+                if (target_type != parser::target_template) {
+                    throw std::runtime_error("Unreachable code, unexpected target type for template");
+                }
                 target_type = tmplate->outline.type;
             }
 
-            if (!added_toml && target_type != parser::target_interface) {
-                cmd("list")("APPEND", sources_var, std::vector<std::string>{"cmake.toml"}).endl();
-            }
-            cmd("set")("CMKR_SOURCES", "${" + sources_var + "}");
-
             std::string add_command;
             std::string target_type_string;
             std::string target_scope;
@@ -909,34 +1023,20 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
                     cmd(add_command)(target.name, target_type_string, "${" + sources_var + "}");
                 } else {
                     cmd(add_command)(target.name, target_type_string).endl();
-
-                    // clang-format off
-                    cmd("if")(sources_var);
-                        cmd("target_sources")(target.name, target_type == parser::target_interface ? "INTERFACE" : "PRIVATE", "${" + sources_var + "}");
-                    cmd("endif")().endl();
-                    // clang-format on
+                    if (has_sources) {
+                        cmd("target_sources")(target.name, target_type == parser::target_interface ? "INTERFACE" : "PRIVATE",
+                                              "${" + sources_var + "}");
+                    }
                 }
             } else {
                 cmd(add_command)(target.name, target_type_string).endl();
-
-                // clang-format off
-                cmd("if")(sources_var);
+                if (has_sources) {
                     cmd("target_sources")(target.name, target_type == parser::target_interface ? "INTERFACE" : "PRIVATE", "${" + sources_var + "}");
-                cmd("endif")().endl();
-                // clang-format on
+                }
             }
 
-            // The first executable target will become the Visual Studio startup project
-            if (target_type == parser::target_executable) {
-                cmd("get_directory_property")("CMKR_VS_STARTUP_PROJECT", "DIRECTORY", "${PROJECT_SOURCE_DIR}", "DEFINITION", "VS_STARTUP_PROJECT");
-                // clang-format off
-                cmd("if")("NOT", "CMKR_VS_STARTUP_PROJECT");
-                    cmd("set_property")("DIRECTORY", "${PROJECT_SOURCE_DIR}", "PROPERTY", "VS_STARTUP_PROJECT", target.name);
-                cmd("endif")().endl();
-                // clang-format on
-            }
-
-            if (!target.sources.empty()) {
+            // TODO: support sources from other directories
+            if (has_sources) {
                 cmd("source_group")("TREE", "${CMAKE_CURRENT_SOURCE_DIR}", "FILES", "${" + sources_var + "}").endl();
             }
 
@@ -989,23 +1089,39 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
                 }
 
                 gen.handle_condition(props, [&](const std::string &, const tsl::ordered_map<std::string, std::string> &properties) {
+                    for (const auto &propItr : properties) {
+                        if (propItr.first == "MSVC_RUNTIME_LIBRARY") {
+                            if (project_root->project_msvc_runtime == parser::msvc_last) {
+                                throw std::runtime_error("You cannot set [target].msvc-runtime without setting the root [project].msvc-runtime");
+                            }
+                        }
+                    }
                     cmd("set_target_properties")(target.name, "PROPERTIES", properties);
                 });
             }
 
+            // The first executable target will become the Visual Studio startup project
+            // TODO: this is not working properly
+            if (target_type == parser::target_executable) {
+                cmd("get_directory_property")("CMKR_VS_STARTUP_PROJECT", "DIRECTORY", "${PROJECT_SOURCE_DIR}", "DEFINITION", "VS_STARTUP_PROJECT");
+                // clang-format off
+                cmd("if")("NOT", "CMKR_VS_STARTUP_PROJECT");
+                    cmd("set_property")("DIRECTORY", "${PROJECT_SOURCE_DIR}", "PROPERTY", "VS_STARTUP_PROJECT", target.name);
+                cmd("endif")().endl();
+                // clang-format on
+            }
+
+            // Generate the include after
+            if (!has_include_before && has_include_after) {
+                cmd("set")("CMKR_TARGET", target.name);
+            }
             gen.conditional_includes(target.include_after);
             gen.conditional_cmake(target.cmake_after);
-
             if (tmplate != nullptr) {
                 gen.conditional_includes(tmplate->outline.include_after);
                 gen.conditional_cmake(tmplate->outline.cmake_after);
             }
-
-            cmd("unset")("CMKR_TARGET");
-            cmd("unset")("CMKR_SOURCES");
         }
-
-        endl();
     }
 
     if (!project.tests.empty()) {
@@ -1031,7 +1147,7 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
             auto dirs = std::make_pair("DIRS", inst.dirs);
             std::vector<std::string> files_data;
             if (!inst.files.empty()) {
-                files_data = expand_cmake_paths(inst.files, path, root_project);
+                files_data = expand_cmake_paths(inst.files, path, is_root_project);
                 if (files_data.empty()) {
                     throw std::runtime_error("[[install]] files wildcard did not resolve to any files");
                 }
@@ -1044,8 +1160,9 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
                 component_name = inst.targets.front();
             }
             auto component = std::make_pair("COMPONENT", component_name);
+            auto optional = inst.optional ? "OPTIONAL" : "";
             ConditionScope cs(gen, inst.condition);
-            cmd("install")(targets, dirs, files, configs, destination, component);
+            cmd("install")(targets, dirs, files, configs, destination, component, optional);
         }
     }
 

src/error.cpp

@@ -1,15 +1,21 @@
 #include "error.hpp"
 
 #include <cassert>
+#include <cstddef>
 
 namespace cmkr {
 namespace error {
 
-Status::Status(Code ec) noexcept : ec_(ec) {}
+Status::Status(Code ec) noexcept : ec_(ec) {
+}
 
-Status::operator int() const noexcept { return static_cast<int>(ec_); }
+Status::operator int() const noexcept {
+    return static_cast<int>(ec_);
+}
 
-Status::Code Status::code() const noexcept { return ec_; }
+Status::Code Status::code() const noexcept {
+    return ec_;
+}
 
 } // namespace error
 } // namespace cmkr
@@ -20,6 +26,6 @@ static const char *err_string[] = {
 };
 
 const char *cmkr_error_status(int i) {
-    assert(i >= 0 && i < (sizeof(err_string) / sizeof(*(err_string))));
+    assert(i >= 0 && static_cast<size_t>(i) < (sizeof(err_string) / sizeof(*(err_string))));
     return err_string[i];
 }

src/help.cpp

@@ -4,7 +4,9 @@
 namespace cmkr {
 namespace help {
 
-const char *version() noexcept { return "cmkr version " CMKR_VERSION; }
+const char *version() noexcept {
+    return "cmkr version " CMKR_VERSION;
+}
 
 const char *message() noexcept {
     return R"lit(
@@ -22,6 +24,10 @@ arguments:
 } // namespace help
 } // namespace cmkr
 
-const char *cmkr_help_version(void) { return cmkr::help::version(); }
+const char *cmkr_help_version(void) {
+    return cmkr::help::version();
+}
 
-const char *cmkr_help_message(void) { return cmkr::help::message(); }
+const char *cmkr_help_message(void) {
+    return cmkr::help::message();
+}

src/project_parser.cpp

@@ -4,8 +4,6 @@
 #include <deque>
 #include <stdexcept>
 #include <toml.hpp>
-#include <tsl/ordered_map.h>
-#include <tsl/ordered_set.h>
 
 namespace cmkr {
 namespace parser {
@@ -21,6 +19,17 @@ static TargetType parse_targetType(const std::string &name) {
     return target_last;
 }
 
+const char *msvcRuntimeTypeNames[msvc_last] = {"dynamic", "static"};
+
+static MsvcRuntimeType parse_msvcRuntimeType(const std::string &name) {
+    for (int i = 0; i < msvc_last; i++) {
+        if (name == msvcRuntimeTypeNames[i]) {
+            return static_cast<MsvcRuntimeType>(i);
+        }
+    }
+    return msvc_last;
+}
+
 using TomlBasicValue = toml::basic_value<toml::discard_comments, tsl::ordered_map, std::vector>;
 
 static std::string format_key_error(const std::string &error, const toml::key &ky, const TomlBasicValue &value) {
@@ -54,8 +63,10 @@ class TomlChecker {
     tsl::ordered_set<toml::key> m_conditionVisited;
 
   public:
-    TomlChecker(const TomlBasicValue &v, const toml::key &ky) : m_v(toml::find(v, ky)) {}
-    TomlChecker(const TomlBasicValue &v) : m_v(v) {}
+    TomlChecker(const TomlBasicValue &v, const toml::key &ky) : m_v(toml::find(v, ky)) {
+    }
+    TomlChecker(const TomlBasicValue &v) : m_v(v) {
+    }
     TomlChecker(const TomlChecker &) = delete;
     TomlChecker(TomlChecker &&) = delete;
 
@@ -109,9 +120,13 @@ class TomlChecker {
         return toml::find(m_v, ky);
     }
 
-    void visit(const toml::key &ky) { m_visited.emplace(ky); }
+    void visit(const toml::key &ky) {
+        m_visited.emplace(ky);
+    }
 
-    bool visisted(const toml::key &ky) const { return m_visited.contains(ky); }
+    bool visisted(const toml::key &ky) const {
+        return m_visited.contains(ky);
+    }
 
     void check(const tsl::ordered_map<std::string, std::string> &conditions) const {
         for (const auto &itr : m_v.as_table()) {
@@ -152,7 +167,8 @@ class TomlCheckerRoot {
     bool m_checked = false;
 
   public:
-    TomlCheckerRoot(const TomlBasicValue &root) : m_root(root) {}
+    TomlCheckerRoot(const TomlBasicValue &root) : m_root(root) {
+    }
     TomlCheckerRoot(const TomlCheckerRoot &) = delete;
     TomlCheckerRoot(TomlCheckerRoot &&) = delete;
 
@@ -185,7 +201,7 @@ class TomlCheckerRoot {
     }
 };
 
-Project::Project(const Project *parent, const std::string &path, bool build) {
+Project::Project(const Project *parent, const std::string &path, bool build) : parent(parent) {
     const auto toml_path = fs::path(path) / "cmake.toml";
     if (!fs::exists(toml_path)) {
         throw std::runtime_error("File not found '" + toml_path.string() + "'");
@@ -269,6 +285,21 @@ Project::Project(const Project *parent, const std::string &path, bool build) {
         project.optional("include-before", include_before);
         project.optional("include-after", include_after);
         project.optional("subdirs", project_subdirs);
+
+        std::string msvc_runtime;
+        project.optional("msvc-runtime", msvc_runtime);
+        if (!msvc_runtime.empty()) {
+            project_msvc_runtime = parse_msvcRuntimeType(msvc_runtime);
+            if (project_msvc_runtime == msvc_last) {
+                std::string error = "Unknown runtime '" + msvc_runtime + "'\n";
+                error += "Available types:\n";
+                for (std::string type_name : msvcRuntimeTypeNames) {
+                    error += "  - " + type_name + "\n";
+                }
+                error.pop_back(); // Remove last newline
+                throw std::runtime_error(format_key_error(error, msvc_runtime, project.find("msvc-runtime")));
+            }
+        }
     }
 
     if (checker.contains("subdir")) {
@@ -426,9 +457,12 @@ Project::Project(const Project *parent, const std::string &path, bool build) {
                     throw std::runtime_error(format_key_error("Unknown key '" + argItr.first + "'", argItr.first, argItr.second));
                 }
 
-                c.visit(argItr.first);
+                // Make sure not to emit keys like "condition" in the FetchContent call
+                if (!c.visisted(key)) {
+                    content.arguments.emplace(key, value);
+                }
 
-                content.arguments.emplace(key, value);
+                c.visit(argItr.first);
             }
             contents.emplace_back(std::move(content));
         }
@@ -477,9 +511,18 @@ Project::Project(const Project *parent, const std::string &path, bool build) {
             throw std::runtime_error(format_key_error(error, target.type_name, t.find("type")));
         }
 
-        t.optional("headers", target.headers);
         t.optional("sources", target.sources);
 
+        // Merge the headers into the sources
+        ConditionVector headers;
+        t.optional("headers", headers);
+        for (const auto &itr : headers) {
+            auto &dest = target.sources[itr.first];
+            for (const auto &jtr : itr.second) {
+                dest.push_back(jtr);
+            }
+        }
+
         t.optional("compile-definitions", target.compile_definitions);
         t.optional("private-compile-definitions", target.private_compile_definitions);
 
@@ -504,10 +547,32 @@ Project::Project(const Project *parent, const std::string &path, bool build) {
         t.optional("precompile-headers", target.precompile_headers);
         t.optional("private-precompile-headers", target.private_precompile_headers);
 
-        if (!target.headers.empty()) {
-            auto &sources = target.sources.nth(0).value();
-            const auto &headers = target.headers.nth(0)->second;
-            sources.insert(sources.end(), headers.begin(), headers.end());
+        Condition<std::string> msvc_runtime;
+        t.optional("msvc-runtime", msvc_runtime);
+        for (const auto &condItr : msvc_runtime) {
+            switch (parse_msvcRuntimeType(condItr.second)) {
+            case msvc_dynamic:
+                target.properties[condItr.first]["MSVC_RUNTIME_LIBRARY"] = "MultiThreaded$<$<CONFIG:Debug>:Debug>DLL";
+                break;
+            case msvc_static:
+                target.properties[condItr.first]["MSVC_RUNTIME_LIBRARY"] = "MultiThreaded$<$<CONFIG:Debug>:Debug>";
+                break;
+            default: {
+                std::string error = "Unknown runtime '" + condItr.second + "'\n";
+                error += "Available types:\n";
+                for (std::string type_name : msvcRuntimeTypeNames) {
+                    error += "  - " + type_name + "\n";
+                }
+                error.pop_back(); // Remove last newline
+                const TomlBasicValue *report;
+                if (condItr.first.empty()) {
+                    report = &t.find("msvc-runtime");
+                } else {
+                    report = &t.find(condItr.first).as_table().find("msvc-runtime").value();
+                }
+                throw std::runtime_error(format_key_error(error, condItr.second, *report));
+            }
+            }
         }
 
         t.optional("condition", target.condition);
@@ -616,6 +681,7 @@ Project::Project(const Project *parent, const std::string &path, bool build) {
             i.optional("configs", inst.configs);
             i.required("destination", inst.destination);
             i.optional("component", inst.component);
+            i.optional("optional", inst.optional);
             installs.push_back(inst);
         }
     }
@@ -624,6 +690,7 @@ Project::Project(const Project *parent, const std::string &path, bool build) {
         auto &v = checker.create(toml, "vcpkg");
         v.optional("url", vcpkg.url);
         v.optional("version", vcpkg.version);
+
         for (const auto &p : v.find("packages").as_array()) {
             Vcpkg::Package package;
             const auto &package_str = p.as_string().str;
@@ -649,6 +716,13 @@ Project::Project(const Project *parent, const std::string &path, bool build) {
     checker.check(conditions, true);
 }
 
+const Project *Project::root() const {
+    auto root = this;
+    while (root->parent != nullptr)
+        root = root->parent;
+    return root;
+}
+
 bool is_root_path(const std::string &path) {
     const auto toml_path = fs::path(path) / "cmake.toml";
     if (!fs::exists(toml_path)) {

tests/CMakeLists.txt

@@ -14,7 +14,7 @@ add_test(
 	WORKING_DIRECTORY
 		"${CMAKE_CURRENT_LIST_DIR}/basic"
 	COMMAND
-		$<TARGET_FILE:cmkr>
+		"$<TARGET_FILE:cmkr>"
 		build
 )
 
@@ -24,7 +24,7 @@ add_test(
 	WORKING_DIRECTORY
 		"${CMAKE_CURRENT_LIST_DIR}/interface"
 	COMMAND
-		$<TARGET_FILE:cmkr>
+		"$<TARGET_FILE:cmkr>"
 		build
 )
 
@@ -34,7 +34,7 @@ add_test(
 	WORKING_DIRECTORY
 		"${CMAKE_CURRENT_LIST_DIR}/fetch-content"
 	COMMAND
-		$<TARGET_FILE:cmkr>
+		"$<TARGET_FILE:cmkr>"
 		build
 )
 
@@ -44,7 +44,7 @@ add_test(
 	WORKING_DIRECTORY
 		"${CMAKE_CURRENT_LIST_DIR}/conditions"
 	COMMAND
-		$<TARGET_FILE:cmkr>
+		"$<TARGET_FILE:cmkr>"
 		build
 )
 
@@ -54,7 +54,7 @@ add_test(
 	WORKING_DIRECTORY
 		"${CMAKE_CURRENT_LIST_DIR}/vcpkg"
 	COMMAND
-		$<TARGET_FILE:cmkr>
+		"$<TARGET_FILE:cmkr>"
 		build
 )
 
@@ -64,7 +64,7 @@ add_test(
 	WORKING_DIRECTORY
 		"${CMAKE_CURRENT_LIST_DIR}/cxx-standard"
 	COMMAND
-		$<TARGET_FILE:cmkr>
+		"$<TARGET_FILE:cmkr>"
 		build
 )
 
@@ -74,7 +74,7 @@ add_test(
 	WORKING_DIRECTORY
 		"${CMAKE_CURRENT_LIST_DIR}/globbing"
 	COMMAND
-		$<TARGET_FILE:cmkr>
+		"$<TARGET_FILE:cmkr>"
 		build
 )
 
@@ -84,7 +84,19 @@ add_test(
 	WORKING_DIRECTORY
 		"${CMAKE_CURRENT_LIST_DIR}/templates"
 	COMMAND
-		$<TARGET_FILE:cmkr>
+		"$<TARGET_FILE:cmkr>"
 		build
 )
 
+if(MSVC) # msvc
+	add_test(
+		NAME
+			msvc-runtime
+		WORKING_DIRECTORY
+			"${CMAKE_CURRENT_LIST_DIR}/msvc-runtime"
+		COMMAND
+			"$<TARGET_FILE:cmkr>"
+			build
+	)
+
+endif()

tests/cmake.toml

@@ -45,3 +45,10 @@ name = "templates"
 working-directory = "templates"
 command = "$<TARGET_FILE:cmkr>"
 arguments = ["build"]
+
+[[test]]
+condition = "msvc"
+name = "msvc-runtime"
+working-directory = "msvc-runtime"
+command = "$<TARGET_FILE:cmkr>"
+arguments = ["build"]

tests/msvc-runtime/cmake.toml

@@ -0,0 +1,15 @@
+[project]
+name = "msvc-runtime"
+description = "Static MSVC runtime"
+msvc-runtime = "static"
+
+# This target will compile with a static runtime
+[target.static-runtime]
+type = "executable"
+sources = ["src/main.cpp"]
+
+# This target overrides the [project].msvc-runtime
+[target.dynamic-runtime]
+type = "executable"
+sources = ["src/main.cpp"]
+msvc-runtime = "dynamic"

tests/msvc-runtime/src/main.cpp

@@ -0,0 +1,5 @@
+#include <cstdio>
+
+int main() {
+    puts("Hello from cmkr(msvc-static)!");
+}