Support CRATE_TYPES argument for corrosion_import_crate

README.md

@@ -194,6 +194,8 @@ corrosion_import_crate(MANIFEST_PATH <path/to/cargo.toml>
         [NO_STD]
         # Specify  cargo build profile (e.g. release or a custom profile)
         [PROFILE <cargo-profile>]
+        # Build only the specified crate types (Ignored with CMake < 3.19)
+        [CRATE_TYPES <crate_type1> ... <crate_typeN>]
         # Only import the specified crates from a workspace
         [CRATES <crate1> ... <crateN>]
         # Enable the specified features

cmake/Corrosion.cmake

@@ -1045,7 +1045,7 @@ endfunction()
 function(corrosion_import_crate)
     set(OPTIONS ALL_FEATURES NO_DEFAULT_FEATURES NO_STD)
     set(ONE_VALUE_KEYWORDS MANIFEST_PATH PROFILE)
-    set(MULTI_VALUE_KEYWORDS CRATES FEATURES FLAGS)
+    set(MULTI_VALUE_KEYWORDS CRATE_TYPES CRATES FEATURES FLAGS)
     cmake_parse_arguments(COR "${OPTIONS}" "${ONE_VALUE_KEYWORDS}" "${MULTI_VALUE_KEYWORDS}" ${ARGN})
 
     if (NOT DEFINED COR_MANIFEST_PATH)
@@ -1122,6 +1122,8 @@ function(corrosion_import_crate)
                 "${COR_MANIFEST_PATH}"
             CRATES
                 "${COR_CRATES}"
+            CRATE_TYPES
+                "${COR_CRATE_TYPES}"
             PROFILE
                 "${COR_PROFILE}"
         )

cmake/CorrosionGenerator.cmake

@@ -23,7 +23,7 @@ function(_cargo_metadata out manifest)
 endfunction()
 
 # Add targets (crates) of one package
-function(_generator_add_package_targets workspace_manifest_path package_manifest_path package_name targets profile out_created_targets)
+function(_generator_add_package_targets workspace_manifest_path package_manifest_path package_name targets profile out_created_targets crate_types)
     # target types
     set(has_staticlib FALSE)
     set(has_cdylib FALSE)
@@ -52,7 +52,9 @@ function(_generator_add_package_targets workspace_manifest_path package_manifest
         set(kinds)
         foreach(ix RANGE ${target_kind_len-1})
             string(JSON kind GET "${target_kind}" ${ix})
-            list(APPEND kinds ${kind})
+            if(NOT crate_types OR ${kind} IN_LIST crate_types)
+                list(APPEND kinds ${kind})
+            endif()
         endforeach()
 
         if(TARGET "${target_name}"
@@ -163,7 +165,7 @@ endfunction()
 function(_generator_add_cargo_targets)
     set(options "")
     set(one_value_args MANIFEST_PATH PROFILE)
-    set(multi_value_args CRATES)
+    set(multi_value_args CRATES CRATE_TYPES)
     cmake_parse_arguments(
         GGC
         "${options}"
@@ -197,7 +199,7 @@ function(_generator_add_cargo_targets)
             if(ws_mem STREQUAL pkg_id AND ((NOT GGC_CRATES) OR (pkg_name IN_LIST GGC_CRATES)))
                 message(DEBUG "Found ${targets_len} targets in package ${pkg_name}")
 
-                _generator_add_package_targets("${GGC_MANIFEST_PATH}" "${pkg_manifest_path}" "${pkg_name}" "${targets}" "${GGC_PROFILE}" curr_created_targets)
+                _generator_add_package_targets("${GGC_MANIFEST_PATH}" "${pkg_manifest_path}" "${pkg_name}" "${targets}" "${GGC_PROFILE}" curr_created_targets "${GGC_CRATE_TYPES}")
                 list(APPEND created_targets "${curr_created_targets}")
             endif()
         endforeach()

test/CMakeLists.txt

@@ -113,6 +113,10 @@ endfunction()
 # Please keep this in alphabetical order.
 add_subdirectory(cargo_flags)
 add_subdirectory(cpp2rust)
+if(Rust_VERSION VERSION_GREATER_EQUAL "1.64.0")
+    # Flag `--crate-type` is only supported since Rust 1.64.0
+    add_subdirectory(crate_type)
+endif()
 add_subdirectory(custom_profiles)
 add_subdirectory(cxxbridge)
 add_subdirectory(envvar)

test/crate_type/CMakeLists.txt

@@ -0,0 +1,6 @@
+corrosion_tests_add_test(crate_type "cpp-exe")
+
+
+set_tests_properties("crate_type_run_cpp-exe" PROPERTIES PASS_REGULAR_EXPRESSION
+        "Hello from lib 1!\r?\nHello from lib 2!"
+        )

test/crate_type/crate_type/CMakeLists.txt

@@ -0,0 +1,11 @@
+cmake_minimum_required(VERSION 3.15)
+project(test_project VERSION 0.1.0)
+include(../../test_header.cmake)
+
+# Add --crate-type to ensure that only the specified type of library is built and no error is thrown
+corrosion_import_crate(MANIFEST_PATH proj1/Cargo.toml CRATE_TYPES staticlib FLAGS --crate-type=staticlib)
+corrosion_import_crate(MANIFEST_PATH proj2/Cargo.toml CRATE_TYPES cdylib FLAGS --crate-type=cdylib)
+
+add_executable(cpp-exe main.cpp)
+target_link_libraries(cpp-exe proj1)
+target_link_libraries(cpp-exe proj2)

test/crate_type/crate_type/main.cpp

@@ -0,0 +1,8 @@
+extern "C" void rust_function1();
+extern "C" void rust_function2();
+
+int main() {
+    rust_function1();
+    rust_function2();
+    return 0;
+}

test/crate_type/crate_type/proj1/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "proj1"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
+
+[lib]
+crate-type=["staticlib", "cdylib"]
+

test/crate_type/crate_type/proj1/src/lib.rs

@@ -0,0 +1,4 @@
+#[no_mangle]
+pub extern "C" fn rust_function1() {
+    println!("Hello from lib 1!");
+}

test/crate_type/crate_type/proj2/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "proj2"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
+
+[lib]
+crate-type=["staticlib", "cdylib"]

test/crate_type/crate_type/proj2/src/lib.rs

@@ -0,0 +1,4 @@
+#[no_mangle]
+pub extern "C" fn rust_function2() {
+    println!("Hello from lib 2!");
+}