Use different C++ build directories for debug/release and roundtrips

Author: Wumpf

docs/code-examples/roundtrips.py

@@ -56,6 +56,8 @@
 
 # fmt: on
 
+cpp_build_dir = "build/roundtrips"
+
 
 def run(
     args: list[str], *, env: dict[str, str] | None = None, timeout: int | None = None, cwd: str | None = None
@@ -119,7 +121,16 @@ def main() -> None:
         build_type = "Debug"
         if args.release:
             build_type = "Release"
-        configure_args = ["cmake", f"-DCMAKE_BUILD_TYPE={build_type}", "-DCMAKE_COMPILE_WARNING_AS_ERROR=ON", ".."]
+        configure_args = [
+            "cmake",
+            "-G",
+            "Ninja",
+            "-B",
+            cpp_build_dir,
+            f"-DCMAKE_BUILD_TYPE={build_type}",
+            "-DCMAKE_COMPILE_WARNING_AS_ERROR=ON",
+            "..",
+        ]
         run(
             configure_args,
             env=build_env,
@@ -299,15 +310,15 @@ def cmake_build(target: str, release: bool) -> None:
     build_process_args = [
         "cmake",
         "--build",
+        cpp_build_dir,
         ".",
-        "--config",
         config,
         "--target",
         target,
         "--parallel",
         str(multiprocessing.cpu_count()),
     ]
-    run(build_process_args, cwd="build")
+    run(build_process_args, cwd=cpp_build_dir)
 
 
 def run_comparison(rrd0_path: str, rrd1_path: str, full_dump: bool) -> None:

pixi.toml

@@ -48,31 +48,31 @@ py-test = { cmd = "python -m pytest -vv rerun_py/tests/unit", depends_on = [
 ] }
 
 # All the cpp-* tasks can be configured with environment variables, e.g.:  RERUN_WERROR=ON  CXX=clang++
-cpp-prepare-release = "cmake -G 'Ninja' -B build -S . -DCMAKE_BUILD_TYPE=Release"
-cpp-prepare = "cmake -G 'Ninja' -B build -S . -DCMAKE_BUILD_TYPE=Debug"
-cpp-build-all = { cmd = "cmake --build build --config Debug --target all", depends_on = [
+cpp-prepare-release = "cmake -G 'Ninja' -B build/release -S . -DCMAKE_BUILD_TYPE=Release"
+cpp-prepare = "cmake -G 'Ninja' -B build/debug -S . -DCMAKE_BUILD_TYPE=Debug"
+cpp-build-all = { cmd = "cmake --build build/debug --config Debug --target all", depends_on = [
   "cpp-prepare",
 ] }
 cpp-clean = "rm -rf build CMakeCache.txt CMakeFiles"
-cpp-build-tests = { cmd = "cmake --build build --config Debug --target rerun_sdk_tests", depends_on = [
+cpp-build-tests = { cmd = "cmake --build build/debug --config Debug --target rerun_sdk_tests", depends_on = [
   "cpp-prepare",
 ] }
-cpp-build-roundtrips = { cmd = "cmake --build build --config Debug --target roundtrips", depends_on = [
+cpp-build-roundtrips = { cmd = "cmake --build build/debug --config Debug --target roundtrips", depends_on = [
   "cpp-prepare",
 ] }
-cpp-build-examples = { cmd = "cmake --build build --config Debug --target examples", depends_on = [
+cpp-build-examples = { cmd = "cmake --build build/debug --config Debug --target examples", depends_on = [
   "cpp-prepare",
 ] }
-cpp-build-doc-examples = { cmd = "cmake --build build --config Debug --target doc_examples", depends_on = [
+cpp-build-doc-examples = { cmd = "cmake --build build/debug --config Debug --target doc_examples", depends_on = [
   "cpp-prepare",
 ] }
-cpp-build-log-benchmark = { cmd = "cmake --build build --config Release --target log_benchmark", depends_on = [
+cpp-build-log-benchmark = { cmd = "cmake --build build/release --config Release --target log_benchmark", depends_on = [
   "cpp-prepare-release",
 ] }
-cpp-test = { cmd = "export RERUN_STRICT=1 && ./build/rerun_cpp/tests/rerun_sdk_tests", depends_on = [
+cpp-test = { cmd = "export RERUN_STRICT=1 && ./build/debug/rerun_cpp/tests/rerun_sdk_tests", depends_on = [
   "cpp-build-tests",
 ] }
-cpp-log-benchmark = { cmd = "export RERUN_STRICT=1 && ./build/tests/cpp/log_benchmark/log_benchmark", depends_on = [
+cpp-log-benchmark = { cmd = "export RERUN_STRICT=1 && ./build/release/tests/cpp/log_benchmark/log_benchmark", depends_on = [
   "cpp-build-log-benchmark",
 ] }
 cpp-build-and-test-all = { depends_on = ["cpp-build-all", "cpp-test"] }

tests/cpp/log_benchmark/main.cpp

@@ -25,7 +25,7 @@
 // For better whole-executable timing capture you can also first build the executable and then run:
 // ```
 // pixi run cpp-build-log-benchmark
-// ./build/tests/cpp/log_benchmark/log_benchmark
+// ./build/release/tests/cpp/log_benchmark/log_benchmark
 // ```
 //
 

tests/roundtrips.py

@@ -28,6 +28,8 @@
     "time_series_scalar": ["cpp", "py", "rust"],  # Don't need it, API example roundtrips cover it all
 }
 
+cpp_build_dir = "build/roundtrips"
+
 
 def run(
     args: list[str], *, env: dict[str, str] | None = None, timeout: int | None = None, cwd: str | None = None
@@ -84,7 +86,16 @@ def main() -> None:
         build_type = "Debug"
         if args.release:
             build_type = "Release"
-        configure_args = ["cmake", f"-DCMAKE_BUILD_TYPE={build_type}", "-DCMAKE_COMPILE_WARNING_AS_ERROR=ON", ".."]
+        configure_args = [
+            "cmake",
+            "-G",
+            "Ninja",
+            "-B",
+            cpp_build_dir,
+            f"-DCMAKE_BUILD_TYPE={build_type}",
+            "-DCMAKE_COMPILE_WARNING_AS_ERROR=ON",
+            "..",
+        ]
         run(
             configure_args,
             env=build_env,
@@ -248,7 +259,7 @@ def cmake_build(target: str, release: bool) -> None:
         "--parallel",
         str(multiprocessing.cpu_count()),
     ]
-    run(build_process_args, cwd="build")
+    run(build_process_args, cwd=cpp_build_dir)
 
 
 def run_comparison(rrd0_path: str, rrd1_path: str, full_dump: bool) -> None: