getdeps: add --build-type option to build in Debug or RelWithDebInfo mode

Summary:
X-link: https://github.com/facebookincubator/zstrong/pull/653

getdeps: add --build-type option to build in Debug or RelWithDebInfo mode

Adds a --build-type option so one can force RelWithDebInfo or Debug explicity

Default remains RelWithDebInfo for cmake.

cargo default is updated to --release to match cmake more closely, if you don't want release use --build-type Debug.

If you want to run github CI in Debug mode (faster build, but tests will run slower), then can pass --build-type Debug to getdeps.py generate-github-actions

X-link: https://github.com/facebook/sapling/pull/786

Reviewed By: mitrandir77

Differential Revision: D51564770

Pulled By: bigfootjon

fbshipit-source-id: ef30332ca193d9805bce005d12b5dbc9f58fcafc

build/fbcode_builder/getdeps/buildopts.py

@@ -52,6 +52,7 @@ class BuildOptions(object):
         shared_libs: bool = False,
         facebook_internal=None,
         free_up_disk: bool = False,
+        build_type: Optional[str] = None,
     ) -> None:
         """fbcode_builder_dir - the path to either the in-fbsource fbcode_builder dir,
                              or for shipit-transformed repos, the build dir that
@@ -67,6 +68,7 @@ class BuildOptions(object):
         vcvars_path - Path to external VS toolchain's vsvarsall.bat
         shared_libs - whether to build shared libraries
         free_up_disk - take extra actions to save runner disk space
+        build_type - CMAKE_BUILD_TYPE, used by cmake and cargo builders
         """
 
         if not install_dir:
@@ -107,6 +109,11 @@ class BuildOptions(object):
         self.shared_libs = shared_libs
         self.free_up_disk = free_up_disk
 
+        if build_type is None:
+            build_type = "RelWithDebInfo"
+
+        self.build_type = build_type
+
         lib_path = None
         if self.is_darwin():
             lib_path = "DYLD_LIBRARY_PATH"
@@ -606,6 +613,7 @@ def setup_build_options(args, host_type=None) -> BuildOptions:
             "lfs_path",
             "shared_libs",
             "free_up_disk",
+            "build_type",
         }
     }