impl: explicit config in BazelTools

`options` param of from `build` method is removed.
`config` can be explicitly set using `BazelTools` constructor.

Author: arkjedrz

testing_utils/build_tools.py

@@ -265,7 +265,13 @@ class BazelTools(BuildTools):
     Utilities for interacting with Bazel.
     """
 
-    def __init__(self, option_prefix: str = "", command_timeout: float = 10.0, build_timeout: float = 180.0) -> None:
+    def __init__(
+        self,
+        option_prefix: str = "",
+        config: str = "",
+        command_timeout: float = 10.0,
+        build_timeout: float = 180.0,
+    ) -> None:
         """
         Create Bazel tools instance.
 
@@ -275,12 +281,16 @@ def __init__(self, option_prefix: str = "", command_timeout: float = 10.0, build
             Prefix for options expected by 'select_target_path'.
             - '' will expect '--target-path' and '--target-name'.
             - 'cpp' will expect '--cpp-target-path' and '--cpp-target-name'.
+        config : str
+            Explicitly define config used by Bazel commands.
+            E.g., "per-x86_64-linux" adds "--config=per-x86_64-linux".
         command_timeout : float
             Common command timeout in seconds.
         build_timeout : float
             "bazel build" timeout in seconds.
         """
         super().__init__(option_prefix, command_timeout, build_timeout)
+        self.config = config
 
     def query(self, query: str = "//...") -> list[str]:
         """
@@ -326,11 +336,13 @@ def find_target_path(self, target_name: str, *, expect_exists: bool = True) -> P
         ws_path = Path(ws_str)
 
         # Find executable path relative to workspace root path.
+        config = f'--config={self.config}' if self.config else ""
         command = [
             "bazel",
             "cquery",
             "--output=starlark",
             "--starlark:expr=target.files_to_run.executable.path",
+            config,
             target_name,
         ]
         logger.debug(f"Running Bazel cquery command: `{' '.join(command)}`")
@@ -348,7 +360,7 @@ def find_target_path(self, target_name: str, *, expect_exists: bool = True) -> P
         logger.debug(f"Found target path: {target_path}")
         return target_path
 
-    def build(self, target_name: str, *options) -> Path:
+    def build(self, target_name: str) -> Path:
         """
         Run build for selected target.
 
@@ -358,7 +370,8 @@ def build(self, target_name: str, *options) -> Path:
             Name of the target to build.
         """
         # Run build.
-        command = ["bazel", "build", target_name, *options]
+        config = f'--config={self.config}' if self.config else ""
+        command = ["bazel", "build", config, target_name]
         logger.debug(f"Running Bazel build command: `{' '.join(command)}`")
         with Popen(command, text=True) as p:
             _, _ = p.communicate(timeout=self.build_timeout)