Check use_binary_from_path in ensure_bicep_installation

Author: shenglol

src/azure-cli/azure/cli/command_modules/resource/_bicep.py

@@ -108,6 +108,16 @@ def run_bicep_command(cli_ctx, args, auto_install=True, custom_env=None):
 
 
 def ensure_bicep_installation(cli_ctx, release_tag=None, target_platform=None, stdout=True):
+    if _use_binary_from_path(cli_ctx):
+        from shutil import which
+
+        if which("bicep") is None:
+            raise ValidationError(
+                'Could not find the "bicep" executable on PATH. To install Bicep via Azure CLI, set the "bicep.use_binary_from_path" configuration to False and run "az bicep install".'  # pylint: disable=line-too-long
+            )
+
+        return
+
     system = platform.system()
     machine = platform.machine()
     installation_path = _get_bicep_installation_path(system)

src/azure-cli/azure/cli/command_modules/resource/tests/latest/test_resource_bicep.py

@@ -163,6 +163,18 @@ def test_ensure_bicep_installation_skip_download_if_installed_version_matches_re
         ensure_bicep_installation(self.cli_ctx, release_tag="v0.1.0")
 
         dirname_mock.assert_not_called()
+            
+    @mock.patch("azure.cli.command_modules.resource._bicep._get_bicep_installation_path")
+    @mock.patch("shutil.which")
+    def test_ensure_bicep_installation_skip_download_if_use_binary_from_path_is_true(
+        self, which_stub, _get_bicep_installation_path_mock
+    ):
+        which_stub.return_value = True
+        self.cli_ctx.config.set_value("bicep", "use_binary_from_path", "true")
+
+        ensure_bicep_installation(self.cli_ctx, release_tag="v0.1.0")
+
+        _get_bicep_installation_path_mock.assert_not_called()
 
     def test_validate_target_scope_raise_error_if_target_scope_does_not_match_deployment_scope(self):
         with self.assertRaisesRegex(