external_project: Log configure command

mesonbuild/modules/unstable_external_project.py

@@ -162,10 +162,14 @@ class ExternalProject(InterpreterObject):
 
     def _run(self, step: str, command: T.List[str]):
         mlog.log('External project {}:'.format(self.name), mlog.bold(step))
+        m = 'Running command: ' + str(command)
         log_filename = Path(mlog.log_dir, '{}-{}.log'.format(self.name, step))
         output = None
         if not self.verbose:
             output = open(log_filename, 'w')
+            output.write(m + '\n')
+        else:
+            mlog.log(m)
         p, o, e = Popen_safe(command, cwd=str(self.build_dir), env=self.run_env,
                                       stderr=subprocess.STDOUT,
                                       stdout=output)