change: --report-file, specify report file path, this has higher priority than specifying report dir.

httprunner/api.py

@@ -1,3 +1,4 @@
+import os
 import unittest
 
 from httprunner import (__version__, exceptions, loader, logger, parser,
@@ -27,6 +28,7 @@ class HttpRunner(object):
         self.test_loader = unittest.TestLoader()
         self.save_tests = save_tests
         self._summary = None
+        self.project_working_directory = None
 
     def _add_tests(self, testcases):
         """ initialize testcase with Runner() and add to test suite.
@@ -166,6 +168,8 @@ class HttpRunner(object):
         """ run testcase/testsuite data
         """
         project_mapping = tests_mapping.get("project_mapping", {})
+        self.project_working_directory = project_mapping.get("PWD", os.getcwd())
+
         if self.save_tests:
             utils.dump_logs(tests_mapping, project_mapping, "loaded")