Added dir. config for report, Updated README.md

Author: 4rjunc

README.md

@@ -50,7 +50,10 @@ myproject/module2.py      10      3       70%   func3, func4, <lambda>
 -------------------------------------------------------
 TOTAL                     17      8       47%   
 ```
-
+Also ```json``` option can be used with ```--func_cov_report```. To get the output in a JSON file
+```bash
+pytest --func_cov=myproject --func_cov_report=json
+```
 # Configuration
 A list of function name patterns to ignore can be specified in pytest.ini.
 
@@ -61,4 +64,12 @@ ignore_func_names =
     ^test_*
     ^myfunction$
 ```
-This will ignore all function names starting with "test_" and functions named "myfunction".
+This will ignore all function names starting with "test_" and functions named "myfunction".
+
+You can specify the directory to save the function coverage report.
+
+Example
+```ini
+[pytest]
+json_path = public
+```

pytest_func_cov/plugin.py

@@ -1,7 +1,6 @@
 import os
 import sys
 import json
-
 from .tracking import FunctionIndexer, get_full_function_name
 
 
@@ -35,6 +34,7 @@ def pytest_addoption(parser):
     )
 
     parser.addini("ignore_func_names", "function names to ignore", "linelist", [])
+    parser.addini("json_path", "path for saving json file", "linelist", []) 
 
 
 def pytest_load_initial_conftests(early_config, parser, args):
@@ -47,6 +47,7 @@ class FuncCovPlugin:
     def __init__(self, args):
         self.args = args
         self.indexer = FunctionIndexer(args.getini("ignore_func_names"))
+        self.json_path = args.getini("json_path")
 
     def pytest_sessionstart(self, session):
         """
@@ -153,14 +154,23 @@ def pytest_terminal_summary(self, terminalreporter):
             total_cover = 0
 
         args = ("TOTAL", total_funcs, total_miss, total_cover)
+
         if include_json:
             report_data = {
                 "total_funcs": total_funcs,
                 "total_miss": total_miss,
                 "total_cover": total_cover,
             }
-            with open("func_report.json", "w") as json_file:
-                json.dump(report_data, json_file, indent=4)
+
+            try:
+                file_path = os.path.join(self.json_path[0], "func_report.json")
+                os.makedirs(self.json_path[0], exist_ok=True)
+                with open(file_path, "w") as json_file:
+                    json.dump(report_data, json_file, indent=4)
+            except IndexError:
+                with open("func_report.json", "w") as json_file:
+                    json.dump(report_data, json_file, indent=4)
+
         if include_missing:
             args += ("",)
 

tests/test_tracking.py

@@ -99,7 +99,7 @@ def nested_package_directory():
     Returns
         Tuple[str, Tuple[Tuple[str, str], ...]]: First element is the absolute path
             to the created directory, and the second is a tuple of tuples, where the first
-            element is the absolute path to a .py file, and the second one is the name under 
+            element is the absolute path to a .py file, and the second one is the name under
             which is should be imported.
     """
     with tempfile.TemporaryDirectory() as package_folder: