Bachmann1234#378 Add shell=True to check for program existence

diff_cover/command_runner.py

@@ -51,7 +51,7 @@ def run_command_for_code(command):
     """
     Returns command's exit code.
     """
-    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
     process.communicate()
     return process.returncode
 

diff_cover/violationsreporters/base.py

@@ -245,3 +245,32 @@ def installed(self):
         Returns: boolean True if installed
         """
         return run_command_for_code(self.command_to_check_install) == 0
+
+
+class JsonBasedDriver(QualityDriver):
+        def __init__(
+        self,
+        name,
+        supported_extensions,
+        command,
+        expression,
+        command_to_check_install,
+        flags=0,
+        exit_codes=None,
+    ):
+        """
+        args:
+            expression: regex used to parse report, will be fed lines singly
+                        unless flags contain re.MULTILINE
+            flags: such as re.MULTILINE
+        See super for other args
+            command_to_check_install: (list[str]) command to run
+            to see if the tool is installed
+        """
+
+    def installed(self):
+        """
+        Method checks if the provided tool is installed.
+        Returns: boolean True if installed
+        """
+        return run_command_for_code(self.command_to_check_install) == 0