added bash stdio evaluator

1 files changed, 44 insertions, 0 deletions

diff --git a/yaksh/bash_stdio_evaluator.py b/yaksh/bash_stdio_evaluator.py
new file mode 100644
index 0000000..25f35a1
--- /dev/null
+++ b/yaksh/bash_stdio_evaluator.py
@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+import subprocess
+import os
+from os.path import isfile
+
+#local imports
+from code_evaluator import CodeEvaluator
+from stdio_evaluator import Evaluator
+
+
+class BashStdioEvaluator(CodeEvaluator):
+    """Evaluates Bash StdIO based code"""
+
+    def setup(self):
+        super(BashStdioEvaluator, self).setup()
+        self.submit_code_path = self.create_submit_code_file('Test.sh')
+
+    def teardown(self):
+        super(BashStdioEvaluator, self).teardown()
+        os.remove(self.submit_code_path)
+
+    def compile_code(self, user_answer, expected_input, expected_output):
+        if not isfile(self.submit_code_path):
+            msg = "No file at %s or Incorrect path" % self.submit_code_path
+            return False, msg
+        user_code_directory = os.getcwd() + '/'
+        user_answer = user_answer.replace("\r", "")
+        self.write_to_submit_code_file(self.submit_code_path, user_answer)
+
+    def check_code(self, user_answer, expected_input, expected_output):
+        success = False
+        expected_input = str(expected_input).replace('\r', '')
+        proc = subprocess.Popen(["bash ./Test.sh"],
+                                shell=True,
+                                stdin=subprocess.PIPE,
+                                stdout=subprocess.PIPE,
+                                stderr=subprocess.PIPE
+                                )
+        evaluator = Evaluator()
+        success, err = evaluator.evaluate(user_answer, proc,
+                                          expected_input,
+                                          expected_output
+                                          )
+        return success, err