Add Ruby support

Author: wxh06

README.md

@@ -34,7 +34,8 @@
 - [Python](https://www.python.org/)
   - [CPython](https://www.python.org/downloads/)
   - [PyPy](https://www.pypy.org/)
-
+- [Ruby](https://www.ruby-lang.org/en/)
+  - [`ruby`](https://www.ruby-lang.org/en/downloads/)
 
 ## Installation
 ### From the [Python Package Index (PyPI)](https://pypi.org/)
@@ -296,6 +297,14 @@ sudo make install  # python3 setup.py install
     ],
     b'No syntax errors detected in index.php\n'
 ]
+>>>
+>>> judge(Ruby(), b'print "Hello, world!";', [(b'', b'Hello, world!')])  # Ruby
+[
+    [
+        (<Status.AC: 'Accepted'>, (b'Hello, world!', b''), 0.05)
+    ],
+    b'Syntax OK\n'
+]
 ```
 
 

README.zh_Hans_CN.md

@@ -34,6 +34,8 @@
 - [Python](https://www.python.org/)
   - [CPython](https://www.python.org/downloads/)
   - [PyPy](https://www.pypy.org/)
+- [Ruby](https://www.ruby-lang.org/zh_cn/)
+  - [`ruby`](https://www.ruby-lang.org/zh_cn/downloads/)
 
 
 ## 安装
@@ -296,6 +298,14 @@ sudo make install  # python3 setup.py install
     ],
     b'No syntax errors detected in index.php\n'
 ]
+>>>
+>>> judge(Ruby(), b'print "Hello, world!";', [(b'', b'Hello, world!')])  # Ruby
+[
+    [
+        (<Status.AC: 'Accepted'>, (b'Hello, world!', b''), 0.05)
+    ],
+    b'Syntax OK\n'
+]
 ```
 
 

dockerjudge/processor.py

@@ -182,3 +182,13 @@ def __init__(self, version=None):
         self.source = '__init__.py'
         self.compile = ['python', '-m', 'compileall', '.']
         self.judge = f'python {self.source}'
+
+
+class Ruby(Processor):
+    'Ruby'
+
+    def __init__(self, version=None):
+        self.image = self._get_image_with_tag('ruby', version)
+        self.source = 'ruby.rb'
+        self.compile = ['ruby', '-wc', self.source]
+        self.judge = f'ruby {self.source}'

test_dockerjudge.py

@@ -6,7 +6,7 @@
 
 from dockerjudge import judge
 from dockerjudge.processor import (Bash, Clang, GCC, Go, Node, OpenJDK,
-                                   PHP, PyPy, Python)
+                                   PHP, PyPy, Python, Ruby)
 from dockerjudge.status import Status
 
 
@@ -386,5 +386,16 @@ def test_php(self):
         self.assertEqual(result[0][0][0], Status.AC)
 
 
+class TestRuby(unittest.TestCase):
+
+    def test_ruby(self):
+        result = judge(
+            Ruby(),
+            b'print "Hello, world!";',
+            [(b'', b'Hello, world!')]
+        )
+        self.assertEqual(result[0][0][0], Status.AC)
+
+
 if __name__ == '__main__':
     unittest.main()