add support for julia (julialang.org)

this is experimental-only, since julia uses too much memory!

Author: iceboy233

Dockerfile

@@ -17,7 +17,8 @@ RUN apt-get update && \
             golang \
             ruby \
             mono-runtime \
-            mono-mcs && \
+            mono-mcs \
+            axel && \
     python3 -m venv /venv && \
     bash -c "source /venv/bin/activate && \
              pip install -r /tmp/jd4/requirements.txt && \
@@ -27,6 +28,9 @@ RUN apt-get update && \
     rm -rf /var/lib/apt/lists/* && \
     mkdir -p /root/.config/jd4 && \
     cp /tmp/jd4/examples/langs.yaml /root/.config/jd4/langs.yaml && \
-    rm -rf /tmp/jd4
+    rm -rf /tmp/jd4 && \
+    axel https://julialang-s3.julialang.org/bin/linux/x64/1.0/julia-1.0.0-linux-x86_64.tar.gz && \
+    tar xf julia-1.0.0-linux-x86_64.tar.gz --strip-components=1 -C /usr && \
+    rm julia-1.0.0-linux-x86_64.tar.gz
 CMD bash -c "source /venv/bin/activate && \
              python3 -m jd4.daemon"

examples/langs.yaml

@@ -79,3 +79,8 @@ cs:
     code_file: foo.cs
     execute_file: /usr/bin/mono
     execute_args: mono foo.exe
+jl:
+    type: interpreter
+    code_file: foo.jl
+    execute_file: /usr/bin/julia
+    execute_args: julia foo.jl

jd4/case.py

@@ -246,10 +246,10 @@ def read_legacy_cases(config, open):
     num_cases = int(config.readline())
     for line in islice(csv.reader(config, delimiter='|'), num_cases):
         input, output, time_str, score_str = line[:4]
-        try:
-            memory_bytes = int(float(line[4]) * 1024)
-        except (IndexError, ValueError):
-            memory_bytes = DEFAULT_MEMORY_BYTES
+        #try:
+        #    memory_bytes = int(float(line[4]) * 1024)
+        #except (IndexError, ValueError):
+        memory_bytes = DEFAULT_MEMORY_BYTES
         yield DefaultCase(partial(open, path.join('input', input)),
                           partial(open, path.join('output', output)),
                           int(float(time_str) * 1000000000),

jd4/integration_test.py

@@ -125,6 +125,9 @@ class Program {
     }
 }""")
 
+    def test_jl(self):
+        self.do_lang('jl', b'println(sum(parse(Int, x) for x in split(readline())))')
+
 class StatusTest(TestCase):
     @classmethod
     def setUpClass(cls):