Fix ocaml build

.docker/ml.Dockerfile

@@ -1,14 +1,16 @@
-FROM gcc:8.5.0
+FROM ubuntu:24.04
 
-ENV OCAML_VERSION 4.01.0
+ENV OCAML_VERSION 4.05.0
 
-RUN apt update && apt upgrade -y && apt install -y --force-yes make
+RUN apt update && apt upgrade -y && apt install -y --force-yes opam
 
-RUN wget https://github.com/ocaml/ocaml/archive/refs/tags/${OCAML_VERSION}.zip
-RUN unzip ${OCAML_VERSION}.zip
-RUN cd ocaml-${OCAML_VERSION} && ./configure && make world.opt && make install
+RUN opam init --disable-sandboxing
+RUN opam update
 
-RUN mkdir /code
+RUN opam install -y ocaml=${OCAML_VERSION}
+RUN opam switch create ${OCAML_VERSION}
+
+RUN mkdir code
 WORKDIR /code
 
 CMD /code/scripts/docker/run-ml.sh

Makefile

@@ -46,6 +46,7 @@ SUPPORTED_LANGUAGES = \
 	$(JAVA) \
 	$(JS) \
 	$(LUA) \
+	$(ML) \
 	$(PHP) \
 	$(PY) \
 	$(R) \
@@ -54,7 +55,6 @@ SUPPORTED_LANGUAGES = \
 	$(SCALA) \
 	$(SQL) \
 	$(TS)
-# $(ML)
 # $(PAS)
 
 ifdef LANGUAGES

scripts/docker/run-ml.sh

@@ -9,20 +9,24 @@ echo
 for folder in ${FOLDERS}; do
     [[ -f "${folder}WRONG" ]] && continue
 
-    if [[ "$(find "${folder}" -name '*.ml' | wc -l)" -eq 1 ]]; then
+    rm -rf "${folder}main.ml" 2> /dev/null
+
+    if [[ "$(find "${folder}" -name '*.ml' | wc -l)" -ge 1 ]]; then
         echo "${folder}"
         cd "${folder}" || exit 1
 
+        rm -rf "${folder}main.ml" 2> /dev/null
+
         cp ./*.ml main.ml
-        ocamlc -o ml.out main.ml
+        ocamlc -o ml main.ml
 
         if [[ -f in.txt ]]; then
-            ./ml.out < in.txt > result-ml.txt
+            ./ml < in.txt > result-ml.txt
         else
-            ./ml.out > result-ml.txt
+            ./ml > result-ml.txt
         fi
 
-        rm -rf ml.out main.ml main.cmi main.cmo
+        rm -rf ml main.ml main.cmi main.cmo
 
         diff result-ml.txt out.txt