fix(ci): 1st step to migrate the formatting / license check to the new pipeline env

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

ci-scripts/docker/Dockerfile.formatting.bionic

@@ -0,0 +1,25 @@
+FROM ubuntu:bionic AS oai-formatting-check
+
+ARG MERGE_REQUEST
+ARG SRC_BRANCH
+ARG TARGET_BRANCH
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get upgrade --yes && \
+    DEBIAN_FRONTEND=noninteractive apt-get install --yes \
+       astyle \
+       gawk \
+       git
+
+WORKDIR /oai-ran
+COPY . .
+
+RUN /bin/bash -c "if [[ -v MERGE_REQUEST ]]; then echo 'Source Branch = $SRC_BRANCH'; echo 'Target Branch = $TARGET_BRANCH'; else echo 'Push to develop'; fi"
+RUN /bin/bash -c "if [[ -v MERGE_REQUEST ]]; then ./ci-scripts/checkCodingFormattingRules.sh --src-branch $SRC_BRANCH --target-branch $TARGET_BRANCH; else ./ci-scripts/checkCodingFormattingRules.sh; fi" && \
+   ls -lst *.txt && \
+   cat *.txt
+
+#RUN ./ci-scripts/checkCodingFormattingRules.sh && \
+#    ls -lst *.txt
+#