Combine Docker RUN statements to decrease image sizes

docker/bbpPairings.Dockerfile

@@ -1,7 +1,10 @@
 FROM ubuntu:focal
 
 RUN apt-get update && \
-    apt-get install --yes git make g++ && \
-    apt-get clean
+    apt-get install --yes \
+        g++ \
+        git \
+        make \
+    && apt-get clean
 
 WORKDIR /mnt

docker/ci.Dockerfile

@@ -4,13 +4,18 @@ FROM node:22-bookworm AS node
 COPY repos/lila /lila
 COPY conf/ci.conf /lila/conf/application.conf
 ENV COREPACK_ENABLE_DOWNLOAD_PROMPT=0
-RUN corepack enable
-RUN /lila/ui/build --clean-build --debug
+RUN corepack enable \
+    && /lila/ui/build --clean-build --debug
 
 ##################################################################################
 FROM mongo:7-jammy AS dbbuilder
 
-RUN apt update && apt install -y python3-pip python3-venv curl && apt clean
+RUN apt update \
+    && apt install -y \
+        curl \
+        python3-pip \
+        python3-venv \
+    && apt clean
 
 ENV JAVA_HOME=/opt/java/openjdk
 COPY --from=eclipse-temurin:21-jdk $JAVA_HOME $JAVA_HOME
@@ -19,9 +24,9 @@ ENV PATH="${JAVA_HOME}/bin:${PATH}"
 COPY repos/lila-db-seed /lila-db-seed
 WORKDIR /lila-db-seed
 
-RUN mkdir /seeded
-RUN mongod --fork --logpath /var/log/mongodb/mongod.log --dbpath /seeded \
- && ./spamdb/spamdb.py \
+RUN mkdir /seeded \
+    && mongod --fork --logpath /var/log/mongodb/mongod.log --dbpath /seeded \
+    && ./spamdb/spamdb.py \
         --drop-db \
         --password=password \
         --su-password=password \
@@ -46,8 +51,13 @@ RUN ./lila.sh stage
 ##################################################################################
 FROM mongo:7-jammy
 
-RUN apt update && apt install -y curl redis python3-pip && apt clean
-RUN pip3 install berserk pytest
+RUN apt update \
+    && apt install -y \
+        curl \
+        python3-pip \
+        redis \
+    && apt clean \
+    && pip3 install berserk pytest
 
 COPY --from=dbbuilder /seeded /seeded
 COPY --from=lilawsbuilder /lila-ws/target /lila-ws/target

docker/python.Dockerfile

@@ -2,7 +2,11 @@ FROM eclipse-temurin:22.0.2_9-jdk-alpine
 
 COPY --from=python:3.12.6-alpine3.20 / /
 
-RUN pip install --upgrade pip
-RUN pip install berserk pymongo requests termcolor
+RUN pip install --upgrade pip \
+    && pip install \
+        berserk \
+        pymongo \
+        requests \
+        termcolor
 
 WORKDIR /lila-db-seed

docker/ui.Dockerfile

@@ -1,22 +1,20 @@
 FROM node:22.9.0-bookworm-slim
 
 USER root
-
-RUN apt update && apt install -y git && apt clean
-
-RUN git config --global --add safe.directory /chessground
-RUN git config --global --add safe.directory /lila
-RUN git config --global --add safe.directory /pgn-viewer
-
 ENV COREPACK_ENABLE_DOWNLOAD_PROMPT=0
-RUN corepack enable
-
-RUN pnpm config set store-dir /.pnpm-store
 
-# needed for ui, chessground images
-RUN mkdir -p /.cache && chmod -R 777 /.cache
-# needed for api_docs
-RUN mkdir -p /.npm && chmod -R 777 /.npm
+RUN apt update \
+    && apt install -y git \
+    && apt clean \
+    && git config --global --add safe.directory /chessground \
+    && git config --global --add safe.directory /lila \
+    && git config --global --add safe.directory /pgn-viewer \
+    && corepack enable \
+    && pnpm config set store-dir /.pnpm-store \
+    # needed for ui, chessground images
+    && mkdir -p /.cache && chmod -R 777 /.cache \
+    # needed for api_docs
+    && mkdir -p /.npm && chmod -R 777 /.npm
 
 ARG USER_ID
 ARG GROUP_ID