Merge pull request #281 from objectionary/264

multi-stage docker setup

Author: yegor256

src/main/java/org/eolang/hone/OptimizeMojo.java

@@ -129,6 +129,15 @@ public final class OptimizeMojo extends AbstractMojo {
     @Parameter(property = "hone.grep-in", defaultValue = ".*")
     private String grepIn;
 
+    /**
+     * Print all commands of all Bash scripts.
+     *
+     * @since 0.11.0
+     * @checkstyle MemberNameCheck (6 lines)
+     */
+    @Parameter(property = "hone.debug", defaultValue = "false")
+    private boolean debug;
+
     /**
      * Small steps or big steps?
      *
@@ -198,6 +207,8 @@ public final class OptimizeMojo extends AbstractMojo {
      * @since 0.1.0
      * @checkstyle MemberNameCheck (7 lines)
      * @checkstyle VisibilityModifierCheck (10 lines)
+     * @checkstyle JavaNCSSCheck (500 lines)
+     * @checkstyle MethodLengthCheck (500 lines)
      */
     @Parameter(property = "hone.cache")
     @SuppressWarnings("PMD.ImmutableField")
@@ -300,6 +311,11 @@ public void exec() throws IOException {
                 "--env", String.format("VERBOSE=%s", Logger.isDebugEnabled(this))
             )
         );
+        command.addAll(
+            Arrays.asList(
+                "--env", String.format("DEBUG=%s", this.debug)
+            )
+        );
         command.addAll(
             Arrays.asList(
                 "--env", String.format("GREP_IN=%s", this.grepIn)

src/main/resources/org/eolang/hone/scaffolding/Dockerfile

@@ -1,110 +1,100 @@
 # SPDX-FileCopyrightText: Copyright (c) 2024-2025 Objectionary.com
 # SPDX-License-Identifier: MIT
 
-FROM ubuntu:24.04
+FROM ubuntu:24.04 AS builder
 
-LABEL "repository"="https://github.com/objectionary/hone-maven-plugin"
-LABEL "maintainer"="Yegor Bugayenko"
-LABEL "version"="0.0.0"
+SHELL ["/bin/bash", "-e", "-c", "-o", "pipefail"]
 
 ENV DEBIAN_FRONTEND=noninteractive
-
-WORKDIR /hone
-
-# To use UTF-8 locale:
 ENV LC_ALL=en_US.UTF-8
 ENV LANG=en_US.UTF-8
 ENV LANGUAGE=en_US.UTF-8
-RUN apt-get update && apt-get install --yes --no-install-recommends locales=* \
-  && sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen \
-  && locale-gen \
-  && update-locale LANG=en_US.UTF-8 \
-  && printf 'LC_ALL=en_US.UTF-8\nLANG=en_US.UTF-8\nLANGUAGE=en_US.UTF-8\n' > /etc/default/locale \
-  && printf 'export LC_ALL=en_US.UTF-8\n' >> "${HOME}/.profile" \
-  && printf 'export LANG=en_US.UTF-8\n' >> "${HOME}/.profile" \
-  && printf 'export LANGUAGE=en_US.UTF-8\n' >> "${HOME}/.profile" \
-  && apt-get clean \
-  && rm -rf /var/lib/apt/lists/*
 
-# Install system dependencies:
-RUN apt-get update \
-  && apt-get install --yes --no-install-recommends \
+RUN apt-get update && apt-get install --yes --no-install-recommends \
+    locales=* \
     build-essential=* \
     ca-certificates=* \
     curl=* \
-    wget=* \
     gnupg2=* \
     libgmp-dev=* \
-    libxml2-utils=* \
     lsb-release=* \
-    openssl=* \
     software-properties-common=* \
-    tree=* \
-    unzip=* \
     zlib1g-dev=* \
+  && sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen \
+  && locale-gen \
+  && update-locale LANG=en_US.UTF-8 \
   && apt-get clean \
   && rm -rf /var/lib/apt/lists/*
 
-# Istall Java:
-ENV JAVA_OPTS=-Xmx1g
-ENV JAVA_VERSION=17
-ENV JAVA_HOME=/usr/lib/jvm/java-${JAVA_VERSION}
-RUN apt-get --yes --fix-missing update \
-  && apt-get --yes --no-install-recommends install ca-certificates-java=* ca-certificates=* "openjdk-${JAVA_VERSION}-jdk=*" \
-  && update-ca-certificates \
-  && ln -s "/usr/lib/jvm/$(find /usr/lib/jvm -name "java-1.${JAVA_VERSION}*" -exec basename {} \;)" "/usr/lib/jvm/java-${JAVA_VERSION}" \
-  && echo "export JAVA_HOME=/usr/lib/jvm/java-${JAVA_VERSION}" >> "${HOME}/.profile" \
-  && apt-get clean \
-  && rm -rf /var/lib/apt/lists/*
-
-# Istall Maven
-ENV MAVEN_OPTS=-Xmx1g
-ENV MAVEN_VERSION=3.9.9
-ENV M2_HOME=/usr/local/apache-maven/apache-maven-${MAVEN_VERSION}
-RUN echo "export M2_HOME=/usr/local/apache-maven/apache-maven-${MAVEN_VERSION}" >> "${HOME}/.profile" \
-  && wget --quiet "https://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz" \
-  && mkdir -p /usr/local/apache-maven \
-  && mv "apache-maven-${MAVEN_VERSION}-bin.tar.gz" /usr/local/apache-maven \
-  && tar xzvf "/usr/local/apache-maven/apache-maven-${MAVEN_VERSION}-bin.tar.gz" -C /usr/local/apache-maven/ \
-  && update-alternatives --install /usr/bin/mvn mvn "${M2_HOME}/bin/mvn" 1 \
-  && update-alternatives --config mvn \
-  && mvn dependency:get -Dartifact=junit:junit:4.11
-
-# Install Cabal and GHC
 ARG GHC=9.6.7
 ARG CABAL=3.12.1.0
 RUN gpg --batch --recv-keys ECA44F5A172EDAD947F39E3D4275CDA6A29BED43 \
-  && wget --quiet https://downloads.haskell.org/~ghcup/x86_64-linux-ghcup -O /usr/bin/ghcup \
+  && curl -sSL https://downloads.haskell.org/~ghcup/x86_64-linux-ghcup -o /usr/bin/ghcup \
   && chmod +x /usr/bin/ghcup \
   && ghcup config set gpg-setting GPGStrict \
   && ghcup -v install ghc --isolate /usr/local --force "${GHC}" \
   && ghcup -v install cabal --isolate /usr/local/bin --force "${CABAL}" \
-  && cabal update \
-  && ghc --version \
-  && cabal --version
+  && cabal update
 
-# The value to be set in BuildMojo or in default-phino-version.txt file:
 ARG PHINO_VERSION=0.0.0.0
-RUN cabal update \
-    && cabal install --disable-tests --disable-coverage --overwrite-policy=always "phino-${PHINO_VERSION}" \
-    && cp /root/.local/bin/phino /usr/bin \
-    && phino --version
-
-# Remove unnecessary files to reduce image size
-RUN rm -rf /root/.cabal \
-    && rm -rf /root/.local/state/cabal \
-    && rm -rf /usr/local/bin/cabal \
-    && apt-get autoremove -y \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+RUN cabal install --disable-tests --disable-coverage --overwrite-policy=always "phino-${PHINO_VERSION}" \
+  && find /root -name phino -type f 2>/dev/null | head -1 | xargs -I {} cp {} /usr/local/bin/phino \
+  && chmod +x /usr/local/bin/phino \
+  && /usr/local/bin/phino --version
 
-COPY in-docker-pom.xml pom.xml
+FROM eclipse-temurin:17-jre-jammy
 
+LABEL "repository"="https://github.com/objectionary/hone-maven-plugin"
+LABEL "maintainer"="Yegor Bugayenko"
+LABEL "version"="0.0.0"
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV LC_ALL=en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US.UTF-8
+
+# Install only essential runtime dependencies
+RUN apt-get update && apt-get install --yes --no-install-recommends \
+    locales=* \
+    ca-certificates=* \
+    curl=* \
+    wget=* \
+    libgmp10=* \
+    libxml2-utils=* \
+    tree=* \
+    unzip=* \
+  && sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen \
+  && locale-gen \
+  && update-locale LANG=en_US.UTF-8 \
+  && apt-get clean \
+  && rm -rf /var/lib/apt/lists/*
+
+# Install Maven (smaller footprint)
+ENV MAVEN_VERSION=3.9.9
+ENV MAVEN_HOME=/opt/maven
+ENV PATH="${MAVEN_HOME}/bin:${PATH}"
+RUN wget --quiet "https://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz" \
+  && tar xzf "apache-maven-${MAVEN_VERSION}-bin.tar.gz" -C /opt \
+  && mv "/opt/apache-maven-${MAVEN_VERSION}" "${MAVEN_HOME}" \
+  && rm "apache-maven-${MAVEN_VERSION}-bin.tar.gz"
+
+WORKDIR /hone
+
+# Copy phino binary and its dependencies from builder:
+COPY --from=builder /usr/local/bin/phino /usr/bin/phino
+RUN phino --version
+
+COPY in-docker-pom.xml pom.xml
 COPY extensions.xml ./.mvn/
 COPY settings.xml /hone/
+
+# Pre-download Maven dependencies and clean up unnecessary plugins
 RUN mkdir -p /hone/.m2 \
-    && mvn --settings=/hone/settings.xml --update-snapshots --batch-mode --strict-checksums --errors -Dbuildtime.output.log=true eo:help jeo:help exec:help \
-    && chmod -R a+rwx /hone/.m2
+  && mvn --settings=/hone/settings.xml --update-snapshots --batch-mode --strict-checksums --errors -Dbuildtime.output.log=true eo:help jeo:help exec:help \
+  && chmod -R a+rwx /hone/.m2 \
+  && find /hone/.m2 -name "*.lastUpdated" -delete \
+  && find /hone/.m2 -name "_remote.repositories" -delete \
+  && find /hone/.m2 -name "*.sha1" -delete
 
 ENV MAVEN_OPTS=-Xmx16g
 ENV JAVA_OPTS=-Xmx16g

src/main/resources/org/eolang/hone/scaffolding/entry.sh

@@ -4,6 +4,11 @@
 
 set -e -o pipefail
 
+if [ "${DEBUG}" == 'true' ]; then
+  echo "We are in debug mode, printing all commands..."
+  set -x
+fi
+
 SELF=$(dirname "$0")
 
 if [ -z "${TARGET}" ]; then
@@ -86,7 +91,7 @@ printf 'Using Java: %s\n' "$(java --version | head -1)"
 
 printf 'Using Maven: %s\n' "$(mvn --version | head -1)"
 
-printf 'Using the following rules:\n\t%s\n' "${RULES// /\n\t/g}"
+printf 'Using the following rules:\n\t%b\n' "${RULES// /\n\t/g}"
 
 declare -a jeo_opts=()
 if [ -n "${INCLUDES}" ]; then
@@ -108,6 +113,7 @@ fi
     exec:exec \
     "-Dexec.phino.script=${SELF}/normalize.sh" \
     "-Dexec.phino.verbose=${VERBOSE}" \
+    "-Dexec.phino.debug=${DEBUG}" \
     "-Dexec.phino.rules=${RULES}" \
     "-Dexec.phino.grep-in=${GREP_IN}" \
     "-Dexec.phino.xmir-in=${TARGET}/generated-sources/jeo-disassemble" \

src/main/resources/org/eolang/hone/scaffolding/in-docker-pom.xml

@@ -42,6 +42,7 @@
             <executable>${exec.phino.script}</executable>
             <environmentVariables>
               <HONE_VERBOSE>${exec.phino.verbose}</HONE_VERBOSE>
+              <HONE_DEBUG>${exec.phino.debug}</HONE_DEBUG>
               <HONE_RULES>${exec.phino.rules}</HONE_RULES>
               <HONE_GREP_IN>${exec.phino.grep-in}</HONE_GREP_IN>
               <HONE_XMIR_IN>${exec.phino.xmir-in}</HONE_XMIR_IN>

src/main/resources/org/eolang/hone/scaffolding/normalize.sh

@@ -4,6 +4,11 @@
 
 set -e -o pipefail
 
+if [ "${HONE_DEBUG}" == 'true' ]; then
+  echo "We are in debug mode, printing all commands..."
+  set -x
+fi
+
 function verbose {
   if [ "${HONE_VERBOSE}" == 'true' ]; then
     echo "$@"
@@ -90,7 +95,7 @@ while IFS= read -r f; do
   fi
   s_size=$(du -sh "${xi}" | cut -f1)
   s_lines=$(wc -l < "${s}")
-  per=$(perl -E "say int(${s_lines} / ( $(date '+%s.%N') - ${start} ))")
+  per=$(perl -E "say int( ${s_lines} / ( $(date '+%s.%N') - ${start} ) )")
   if cmp -s "${r}" "${s}"; then
     echo "No changes in ${idx}/${total} $(basename "${s}"): ${s_size}, ${s_lines} lines, ${per} lps"
   else