chamikaramj commented on code in PR #36305: URL: https://github.com/apache/beam/pull/36305#discussion_r2393025982
########## scripts/beam-sql.sh: ########## @@ -0,0 +1,287 @@ +#!/bin/bash +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# A simple launcher for the Apache Beam SQL Shell. +# This script builds a self-contained JAR with all dependencies using Maven, +# which correctly handles service loading for IOs, and caches the JAR. +set -e # Exit immediately if a command exits with a non-zero status. + +# --- Configuration --- +DEFAULT_BEAM_VERSION="2.67.0" +MAIN_CLASS="org.apache.beam.sdk.extensions.sql.jdbc.BeamSqlLine" +# Directory to store cached executable JAR files +CACHE_DIR="${HOME}/.beam/cache" + +# Maven Wrapper Configuration +MAVEN_WRAPPER_VERSION="3.2.0" +MAVEN_VERSION="3.9.6" +MAVEN_WRAPPER_SCRIPT_URL="https://raw.githubusercontent.com/apache/maven-wrapper/refs/tags/maven-wrapper-${MAVEN_WRAPPER_VERSION}/maven-wrapper-distribution/src/resources/mvnw"; +MAVEN_WRAPPER_JAR_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/${MAVEN_WRAPPER_VERSION}/maven-wrapper-${MAVEN_WRAPPER_VERSION}.jar"; +MAVEN_DISTRIBUTION_URL="https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/${MAVEN_VERSION}/apache-maven-${MAVEN_VERSION}-bin.zip"; + +# Maven Plugin Configuration +MAVEN_SHADE_PLUGIN_VERSION="3.5.1" +mkdir -p "${CACHE_DIR}" + +# Create a temporary directory for our Maven project. +WORK_DIR=$(mktemp -d) + +# Ensure cleanup on script exit +cleanup() { + if [ -n "${WORK_DIR}" ] && [ -d "${WORK_DIR}" ]; then + rm -rf "${WORK_DIR}" + fi +} +trap cleanup EXIT + +# --- Helper Functions --- +# This function downloads the maven wrapper script and supporting files. +function setup_maven_wrapper() { + local beam_dir="${HOME}/.beam" + local maven_wrapper_dir="${beam_dir}/maven-wrapper" + local mvnw_script="${maven_wrapper_dir}/mvnw" + local wrapper_jar="${maven_wrapper_dir}/.mvn/wrapper/maven-wrapper.jar" + local wrapper_props="${maven_wrapper_dir}/.mvn/wrapper/maven-wrapper.properties" + + # Check if Maven wrapper is already cached + if [ -f "${mvnw_script}" ] && [ -f "${wrapper_jar}" ] && [ -f "${wrapper_props}" ]; then + echo "🔧 Using cached Maven Wrapper from ${maven_wrapper_dir}" + # Use the cached wrapper directly + MAVEN_CMD="${mvnw_script}" + return + fi + + echo "🔧 Downloading Maven Wrapper for the first time..." + mkdir -p "${maven_wrapper_dir}/.mvn/wrapper" + + # Create the properties file to specify a modern Maven version + echo "distributionUrl=${MAVEN_DISTRIBUTION_URL}" > "${wrapper_props}" + + # Download the mvnw script and the wrapper JAR to cache directory + curl -sSL -o "${mvnw_script}" "${MAVEN_WRAPPER_SCRIPT_URL}" + curl -sSL -o "${wrapper_jar}" "${MAVEN_WRAPPER_JAR_URL}" + + # Make the wrapper script executable + chmod +x "${mvnw_script}" + + echo "✅ Maven Wrapper cached in ${maven_wrapper_dir} for future use" + # Use the cached wrapper directly + MAVEN_CMD="${mvnw_script}" +} + +function usage() { + echo "Usage: $0 [--version <beam_version>] [--runner <runner_name>] [--io <io_connector>]..." + echo "" + echo "A self-contained launcher for the Apache Beam SQL Shell." + echo "" + echo "Options:" + echo " --version Specify the Apache Beam version (default: ${DEFAULT_BEAM_VERSION})." + echo " --runner Specify the Beam runner to use (default: direct). Supported: direct, dataflow." + echo " --io Specify an IO connector to include (e.g., iceberg, kafka). Can be used multiple times." + echo " --list-versions List all available Beam versions from Maven Central and exit." + echo " --debug Enable debug mode (sets bash -x flag)." + echo " -h, --help Show this help message." + exit 1 +} + +# This function fetches all available Beam versions from Maven Central. +function list_versions() { + echo "🔎 Fetching the 10 most recent Apache Beam versions from Maven Central..." + local metadata_url="https://repo1.maven.org/maven2/org/apache/beam/beam-sdks-java-core/maven-metadata.xml"; + + if ! command -v curl &> /dev/null; then + echo "❌ Error: 'curl' is required to fetch the version list." >&2 + return 1 + fi + + # Fetch, parse, filter, sort, and take the top 10. + local versions + versions=$(curl -sS "${metadata_url}" | \ + grep '<version>' | \ + sed 's/.*<version>\(.*\)<\/version>.*/\1/' | \ + grep -v 'SNAPSHOT' | \ + sort -rV | \ + head -n 10) # Limit to the first 10 lines + + if [ -z "${versions}" ]; then + echo "❌ Could not retrieve versions. Please check your internet connection or the Maven Central status." >&2 + return 1 + fi + + echo "✅ 10 latest versions:" + echo "${versions}" +} + + +# --- Argument Parsing --- +BEAM_VERSION="${DEFAULT_BEAM_VERSION}" +IO_CONNECTORS=() +BEAM_RUNNER="direct" +SQLLINE_ARGS=() +DEBUG_MODE=false + +while [[ "$#" -gt 0 ]]; do + case $1 in + --version) BEAM_VERSION="$2"; shift ;; + --runner) BEAM_RUNNER=$(echo "$2" | tr '[:upper:]' '[:lower:]'); shift ;; + --io) IO_CONNECTORS+=("$2"); shift ;; + --list-versions) list_versions; exit 0 ;; + --debug) DEBUG_MODE=true ;; + -h|--help) usage ;; + *) SQLLINE_ARGS+=("$1") ;; + esac + shift +done + +# Enable debug mode if requested +if [ "${DEBUG_MODE}" = true ]; then + set -x +fi + +# --- Prerequisite Check --- +# Java is always required. +if ! command -v java &> /dev/null; then + echo "❌ Error: 'java' command not found. It is required to run the application." >&2 + exit 1 +fi + +# Curl is required for Maven wrapper setup. +if ! command -v curl &> /dev/null; then + echo "❌ Error: 'curl' command not found. It is required to download the Maven wrapper." >&2 + exit 1 +fi + +setup_maven_wrapper + +echo "🚀 Preparing Beam SQL Shell v${BEAM_VERSION}..." +echo " Runner: ${BEAM_RUNNER}" +if [ ${#IO_CONNECTORS[@]} -gt 0 ]; then + echo " Including IOs: ${IO_CONNECTORS[*]}" +fi + +# --- Dependency Resolution & JAR Caching --- + +# Create a unique key for the configuration to use as a cache filename. +sorted_ios_str=$(printf "%s\n" "${IO_CONNECTORS[@]}" | sort | tr '\n' '-' | sed 's/-$//') +CACHE_KEY="beam-${BEAM_VERSION}_runner-${BEAM_RUNNER}_ios-${sorted_ios_str}.jar" +CACHE_FILE="${CACHE_DIR}/${CACHE_KEY}" + +# Check if a cached JAR already exists for this configuration. +if [ -f "${CACHE_FILE}" ]; then + echo "✅ Found cached executable JAR. Skipping build." + CP="${CACHE_FILE}" +else + echo "🔎 No cache found. Building executable JAR (this might take a moment on first run)..." + + # --- Dynamic POM Generation --- + POM_FILE="${WORK_DIR}/pom.xml" + cat > "${POM_FILE}" << EOL +<project xmlns="http://maven.apache.org/POM/4.0.0"; + xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; + xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd";> + <modelVersion>4.0.0</modelVersion> + <groupId>org.apache.beam</groupId> + <artifactId>beam-sql-shell-runner</artifactId> + <version>1.0</version> + <dependencies> + <dependency> + <groupId>org.apache.beam</groupId> + <artifactId>beam-sdks-java-extensions-sql-jdbc</artifactId> + <version>\${beam.version}</version> + </dependency> +EOL +# Add IO and Runner dependencies + for io in "${IO_CONNECTORS[@]}"; do + echo " <dependency><groupId>org.apache.beam</groupId><artifactId>beam-sdks-java-io-${io}</artifactId><version>\${beam.version}</version></dependency>" >> "${POM_FILE}" + done + RUNNER_ARTIFACT="" + case "${BEAM_RUNNER}" in + dataflow) RUNNER_ARTIFACT="beam-runners-google-cloud-dataflow-java" ;; + direct) ;; + *) echo "❌ Error: Unsupported runner '${BEAM_RUNNER}'." >&2; exit 1 ;; + esac + if [ -n "${RUNNER_ARTIFACT}" ]; then + echo " <dependency><groupId>org.apache.beam</groupId><artifactId>${RUNNER_ARTIFACT}</artifactId><version>\${beam.version}</version></dependency>" >> "${POM_FILE}" + fi + +# Complete the POM with the build section for the maven-shade-plugin +cat >> "${POM_FILE}" << EOL + </dependencies> + <properties> + <beam.version>${BEAM_VERSION}</beam.version> + </properties> + <build> + <plugins> + <plugin> + <groupId>org.apache.maven.plugins</groupId> + <artifactId>maven-shade-plugin</artifactId> + <version>${MAVEN_SHADE_PLUGIN_VERSION}</version> + <executions> + <execution> + <phase>package</phase> + <goals> + <goal>shade</goal> + </goals> + <configuration> + <transformers> + <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/> + </transformers> + <filters> + <filter> + <artifact>*:*</artifact> + <excludes> + <exclude>META-INF/*.SF</exclude> + <exclude>META-INF/*.DSA</exclude> + <exclude>META-INF/*.RSA</exclude> + </excludes> + </filter> + </filters> + </configuration> + </execution> + </executions> + </plugin> + </plugins> + </build> +</project> +EOL + + # Use `mvn package` to build the uber JAR. + ${MAVEN_CMD} -f "${POM_FILE}" -q --batch-mode package Review Comment: This is not needed if users can already see the Maven build progress. -- This is an automated message from the Apache Git Service. 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