dev-support/generate-toolchains.sh

#!/usr/bin/env bash
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# to you under the Apache License, Version 2.0 (the
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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# Script to generate toolchains.xml with configurable Java paths

# Set default paths if environment variables are not set
if [ -z "$JAVA8_HOME" ]; then
    echo "Trying to detect Java 8 installation (Jenkins/CI standard path)"
    if [ -d "/usr/lib/jvm/java-8" ]; then
        JAVA8_HOME="/usr/lib/jvm/java-8"
    else
        echo "Warning: JAVA8_HOME not set and Java 8 not found at /usr/lib/jvm/java-8"
        echo "For local development, please set JAVA8_HOME environment variable"
        JAVA8_HOME="/usr/lib/jvm/java-8"
    fi
fi

if [ -z "$JAVA17_HOME" ]; then
    echo "Trying to detect Java 17 installation (Jenkins/CI standard path)"
    if [ -d "/usr/lib/jvm/java-17" ]; then
        JAVA17_HOME="/usr/lib/jvm/java-17"
    else
        echo "Warning: JAVA17_HOME not set and Java 17 not found at /usr/lib/jvm/java-17"
        echo "For local development, please set JAVA17_HOME environment variable"
        JAVA17_HOME="/usr/lib/jvm/java-17"
    fi
fi

TEMPLATE_FILE="./dev-support/toolchains-jenkins.xml"
OUTPUT_FILE="toolchains.xml"

if [ ! -f "$TEMPLATE_FILE" ]; then
  echo "Template file $TEMPLATE_FILE not found!"
  exit 1
fi

echo "Generating toolchains.xml with:"
echo "  JAVA8_HOME: $JAVA8_HOME"
echo "  JAVA17_HOME: $JAVA17_HOME"

# Substitute placeholders and write output
sed \
  -e "s|/usr/lib/jvm/java-8|$JAVA8_HOME|g" \
  -e "s|/usr/lib/jvm/java-17|$JAVA17_HOME|g" \
  "$TEMPLATE_FILE" > "$OUTPUT_FILE"

echo "toolchains.xml generated successfully!"