mvn-incremental

#!/bin/bash

echo "----------------------------------------"
echo "      jfactory incremental build"
echo "----------------------------------------"

COMPLETE_BUILD="false"
while [[ -n "$1" ]]; do
    case "$1" in
        --complete-build)
            COMPLETE_BUILD="true"
            shift
            ;;
    esac
    shift
done
git show --pretty="format:" --name-only HEAD --relative | sed -re'/^$/d' | while read a; do dirname "$a"; done | sort -u > file.list

if [[ -x "/usr/share/maven/bin/mvn" ]]; then
    MVN="/usr/share/maven/bin/mvn"
else
    MVN="mvn"
fi

MVN="$MVN $MAVEN_OPTIONS"

root_dir="$(pwd)/"

if [[ $COMPLETE_BUILD == "true" ]]; then
    echo "Compiling all projects"
    exec ${MVN} ${MVN_COMPILE_GOALS}
else
    OLD_IFS=$IFS
    IFS=$'\n'
    MODULES_TO_BUILD=""
    for MODULE in $(find . -name "pom.xml" | grep -v "target/" | sed -re's,^\./,,' | while read a; do dirname "$a"; done | sort -u); do
        if grep -F "$MODULE" "${root_dir}/file.list"; then
            MODULES_TO_BUILD="${MODULES_TO_BUILD}${MODULES_TO_BUILD:+,}${MODULE}"
        fi
    done
    IFS=$OLD_IFS

    echo "Compiling incrementally"
    echo "${MVN} ${MVN_COMPILE_GOALS} -amd -pl $MODULES_TO_BUILD"
    exec ${MVN} ${MVN_COMPILE_GOALS} -amd -pl $MODULES_TO_BUILD
fi