speedy install based on git revision

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>ru.izebit</groupId>
    <artifactId>maven-example</artifactId>
    <version>1.0-SNAPSHOT</version>

    <build>
        <plugins>
            <plugin>
                <groupId>pl.project13.maven</groupId>
                <artifactId>git-commit-id-plugin</artifactId>
                <version>2.2.4</version>

                <executions>
                    <execution>
                        <id>get-the-git-information</id>
                        <goals>
                            <goal>revision</goal>
                        </goals>
                        <phase>validate</phase>
                    </execution>
                </executions>
                <configuration>
                    <prefix>git</prefix>
                    <validationProperties>
                        <!-- verify that the current repository is not dirty -->
                        <validationProperty>
                            <name>validating git dirty</name>
                            <value>${git.dirty}</value>
                            <shouldMatchTo>false</shouldMatchTo>
                        </validationProperty>
                    </validationProperties>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <version>1.8</version>
                <executions>
                    <execution>
                        <configuration>
                            <exportAntProperties>true</exportAntProperties>
                            <target>
                                <taskdef resource="net/sf/antcontrib/antcontrib.properties"/>

                                <echo>Git revision: ${git.commit.id}</echo>
                                <echo>Does repo contain any changes? ${git.dirty}</echo>


                                <propertyregex property="directory.name"
                                               input="${project.groupId}"
                                               regexp="[.]"
                                               replace="/"
                                               global="true"/>
                                <property name="artifact.path"
                                          value="${settings.localRepository}/${directory.name}/${project.artifactId}/${project.version}"/>
                                <echo>Artifact path: ${artifact.path}</echo>

                                <condition property="skip.build" value="true" else="false">
                                    <and>
                                        <isfalse value="${git.dirty}"/>
                                        <resourceexists>
                                            <file file="${artifact.path}/${project.build.finalName}.${project.packaging}"/>
                                        </resourceexists>
                                        <resourceexists>
                                            <file file="${artifact.path}/${git.commit.id}"/>
                                        </resourceexists>
                                    </and>
                                </condition>

                                <if>
                                    <equals arg1="${skip.build}" arg2="true"/>
                                    <then>
                                        <echo message="Skip build for ${project.artifactId}"/>
                                    </then>
                                    <else>
                                        <echo message="Rebuild ${project.artifactId}"/>
                                        <delete dir="${artifact.path}/" failonerror="false"/>
                                        <mkdir dir="${artifact.path}"/>
                                        <touch file="${artifact.path}/${git.commit.id}"/>
                                    </else>
                                </if>
                            </target>
                        </configuration>

                        <phase>validate</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>ant-contrib</groupId>
                        <artifactId>ant-contrib</artifactId>
                        <version>1.0b3</version>
                        <exclusions>
                            <exclusion>
                                <groupId>ant</groupId>
                                <artifactId>ant</artifactId>
                            </exclusion>
                        </exclusions>
                    </dependency>
                </dependencies>
            </plugin>


            <!--other plugins-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <skipMain>${skip.build}</skipMain>
                    <skip>${skip.build}</skip>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>3.0.0</version>
                <configuration>
                    <skip>${skip.build}</skip>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <skipIfEmpty>true</skipIfEmpty>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-install-plugin</artifactId>
                <configuration>
                    <skip>${skip.build}</skip>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>