Merge pull request #199 from Olog/reproducible_builds

reproducible builds, include git commit info and git commit time

pom.xml

@@ -61,6 +61,8 @@
         <skipITCoverage>true</skipITCoverage>
         <jacoco.skip>true</jacoco.skip>
         <jackson.version>2.14.3</jackson.version>
+        <!--suppress UnresolvedMavenProperty -->
+        <project.build.outputTimestamp>${git.commit.time}</project.build.outputTimestamp>
     </properties>
 
     <dependencyManagement>
@@ -398,6 +400,32 @@
                     </execution>
                 </executions>
             </plugin>
+            <!-- Include the git properties to ensure reproducible builds -->
+            <plugin>
+                <groupId>io.github.git-commit-id</groupId>
+                <artifactId>git-commit-id-maven-plugin</artifactId>
+                <version>9.0.1</version>
+                <executions>
+                    <execution>
+                        <id>get-the-git-infos</id>
+                        <goals>
+                            <goal>revision</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <failOnNoGitDirectory>false</failOnNoGitDirectory>
+                    <dotGitDirectory>${project.basedir}/.git</dotGitDirectory>
+                    <prefix>git</prefix>
+                    <verbose>false</verbose>
+                    <generateGitPropertiesFile>true</generateGitPropertiesFile>
+                    <generateGitPropertiesFilename>${project.build.outputDirectory}/git.properties</generateGitPropertiesFilename>
+                    <format>json</format>
+                    <excludeProperties>
+                        <excludeProperty>^git.build.*$</excludeProperty>
+                    </excludeProperties>
+                </configuration>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-release-plugin</artifactId>