Log the version number and commit on startup

hapi-fhir-base/pom.xml

@@ -162,12 +162,45 @@
 					</instructions>
 				</configuration>
 			</plugin>
+			<plugin>
+				<groupId>org.codehaus.mojo</groupId>
+				<artifactId>buildnumber-maven-plugin</artifactId>
+				<inherited>true</inherited>
+				<executions>
+					<execution>
+						<id>standard</id>
+						<phase>validate</phase>
+						<goals>
+							<goal>create</goal>
+						</goals>
+					</execution>
+					<execution>
+						<id>downstream</id>
+						<phase>validate</phase>
+						<goals>
+							<goal>create-metadata</goal>
+						</goals>
+						<configuration>
+							<outputDirectory>${project.build.directory}/generated-sources/properties</outputDirectory>
+							<outputName>ca/uhn/fhir/hapi-fhir-base-build.properties</outputName>
+							<revisionPropertyName>hapifhir.buildnumber</revisionPropertyName>
+							<timestampPropertyName>hapifhir.timestamp</timestampPropertyName>
+							<timestampFormat>yyyy-MM-dd'T'HH:mm:ss.SXXX</timestampFormat>
+							<versionPropertyName>hapifhir.version</versionPropertyName>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
 		</plugins>
 		<resources>
 			<resource>
 				<directory>src/main/resources</directory>
 				<filtering>true</filtering>
 			</resource>
+			<resource>
+				<directory>${project.build.directory}/generated-sources/properties</directory>
+				<filtering>false</filtering>
+			</resource>
 		</resources>
 	</build>
 

hapi-fhir-base/src/main/java/ca/uhn/fhir/util/VersionUtil.java

@@ -20,9 +20,13 @@ package ca.uhn.fhir.util;
  * #L%
  */
 
+import org.apache.commons.lang3.StringUtils;
+
 import java.io.InputStream;
 import java.util.Properties;
 
+import static org.apache.commons.lang3.StringUtils.defaultIfBlank;
+
 /**
  * Used internally by HAPI to log the version of the HAPI FHIR framework
  * once, when the framework is first loaded by the classloader.
@@ -31,21 +35,37 @@ public class VersionUtil {
 
 	private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(VersionUtil.class);
 	private static String ourVersion;
+	private static String ourBuildNumber;
+	private static String ourBuildTime;
 
 	static {
 		initialize();
 	}
 
+	public static String getBuildNumber() {
+		return ourBuildNumber;
+	}
+
+	public static String getBuildTime() {
+		return ourBuildTime;
+	}
+
 	public static String getVersion() {
 		return ourVersion;
 	}
 
 	private static void initialize() {
-		try (InputStream is = VersionUtil.class.getResourceAsStream("/ca/uhn/fhir/hapi-version.properties")) {
+		try (InputStream is = VersionUtil.class.getResourceAsStream("/ca/uhn/fhir/hapi-fhir-base-build.properties")) {
+
 			Properties p = new Properties();
 			p.load(is);
-			ourVersion = p.getProperty("version");
+
-			ourLog.info("HAPI FHIR version is: " + ourVersion);
+			ourVersion = p.getProperty("hapifhir.version");
+			ourVersion = defaultIfBlank(ourVersion, "(unknown)");
+
+			ourBuildNumber = p.getProperty("hapifhir.buildnumber");
+			ourBuildTime = p.getProperty("hapifhir.timestamp");
+			ourLog.info("HAPI FHIR version {} - Rev {}", ourVersion, StringUtils.right(ourBuildNumber, 10));
 		} catch (Exception e) {
 			ourLog.warn("Unable to determine HAPI version information", e);
 		}

hapi-fhir-base/src/test/java/ca/uhn/fhir/util/VersionUtilTest.java

@@ -0,0 +1,19 @@
+package ca.uhn.fhir.util;
+
+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.Matchers.blankOrNullString;
+import static org.junit.Assert.*;
+
+public class VersionUtilTest {
+
+	@Test
+	public void testProperties() {
+		assertThat(VersionUtil.getVersion(), not(blankOrNullString()));
+		assertThat(VersionUtil.getBuildNumber(), not(blankOrNullString()));
+		assertThat(VersionUtil.getBuildTime(), not(blankOrNullString()));
+	}
+
+
+}

pom.xml

@@ -1485,6 +1485,11 @@
 					<artifactId>build-helper-maven-plugin</artifactId>
 					<version>3.0.0</version>
 				</plugin>
+				<plugin>
+					<groupId>org.codehaus.mojo</groupId>
+					<artifactId>buildnumber-maven-plugin</artifactId>
+					<version>1.4</version>
+				</plugin>
 				<plugin>
 					<groupId>org.codehaus.mojo</groupId>
 					<artifactId>animal-sniffer-maven-plugin</artifactId>

src/changes/changes.xml

@@ -303,6 +303,10 @@
 				AuthorizationInterceptor can now allow a user to perform a search that is scoped to a particular
 				resource (e.g. Patient?_id=123) if the user has read access for that specific instance.
 			</action>
+			<action type="add">
+				HAPI FHIR will now log the Git revision when it first starts up (on the ame line as the version number
+				that it already logs).
+			</action>
 		</release>
 		<release version="3.6.0" date="2018-11-12" description="Food">
 			<action type="add">