http-api: Include commit hash in User-Agent

http-api/pom.xml

@@ -34,6 +34,11 @@
 	<name>Web API</name>
 	<artifactId>http-api</artifactId>
 
+	<properties>
+		<git.commit.id.abbrev>nogit</git.commit.id.abbrev>
+		<git.dirty>false</git.dirty>
+	</properties>
+
 	<dependencies>
 		<dependency>
 			<groupId>com.squareup.okhttp3</groupId>
@@ -86,5 +91,31 @@
 				<filtering>true</filtering>
 			</resource>
 		</resources>
+		<plugins>
+			<plugin>
+				<groupId>pl.project13.maven</groupId>
+				<artifactId>git-commit-id-plugin</artifactId>
+				<version>2.2.5</version>
+				<executions>
+					<execution>
+						<id>query-git-info</id>
+						<goals>
+							<goal>revision</goal>
+						</goals>
+						<configuration>
+							<failOnNoGitDirectory>false</failOnNoGitDirectory>
+							<failOnUnableToExtractRepoInfo>false</failOnUnableToExtractRepoInfo>
+							<gitDescribe>
+								<skip>true</skip>
+							</gitDescribe>
+							<includeOnlyProperties>
+								<includeOnlyProperty>git.commit.id.abbrev</includeOnlyProperty>
+								<includeOnlyProperty>git.dirty</includeOnlyProperty>
+							</includeOnlyProperties>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
 	</build>
 </project>