feat(git-version): Encode the latest release included in the build (#3535)

build.gradle

@@ -13,6 +13,10 @@ buildscript {
   }
 }
 
+plugins {
+  id 'com.gorylenko.gradle-git-properties' version '2.3.1'
+}
+
 project.ext.spec = [
     'product' : [
         'pegasus' : [
@@ -138,12 +142,21 @@ allprojects {
 
 subprojects {
   apply plugin: 'maven'
+  apply plugin: 'com.gorylenko.gradle-git-properties'
 
   configurations.all {
     exclude group: "io.netty", module: "netty"
     exclude group: "log4j", module: "log4j"
   }
 
+  gitProperties {
+    keys = ['git.commit.id','git.commit.id.describe','git.commit.time']
+    // using any tags (not limited to annotated tags) for "git.commit.id.describe" property
+    // see http://ajoberstar.org/grgit/grgit-describe.html for more info about the describe method and available parameters
+    // 'it' is an instance of org.ajoberstar.grgit.Grgit
+    customProperty 'git.commit.id.describe', { it.describe(tags: true) }
+  }
+
   plugins.withType(JavaPlugin) {
     dependencies {
       testCompile externalDependency.testng

metadata-io/src/main/java/com/linkedin/metadata/version/GitVersion.java

@@ -0,0 +1,18 @@
+package com.linkedin.metadata.version;
+
+import java.util.Optional;
+import javax.annotation.Nonnull;
+import lombok.Value;
+
+
+@Value
+public class GitVersion {
+  String version;
+  String commitId;
+  Optional<String> flag;
+
+  public static GitVersion getVersion(@Nonnull String commitId, @Nonnull String commitDescribe) {
+    String version = commitDescribe.split("-")[0];
+    return new GitVersion(version, commitId, Optional.empty());
+  }
+}

metadata-jobs/mae-consumer/src/main/java/com/linkedin/metadata/kafka/MaeConsumerConfig.java

@@ -1,20 +1,31 @@
 package com.linkedin.metadata.kafka;
 
+import com.linkedin.gms.factory.common.GitVersionFactory;
+import com.linkedin.metadata.version.GitVersion;
 import java.util.HashMap;
 import java.util.Map;
+import org.springframework.context.annotation.Import;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
 
-@Controller
-public class MaeConsumerConfig {
-    Map<String, String> config = new HashMap<String, String>() {{
-        put("noCode", "true");
-    }};
 
-    @GetMapping("/config")
-    @ResponseBody
-    public Map<String, String> sayHello() {
-      return config;
-    }
+@Controller
+@Import(GitVersionFactory.class)
+public class MaeConsumerConfig {
+  private final Map<String, String> config;
+
+  public MaeConsumerConfig(GitVersion gitVersion) {
+    config = new HashMap<>();
+    config.put("noCode", "true");
+
+    config.put("version", gitVersion.getVersion());
+    config.put("commit", gitVersion.getCommitId());
+  }
+
+  @GetMapping("/config")
+  @ResponseBody
+  public Map<String, String> getConfig() {
+    return config;
+  }
 }

metadata-jobs/mce-consumer/src/main/java/com/linkedin/metadata/kafka/MceConsumerConfig.java

@@ -0,0 +1,31 @@
+package com.linkedin.metadata.kafka;
+
+import com.linkedin.gms.factory.common.GitVersionFactory;
+import com.linkedin.metadata.version.GitVersion;
+import java.util.HashMap;
+import java.util.Map;
+import org.springframework.context.annotation.Import;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+
+@Controller
+@Import(GitVersionFactory.class)
+public class MceConsumerConfig {
+  private final Map<String, String> config;
+
+  public MceConsumerConfig(GitVersion gitVersion) {
+    config = new HashMap<>();
+    config.put("noCode", "true");
+
+    config.put("version", gitVersion.getVersion());
+    config.put("commit", gitVersion.getCommitId());
+  }
+
+  @GetMapping("/config")
+  @ResponseBody
+  public Map<String, String> getConfig() {
+    return config;
+  }
+}

metadata-service/factories/src/main/java/com/linkedin/gms/factory/common/GitVersionFactory.java

@@ -0,0 +1,25 @@
+package com.linkedin.gms.factory.common;
+
+import com.linkedin.metadata.version.GitVersion;
+import javax.annotation.Nonnull;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+
+
+@Configuration
+@PropertySource("classpath:git.properties")
+public class GitVersionFactory {
+  @Value("${git.commit.id}")
+  private String commitId;
+
+  @Value("${git.commit.id.describe}")
+  private String commitDescribe;
+
+  @Nonnull
+  @Bean(name = "gitVersion")
+  protected GitVersion getInstance() {
+    return GitVersion.getVersion(commitId, commitDescribe);
+  }
+}

metadata-service/servlet/build.gradle

@@ -1,9 +1,11 @@
 apply plugin: 'java'
 
 dependencies {
+  compile project(':metadata-io')
   compile externalDependency.httpClient
   compile externalDependency.servletApi
   compile externalDependency.gson
   compile externalDependency.jacksonDataBind
+  compile externalDependency.springWebMVC
   annotationProcessor externalDependency.lombok
 }

metadata-service/servlet/src/main/java/com/datahub/gms/servlet/Config.java

@@ -2,25 +2,37 @@ package com.datahub.gms.servlet;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.linkedin.metadata.version.GitVersion;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.HashMap;
 import java.util.Map;
+import javax.servlet.ServletContext;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import org.springframework.web.context.WebApplicationContext;
+import org.springframework.web.context.support.WebApplicationContextUtils;
 
 
 // Return a 200 for health checks
 public class Config extends HttpServlet {
-  Map<String, String> config = new HashMap<String, String>() {{
-    put("noCode", "true");
-  }};
   ObjectMapper objectMapper = new ObjectMapper();
 
+  private GitVersion getGitVersion(ServletContext servletContext) {
+    WebApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
+    return (GitVersion) ctx.getBean("gitVersion");
+  }
 
   @Override
   protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    Map<String, String> config = new HashMap<>();
+    config.put("noCode", "true");
+
+    GitVersion version = getGitVersion(req.getServletContext());
+    config.put("version", version.getVersion());
+    config.put("commit", version.getCommitId());
+
     resp.setContentType("application/json");
     PrintWriter out = resp.getWriter();