Added git-commit-id plugin for app version logging

pom.xml

@@ -16,7 +16,10 @@
 
 	<properties>
 		<java.version>17</java.version>
+		<git.info.prefix>git_info</git.info.prefix>
+		<git.info.filename>git.properties</git.info.filename>
 	</properties>
+
 	<dependencies>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
@@ -107,6 +110,36 @@
 	<build>
 		<finalName>credit-tracker</finalName>
 		<plugins>
+			<plugin>
+				<groupId>pl.project13.maven</groupId>
+				<artifactId>git-commit-id-plugin</artifactId>
+				<version>4.9.10</version>
+				<executions>
+					<execution>
+						<id>get-the-git-infos</id>
+						<goals>
+							<goal>revision</goal>
+						</goals>
+						<phase>compile</phase>
+					</execution>
+				</executions>
+				<configuration>
+					<failOnNoGitDirectory>false</failOnNoGitDirectory>
+					<dotGitDirectory>${project.basedir}/${git.info.relative.dir}</dotGitDirectory>
+					<generateGitPropertiesFile>true</generateGitPropertiesFile>
+					<generateGitPropertiesFilename>
+						${project.build.outputDirectory}/${git.info.filename}
+					</generateGitPropertiesFilename>
+					<prefix>${git.info.prefix}</prefix>
+					<includeOnlyProperties>
+						<includeOnlyProperty>${git.info.prefix}.commit.id</includeOnlyProperty>
+						<includeOnlyProperty>${git.info.prefix}.branch</includeOnlyProperty>
+						<includeOnlyProperty>${git.info.prefix}.build.version</includeOnlyProperty>
+						<includeOnlyProperty>${git.info.prefix}.build.time</includeOnlyProperty>
+						<includeOnlyProperty>${git.info.prefix}.closest.tag.name</includeOnlyProperty>
+					</includeOnlyProperties>
+				</configuration>
+			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>

src/main/java/ru/nbch/credit_tracker/config/settings/version/VersionInfoLogger.java

@@ -0,0 +1,32 @@
+package ru.nbch.credit_tracker.config.settings.version;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.event.EventListener;
+import org.springframework.core.io.ClassPathResource;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+@Slf4j
+@Configuration
+public class VersionInfoLogger {
+
+    @EventListener(ApplicationReadyEvent.class)
+    public void logGitInfo() {
+        try {
+            Properties properties = new Properties();
+            ClassPathResource resource = new ClassPathResource("git.properties");
+            try (InputStream inputStream = resource.getInputStream()) {
+                properties.load(inputStream);
+                String version = VersionInfoProvider.obtainVersionInfo(properties, "git_info");
+                log.info("Application version: {}", version);
+            }
+        } catch (IOException e) {
+            log.warn("Failed to load git.properties", e);
+        }
+    }
+
+}

src/main/java/ru/nbch/credit_tracker/config/settings/version/VersionInfoProvider.java

@@ -0,0 +1,58 @@
+package ru.nbch.credit_tracker.config.settings.version;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.util.StringUtils;
+
+import java.util.Properties;
+import java.util.function.Function;
+
+@Slf4j
+public class VersionInfoProvider {
+
+    public static String obtainVersionInfo(Properties properties, String prefix) {
+        VersionInfoProvider gitVersionInfo = VersionInfoProvider.build(properties, prefix);
+        if (gitVersionInfo != null) return gitVersionInfo.toString();
+        log.warn("no build info is available by git-commit-id-plugin...");
+        return "[UNKNOWN VERSION]";
+    }
+
+    public static VersionInfoProvider build(Properties properties, String prefix) {
+        if (properties == null || prefix == null) return null;
+        VersionInfoProvider provider = new VersionInfoProvider(properties, prefix);
+        if (!StringUtils.hasText(provider.gitRevision)) return null;
+        return provider;
+    }
+
+
+    //from git-commit-id-plugin
+    private String gitRevision;
+    private String gitBranch;
+    private String mavenVersion;
+    private String buildTime;
+    private String tag;
+
+    private VersionInfoProvider(Properties properties, String prefix) {
+        Function<String, String> pref = s -> prefix + "." + s;
+        if (properties != null) {
+            gitRevision = properties.getProperty(pref.apply("commit.id"));
+            gitBranch = properties.getProperty(pref.apply("branch"));
+            mavenVersion = properties.getProperty(pref.apply("build.version")); //project version from maven
+            buildTime = properties.getProperty(pref.apply("build.time"));
+            tag = properties.getProperty(pref.apply("closest.tag.name"));
+        }
+    }
+
+    @Override
+    public String toString() {
+        if (gitRevision != null) {
+            return String.format("v. %s-%s-%s-%s", //-%s-%s
+                    mavenVersion,
+                    gitBranch,
+                    gitRevision.substring(0, Math.min(gitRevision.length(), 8)),
+                    buildTime //, tag, gitRevision
+            );
+        }  else {
+            return "UNKNOWN_VERSION";
+        }
+    }
+}