简介
git-commit-id-maven-plugin 是一个maven 插件,用来在打包的时候将git-commit 信息打进jar中。
这样做的好处是可以将发布的某版本和对应的代码关联起来,方便查阅和线上项目的维护。至于它的作用,用官方说法,这个功能对于大型分布式项目来说是无价的。
功能
你是否经常遇到这样的问题:
-
测试提交了一个bug,开发人员无法确认是哪个版本有这个问题,当前测试环境部署的是某个版本吗?生产环境会不会也有这个问题?
-
公司内部的项目,总共几十、几百个服务,每天都有服务的生产环境部署,一个服务甚至一天上线好几次,对于项目管理来说无法清晰了解某一时刻某个服务的版本
-
如何验证我的代码是否已经上线?
-
。。。。。。
以上种种,都有一个共同的诉求,就是我希望在打包的时候将最后一次 git commit id 和当前 jar 关联起来并可试试查询jar对应的git commit id 。
实践
引入插件
本例SpringBoot版本为 2.7.6,java版本为11
此插件已经上传到中央仓库(https://central.sonatype.com/artifact/io.github.git-commit-id/git-commit-id-maven-plugin?smo=true)
在项目pom.xml 中引入如下插件
<project>
......
<build>
<plugins>
<plugin>
<groupId>io.github.git-commit-idgroupId>
<artifactId>git-commit-id-maven-pluginartifactId>
<version>5.0.0version>
<executions>
<execution>
<id>get-the-git-infosid>
<goals>
<goal>revisiongoal>
goals>
<phase>initializephase>
execution>
executions>
<configuration>
<generateGitPropertiesFile>truegenerateGitPropertiesFile>
<generateGitPropertiesFilename>${project.build.outputDirectory}/git.generateGitPropertiesFilename>
<includeOnlyProperties>
<includeOnlyProperty>^git.build.(time|version)$includeOnlyProperty>
<includeOnlyProperty>^git.commit.id.(abbrev|full)$includeOnlyProperty>
includeOnlyProperties>
<format>txtformat>
<commitIdGenerationMode>fullcommitIdGenerationMode>
configuration>
plugin>
plugins>
build>
project>
- generateGitPropertiesFilename:用于指定生成的gitCommitInfo存放到哪个位置,后缀可以任意指定,如果不指定将使用format的值
- format:指定文件后缀,一般为 properties , json
- commitIdGenerationMode:记录完整信息,若format为json,此值必须为full
此外为了能成功打出jar包,还需要如下插件的配合:
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<version>${spring-boot.version}version>
<configuration>
<includeSystemScope>trueincludeSystemScope>
<excludes>
<exclude>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
exclude>
excludes>
configuration>
<executions>
<execution>
<id>repackageid>
<goals>
<goal>repackagegoal>
goals>
execution>
executions>
plugin>
使用maven执行 clean and package ,将在target\classes下生成 git.json文件,内容如下:
#Generated by Git-Commit-Id-Plugin
git.build.time=2024-02-21T10\:41\:24+0800
git.build.version=0.0.1-SNAPSHOT
git.commit.id.abbrev=3fc9c80
git.commit.id.full=3fc9c8009a48e22ef171c98a97398005e9f30a4a
同时,如果我们反编译生成的jar包,将在BOOT-INF/classes下看到git.json 文件
GitCommitIdMavenPlugin插件有丰富的配置选项,更多配置参考:
<configuration>
<dotGitDirectory>${project.basedir}/.gitdotGitDirectory>
<prefix>gitprefix>
<dateFormat>yyyy-MM-dd'T'HH:mm:ssZdateFormat>
<dateFormatTimeZone>${user.timezone}dateFormatTimeZone>
<verbose>falseverbose>
<generateGitPropertiesFile>truegenerateGitPropertiesFile>
<generateGitPropertiesFilename>${project.build.outputDirectory}/git.propertiesgenerateGitPropertiesFilename>
<format>propertiesformat>
<skipPoms>trueskipPoms>
<injectAllReactorProjects>falseinjectAllReactorProjects>
<failOnNoGitDirectory>truefailOnNoGitDirectory>
<failOnUnableToExtractRepoInfo>truefailOnUnableToExtractRepoInfo>
<skip>falseskip>
<offline>falseoffline>
<runOnlyOnce>falserunOnlyOnce>
<excludeProperties>
excludeProperties>
<includeOnlyProperties>
includeOnlyProperties>
<replacementProperties>
replacementProperties>
<useNativeGit>falseuseNativeGit>
<nativeGitTimeoutInMs>30000nativeGitTimeoutInMs>
<abbrevLength>7abbrevLength>
<commitIdGenerationMode>flatcommitIdGenerationMode>
<gitDescribe>
<skip>falseskip>
<always>truealways>
<abbrev>7abbrev>
<dirty>-dirtydirty>
<match>*match>
<tags>falsetags>
<forceLongFormat>falseforceLongFormat>
gitDescribe>
<validationProperties>
<validationProperty>
<name>validating project versionname>
<value>${project.version}value>
<shouldMatchTo>shouldMatchTo>
validationProperty>
validationProperties>
<validationShouldFailIfNoMatch>truevalidationShouldFailIfNoMatch>
<evaluateOnCommit>HEADevaluateOnCommit>
useBranchNameFromBuildEnvironment>trueuseBranchNameFromBuildEnvironment>
<injectIntoSysProperties>trueinjectIntoSysProperties>
configuration>
查询gitCommitInfo
通过编写一个接口,用来查询生成的GitCommitInfo,核心代码如下:
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.ResourceUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.io.*;
@Slf4j
@RestController
@RequestMapping("/version")
public class VersionController {
/**
* 获取 git.json 中的内容
* @return
* @throws IOException
*/
@GetMapping("/gitCommitId")
public String getGitCommitId() throws IOException {
//git.json or git.properties
Resource resource = new DefaultResourceLoader().getResource("classpath:git.json");
if (resource.exists()) {
InputStream inputStream = resource.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
StringBuffer content = new StringBuffer();
String s = "";
while ((s = reader.readLine()) != null) {
content = content.append(s);
}
return content.toString();
} else {
return "";
}
}
}
兼容性
与java的兼容性
- java8:插件版本=4.x
- java11:插件版本>=5
与maven的兼容性
- maven3:插件版本=4.x
- maven3.2.x:插件版本>=7