maven git-commit-id-plugin: commitId of subfolder/submodule

Question

I'm using the maven-git-commit-id-plugin maven plugin to get data like commitId. My maven project has some submodules in subfolders, like this:

hfe/pom.xml -
            - backend/pom.xml
            - frontend/pom.xml

hfe is the git-checkout, so there the folder .git exists.

In hfe/pom.xml in the build section I add the maven-git-commit-id-plugin so that it will be executed in every submodule.

If I do now a mvn package in the folder hfe/backend/, I will get the latest commitId of the whole project in the generated git-property-file. Is it possible to get the latest commitId of the subfolder hfe/backend.

To make it clear, I would like to have the commitId 90791bcf... in the file hfe/backend/target/git.properties, but in the moment I get the commitId d022a39342...:

/projects/hfe>git log -n 1 backend
commit 90791bcf145ee635c61f25c0ac62d0d66c49307f
Author: me
Date:   Fri May 10 12:30:31 2019 +0200

/projects/hfe>git log -n 1
commit d022a39342ecd6bcedeafbaf4bd80db495fdf23c (HEAD -> master, origin/master, origin/HEAD)
Author: other
Date:   Sun May 12 21:58:50 2019 +0200

Maybe there is another maven plugin which can do this?

Answer 1

Check if this git-commit-id/maven-git-commit-id-plugin issue 137 would help:

• running the plugin multiple times with different git projects without overwriting already generated properties.
• using the Git submodule SHA1 instead of the parent project

From TheSnoozer:

<!-- GIT COMMIT ID PLUGIN CONFIGURATION -->
<plugin>
    <groupId>pl.project13.maven</groupId>
    <artifactId>git-commit-id-plugin</artifactId>
    <version>2.2.5</version>
    <executions>
        <execution>
            <phase>initialize</phase>
            <id>get-the-git-infos-for-repository-one</id>
            <goals>
                <goal>revision</goal>
            </goals>
            <configuration>
                                <prefix>git1</prefix>
                <dotGitDirectory>pathToRepositoryOne/.git</dotGitDirectory>
                <generateGitPropertiesFilename>${project.build.outputDirectory}/repository_one_git.properties</generateGitPropertiesFilename>
            </configuration>
        </execution>
        <execution>
            <phase>initialize</phase>
            <id>get-the-git-infos-for-repository-two</id>
            <goals>
                <goal>revision</goal>
            </goals>
            <configuration>
                                <prefix>git2</prefix>
                <dotGitDirectory>pathToRepositoryTwo/.git</dotGitDirectory>
                <generateGitPropertiesFilename>${project.build.outputDirectory}/repository_two_git.properties</generateGitPropertiesFilename>
            </configuration>
        </execution>
    </executions>
    <configuration>
        <verbose>false</verbose>
        <skipPoms>false</skipPoms>
        <injectAllReactorProjects>true</injectAllReactorProjects>
        <generateGitPropertiesFile>true</generateGitPropertiesFile>
    </configuration>
</plugin>