Maven 找不到 .git (dotGitDirectory)

Maven cannot find .git (dotGitDirectory)

提问by Vic K

I have an issue similar to what has been asked here, but there is no answer. Have following structure in maven project (which is standard):

我有一个类似于这里提出的问题，但没有答案。在 maven 项目中具有以下结构（这是标准的）：

parent-pom - which is a parent for all others
    |_reactor - which is a concrete project, parent-pom is a parent
        |_module_1 - reactor is a parent
        |_module_2
        ...
        |_module_n

git-commit-id-plugin is configured in parent-pom and nowhere else.

git-commit-id-plugin 在 parent-pom 中配置，没有其他地方。

Until recently everything was fine: I was able to build both the whole reactor project and all modules separately with mvn clean install. Then I added a new module (let's say module_n1), I believe the build had been going fine until massive merge. Now I got following situation: reactor build is successful, each module separately from 1 to n builds successfully as well. But module_n1 fails with following error:

直到最近一切都很好：我能够使用 mvn clean install 分别构建整个反应堆项目和所有模块。然后我添加了一个新模块（假设 module_n1），我相信构建一直进行得很顺利，直到大规模合并。现在我得到了以下情况：反应堆构建成功，每个模块从 1 到 n 分别构建成功。但是 module_n1 失败并出现以下错误：

 [ERROR] Failed to execute goal pl.project13.maven:git-commit-id-plugin:2.1.7:revision (default) on project module_n1: .git directory could not be found! Please specify a valid [dotGitDirectory] in your pom.xml

There is a .git folder under reactor module. As an experiment I removed it and get the same error for other modules.

在 reactor 模块下有一个 .git 文件夹。作为一个实验，我删除了它并在其他模块上得到相同的错误。

What could be a reason why one particular module cannot find .git folder during the build?

某个特定模块在构建过程中找不到 .git 文件夹的原因可能是什么？

Thanks.

谢谢。

回答by Samuel Kerrien

I bumped into this problem today and the solution is pretty clear looking at this well documented maven plugin:

我今天遇到了这个问题，通过查看这个有据可查的 maven 插件，解决方案非常清楚：

https://github.com/ktoso/maven-git-commit-id-plugin

Here you have declared the plugin in 'module_n1' and there is no .git directory in that folder. The solution would be to configure the plugin as follow if the .git directory is in the parent directory (eg. reactor):

在这里，您已在“module_n1”中声明了插件，并且该文件夹中没有 .git 目录。如果 .git 目录位于父目录（例如 reactor），则解决方案是按如下方式配置插件：

        <plugin>
            <groupId>pl.project13.maven</groupId>
            <artifactId>git-commit-id-plugin</artifactId>
            <version>2.1.15</version>
            <executions>
                <execution>
                    <goals>
                        <goal>revision</goal>
                     </goals>
                </execution>
            </executions>
            <configuration>
                <dotGitDirectory>${project.basedir}/../.git</dotGitDirectory>
                <!-- more config here as you see fit -->
            </configuration>
        </plugin>

回答by Raja Anbazhagan

Since version 2.0.4The flag failOnNoGitDirectoryis trueby default. Set the flag to falseto make sure this goal is skipped when .gitdirectory doesn't exist.

由于 version2.0.4标志failOnNoGitDirectory是true默认的。将标志设置为false确保在.git目录不存在时跳过此目标。

<build>
    <plugins>
        <plugin>
            <groupId>pl.project13.maven</groupId>
            <artifactId>git-commit-id-plugin</artifactId>
            <configuration>
                <failOnNoGitDirectory>false</failOnNoGitDirectory>
            </configuration>
        </plugin>
    </plugins>
</build>

The plugin has an internal logic of searching for .gitrepositories in the current and parent directories of the project. I wouldn't worry much if the multi-module project sits under the same git repository.

该插件具有.git在项目的当前目录和父目录中搜索存储库的内部逻辑。如果多模块项目位于同一个 git 存储库下，我不会太担心。

回答by charlb

Not a solution, but if you want to skip git-commit-id-plugin execution defined in a parent pom until project is added to git, you can override execution in your pom.

不是解决方案，但如果您想跳过父 pom 中定义的 git-commit-id-plugin 执行，直到将项目添加到 git，您可以覆盖 pom 中的执行。

        <pluginManagement>
        <plugins>
            <plugin>
                <groupId>pl.project13.maven</groupId>
                <artifactId>git-commit-id-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
        </plugins>
    </pluginManagement>

回答by Florian Lavorel

Updating maven to the latest version fixed the problem for me.

将 maven 更新到最新版本为我解决了这个问题。

回答by user1742058

I ran into something similar in a clean build system and it may be related to their not being a git user "installed". On my local, I see

我在干净的构建系统中遇到了类似的问题，这可能与他们不是“安装”的 git 用户有关。在我的本地，我看到

[info]git.build.user.name=myuser

[信息]git.build.user.name=myuser

etc, but nothing like that on the clean system.

等等，但在干净的系统上没有类似的东西。