Question

我是Maven的新手，我遇到的问题是我是否尝试根据来源是否自动将SCM插件目标从checkout更改为更新已经签出了。

有人能告诉我一个代码示例来实现这个吗？这是插件配置：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-scm-plugin</artifactId>
    <version>1.9.4</version>
        <executions>
            <execution>
                <phase>generate-sources</phase>
                <goals>
                    <goal>checkout</goal>
                </goals>
                <configuration>
                    <connectionType>developerConnection</connectionType>
                    <scmVersion>master</scmVersion>
                    <scmVersionType>branch</scmVersionType>
                    <checkoutDirectory>${project.basedir}/src</checkoutDirectory>
                    <workingDirectory>${project.basedir}/src</workingDirectory>
                </configuration>
            </execution>
        </executions>
</plugin>

Answer 1

更改goal：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-scm-plugin</artifactId>
    <version>1.9.4</version>
        <executions>
            <execution>
                <phase>generate-sources</phase>
                <goals>
                    <goal>update</goal>
                </goals>
                <configuration>
                    <connectionType>developerConnection</connectionType>
                    <scmVersion>master</scmVersion>
                    <scmVersionType>branch</scmVersionType>
                    <checkoutDirectory>${project.basedir}/src</checkoutDirectory>
                    <workingDirectory>${project.basedir}/src</workingDirectory>
                </configuration>
            </execution>
        </executions>
</plugin>

<强>参考
https://maven.apache.org/scm/maven-scm-plugin/
https://maven.apache.org/scm/maven-scm-plugin/update-mojo.html

Answer 2

改变SCM插件的目标的灵感来自ĐỗNhưVý（上图）。

方法是

将目标放在名为scm.goal的属性中，将其设置为默认值即更新。
使用配置文件（引导程序）更改scm.goal属性值 '更新'到'结帐'。
根据缺少的.gitignore文件激活引导程序配置文件。
将属性scm.goal放在SCM插件中目标要素。

代码：

    <properties>
        <scm.dest.path>${project.basedir}/src</scm.dest.path>
        <scm.goal>update</scm.goal>
    </properties>

    <profiles>
        <profile> 
            <id>bootstrap</id> 
            <activation> 
                <file>
                  <missing>./src/.gitignore</missing>
                </file>
             </activation> 
            <properties>
                <scm.goal>checkout</scm.goal>
            </properties>
        </profile>
    </profiles>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-scm-plugin</artifactId>
                <version>1.9.4</version>
                <executions>
                    <execution>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>${scm.goal}</goal>
                        </goals>
                        <configuration>
                            <connectionType>developerConnection</connectionType>
                            <scmVersion>master</scmVersion>
                            <scmVersionType>branch</scmVersionType>
                            <checkoutDirectory>${scm.dest.path}</checkoutDirectory>
                            <workingDirectory>${scm.dest.path}</workingDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
...

如何触发Maven SCM插件根据现有目录自动切换目标？

2 个答案: