我將Maven項目與現有的自定義Checkstyle規則集合在一起,編譯爲jar並在Nexus存儲庫中提供。規則集對Checkstyle 5.0有依賴性,並且與新版本不兼容。如何在Maven構建中使用較舊的Checkstyle版本?
我在配置Maven時使用這個較舊的Checkstyle版本和我的規則時遇到了問題。
這裏是我的項目佈局:
root/
pom.xml
buildsupport/
pom.xml
src/main/resources/checkstyle
mycompany-coding-rules.xml
src/main/java/com.mycompany.checkstyletest/
CheckstyleViolator.java
[other projects with pom.xml and java source...]
這是我的父母pom.xml
:
<project>
...
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>2.5</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
...
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-site-plugin</artifactId>
<version>3.0</version>
<dependencies>
<dependency>
<groupId>com.mycompany</groupId>
<artifactId>buildsupport</artifactId>
<version>X.Y.Z</version>
</dependency>
<dependency>
<groupId>checkstyle</groupId>
<artifactId>checkstyle</artifactId>
<version>5.0</version>
</dependency>
<dependency>
<groupId>com.mycompany.checkstyle</groupId>
<artifactId>mycompany-checkstyle</artifactId>
<version>1.1</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>2.5</version>
<configuration>
<configLocation>checkstyle/mycompany-coding-rules.xml</configLocation>
<packageNamesLocation>checkstyle_packages.xml</packageNamesLocation>
</configuration>
</plugin>
</plugins>
</reporting>
...
如果我忽略從Maven的的CheckStyle-插件<version>2.5</version>
在<reporting><plugins><plugin>...
和<build><pluginManagement><plugins><plugin>
,並運行mvn site
在根目錄中,我得到頂級項目的失敗:
...
[INFO] Generating "Checkstyle" report --- maven-checkstyle-plugin:2.8
...
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.0:site (default-site) on project mytoplevel-project:
Error during page generation: Error rendering Maven report: Failed during checkstyle configuration:
cannot initialize module TreeWalker - TreeWalker is not allowed as a parent of com.mycompany.checkstyle.checks.coding.ImportOrderCheck -> [Help 1]
添加<version>2.5</version>
在上面的XML允許頂級項目成功,但同樣的錯誤是出現在第一個孩子的項目:
...
[INFO] Generating "Checkstyle" report --- maven-checkstyle-plugin:2.5
...
[INFO] mytoplevel-project ................................ SUCCESS [4.528s]
[INFO] buildsupport ...................................... FAILURE [0.489s]
...
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.0:site (default-site) on project buildsupport:
Error during page generation: Error rendering Maven report: Failed during checkstyle configuration:
cannot initialize module TreeWalker - TreeWalker is not allowed as a parent of com.mycompany.checkstyle.checks.coding.ImportOrderCheck -> [Help 1]
我敢肯定這個錯誤是由於最新當使用規則集作爲針對Checkstyle 5.5的Eclipse插件時,我看到了同樣的錯誤 - 它通過將Checkstyle插件版本回滾到5.0來修復。
我不明白的是孩子項目如何挑選錯誤的Checkstyle版本。