[jira] [Comment Edited] (MBUILDCACHE-47) Extension computes a new check sum for a project with multiple modules without any changes

["Venelin Koulaxazov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MBUILDCACHE-47?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17706524#comment-17706524 ] 

Venelin Koulaxazov edited comment on MBUILDCACHE-47 at 3/29/23 5:51 PM:
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Adding the property in the pom of this module seems to have done the trick actually! Thank you for this pointer [~maximiln] !

 

Very quickly before I close the bug, if I make a small change in code in one of the modules it will effectively recompile it entirely and not only the single file that changed. Is there something in the roadmap for this extension to recompile only what has changed or we're hitting limitations around the maven tool itself and how things are packaged in the resulting .jar file


was (Author: JIRAUSER299290):
Adding the property in the pom of this module seems to have done the trick actually! Thank you for this pointed [~maximiln] !

 

Very quickly before I close the bug, if I make a small change in code in one of the modules it will effectively recompile it entirely and not only the single file that changed. Is there something in the roadmap for this extension to recompile only what has changed or we're hitting limitations around the maven tool itself and how things are packaged in the resulting .jar file

> Extension computes a new check sum for a project with multiple modules without any changes
> ------------------------------------------------------------------------------------------
>
>                 Key: MBUILDCACHE-47
>                 URL: https://issues.apache.org/jira/browse/MBUILDCACHE-47
>             Project: Maven Build Cache Extension
>          Issue Type: Bug
>          Components: remote build cache
>            Reporter: Venelin Koulaxazov
>            Priority: Critical
>         Attachments: api-module-v1.xml, api-module-v2.xml, parent-module-v1.xml, service-module-v1.xml, service-module-v2.xml
>
>
> I have a maven project with 2 modules and a parent pom as such
> {code:java}
> <modules>
>     <module>api</module>
>     <module>service</module>
> </modules> {code}
> I would like to take advantage of the maven cache extension and I've added it in the build section of the parent pom as such
> {code:java}
> <extensions>
>     <extension>
>         <groupId>org.apache.maven.extensions</groupId>
>         <artifactId>maven-build-cache-extension</artifactId>
>         <version>1.0.0</version>
>      </extension>
> </extensions> {code}
> I've also added a maven-build-cache-config.xml file however it would seem that every time I run {{mvn clean package}} a different checksum is generated for my submodules and as a result I don't actually benefit from the caching since all my java files are in those submodules
> I've tried multiple configs with no luck unfortunately
> {code:java}
> <?xml version="1.0" encoding="UTF-8" ?>
> <cache xmlns="http://maven.apache.org/BUILD-CACHE-CONFIG/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>        xsi:schemaLocation="http://maven.apache.org/BUILD-CACHE-CONFIG/1.0.0 http://maven.apache.org/xsd/cache-config-1.0.0.xsd">
>     <configuration>
>         <enabled>true</enabled>
>         <hashAlgorithm>XX</hashAlgorithm>
>     </configuration>
>     <input>
>         <global>
>             <glob>{*.java,*.xml,*.properties}</glob>
>             <includes>
>                 <include>recursive=api/*</include>
>                 <include>recursive=service/*</include>
>             </includes>
>         </global>
>     </input>
> </cache> {code}
> How can I make this extension actually cache the contents of my submodules with the same checksum if there haven't been changes. I know this extension is fairly recent and I haven't been able to find any hits online.
> *EDIT*
> Commenting one of the child modules out, actually ended up working and the cache is kicking in correctly. Is it possible there's a limitation to the extension in that it scans for a single module?



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