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https://issues.apache.org/jira/browse/MSHADE-249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15863567#comment-15863567
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Michael Osipov commented on MSHADE-249:
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This makes sense, the shader should retain as much metadata as possible.
> Consistent dates in the jar entries
> -----------------------------------
>
> Key: MSHADE-249
> URL: https://issues.apache.org/jira/browse/MSHADE-249
> Project: Maven Shade Plugin
> Issue Type: New Feature
> Reporter: Javier Sigler
>
> Nowadays, Java developers often create Docker images attaching the uberjar or
> collections of jars to the docker image. However, these jars are time
> dependant. In other words, each time you create a jar, it has a different
> hash even though the code is actually the same. This feature leads to the
> creation of multiple docker image for the same code, significantly increasing
> the deploy time.
> The two reasons that makes the different hashes are:
> 1. jar entries contains the creation timestamp in at least the last modified
> attribute.
> 2. each uberjar usually contains an automatically generated property file
> with a timestamp located in {{META-INF/maven/$\{package}/pom.properties}}
> The goal of this feature is to solve the first problem giving a consistent
> date to all the jar entries.
> I take the liberty of create a github repository with the suggested change in
> the plugin to accomplish this feature
> https://github.com/javiersigler/apache-maven-shade-plugin
> In addition, you could find in the repository a solution of the second
> problem.
> I hope you could find it useful.
> Thank you in advance.
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