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https://issues.apache.org/jira/browse/MSITE-971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17743453#comment-17743453
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Brad Larrick commented on MSITE-971:
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[~michael-o] , I've uploaded a project that demonstrates the issue:
[https://github.com/bradleylarrick/site-plugin-example]
This is all for personal projects, so I don't use the Maven Release Plugin, but
I still like to maintain reproducibility.
> Site generation not resolving git.commit.time
> ---------------------------------------------
>
> Key: MSITE-971
> URL: https://issues.apache.org/jira/browse/MSITE-971
> Project: Maven Site Plugin
> Issue Type: Bug
> Components: property interpolation
> Affects Versions: 4.0.0-M9
> Environment: Windows 10 and FreeBSD
> Reporter: Brad Larrick
> Priority: Major
>
> I'm using git-commit-id-maven-plugin to set project.build.outputTimestamp as
> suggested in the Maven Guide Configuring for Reproducible Builds. I've
> included the plugin in my pom and including the following property definition:
>
> {code:java}
> <project.build.outputTimestamp>${git.commit.time}</project.build.outputTimestamp>{code}
>
> When I generate the site, the plugin fails with the message:
> {{site failed: Invalid project.build.outputTimestamp value
> '${git.commit.time}}}
> This configuration works properly in the maven-jar-plugin, so I did some
> investigation. The jar plugin is getting the outputTimestamp as a mojo
> parameter:
>
> {code:java}
> @Parameter( defaultValue = "${project.build.outputTimestamp}" )
> private String outputTimestamp;
> {code}
> This works properly, with outputTimestamp set to the last commit time.
> In the site-plugin code, the outputTimestamp is being pulled from the project
> properties:
> {code:java}
> String outputTimestamp =
> p.getProperties().getProperty("project.build.outputTimestamp");{code}
> In the case the property hasn't been resolved and the returned string is
> ${git.commit.time}.
>
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