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https://issues.apache.org/jira/browse/MNG-5977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15163835#comment-15163835
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Michael Osipov commented on MNG-5977:
-------------------------------------
Another improvement has been added with
[33442c212b5e5c29feb0101d70a625cea7845ea7|https://git-wip-us.apache.org/repos/asf?p=maven.git;a=commit;h=33442c212b5e5c29feb0101d70a625cea7845ea7].
> Improve output readability of our MavenTransferListener implementations
> -----------------------------------------------------------------------
>
> Key: MNG-5977
> URL: https://issues.apache.org/jira/browse/MNG-5977
> Project: Maven
> Issue Type: Improvement
> Components: Command Line, Embedding
> Affects Versions: 3.3.9
> Reporter: Michael Osipov
> Assignee: Michael Osipov
> Fix For: 3.4.0
>
> Attachments: current.zip, improved.zip, improved.zip
>
>
> The current output of Downloading/Downladed/Uploading/Uploaded transfer
> notification has some flaws:
> 1. It does not scale numbers between 1 and 1000 with appropriate units
> 2. It should use correct size ({{kB}}, {{MB}}, {{GB}} and time units ({{s}})
> but doesn't. (see https://en.wikipedia.org/wiki/Binary_prefix and
> https://en.wikipedia.org/wiki/Metric_prefix)
> 3. When Aether downloads in parallel (which applies for non-POM files) the
> progress interleaves due to race conditions to {{System.out}} and you do not
> know to which resource a progress belongs to.
> Let's use an improved version of MPIR {{DependenciesRenderer}}'s
> [{{FileDecimalFormat}}|https://github.com/apache/maven-plugins/blob/trunk/maven-project-info-reports-plugin/src/main/java/org/apache/maven/report/projectinfo/dependencies/renderer/DependenciesRenderer.java#L1583]
> for it.
> concrete examples:
> before
> {noformat}191/191 KB 27/48 KB 48/119 KB 80/87 KB 13/13 KB {noformat}
> after:
> {noformat}Progress (4): 500/800 B | 40/45 kB | 193 kB/315 kB | 1.3/9 MB |
> 12/30 MB{noformat}
> if total size is unavailable or the file has already been downloaded but not
> removed from the list, the output will be:
> {noformat}Progress (4): 800 B | 40/45 kB | 193 kB | 9 MB | 12 MB{noformat}
> or in debug mode:
> {noformat}Progress (5): xml-apis-1.3.04.jar (<progress>) |
> maven-shared-utils-0.6.jar (<progress>) | xercesImpl-2.9.1.jar (<progress>) |
> commons-digester-1.6.jar (<progress>) | maven-reporting-impl-2.3.jar
> (<progress>){noformat}
> If the scale is between 1 and 10, one decimal position will be printed out.
> If it is between 10 and 1000, it will be an integer.
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