[MNG-7941] Meaning of -ntp CLI Option vs. --batch-mode

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.9.5, 4.0.0-alpha-8
• Fix Version/s: 4.x / Backlog
• Assignee: Unassigned
• Reporter: Karl Heinz Marbaise
• Created: 18/Nov/23 13:42
• Updated: 25/Nov/24 17:12

Description

If you run a maven build while not downloaded all deps or even not downloaded any dependency at all you will see something like this on the console:

Downloading from nexus: http://localhost:8081/nexus/content/groups/public/org/apache/apache/31/apache-31.pom
Progress (1): 7.9/24 kB
Progress (1): 24 kB    
...
Downloading from nexus: http://localhost:8081/nexus/content/groups/public/org/eclipse/jetty/jetty-security/9.4.46.v20220331/jetty-security-9.4.46.v20220331.jar
Progress (3): 106/733 kB | 73/225 kB | 73/184 kB
Progress (3): 139/733 kB | 73/225 kB | 73/184 kB
Progress (3): 139/733 kB | 106/225 kB | 73/184 kB
Progress (3): 172/733 kB | 106/225 kB | 73/184 kB
Progress (3): 172/733 kB | 106/225 kB | 106/184 kB
Progress (3): 204/733 kB | 106/225 kB | 106/184 kB
Progress (3): 204/733 kB | 139/225 kB | 106/184 kB
Progress (3): 204/733 kB | 139/225 kB | 139/184 kB
Progress (3): 237/733 kB | 139/225 kB | 139/184 kB
Progress (3): 237/733 kB | 172/225 kB | 139/184 kB
Progress (3): 237/733 kB | 172/225 kB | 172/184 kB
Progress (3): 237/733 kB | 172/225 kB | 184 kB    
Progress (3): 270/733 kB | 172/225 kB | 184 kB
Progress (3): 270/733 kB | 204/225 kB | 184 kB
Progress (3): 270/733 kB | 225 kB | 184 kB    
Progress (4): 270/733 kB | 225 kB | 184 kB | 7.9/147 kB
Progress (4): 303/733 kB | 225 kB | 184 kB | 7.9/147 kB
...                   

So far as usual..

What you can do to prevent the long outputs is just use: --batch-mode which prevents the output of the progress and the result looks like this:

[INFO] Downloaded from nexus: http://localhost:8081/nexus/content/groups/public/org/apache/maven/doxia/doxia-module-twiki/1.11.1/doxia-module-twiki-1.11.1.jar (73 kB at 1.4 MB/s)
[INFO] Downloading from nexus: http://localhost:8081/nexus/content/groups/public/org/eclipse/jetty/jetty-security/9.4.46.v20220331/jetty-security-9.4.46.v20220331.jar
[INFO] Downloaded from nexus: http://localhost:8081/nexus/content/groups/public/org/eclipse/jetty/jetty-io/9.4.46.v20220331/jetty-io-9.4.46.v20220331.jar (184 kB at 3.4 MB/s)
[INFO] Downloading from nexus: http://localhost:8081/nexus/content/groups/public/org/eclipse/jetty/jetty-util-ajax/9.4.46.v20220331/jetty-util-ajax-9.4.46.v20220331.jar
...

So finally you can use -no-transfer-progress (or -ntp) and the output looks like this:

[INFO] 
[INFO] --- site:3.12.1:attach-descriptor (attach-descriptor) @ maven-dependency-plugin ---
[INFO] Skipping because packaging 'maven-plugin' is not pom.
[INFO] 
[INFO] --- install:3.1.1:install (default-install) @ maven-dependency-plugin ---
..

So based on the naming of --no-transfer-progress which is a bit misleading because the transfer progress output has already been supressed by using --batch-mode.

For Maven 4 we could think about a more cleaner way:

• --batch-mode will not change anything
• --no-transfer-progress will prevent the output of Progress (3): 237/733 kB | 172/225 kB | 172/184 kB (which will really represent the function related to the name).
• --no-download-output could suppress the output as of using -ntp in Maven 3.X

That would be a bit more consistent