Command line Maven and m2eclipse work together?

I want to save disk space (SSD) as well as maven processing time. I have however the impression that my command line maven (on Arch Linux installed with package manager pacman) and my Eclipse Maven plugin don't work together, because I have both a big ~/.m2 folder (2GB) as well as a big workspace/.metadata/.plugins/org.eclipse.m2e.core folder (500 MB).

Is my impression correct that they are separated and thus do everything the other did again, wasting both space and time, and if yes, is there a way to connect these two together?


The ~/.m2 directory is the local maven repository where all you project dependencies files are downloaded in a structured way. Its same for both command line maven and eclipse maven. The directory workspace/.metadata/.plugins/org.eclipse.m2e.core only has files related to m2e plugin metadata & it doesn't have the repository files like .m2 directory.

The local maven repository remains same for command line as well as m2e until specified. you can read more on maven repositories here

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