It generates enough structure to scale up to reasonable projects. The nesting is a price well worth paying for consistency. Every maven project puts its source in the same structure, with the result that you can jump into any project and know how its build will work and where to find the source.
> All of this stuff is verbose and built to be generated by IDEs. It's not clear, it's not concise.
Verbose is worth it for clarity, particularly in a file you edit rarely. It may not be concise but it absolutely is clear, as the example from your own link shows.
I've never seen a barebones project as you would when using just node+npm without all the extra tooling (webpack and friends). Node+npm is to me as simple as python+pip. Is there a natural counterpart, Java+maven or something?
And to be fair. All my attempts at approaching webpack have been even worse. And most JS-framework seed projects are similarly complex and automagical.
The grandparent linked to the maven getting started, https://maven.apache.org/guides/getting-started/maven-in-fiv... . That shows what the minimum looks like - a pom.xml, and application source code in src/main/java (under its package structure). (The unit test isn't strictly necessary but is good practice).
The pom's XML header and modelVersion are boilerplate, but the rest is pretty clear and self-explanatory (though admittedly verbose).
At that point for a library project you're sorted, for an application you can run your program via "mvn exec:java" which is adequate for development. To actually package up your application for distribution you probably want to use the shade plugin a la https://maven.apache.org/plugins/maven-shade-plugin/examples... , but that's something you'd do as part of "productionisation". (Back when I worked at an early-stage startup we had things running and serving user requests via "mvn exec:java")
I've encountered a bit of this with most AOT-compiled stuff except for Go. Make or compiler-flags also requires a bit of learning to get going.
Most dynamic languages tend to be more straight-forward with this.
That's kind of our way to do virtualenv-like functionality, which is mandatory rather than optional. (Or you can specify the classpath manually in the same way you would for the pythonpath, but no-one wants to do that). IMO that's the right thing - having libraries installed in my system python has only ever caused trouble in the long- or even medium-term, even if it makes "hello world" use of libraries very slightly simpler.
There's probably a way to get a shell with the classpath set up correctly, but I always found that kind of modalness more confusing than helpful.
> I've encountered a bit of this with most AOT-compiled stuff except for Go. Make or compiler-flags also requires a bit of learning to get going.
In my experience it does all work without any flags or extra knowledge. "mvn" is the entry point for all the things you want to do - you don't ever have to know that there's a "java" and "javac" underlying it.
It generates stupidly deep structure because Java requires a stupidly deep structure.
> Every maven project puts its source in the same structure, with the result that you can jump into any project and know how its build will work and where to find the source.
Rust, Elixir and Erlang achieve this with tooling that is practically trivial to use. Without an IDE.
> Verbose is worth it for clarity, particularly in a file you edit rarely.
Being concise is a big factor in clarity.
All of the depth is useful. The folder structure corresponding to the package structure makes it much easier to find the source for something.
> Being concise is a big factor in clarity.
True when there is large-scale structure that varies for the reader to comprehend. Less important in an inert declarative structure. Again, look to the example you linked.
Because they are honest. Maybe it is because I'm more accustomed to poms, but the package.json/babelrc mix and webpack.config.jsons are daunting to me too.
Ah, I can see how this is much more complicated than the good old
npm install webpack babel-loader babel-core babel-preset-es2015 babel-preset-react --save-dev
https://maven.apache.org/guides/getting-started/maven-in-fiv...
Maven quick start first command:
> mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
Then it generates stupidly deep Java structure.
and next you have to write a verbose xml. They even say:
> The POM is huge and can be daunting in its complexity
All of this stuff is verbose and built to be generated by IDEs. It's not clear, it's not concise.