Composer nested requirements log

Question

How can i make composer verbose, so that i get a report like that:

 Problem 1
    - package "foo/bar" requested the package "contao/core == 3.5.31.0" which could not be found.

To be clear, my current report look like

Problem 1
    - The requested package contao/core == 3.5.31.0 could not be found.

But which of my 100+ Requirements need this package?

Answer 1

Has the composer.lock been written? Then you could try to call composer why contao/core to see which package required contao.

Have a look at the documentation for that command - using --tree gives you a tree of the dependency graph which might be interesting if it is a nested dependency