How can I view all the nested dependencies of a package in Ubuntu? For example, hadoop-yarn-resourcemanager depends on hadoop-yarn which has its own dependencies:
$ sudo apt-cache depends hadoop-yarn-resourcemanager
hadoop-yarn-resourcemanager
Depends: hadoop-yarn
$ sudo apt-cache depends hadoop-yarn
hadoop-yarn
Depends: libc6
Depends: adduser
Depends: bigtop-utils
Depends: hadoop
Depends: avro-libs
Depends: zookeeper
I am looking for something like below, somewhat similar to mvn dependency:tree
hadoop-yarn-resourcemanager
Depends: hadoop-yarn
Depends: libc6
Depends: adduser
Depends: bigtop-utils
Depends: hadoop
Depends: avro-libs
Depends: zookeeper
I have seen this question: How to list all dependencies of a Package on Linux?, but I am looking for complete dependency tree.
Well, there is the apt-cache dotty command, which will generate a graphviz representation of the package's dependencies. However, this is going to be less useful than you think: there are a lot of "core packages" that are going to be required by just about everything, and the resulting graphs will be quite large.
The dot syntax is relatively simple; you could probably parse that yourself to extract a subset of the information.