Fetch asset file licenses automatically

[calebhailey]

WORK IN PROGRESS

Debian:

• Find the package name of any file on disk:

  dkpg -S /usr/lib/x86_64-linux-gnu/libssl.so.1.0.2

• Find the copyright & license information for the file (requires package name):

  cat /usr/share/doc/<package_name>/copyright 

Centos:

• Find the package name of any file on disk:

  rpm -qf /usr/lib64/libssl.so.1.0.2k

• Find the copyright & license information for the file (requires package name):

  cat /usr/share/licenses/<package_name>/<LICENSE|COPYING|license.txt|...>