Set minimum dependencies for Debian packages.

[jgiszczak]

Change Description

Set minimum dependencies for Debian packages. Also ensure Debian subdirectory has correct permissions regardless of umask while packaging. Resolves #6618.

Consensus Changes

N/A

API Changes

N/A

Documentation Additions

N/A

[spoonincode]

Would it be a better approach to derive the value from something like
ldd nodeos | grep libssl.so.1.1
So we didn't have to baby the script on new releases? Hard to say... new releases may do something wildly different anyways. I think I'm mostly indifferent, at least this gets us the correct values for the two versions we support.

[jgiszczak]

I used

$ ldd ./nodeos | awk '/=>/{print $(NF-1)}' | while read n; do dpkg-query -S $n; done | sed 's/^\([^:]\+\):.*$/\1/' | sort | uniq

(and again for keosd and cleos) to compose the dependency list and even that results in a spurious error from dpkg-query, as the '=>' from ldd isn't successfully filtered out. That mess comes very close, but I hesitate to call it robust enough to use it as a fire and forget package builder. That's what debhelper is for.