Posix.get_package_information fails to parse package version if it does not follow semver

[trungams]

The current implementation of Posix.get_package_information uses the package manager for a distro to query for a package information, then uses some regexes to force parse the package version into semver. This logic fails if a package does not follow semantic versioning for their versioning scheme. Example for Azure Linux (which uses rpm):

>>> import re
>>> r = re.compile(
           r"(?P<package_name>[a-zA-Z0-9\-_]+)-"
           r"(?P<major>[0-9]+)\."
           r"(?P<minor>[0-9]+)\.?"
           r"(?P<patch>[0-9]+)?"
           r"(?P<build>-[a-zA-Z0-9-_\.]+)?"
       )
>>> print(r.search("systemd-255-20.azl3.x86_64"))
None

Suggestion: query the version directly using a distro's package tool/manager (dpkg/apt, rpm, etc), then return the raw version string as part of the result. If there is any logic to check versioning of a package, that logic can be implemented for each distro. Here is an example of how one can query a package version for debian and rpm based systems:

• Debian: dpkg-query -f '${Version}' -W <pkg>
• RPM: rpm --queryformat '%{VERSION}-%{RELEASE}' -q

I demoed this change in commit 365ce35, adding a new function _query_package since I don't want to change existing code yet. Please let me know your thoughts.

[squirrelsc]

Thank you, @trungams . Replied in the PR.