Required a dpkg status file

We know that Ubuntu has 60,000 + packages.

I may not require all those but want a dpkg status file containing all the possible packages information listed.

I have a customized Linux where I manually hardcoded the utilities unlike installing through apt. So I don't have a status file with the packages. Now I want to create it manually so that when I query for the list of packages it gives the information of the utilities/packages what I have.

If I can get the status file with all the possible packages available for Ubuntu structured in a standard format like below, then I can edit that file and use it on my machine.

example format:

Package: libvorbisfile3
Status: install ok installed
Priority: optional
Section: libs
Installed-Size: 55
Maintainer: Ubuntu Developers 
Architecture: amd64
Multi-Arch: same
Source: libvorbis
Version: 1.3.5-4.2
Depends: libc6 (>= 2.14), libogg0 (>= 1.1.0), libvorbis0a (= 1.3.5-4.2)
Description: high-level API for Vorbis General Audio Compression Codec
 Ogg Vorbis is a fully open, non-proprietary, patent-and-royalty-free,
 general-purpose compressed audio format for audio and music at fixed
 and variable bitrates from 16 to 128 kbps/channel.
 .
 The Vorbisfile library provides a convenient high-level API for decoding
 and basic manipulation of all Vorbis I audio streams.
Original-Maintainer: Debian Xiph.org Maintainers 
Homepage: http://www.xiph.org/vorbis/

The files in that format are located in /var/lib/apt/lists.

Not exactly that format but a close one that could be modified:

Package: libvorbisfile3
Priority: optional
Section: libs
Installed-Size: 59
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Debian Xiph.org Maintainers <pkg-xiph-maint@lists.alioth.debian.org>
Architecture: amd64
Source: libvorbis
Version: 1.3.5-3
Depends: libc6 (>= 2.14), libogg0 (>= 1.1.0), libvorbis0a (= 1.3.5-3)
Filename: pool/main/libv/libvorbis/libvorbisfile3_1.3.5-3_amd64.deb
Size: 15876
MD5sum: b28aab7326b5ed38bd0891923ad0f234
SHA1: 07b978b831d4a47cf5b1efa5fd62a0bb7981902c
SHA256: bfd6eec22191bffef0874d8890afd6503c2ca541abc2b2b1e44e80135f7fd0af
Description: high-level API for Vorbis General Audio Compression Codec
Multi-Arch: same
Homepage: http://www.xiph.org/vorbis/
Description-md5: 12cd648fe3db0c63fff144f4ce158c03
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Supported: 5y
Task: ubuntu-desktop, ubuntu-usb, kubuntu-desktop, kubuntu-full, edubuntu-desktop, edubuntu-usb, xubuntu-core, xubuntu-desktop, mythbuntu-frontend, mythbuntu-desktop, lubuntu-core, ubuntustudio-desktop-core, ubuntustudio-desktop, ubuntu-gnome-desktop, ubuntukylin-desktop, ubuntu-mate-core, ubuntu-mate-desktop, ubuntu-mate-cloudtop

Every Debian/Ubuntu repository has package index which is split by release, channel and architecture, usually called Packages.gz or Packages.xz.

For your requirement, it should be enough. But to be complete there is also Contents-arch.gz which contains listing of all files in packages.

You can download them manually or using a tools like: apt, apt-file or more advanced tool like chdist (see this post)