Re: [gentoo-amd64] Re: simulating apt-get on gentoo

[Daiajo Tibdixious]

dpkg has a native gentoo version app-arch/dpkg but dpkg --unpack gave an error.
However ar x worked fine.
Ended up with usr/bin/runescape-launcher which is fine, but also
usr/share stuff which I'll check for collisions.
(this is all in /var/tmp)

Thanks very much, you saved me much trouble.

Not sure if its just me, but apt is written in c++ using mostly C
constructs, and doesn't seem to have been through an oo design.
Makes it very weird to try to follow.

I won't be able to install/run it today due to being busy.

On Tue, Apr 19, 2016 at 10:56 AM, Jonathan Callen <jcallen@g.o> wrote:
> On 04/18/2016 08:49 AM, Mark Knecht wrote:
>> On Mon, Apr 18, 2016 at 5:40 AM, Daiajo Tibdixious
>> <daiajo@×××××.com> wrote:
>>
>>> A package I wish to download has these instructions:
>>>
>>> wget -O -
>>> http://content.runescape.com/a=946/downloads/ubuntu/runescape.gpg.key
>>>
>>>
> | apt-key add -
>>> mkdir -p /etc/apt/sources.list.d echo "deb
>>> http://content.runescape.com/a=946/downloads/ubuntu trusty
>>> non-free" > /etc/apt/sources.list.d/runescape.list apt-get
>>> update apt-get install -y runescape-launcher
>>>
>>> I have downloaded the apt sources and have been reading it.
>>> However its fairly large & complex which will take me a while to
>>> figure out. The gpg key was fairly easy, but I don't see how
>>> apt-get uses it yet. I also don't see how apt gets the list of
>>> files to download, since there is only a directory given. I can't
>>> displayhttp://content.runescape.com/a=946/downloads/ubuntu in a
>>> browser.
>>>
>>> Just wondering if anyone has anything helpful to shorten the
>>> process of figuring it out. I'm planning to create a cut down
>>> apt-get which just fetches the files, but don't have much time
>>> most days.
>>>
>>>
>> In my experience if you're running Gentoo you're better off staying
>> in the Gentoo package framework and finding the app you want in a
>> portage overlay:
>>
>> https://gpo.zugaina.org/games-rpg/unix-runescape-client
>>
>
> To approximate what the apt-get client actually does; first download
> "http://content.runescape.com/a=946/downloads/ubuntu/trusty/Release"
> (URL given + distversion + "/Release); note the MD5/SHA1/SHA256 checksums.
>
> Download the 64-bit Packages file from
> "http://content.runescape.com/a=946/downloads/ubuntu/dists/trusty/non-free/binary-amd64/Packages",
> this will give the name/version/dependencies for every package
> distributed from that repo.
>
> From that file, find the "Filename:" field, append that directly to
> the URL they gave, so
> "http://content.runescape.com/a=946/downloads/ubuntu/pool/non-free/r/runescape-launcher/runescape-launcher_2.2.2_amd64.deb".
>
> This file declares the following dependencies:
>
> Ubuntu
>         Gentoo Equivalent
> libsdl2-2.0-0 (>= 2.0.2+dfsg1-3ubuntu1.1)
>         >=media-libs/libsdl2-2.0.2
>         [This doesn't appear to actually be used by the executable]
> libglew1.10 (>= 1.10.0-3)
>         >=media-libs/glew-1.10.0:0/1.10
>         [This doesn't appear to actually be used by the executable]
> libc6 (>= 2.19-0ubuntu6.6)
>         >=sys-libs/glibc-2.19
> libcurl3-gnutls (>= 7.35.0-1ubuntu2.5)
>         >=net-misc/curl-7.35.0
> libstdc++6 (>= 4.8.4-2ubuntu1~14.04)
>         >=sys-devel/gcc-4.8.4[cxx]
> libgcc1 (>= 1:4.9.1-0ubuntu1)
>         >=sys-devel/gcc-4.9.1
> libvorbisenc2 (>= 1.3.2-1.3ubuntu1)
>         >=media-libs/libvorbis-1.3.2
>         [This doesn't appear to actually be used by the executable]
> libwebkitgtk-1.0-0 (>= 2.4.8-1ubuntu1~ubuntu14.04.1)
>         >=net-libs/webkit-gtk-2.4.8:2 (I think)
>
> The package also depends on the following shared libraries, not
> exposed above:
>
> dev-libs/glib:2
>         libglib-2.0.so.0
>         libgobject-2.0.so.0
> media-libs/libpng:1.2
>         libpng12.so.0
> x11-libs/libXxf86vm
>         libXxf86vm.so.1
> x11-libs/gtk+:2
>         libgdk-x11-2.0.so.0
>         libgtk-x11-2.0.so.0
> x11-libs/gdk-pixbuf:2
>         libgdk_pixbuf-2.0.so.0
> x11-libs/libX11
>         libX11.so.6
> x11-libs/cairo
>         libcairo.so.2
> x11-libs/libSM
>         libSM.so.6
> x11-libs/pango
>         libpango-1.0.so.0
>         libpangocairo-1.0.so.0
>
> To extract the .deb, if you don't have dpkg installed, you can use `ar
> x ./runescape-launcher_2.2.2_amd64.deb data.tar.xz` to get a tarball
> named "data.tar.xz" that contains the actual binary package.
>
> Note that the only thing that was really Gentoo-specific in the above
> was the mapping of libraries to package names/slots/versions.
> Everything else is "Generic Linux amd64" :).
>
> --
> Jonathan Callen
>