Question regarding packaging standalone java jar's.

[Eric Griffith]

Hey all,

First off, let me just get this out of the way: Not looking to get
this package into the repo's or even into RPMFusion, I'm just playing
around to help myself learn and I had this on hand.

Trying to package Minecraft (which comes as a single Minecraft.jar), a
desktop file for minecraft, and an icon file.

Minecraft.jar, minecraft.desktop and minecraft.png are just sitting in
my SOURCES directory. When I run: "rpmbuild -ba Minecraft.spec" I get
yelled at about:

File not found:
/home/egriffith/rpmbuild/BUILDROOT/Minecraft-1.0-1.fc21.x86_64/usr/bin/Minecraft.jar

    File not found:
/home/egriffith/rpmbuild/BUILDROOT/Minecraft-1.0-1.fc21.x86_64/usr/share/applications/minecraft.desktop

    File not found:
/home/egriffith/rpmbuild/BUILDROOT/Minecraft-1.0-1.fc21.x86_64/usr/share/icons/hicolor/256x256/apps/minecraft.png

Go check out the BUILDROOT directory and its blank. Fair enough, I
didn't tell it to copy or create anything, so I'm not surprised.

I'm assuming that i should be creating the directory structure under
%prep, yes? via "mkdir -p" but wouldn't it then get deleted when
%install happened? and what would even be the correct command
sequence? $RPM_BUILD_ROOT/%{_bindir}/ ? then copy %source0 into said
directory?

The spec file is copied below


[BEGIN SPEC FILE]
Name:           Minecraft
Version:        1.0
Release:        1%{?dist}
Summary:        Sandbox adventure game by Mojang AB

License:        Mojang Minecraft EULA
URL:
https://s3.amazonaws.com/Minecraft.Download/launcher/Minecraft.jar
Source0:        Minecraft.jar
Source1:    minecraft.desktop
Source2:    minecraft.png

BuildRequires:  java
Requires:      java

%description
"Java based Sandbox adventure game written by Mojang AB."


%prep


%build


%install
rm -rf $RPM_BUILD_ROOT

%files
%{_bindir}/Minecraft.jar
%{_prefix}/share/applications/minecraft.desktop
%{_prefix}/share/icons/hicolor/256x256/apps/minecraft.png



%changelog
* Sun Mar  1 2015 Eric Griffith
-
[END OF SPEC FILE]

Any help would be appreciated guys & gals. As I said, I'm just trying
to learn and experiment with different things.

[Toshio Kuratomi]

On Mon, Mar 02, 2015 at 04:46:47PM -0500, Eric Griffith wrote:
>  Hey all,
>  
>  First off, let me just get this out of the way: Not looking to get
>  this package into the repo's or even into RPMFusion, I'm just playing
>  around to help myself learn and I had this on hand.
>   
[snip]
>  I'm assuming that i should be creating the directory structure under
>  %prep, yes? via "mkdir -p" but wouldn't it then get deleted when
>  %install happened? and what would even be the correct command
>  sequence? $RPM_BUILD_ROOT/%{_bindir}/ ? then copy %source0 into said
>  directory?
>  
%prep is for preparing to build.  So things like untarring source files and
applying patches.

%build is for actually building.

%install is for putting things into the %{buildroot} (aka $RPM_BUILD_ROOT).

So in your example, since there is no source (you're just dropping the files
you retrieved into the filesystem), you'd want to do your mkdir -p and cp -p
SOURCEFILE %{buildroot}/DESTINATION_DIR/FILENAME in %install.

-Toshio