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Activity Team/Packaging Ideas (view source)
Revision as of 14:35, 17 March 2009
, 14:35, 17 March 2009no edit summary
= Goal =
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== Goal ==
Installing activities on every sugarized GNU/Linux distribution (not only XO)
Installing activities on every sugarized GNU/Linux distribution (not only XO)
just by clicking on icon in addons.sugarlabs.org.
just by clicking on icon in activities.sugarlabs.org.
= Problems to solve =
== Problems to solve ==
* Install proper dependencies. Most activities rely on a standard set of Sugar dependencies like PyGTK, Squeak, GStreamer, and PyGame. But others have special dependencies which need to be installed on the target system before the activity can run.
* Install proper dependencies. Most activities rely on a standard set of Sugar dependencies like PyGTK, Squeak, GStreamer, and PyGame. But others have special dependencies which need to be installed on the target system before the activity can run.
* Install the activity itself.
* Install the activity itself.
** And in general, how to treat a variety of platforms: x86, x86_64 and future ARM, MIPS?
** And in general, how to treat a variety of platforms: x86, x86_64 and future ARM, MIPS?
= Proposal schemas =
== Proposal schemas ==
== Distro teams should take care of it ==
=== Distro teams should take care of it ===
It could be a meta package which is linked to frequently used dependencies(like csound/pygame/etc).
It could be a meta package which is linked to frequently used dependencies(like csound/pygame/etc).
* thats not enough for the rest of distros <br> each distro team has to work out the same work <br> like inventing theirs own mechanisms to treat activity dependencies etc. [[User:Alsroot|alsroot]] 12:36, 13 January 2009 (UTC)
* thats not enough for the rest of distros <br> each distro team has to work out the same work <br> like inventing theirs own mechanisms to treat activity dependencies etc. [[User:Alsroot|alsroot]] 12:36, 13 January 2009 (UTC)
== Invent-own/reuse-existing packaging format ==
=== Invent-own/reuse-existing packaging format ===
Pro
Pro
* Package managers tend to present confusing user interfaces to the user.
* Package managers tend to present confusing user interfaces to the user.
== Sugar is like a Firefox and activities are like addons ==
=== Sugar is like a Firefox and activities are like addons ===
Pro
Pro
* what about variety of possible dependencies, should we pre-install them all ? [[User:Alsroot|alsroot]] 12:36, 13 January 2009 (UTC)
* what about variety of possible dependencies, should we pre-install them all ? [[User:Alsroot|alsroot]] 12:36, 13 January 2009 (UTC)
== Use distro-specific activities installer ==
=== Use distro-specific activities installer ===
This is a kind of [[#Invent-own/reuse-existing packaging format]] packaging format, but it moves the center of gravity to a distro-specific installer from the packaged activity itself.
This is a kind of [[#Invent-own/reuse-existing packaging format]] packaging format, but it moves the center of gravity to a distro-specific installer from the packaged activity itself.
== combined Source+Binary package ==
=== combined Source+Binary package ===
This is a new package format fitted to the special needs of Sugar. Unlike Java (where - at least in theory - compiled bytecode
This is a new package format fitted to the special needs of Sugar. Unlike Java (where - at least in theory - compiled bytecode
cause more trouble long-term. If designed properly, it might even get used as a standard interchange format for other systems.
cause more trouble long-term. If designed properly, it might even get used as a standard interchange format for other systems.
=== Package contents ===
==== Package contents ====
* metadata (title, author, etc.)
* metadata (title, author, etc.)
* software dependency information
* software dependency information
* Rainbow security information
* Rainbow security information
=== Software dependencies ===
==== Software dependencies ====
Dependencies are a rather hard problem. We need to ensure that the right package (naming) in exactly the right version
Dependencies are a rather hard problem. We need to ensure that the right package (naming) in exactly the right version
(forward and backwards compatibility), linked against the right libraries (recursive dependencies) with a matching
(forward and backwards compatibility), linked against the right libraries (recursive dependencies) with a matching
required by a lot of Activities). The security implications of this need to be carefully considered, though.
required by a lot of Activities). The security implications of this need to be carefully considered, though.
=== Hardware dependencies ===
==== Hardware dependencies ====
Some Activities require special hardware (e.g. sensor module) or are known not to work on certain (sets of) architectures, e.g.
Some Activities require special hardware (e.g. sensor module) or are known not to work on certain (sets of) architectures, e.g.
(but of course with the option to install anyway so it could be adapted to the available hardware).
(but of course with the option to install anyway so it could be adapted to the available hardware).
=== Prebuilding ===
==== Prebuilding ====
As building from source might take a significant amount of time, it might be useful (bundle size/build time tradeoff) to
As building from source might take a significant amount of time, it might be useful (bundle size/build time tradeoff) to
all to reduce download size.
all to reduce download size.
== Sugar Platform ==
=== Sugar Platform ===
Maybe most reasonable decision(at least for 0.84) is declaring "Sugar Platform" like a set of all non-sugar components that activity developers could rely on.
Maybe most reasonable decision(at least for 0.84) is declaring "Sugar Platform" like a set of all non-sugar components that activity developers could rely on.
[[Category:Activity]]
[[Category:Activity]]