Sugar Labs

Changes

Platform Team/Guide/Sweets Packaging (view source)

Revision as of 01:30, 23 September 2012

3,272 bytes removed ,  01:30, 23 September 2012
m
no edit summary
Line 32: Line 32:  
These files need to be placed in the root sources directory with names {{Code|sweets.recipe}} or {{Code|activity/activity.info}} for Sugar activities.
 
These files need to be placed in the root sources directory with names {{Code|sweets.recipe}} or {{Code|activity/activity.info}} for Sugar activities.
   −
=== Writing recipe files ===
+
=== Writing recipes ===
    
In sources directory, create a recipe file, e.g., using {{Code|sweets init}} command. Recipe file should contain at least one [[Platform_Team/Recipe_Specification#Use case sections|use case]] section. There are several types of use case sections:
 
In sources directory, create a recipe file, e.g., using {{Code|sweets init}} command. Recipe file should contain at least one [[Platform_Team/Recipe_Specification#Use case sections|use case]] section. There are several types of use case sections:
Line 40: Line 40:  
* ''Library'' for libraries.
 
* ''Library'' for libraries.
   −
Make sure that all required options were set. The ''implement'' option has a special meaning, it is an [[Platform_Team/Sweets_Glossary#Implemented_interfaces|identifier]] of the sweet.
+
Make sure that all required options were set. The ''implement'' option has a special meaning, it is an [[Platform_Team/Sweets/Glossary#Implemented_interfaces|identifier]] of the sweet.
    
By default, the entirely sources directory will be packaged into sources tarball. In case if sources list needs to be restricted, add [[Platform_Team/Recipe_Specification#.5BBuild.5D|Source]] section with appropriate ''include'' and/or ''exclude'' options.
 
By default, the entirely sources directory will be packaged into sources tarball. In case if sources list needs to be restricted, add [[Platform_Team/Recipe_Specification#.5BBuild.5D|Source]] section with appropriate ''include'' and/or ''exclude'' options.
Line 47: Line 47:     
If built files are platform dependent, add [[Platform_Team/Recipe_Specification#Archive_sections|Archive]] section with ''arch=any'' option.
 
If built files are platform dependent, add [[Platform_Team/Recipe_Specification#Archive_sections|Archive]] section with ''arch=any'' option.
 +
 +
=== Interfaces ===
 +
 +
The ''implement'', ''associate'' and ''requires'' (optionally) options contain [[Platform_Team/Sweets/Glossary#Short_form_for_sweet_interfaces|short interfaces]]. These values have two meanings:
 +
 +
* suffixes for final ''interface''s, e.g., {{Code|http://sweets.sugarlabs.org/''<value>''}},
 +
* the name of project/package on [[Platform_Team/Open_Build_Service|OBS]] that will be used to host released sweet.
 +
 +
In the 2nd case, the last slash separated part is a package, and the rest is a project, e.g., for ''sdk/sugar'', ''sdk'' is a project and ''sugar'' is a package in the ''sdk'' project.
 +
It is possible to have interface values without slashes, in that case, project and package names are the same.
 +
 +
In the [[Platform_Team/Open_Build_Service|OBS]], there is a special project named ''base''. This project contains sweets that all time will be represented only by native packages. In other words, if you need to make sure that your sweet needs to depend only on native packages, use dependencies from the ''base'' project.
 +
 +
The ''base'' project is also useful for [[Platform_Team/Sweets/Glossary#Associated_interfaces|associated]] interfaces set in ''associate'' recipe option. For example, if your sweet needs ''pygame=2'' dependency that is not yet widespread, create ''~user/pygame'' temporary sweet with ''2'' version only, and use ''~user/pygame'' as a dependency in your sweet. If ''base/pygame'' will be added as associated interface to the ''~user/pygame'', users that have ''>=2'' version in native packages will reuse them instead of ''~user/pygame'''s one.
 +
 +
See OBS [https://packages.sugarlabs.org/project/list_public projects] for all existed sweets.
 +
 +
=== Dependencies ===
 +
 +
Dependencies might be used in the ''requires'' and ''suggests'' options in recipes files to declare that the current sweet depends on another sweet/s.
 +
 +
The format of a dependency string is:
 +
 +
<interface> [(=|>=|<) <version>]
 +
 +
The ''interface'' value supports all interface [[#Interfaces|forms]]. The limited set of version conditions depends on Zero Install [http://0install.net/interface-spec.html specification] when the {{Code|<nowiki>=</nowiki>}} condition is a high level one and will be described in {{Code|<nowiki>>=</nowiki>}} and {{Code|<}} terms.
 +
 +
Dependencies may be optional. In that case, they need to be wrapped in square brackets. Optional dependencies will be used ''only'' if there is an [[Platform_Team/Sweets/Glossary#implementation|implementation]] to choose, otherwise they will be discarded without errors.
 +
 +
=== Stability status ===
 +
 +
Sweets should have stability status:
 +
 +
* ''stable'', final stable release,
 +
* ''testing'', let people interested in testing try latest changes that are not yet stable,
 +
* ''developer'', just a more extreme version of ''testing'',
 +
 +
This is a useful Zero Install feature that let developers share not yet stable version among the community. Since by default, only stable versions are being used, people, who are interested in helping developers in polishing not yet stable versions, need to explicitly choose not stable versions.
 +
 +
=== Glob patterns ===
 +
 +
The ''include'' and ''exclude'' options contain file patterns. A pattern could be of two types:
 +
 +
* doesn't contain ''/'' or ''**'' substrings, will be applied only to file names
 +
* contains ''/'' or ''**'' substring, will be applied to the full file path (relative to the root), thus could affect several directory levels
 +
 +
Only these pattern symbols are allowed:
 +
 +
* ''*'' matches everything, except directory separator
 +
* ''?'' matches any single character, except directory separator
 +
* ''**'' matches everything, including directory separator
    
=== Examples ===
 
=== Examples ===
   −
A list of recipe examples.
+
A list of recipe examples. Additionally, see {{Code|sugar*}} repositories in the [http://git.sugarlabs.org/sdk Gitorious sdk] repository, all of them are sweets.
    
'''Python activity'''
 
'''Python activity'''
Line 128: Line 179:  
  install  = make DESTDIR=%(DESTDIR)s install
 
  install  = make DESTDIR=%(DESTDIR)s install
   −
== Development with Sweets ==
+
== Releasing ==
   −
Source bundles might be used on a client side not only indirectly, via {{Code|sweets}} command for example, but also explicitly. Sources might be bundled, emailed, etc. In this case, it is no different from {{Code|.xo}} files. To make sources useful within Sweets, the local directory with sources might be used in several ways:
+
In Sweets, releasing means uploading a sources tarball with a release (though, that [[#Stability_status|doesn't only mean]] stable versions) to the Sugar Labs [[Platform_Team/Open_Build_Service|instance]] of the [http://openbuildservice.org/ Open Build Service] (OBS). Before releasing, make sure that you have a Sugar Labs [[Service/Account#Sugar_Labs_Central_Login|account]]. A login with password will be required the first time or when your cookie is missing.
   −
* Applications might be launched from sources, {{Code|sweets ''<path-to-sources>''}};
+
Before releasing, make sure that your recipe conforms to the OBS [[Platform_Team/Open_Build_Service/Policy|Policy]]. While releasing, sweet sources will be uploaded to an OBS project/package according to the [[#Interfaces|implement]] recipe option. If a particular project or package don't exist, they will be created (upon user's confirmation for project creation).
−
* To reuse sources as dependencies for other sweets, source directory needs to be registered in Sweets, {{Code|sweets checkout ''<path-to-sources>''}}; applications might be checked out as well.
     −
Checking out will register a ''sweet'' in the local ''Sweets'' instance as a single ''implementation'' for the ''interfaces'' it ''implements''. This feature is especially useful for libraries, for example, if the sugar-toolkit sources, which implement the {{Code|sdk/sugar-toolkit}} ''interface'', were cloned to the {{Code|~/src/sugar-toolkit}} directory, then, while running a {{Code|sdk/sugar}} ''sweet'', it would become possible to reuse local sugar-toolkit sources as a regular ''implementation'' of the {{Code|sdk/sugar-toolkit}} dependency of {{Code|sdk/sugar}}.
+
To initiate releasing, enter from the sweet sources directory:
   −
== Feedback ==
+
sweets commit
   −
* [http://bugs.sugarlabs.org/newticket?component=sweets Submit] your bug report.
+
The {{Code|sweets}} command will ask for a commit message, i.e., release notes. The same notes might be passed to {{Code|commit}} command via the {{Code|--message}} command-line argument.
−
* Ask your question on IRC channels, [irc://irc.freenode.net/sugar #sugar] (not logged) or [irc://irc.freenode.net/sugar-newbies #sugar-newbies] (logged).
     −
<!--
+
If the releasing sweet is binary based, only the most recent stable version will be built on the OBS side, other versions will be built on the client side.
   −
The only thing that is required from sources is having a [[Platform Team/Recipe Specification|sweets.recipe]] spec file for non-activity projects or an {{Code|activity/activity.info}} file (that conforms to the same spec) for activities. All sweets for Glucose components are located in the http://git.sugarlabs.org/sdk project.
+
== Development with Sweets ==
   −
Once checked out, these sources might be launched using {{Code|<nowiki>http://</nowiki>sweets.sugarlabs.org/''sweet-value-from-sweets.recipe''}} or just mentioning a sweet value:
+
Source bundles might be used on the client side not only indirectly, via {{Code|sweets}} command for example, but also explicitly. Sources might be bundled, emailed, etc. In this case, it is just like {{Code|.xo}} files. To make sources useful within Sweets, the local directory with sources might be employed in several ways:
   −
sweets ''sweet''
+
* Applications might be launched from sources, {{Code|sweets ''<path-to-sources>''}};
 +
* To reuse sources as dependencies for other sweets, the source directory needs to be registered in Sweets, {{Code|sweets checkout ''<path-to-sources>''}}; applications might be checked out as well.
   −
For glucose projects, you can find ready-to-use and always-rebased-to-upstream projects in the [http://git.sugarlabs.org/sdk SDK] http://git.sugarlabs.org project. For now, there are two branches: {{Code|master}} for recent trunk, and {{Code|master-0.88}} for 0.88 code based on Dextrose-2 patches.
+
Checking out will register a ''sweet'' in the local ''Sweets'' instance as a single ''implementation'' for the ''interfaces'' it ''implements''. This feature is especially useful for libraries, for example, if the sugar-toolkit sources, which implement the {{Code|sdk/sugar-toolkit}} ''interface'', were cloned to the {{Code|~/src/sugar-toolkit}} directory, then, while running a {{Code|sdk/sugar}} ''sweet'', it would become possible to reuse local sugar-toolkit sources as a regular ''implementation'' of the {{Code|sdk/sugar-toolkit}} dependency of {{Code|sdk/sugar}}.
   −
Checked-out projects will be built according to the {{Code|[Build]}} section commands in the {{Code|sweets.recipe}} files. In general, for autotools-based projects, there is no further need for the {{Code|sweets}} command; just run {{Code|make install}} to build current sources and install  them to the directory that was specified by {{Code|sweets}} in the configure stage. For glucose projects, there is no need even in calling the {{Code|make}} command (python code will be reused from its original location, see {{Code|binding}} options in [[Platform Team/Recipe Specification|sweets.recipe]] files), just change the code and restart sugar.
+
=== Sugar sweets ===
    +
There are [[Platform_Team/Guide/Sweets_Usage#Sugar_via_Sweets|sdk/sugar]] sweets that might be used as an example how to support sweets. Sweets Sugar sources are always rebased [http://git.sugarlabs.org/sdk forks] of upstream projects with added {{Code|sweets.recipe}} files and lightweight patches that make the original code useful via Sweets.
   −
== Writing recipe files ==
+
Checkout sources from:
   −
See also [[Platform_Team/Recipe_Specification|recipe specification]].
+
* http://git.sugarlabs.org/sdk/sugar-base
 +
* http://git.sugarlabs.org/sdk/sugar-toolkit
 +
* http://git.sugarlabs.org/sdk/sugar-artwork
 +
* http://git.sugarlabs.org/sdk/sugar
   −
=== Package names ===
+
and see its {{Code|sweets.recipe}} files.
   −
Within recipe files, Zero packages might be identified by several methods:
+
== Developing activities ==
   −
* current package (instead of a direct slug value, to make the recipe file more robust, move the ''slug'' option to the [DEFAULT] section and use {{Code|%(slug)s}} interpolation),
+
How Sweets might be useful while developing activities.
−
<current-slug>[/<nowiki><sub-package></nowiki>]
     −
* other packages from Bazaar that are accessible in the current project,
+
=== Manage sources ===
−
<other-package-slug>[/<nowiki><sub-package></nowiki>]
     −
* direct 0install link.
+
The traditional development related routine for activity sources is to run the {{Code|setup.py}} script located in the root activity directory. With Sweets, these routines might be accomplished with the {{Code|sweets}} command. Here is some background information:
−
<0install-feed-url>
     −
At the end, all links will be transfered to 0install feed urls. The final 0install url will be in the following format:
+
* A downside of using Sweets is that running {{Code|setup.py}} requires being in the Sugar session (in order to have all the libraries that {{Code|setup.py}} injects);
 +
* Sweets is designed to support multiple software versions at the same time. So to avoid having to login to different Sugar sessions for creating source tarballs, for example, it makes more sense to have a standalone utility;
 +
* The {{Code|sweets}} command already contains development related functionality; it is useful to keep all development related functions in one utility.
   −
<nowiki>http</nowiki>://sweets.sugarlabs.org/<Bazaar-project>/<slug>
+
Sweets support the following {{Code|setup.py}}'s commands:
   −
=== Versioning ===
+
* {{Code|build}}, build generated files, e.g., {{Code|locale/}} directory;
 +
* {{Code|dist_xo}}, create a .xo with activity sources;
 +
* {{Code|dist_source}}, create activity sources tarball;
 +
* {{Code|genpot}}, generate the gettext pot file.
   −
The versioning scheme for Zero packages can be arbitrary, since the ''version'' recipe option supports [http://0install.net/interface-spec.html#id4016582 0install version format]. But in some cases, e.g., libraries, stricter versioning could be useful. In that case, the ''age'' recipe option should be used.
+
And doesn't support the following:
   −
The recipe option ''age'' is intended to support, mostly, API breakages of library packages. But not ABI, because tracking an ABI is not trivial within the Sugar ecosystem (due to the enormous potential code base of varying quality) and of little utility, and since packages may at any time be rebuilt from sources and multiple library versions may be installed (thanks to 0install).
+
* {{Code|dev}} - seems to be a needlessly exaggerated function that creates a symbolic link in the {{Code|~/Activities}} directory to activity sources. The same might be done using the {{Code|ln -s}} command to avoid having derived functionality, or better, place sources directly in the {{Code|~/Activities}} directory;
 +
* {{Code|fix_manifest}} - function creates {{Code|MANIFEST}} file. Not having this file is not a failure, and Sweets is designed to have include/exclude rules in recipe files instead;
 +
* {{Code|install}} - function installs the activity to the root system.  Sweets avoid, by design, any global changes during its regular behaviour.
   −
Using the ''age'' option is simple, on every API breakage for the library package, increment the ''age'' value. The final package version will be:
+
As regular {{Code|sweets}}'s commands, these commands need to be executed from the activity directory (or in any of its sub-directories, not just in the root), or the path to activity sources might be specified after the command name, e.g.:
−
<age-option>.<version-option>
     −
=== Glob patterns ===
+
sweets build [PATH]
   −
A pattern could be of two types:
+
=== Launch activity ===
   −
* doesn't contain ''/'' or ''**'' substrings, will be applied only to file names
+
Before starting Sugar Shell, place your activity's sources directory under the {{Code|~/Activities/}} directory, or place there a symbolic link to the activity sources. After running Sugar Shell, the new activity will appear in the Home view (if it's absent in the Favorites view, switch to the List view).
−
* contains ''/'' or ''**'' substring, will be applied to the full file path (relative to the root), thus could affect several directory levels
     −
Only these pattern symbols are allowed:
+
== Good practices ==
−
 
  −
* ''*'' matches everything, except directory separator
  −
* ''?'' matches any single character, except directory separator
  −
* ''**'' matches everything, including directory separator
  −
 
  −
== Pitfalls ==
      
=== Devel packages ===
 
=== Devel packages ===
   −
It is common practice in binary-based GNU/Linux distributions to use satellite devel packages to collect various build-time files like C headers or pkg-config files. In the 0install environment, this doesn't work, because every package is stored in a separate directory hierarchy, e.g., *.so symlinks, from devel package, will point to nothing, since all *.so.* files from the library package live in a separate directory.
+
It is common practice in binary-based GNU/Linux distributions to use satellite devel packages to collect various build-time files like C headers or pkg-config files. In the Zero Install environment, this doesn't work, because every package is stored in a separate directory hierarchy, e.g., *.so symlinks, from devel package, will point to nothing, since all *.so.* files from the library package live in a separate directory.
   −
Keep all build-time files in the runtime package.
+
Keep all build-time files in the sweet with runtime files.
    +
=== Transparent behaviour ===
    +
Library sweets that are associated with native packages ({{Code|base/*}} sweets), should use regular environment variables for binding, such as {{Code|LD_LIBRARY_PATH}}. The idea is that it should be possible to replace them with native packages transparently and avoid changes in sweets that use these libraries.
    +
== Feedback ==
   −
 
+
{{:Platform_Team/Sweets/Feedback}}
−
 
  −
== Introduction ==
  −
 
  −
The purpose of this Guide is to describe how to deploy your code via [[Activity_Team/Services|Sugar Services]] and let other people [[Documentation_Team/Services/Activity_Developers_Guide|use]] it in simple and convenient way.
  −
 
  −
If you are looking for a method to install some software from native packages, see [[Documentation_Team/Services/Wrap native packages HOWTO| native packages HOWTO]].
  −
 
  −
If the service is not just a [[Documentation_Team/Services/Native_packages_usage|wrapper]] for an upstream project, please consider the possibility of creating a service page using [[Activity Team/Services/Template|template]].
  −
 
  −
== Detailed description ==
  −
 
  −
The resulting service development process will consist of regular 0install files that are placed in a subdirectory on http://services.sugarlabs.org/ with a name that is the identity for the service in the rest of the 0sugar infrastructure. The Service's subdirectory will contain:
  −
 
  −
* Several .xml files that are regular 0install feeds. service.xml is the main feed for the service, other feed files are optional and represent sub services, e.g., [http://download.sugarlabs.org/services/toolkit/].
  −
 
  −
* A bunch of tarballs with sources and binaries. Feed files contain links to these files.
  −
 
  −
See the 0install [http://0install.net/interface-spec.html documentation] to learn more about feeds.
  −
 
  −
Services could be identified using two methods:
  −
 
  −
* by name in the 0sugar environment
  −
<service>
  −
<service>/<subservice>
  −
 
  −
* as regular 0install identifiers in the 0install environment
  −
http://services.sugarlabs.org/<service>
  −
http://services.sugarlabs.org/<service>/<subservice>.xml
  −
 
  −
To start the Sugar Services developing process:
  −
* Install the [[Documentation_Team/Services/0sugar|0sugar]] tool.
  −
* Read ''service.info'' file.
  −
[[Documentation_Team/Services/Service.info_Specification|specification]]
  −
and follow the rest of this document instruction about development details.
  −
 
  −
== Stability status ==
  −
 
  −
One of the core differences from the Sucrose development process is having not stable "releases" (here, release is a result of ``0sugar push`` command). So, services need stability status. Internally, each service release will have one of 0install's stability [http://0install.net/interface-spec.html#id4091477 statuses]:
  −
 
  −
* ''stable'', final stable release,
  −
* ''testing'', let people interested in testing try latest changes that are not yet stable,
  −
* ''developer'', just a more extreme version of ''testing'',
  −
* ''buggy'', already-released versions (of any status) could be [[#Bugfix_releases|marked]] as buggy after a while to force people to upgrade to a new bugfix version,
  −
* ''insecure'', an extreme version of ''buggy''.
  −
 
  −
''0sugar push'' w/o arguments will push local changes as is. If you want to push with a particular stability status, use ''0sugar push <status>''.
  −
 
  −
By default, all users will use only ''stable'' versions and won't upgrade to new versions, even if there are stable ones. To force people to upgrade from buggy versions, see the [[#Bugfix_releases|bugfix releases]] workflow.
  −
 
  −
== Development workflows ==
  −
 
  −
A Service developer can follow one of several step-by-step scenarios:
  −
 
  −
* [[Documentation Team/Services/Activity specific Services HOWTO|Activity specific Services HOWTO]] - if your activity uses its own binaries,
  −
* [[Documentation Team/Services/Binary-less Services HOWTO|Binary-less Services HOWTO]] - to make any architecture service, e.g., python based,
  −
* [[Documentation Team/Services/Binary Services HOWTO|Binary Services HOWTO]] - for services that contain binaries,
  −
* [[Documentation Team/Services/Upstream Services HOWTO|Upstream Services HOWTO]] - if your activity or service uses a project which is not part of Sugar Platform, follow this howto to create a wrapper around the upstream project, and just add its name to the ''requires'' section of .info file,
  −
* [[Documentation Team/Services/Wrap native packages HOWTO|Wrap native packages HOWTO]] - this is a special one, if some project is already well packaged in various GNU/Linux distributions, but is not a Sugar Platform component, just create a "fake" service.
  −
 
  −
== Release workflows ==
  −
 
  −
'''Having only stable releases'''
  −
 
  −
All releases of your services will have ''stable'' stability status.
  −
 
  −
* when your code is ready to release,
  −
* ''0sugar dist*'' to make bundles,
  −
* ''0sugar push stable'' to rsync bundles to the server,
  −
* if it was the wrong time to release and you want to re-release it, repeat the previous steps to rewrite the wrong release.
  −
 
  −
'''Bugfix releases'''
  −
 
  −
Services assume a simple versioning scheme, if you found bugs in the stable version,
  −
 
  −
* either ''0sugar push stable'' the release once more (users will not mess this new copy of release with previous ones),
  −
* or ''0sugar push stable'' the release with incremented ''version'' field.
  −
* If bugs are critical, mark the previous release as ''buggy'' or ''insecure'' to force users to upgrade their old releases. If you re-pushed release w/o incrementing ''version'' number, you should use revision number.
  −
 
  −
0sugar push {buggy|insecure} {version[-revision]}
  −
 
  −
''' Development releases '''
  −
 
  −
If you want to test your new version among interested people,
  −
 
  −
* do all the steps mentioned in the previous workflows,
  −
* but use either the ''testing'' or ''developer'' status for the ''push'' command.
  −
* Users interested in testing (with testing mode enabled) will get your new development version.
  −
* You don't have to change the ''version'' every time for micro releases, ''0sugar'' will implicitly change the revision of new pushes, and users will download the latest changes.
  −
 
  −
== Tips ==
  −
 
  −
* Via ''binding'' variables, a service's root directory will be accessible for service users, so for python services (for example), it is better to use a subdirectory for a service's import modules, like [http://git.sugarlabs.org/projects/toolkit/repos/mainline/trees/master Toolkit] does - there is a ''toolkit'' subdirectory in Toolkit's root.
  −
 
  −
* Be careful with machine architecture, especially in making binaries in VMs, e.g., the XO-1 arch is i586, but built-in XO VM, binaries could have i686 and thus, won't start (0install won't allow) on XO-1. Use --arch 0sugar's argument to set targeted architecture explicitly.
  −
 
  −
== Documentation ==
  −
 
  −
* [http://0install.net/injector-packagers.html Packaging guide] for 0install packages
  −
* [http://0install.net/interface-spec.html Feed file format specification]
  −
* [http://0install.net/0compile.html 0compile] [http://0install.net/0compile-dev.html guide]
  −
 
  −
== The workflow of regular Sugar doer will look like: ==
  −
 
  −
# Having a directory with Sugar project to develop.
  −
#* Directory should be placed to one of default paths.
  −
#* The only important element is a [[Platform Team/Sugar_Doers_Kit/Implementation#Recipes|recipe file]], i.e., an analog of {{Code|activity.info}} file for activities.
  −
# To make it useful, just run it.
  −
#* For activities, just click on activity icon in Sugar Shell.
  −
#* Otherwise, run application using its unique Web url.
  −
# Everything which is related to the process of project running, will be handled automatically.
  −
#* There is always a way to fallback to the particular running step.
  −
#* If project has dependencies, they will be installed or passed though the same running procedure (for under development dependencies).
  −
#* If project needs to be build, it will happen automatically (including installing buildtime dependencies).
  −
# Make Sugar project accessible for others.
  −
#* Only one command call or one click in Sugar Shell is needed.
  −
#* The only requirement, being registered in the system (particular implementations might be different, from [https://cas.sugarlabs.org/ Sugar Labs Central Login] to local school server).
  −
#* Anyone can run recent version of your project just be mentioning its Web url.
  −
# Sharing information about Sugar project.
  −
#* Information about newly released project might be automatically published on [[Activity Library]].
  −
 
  −
-->
 
Retrieved from "https://wiki.sugarlabs.org/go/Special:MobileDiff/69633...83134"