[Owncloud] App Requirements

[Frank Karlitschek]

On 18.04.2012, at 23:30, Tom Needham <tom at owncloud.com> wrote:

>> Hey Tom,
>> 
>> actually I wrote a proposal about dependencies of apps (mainly apps depending on other apps) to this mailing list on 8th of april, hoping to start a constructive discussion about it...
> 
> Hi Florian!,
> 
> I remember this now! I think it is also important (and a common use case) that apps need to require specific functions / classes that might need to be installed by a systems administrator. But you're idea of requiring other ownCloud apps is also valid! We could include <app> elements in the <requirements> section like you have demonstrated. 
> 
> We can also put in a requirement for the php version, and owncloud version.

Thats a good idea. Especially the owncloud version is important.


> 
> Cheers,
> Tom
> 
> Tom Needham
> tom at owncloud.com
> 
> 
> 
> On 18 Apr 2012, at 22:25, Florian Hülsmann wrote:
> 
>> Hey Tom,
>> 
>> actually I wrote a proposal about dependencies of apps (mainly apps depending on other apps) to this mailing list on 8th of april, hoping to start a constructive discussion about it...
>> 
>> I thought about something like this:
>> 
>> <info>
>>  <!-- app info -->
>>  <requires id="required_app">
>>    <!-- to define specific versions of required_app, optional -->
>>    <min>0.2</min> <!-- optional -->
>>    <max>0.5</max> <!-- optional -->
>>    <version>0.15</version> <!-- a specific version; optional -->
>>    <version>0.16</version> <!-- optional -->
>>  </requires>
>>  <requires id="another_app" />
>> 
>>  <conflicts id="evil_app">
>>    <max>0.3</max> <!-- same version properties as above -->
>>  </conflicts>
>>  <!-- ... -->
>> </info>
>> 
>> But we could make this even possible for PHP libraries etc.
>> 
>> Cheers
>> 
>> Florian
>> 
>> Am 18.04.2012 23:17, schrieb Tom Needham:
>>> Hi All,
>>> 
>>> Had an idea of how to implement requirements when installing apps. For
>>> example, when the gallery is installed, it need to check if gd is
>>> installed, rather than just giving an error. So I though about adding a
>>> <requirements> section to the apps info.xml. In there we can list
>>> <functions> <classes> and <extensions> that we can check exists when
>>> enabling the app.
>>> 
>>> We can also do a check when we do the overall owncloud install to check
>>> that the default enabled apps have all their requirements met.
>>> 
>>> What do you think, is this flexible enough for apps?
>>> 
>>> Thanks,
>>> Tom
>>> 
>>> Tom Needham
>>> tom at owncloud.com <mailto:tom at owncloud.com>
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Owncloud mailing list
>>> Owncloud at kde.org
>>> https://mail.kde.org/mailman/listinfo/owncloud
>> 
>> -- 
>> Florian Hülsmann
>> <fh at cbix.de>
>> http://cbix.de
> 
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