[Buildbot-devel] WithProperties?

[Amber Yust]

If you're willing to update to the latest GitHub master release, I recently
added support to WithProperties for evaluation of functions to determine
substitutions, so you can do something like this:

foo=WithProperties('%(bar)s', bar=lambda props: someval)

This would let you slice and dice the branch property if you desired. I
don't think the source step supports WithProperties in the defaultBranch (I
think that argument is evaluated at config-time, not run-time), so trying to
use WithProperties there probably wouldn't work.

~Amber

On Tue, Dec 14, 2010 at 12:59 PM, Christian Unger <christian.unger at me.com>wrote:

>
>
> I seem to understand what is going on here,
> and thanks much for opening my eyes :-)
>
> ok, I can add a named property and am able to access it through
> interpolation.
> and yes I can make this a convention here and make everyone enter
> projectName as a property when they are building.
> still I'd either like to extract projectName from the branch property or
> have the default branch use projectName interpolation
> like so:
>
>    source.SVN(mode='clobber', username=private.svnlogin,
> password=private.svnpass,
>                 baseURL=checkout.projectsBaseURL,
> defaultBranch=WithProperties("%(projectName)s/trunk"),
>                 locks=[tag_lock.access('exclusive')]),
>
>     ShellCommand(command=['time', './deploy.command', '--stage', 'dev'],
>                     description="preparing staging tags",
>                     descriptionDone="creating devtag",
>                     haltOnFailure=True,
> locks=[tag_lock.access('exclusive')]),
>
>     source.SVN(mode='clobber', username=private.svnlogin,
> password=private.svnpass,
>                 baseURL=checkout.projectsBaseURL,
> defaultBranch=WithProperties("%(projectName)s/tags/current"),
>                 locks=[tag_lock.access('exclusive')]),
>
>
>
> anyone?
>
>
>
>
>
> On 14.12.2010, at 17:33, Amber Yust wrote:
>
> If your property is named projectName, then...
>
> where you'd normally have, say, foo='blah/tags/current'
>
> Instead, use the following:
>
> foo=WithProperties('%(projectName)s/tags/current')
>
> (Note - this isn't a regex, it's Python string interpolation with a few
> extra syntaxes.)
>
> ~Amber
>
> On Tue, Dec 14, 2010 at 7:59 AM, Christian Unger <christian.unger at me.com>wrote:
>
>>
>> I'm sorry, but I am really having a hard time wrapping my brain around
>> properties in buildbot.
>>
>> so I have a BuildFactory, where I do an svn source checkout of
>> 'projectName/trunk',
>> where projectName is dynamic and can be set on the waterfall page as the
>> branch property.
>> the next step tags this as 'projectName/tags/current' by using a shell
>> script which is able to determine the projectName without buildbot
>> interaction.
>>
>> now the third step should be able to checkout  'projectName/tags/current'
>> and retrieve projectName from the build properties.
>> my question is how to inject a regex into my build steps which extracts
>> this string from the branch property.
>>
>> any help very much appreciated
>>
>> thanks in advance
>>
>>   __
>> cu
>> christian unger
>>
>>
>>
>>
>>
>>
>>
>>
>>
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>>
>
>   __
> cu
> christian unger
>
>
>
>
>
>
>
>
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