Re: [nant-dev] Current target again...

[Giuseppe G. <giu...@ag...>]

OK guys,

I'm going to implement it...
I'll let you know when is done.

j3d.

> Guis,
> Why don't you just implement it as a nant extension function and then
> see if there is enough interest to include it in either nantcontrib or
> nant core.
>
> Ian
> Giuseppe Greco wrote:
>
>>>----- Original Message -----
>>>From: "Giuseppe Greco" <giu...@ag...>
>>>To: <nan...@li...>
>>>Sent: Tuesday, March 02, 2004 7:49 AM
>>>Subject: [nant-dev] Current target again...
>>>
>>>
>>>
>>>
>>>>...
>>>>
>>>>My proposal is to introduce the concept of "generic target".
>>>>Let's go back to our gateway build file described above,
>>>>and rewrite the <recurse> target as a generic target:
>>>>
>>>><?xml version="1.0"?>
>>>>
>>>><project
>>>>  name="myProject"
>>>>  default="*">
>>>>
>>>>  <target
>>>>    name="*"
>>>>    description="Builds recursively all subprojects">
>>>>    <foreach
>>>>      item="Folder"
>>>>      property="foldername">
>>>>      <in>
>>>>        <items>
>>>>          <includes name="*"/>
>>>>          <excludes name="CVS"/>
>>>>        </items>
>>>>      </in>
>>>>      <do>
>>>>        <nant
>>>>          buildfile="${foldername}/default.build"
>>>>          target="${project.config} ${nant.current.target}"/>
>>>>      </do>
>>>>    </foreach>
>>>>  </target>
>>>>
>>>></project>
>>>>
>>>>Generic targets would specify "*" as their name, and NAnt
>>>>would always execute them.
>>>>
>>>>
>>>I don't immediately see a need for this.
>>>
>>>
>>
>>Let me show you a more detailed example. Here is a
>>fragment of the caller build file (the one in the
>>project's top directory):
>>
>>  ...
>>
>>  <target
>>    name="test"
>>    depends="init"
>>    description="Tests the current configuration">
>>    <property
>>      name="target"
>>      value="test"/>
>>    <nant buildfile="src/default.build"/>
>>  </target>
>>
>>  ...
>>
>>In this example, the "target" property is set to "test",
>>and then the <nant> task calls the gateway build file
>>described in my previous email. If NAnt would support
>>generic targets, we could reduce the target above like
>>this:
>>
>>  ...
>>
>>  <target
>>    name="test"
>>    depends="init"
>>    description="Tests the current configuration">
>>    <nant
>>      buildfile="src/default.build"
>>      target="${target::get-current-target()}"/>
>>  </target>
>>
>>  ...
>>
>>
>>and then let gateway build files forward targets
>>automatically:
>>
>><?xml version="1.0"?>
>>
>>
>>
>>>project
>>>
>>>
>>  name="myProject"
>>  default="*">
>>  <target
>>    name="*"
>>    description="Builds recursively all subprojects">
>>    <foreach
>>      item="Folder"
>>      property="foldername">
>>      <in>
>>        <items>
>>          <includes name="*"/>
>>          <excludes name="CVS"/>
>>        </items>
>>     </in>
>>      <do>
>>        <nant
>>         buildfile="${foldername}/default.build"
>>          target="${project.config} ${target::get-current-target()}"/>
>>      </do>
>>    </foreach>
>>  </target>
>></project>
>>
>>I think this would be a nice feature... but, of course,
>>that's just my opinion.
>>
>>j3d.
>>
>>
>>
>>>>At that point we also need a way
>>>>to get the target name specified by the calling build file,
>>>>and the answer is a built-in property named ${nant.current.target}.
>>>>
>>>>
>>>I'm not sure we should implement this, but if we should we'd definitely
>>>implement it as a function, not a built-in property.
>>>
>>>I guess we could add the following functions :
>>>
>>>target::get-target-name or target::get-current-target()
>>>
>>>    this function returns the name of the current target
>>>    this would throw an exception when there's no current target
>>>
>>>target::get-description(string targetname)
>>>
>>>    this functions returns the description of the specified target
>>>    this would throw an exception when the targetname is null or the
>>> given
>>>target does not exist
>>>
>>>But I'd like to get feedback of other committers first ...
>>>
>>>Gert
>>>
>>>
>>>
>>
>>
>>----------------------------------------
>>Giuseppe Greco
>>
>>::agamura::
>>
>>phone:  +41 (0)91 604 67 65
>>mobile: +41 (0)76 390 60 32
>>email:  giu...@ag...
>>web:    www.agamura.com
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>>
>>
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>>
>
>
> --
> Ian MacLean, Developer,
> ActiveState, a division of Sophos
> http://www.ActiveState.com
>
>
>
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----------------------------------------
Giuseppe Greco

::agamura::

phone:  +41 (0)91 604 67 65
mobile: +41 (0)76 390 60 32
email:  giu...@ag...
web:    www.agamura.com
----------------------------------------