> ----- Original Message -----
> From: "Chekan, Vadim" <[EMAIL PROTECTED]>
> To: <nant-users@lists.sourceforge.net>
> Sent: Thursday, March 09, 2006 3:18 AM
> Subject: [NAnt-users] <available> replacement
>
> Hello there!
>
> I'm porting my scripts from ant and have a question how to port
> <available> task. What it does is execute "svn up" if sources already
> exist and execute "svn co" if not.
>
> What I have:
>
> <available file="${sln.dir}" type="dir" property="haveSources"/>
> ...
> <target if="haveSources" name="scc_up">
> <exec executable="utils\svn.exe" failonerror="true"
> dir="${sln.dir}">
> <arg line="up" />
> </exec>
> </target>
> <target unless="${bool::parse('${haveSources}')}" name="scc_co">
> <mkdir dir="${sources.folder}"/>
> <exec executable="utils\svn.exe" failonerror="true"
> dir="${sources.folder}">
> <arg line="co ${src.url} ." />
> </exec>
> </target>
>
> What I'm trying to do is:
>
> <property name="haveSources" if="${directory::exists('${sln.dir}')}"
> value="true"/>
This should have been:
<property name="haveSources" value="${directory::exists(sln.dir)}" />
> But then it fails saying:
> Expression: ${bool::parse('${haveSources}')}
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> String was not recognized as a valid Boolean.
>
> I can implement it by inlining if="${directory::exists('${sln.dir}')}"
> in all tasks, but it becomes less easy to read. I'd prefer to preserve
> "haveSources" variable.
>
> Any advises?
You could:
1. use the directory::exists function in the if/unless attributes of
<target>:
<target name="scc_up" if="${directory::exists(sln.dir)}">
<exec executable="utils\svn.exe" failonerror="true" dir="${sln.dir}">
<arg line="up" />
</exec>
</target>
<target name="scc_co" unless="${directory::exists(sln.dir)}">
<mkdir dir="${sources.folder}"/>
<exec executable="utils\svn.exe" failonerror="true"
dir="${sources.folder}">
<arg line="co ${src.url} ." />
</exec>
</target>
2. use a single target and perform the test in there:
<if test="${directory::exists(sln.dir)}">
<exec executable="utils\svn.exe" failonerror="true" dir="${sln.dir}">
<arg line="up" />
</exec>
</if>
<if test="${not(directory::exists(sln.dir))}">
<mkdir dir="${sources.folder}"/>
<exec executable="utils\svn.exe" failonerror="true"
dir="${sources.folder}">
<arg line="co ${src.url} ." />
</exec>
</if>
If you also use a recent NAntContrib nightly build, then you can do this
(which is much cleaner than the two <if> tasks):
<choose>
<when test="test="${directory::exists(sln.dir)}">
<exec executable="utils\svn.exe" failonerror="true"
dir="${sln.dir}">
<arg line="up" />
</exec>
</when>
<otherwise>
<mkdir dir="${sources.folder}"/>
<exec executable="utils\svn.exe" failonerror="true"
dir="${sources.folder}">
<arg line="co ${src.url} ." />
</exec>
</otherwise>
</choose>
Hope this helps,
Gert
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