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Subject: a construct to ensure existence of files in collection?
Date: Fri, 27 Oct 2006 09:29:15 -0700
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Thread-Topic: a construct to ensure existence of files in collection?
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From: "Vladimir Egorov" <vegorov@bea.com>
To: <user@ant.apache.org>
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Hi Ant Users,

I am using FileList to specify collection of files one by one. I need to
ensure that the specified files exist.

According to FileList doc, "FileLists are useful for specifying files
that may or may not exist". I checked some other path-like structures,
but did not find a straight-forward way to do this.

Is there something obvious I am missing? Any recommendations besides two
approaches listed below?

One approach is to enhance FileList with a 'failonerror' attribute, e.g.

<filelist dir=3D'some/dir' failonerror=3D'true'>
  <file name=3D'some.file'/>
</filelist>

(also for individual <file name=3D'some.file' failonerror=3D'true'/>).

Another approach is to provide an assert task for the same, e.g.

<assertFilesExist>
  <filelist dir=3D'some/dir'>
    <file name=3D'some.file'/>
  </filelist>
</assertFileExist>

(also for reference <assertFilesExist refid=3D'someref'/>).

Thank you,

--Vladimir
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