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Changing output directory for code generated files with Xtext [message #1276561]

Mon, 24 March 2014 18:32

George Best

Messages: 4
Registered: March 2014

Junior Member

I have a question regarding the output directory of code generated files:

Is is possible to define the output directory (default "./src-gen") of the Xtext code generator to be the same, where the concrete syntax/grammar file (...mydsl) - which is processed/saved via the editor - is located?

If yes, can this be done in the <MyDsl>OutputConfigurationProvider (head.outputDirectory) or is there another approach within Xtext?

At the moment I can only configure it to be relative to the eclipse project path and this is not what I need.

Thank you for your help!

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Re: Changing output directory for code generated files with Xtext [message #1276876 is a reply to message #1276561]

Tue, 25 March 2014 06:14

Uli Merkel

Messages: 248
Registered: June 2013

Senior Member

The generated DSL has a couple of preference pages.
On the "Compiler" page, you can set preferences for the "output folder"
including the path of the output directory.

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Re: Changing output directory for code generated files with Xtext [message #1277002 is a reply to message #1276876]

Tue, 25 March 2014 10:35

George Best

Messages: 4
Registered: March 2014

Junior Member

Thanks, but I intended that this should not be changed manually via eclipse preferences.

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Re: Changing output directory for code generated files with Xtext [message #1277061 is a reply to message #1277002]

Tue, 25 March 2014 12:38

Uli Merkel

Messages: 248
Registered: June 2013

Senior Member

resource.getURI() will give you infos about your input file.

I use it to make my output file similar to the input file with:

override void doGenerate(Resource resource, IFileSystemAccess fsa) {
var String scriptFileName = resource.getURI().lastSegment.toString();
var String outFileBase = scriptFileName.substring(0,scriptFileName.lastIndexOf("."));
fsa.generateFile( outFileBase + '.CIF',
makeTheCif(resource.contents.head as Model));

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