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Wed, 08 August 2018 05:27

Eclipse User

Hi All,

We have a bunch of DSLs written with Xtext 2.7 which we're going to migrate to the newest Xtext 2.14. In our builds we use Tycho.

What is your recommendation - should we just update version of dependencies in our poms and target definition platform files. Or would it be more recommended to generate new projects from scratch and move our DSL projects to the new structure?

Dominik

Re: Xtext upgrade [message #1793435 is a reply to message #1793434]

Wed, 08 August 2018 05:52

Eclipse User

Its just a matter of personal preference and if you want to port the workflow too.
In all cases you have to copy and adapt anywhere. So there is no recommendation

Re: Xtext upgrade [message #1793436 is a reply to message #1793435]

Wed, 08 August 2018 06:26

Eclipse User

Hi

I continue to use old style Xtext and with only modest tweaks I can use the latest Xtext release, however I am aware that I am losing out on at least the new formatter. However the significant formatter bugs seem to persist anyway in Xtext/MWE2 editors. Not tracking the latest code has risks that functionality that you rely on eventually breaks. If you want your code to continue to run on an Xtext 2.7 platform then an upgrade is not a good idea. If you are refreshing your code as part of an enhancement program then an upgrade is probably sensible. If you are just feeling guilty about lagging behind, perhaps you can lag a bit further. When upgrading, I would certainly merge your old code into 'new' projects so that you pick up all the latest default facilities.

Regards

Ed Willink

Re: Xtext upgrade [message #1793446 is a reply to message #1793436]

Wed, 08 August 2018 09:18

Eclipse User

The following blog post may guide you through the migration process: https://typefox.io/xtexts-new-generator-migration

Re: Xtext upgrade [message #1793447 is a reply to message #1793446]

Wed, 08 August 2018 09:30

Eclipse User

Thank you all for comments. I will try to generate fresh projects with wizards and copy existing files over.

Re: Xtext upgrade [message #1797616 is a reply to message #1793447]

Fri, 02 November 2018 14:16

Eclipse User

I assume you are trying to upgrade to latest Xtext/Xtend release by keeping your current code / project intact. If yes, read ahead:

You will required to do changes in following files (in case below we are upgrading to 2.15.0 from 2.13.0):

1. parent/pom.xml

  -               <tycho-version>1.0.0</tycho-version>
  -               <xtextVersion>2.13.0</xtextVersion>
  +               <tycho-version>1.2.0</tycho-version>
  +               <xtextVersion>2.15.0</xtextVersion>

2. MANIFEST.MF

e.g. parent/mydsl/META-INF/MANIFEST.MF

- org.eclipse.xtext.xbase.lib;bundle-version="2.13.0",
- org.antlr.runtime,
+ org.eclipse.xtext.xbase.lib;bundle-version="2.14.0",
+ org.antlr.runtime;bundle-version="[3.2.0,3.2.1)",
  org.eclipse.xtext.util,
  org.eclipse.emf.common,
- org.eclipse.xtend.lib;bundle-version="2.13.0",
+ org.eclipse.xtend.lib;bundle-version="2.14.0",

3. parent/mydsl.target/target.target

update repository:

-<repository location="http://download.eclipse.org/releases/oxygen/201709271000"/>
+<repository location="http://download.eclipse.org/releases/2018-09/201809191002"/>

update xtext release version:

-<repository location="http://download.eclipse.org/modeling/tmf/xtext/updates/releases/2.13.0/"/>
+<repository location="http://download.eclipse.org/modeling/tmf/xtext/updates/releases/2.15.0/"/>

4. These files will be automatically updated once you build `mvn clean install`

parent/feature/feature.xml
parent/ui/plugin.xml_gen

Hope this helps!

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