Re: [cdt-dev] Problem with adding entries to language settings provider

[Marc-Andre Laperle <malaperle@xxxxxxxxx>]

Hi Erwin!

I did go through some pains trying to add entries programatically somewhat recently.
You can see the hurdles in CompilationDatabaseParser class.
I would double check that you have a writable ICConfigurationDescription. If not, I think you have to get a writable description and set it within a WorkspaceJob. Also make sure you get the correct language settings provider from this writable description. See CompilationDatabaseParser.scheduleOnWritableCfgDescription for example.
I also remember the description was not seen as dirty just by changing language settings. I did a hack by setting a “session property” on the project description. See CompilationDatabaseParser.touchProjectDes.

I don’t really master any of these parts but maybe one of those suggestions will help you.

Marc-André


> On Jul 13, 2020, at 11:21 AM, Waterlander, Erwin <erwin.waterlander@xxxxxxxxx> wrote:
> 
> Hi,
> 
> When I add an editable language settings provider via the plugin.xml to a CDT plugin per configuration, the entries added in the plugin.xml are not there.
> And when I add entries programmatically to the provider they are also not there.
> What am I doing wrong?
> 
> I took the example from the CDT plugin developers guide and added this to the plugin.xml:
> 
>   <extension
>         point="org.eclipse.cdt.core.LanguageSettingsProvider">
>      <provider
>            class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider"
>            id="org.eclipse.cdt.example.toolchain.provider1"
>            name="Example Provider"
>            prefer-non-shared="true">
>         <entry
>               kind="includePath"
>               name="org.eclipse.cdt.example.toolchain.entry2"
>               value="/project/include">
>         </entry>
>      </provider>
>   </extension>
>   <extension
>         point="org.eclipse.cdt.ui.LanguageSettingsProviderAssociation">
>      <id-association
>            id="org.eclipse.cdt.example.toolchain.provider1"
>            ui-edit-entries="true">
>      </id-association>
>   </extension>
> 
> 
>         <configuration
>               id="org.eclipse.cdt.example.toolchain.configuration1"
>               languageSettingsProviders="org.eclipse.cdt.example.toolchain.provider1;org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider;org.eclipse.cdt.ui.UserLanguageSettingsProvider"
>               name="Test Release">
>               .....
>         </configuration>
> 
> 
> Adding entries programmatically:
> 
> 
>        LanguageSettingsGenericProvider provider = null;
> 
>        List<ILanguageSettingsProvider> providers = ((ILanguageSettingsProvidersKeeper) cfgDescription)
>                .getLanguageSettingProviders();
>        for (ILanguageSettingsProvider p : providers) {
>            if (p.getId().contains("example")) {
>                provider = (LanguageSettingsGenericProvider) p;
>                break;
>            }
>        }
> 
>        System.out.println("provider id: " + provider.getId());        
>        // Output: provider id: org.eclipse.cdt.example.toolchain.provider1
>        // No number suffix (?)
> 
>        // Get existing entries (from plugin.xml).
>        List<ICLanguageSettingEntry> entries = provider.getSettingEntries(cfgDescription, project,
>                "org.eclipse.cdt.core.cSource");
> 
>       // entries appears to be null. I would expect to see the include path from plugin.xml.
> 
>        if (entries == null)
>            entries = new ArrayList<ICLanguageSettingEntry>();
> 
>        // Add extra include path
>        CIncludePathEntry entry;
>        entry = CDataUtil.createCIncludePathEntry("/project/include/extra", ICSettingEntry.NONE);
>        entries.add(entry);
> 
>        provider.setSettingEntries(cfgDescription, project, "org.eclipse.cdt.core.cSource", entries);
> 
>        CoreModel.getDefault().setProjectDescription(project, projectDescription);
> 
> 
> regards,
> 
> -- 
> Erwin
> 
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