matthiasblaesing edited a comment on pull request #3209:
URL: https://github.com/apache/netbeans/pull/3209#issuecomment-933761139
With this applied the plugin can be as simple as:
```java
package eu.doppelhelix.dev.netbeans.indexability;
import java.net.URL;
import java.util.HashSet;
import java.util.Set;
import javax.swing.event.ChangeListener;
import org.openide.util.lookup.ServiceProvider;
import org.openide.util.lookup.ServiceProviders;
import
org.netbeans.modules.parsing.spi.indexing.IndexabilityQueryImplementation;
@ServiceProviders({
@ServiceProvider(service=org.netbeans.modules.parsing.spi.indexing.IndexabilityQueryImplementation.class),
@ServiceProvider(service=NodeModulesExcluder.class)
})
public class NodeModulesExcluder implements IndexabilityQueryImplementation {
private static final Set<String> BLOCKED_INDEXERS = new HashSet<>();
static {
BLOCKED_INDEXERS.add("js");
BLOCKED_INDEXERS.add("angular");
BLOCKED_INDEXERS.add("requirejs");
BLOCKED_INDEXERS.add("knockoutjs");
BLOCKED_INDEXERS.add("TLIndexer");
BLOCKED_INDEXERS.add("tests");
}
@Override
public boolean preventIndexing(String indexerId, String
indexerClassName, URL indexable, URL rootUrl) {
return indexable.getPath().contains("/node_modules/") &&
BLOCKED_INDEXERS.contains(indexerId);
}
@Override
public void addChangeListener(ChangeListener l) {
}
@Override
public void removeChangeListener(ChangeListener l) {
}
}
```
To give some context: A trivial angular project resulted in a scanning time
of 149.176 ms and results in this index directory:
```
matthias@enterprise:~/src/netbeans/nbbuild/testuserdir/var/cache/index/s1$
du -sh *
8,0K angular
1,2M css
2,2M errors
68K html
181M js
8,0K knockoutjs
2,4M lsp-indexer
18M org-netbeans-modules-jumpto-file-FileIndexer
52K requirejs
12K TaskListIndexer
8,0K tests
2,2M timestamps.properties
8,0K TLIndexer
matthias@enterprise:~/src/netbeans/nbbuild/testuserdir/var/cache/index/s1$
```
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