File eclipse-hide-droplets-from-install-wizard.patch of Package eclipse

From a23545ef5b4cbb94ff048fda2839ba08c3593d50 Mon Sep 17 00:00:00 2001
From: Mat Booth <mat.booth@redhat.com>
Date: Thu, 3 May 2018 15:58:49 +0100
Subject: [PATCH] Bug 534326 - Awkward p2 UI when many droplets are installed
 Filter out software site locations where we know that they are p2 droplets in
 places we show the list to the user. Change-Id:
 I12364223850862783cb7cffd32fb7428fbf6b270 Signed-off-by: Mat Booth
 <mat.booth@redhat.com>

---
 .../p2/ui/dialogs/RepositorySelectionGroup.java   | 13 +++++++++++++
 .../equinox/p2/ui/RepositoryManipulationPage.java | 15 ++++++++++++++-
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/rt.equinox.p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/dialogs/RepositorySelectionGroup.java b/rt.equinox.p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/dialogs/RepositorySelectionGroup.java
index d07be5d43..c666f8fdc 100644
--- a/rt.equinox.p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/dialogs/RepositorySelectionGroup.java
+++ b/rt.equinox.p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/dialogs/RepositorySelectionGroup.java
@@ -303,6 +303,19 @@ public class RepositorySelectionGroup {
 	void fillRepoCombo(final String selection) {
 		RepositoryTracker tracker = ui.getRepositoryTracker();
 		URI[] sites = tracker.getKnownRepositories(ui.getSession());
+		// Filter out sites that are actually installed p2 droplets
+		String fragments = System.getProperty("p2.fragments"); //$NON-NLS-1$
+		ArrayList<URI> filteredSites = new ArrayList<>(Arrays.asList(sites));
+		if (fragments != null) {
+			for (String root : fragments.split(",")) { //$NON-NLS-1$
+				for (URI uri : sites) {
+					if (uri.getPath() != null && uri.getPath().startsWith(root)) {
+						filteredSites.remove(uri);
+					}
+				}
+			}
+		}
+		sites = filteredSites.toArray(new URI[0]);
 		boolean hasLocalSites = getLocalSites().length > 0;
 		final String[] items;
 		if (hasLocalSites) {
diff --git a/rt.equinox.p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/p2/ui/RepositoryManipulationPage.java b/rt.equinox.p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/p2/ui/RepositoryManipulationPage.java
index 78fb5398e..b8e724b66 100644
--- a/rt.equinox.p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/p2/ui/RepositoryManipulationPage.java
+++ b/rt.equinox.p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/p2/ui/RepositoryManipulationPage.java
@@ -133,9 +133,22 @@ public class RepositoryManipulationPage extends PreferencePage implements IWorkb
 			if (cachedElements == null) {
 				Object[] children = super.fetchChildren(o, monitor);
 				cachedElements = new Hashtable<>(children.length);
+				String fragments = System.getProperty("p2.fragments"); //$NON-NLS-1$
 				for (Object element : children) {
 					if (element instanceof MetadataRepositoryElement) {
-						put((MetadataRepositoryElement) element);
+						// Filter out locations that are actually installed p2 droplets
+						if (fragments != null) {
+							boolean isDroplet = false;
+							for (String root : fragments.split(",")) { //$NON-NLS-1$
+								URI childLoc = ((MetadataRepositoryElement) element).getLocation();
+								if (childLoc.getPath() != null && childLoc.getPath().startsWith(root)) {
+									isDroplet = true;
+								}
+							}
+							if (!isDroplet) {
+								put((MetadataRepositoryElement) element);
+							}
+						}
 					}
 				}
 			}
-- 
2.21.1
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