From 1f7f266c24a074de37f0064d6e8a222e2715bbdb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20L=C3=A4ubrich?= <laeubi@laeubi-soft.de>
Date: Thu, 15 Feb 2024 13:33:16 +0100
Subject: [PATCH] Only warn if a referenced repository can not be loaded

Currently Tycho fails completely if one of the referenced repositories
can not be loaded, as it is hard to control references and they probably
are gone over times this makes the repository that use them unusable.

This now only warns if a referenced repository can not be loaded instead
of failing completely.
---
 .../p2resolver/TargetPlatformFactoryImpl.java | 37 +++++++++++--------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/tycho-core/src/main/java/org/eclipse/tycho/p2resolver/TargetPlatformFactoryImpl.java b/tycho-core/src/main/java/org/eclipse/tycho/p2resolver/TargetPlatformFactoryImpl.java
index e31cfbb8e8..0ae6282857 100644
--- a/tycho-core/src/main/java/org/eclipse/tycho/p2resolver/TargetPlatformFactoryImpl.java
+++ b/tycho-core/src/main/java/org/eclipse/tycho/p2resolver/TargetPlatformFactoryImpl.java
@@ -406,7 +406,13 @@ private LinkedHashSet<IInstallableUnit> gatherExternalInstallableUnits(
         Set<URI> loaded = new HashSet<>();
         for (MavenRepositoryLocation location : completeRepositories) {
             artifactRepositories.add(location.getURL());
-            loadMetadataRepository(location, metadataRepositories, loaded, artifactRepositories, includeReferences);
+            try {
+                loadMetadataRepository(location, metadataRepositories, loaded, artifactRepositories, includeReferences);
+            } catch (ProvisionException e) {
+                String idMessage = location.getId() == null ? "" : " with ID '" + location.getId() + "'";
+                throw new RuntimeException(
+                        "Failed to load p2 repository" + idMessage + " from location " + location.getURL(), e);
+            }
         }
         if (includeLocalMavenRepo) {
             metadataRepositories.add(localMetadataRepository);
@@ -429,30 +435,29 @@ private LinkedHashSet<IInstallableUnit> gatherExternalInstallableUnits(
 
     private void loadMetadataRepository(MavenRepositoryLocation location,
             List<IMetadataRepository> metadataRepositories, Set<URI> loaded, Set<URI> artifactRepositories,
-            boolean includeReferences) {
+            boolean includeReferences) throws ProvisionException {
         if (loaded.add(location.getURL().normalize())) {
-            try {
-                IMetadataRepository repository = remoteMetadataRepositoryManager.loadRepository(location.getURL(),
-                        monitor);
-                metadataRepositories.add(repository);
-                if (includeReferences) {
-                    for (IRepositoryReference reference : repository.getReferences()) {
-                        if ((reference.getOptions() | IRepository.ENABLED) != 0) {
-                            if (reference.getType() == IRepository.TYPE_METADATA) {
+            IMetadataRepository repository = remoteMetadataRepositoryManager.loadRepository(location.getURL(), monitor);
+            metadataRepositories.add(repository);
+            if (includeReferences) {
+                for (IRepositoryReference reference : repository.getReferences()) {
+                    if ((reference.getOptions() | IRepository.ENABLED) != 0) {
+                        if (reference.getType() == IRepository.TYPE_METADATA) {
+                            try {
                                 loadMetadataRepository(
                                         new MavenRepositoryLocation(reference.getNickname(), reference.getLocation()),
                                         metadataRepositories, loaded, artifactRepositories, includeReferences);
-                            } else if (reference.getType() == IRepository.TYPE_ARTIFACT) {
-                                artifactRepositories.add(reference.getLocation());
+                            } catch (ProvisionException e) {
+                                logger.warn("Loading referenced repository failed: " + e.getMessage(),
+                                        logger.isDebugEnabled() ? e : null);
                             }
+                        } else if (reference.getType() == IRepository.TYPE_ARTIFACT) {
+                            artifactRepositories.add(reference.getLocation());
                         }
                     }
                 }
-            } catch (ProvisionException e) {
-                String idMessage = location.getId() == null ? "" : " with ID '" + location.getId() + "'";
-                throw new RuntimeException(
-                        "Failed to load p2 repository" + idMessage + " from location " + location.getURL(), e);
             }
+
         }
     }