Factorize PackageDownloadRunner.TryGetRepositoriesForPackage method and add test

src/NuGet.Core/NuGet.CommandLine.XPlat/Commands/Package/Download/PackageDownloadRunner.cs

@@ -91,15 +91,31 @@ public static async Task<int> RunAsync(PackageDownloadArgs args, ILoggerWithColo
                 }
                 else
                 {
-                    if (!TryGetRepositoriesForPackage(
-                        package.Id,
-                        args,
-                        packageSourceMapping!,
-                        allRepositories,
-                        logger,
-                        out sourceRepositories))
+                    var mappedNames = packageSourceMapping!.GetConfiguredPackageSources(package.Id);
+
+                    if (mappedNames.Count == 0)
+                    {
+                        // fail, no sources mapped for this package
+                        var notConsideredSources = string.Join(
+                            ", ",
+                            allRepositories.Select(repository => repository.PackageSource));
+
+                        logger.LogError(string.Format(
+                            CultureInfo.CurrentCulture,
+                            Strings.PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped,
+                            package.Id,
+                            notConsideredSources));
+
+                        downloadedAllSuccessfully &= false;
+                        continue;
+                    }
+
+                    sourceRepositories = GetMappedRepositories(mappedNames, allRepositories, package.Id, logger);
+
+                    if (DetectAndReportInsecureSources(args.AllowInsecureConnections, sourceRepositories.Select(r => r.PackageSource), logger))
                     {
-                        return ExitCodeError;
+                        downloadedAllSuccessfully &= false;
+                        continue;
                     }
                 }
 
@@ -224,67 +240,49 @@ await ResolvePackageDownloadVersion(
             return (versionToDownload, downloadSourceRepository);
         }
 
-        /// <summary>
-        /// Builds the set of SourceRepository objects to use for a given package,
-        /// applying package source mapping
-        /// validating HTTP usage only on the *effective* sources.
-        /// </summary>
-        private static bool TryGetRepositoriesForPackage(
-            string packageId,
-            PackageDownloadArgs args,
-            PackageSourceMapping packageSourceMapping,
+        internal static IReadOnlyList<SourceRepository> GetMappedRepositories(
+            IReadOnlyList<string> mappedNames,
             IReadOnlyList<SourceRepository> allRepos,
-            ILoggerWithColor logger,
-            out IReadOnlyList<SourceRepository> repositories)
+            string packageId,
+            ILoggerWithColor logger)
         {
-            var mappedNames = packageSourceMapping.GetConfiguredPackageSources(packageId);
+            var mappedRepos = new List<SourceRepository>(mappedNames.Count);
 
-            // Only validate insecure sources when mapping produced something
-            if (mappedNames.Count > 0)
+            foreach (var mappedName in mappedNames)
             {
-                var mappedRepos = new List<SourceRepository>(mappedNames.Count);
-                foreach (var mappedName in mappedNames)
-                {
-                    SourceRepository? repo = null;
-                    for (int i = 0; i < allRepos.Count; i++)
-                    {
-                        if (string.Equals(allRepos[i].PackageSource.Name, mappedName, StringComparison.OrdinalIgnoreCase))
-                        {
-                            repo = allRepos[i];
-                            break;
-                        }
-                    }
+                SourceRepository? repo = FindRepositoryByName(mappedName, allRepos);
 
-                    if (repo != null)
-                    {
-                        mappedRepos.Add(repo);
-                    }
-                    else
-                    {
-                        logger.LogVerbose(
-                            string.Format(
-                                CultureInfo.CurrentCulture,
-                                Strings.PackageDownloadCommand_PackageSourceMapping_NoSuchSource,
-                                mappedName,
-                                packageId));
-                    }
+                if (repo != null)
+                {
+                    mappedRepos.Add(repo);
                 }
-
-                if (DetectAndReportInsecureSources(args.AllowInsecureConnections, mappedRepos.Select(repo => repo.PackageSource), logger))
+                else
                 {
-                    repositories = [];
-                    return false;
+                    logger.LogVerbose(
+                        string.Format(
+                            CultureInfo.CurrentCulture,
+                            Strings.PackageDownloadCommand_PackageSourceMapping_NoSuchSource,
+                            mappedName,
+                            packageId));
                 }
-
-                repositories = mappedRepos;
-                return true;
             }
-            else
+
+            return mappedRepos;
+        }
+
+        private static SourceRepository? FindRepositoryByName(
+            string mappedName,
+            IReadOnlyList<SourceRepository> allRepos)
+        {
+            for (int i = 0; i < allRepos.Count; i++)
             {
-                // No mapping for this package: fall back to all sources
-                repositories = allRepos;
-                return true;
+                if (string.Equals(allRepos[i].PackageSource.Name, mappedName, StringComparison.OrdinalIgnoreCase))
+                {
+                    return allRepos[i];
+                }
             }
+
+            return null;
         }
 
         private static async Task<bool> DownloadPackageAsync(

src/NuGet.Core/NuGet.CommandLine.XPlat/Strings.resx

@@ -1162,4 +1162,9 @@ Do not translate "PackageVersion"</comment>
     <comment>0 - package source name
 1 - package name</comment>
   </data>
+  <data name="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped" xml:space="preserve">
+    <value>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</value>
+    <comment>{0} = package ID 
+{1} = comma-separated list of all configured sources </comment>
+  </data>
 </root>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.cs.xlf

@@ -929,6 +929,12 @@ Další informace najdete tady: https://docs.nuget.org/docs/reference/command-li
         <target state="translated">Identifikátor balíčku (např. Newtonsoft.Json)</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">Mapovaný zdroj {0} pro balíček {1} nebyl nalezen mezi nakonfigurovanými zdroji.</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.de.xlf

@@ -929,6 +929,12 @@ Weitere Informationen finden Sie unter: https://docs.nuget.org/docs/reference/co
         <target state="translated">Paketbezeichner (z. B. „Newtonsoft.Json“).</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">Die zugeordnete Quelle {0} für das Paket {1} wurde unter den konfigurierten Quellen nicht gefunden.</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.es.xlf

@@ -929,6 +929,12 @@ Para obtener más información, visite https://docs.nuget.org/docs/reference/com
         <target state="translated">Identificador del paquete (por ejemplo, 'Newtonsoft.Json').</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">No se encontró el origen asignado '{0}' para el paquete '{1}' entre los orígenes configurados.</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.fr.xlf

@@ -929,6 +929,12 @@ Pour plus d'informations, visitez https://docs.nuget.org/docs/reference/command-
         <target state="translated">Identificateur de package (par exemple, « Newtonsoft.Json »).</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">La source mappée « {0} » pour le package « {1} » est introuvable parmi les sources configurées.</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.it.xlf

@@ -929,6 +929,12 @@ Per altre informazioni, vedere https://docs.nuget.org/docs/reference/command-lin
         <target state="translated">Identificatore del pacchetto ,ad esempio 'Newtonsoft.Json'.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">L'origine mappata '{0}' per il pacchetto '{1}' non è stata trovata tra le origini configurate.</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.ja.xlf

@@ -929,6 +929,12 @@ For more information, visit https://docs.nuget.org/docs/reference/command-line-r
         <target state="translated">パッケージ識別子 (例: 'Newtonsoft.Json')。</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">パッケージ '{1}' のマップされたソース '{0}' が、構成済みのソースの中に見つかりませんでした。</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.ko.xlf

@@ -929,6 +929,12 @@ For more information, visit https://docs.nuget.org/docs/reference/command-line-r
         <target state="translated">패키지 식별자(예: 'Newtonsoft.Json').</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">구성된 원본 중 '{1}' 패키지에 대해 매핑된 원본 '{0}'을(를) 찾을 수 없습니다.</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.pl.xlf

@@ -929,6 +929,12 @@ Aby uzyskać więcej informacji, odwiedź stronę https://docs.nuget.org/docs/re
         <target state="translated">Identyfikator pakietu (np. „Newtonsoft.Json”).</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">Zmapowane źródło „{0}” dla pakietu „{1}” nie zostało znalezione wśród skonfigurowanych źródeł.</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.pt-BR.xlf

@@ -929,6 +929,12 @@ Para obter mais informações, acesse https://docs.nuget.org/docs/reference/comm
         <target state="translated">Identificador de pacote (por exemplo, "Newtonsoft.Json").</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">A origem mapeada "{0}" para o pacote "{1}" não foi encontrada entre as fontes configuradas.</target>

src/NuGet.Core/NuGet.CommandLine.XPlat/xlf/Strings.ru.xlf

@@ -929,6 +929,12 @@ For more information, visit https://docs.nuget.org/docs/reference/command-line-r
         <target state="translated">Идентификатор пакета (например, "Newtonsoft.Json").</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSourcesMapped">
+        <source>Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</source>
+        <target state="new">Unable to download package '{0}'. PackageSourceMapping is enabled, but no mapped sources were found for this package. The following source(s) were not considered: {1}.</target>
+        <note>{0} = package ID 
+{1} = comma-separated list of all configured sources </note>
+      </trans-unit>
       <trans-unit id="PackageDownloadCommand_PackageSourceMapping_NoSuchSource">
         <source>The mapped source '{0}' for package '{1}' was not found among the configured sources.</source>
         <target state="translated">Сопоставленный источник "{0}" для пакета "{1}" не найден среди настроенных источников.</target>