Recommendation suppression for modpacks

Core/Relationships/RelationshipResolver.cs

@@ -229,6 +229,7 @@ private void ResolveStanza(List<RelationshipDescriptor>        stanza,
                 if (options.get_recommenders && descriptor.suppress_recommendations)
                 {
                     log.DebugFormat("Skipping {0} because get_recommenders option is set", descriptor.ToString());
+                    suppressedRecommenders.Add(descriptor);
                     continue;
                 }
                 options = orig_options.OptionsFor(descriptor);
@@ -575,18 +576,25 @@ public IEnumerable<CkanModule> Dependencies()
 
         public IEnumerable<CkanModule> Recommendations(HashSet<CkanModule> dependencies)
             => modlist.Values.Except(dependencies)
-                             .Where(m => ReasonsFor(m).Any(r => r is SelectionReason.Recommended
-                                                                && dependencies.Contains(r.Parent)))
+                             .Where(m => ValidRecSugReasons(dependencies,
+                                                            ReasonsFor(m).Where(r => r is SelectionReason.Recommended)
+                                                                         .ToList()))
                              .OrderByDescending(totalDependers);
 
         public IEnumerable<CkanModule> Suggestions(HashSet<CkanModule> dependencies,
                                                    List<CkanModule>    recommendations)
             => modlist.Values.Except(dependencies)
                              .Except(recommendations)
-                             .Where(m => ReasonsFor(m).Any(r => r is SelectionReason.Suggested
-                                                                && dependencies.Contains(r.Parent)))
+                             .Where(m => ValidRecSugReasons(dependencies,
+                                                            ReasonsFor(m).Where(r => r is SelectionReason.Suggested)
+                                                                         .ToList()))
                              .OrderByDescending(totalDependers);
 
+        private bool ValidRecSugReasons(HashSet<CkanModule>   dependencies,
+                                        List<SelectionReason> recSugReasons)
+            => recSugReasons.Any(r => dependencies.Contains(r.Parent))
+               && !suppressedRecommenders.Any(rel => recSugReasons.Any(r => rel.WithinBounds(r.Parent)));
+
         public ParallelQuery<KeyValuePair<CkanModule, HashSet<string>>> Supporters(
             HashSet<CkanModule>     supported,
             IEnumerable<CkanModule> toExclude)
@@ -682,6 +690,12 @@ private void AddReason(CkanModule module, SelectionReason reason)
         private readonly Dictionary<CkanModule, List<SelectionReason>> reasons =
             new Dictionary<CkanModule, List<SelectionReason>>();
 
+        /// <summary>
+        /// Depends relationships with suppress_recommendations=true,
+        /// to be applied to all recommendations and suggestions
+        /// </summary>
+        private HashSet<RelationshipDescriptor> suppressedRecommenders = new HashSet<RelationshipDescriptor>();
+
         private readonly IRegistryQuerier            registry;
         private readonly GameVersionCriteria         versionCrit;
         private readonly RelationshipResolverOptions options;

GUI/Controls/EditModpack.cs

@@ -1,4 +1,5 @@
 using System;
+using System.IO;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
@@ -32,6 +33,7 @@ public EditModpack()
             ToolTip.SetToolTip(GameVersionMaxComboBox,  Properties.Resources.EditModpackTooltipGameVersionMax);
             ToolTip.SetToolTip(LicenseComboBox,         Properties.Resources.EditModpackTooltipLicense);
             ToolTip.SetToolTip(IncludeVersionsCheckbox, Properties.Resources.EditModpackTooltipIncludeVersions);
+            ToolTip.SetToolTip(IncludeOptRelsCheckbox,  Properties.Resources.EditModpackTooltipIncludeOptRels);
             ToolTip.SetToolTip(DependsRadioButton,      Properties.Resources.EditModpackTooltipDepends);
             ToolTip.SetToolTip(RecommendsRadioButton,   Properties.Resources.EditModpackTooltipRecommends);
             ToolTip.SetToolTip(SuggestsRadioButton,     Properties.Resources.EditModpackTooltipSuggests);
@@ -322,7 +324,7 @@ private void ExportModpackButton_Click(object sender, EventArgs e)
                 badField.Focus();
                 user.RaiseError(error);
             }
-            else if (TrySavePrompt(modpackExportOptions, out _, out string filename))
+            else if (TrySavePrompt(modpackExportOptions, out string filename))
             {
                 if (module.depends.Count == 0)
                 {
@@ -336,11 +338,15 @@ private void ExportModpackButton_Click(object sender, EventArgs e)
                 {
                     module.suggests = null;
                 }
-                CkanModule.ToFile(ApplyVersionsCheckbox(module), filename);
+                CkanModule.ToFile(ApplyCheckboxes(module), filename);
+                OpenFileBrowser(filename);
                 task?.SetResult(true);
             }
         }
 
+        private CkanModule ApplyCheckboxes(CkanModule input)
+            => ApplyIncludeOptRelsCheckbox(ApplyVersionsCheckbox(input));
+
         private CkanModule ApplyVersionsCheckbox(CkanModule input)
         {
             if (IncludeVersionsCheckbox.Checked)
@@ -375,7 +381,38 @@ private CkanModule ApplyVersionsCheckbox(CkanModule input)
             }
         }
 
-        private bool TrySavePrompt(List<ExportOption> exportOptions, out ExportOption selectedOption, out string filename)
+        private CkanModule ApplyIncludeOptRelsCheckbox(CkanModule input)
+        {
+            if (IncludeOptRelsCheckbox.Checked)
+            {
+                return input;
+            }
+            else
+            {
+                var newMod = CkanModule.FromJson(CkanModule.ToJson(input));
+                foreach (var rel in newMod.depends)
+                {
+                    rel.suppress_recommendations = true;
+                }
+                return newMod;
+            }
+        }
+
+        private void OpenFileBrowser(string location)
+        {
+            if (File.Exists(location))
+            {
+                // We need the folder of the file
+                // Otherwise the OS would try to open the file in its default application
+                location = Path.GetDirectoryName(location);
+            }
+            if (Directory.Exists(location))
+            {
+                Utilities.ProcessStartURL(location);
+            }
+        }
+
+        private bool TrySavePrompt(List<ExportOption> exportOptions, out string filename)
         {
             var dlg = new SaveFileDialog()
             {
@@ -384,13 +421,11 @@ private bool TrySavePrompt(List<ExportOption> exportOptions, out ExportOption se
             };
             if (dlg.ShowDialog(ParentForm) == DialogResult.OK)
             {
-                selectedOption = exportOptions[dlg.FilterIndex - 1];
                 filename       = dlg.FileName;
                 return true;
             }
             else
             {
-                selectedOption = null;
                 filename       = null;
                 return false;
             }

GUI/Controls/EditModpack.resx

@@ -125,6 +125,7 @@
   <data name="GameVersionLabel.Text" xml:space="preserve"><value>Game versions:</value></data>
   <data name="LicenseLabel.Text" xml:space="preserve"><value>Licence:</value></data>
   <data name="IncludeVersionsCheckbox.Text" xml:space="preserve"><value>Save mod versions</value></data>
+  <data name="IncludeOptRelsCheckbox.Text" xml:space="preserve"><value>Include optional relationships</value></data>
   <data name="ModNameColumn.Text" xml:space="preserve"><value>Mod</value></data>
   <data name="ModVersionColumn.Text" xml:space="preserve"><value>Version</value></data>
   <data name="ModAbstractColumn.Text" xml:space="preserve"><value>Description</value></data>