test+fix: add basic tests and fix issues with it

launcher/CMakeLists.txt

@@ -551,6 +551,12 @@ set(PACKWIZ_SOURCES
     modplatform/packwiz/Packwiz.cpp
 )
 
+add_unit_test(Packwiz
+    SOURCES modplatform/packwiz/Packwiz_test.cpp
+    DATA modplatform/packwiz/testdata
+    LIBS Launcher_logic
+    )
+
 set(TECHNIC_SOURCES
     modplatform/technic/SingleZipPackInstallTask.h
     modplatform/technic/SingleZipPackInstallTask.cpp

launcher/minecraft/mod/Mod.cpp

@@ -20,6 +20,8 @@
 
 #include <FileSystem.h>
 #include <QDebug>
+
+#include "Application.h"
 #include "MetadataHandler.h"
 
 namespace {
@@ -174,8 +176,7 @@ void Mod::finishResolvingWithDetails(std::shared_ptr<ModDetails> details)
     m_resolved = true;
     m_localDetails = details;
 
-    if (fromMetadata() && m_temp_metadata->isValid()) {
-        m_localDetails->metadata = m_temp_metadata;
-        m_temp_metadata.reset();
+    if (fromMetadata() && m_temp_metadata->isValid() && m_localDetails.get()) {
+        m_localDetails->metadata.swap(m_temp_metadata);
     }
 }

launcher/minecraft/mod/Mod.h

@@ -20,7 +20,6 @@
 #include <QList>
 
 #include "ModDetails.h"
-#include "minecraft/mod/MetadataHandler.h"
 
 class Mod
 {

launcher/minecraft/mod/tasks/ModFolderLoadTask.cpp

@@ -34,8 +34,14 @@ void ModFolderLoadTask::getFromMetadata()
         if (entry == "." || entry == "..")
             continue;
 
-        entry.chop(5);  // Remove .toml at the end
-        Mod mod(m_mods_dir, Metadata::get(m_index_dir, entry));
+        auto metadata = Metadata::get(m_index_dir, entry);
+        // TODO: Don't simply return. Instead, show to the user that the metadata is there, but
+        // it's not currently 'installed' (i.e. there's no JAR file yet).
+        if(!metadata.isValid()){
+            return;
+        }
+
+        Mod mod(m_mods_dir, metadata);
         m_result->mods[mod.internal_id()] = mod;
     }
 }

launcher/modplatform/ModIndex.h

@@ -19,7 +19,7 @@ class ProviderCapabilities {
     {
         switch(p){
         case Provider::MODRINTH:
-            return "sha256";
+            return "sha512";
         case Provider::FLAME:
             return "murmur2";
         }

launcher/modplatform/packwiz/Packwiz.cpp

@@ -14,6 +14,8 @@ namespace Packwiz {
 // Helpers
 static inline QString indexFileName(QString const& mod_name)
 {
+    if(mod_name.endsWith(".toml"))
+        return mod_name;
     return QString("%1.toml").arg(mod_name);
 }
 
@@ -91,8 +93,16 @@ void V1::updateModIndex(QDir& index_dir, Mod& mod)
 
         in_stream << QString("\n[update]\n");
         in_stream << QString("[update.%1]\n").arg(ModPlatform::ProviderCapabilities::providerName(mod.provider));
-        addToStream("file-id", mod.file_id.toString());
-        addToStream("project-id", mod.project_id.toString());
+        switch(mod.provider){
+        case(ModPlatform::Provider::FLAME):
+            in_stream << QString("file-id = %1\n").arg(mod.file_id.toString());
+            in_stream << QString("project-id = %1\n").arg(mod.project_id.toString());
+            break;
+        case(ModPlatform::Provider::MODRINTH):
+            addToStream("mod-id", mod.mod_id().toString());
+            addToStream("version", mod.version().toString());
+            break;
+        }
     }
 }
 
@@ -110,18 +120,44 @@ void V1::deleteModIndex(QDir& index_dir, QString& mod_name)
     }
 }
 
-auto V1::getIndexForMod(QDir& index_dir, QString& mod_name) -> Mod
+// Helper functions for extracting data from the TOML file
+static auto stringEntry(toml_table_t* parent, const char* entry_name) -> QString
+{
+    toml_datum_t var = toml_string_in(parent, entry_name);
+    if (!var.ok) {
+        qCritical() << QString("Failed to read str property '%1' in mod metadata.").arg(entry_name);
+        return {};
+    }
+
+    QString tmp = var.u.s;
+    free(var.u.s);
+
+    return tmp;
+}
+
+static auto intEntry(toml_table_t* parent, const char* entry_name) -> int
+{
+    toml_datum_t var = toml_int_in(parent, entry_name);
+    if (!var.ok) {
+        qCritical() << QString("Failed to read int property '%1' in mod metadata.").arg(entry_name);
+        return {};
+    }
+
+    return var.u.i;
+}
+
+auto V1::getIndexForMod(QDir& index_dir, QString& index_file_name) -> Mod
 {
     Mod mod;
 
-    QFile index_file(index_dir.absoluteFilePath(indexFileName(mod_name)));
+    QFile index_file(index_dir.absoluteFilePath(indexFileName(index_file_name)));
 
     if (!index_file.exists()) {
-        qWarning() << QString("Tried to get a non-existent mod metadata for %1").arg(mod_name);
+        qWarning() << QString("Tried to get a non-existent mod metadata for %1").arg(index_file_name);
         return {};
     }
     if (!index_file.open(QIODevice::ReadOnly)) {
-        qWarning() << QString("Failed to open mod metadata for %1").arg(mod_name);
+        qWarning() << QString("Failed to open mod metadata for %1").arg(index_file_name);
         return {};
     }
 
@@ -137,28 +173,8 @@ auto V1::getIndexForMod(QDir& index_dir, QString& mod_name) -> Mod
         return {};
     }
     
-    // Helper function for extracting data from the TOML file
-    auto stringEntry = [&](toml_table_t* parent, const char* entry_name) -> QString {
-        toml_datum_t var = toml_string_in(parent, entry_name);
-        if (!var.ok) {
-            qCritical() << QString("Failed to read property '%1' in mod metadata.").arg(entry_name);
-            return {};
-        }
-
-        QString tmp = var.u.s;
-        free(var.u.s);
-
-        return tmp;
-    };
-
     { // Basic info
         mod.name = stringEntry(table, "name");
-        // Basic sanity check
-        if (mod.name != mod_name) {
-            qCritical() << QString("Name mismatch in mod metadata:\nExpected:%1\nGot:%2").arg(mod_name, mod.name);
-            return {};
-        }
-
         mod.filename = stringEntry(table, "filename");
         mod.side = stringEntry(table, "side");
     }
@@ -188,15 +204,17 @@ auto V1::getIndexForMod(QDir& index_dir, QString& mod_name) -> Mod
         toml_table_t* mod_provider_table;
         if ((mod_provider_table = toml_table_in(update_table, ProviderCaps::providerName(Provider::FLAME)))) {
             mod.provider = Provider::FLAME;
+            mod.file_id = intEntry(mod_provider_table, "file-id");
+            mod.project_id = intEntry(mod_provider_table, "project-id");
         } else if ((mod_provider_table = toml_table_in(update_table, ProviderCaps::providerName(Provider::MODRINTH)))) {
             mod.provider = Provider::MODRINTH;
+            mod.mod_id() = stringEntry(mod_provider_table, "mod-id");
+            mod.version() = stringEntry(mod_provider_table, "version");
         } else {
             qCritical() << QString("No mod provider on mod metadata!");
             return {};
         }
         
-        mod.file_id = stringEntry(mod_provider_table, "file-id");
-        mod.project_id = stringEntry(mod_provider_table, "project-id");
     }
 
     toml_free(table);

launcher/modplatform/packwiz/Packwiz.h

@@ -33,8 +33,13 @@ class V1 {
         QVariant project_id {};
 
        public:
-        // This is a heuristic, but should work for now.
-        auto isValid() const -> bool { return !name.isEmpty(); }
+        // This is a totally heuristic, but should work for now.
+        auto isValid() const -> bool { return !name.isEmpty() && !project_id.isNull(); }
+
+        // Different providers can use different names for the same thing
+        // Modrinth-specific
+        auto mod_id() -> QVariant& { return project_id; }
+        auto version() -> QVariant& { return file_id; }
     };
 
     /* Generates the object representing the information in a mod.toml file via
@@ -58,7 +63,7 @@ class V1 {
     /* Gets the metadata for a mod with a particular name.
      * If the mod doesn't have a metadata, it simply returns an empty Mod object.
      * */
-    static auto getIndexForMod(QDir& index_dir, QString& mod_name) -> Mod;
+    static auto getIndexForMod(QDir& index_dir, QString& index_file_name) -> Mod;
 };
 
 } // namespace Packwiz

launcher/modplatform/packwiz/Packwiz_test.cpp

@@ -0,0 +1,68 @@
+#include <QTemporaryDir>
+#include <QTest>
+
+#include "TestUtil.h"
+#include "Packwiz.h"
+
+class PackwizTest : public QObject {
+    Q_OBJECT
+
+   private slots:
+   // Files taken from https://github.com/packwiz/packwiz-example-pack
+   void loadFromFile_Modrinth()
+   {
+        QString source = QFINDTESTDATA("testdata");
+
+        QDir index_dir(source);
+        QString name_mod("borderless-mining.toml");
+        QVERIFY(index_dir.entryList().contains(name_mod));
+
+        auto metadata = Packwiz::V1::getIndexForMod(index_dir, name_mod);
+
+        QVERIFY(metadata.isValid());
+
+        QCOMPARE(metadata.name, "Borderless Mining");
+        QCOMPARE(metadata.filename, "borderless-mining-1.1.1+1.18.jar");
+        QCOMPARE(metadata.side, "client");
+        
+        QCOMPARE(metadata.url, QUrl("https://cdn.modrinth.com/data/kYq5qkSL/versions/1.1.1+1.18/borderless-mining-1.1.1+1.18.jar"));
+        QCOMPARE(metadata.hash_format, "sha512");
+        QCOMPARE(metadata.hash, "c8fe6e15ddea32668822dddb26e1851e5f03834be4bcb2eff9c0da7fdc086a9b6cead78e31a44d3bc66335cba11144ee0337c6d5346f1ba63623064499b3188d");
+
+        QCOMPARE(metadata.provider, ModPlatform::Provider::MODRINTH);
+        QCOMPARE(metadata.version(), "ug2qKTPR");
+        QCOMPARE(metadata.mod_id(), "kYq5qkSL");
+   }
+
+    void loadFromFile_Curseforge()
+    {
+        QString source = QFINDTESTDATA("testdata");
+
+        QDir index_dir(source);
+        QString name_mod("screenshot-to-clipboard-fabric.toml");
+        QVERIFY(index_dir.entryList().contains(name_mod));
+
+        // Try without the .toml at the end
+        name_mod.chop(5);
+
+        auto metadata = Packwiz::V1::getIndexForMod(index_dir, name_mod);
+
+        QVERIFY(metadata.isValid());
+
+        QCOMPARE(metadata.name, "Screenshot to Clipboard (Fabric)");
+        QCOMPARE(metadata.filename, "screenshot-to-clipboard-1.0.7-fabric.jar");
+        QCOMPARE(metadata.side, "both");
+        
+        QCOMPARE(metadata.url, QUrl("https://edge.forgecdn.net/files/3509/43/screenshot-to-clipboard-1.0.7-fabric.jar"));
+        QCOMPARE(metadata.hash_format, "murmur2");
+        QCOMPARE(metadata.hash, "1781245820");
+
+        QCOMPARE(metadata.provider, ModPlatform::Provider::FLAME);
+        QCOMPARE(metadata.file_id, 3509043);
+        QCOMPARE(metadata.project_id, 327154);
+    }
+};
+
+QTEST_GUILESS_MAIN(PackwizTest)
+
+#include "Packwiz_test.moc"