Draft: Implement a basic artifact attributes API

build.gradle

@@ -64,7 +64,7 @@ tasks.withType(JavaCompile).configureEach {
 tasks.register('transformJar', JarTransformationTask) {
     addTransformer('net/minecraftforge/artifactural/gradle/GradleRepositoryAdapter') {
         it.methods.find {
-            it.name == '<init>' && it.desc == '(Lnet/minecraftforge/artifactural/api/repository/Repository;Lorg/gradle/api/internal/artifacts/repositories/DefaultMavenLocalArtifactRepository;)V'
+            it.name == '<init>' && it.desc == '(Lorg/gradle/api/artifacts/ConfigurationContainer;Lnet/minecraftforge/artifactural/api/repository/Repository;Lorg/gradle/api/internal/artifacts/repositories/DefaultMavenLocalArtifactRepository;)V'
         }?.tap {
             it.instructions.find {
                 it instanceof InsnNode && it.opcode == Opcodes.ACONST_NULL
@@ -258,6 +258,6 @@ publishing {
     }
 }
 
-changelog {
-    from '3.0'
-}
+//changelog {
+//    from '3.0'
+//}

header.txt

@@ -1,5 +1,5 @@
 Artifactural
-Copyright (c) 2018-2021.
+Copyright (c) 2018-2024.
 
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public

src/api/java/net/minecraftforge/artifactural/api/artifact/Artifact.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -19,13 +19,13 @@
 
 package net.minecraftforge.artifactural.api.artifact;
 
+import net.minecraftforge.artifactural.api.cache.ArtifactCache;
+import net.minecraftforge.artifactural.api.transform.ArtifactTransformer;
+
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 
-import net.minecraftforge.artifactural.api.cache.ArtifactCache;
-import net.minecraftforge.artifactural.api.transform.ArtifactTransformer;
-
 public interface Artifact {
 
     static Artifact none() {
@@ -48,6 +48,10 @@ default Artifact.Cached optionallyCache(ArtifactCache cache) {
         return this instanceof Artifact.Cached ? (Artifact.Cached) this : cache(cache);
     }
 
+    default ArtifactAttributeCollection getAttributes() {
+        return getIdentifier().getAttributes();
+    }
+
     boolean isPresent();
 
     InputStream openStream() throws IOException, MissingArtifactException;

src/api/java/net/minecraftforge/artifactural/api/artifact/ArtifactAttribute.java

@@ -0,0 +1,30 @@
+/*
+ * Artifactural
+ * Copyright (c) 2018-2024.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.artifactural.api.artifact;
+
+public interface ArtifactAttribute<T> {
+    static <T> ArtifactAttribute<T> create(String name, Class<T> type) {
+        return new SimpleArtifactAttribute<>(name, type);
+    }
+
+    String getName();
+
+    Class<T> getType();
+}

src/api/java/net/minecraftforge/artifactural/api/artifact/ArtifactAttributeCollection.java

@@ -0,0 +1,35 @@
+/*
+ * Artifactural
+ * Copyright (c) 2018-2024.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.artifactural.api.artifact;
+
+import java.util.Map.Entry;
+import java.util.Set;
+
+public interface ArtifactAttributeCollection extends Iterable<Entry<ArtifactAttribute<?>, Object>> {
+    static ArtifactAttributeCollection empty() {
+        return Internal.NO_ATTRIBUTES;
+    }
+
+    <T> T with(ArtifactAttribute<T> attribute, T value);
+
+    <T> T get(ArtifactAttribute<T> key);
+
+    Set<ArtifactAttribute<?>> keys();
+}

src/api/java/net/minecraftforge/artifactural/api/artifact/ArtifactIdentifier.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -37,6 +37,8 @@ static ArtifactIdentifier none() {
 
     String getExtension();
 
+    ArtifactAttributeCollection getAttributes();
+
     static Predicate<ArtifactIdentifier> groupMatches(String group) {
         return identifier -> identifier.getGroup().matches(group);
     }

src/api/java/net/minecraftforge/artifactural/api/artifact/ArtifactMetadata.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/api/java/net/minecraftforge/artifactural/api/artifact/ArtifactType.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/api/java/net/minecraftforge/artifactural/api/artifact/Internal.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -21,12 +21,39 @@
 
 import java.io.File;
 import java.io.InputStream;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
 
 import net.minecraftforge.artifactural.api.cache.ArtifactCache;
 import net.minecraftforge.artifactural.api.transform.ArtifactTransformer;
 
 final class Internal {
 
+    static final ArtifactAttributeCollection NO_ATTRIBUTES = new ArtifactAttributeCollection() {
+        @Override
+        public <T> T with(ArtifactAttribute<T> attribute, T value) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public <T> T get(ArtifactAttribute<T> key) {
+            return null;
+        }
+
+        @Override
+        public Set<ArtifactAttribute<?>> keys() {
+            return Collections.emptySet();
+        }
+
+        @Override
+        public Iterator<Entry<ArtifactAttribute<?>, Object>> iterator() {
+            return Collections.<Entry<ArtifactAttribute<?>, Object>>emptyList().iterator();
+        }
+    };
+
     static final ArtifactIdentifier NO_IDENTIFIER = new ArtifactIdentifier() {
 
         @Override
@@ -59,6 +86,10 @@ public String toString() {
             return "NO_IDENTIFIER";
         }
 
+        @Override
+        public ArtifactAttributeCollection getAttributes() {
+            return NO_ATTRIBUTES;
+        }
     };
 
     static final Artifact NO_ARTIFACT = new Artifact.Cached() {

src/api/java/net/minecraftforge/artifactural/api/artifact/MissingArtifactException.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/api/java/net/minecraftforge/artifactural/api/artifact/SimpleArtifactAttribute.java

@@ -0,0 +1,40 @@
+/*
+ * Artifactural
+ * Copyright (c) 2018-2024.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.artifactural.api.artifact;
+
+final class SimpleArtifactAttribute<T> implements ArtifactAttribute<T> {
+    private final String name;
+    private final Class<T> type;
+
+    public SimpleArtifactAttribute(final String name, final Class<T> type) {
+        this.name = name;
+        this.type = type;
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public Class<T> getType() {
+        return type;
+    }
+}

src/api/java/net/minecraftforge/artifactural/api/artifact/Streamable.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/api/java/net/minecraftforge/artifactural/api/cache/ArtifactCache.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/api/java/net/minecraftforge/artifactural/api/repository/ArtifactProvider.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/api/java/net/minecraftforge/artifactural/api/repository/Repository.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/api/java/net/minecraftforge/artifactural/api/transform/ArtifactTransformer.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/gradlecomp/java/net/minecraftforge/artifactural/gradle/DependencyResolver.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/gradlecomp/java/net/minecraftforge/artifactural/gradle/GradleArtifact.java

@@ -1,6 +1,6 @@
 /*
  * Artifactural
- * Copyright (c) 2018-2021.
+ * Copyright (c) 2018-2024.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public

src/gradlecomp/java/net/minecraftforge/artifactural/gradle/GradleAttributeCollection.java

@@ -0,0 +1,33 @@
+/*
+ * Artifactural
+ * Copyright (c) 2018-2024.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.artifactural.gradle;
+
+import net.minecraftforge.artifactural.api.artifact.ArtifactAttribute;
+import net.minecraftforge.artifactural.base.artifact.SimpleAttributeCollection;
+import org.gradle.api.attributes.Attribute;
+import org.gradle.api.attributes.AttributeContainer;
+
+public class GradleAttributeCollection extends SimpleAttributeCollection {
+    public GradleAttributeCollection(final AttributeContainer container) {
+        for (Attribute<?> attribute : container.keySet()) {
+            values.put(ArtifactAttribute.create(attribute.getName(), attribute.getType()), container.getAttribute(attribute));
+        }
+    }
+}