Introduce publication (#254)

interface-test/src/test/java/coursierapi/test/FetchTests.java

@@ -1,6 +1,7 @@
 package coursierapi.test;
 
 import coursierapi.Dependency;
+import coursierapi.Publication;
 import coursierapi.Fetch;
 import coursierapi.FetchResult;
 import coursierapi.error.CoursierError;
@@ -44,4 +45,28 @@ public void simple() {
 
     }
 
+
+    @Test
+    public void withPublication() {
+        Dependency dep = Dependency.of("com.google.protobuf", "protoc", "3.18.2")
+                .withPublication(new Publication("protoc", "jar", "exe", "windows-x86_32"));
+
+        Fetch fetch = Fetch.create().addDependencies(dep);
+
+        FetchResult result;
+        try {
+            result = fetch.fetchResult();
+        } catch (CoursierError e) {
+            throw new RuntimeException(e);
+        }
+
+        Set<String> fileNames = new HashSet<>();
+        for (File f : result.getFiles()) {
+            fileNames.add(f.getName());
+        }
+
+        Set<String> expectedFileNames = new HashSet<>(Arrays.asList("protoc-3.18.2-windows-x86_32.exe"));
+        assertEquals(expectedFileNames, fileNames);
+    }
+
 }

interface/src/main/java/coursierapi/Dependency.java

@@ -13,6 +13,7 @@ public final class Dependency implements Serializable {
     private String configuration;
     private String type;
     private String classifier;
+    private Publication publication;
     private boolean transitive;
 
 
@@ -23,6 +24,7 @@ private Dependency(Module module, String version) {
         this.configuration = "";
         this.type = "";
         this.classifier = "";
+        this.publication = null;
         this.transitive = true;
     }
 
@@ -38,6 +40,7 @@ public static Dependency of(Dependency dependency) {
                 .withConfiguration(dependency.getConfiguration())
                 .withType(dependency.getType())
                 .withClassifier(dependency.getClassifier())
+                .withPublication(dependency.getPublication())
                 .withTransitive(dependency.isTransitive());
     }
 
@@ -82,6 +85,11 @@ public Dependency withClassifier(String classifier) {
         return this;
     }
 
+    public Dependency withPublication(Publication publication) {
+        this.publication = publication;
+        return this;
+    }
+
     public Dependency withTransitive(boolean transitive) {
         this.transitive = transitive;
         return this;
@@ -99,14 +107,15 @@ public boolean equals(Object obj) {
                     this.configuration.equals(other.configuration) &&
                     this.type.equals(other.type) &&
                     this.classifier.equals(other.classifier) &&
+                    Objects.equals(this.publication, other.publication) &&
                     this.transitive == other.transitive;
         }
         return false;
     }
 
     @Override
     public int hashCode() {
-        return 37 * (37 * (37 * (37 * (37 * (37 * (17 + module.hashCode()) + version.hashCode()) + exclusions.hashCode()) + configuration.hashCode()) + type.hashCode()) + classifier.hashCode()) + Boolean.hashCode(transitive);
+        return 37 * (37 * (37 * (37 * (37 * (37 * (37 * (17 + module.hashCode()) + version.hashCode()) + exclusions.hashCode()) + configuration.hashCode()) + type.hashCode()) + classifier.hashCode()) + Objects.hashCode(publication)) + Boolean.hashCode(transitive);
     }
 
     @Override
@@ -135,6 +144,10 @@ public String toString() {
             b.append(", classifier=");
             b.append(classifier);
         }
+        if (publication != null) {
+            b.append(", publication=");
+            b.append(publication);
+        }
         if (!transitive) {
             b.append(", intransitive");
         }
@@ -167,6 +180,10 @@ public String getClassifier() {
         return classifier;
     }
 
+    public Publication getPublication() {
+        return publication;
+    }
+
     public boolean isTransitive() {
         return transitive;
     }

interface/src/main/java/coursierapi/Publication.java

@@ -0,0 +1,86 @@
+package coursierapi;
+
+import java.io.Serializable;
+
+public final class Publication implements Serializable {
+
+    private final String name;
+    private final String type;
+    private final String extension;
+    private final String classifier;
+
+    public Publication(String name, String type, String extension, String classifier) {
+        this.name = name;
+        this.type = type;
+        this.extension = extension;
+        this.classifier = classifier;
+    }
+
+    public Publication(String name) {
+        this(name, "", "", "");
+    }
+
+    public Publication(String name, String type) {
+        this(name, type, "", "");
+    }
+
+    public Publication(String name, String type, String extension) {
+        this(name, type, extension, "");
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public String getExtension() {
+        return extension;
+    }
+
+    public String getClassifier() {
+        return classifier;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o)
+            return true;
+        if (o instanceof Publication) {
+            Publication other = (Publication) o;
+            return name.equals(other.name) &&
+                   type.equals(other.type) &&
+                   extension.equals(other.extension) &&
+                   classifier.equals(other.classifier);
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return 37 * (37 * (37 * (37 * (17 + extension.hashCode()) + classifier.hashCode()) + type.hashCode()) + name.hashCode());
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder b = new StringBuilder("Publication(");
+        b.append(name);
+        b.append(", ");
+        if (!type.isEmpty()) {
+            b.append(", type=");
+            b.append(type);
+        }
+        if (!classifier.isEmpty()) {
+            b.append(", classifier=");
+            b.append(classifier);
+        }
+        if (extension != null) {
+            b.append(", extension=");
+            b.append(extension);
+        }
+        b.append(")");
+        return b.toString();
+    }
+}

interface/src/main/scala/coursier/internal/api/ApiHelper.scala

@@ -8,7 +8,7 @@ import coursier._
 import coursierapi.{Credentials, Logger, SimpleLogger}
 import coursier.cache.loggers.RefreshLogger
 import coursier.cache.{ArchiveCache, CacheDefaults, CacheLogger, FileCache, UnArchiver}
-import coursier.core.{Authentication, Configuration, Version}
+import coursier.core.{Authentication, Configuration, Extension, Publication, Version}
 import coursier.error.{CoursierError, FetchError, ResolutionError}
 import coursier.ivy.IvyRepository
 import coursier.jvm.{JavaHome, JvmCache}
@@ -117,11 +117,18 @@ object ApiHelper {
     val tpe = Type(dep.getType)
     val classifier = Classifier(dep.getClassifier)
 
-    Dependency(module0, dep.getVersion)
+    val dep0 = Dependency(module0, dep.getVersion)
       .withExclusions(exclusions)
       .withConfiguration(configuration)
       .withAttributes(Attributes(tpe, classifier))
       .withTransitive(dep.isTransitive)
+
+    Option(dep.getPublication)
+      .map { p =>
+        val p0 = Publication(p.getName, Type(p.getType), Extension(p.getExtension), Classifier(p.getClassifier))
+        dep0.withPublication(p0)
+      }
+      .getOrElse(dep0)
   }
 
   def dependency(dep: Dependency): coursierapi.Dependency =