Add *mavenLocal and *ivyLocal shortcuts for

@repository annotation

Fixes #86

Author: ileasile

README.md

@@ -78,7 +78,8 @@ The following REPL commands are supported:
 
 It is possible to add dynamic dependencies to the notebook using the following annotations:
  - `@file:DependsOn(<coordinates>)` - adds artifacts to classpath. Supports absolute and relative paths to class directories or jars, ivy and maven artifacts represented by colon separated string
- - `@file:Repository(<absolute-path>)` - adds a directory for relative path resolution or ivy/maven repository
+ - `@file:Repository(<absolute-path>)` - adds a directory for relative path resolution or ivy/maven repository.
+ To specify Maven local, use `@file:Repository("*mavenLocal")`.
 
 ### Default repositories
 

src/main/kotlin/org/jetbrains/kotlin/jupyter/resolver.kt

@@ -20,7 +20,10 @@ open class JupyterScriptDependenciesResolver(resolverConfig: ResolverConfig?) {
     private val resolver: ExternalDependenciesResolver
 
     init {
-        resolver = CompoundDependenciesResolver(FileSystemDependenciesResolver(), IvyResolver())
+        resolver = CompoundDependenciesResolver(
+                FileSystemDependenciesResolver(),
+                RemoteResolverWrapper(IvyResolver())
+        )
         resolverConfig?.repositories?.forEach { resolver.addRepository(it) }
     }
 
@@ -73,3 +76,54 @@ open class JupyterScriptDependenciesResolver(resolverConfig: ResolverConfig?) {
     }
 }
 
+class RemoteResolverWrapper(private val remoteResolver: ExternalDependenciesResolver):
+        ExternalDependenciesResolver by remoteResolver {
+
+    override fun acceptsRepository(repositoryCoordinates: RepositoryCoordinates): Boolean {
+        return hasRepository(repositoryCoordinates) ||
+                remoteResolver.acceptsRepository(repositoryCoordinates)
+    }
+
+    override fun addRepository(repositoryCoordinates: RepositoryCoordinates, options: ExternalDependenciesResolver.Options, sourceCodeLocation: SourceCode.LocationWithId?): ResultWithDiagnostics<Boolean> {
+        val repository = getRepository(repositoryCoordinates) ?: repositoryCoordinates
+        return remoteResolver.addRepository(repository, options, sourceCodeLocation)
+    }
+
+    companion object {
+        private class Shortcut(val shortcut: String, pathGetter: () -> String) {
+            val path = pathGetter()
+        }
+
+        private val HOME_PATH = System.getProperty("user.home") ?: "~"
+        private const val PREFIX = "*"
+        private val repositories: Map<String, Shortcut> =
+                listOf(
+                        Shortcut("mavenLocal") {
+                            // Simplified version, without looking in XML files
+                            val path = System.getProperty("maven.repo.local")
+                                    ?: "$HOME_PATH/.m2/repository"
+                            path.toURLString()
+                        },
+                        Shortcut("ivyLocal") {
+                            val path = "$HOME_PATH/.ivy2/cache"
+                            path.toURLString()
+                        },
+                )
+                .map {
+                    "${PREFIX}${it.shortcut}" to it
+                }
+                .toMap()
+
+        fun hasRepository(repository: RepositoryCoordinates): Boolean {
+            return repositories.containsKey(repository.string)
+        }
+
+        fun getRepository(repository: RepositoryCoordinates): RepositoryCoordinates? {
+            return repositories[repository.string]?.path?.let { RepositoryCoordinates(it) }
+        }
+
+        private fun String.toURLString(): String {
+            return File(this).toURI().toURL().toString()
+        }
+    }
+}