From 0b68c1edae0fcc62eddcfe62090480f7acc02c00 Mon Sep 17 00:00:00 2001
From: Alexander Nozik <altavir@gmail.com>
Date: Wed, 22 Jun 2022 20:00:27 +0300
Subject: [PATCH] minor API update

---
 build.gradle.kts                              |  2 +-
 .../space/kscience/dataforge/data/DataTree.kt |  7 +++++
 .../space/kscience/dataforge/io/IOPlugin.kt   |  2 ++
 .../kscience/dataforge/io/workDirectory.kt    | 28 +++++++++++++++++++
 dataforge-workspace/build.gradle.kts          |  4 +++
 gradle.properties                             |  2 +-
 6 files changed, 43 insertions(+), 2 deletions(-)
 create mode 100644 dataforge-io/src/jvmMain/kotlin/space/kscience/dataforge/io/workDirectory.kt

diff --git a/build.gradle.kts b/build.gradle.kts
index e3961065..d153653d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
 
 allprojects {
     group = "space.kscience"
-    version = "0.6.0-dev-9"
+    version = "0.6.0-dev-10"
 }
 
 subprojects {
diff --git a/dataforge-data/src/commonMain/kotlin/space/kscience/dataforge/data/DataTree.kt b/dataforge-data/src/commonMain/kotlin/space/kscience/dataforge/data/DataTree.kt
index 79a44b01..1cf8971c 100644
--- a/dataforge-data/src/commonMain/kotlin/space/kscience/dataforge/data/DataTree.kt
+++ b/dataforge-data/src/commonMain/kotlin/space/kscience/dataforge/data/DataTree.kt
@@ -6,6 +6,7 @@ import space.kscience.dataforge.names.*
 import kotlin.collections.component1
 import kotlin.collections.component2
 import kotlin.reflect.KType
+import kotlin.reflect.typeOf
 
 public sealed class DataTreeItem<out T : Any> {
 
@@ -63,6 +64,12 @@ public interface DataTree<out T : Any> : DataSet<T> {
          * A name token used to designate tree node meta
          */
         public val META_ITEM_NAME_TOKEN: NameToken = NameToken("@meta")
+
+        public inline fun <reified T : Any> empty(meta: Meta = Meta.EMPTY): DataTree<T> = object : DataTree<T> {
+            override val items: Map<NameToken, DataTreeItem<T>> get() = emptyMap()
+            override val dataType: KType get() = typeOf<T>()
+            override val meta: Meta get() = meta
+        }
     }
 }
 
diff --git a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOPlugin.kt b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOPlugin.kt
index 7b1a6b2c..640219d9 100644
--- a/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOPlugin.kt
+++ b/dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOPlugin.kt
@@ -68,6 +68,8 @@ public class IOPlugin(meta: Meta) : AbstractPlugin(meta) {
 
         override val type: KClass<out IOPlugin> = IOPlugin::class
         override fun build(context: Context, meta: Meta): IOPlugin = IOPlugin(meta)
+
+        public val WORK_DIRECTORY_KEY: Name = Name.of("io", "workDirectory")
     }
 }
 
diff --git a/dataforge-io/src/jvmMain/kotlin/space/kscience/dataforge/io/workDirectory.kt b/dataforge-io/src/jvmMain/kotlin/space/kscience/dataforge/io/workDirectory.kt
new file mode 100644
index 00000000..4e799ee1
--- /dev/null
+++ b/dataforge-io/src/jvmMain/kotlin/space/kscience/dataforge/io/workDirectory.kt
@@ -0,0 +1,28 @@
+package space.kscience.dataforge.io
+
+import space.kscience.dataforge.context.ContextBuilder
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.set
+import space.kscience.dataforge.meta.string
+import java.nio.file.Path
+import kotlin.io.path.Path
+
+
+public val IOPlugin.workDirectory: Path
+    get() {
+        val workDirectoryPath = meta[IOPlugin.WORK_DIRECTORY_KEY].string
+            ?: context.properties[IOPlugin.WORK_DIRECTORY_KEY].string
+            ?: ".dataforge"
+
+        return Path(workDirectoryPath)
+    }
+
+public fun ContextBuilder.workDirectory(path: String) {
+    properties {
+        set(IOPlugin.WORK_DIRECTORY_KEY, path)
+    }
+}
+
+public fun ContextBuilder.workDirectory(path: Path){
+    workDirectory(path.toAbsolutePath().toString())
+}
diff --git a/dataforge-workspace/build.gradle.kts b/dataforge-workspace/build.gradle.kts
index c6e62b36..5a8f911f 100644
--- a/dataforge-workspace/build.gradle.kts
+++ b/dataforge-workspace/build.gradle.kts
@@ -3,6 +3,10 @@ plugins {
     id("ru.mipt.npm.gradle.native")
 }
 
+kscience{
+    useCoroutines()
+}
+
 kotlin {
     sourceSets {
         commonMain{
diff --git a/gradle.properties b/gradle.properties
index 93001b21..b0680497 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,4 +5,4 @@ kotlin.code.style=official
 kotlin.mpp.stability.nowarn=true
 #kotlin.incremental.js.ir=true
 
-toolsVersion=0.11.5-kotlin-1.6.21
+toolsVersion=0.11.7-kotlin-1.7.0