Add yaml parser and docker executor

1 files changed, 36 insertions, 0 deletions

diff --git a/crashboxd/src/main/scala/io/crashbox/ci/yaml/Yaml.scala b/crashboxd/src/main/scala/io/crashbox/ci/yaml/Yaml.scala
new file mode 100644
index 0000000..0370c76
--- /dev/null
+++ b/crashboxd/src/main/scala/io/crashbox/ci/yaml/Yaml.scala
@@ -0,0 +1,36 @@
+package io.crashbox.ci
+package yaml
+
+import java.util.{List => JList, Map => JMap}
+
+import scala.collection.JavaConverters._
+
+import org.yaml.snakeyaml.{DumperOptions, Yaml => SYaml}
+import org.yaml.snakeyaml.constructor.Constructor
+import org.yaml.snakeyaml.representer.Representer
+import org.yaml.snakeyaml.resolver.Resolver
+
+object Yaml {
+
+  private def toYaml(yml: Any): YamlValue = yml match {
+    case m: JMap[_, _] =>
+      YamlMap(m.asScala.toMap.map { case (k, v) => k.toString -> toYaml(v) })
+    case l: JList[_] => YamlSeq(l.asScala.toList.map(toYaml(_)))
+    case s: String => YamlString(s)
+    case other => throw new YamlFormatException("Unknown YAML type: " + other)
+  }
+
+  /** Strict parsing */
+  def parse(data: String): YamlValue = {
+    val resolver = new Resolver {
+      override def addImplicitResolvers: Unit = {}
+    }
+    val yml = new SYaml(new Constructor(),
+                        new Representer(),
+                        new DumperOptions(),
+                        resolver)
+    val node = yml.load(data)
+    toYaml(node)
+  }
+
+}