1 files changed, 115 insertions, 0 deletions
diff --git a/project/Sigar.scala b/project/Sigar.scala
new file mode 100644
index 00000000..621938c2
--- /dev/null
+++ b/project/Sigar.scala
@@ -0,0 +1,115 @@
+/* =========================================================================================
+ * Copyright © 2013-2014 the kamon project <http://kamon.io/>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific language governing permissions
+ * and limitations under the License.
+ * =========================================================================================
+ */
+
+import sbt._
+import Keys._
+
+/** Sigar build specific settings. */
+object Sigar {
+  import UnzipTask._
+  import sbt.Package._
+  import Dependencies._
+
+  /** Helper settings for extracted sigar sources. */
+  lazy val sigarSources = SettingKey[File]("sigar-sources", "Location of extracted sigar sources.")
+
+  /** Native o/s libraries folder inside kamon-sigar.jar. Hardcoded in [SigarAgent.java]. */
+  lazy val nativeFolder = "native"
+
+  /** Full class name of the sigar load time agent. Provides Agent-Class and Premain-Class contracts. */
+  lazy val agentClass = "kamon.sigar.SigarAgent"
+
+  /** A name filter which matches java source files. */
+  lazy val sourceFilter: NameFilter = new PatternFilter(
+    java.util.regex.Pattern.compile("""(.+\.java)""")
+  )
+
+  /** A name filter which matches java class files. */
+  lazy val classFilter: NameFilter = new PatternFilter(
+    java.util.regex.Pattern.compile("""(.+\.class)""")
+  )
+
+  /** A name filter which matches native o/s libraries. */
+  lazy val nativeFilter: NameFilter = new PatternFilter(
+    java.util.regex.Pattern.compile("""(.+\.dll)|(.+\.dylib)|(.+\.lib)|(.+\.sl)|(.+\.so)""")
+  )
+
+  /** Location of latest sigar artifacts. */
+  lazy val redhatResolver = "RedHat/JBoss Repository" at "http://repository.jboss.org/nexus/content/groups/public-jboss"
+
+  /** Sigar build specific settings. */
+  lazy val settings = Seq(
+
+    /** Pure java build.*/
+    autoScalaLibrary := false,
+
+    /** Use RedHat artifacts. */
+    resolvers += redhatResolver,
+
+    /** Ensure no transitive dependency. */
+    libraryDependencies ++=
+      provided(sigarJar, sigarZip) ++
+      test(junit, junitInterface, slf4Api, logback),
+
+    /** Location of sigar source extraction. */
+    sigarSources := target.value / "sigar-sources",
+
+    /** Origianl sigar resources extraction and relocation. */
+    unzipTask := {
+      val log = streams.value.log
+      val report = update.value
+
+      log.debug(s"Unpack SRC: ${sigarJar}")
+      val srcTarget = sigarSources.value
+      val srcArtifact = locateArtifact(report, sigarJar, "sources")
+      val srcFileList = extractArtifact(srcArtifact, srcTarget, sourceFilter, false)
+
+      log.debug(s"Unpack JAR: ${sigarJar}")
+      val jarTarget = (classDirectory in Compile).value
+      val jarArtifact = locateArtifact(report, sigarJar)
+      val jarFileList = extractArtifact(jarArtifact, jarTarget, classFilter, false)
+
+      log.debug(s"Unpack ZIP ${sigarZip}")
+      val zipTarget = jarTarget / nativeFolder
+      val zipArtifact = locateArtifact(report, sigarZip)
+      val zipFileList = extractArtifact(zipArtifact, zipTarget, nativeFilter, true)
+    },
+
+    /** Unpack sigar resources before compile. */
+    (Keys.compile in Compile) <<= (Keys.compile in Compile) dependsOn unzipTask,
+
+    /** Include original sigar sources as our own. */
+    (packageSrc in Compile) <<= (packageSrc in Compile) dependsOn unzipTask,
+    (mappings in (Compile, packageSrc)) ++= {
+      val base = sigarSources.value
+      val finder = base ** sourceFilter
+      val pairList = finder x relativeTo(base)
+      pairList
+    },
+
+    /** Invoke verbose tesing in separate JVM. */
+    testOptions += Tests.Argument(TestFrameworks.JUnit, "-v", "-a"),
+    fork in Test := true,
+
+    /** Ensure JVM agent packaging. */
+    packageOptions in (Compile, packageBin) ++= Seq(
+      ManifestAttributes("Agent-Class" -> agentClass),
+      ManifestAttributes("Premain-Class" -> agentClass),
+      ManifestAttributes("Kamon-Sigar-Version" -> sigarVersion)
+    )
+
+  )
+
+}