From 3e90312b3f2d912bf27e91b454a6ef21a81a2fc5 Mon Sep 17 00:00:00 2001
From: Jakob Odersky <jodersky@gmail.com>
Date: Fri, 4 Dec 2015 20:50:53 -0800
Subject: initial commit

---
 .../main/scala/ch/jodersky/sbt/jni/Defaults.scala  | 192 +++++++++++++++++++++
 1 file changed, 192 insertions(+)
 create mode 100644 jni-plugin/src/main/scala/ch/jodersky/sbt/jni/Defaults.scala

(limited to 'jni-plugin/src/main/scala/ch/jodersky/sbt/jni/Defaults.scala')

diff --git a/jni-plugin/src/main/scala/ch/jodersky/sbt/jni/Defaults.scala b/jni-plugin/src/main/scala/ch/jodersky/sbt/jni/Defaults.scala
new file mode 100644
index 0000000..49f4a49
--- /dev/null
+++ b/jni-plugin/src/main/scala/ch/jodersky/sbt/jni/Defaults.scala
@@ -0,0 +1,192 @@
+package ch.jodersky.sbt.jni
+
+import sbt._
+import sbt.Keys._
+import Keys._
+
+import build.CMake
+import build.BuildTool
+
+import ch.jodersky.jni.Platform
+import ch.jodersky.jni.NativeLoader
+
+object Defaults {
+
+  lazy val buildSettings: Seq[Setting[_]] = Seq(
+
+    baseDirectory in jni := (baseDirectory in ThisBuild).value / "native",
+
+    target in jni := target.value / "native" / (jniPlatform in jni).value.id,
+
+    jniPlatform in jni := Platform.current.getOrElse{
+      sLog.value.warn("Warning: cannot determine platform! It will be set to 'unknown'.")
+      Platform.Unknown
+    },
+
+    jniBuildTool in jni := {
+      val tools = Seq(CMake)
+
+      val base = (baseDirectory in jni).value
+
+      val tool = if (base.exists && base.isDirectory) {
+        tools.find(t => t detect base)
+      } else {
+        None
+      }
+      tool.getOrElse(
+        sys.error("No supported native build tool detected. " +
+          s"Check that the setting 'baseDirectory in jni' (currently $base) " +
+          "points to a valid directory. Supported build tools are: " +
+          tools.map(_.name).mkString(",")
+        )
+      )
+    },
+
+    clean := {
+      val log = streams.value.log
+      val tool = try {
+        Some((jniBuildTool in jni).value)
+      } catch {
+        case _: Exception => None
+      }
+      tool foreach { t =>
+        log.debug("Cleaning native build")
+        t.api.clean(
+          (baseDirectory in jni).value,
+          log
+        )
+      }
+      clean.value
+    },
+
+    jni := {
+      val tool = (jniBuildTool in jni).value
+      val dir = (baseDirectory in jni).value
+      val targetDir = (target in jni).value / "lib"
+      val log = streams.value.log
+
+      tool.api.library(dir, targetDir, log)
+    },
+
+    javahClasses in javah := Seq(),
+
+    javahObjects in javah := Seq(),
+
+    target in javah := (baseDirectory in jni).value,
+
+    fullClasspath in javah := (fullClasspath in Compile).value,
+
+    javah := {
+      val out = (target in javah).value
+      val jcp: Seq[File] = (fullClasspath in javah).value.map(_.data)
+      val cp = jcp.mkString(sys.props("path.separator"))
+
+      val classes = (javahClasses in javah).value ++
+        (javahObjects in javah).value.map(_ + "$")
+
+      for (clazz <- classes) {
+        val parts = Seq(
+          "javah",
+          "-d", out.getAbsolutePath,
+          "-classpath", cp,
+          clazz)
+        val cmd = parts.mkString(" ")
+        val ev = Process(cmd) ! streams.value.log
+        if (ev != 0) sys.error(s"Error occured running javah. Exit code: ${ev}")
+      }
+
+      out
+    }
+
+  )
+
+  lazy val bundleSettings: Seq[Setting[_]] = Seq(
+
+    jniLibraryPath in jni := {
+      "/" + (organization.value + "." + name.value).replaceAll("\\.|-", "/")
+    },
+
+    unmanagedResourceDirectories in jni := Seq(
+      (baseDirectory).value / "lib_native"
+    ),
+
+    unmanagedClasspath ++= (unmanagedResourceDirectories in jni).value.map{ file =>
+      Attributed.blank(file)
+    },
+
+    resourceManaged in jni := (target in jni).value / "lib_managed",
+
+    managedResourceDirectories in jni := Seq(
+      (resourceManaged in jni).value
+    ),
+
+    managedClasspath ++= {
+
+      //build native library
+      val library = jni.value
+
+      //native library as a managed resource file
+      val libraryResource = (resourceManaged in jni).value /
+        NativeLoader.fullLibraryPath(
+          (jniLibraryPath in jni).value,
+          (jniPlatform in jni).value
+        )
+
+      //copy native library to a managed resource (so it can also be loaded when not packages as a jar)
+      IO.copyFile(library, libraryResource)
+
+      Seq(Attributed.blank((resourceManaged in jni).value))
+    },
+
+    packageJni in Global := {
+
+      val unmanagedMappings: Seq[(File, String)] = (unmanagedResourceDirectories in jni).value flatMap { dir =>
+        val files = (dir **  "*").filter(_.isFile).get
+        files map { file =>
+          println(file.getAbsolutePath)
+          file -> (file relativeTo dir).get.getPath
+        }
+      }
+
+      managedClasspath.value //call this to generate files in resourceManaged
+
+      val managedMappings: Seq[(File, String)] = (managedResourceDirectories in jni).value flatMap { dir =>
+        val files = (dir **  "*").filter(_.isFile).get
+        files map { file =>
+          println(file.getAbsolutePath)
+          file -> (file relativeTo dir).get.getPath
+        }
+      }
+
+      val out = target.value / (name.value + "-native.jar")
+
+      val manifest = new java.util.jar.Manifest
+      Package.makeJar(
+        unmanagedMappings ++ managedMappings,
+        out,
+        manifest,
+        streams.value.log
+      )
+      out
+    }
+
+  )
+
+  lazy val clientSettings: Seq[Setting[_]] = Seq(
+    libraryDependencies += "ch.jodersky" %% "jni-library" % "0.1-SNAPSHOT",
+    fork in run := true,
+    artifact in jni := {
+      Artifact(
+        name = name.value,
+        `type` = "jar",
+        extension = "jar",
+        classifier = Some("native"),
+        configurations = Seq(Runtime),
+        url = None
+      ) extra (
+        "platform" -> "all"
+      )
+    }
+  ) ++ addArtifact(artifact in jni, packageJni)
+
+}
-- 
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