1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
package ch.jodersky.sbt.jni
package plugins
import sbt._
import sbt.Keys._
import java.io.File
/** Packages libraries built with JniNative. */
object JniPackage extends AutoPlugin {
// JvmPlugin is required or else it will override resource generators when first included
override def requires = JniNative && plugins.JvmPlugin
override def trigger = allRequirements
object autoImport {
val enableNativeCompilation = settingKey[Boolean](
"Determines if native compilation is enabled. If not enabled, only pre-compiled libraries in " +
"`unmanagedNativeDirectories` will be packaged."
)
val unmanagedNativeDirectories = settingKey[Seq[File]](
"Unmanaged directories containing native libraries. The libraries must be regular files " +
"contained in a subdirectory corresponding to a platform. For example " +
"`<unmanagedNativeDirectory>/x86_64-linux/libfoo.so` is an unmanaged library for machines having " +
"the x86_64 architecture and running the Linux kernel."
)
val unmanagedNativeLibraries = taskKey[Seq[(File, String)]](
"Reads `unmanagedNativeDirectories` and maps libraries to their locations on the classpath " +
"(i.e. their path in a fat jar)."
)
val managedNativeLibraries = taskKey[Seq[(File, String)]](
"Maps locally built, platform-dependant libraries to their locations on the classpath."
)
val nativeLibraries = taskKey[Seq[(File, String)]](
"All native libraries, managed and unmanaged."
)
}
import autoImport._
import JniNative.autoImport._
lazy val settings: Seq[Setting[_]] = Seq(
enableNativeCompilation := true,
unmanagedNativeDirectories := Seq(baseDirectory.value / "lib_native"),
unmanagedNativeLibraries := {
val baseDirs: Seq[File] = unmanagedNativeDirectories.value
val mappings: Seq[(File, String)] = unmanagedNativeDirectories.value.flatMap { dir =>
val files: Seq[File] = (dir ** "*").get.filter(_.isFile)
files pair rebase(dir, "/native")
}
mappings
},
managedNativeLibraries := Def.taskDyn[Seq[(File, String)]] {
val enableManaged = (enableNativeCompilation).value
if (enableManaged) Def.task {
val library: File = nativeCompile.value
val platform = nativePlatform.value
Seq(library -> s"/native/$platform/${library.name}")
}
else Def.task {
Seq.empty
}
}.value,
nativeLibraries := unmanagedNativeLibraries.value ++ managedNativeLibraries.value,
resourceGenerators += Def.task {
val libraries: Seq[(File, String)] = nativeLibraries.value
val resources: Seq[File] = for ((file, path) <- libraries) yield {
// native library as a managed resource file
val resource = resourceManaged.value / path
// copy native library to a managed resource, so that it is always available
// on the classpath, even when not packaged as a jar
IO.copyFile(file, resource)
resource
}
resources
}.taskValue
)
override lazy val projectSettings = inConfig(Compile)(settings) ++ inConfig(Test)(settings) ++
Seq(crossPaths := false) // don't add scala version to native jars
}
|
