add tests for cross-cbt-version exit code and err/out directing

also adds example for propagating build-time information into run time

4 files changed, 47 insertions, 0 deletions

diff --git a/examples/build-info-example/BuildInfo.scala b/examples/build-info-example/BuildInfo.scala
new file mode 100644
index 0000000..ac0e680
--- /dev/null
+++ b/examples/build-info-example/BuildInfo.scala
@@ -0,0 +1,8 @@
+// generated file
+import java.io._
+object BuildInfo{
+def artifactId   = "build-info-example"
+def groupId      = "cbt.examples"
+def version      = "0.1"
+def scalaVersion = "2.11.8"
+}
diff --git a/examples/build-info-example/Main.scala b/examples/build-info-example/Main.scala
new file mode 100644
index 0000000..cb4ad75
--- /dev/null
+++ b/examples/build-info-example/Main.scala
@@ -0,0 +1,9 @@
+object Main{
+  def main(args: Array[String]): Unit = {
+    import BuildInfo._
+    println("scalaVersion: "+scalaVersion)
+    println("groupId: "+groupId)
+    println("artifactId: "+artifactId)
+    println("version: "+version)
+  }
+}
\ No newline at end of file
diff --git a/examples/build-info-example/Readme.md b/examples/build-info-example/Readme.md
new file mode 100644
index 0000000..acbb84e
--- /dev/null
+++ b/examples/build-info-example/Readme.md
@@ -0,0 +1,3 @@
+This is an example how to propagate build-time information
+such as version or scalaVersion to runtime.
+The advantage of the approach taken here is simplicity.
diff --git a/examples/build-info-example/build/build.scala b/examples/build-info-example/build/build.scala
new file mode 100644
index 0000000..f6fc7a4
--- /dev/null
+++ b/examples/build-info-example/build/build.scala
@@ -0,0 +1,27 @@
+import cbt._
+import java.nio.file.Files._
+
+class Build(val context: Context) extends PackageJars{
+  def name = "build-info-example"
+  def groupId = "cbt.examples"
+  def defaultVersion = "0.1"
+  override def defaultScalaVersion = "2.11.8"
+  override def compile = {
+    val file = (projectDirectory ++ "/BuildInfo.scala").toPath
+    val contents = s"""// generated file
+import java.io._
+object BuildInfo{
+def artifactId   = "$artifactId"
+def groupId      = "$groupId"
+def version      = "$version"
+def scalaVersion = "$scalaVersion"
+}
+"""
+    if( exists(file) && contents != new String(readAllBytes(file)) )
+      write(
+        (projectDirectory ++ "/BuildInfo.scala").toPath,
+        contents.getBytes
+      )
+    super.compile
+  }
+}