From 2c3db4e1ed46059736440e494fe400dcb2f50e9f Mon Sep 17 00:00:00 2001
From: Christopher Vogt <oss.nsp@cvogt.org>
Date: Thu, 22 Jun 2017 00:19:08 -0400
Subject: add basic support for maven version ranges

---
 stage1/resolver.scala         | 15 ++++++++++++++-
 test/simple/build/build.scala | 15 ++++++++-------
 test/test.scala               | 29 +++++++++++++++++++++++++++++
 3 files changed, 51 insertions(+), 8 deletions(-)

diff --git a/stage1/resolver.scala b/stage1/resolver.scala
index 13d4070..0da8f6f 100644
--- a/stage1/resolver.scala
+++ b/stage1/resolver.scala
@@ -268,7 +268,10 @@ case class BoundMavenDependency(
     classpath.strings.map(new File(_).lastModified).max
   }
 
-  private lazy val base = "/" + groupId.split("\\.").mkString("/") + "/" + artifactId + "/" + version + "/" + artifactId + "-" + version
+  private lazy val base = {
+    val v = BoundMavenDependency.extractVersion(version)
+    "/" + groupId.split("\\.").mkString("/") + "/" + artifactId + "/" + v + "/" + artifactId + "-" + v
+  }
   protected[cbt] def basePath(useClassifier: Boolean) = // PERFORMANCE HOTSPOT
     base + (if (useClassifier && classifier.name.nonEmpty) "-" + classifier.name.get else "")
 
@@ -421,6 +424,16 @@ case class BoundMavenDependency(
   }
 }
 object BoundMavenDependency{
+  private lazy val versionRangeRegex = "^[\\[\\(]([^,\\]\\)]*)(,([^\\]\\)]*))?[\\]\\)]".r
+  def extractVersion( versionOrRange: String ) = {
+    versionOrRange match {
+      case versionRangeRegex(left,middle,right) if left != null || right != null => {
+        Option(left).filterNot(_ == "") getOrElse right
+      }
+      case version => version
+    }
+  }
+
   val ValidIdentifier = "^([A-Za-z0-9_\\-.]+)$".r // according to maven's DefaultModelValidator.java
   def semanticVersionLessThan(left: Array[Either[Int,String]], right: Array[Either[Int,String]]) = {
     // FIXME: this ignores ends when different size
diff --git a/test/simple/build/build.scala b/test/simple/build/build.scala
index 3465ec3..66bee95 100644
--- a/test/simple/build/build.scala
+++ b/test/simple/build/build.scala
@@ -7,6 +7,9 @@ class Build(val context: cbt.Context) extends BaseBuild{
     // FIXME: make the below less verbose
     Resolver( mavenCentral ).bind(
       ScalaDependency("com.typesafe.play", "play-json", "2.4.4"),
+      ScalaDependency("io.spray","spray-http","1.3.3"),
+      ScalaDependency( "com.lihaoyi", "scalatex-api", "0.3.6" ),
+      ScalaDependency( "com.lihaoyi", "scalatex-site", "0.3.6" ),
       MavenDependency("joda-time", "joda-time", "2.9.2"),
       // the below tests pom inheritance with dependencyManagement and variable substitution for pom properties
       MavenDependency("org.eclipse.jgit", "org.eclipse.jgit", "4.2.0.201601211800-r"),
@@ -16,15 +19,13 @@ class Build(val context: cbt.Context) extends BaseBuild{
       MavenDependency("cc.factorie","factorie_2.11","1.2"),
       // test recursive substitution. see https://github.com/cvogt/cbt/issues/434
       MavenDependency("com.amazonaws", "aws-java-sdk-s3", "1.11.86"),
-      // the dependency below uses a maven version range. Currently not supported.
+      // requires maven version ranges
+      MavenDependency("io.grpc", "grpc-netty", "1.2.0")
+      // the dependency below uses a maven version range with automatic minor version. Currently not supported.
       // TODO: put in a proper error message for version range not supported
-      //MavenDependency("com.github.nikita-volkov", "sext", "0.2.4")
+      // MavenDependency("com.github.nikita-volkov", "sext", "0.2.4")
       // currently breaks with can't find https://repo1.maven.org/maven2/org/apache/avro/avro-mapred/1.7.7/avro-mapred-1.7.7-hadoop2.pom.sha1
-      // org.apache.spark:spark-sql_2.11:1.6.1
-      // currently fails, let's see if because of a bug
-      // io.spray:spray-http:1.3.3
-      ScalaDependency( "com.lihaoyi", "scalatex-api", "0.3.6" ),
-      ScalaDependency( "com.lihaoyi", "scalatex-site", "0.3.6" )
+      // ScalaDependency("org.apache.spark","spark-sql_2.11","1.6.1")
     ) ++
     Resolver( mavenCentral, sonatypeReleases ).bind(
       "org.scalameta" %% "scalameta" % "1.1.0"
diff --git a/test/test.scala b/test/test.scala
index 55ce205..9cb7fd9 100644
--- a/test/test.scala
+++ b/test/test.scala
@@ -242,6 +242,35 @@ object Main{
 
     ScaffoldTest.main(Array())
 
+    Seq(
+      "1.0" -> "1.0",
+      "1.0-M1" -> "1.0-M1",
+      "1.0.0" -> "1.0.0",
+      "[1.0.0]" -> "1.0.0",
+      "[1.0.0)" -> "1.0.0",
+      "(1.0.0]" -> "1.0.0",
+      "(1.0.0)" -> "1.0.0",
+      "(,1.0.0]" -> "1.0.0",
+      "[,1.0.0]" -> "1.0.0",
+      "[,1.0.0)" -> "1.0.0",
+      "(,1.0.0)" -> "1.0.0",
+      "(1.0.0,]" -> "1.0.0",
+      "[1.0.0,]" -> "1.0.0",
+      "[1.0.0,)" -> "1.0.0",
+      "(1.0.0,)" -> "1.0.0",
+      "(1.0.0,1.0.1]" -> "1.0.0",
+      "[1.0.0,1.0.1]" -> "1.0.0",
+      "[1.0.0,1.0.1)" -> "1.0.0",
+      "(1.0.0,1.0.1)" -> "1.0.0"
+    ).foreach{
+      case (input, expected) =>
+      val actual = BoundMavenDependency.extractVersion(input)
+        assert(
+          expected === actual,
+          s"for $input expected $expected got $actual"
+        )
+    }
+
     usage("nothing")
     compile("nothing")
     //clean("nothing")
-- 
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