dotc: Get versions of all dependencies from Build.scala

Author: DarkDimius

bin/dotc

@@ -2,13 +2,27 @@
 # This script is used for running compiler standalone(outside of sbt)
 # it's based on miniboxing script and paulp's launcher script
 
+# Try to autodetect real location of the script
+DOTTY_ROOT="`readlink \"$0\"`"             #  relative, symbolic links resolved
+if [[ "$DOTTY_ROOT" == "" ]]; then
+  DOTTY_ROOT="$0"
+fi
+DOTTY_ROOT="`dirname \"$DOTTY_ROOT\"`"
+DOTTY_ROOT="`( cd \"$DOTTY_ROOT\" && pwd )`/.."  # absolute
+
+# Finds in dotty build file a line containing PATTERN
+# returns last "" escaped string in this line
+function getLastStringOnLineWith {
+  PATTERN="$1"
+  grep "$PATTERN" "$DOTTY_ROOT/project/Build.scala"|sed -n 's/.*\"\(.*\)\".*/\1/'p
+}
 
 # Configuration
-SCALA_VERSION=2.11.5
+SCALA_VERSION=$(getLastStringOnLineWith "scalaVersion in")
 SCALA_BINARY_VERSION=2.11
-SCALA_COMPILER_VERSION=2.11.5-20150416-144435-09c4a520e1
-DOTTY_VERSION=0.1
-JLINE_VERSION=2.12
+SCALA_COMPILER_VERSION=$(getLastStringOnLineWith "scala-compiler")
+DOTTY_VERSION=$(getLastStringOnLineWith "version in")
+JLINE_VERSION=$(getLastStringOnLineWith "jline")
 bootcp=true
 default_java_opts="-Xmx768m -Xms768m"
 programName=$(basename "$0")
@@ -25,16 +39,10 @@ CompilerMain=dotty.tools.dotc.Main
 ReplMain=test.DottyRepl
 
 
-# Try to autodetect real location of the script
-DOTTY_ROOT="`readlink \"$0\"`"             #  relative, symbolic links resolved
-if [[ "$DOTTY_ROOT" == "" ]]; then
-  DOTTY_ROOT="$0"
-fi
-DOTTY_ROOT="`dirname \"$DOTTY_ROOT\"`"
-DOTTY_ROOT="`( cd \"$DOTTY_ROOT\" && pwd )`/.."  # absolute
+
 # autodetecting the compiler jar. this is location where sbt 'packages' it
-MAIN_JAR=$DOTTY_ROOT/target/scala-$SCALA_BINARY_VERSION/dotty_$SCALA_BINARY_VERSION-$DOTTY_VERSION-SNAPSHOT.jar
-TEST_JAR=$DOTTY_ROOT/target/scala-$SCALA_BINARY_VERSION/dotty_$SCALA_BINARY_VERSION-$DOTTY_VERSION-SNAPSHOT-tests.jar
+MAIN_JAR=$DOTTY_ROOT/target/scala-$SCALA_BINARY_VERSION/dotty_$SCALA_BINARY_VERSION-$DOTTY_VERSION.jar
+TEST_JAR=$DOTTY_ROOT/target/scala-$SCALA_BINARY_VERSION/dotty_$SCALA_BINARY_VERSION-$DOTTY_VERSION-tests.jar
 function checkjar {
   if [ ! -f "$1" ]
   then