Merge pull request #1250 from felixmulder/topic/dotty-runner

Add dotty runner script able to run dotty-compiled class with `main`

Author: DarkDimius

bin/dotc

@@ -3,12 +3,12 @@
 # it's based on miniboxing script and paulp's launcher script
 
 # Try to autodetect real location of the script
-DOTTY_ROOT="`readlink \"$0\"`"             #  relative, symbolic links resolved
+DOTTY_ROOT="$(readlink "$0")"              #  relative, symbolic links resolved
 if [[ "$DOTTY_ROOT" == "" ]]; then
   DOTTY_ROOT="$0"
 fi
-DOTTY_ROOT="`dirname \"$DOTTY_ROOT\"`"
-DOTTY_ROOT="`( cd \"$DOTTY_ROOT\" >& /dev/null && pwd )`/.."  # absolute
+DOTTY_ROOT="$(dirname "$DOTTY_ROOT")"
+DOTTY_ROOT="$( cd "$DOTTY_ROOT" >& /dev/null && pwd )/.."  # absolute
 
 # Finds in dotty build file a line containing PATTERN
 # returns last "" escaped string in this line

bin/dotr

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# 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 "$DOTTY_ROOT" >& /dev/null && pwd )/.."  # absolute
+
+# CLASS_PATH is derived from the DOTTY_ROOT
+CLASS_PATH="-J-Xbootclasspath/a:.:$DOTTY_ROOT/target/scala-2.11/classes/"
+
+function runMain {
+    scala $CLASS_PATH $@
+}
+
+if [ -z "$1" ]; then
+    echo "Starting dotty REPL..."
+    eval "$DOTTY_ROOT/bin/dotc -repl"
+else
+    runMain "$@"
+fi