Move partest to https://github.com/scala/scala-partest

As partest is now resolved from maven, `test/partest` uses `ant test.suite.init`
to determine the classpath (serialized to build/pack/partest.properties)
that's necessary to run `scala.tools.partest.nest.ConsoleRunner`.

Thus, partest gets exactly the same classpath, whether run from
the command line through `test/partest` or via `ant test`.

The version of partest we're using is specified by
properties defined in versions.properties (formerly `starr.number`).

Currently, we're using:

```
scala.binary.version=2.11.0-M4
partest.version.number=1.0-RC3
```

NOTES:
  - The version of Scala being tested must be backwards binary compatible with
    the version of Scala that was used to compile partest.
  - Once 2.11 goes final, `scala.binary.version=2.11`, and `starr.version=2.11.0`.
  - Need scalacheck on classpath for test/partest scalacheck tests.
  - Removed atrophied ant tests (haven't been run/changed for at least two years
    I checked 81d659141a as a "random" sample).
  - Removed scalacheck. It's resolved as a partest dependency.
  - For now, use a locally built scalap
  - Kept the trace macro in the main repo (partest-extras)
  - New targets for faster pr validation: test-core-opt, test-stab-opt
  - Reused partest eclipse/intellij project to partest-extras
    (note: the partest dependency is hard-coded)

1 files changed, 34 insertions, 23 deletions

diff --git a/test/partest b/test/partest
index 8d94facba3..f396459c6d 100755
--- a/test/partest
+++ b/test/partest
@@ -46,29 +46,40 @@ if $cygwin; then
     SCALA_HOME=`cygpath --unix "$SCALA_HOME"`
 fi
 
-# Constructing the extension classpath
-EXT_CLASSPATH=""
-if [ -z "$EXT_CLASSPATH" ] ; then
-    if [ -f "$SCALA_HOME/lib/scala-partest.jar" ] ; then
-        for ext in "$SCALA_HOME"/lib/* ; do
-            if [ -z "$EXT_CLASSPATH" ] ; then
-                EXT_CLASSPATH="$ext"
-            else
-                EXT_CLASSPATH="$EXT_CLASSPATH:$ext"
-            fi
-        done
-    elif [ -f "$SCALA_HOME/build/pack/lib/scala-partest.jar" ] ; then
-        for lib in `echo "scala-partest scala-library scala-parser-combinators scala-xml scala-reflect scala-compiler diffutils"`; do
-            ext="$SCALA_HOME/build/pack/lib/$lib.jar"
-            if [ -z "$EXT_CLASSPATH" ] ; then
-                EXT_CLASSPATH="$ext"
-            else
-                EXT_CLASSPATH="$EXT_CLASSPATH:$ext"
-            fi
-        done
+# Let ant construct the classpath used to run partest (downloading partest from maven if necessary)
+# PARTEST_CLASSPATH=""
+if [ -z "$PARTEST_CLASSPATH" ] ; then
+    if [ ! -f "$SCALA_HOME/build/pack/partest.properties" ] ; then
+        (cd "$SCALA_HOME" && ant -q test.suite.init) # builds pack, downloads partest and writes classpath to build/pack/partest.properties
     fi
+
+    PARTEST_CLASSPATH=$( cat "$SCALA_HOME/build/pack/partest.properties" | grep partest.classpath | sed -e 's/\\:/:/g' | cut -f2- -d= )
+
+    # sanity check, disabled to save time
+    # $( javap -classpath $PARTEST_CLASSPATH scala.tools.partest.nest.NestRunner &> /dev/null ) || unset PARTEST_CLASSPATH
 fi
 
+# if [ -z "$PARTEST_CLASSPATH" ] ; then
+#     if [ -f "$SCALA_HOME/lib/scala-partest.jar" ] ; then
+#         for ext in "$SCALA_HOME"/lib/* ; do
+#             if [ -z "$PARTEST_CLASSPATH" ] ; then
+#                 PARTEST_CLASSPATH="$ext"
+#             else
+#                 PARTEST_CLASSPATH="$PARTEST_CLASSPATH:$ext"
+#             fi
+#         done
+#     elif [ -f "$SCALA_HOME/build/pack/lib/scala-partest.jar" ] ; then
+#         for lib in `echo "scala-partest scala-library scala-parser-combinators scala-xml scala-reflect scala-compiler diffutils"`; do
+#             ext="$SCALA_HOME/build/pack/lib/$lib.jar"
+#             if [ -z "$PARTEST_CLASSPATH" ] ; then
+#                 PARTEST_CLASSPATH="$ext"
+#             else
+#                 PARTEST_CLASSPATH="$PARTEST_CLASSPATH:$ext"
+#             fi
+#         done
+#     fi
+# fi
+
 # Locate a javac command
 # Try: JAVA_HOME, sibling to specific JAVACMD, or PATH
 # Don't fail if there is no javac, since not all tests require it.
@@ -101,7 +112,7 @@ if $cygwin; then
         JAVAC_CMD=`cygpath --$format "$JAVAC_CMD"`
     fi
     SCALA_HOME=`cygpath --$format "$SCALA_HOME"`
-    EXT_CLASSPATH=`cygpath --path --$format "$EXT_CLASSPATH"`
+    PARTEST_CLASSPATH=`cygpath --path --$format "$PARTEST_CLASSPATH"`
 fi
 
 # last arg wins, so if JAVA_OPTS already contains -Xmx or -Xms the
@@ -123,7 +134,7 @@ fi
 # be quoted: otherwise an empty string will appear as a command line
 # argument, and java will think that is the program to run.
 "${JAVACMD:=java}" \
-  $JAVA_OPTS -cp "$EXT_CLASSPATH" \
+  $JAVA_OPTS -cp "$PARTEST_CLASSPATH" \
   ${partestDebugStr} \
   ${color_opts} \
   -Dfile.encoding=UTF-8 \
@@ -132,4 +143,4 @@ fi
   -Dpartest.java_opts="${JAVA_OPTS}" \
   -Dpartest.scalac_opts="${SCALAC_OPTS}" \
   -Dpartest.javac_cmd="${JAVAC_CMD}" \
-  scala.tools.partest.nest.NestRunner "$@"
+  scala.tools.partest.nest.ConsoleRunner "$@"