SPARK-1336 Reducing the output of run-tests script.

Author: Prashant Sharma <prashant.s@imaginea.com>
Author: Prashant Sharma <scrapcodes@gmail.com>

Closes #262 from ScrapCodes/SPARK-1336/ReduceVerbosity and squashes the following commits:

87dfa54 [Prashant Sharma] Further reduction in noise and made pyspark tests to fail fast.
811170f [Prashant Sharma] Reducing the ouput of run-tests script.

.gitignore

@@ -47,3 +47,4 @@ spark-*-bin.tar.gz
 unit-tests.log
 /lib/
 rat-results.txt
+scalastyle.txt

dev/run-tests

@@ -39,18 +39,17 @@ JAVA_VERSION=$($java_cmd -version 2>&1 | sed 's/java version "\(.*\)\.\(.*\)\..*
 echo "========================================================================="
 echo "Running Apache RAT checks"
 echo "========================================================================="
-
 dev/check-license
 
 echo "========================================================================="
 echo "Running Scala style checks"
 echo "========================================================================="
-sbt/sbt clean scalastyle
+dev/scalastyle
 
 echo "========================================================================="
 echo "Running Spark unit tests"
 echo "========================================================================="
-sbt/sbt assembly test
+sbt/sbt assembly test | grep -v -e "info.*Resolving" -e "warn.*Merging" -e "info.*Including"
 
 echo "========================================================================="
 echo "Running PySpark tests"
@@ -64,5 +63,5 @@ echo "========================================================================="
 echo "Detecting binary incompatibilites with MiMa"
 echo "========================================================================="
 ./bin/spark-class org.apache.spark.tools.GenerateMIMAIgnore
-sbt/sbt mima-report-binary-issues
+sbt/sbt mima-report-binary-issues | grep -v -e "info.*Resolving" 
 

dev/scalastyle

+#!/usr/bin/env bash
+
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+sbt/sbt clean scalastyle > scalastyle.txt
+ERRORS=$(cat scalastyle.txt | grep -e "error file")
+if test ! -z "$ERRORS"; then
+    echo -e "Scalastyle checks failed at following occurrences:\n$ERRORS"
+    exit 1
+else
+    echo -e "Scalastyle checks passed.\n"
+fi

python/run-tests

@@ -29,8 +29,18 @@ FAILED=0
 rm -f unit-tests.log
 
 function run_test() {
-    SPARK_TESTING=0 $FWDIR/bin/pyspark $1 2>&1 | tee -a unit-tests.log
+    SPARK_TESTING=0 $FWDIR/bin/pyspark $1 2>&1 | tee -a > unit-tests.log
     FAILED=$((PIPESTATUS[0]||$FAILED))
+    
+    # Fail and exit on the first test failure.
+    if [[ $FAILED != 0 ]]; then
+        cat unit-tests.log | grep -v "^[0-9][0-9]*" # filter all lines starting with a number.
+        echo -en "\033[31m"  # Red
+        echo "Had test failures; see logs."
+        echo -en "\033[0m"  # No color
+        exit -1
+    fi
+
 }
 
 run_test "pyspark/rdd.py"
@@ -46,12 +56,7 @@ run_test "pyspark/mllib/clustering.py"
 run_test "pyspark/mllib/recommendation.py"
 run_test "pyspark/mllib/regression.py"
 
-if [[ $FAILED != 0 ]]; then
-    echo -en "\033[31m"  # Red
-    echo "Had test failures; see logs."
-    echo -en "\033[0m"  # No color
-    exit -1
-else
+if [[ $FAILED == 0 ]]; then
     echo -en "\033[32m"  # Green
     echo "Tests passed."
     echo -en "\033[0m"  # No color