scripts/contrib: introduce build-perf-test-wrapper.sh

A shell script wrapper around oe-build-perf-test script. The purpose of
this wrapper is to act as a executor script, making it possible to run
the tests with a single command. The wrapper script initializes the
build environment, runs oe-build-perf-test and archives the results.

(From OE-Core rev: 946a076c2ce20dd8f7cfa1acbdab1268d406d3e1)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/contrib/build-perf-test-wrapper.sh

@@ -0,0 +1,102 @@
+#!/bin/bash
+#
+# Build performance test script wrapper
+#
+# Copyright (c) 2016, Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+#
+# This script is a simple wrapper around the actual build performance tester
+# script. This script initializes the build environment, runs
+# oe-build-perf-test and archives the results.
+
+script=`basename $0`
+usage () {
+    echo "Usage: $script [COMMITISH]"
+}
+
+if [ $# -gt 1 ]; then
+    usage
+    exit 1
+fi
+commitish=$1
+
+echo "Running on `uname -n`"
+
+if ! git_topdir=$(git rev-parse --show-toplevel); then
+        echo "The current working dir doesn't seem to be a git clone. Please cd there before running `basename $0`"
+        exit 1
+fi
+
+cd "$git_topdir"
+
+if [ -n "$commitish" ]; then
+    # Checkout correct revision
+    echo "Checking out $commitish"
+    git fetch &> /dev/null
+    git checkout HEAD^0 &> /dev/null
+    git branch -D $commitish &> /dev/null
+    if ! git checkout -f $commitish &> /dev/null; then
+        echo "Git checkout failed"
+        exit 1
+    fi
+fi
+
+# Setup build environment
+timestamp=`date "+%Y%m%d%H%M%S"`
+git_rev=$(git rev-parse --short HEAD)  || exit 1
+base_dir="$git_topdir/build-perf-test"
+build_dir="$base_dir/build-$git_rev-$timestamp"
+results_dir="$base_dir/results-$git_rev-$timestamp"
+globalres_log="$base_dir/globalres.log"
+
+mkdir -p "$base_dir"
+source ./oe-init-build-env $build_dir >/dev/null || exit 1
+
+# Additional config
+auto_conf="$build_dir/conf/auto.conf"
+echo 'MACHINE = "qemux86"' > "$auto_conf"
+echo 'BB_NUMBER_THREADS = "8"' >> "$auto_conf"
+echo 'PARALLEL_MAKE = "-j 8"' >> "$auto_conf"
+echo "DL_DIR = \"$base_dir/downloads\"" >> "$auto_conf"
+# Disabling network sanity check slightly reduces the variance of timing results
+echo 'CONNECTIVITY_CHECK_URIS = ""' >> "$auto_conf"
+# Possibility to define extra settings
+if [ -f "$base_dir/auto.conf.extra" ]; then
+    cat "$base_dir/auto.conf.extra" >> "$auto_conf"
+fi
+
+# Run actual test script
+if ! oe-build-perf-test --out-dir "$results_dir" \
+                        --globalres-file "$globalres_log" \
+                        --lock-file "$base_dir/oe-build-perf.lock"; then
+    echo "oe-build-perf-test script failed!"
+    exit 1
+fi
+
+echo -ne "\n\n-----------------\n"
+echo "Global results file:"
+echo -ne "\n"
+
+cat "$globalres_log"
+
+echo -ne "\n\n-----------------\n"
+echo "Archiving results dir..."
+archive_dir=~/perf-results/archives
+mkdir -p "$archive_dir"
+results_basename=`basename "$results_dir"`
+results_dirname=`dirname "$results_dir"`
+tar -czf "$archive_dir/`uname -n`-${results_basename}.tar.gz" -C "$results_dirname" "$results_basename"
+
+rm -rf "$build_dir"
+rm -rf "$results_dir"
+
+echo "DONE"