A simple script to collect slurp dumps for loadtest, (#1473)

* A simple script to collect slurp dumps for loadtest,
with help of PhantomJs

devel/loadtest_collect/loadtest_collect.conf

@@ -0,0 +1,33 @@
+ModPagespeedFileCachePath            "#HOME/apache2/pagespeed_cache/"
+AddOutputFilterByType MOD_PAGESPEED_OUTPUT_FILTER text/html
+
+<VirtualHost localhost:8080>
+    ModPagespeed on
+
+    <Location /pagespeed_admin>
+        Order allow,deny
+        Allow from localhost
+        Allow from 127.0.0.1
+        SetHandler pagespeed_admin
+    </Location>
+    <Location /pagespeed_global_admin>
+        Order allow,deny
+        Allow from localhost
+        Allow from 127.0.0.1
+        SetHandler pagespeed_global_admin
+    </Location>
+
+    KeepAlive On
+    KeepAliveTimeout 60
+
+    <Directory "#HOME/apache2/htdocs/" >
+        # This is enabled to make sure we don't crash mod_negotiation.
+        Options +MultiViews
+    </Directory>
+
+    ModPagespeedRewriteLevel AllFilters
+    ModPagespeedSlurpDirectory #SLURP_DIR
+    ModPagespeedSlurpReadOnly off
+    ModPagespeedRewriteDeadlinePerFlushMs -1
+    CustomLog "#LOG_PATH" %r
+</VirtualHost>

devel/loadtest_collect/loadtest_collect_corpus.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+#
+# Copyright 2017 Google Inc.
+#
+# Licensed 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.
+#
+# This script collects slurps and URLs (post-optimization, if possible), of
+# some websites with the help of phantomjs.
+
+function usage {
+  echo "Usage: loadtest_collect/loadtest_collect_corpus.sh pages.txt out.tar.bz2"
+  echo "Where pages.txt has a URL (including http://) per line"
+}
+
+set -u  # exit the script if any variable is uninitialized
+set -e
+
+if [ $# -ne 2 ]; then
+  usage
+  exit 1
+fi
+
+if [ -d devel ]; then
+  cd devel
+fi
+if [ ! -d loadtest_collect ]; then
+  echo Run this script from the top or devel/ directories
+  exit 1
+fi
+
+if [ ! $(which phantomjs) ]; then
+  echo "phantomjs not found, trying to install it with apt-get"
+  sudo apt-get install phantomjs
+fi
+
+SLURP_TOP_DIR=$(mktemp -d)
+SLURP_DIR=$SLURP_TOP_DIR/slurp
+mkdir $SLURP_DIR
+LOG_PATH=$SLURP_TOP_DIR/log.txt
+URLS_PATH=$SLURP_TOP_DIR/corpus_all_urls.txt
+
+make clean_slate_for_tests
+make apache_debug_stop
+
+sed -e "s^#HOME^$HOME^" -e "s^#SLURP_DIR^$SLURP_DIR^" \
+  -e "s^#LOG_PATH^$LOG_PATH^" \
+  < loadtest_collect/loadtest_collect.conf > ~/apache2/conf/pagespeed.conf
+make -j8 apache_debug_restart
+
+for site in $(cat $1); do
+  echo $site
+  phantomjs --proxy=127.0.0.1:8080 loadtest_collect/script.js $site
+done
+cat $LOG_PATH | grep ^GET | cut -d ' ' -f 2 > $URLS_PATH
+cd $SLURP_TOP_DIR
+tar cvjf $2 .
+

devel/loadtest_collect/script.js

@@ -0,0 +1,12 @@
+// This is basically just the stripped down http://phantomjs.org/quick-start.html
+// example.
+var page = require('webpage').create();
+var system = require('system');
+if (system.args.length === 1) {
+  console.log('Usage: script.js <some URL>');
+  phantom.exit();
+}
+
+page.open(system.args[1], function(status) {
+  phantom.exit();
+});