HVM-251 would like a tool to graph number of XXXs in native KVM over time

1 files changed, 116 insertions, 0 deletions

diff --git a/tools/kvm-xxx b/tools/kvm-xxx
new file mode 100755
index 0000000..74d5a0f
--- /dev/null
+++ b/tools/kvm-xxx
@@ -0,0 +1,116 @@
+#!/bin/bash
+
+cmd=kvm-xxx
+
+function fatal
+{
+	echo "$cmd: $*" 1>&2 
+	exit 1
+}
+
+function process
+{
+	ifdef=0
+	comments=0
+	err=/tmp/kvm-xxx.$$
+
+	if [[ -n $1 ]]; then
+		since="--since=\"$1 weeks ago\""
+	fi
+
+	for commit in `eval git log --format=%ct:%H $since | sort -n`; do
+		hash=`echo $commit | cut -d: -f2`
+		date=`echo $commit | cut -d: -f1`
+
+		git checkout $hash > /dev/null 2> $err
+
+		if [[ "$?" -ne 0 ]]; then
+			fatal "unable to git checkout $hash: `cat $err`"
+		fi
+
+		files=`git ls-tree $hash | awk '{ print $4 }'`
+
+		ifdef=`grep '#ifdef XXX' $files 2> /dev/null | \
+		    grep -v '#endif' | wc -l`
+		comments=`grep '* XXX' $files 2> /dev/null | \
+		    grep -v '#endif' | wc -l`
+		echo $date $ifdef $comments
+	done
+
+	rm $err 2> /dev/null
+
+	now=`date +%s`
+
+	if [[ $now -eq "s" ]]; then
+		#
+		# Seriously, WTF date(1)?  Can we try to suck less?!
+		#
+		now=`pfexec dtrace -q \
+		    -n BEGIN'{trace(walltimestamp / 1000000000); exit(0)}'`
+
+		if [[ $? -ne 0 ]]; then
+			fatal "couldn't get current Unix time"
+		fi
+	fi
+
+	echo $now $ifdef $comments
+}
+
+gpl=/tmp/kvm-xxx-$$.gpl
+out=/tmp/kvm-xxx-$$.out
+
+cat /dev/null > $out
+
+if [[ ! -d .git ]]; then
+	fatal "must be in the root directory of the repo"
+fi
+
+if ! git checkout master > /dev/null 2>&1 ; then
+	fatal "could not checkout master"
+fi
+
+echo "$cmd: processing all-time data..."
+process > $out-all
+echo "$cmd: processing data over last month..."
+process 4 > $out-month
+echo "$cmd: processing data over last week..."
+process 1 > $out-week
+
+git checkout master > /dev/null 2>&1
+
+cat > $gpl <<EOF
+set term postscript "Helvetica" 12
+set output "kvm-xxx.ps"
+set size 1,1
+set noborder
+
+set timefmt "%s"
+set xdata time
+set format x "%m/%d"
+set yrange [0:]
+set ylabel "Occurences of XXX"
+set xlabel "Date"
+
+set title "Number of XXXs in KVM"
+plot "/tmp/kvm-xxx.out-all" using 1:2 with lines title "#ifdef XXX", \
+    "/tmp/kvm-xxx.out-all" using 1:3 with lines title "Commented XXX"
+ 
+set format x "%m/%d"
+set title "Number of XXXs in KVM over the past month"
+plot "/tmp/kvm-xxx.out-month" using 1:2 with lines title "#ifdef XXX", \
+    "/tmp/kvm-xxx.out-month" using 1:3 with lines title "Commented XXX"
+
+set format x "%m/%d\n%H:%M"
+set title "Number of XXXs in KVM over the past week"
+plot "/tmp/kvm-xxx.out-week" using 1:2 with lines title "#ifdef XXX", \
+    "/tmp/kvm-xxx.out-week" using 1:3 with lines title "Commented XXX"
+
+EOF
+
+if gnuplot $gpl ; then
+	echo "$cmd: done; output is kvm-xxx.ps"
+	rm $gpl $out*
+else
+	echo "can't plot; gnuplot control file is $gpl"
+fi
+