#!/bin/sh

# Small script to generate the perf-man tarball. The script relies on having

# LINUX_GIT set in your local .bashrc. By default the script will use the

# the kernel version of the upstream tree set in LINUX_GIT. Use --version=x.y

# to set a specific version.

# [Default] eg. ./scritps/generate-perf-man

# eg. ./scripts/generate-perf-man --version=4.8

function usage(){

    echo

    echo "Helps generate the perf-man tarball                              "

    echo "-h, --help                                                       "

    echo

    echo "./generate-perf-man.sh   #Generates using upstream kernel version"

    echo

    echo "./generate-perf-man.sh --version=x.y  #Generate using x.y version"

}

if [ -f ~/.bashrc ]; then

    source ~/.bashrc

fi

if [ ! -d "$LINUX_GIT" ]; then

    echo "Error: \$LINUX_GIT is not set to the upstream git tree."

    exit 1

fi

BASEDIR=$(dirname "$(cd $(dirname $BASH_SOURCE[0]) && pwd)")

pushd "$LINUX_GIT" > /dev/null

KERNEL_VERSION=$( awk '/^VERSION =/ {print $3}' Makefile )

KERNEL_PATCHLEVEL=$( awk '/^PATCHLEVEL =/ {print $3}' Makefile )

if [ ! -z "$@" ]; then

    for opt in "$@"; do

	case $opt in

	    --version=*.*)

		version="${opt#*=}"

		KERNEL_VERSION=$( awk -F. '{print $1}' <<< $version )

		KERNEL_PATCHLEVEL=$( awk -F. '{print $2}' <<< $version )

		;;

	    -h | --help)

		usage

		exit 0

		;;

	    *)

		;;

	esac

    done

fi

cd tools/perf/Documentation/

make

tar -czvf $BASEDIR/perf-man-${KERNEL_VERSION}.${KERNEL_PATCHLEVEL}.tar.gz *.1

make clean

popd