[PATCHv5] Script to generate perf man tarball.

[Miguel Flores Silverio <floresmigu3l@xxxxxxxxx>]

By default the scritp uses the kernel version of the upstream tree
set in LINUX_GIT. In the given case the the upstream tree and the
current tree do not have the same version use the --version=x.y

Signed-off-by: Miguel Flores Silverio <floresmigu3l@xxxxxxxxx>
---
* PATCHv1
  - use LINUX_GIT
* PATCHv2
  - Fix: quotes around $LINUX
  - moves to scripts directory
* PATCHv3
  - Add prompt to specify kernel version and patchlevel.
* PATCHv4
  - Use flag --version=x.y instead of prompt
  - Remove debuggin comments
* PATCHv5
  - Fix: missing usage
  
 scripts/generate-perf-man.sh | 54 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100755 scripts/generate-perf-man.sh

diff --git a/scripts/generate-perf-man.sh b/scripts/generate-perf-man.sh
new file mode 100755
index 0000000..f60743a
--- /dev/null
+++ b/scripts/generate-perf-man.sh
@@ -0,1 +1,54 @@
+#! /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
--
2.7.4
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