build-sys: add ko-release-gen script

The script creates directory kernel.org/v<version>/, copy .xz tarball,
changelog, release notes and docs to the directory and sign all files by
gpg.

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/tools/ko-release-gen b/tools/ko-release-gen
new file mode 100755 (executable)
index 0000000..46d140f
--- /dev/null
+++ b/tools/ko-release-gen
@@ -0,0 +1,76 @@
+#!/bin/sh
+#
+# Copyright (C) 2012 Karel Zak <kzak@redhat.com>
+#
+# Usage: ko-release-gen [<directory>]
+#
+# This script prepares a new release for publishing on kernel.org. The
+# hierarchy of release files is created in the <directory> (default directory
+# is "kernel.org"). Use case:
+#
+#  make distcheck
+#  make changelog
+#  tools/ko-release-gen
+#  tools/ko-release-push
+#
+
+cd "$(git rev-parse --show-toplevel)" || {
+  echo "error: failed to chdir to git root"
+  exit 1
+}
+
+[ -f ".version" ] || \
+       echo "error: cannot found version file (call make distcheck)"
+
+VERSION=$(cat .version)
+VERSION_MAJOR=$(echo $VERSION | sed 's/-rc[0-9]//')
+DISTDIR=${1:-"kernel.org"}/v${VERSION_MAJOR}
+
+GPG_CMD="gpg --use-agent --armor --detach-sign --quiet --batch"
+
+function die {
+       echo $1
+       exit 1
+}
+
+function add_file {
+       local src="$1"
+       local name=$(basename $1)
+       local subdir=$DISTDIR/${2:-""}
+
+       mkdir -p $subdir
+       cp $src $subdir || die "$src: copy failed"
+
+       [ -f $subdir/$name ] || die "$name not found"
+       echo -n " $subdir/$name ..."
+
+       case "$name" in
+       *.tar.xz)
+               local sig=$(echo "$name" | sed 's/\.tar\.xz/.tar.sign/')
+               xz -d -c $subdir/$name | $GPG_CMD --output $subdir/$sig
+               ;;
+       *)
+               local sig="${name}.sign"
+               cat $subdir/$name | $GPG_CMD --output $subdir/$sig
+               ;;
+       esac
+       echo " OK "
+}
+
+function add_html_dir {
+       local src="$1"          # source dir
+       local tgt="$2"          # target dir
+       
+       for fl in $(ls $src/*.{html,css,png}); do
+               add_file $fl $tgt
+       done
+}
+
+rm -rf $DISTDIR
+
+add_file       util-linux-${VERSION}.tar.xz
+add_file       v${VERSION}-ChangeLog
+add_file       Documentation/releases/v${VERSION_MAJOR}-ReleaseNotes
+add_html_dir   libmount/docs/html libmount-docs
+add_html_dir   libblkid/docs/html libblkid-docs
+