ffmpeg_build_from_upstream_on_slackware

#!/usr/bin/env bash
#===============================================================================
#
#          FILE: ffmpeg_buid_from_upstream_on_slackware.sh
#
#         USAGE: ./ffmpeg_buid_from_upstream_on_slackware.sh
#
#   DESCRIPTION: This script will build ffmpeg from upstream source
#
#       OPTIONS: ---
#  REQUIREMENTS: rsync x264(this has to be installed beforehand)
#          BUGS: ---
#         NOTES: Shipped package with Slackware might not have all
#        AUTHOR: Bhaskar Chowdhury (https://about.me/unixbhaskar), unixbhaskar@gmail.com
#  ORGANIZATION: Independent
#       CREATED: 08/28/2022 04:17
#      REVISION:  ---
#===============================================================================

set -o nounset                              # Treat unset variables as an error

set -vx
# Get the latest version from upstream
rsync -avz rsync://mirrors.kernel.org/slackware/slackware-current/source/l/ffmpeg .

ffmpegdir="/root/ffmpeg"

cd "$ffmpegdir" || echo "Nope,not get into it ...aborting"

# Extract out the version numeric from the package name
version=$(find . -name "*.xz" -type f -print | sed -e 's#ffmpeg# #' | sed -e 's#tar.xz# #' | sed -e 's#.$# #'  | sed -e 's#^./-# #')

# Change the permission of the package build script,give exec bit
chmod +x ffmpeg.SlackBuild

echo Building it ....

# This directing the build script to use x264 video codecs
sh -c "X264=yes ./ffmpeg.SlackBuild"

# Checking if the build went alright or not and take decision based on it
if [[ $? -eq 0 ]];then
	echo installing the package.

	sh -c "installpkg  /tmp/ffmpeg-$version-x86_64-1.txz"

else
	echo Build is not ok.cross check it...
fi