bash-record.sh

# Add it in your alias
# usage: bash-record final_gif_name speed:optional cast_file:optional
#
# Requires asciinema and docker. 
# Optional to have gifsicle for gif optimization.
#
# Examples:
#  bash-record testing-command-x
#  bash-record slow-recording-x 2
#  bash-record please-faster-x 20 /tmp/slow-recording-x.cast
#  bash-play /tmp/testing-command-x.cast

function bash-record-asciinema(){ # bash-record-asciinema cast_name no_override:optional
	[ -z "$1" ] && echo "Usage: $0 <name>" && return 1
	local cast_file="$1"
	if [ -f $cast_file ] && [ "$2" != "" ];then
		echo "File ${cast_file} already exist!"
		return 215
	fi
	asciinema rec $cast_file -y --overwrite
	grep "." $cast_file| tail -2 | grep exit | grep 1001 &> /dev/null && return 1001 || true
}

function bash-play(){ # bash-play cast_name
	[ -z "$1" ] && echo "Usage: $0 <name>" && return 1
	local cast_file="$1"
	asciinema play --idle-time-limit=1 --speed=${2:-5} $cast_file
}

function bash-record(){ # bash-record final_gif_name speed:optional cast_file:optional
	[ -z "$1" ] && echo "Usage: $0 <name> speed:optional cast_file:optional" && return 1
	local cast_file=${3:-/tmp/$1.cast}
	(bash-record-asciinema $cast_file ${3} || [ $? = 215 ]) || return 1
	time docker run --rm -v $(dirname $cast_file):/tmp -v $PWD:/data asciinema/asciicast2gif \
		-s ${2:-10} \
		-S 1 \
		$cast_file "./$1.gif"
	# https://www.robinstewart.com/blog/2018/10/adding-a-delay-to-the-end-of-an-animated-gif/
	if command -v gifsicle &>/dev/null
	then gifsicle -U $1.gif "#0--2" -d100 "#-1" -O2 > $1-optimised.gif
	fi
}

function bash-record-svg(){ # bash-record final_gif_name speed:optional cast_file:optional
	[ -z "$1" ] && echo "Usage: $0 <name> speed:optional cast_file:optional" && return 1
	local cast_file=${3:-/tmp/$1.cast}
	(bash-record-asciinema $cast_file ${3} || [ $? = 215 ]) || return 1
	time docker run --rm -v $(dirname $cast_file):/tmp -v $PWD:/data voiski/svg-term-cli \
		--in "/tmp/$1.cast" --out "/data/$1.svg"
		# Missing speed
}