understanding-git/basics/demoscript

#!/usr/bin/env bash

set -euo pipefail
scriptloc=$(cd $(dirname "${BASH_SOURCE[0]}") && pwd)

replace() {
keyword=$1
string=$2
python << END
with open("${scriptloc}/slides.md") as slides:
    content = slides.read()

string = """${string}"""
with open("${scriptloc}/slides.md", "w") as slides:
    slides.write(content.replace(r"${keyword}", string))
END
}

mdprint() {
    cmd=$*
    echo '```bash'
    echo '$' ${cmd}
    eval ${cmd}
    echo '```'
}

tmpdir=$(mktemp -d)
pushd ${tmpdir}

# delete temporary directory on script exit
trap "rm -fr ${tmpdir}" 0

# Initialise repository
init=$(mdprint git init)
replace "::init::" "${init}"

git config --local user.name "Achilleas Koutsou"
git config --local user.email "ak@example.com"

status1=$(mdprint git status)
replace "::status1::" "${status1}"

exit