./run

#!/usr/bin/env bash
# -*- mode: sh; coding: us-ascii-unix -*-
set -e -E -u

REPO="demodir"
rm -rf "$REPO"
mkdir -p "$REPO"
cd "$REPO"

git init
git config user.email "me@me.org"
git config user.name "me"

git commit --allow-empty -m "Empty initial state."
git commit --allow-empty -m $'We start from here.\nBla bla bla.'

echo hello > hello.txt
echo world > world.txt
git add .
git commit -m $'First commit.'

echo foo.bar > hello.txt
git add .
git commit -m $'Second commit\nWith more details in the body.'

delim() {
    echo
    echo ------------------------------------------------------------------------------
    echo
}

run(){
    printf ">> "
    printf "%q " "$@"
    printf "\n"
    "$@"
}

indent(){
    while IFS= read -r LINE; do
        echo "    $LINE"
    done
}

delim
run git log -3 --graph --name-status | indent
delim
run git log -3 --graph --name-status --format="%h:%s" | indent
delim
run git log -3 --graph --name-status --format="%n%h:%s" | indent
delim