git-new

#!/bin/bash
#
# Create a new git repository, initialised "properly"
#-----------------------------------------------------------------------------
usage() {
	printf 'Usage: %s [owner/]<repo-name>\n' "${0##*/}"
}

#-----------------------------------------------------------------------------
main() {
	set -e
	if (($# != 1)); then
		printf 'Missing repo name\n' >&2
		usage >&2
		exit 1
	fi

	new::read_config
	new::create_repo "$1"
	new::create_remote_repo "$1"
}

#-----------------------------------------------------------------------------
# Config value taken from git-config(1) if present
use_github=false
github_owner=''

new::read_config() {
	new::_get_config use_github use-github
	new::_get_config github_owner github-owner
}

new::create_repo() {
	local repo="${1##*/}"
	git init "${repo}"
	cd "${repo}"
	fmt -72 <<EOM | git commit --allow-empty -F -
🌱 Initialise Repository

Create an empty commit to initialise the repository so that rebase and
similar commands operate consistently with a parent commit.
EOM
}

new::create_remote_repo() {
	local owner="${1%%/*}"
	local repo="${1##*/}"

	[[ "${use_github}" == true ]] || return 0
	if [[ -n "${owner}" ]]; then
		github_owner="${owner}"
	elif [[ -z "${github_owner}" ]]; then
		github_owner="$(hub api https://api.github.com/user | jq -r .login)"
	fi

	hub create "${github_owner}/${repo}"
	git remote set-url origin "https://github.com/${github_owner}/${repo}"
	git push -u
}

new::_get_config() {
	local var="$1" name="$2"
	local val
	if val=$(git config --get new."${name}"); then
		eval "${var}='${val}'"
	fi
}

#-----------------------------------------------------------------------------
[[ "$(caller)" != 0\ * ]] || main "$@"