GitHub clone script

clone.sh

#!/bin/bash

set -e
set -u

DEFAULT_ORGANIZATION=tksst

function getconf(){
    git config --local "$1"|| true
}

function normalizeRepo(){
  # https://github.com/ で始まる場合は取り、末尾の.gitも取る
  if [[ $1 =~ ^https://github.com/  ]]; then
    local tmp="${1#https://github.com/}"
  else
    local tmp="$1"
  fi

  if [[ ! $tmp =~ / ]]; then
    local tmp="$DEFAULT_ORGANIZATION/$tmp"
  fi

  echo "${tmp%.git}"
}

# devcontainer内からは実行しないようにする
if [[ -f /.dockerenv ]]; then
  echo "We are seems to be in container" >&2
  exit 4
fi

repo=$( normalizeRepo "$1" )
dir="${repo##*/}"

if [[ -d $dir ]]; then
  echo "seems it is already cloned" >&2
  exit 5
fi

mkdir "$dir"
cd "$dir"

# public or private ?
status=$( curl -s --head -w '%{http_code}\n' -o /dev/null "https://github.com/$repo" )

if [[ $status == '200' ]]; then
  git clone --filter=blob:none --recursive "https://github.com/$repo.git" .
else
  git clone --recursive "https://tksst@github.com/$repo.git" .
fi

git remote set-url --push origin "git@github.com:$repo.git"

ms_before=$( getconf merge.stat )
sa_before=$( getconf status.aheadbehind )

scalar register

if [[ $ms_before != "false" && $( getconf merge.stat ) == "false" ]]; then
  git config --local --unset merge.stat
  echo "restore default for merge.stat" >&2
fi

if [[ $sa_before != "false" && $( getconf status.aheadbehind ) == "false" ]]; then
  git config --local --unset status.aheadbehind
  echo "restore default for status.aheadbehind" >&2
fi