gh-bootstrap-repository

#!/bin/bash

repo="DoodleScheduling/gh-bootstrap-repository"
extension_path="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
tag_path="${extension_path}/dist"
exe="gh-bootstrap-repository"
platform=""
extension=""

determine_platform() {
  local arch
  arch="$(uname -m)"
  if uname -a | grep Msys > /dev/null; then
    extension=".exe"
    if [ $arch = "x86_64" ]; then
      platform="windows_amd64"
    fi
  elif uname -a | grep Darwin > /dev/null; then
    if [ $arch = "x86_64" ]; then
      platform="darwin_amd64"
    elif [ $arch = "arm64" ]; then
      platform="darwin_arm64"
    fi
  elif uname -a | grep Linux > /dev/null; then
    if [ $arch = "x86_64" ]; then
      platform="linux_amd64"
    elif [ $arch = "arm64" ]; then
      platform="linux_arm64"
    fi
  fi
}

download_latest_release() {
  mkdir -p "${tag_path}"
  gh release -R "${repo}" download --pattern "*${platform}*" --dir="${tag_path}"
  tar=$(ls ${tag_path}/${exe}_*_${platform}.tar.gz)
  tar -xzf $tar -C "${tag_path}"
}

if [ ! -e "${tag_path}/${exe}" ]; then
  determine_platform
  if [ "${platform}" == "" ]; then
    if [ "$(which go)" == "" ]; then
      echo "go must be installed to use this gh extension on this platform"
      exit 1
    fi
    mkdir -p "${tag_path}"
    pushd "${extension_path}" > /dev/null
    go build -o "${tag_path}/${exe}"
    popd > /dev/null
  else
    if [ ! -d "${tag_path}" ]; then
      download_latest_release
    fi
  fi
fi

exec "${tag_path}/${exe}" "$@"