GitHubの既存プロジェクトもデフォルトブランチをmainに

#!/bin/bash

DOMAIN=github.com
OWNER=kyoh86

PROJ_DIR="${HOME}/Projects/github.com"

if [ -d "${PROJ_DIR}" ]; then
  :
elif [ -e "${PROJ_DIR}" ]; then
  echo "invalid file exist: ${PROJ_DIR}"
  exit 1
else
  mkdir -p "${PROJ_DIR}"
fi

function run() {
  gh api --paginate "/users/${OWNER}/repos?type=owner&visibility=public" \
    | jq -r '.[]|select(.default_branch=="master" and .fork==false)|.full_name' \
    | while read -r repo
  do
    repo_dir="${PROJ_DIR}/${repo}"
    if [ -d "${repo_dir}" ]; then
      echo "# ${repo} is already processed"
    else
      echo "# processing ${repo}"
      git clone "https://${DOMAIN}/${repo}" "${repo_dir}" || return

      rg 'master' "${repo_dir}"
      grep_result=$?
      if [ $grep_result -eq 0 ]; then
        :
      else
        echo "# master not found"
        git -C "${repo_dir}" branch -m main && \
        git -C "${repo_dir}" push origin main  && \
        gh api --silent -X PATCH "/repos/${repo}" --field default_branch="main"
      fi
    fi
  done
}

run