如何Bash脚本Git本地分支检查？

Question

寻求解决方案以实现以下目标:

• 如果当前创建时未创建当前分支
• 如果它已经存在则提示用户并转到下一个语句

到目前为止,我已经有了它的工作,但不是那里.我的问题实际上是后者,但我想花点时间重新思考整个事情并获得一些关于如何更好地写这个的反馈.

当分支在那里时,变量existing_branch提供SHA和refs/heads/branchName,否则git将保持并提供预期的fatal:

check_for_branch() {
 args=("$@")
 echo `$branch${args[0]}`
 existing_branch=$?
}

create_branch() {
  current="git rev-parse --abbrev-ref HEAD"
  branch="git show-ref --verify refs/heads/"

  args=("$@")
  branch_present=$(check_for_branch ${args[0]})
  echo $branch_present
  read -p "Do you really want to create branch $1 " ans
  case $ans in
    y | Y | yes | YES | Yes)
        if [  ! -z branch_present ]; then
          echo  "Branch already exists"
        else
          `git branch ${args[0]}`
          echo  "Created ${args[0]} branch"
        fi
    ;;
     n | N | no | NO | No)
      echo "exiting"
    ;;
    *)
    echo "Enter something I can work with y or n."
    ;;
    esac
}

Answer 1

您可以避免提示分支是否已存在,并稍微缩短脚本,如下所示:

create_branch() {
  branch="${1:?Provide a branch name}"

  if git show-ref --verify --quiet "refs/heads/$branch"; then
    echo >&2 "Branch '$branch' already exists."
  else
    read -p "Do you really want to create branch $1 " ans
    ...
  fi
}