git 入门教程之删除文件

Love The Way You Lie 2022-10-01 10:52 219阅读 0赞

# 删除文件 #

回忆一下文件的常见操作,新增文件,修改文件,删除文件等,新增和修改文件都单独讨论过,现在我们来研究一下如何删除文件.

你可能会说删除文件还不简单啊,直接 `rm -rf <file>` 即可,但是这仅仅是本地文件被删除了,对于 `git` 来说,文件并没有被删除.

还记得我们开篇介绍`git` 时就说过,`一切操作皆版本` ,对于新增是一个版本,修改也是一个版本,就连删除都是一个版本.

下面让我们看一下 `git` 中如何删除文件吧!

## 背景 ##

# 查看当前文件列表
    $ ls
    file1.txt   file2.txt   file3.txt   newFile.txt test.txt
    # 新建待删除文件
    $ touch delete.txt
    # 再次查看当前文件列表,确保新建文件成功
    $ ls
    delete.txt  file2.txt   newFile.txt
    file1.txt   file3.txt   test.txt
    # 查看当前文件状态: 新文件 `delete.txt` 还没被跟踪
    $ git status
    On branch master
    Untracked files:
      (use "git add <file>..." to include in what will be committed)
    
        .DS_Store
        delete.txt
    
    nothing added to commit but untracked files present (use "git add" to track)
    # 添加新文件 `delete.txt`
    $ git add delete.txt
    # 查看文件状态: 已添加到暂存区,待提交到版本库
    $ git status
    On branch master
    Changes to be committed:
      (use "git reset HEAD <file>..." to unstage)
    
        new file:   delete.txt
    
    Untracked files:
      (use "git add <file>..." to include in what will be committed)
    
        .DS_Store
    
    # 提交新文件 `delete.txt`
    $ git commit -m "add delete.txt"
    [master 7df386a] add delete.txt
     1 file changed, 0 insertions(+), 0 deletions(-)
     create mode 100644 delete.txt
    # 再次查看文件状态: 已经没有新文件 `delete.txt` 的更改信息
    $ git status
    On branch master
    Untracked files:
      (use "git add <file>..." to include in what will be committed)
    
        .DS_Store
    
    nothing added to commit but untracked files present (use "git add" to track)
    $ 
    复制代码

以上操作,我们简单创建 `delete.txt` 文件,添加(`git add`)并提交(`git commit`) 该文件,完成准备工作后,开始删除文件!

# 删除前文件列表
    $ ls
    delete.txt  file2.txt   newFile.txt
    file1.txt   file3.txt   test.txt
    # 删除刚刚创建的文件 `delete.txt`
    $ rm delete.txt
    # 删除后文件列表
    $ ls
    file1.txt   file2.txt   file3.txt   newFile.txt test.txt
    # 当前文件状态: `delete.txt` 文件已被删除,且未添加到暂存区
    $ git status
    On branch master
    Changes not staged for commit:
      (use "git add/rm <file>..." to update what will be committed)
      (use "git checkout -- <file>..." to discard changes in working directory)
    
        deleted:    delete.txt
    
    Untracked files:
      (use "git add <file>..." to include in what will be committed)
    
        .DS_Store
    
    no changes added to commit (use "git add" and/or "git commit -a")
    $ 
    复制代码

本地删除 `delete.txt` 文件后,再次查看文件状态 `git status` 发现 `git` 给了我们两条建议,其中一条 `git checkout -- <file>` 我们很熟悉,就是丢弃工作区的更改,此时此景下如果丢弃删除操作,相当于撤销删除,难怪说删除也是一个版本呢!

现在我们重点来看第一条建议 `git add/rm <file>` ,`rm` 是 `remove` 单词的缩写,即删除文件.

# 删除文件
    $ git rm delete.txt
    rm 'delete.txt'
    # 查看文件状态: `delete.txt` 文件待提交
    $ git status
    On branch master
    Changes to be committed:
      (use "git reset HEAD <file>..." to unstage)
    
        deleted:    delete.txt
    
    Untracked files:
      (use "git add <file>..." to include in what will be committed)
    
        .DS_Store
    
    # 提交文件
    $ git commit -m "remove delete.txt"
    [master 6298070] remove delete.txt
     1 file changed, 0 insertions(+), 0 deletions(-)
     delete mode 100644 delete.txt
    # 再次查看文件状态
    $ git status
    On branch master
    Untracked files:
      (use "git add <file>..." to include in what will be committed)
    
        .DS_Store
    
    nothing added to commit but untracked files present (use "git add" to track)
    $ 
    复制代码

删除文件和添加文件类似,都是一次`commit` ,本地文件的任何更改都要添加到暂存区,然后提交到版本库.

## 小结 ##

删除文件和新增文件类似逻辑,`git rm` 删除文件后,依然需要 `git commit` 提交版本.

转载于:https://juejin.im/post/5c8eff426fb9a0710250376f