git 入门教程之删除文件

时间：2023-03-08 16:46:10
git 入门教程之删除文件

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)

$

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")

$

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)

$

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.

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