git add -A和 git add . git add -u作用和区别

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git add -A和 git add .   git add -u在功能上看似很相近,但还是存在一点差别


git add . :他会监控工作区的状态树,使用它会把工作时的所有变化提交到暂存区,包括文件内容修改(modified)以及新文件(new),但不包括被删除的文件。


git add -u :他仅监控已经被add的文件(即tracked file),他会将被修改的文件提交到暂存区。add -u 不会提交新文件(untracked file)。(git add --update的缩写)


git add -A :是上面两个功能的合集(git add --all的缩写)


下面是具体操作例子,方便更好的理解(Git version 1.x):


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git init
echo Change me > change-me
echo Delete me > delete-me
git add change-me delete-me
git commit -m initial


echo OK >> change-me
rm delete-me
echo Add me > add-me


git status
# Changed but not updated:
#   modified:   change-me
#   deleted:    delete-me
# Untracked files:
#   add-me


git add .
git status


# Changes to be committed:
#   new file:   add-me
#   modified:   change-me
# Changed but not updated:
#   deleted:    delete-me


git reset


git add -u
git status


# Changes to be committed:
#   modified:   change-me
#   deleted:    delete-me
# Untracked files:
#   add-me


git reset


git add -A
git status


# Changes to be committed:
#   new file:   add-me
#   modified:   change-me
#   deleted:    delete-me
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总结:


·  git add -A  提交所有变化


·  git add -u  提交被修改(modified)和被删除(deleted)文件,不包括新文件(new)


·  git add .  提交新文件(new)和被修改(modified)文件,不包括被删除(deleted)文件