git add . vs git commit
What's the difference between:
git add . git commit -a Should I be doing both, or is that redundant?
git commit -a means almost[*] the same thing as git add -u && git commit .
It's not the same as git add . as this would add untracked files that aren't being ignored, git add -u only stages changes (including deletions) to already tracked files.
[*] There's a subtle difference if you're not at the root directory of your repository. git add -u stages updates to files in the current directory and below, it's equivalent to git add -u . whereas git commit -a stages and commits changes to all tracked files.
git commit -a automatically invokes git add on all files it knows about. You can use git add to select what files to commit. Consult the docs for more info: here
通过使用git commit -a开关和commit命令来自动“添加”来自所有已知文件的更改（即，已经在索引中列出的所有文件）
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