Git: Ignore file trước đó đã commit.

If you want to ignore a file that you’ve committed in the past, you’ll need to delete the file from your repository and then add a .gitignore rule for it. Using the —cached option with git rm means that the file will be deleted from your repository, but will remain in your working directory as an ignored file.

$ echo debug.log >> .gitignore
$ git rm --cached debug.log
rm 'debug.log'
$ git commit -m "Start ignoring debug.log"

You can omit the —cached option if you want to delete the file from both the repository and your local file system.

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