Zach Olivare - 2022 Feb 16
Git somewhat recently introduced two new commands, switch and restore
Git somewhat recently introduced two new commands, switch and restore. Together, these commands split up the functionality of the
git checkout command.
At first glance it might seem odd that these new commands aren't introducing any new functionality. But consider all the different types of things that the
checkout command can do:
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# Switch to an existing branch git checkout <branch> # Create a new branch (and switch to it) git checkout -b newBranch # Discard changes to a file git checkout -- <file> # Replace the contents of a file (with whatever's in main) git checkout main -- <file>
There are two categories of functionality happening in those examples:
Here's how you would perform those same tasks using switch and restore:
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# Switch to an existing branch git switch <branch> # Create a new branch (and switch to it) # -c is short for --create git switch --create newBranch # Discard changes to a file git restore <file> # Replace the contents of a file (with whatever's in main) git restore <file> --source main
restore command also provides a (potentially more logical) new way to unstage files.
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# The old way git reset HEAD <file> # The new way git restore --staged <file>
The old way used the
reset command to copy from HEAD (your last commit) to the index (staging area). Because the HEAD and index now match, the change you made to the file only exists in your working directory, meaning the file is "unstaged".
With the new way, you're stating that you want to "restore staged files" and by default, if
--staged is given, the contents are restored from HEAD. The effect is the same as the old way, copying from HEAD to the index, "unstaging" the file.
I've always felt that the old way was a roundabout way to accomplish unstaging a file, made extra confusing by the implied
--mixed. The new way is still not the most clear thing in the world, but in my opinion it's in incremental improvement.
To clear that up, you should create a git alias!
git config --global alias.unstage "restore --staged"
And then you can use it like this:
git unstage <file>