Add "Checkout" command to commit files

[tiansin]

• GitLens Version: 9.5.1
• VSCode Version: 1.32.3
• OS Version: mac 10.13.6
• Git Version: 2.18.0

Steps to Reproduce:

#574

[2019-03-18 11:15:05:114] git — -c, core.quotepath=false, -c, color.ui=false, apply, --whitespace=warn, -3, cwd='/Users/xxxx/project'

Error: error: patch failed: resources/views/home/index.blade.php:37
Falling back to three-way merge...
error: patch failed: resources/views/home/index.blade.php:37
error: resources/views/home/index.blade.php: patch does not apply

[2019-03-18 11:15:05:383] message
Error: error: patch failed: resources/views/home/index.blade.php:37
Falling back to three-way merge...
error: patch failed: resources/views/home/index.blade.php:37
error: resources/views/home/index.blade.php: patch does not apply

[eamodio]

@tiansin why do you think this is because of whitespace conflicts? --whitespace=warn is set which will just report whitespace issues, but not block the apply. It is also falling back to 3-way merge, but is also failing. I'm not sure what I can do here, as git is failing to apply your patch.

[tiansin]

Sorry, I always thought that this command was to check out the file and replace the local file content. It may be that I understood it wrong.

[eamodio]

It used to at one point but that was really a bug. Although I could add it back as a new Checkout command.