On command line, I could open a directory like:
code .
Now, I want two of the identical diretory opened and displayed in another window.
(It's not spliting the editor)
Then, I tried again.
code .
Nothing happened.
There's still one directory opened.
How to achieve such a task?
You can do this with the following ways:
1- Manually open a new window (ctrlshiftn) and go to:
File > Add folder to Workspace. Then just select the folder.
2- Open the command panel (ctrlshiftp) enter dupl and hit enter that will duplicate the current workspace in a new window
*dupl is just a filter for the complete command that is: Workspaces: Duplicate Workspace in New Window thanks to dipnlink comment
Source: https://code.visualstudio.com/docs/editor/multi-root-workspaces
*Done in windows (10), vscode (1.35.1)
in latest version it is actually much simpler.
In the tab of the project you want to duplicate, open the command panel (Command + shift + P in Mac), then type dupl, this will duplicate your workspace in new window. Now you can have 2 versions of the same project at the same time.
Click Add workspace folder... and open the same folder. Works for me, other solution doesn't work, just jump focus to another window.
As far as I know, the accepted answer is not correct as C14L indicates.
It can be done by opening a different folder that includes the folder you're working in. So say we have /project and /project/src and /project/build, you're probably interested in having src open in two instances of VSCode, which you can achieve by opening /project and /project/src.
