System clipboard register does not work on Linux

[xconverge]

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What did you do?

"vim.useSystemClipboard": true

Yanking does not go to system clipboard

What did you expect to happen?

Yank to system clipboard

What happened instead?

Nothing seemed to go into * register

Technical details:

• VSCode Version: 1.5.3
• VsCodeVim Version: [please ensure you are on the latest]
• OS: Ubuntu 16.04

[xconverge]

sudo apt-get install xclip on one of my machines fixed it, I will check to see if xclip is installed on the other machine...

Figured this out when I ran with the debugger there was a stack trace and looked into the npm copy-paste package we are using for this stuff

Error: spawn xclip ENOENT
at exports._errnoException (util.js:890:11)
at Process.global.ChildProcess._handle.onexit (internal/child_process.js:182:32)
at onErrorNT (internal/child_process.js:348:16)
at _combinedTickCallback (internal/process/next_tick.js:74:11)
at process._tickCallback (internal/process/next_tick.js:98:9)

Will potentially close this once I verify the issue is the same with my other computer.

[xconverge]

Verified this on the 2nd machine, xclip was not installed

I will create a PR for a tiny documentation update next to where we mention useSystemClipboard in README.md

[jpoon]

@xconverge thanks for looking into this. Looking into the copy-paste project, some folks filed an issue on the same thing: https://github.com/xavi-/node-copy-paste. However, last commit has been several months ago so the project.