Error when trying to use this extension with sourcekite in WSL bash

[eternalphane]

If I wrap bash, swift and sourcekite with batch files like:

@bash -c "~/sourcekite/.build/debug/sourcekite %*"

and set the "swift.path" in user preference to path of those batch files, then I keep getting errors This socket has been ended by the other party.

If I replace all the spawn(executable) in your extension with spawn(bash, ["-c", executable]) and set the path things to WSL paths, it works just fine.

So how can I avoid the error without modifying your code, or would you mind add some settings for WSL users?

[eternalphane]

The error "This socket has been ended by the other party" is caused by incorrect paths in the request sent to sourcekite.
The wrong request is as below:

{
  key.request: source.request.cursorinfo,
  key.sourcefile: "/e%3A/Projects/Swift/sde-test/test.swift",
  key.offset: 49,
  key.compilerargs: ["/e%3A/Projects/Swift/sde-test/test.swift","-I","e:\\Projects\\Swift\\sde-test\\.build\\debug","-I","/usr/lib/swift/pm/"],
  key.sourcetext: "class Test {\r\n    class func test() {\r\n        print(\"aaa\")\r\n    }\r\n}\r\n\r\nTest.test()\r\n"
}

The response is as below:

sourcekit: [1:getBufferStamp: 0.0000] failed to stat file: /e%3A/Projects/Swift/sde-test/test.swift (No such file or directory)
sourcekit: [1:createASTUnit: 0.0011] failed getting file contents for /e%3A/Projects/Swift/sde-test/test.swift: error opening input file '/e%3A/Projects/Swift/sde-test/test.swift' (No such file or directory)

Could you please add a setting to identify whether or not the user is on WSL, and translate Windows paths to WSL paths in your code? It's sort of easy to deal with the path, with the following regular expressions:

s/\\/\//g

s/([A-Za-z]):\/(.*)/\/mnt\/\L\1\/\2/
#or
s/([A-Za-z])%3A\/(.*)/\/mnt\/\L\1\/\2/