The Swift server crashed 5 times in the last 3 minutes. The server will not be restarted

[gperdomor]

Using macOS Sierra

/Users/gustavoperdomo/.vscode/extensions/jinmingjian.sde-1.0.20170112/out/src/server/server.js:157
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sourcekitd-repl ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Info  - 3:40:48 PM] Connection to server got closed. Server will restart.
/Users/gustavoperdomo/.vscode/extensions/jinmingjian.sde-1.0.20170112/out/src/server/server.js:157
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sourcekitd-repl ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Info  - 3:40:49 PM] Connection to server got closed. Server will restart.
/Users/gustavoperdomo/.vscode/extensions/jinmingjian.sde-1.0.20170112/out/src/server/server.js:157
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sourcekitd-repl ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Info  - 3:40:49 PM] Connection to server got closed. Server will restart.
/Users/gustavoperdomo/.vscode/extensions/jinmingjian.sde-1.0.20170112/out/src/server/server.js:157
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sourcekitd-repl ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Info  - 3:40:49 PM] Connection to server got closed. Server will restart.
/Users/gustavoperdomo/.vscode/extensions/jinmingjian.sde-1.0.20170112/out/src/server/server.js:157
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sourcekitd-repl ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Error - 3:40:49 PM] Connection to server got closed. Server will not be restarted.

[mna]

You don't have the sourcekitd-repl tool in this location (/usr/bin/sourcekitd-repl ENOENT).

[vknabel]

@PuerkitoBio do you know where it is located on macOS?

[mna]

I'm trying to figure this out atm, looks like it isn't built by default (it's a test tool or something). I checked /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin and it's not there.

[jinmingjian]

online just now. really thanks for all report. The choose of 'sourcekitd-repl' is not accident. It is a tool made by official Swift team. So it should work in all platform which Swift supports. It is great.

The tool is also not built by default. I use a build preset file way (customized @ ~/.swift-build-presets) in my Linux which modified from the official preset file.

[jinmingjian]

please wait a moment. I will share you a build preset in Linux which give you some hints.

[jinmingjian]

this preset file now lives here.

the "secret“ may be this:

... extra-cmake-options="-DSWIFT_BUILD_SOURCEKIT:BOOL=ON -DSWIFT_TOOL_SOURCEKITD_REPL_BUILD=1"

dash-dash

swift-install-components=autolink-driver;compiler;clang-builtin-headers;stdlib;sdk-overlay;license;sourcekit-inproc;tools ...

at OSX, you may change:

sourcekit-inproc -> sourcekit-xpc-service

and component "tools" should corresponds to sourcekit side gen.

extra-cmake-options is must for Linux. but I guess no harm for OSX.

And it needs two passes in Linux: First, disable "sourcekit-inproc" comopnent for libdispatch, and second enable "sourcekit-inproc" for itself.

@alblue recently introduce a PR to solve this problem, but seemly reverted...

[jinmingjian]

Add if some successfully, it may be possible to only ship the binary for macOS in that the sourcekit lib should already have existed which used by xcode. Great.

[jinmingjian]

I just pushed new version into VSCode Marketplace which fixs #14 for macOS

[fwgreen]

I'm having the same problem on Ubuntu 16.04. I'm using https://github.com/norio-nomura/docker-sourcekit-builder provides sourcekitd-repl.

[jinmingjian]

and note: we need SPM 3.1 for the info of project which is not available for 3.0.

In macOS, it has fancy tool swiftenv for use.

More notes: It can be hard coded by assumption with Sources or src by ablue. But this is too special. One workaround is to use build.yaml. However, this is a internal generated build file. It is better to based on "swfit package"(which is official interface to reflect Pacakge.swift itself)

[jinmingjian]

@fwgreen do you have sourcekitd-repl in path? How about you execute the following cmd in shell:

which sourcekitd-repl

sourcekitd-repl

[jinmingjian]

@fwgreen thanks for report for Linux.

More note: sourcekitd-repl even can not be executed in my Arch default. Because the linked library name is not correct. The following workaround this:

sudo ln -s /usr/lib/sourcekitdInProc.framework/sourcekitdInProc /usr/lib/sourcekitdInProc

But the ubuntu release is officially supported, so I guess the problem should not be there...

[jinmingjian]

@fwgreen could you like to try some binary from my own build? :smile:

[fwgreen]

@jinmingjian I'll have to try and build it myself: I tried running sourcekitd-repl and got an error. Maybe the a complete language server written in TypeScript would save us 😄. I'll try to build it and report back.

[fwgreen]

@jinmingjian I managed to get sourcekitd-repl working, but the error persists 😞

[jinmingjian]

@fwgreen if sourcekitd-repl works, then it almost becomes working for all.

what is your exact error output?

and still show you output of the following cmd in shell:

which sourcekitd-repl

[jinmingjian]

you add a sym link to /usr/bin/sourcekitd-repl. or use override configurations. You can see all configurable constants in Extensions's page in vscode:

[jinmingjian]

ok, more detail config like this:

[rolandleth]

@PuerkitoBio I know this is not the place to ask, but I didn't manage to find the required info anywhere :( Any idea how to build the sourcekitd-repl / sourcekit on a mac?

[fwgreen]

which sourcekitd-repl returns

/usr/bin/sourcekitd-repl

sourcekitd-repl returns

Welcome to SourceKit.  Type ':help' for assistance.
(SourceKit) 

The output from vscode is

/home/fwgreen/.vscode/extensions/jinmingjian.sde-1.0.20170113/out/src/server/server.js:64
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sh ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Info  - 6:20:37 AM] Connection to server got closed. Server will restart.
/home/fwgreen/.vscode/extensions/jinmingjian.sde-1.0.20170113/out/src/server/server.js:64
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sh ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Info  - 6:20:38 AM] Connection to server got closed. Server will restart.
/home/fwgreen/.vscode/extensions/jinmingjian.sde-1.0.20170113/out/src/server/server.js:64
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sh ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Info  - 6:20:38 AM] Connection to server got closed. Server will restart.
/home/fwgreen/.vscode/extensions/jinmingjian.sde-1.0.20170113/out/src/server/server.js:64
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sh ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Info  - 6:20:38 AM] Connection to server got closed. Server will restart.
/home/fwgreen/.vscode/extensions/jinmingjian.sde-1.0.20170113/out/src/server/server.js:64
        throw err; //FIXME more friendly prompt
        ^

Error: spawn /usr/bin/sh ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Error - 6:20:39 AM] Connection to server got closed. Server will not be restarted.

[vknabel]

@jinmingjian Thanks I got it to work on macOS 🎉

@rolandleth I needed to compile it manually.

$ mkdir swift-sources && cd swift-sources
# Probably other swift versions will work too
$ git clone --branch swift-DEVELOPMENT-SNAPSHOT-2017-01-05-a --depth 1 https://github.com/apple/swift
$ brew install cmake ninja
$ swift/utils/update-checkout --clone
# This will end with an error about master not found or so, just ignore it

# Now I edited `swift/utils/build-presets.init` according to @jinmingjian
# As follows https://gist.github.com/vknabel/170caee6b5883624f55c4d7f1b0b259c/revisions
# On the line starting with: 'swift-install-components='
# I replaced 'sourcekit-xpc-service' with 'sourcekit-inproc'
$ swift/utils/build-script # This takes a while

# sourcekitd-repl is now at
# build/Ninja-DebugAssert/swift-macosx-x86_64/bin/sourcekitd-repl

Now you can either link it to /usr/bin or set "swift.path.sourcekitd_repl" in Code to the appropriate path.

[jinmingjian]

@vknabel Cool!

[rolandleth]

@vknabel Awesome, thanks a lot! 🎉

[vknabel]

@fwgreen You are using the docker container, right? Did you execute which sourcekitd_repl in docker run bash or so? I guess the problem is that only your docker has sourcekitd_repl, whereas the rest of your computer (including VS Code) doesn't. Maybe you need to create a bash script that passes all Inputs to docker run sourcekitd_repl and link that file to /usr/bin/sourcekitd_repl outside docker.

[jinmingjian]

@fwgreen you met issue #14 in Linux... you have not sh in /usr/bin/sh, find your sh, do a sym link to /usr/bin/sh. I will add config option later for you.

which sh

[jinmingjian]

@vknabel thanks for contributing ideas!

@rolandleth If you still have not build sourcekitd-repl successfully, you may wait for serveral days. I am considering add a simpler solution in #9. The implementation itself is trivial. But I hope to leave a space for further extension. So just wait several days.

After #9 fixed, I plan to ship the binary in the package. For Linux, we still need sourcekitd library to build:( For macOS, the state may be better, I guess sourcekitd have existed in that xcode, but we need to test. You can also help in this if interesting:)

[rolandleth]

@jinmingjian Oooh, that's great news! I already started building it, but I'll probably just delete everything after you release an update. Thanks!

[gperdomor]

Should be nice having sourcekitd-repl as a homebrew formula :D

[fwgreen]

@jinmingjian The symlink from /bin/sh to /usr/bin/sh did the trick! Thanks.

[jinmingjian]

@fwgreen #15 done. And I have published a new version. You can delete the sym link /usr/bin/sh now!