LSP working for Erlang

backend/src/langs.ts

@@ -368,6 +368,7 @@ output = "Hello, world!"
     main: "main.erl",
     compile: "erl -compile main",
     run: "erl -s main main",
+    lsp: "erlang_ls",
     template: `-module(main).
 -export([main/0]).
 

scripts/docker-install-phase3b.bash

@@ -17,6 +17,7 @@ emacs-nox
 
 # Erlang
 erlang
+rebar
 
 # F#
 fsharp

scripts/docker-install-phase5.bash

@@ -35,6 +35,7 @@ rm dmd_*.deb
 wget -nv https://github.com/elixir-lsp/elixir-ls/releases/download/v0.5.0/elixir-ls.zip
 unzip -d /opt/elixir-ls elixir-ls.zip
 ln -s /opt/elixir-ls/language_server.sh /usr/bin/elixir-ls
+rm elixir-ls.zip
 
 # Elm
 wget -nv https://github.com/elm/compiler/releases/download/0.19.1/binary-for-linux-64-bit.gz
@@ -42,6 +43,11 @@ gunzip binary-for-linux-64-bit.gz
 chmod +x binary-for-linux-64-bit
 mv binary-for-linux-64-bit /usr/bin/elm
 
+# Erlang
+wget -nv https://s3.amazonaws.com/rebar3/rebar3
+chmod +x rebar3
+mv rebar3 /usr/bin/rebar3
+
 # Go
 export GO111MODULE=on
 export GOPATH=/tmp/go

scripts/docker-install-phase7.bash

@@ -5,6 +5,14 @@ set -o pipefail
 set -x
 pushd /tmp >/dev/null
 
+# Erlang
+git clone https://github.com/erlang-ls/erlang_ls.git
+pushd erlang_ls >/dev/null
+make
+mv _build/default/bin/erlang_ls /usr/bin/erlang_ls
+popd >/dev/null
+rm -rf erlang_ls
+
 # Kalyn
 git clone https://github.com/raxod502/kalyn.git
 pushd kalyn >/dev/null