JuliaCustom

The following are steps how to setup a custom installation of Julia on Cocalc

1. Get a 64 bit linux tarball: https://julialang.org/downloads/
2. Extract it, and symlink from your ~/bin/julia to it's bin/julia:

   cd; mkdir bin; cd bin
   ln -s ~/<extracted-tarball-dir>/bin/julia julia
   

3. Make sure ~/bin is in your PATH, e.g. by appending export PATH=$HOME/bin:$HOME/.local/bin:$PATH to your ~/.bashrc file.
4. Tell Julia to use a package directory inside your project, add this line to your ~/.bashrc: export JULIA_PKGDIR=$HOME/.julia
5. Restart the terminal and test you got the correct julia:

   ~$ which julia
   /projects/<your-project-uuid>/bin/julia
   ~$ julia --version
   julia version 0.5.2
   ~$ echo $JULIA_PKGDIR
   /projects/<your-project-uuid>/.julia
   

6. For running Julia in the Jupyter Notebook, you also need to install IJulia and your own jupyter kernel:

   $ julia
   > Pkg.init()
   > Pkg.add("IJulia")
   

   Then add this file into ~/.local/share/jupyter/kernels/julia-my/kernel.json:

{
  "display_name": "Julia (local)",
  "argv": [
    "/projects/<YOUR-PROJECT-UUID>/bin/julia",
    "-i",
    "--startup-file=yes",
    "/projects/<YOUR-PROJECT-UUID>/.julia/v0.5/IJulia/src/kernel.jl",
    "{connection_file}"
  ],
  "language": "julia"
}