Change Package directory in Julia

Question

I want to change the Package directory in Julia. The default is

\"~/.julia/v0.4\"

I want to move it to /opt/julia/v0.4/

Answer 1

Julia only way:

julia> ENV["JULIA_PKGDIR"] = "E:\\Julia-0.6.0\\portable"
"E:\\Julia-0.6.0\\portable"

julia> ENV["JULIA_PKGDIR"]
"E:\\Julia-0.6.0\\portable"

julia> Pkg.init()
INFO: Initializing package repository E:\Julia-0.6.0\portable\v0.6
INFO: Cloning METADATA from https://github.com/JuliaLang/METADATA.jl

However, the cache dir is still pointing to the old folder, so I checked why that is and figured it out:

julia> Base.LOAD_CACHE_PATH
1-element Array{String,1}:
 "C:\\Users\\kung\\.julia\\lib\\v0.6"

julia> Pkg.__init__()
2-element Array{String,1}:
 "E:\\Julia-0.6.0\\portable\\lib\\v0.6"
 "C:\\Users\\kung\\.julia\\lib\\v0.6"

julia> pop!(Base.LOAD_CACHE_PATH)
"C:\\Users\\kung\\.julia\\lib\\v0.6"

julia> Base.LOAD_CACHE_PATH
1-element Array{String,1}:
 "E:\\Julia-0.6.0\\portable\\lib\\v0.6"

As simple function:

function set_julia_dir(dir::String)
    ENV["JULIA_PKGDIR"] = dir
    Pkg.init()
    Pkg.__init__()
    pop!(Base.LOAD_CACHE_PATH)
end

set_julia_dir("E:\\Julia-0.6.0\\portable")