"Merge" environments

General Usage
1

I have a Project+Manifest file and I would like to add packages as specified by the Manifest file into into another environment (say the global one). Is this possible?

2

Yes, put them all in the LOAD_PATH. The earlier ones take precedence but they are effectively merged.

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3

In concrete terms, I believe Stefan’s answer means

push!(LOAD_PATH, "path/to/your/Project.toml")

In Julia 1.4, the default value of LOAD_PATH is

julia> LOAD_PATH
3-element Array{String,1}:
 "@"
 "@v#.#"
 "@stdlib"

which expands to

julia> Base.load_path()
2-element Array{String,1}:
 "/home/ettersi/.julia/environments/v1.4/Project.toml"
 "/opt/julia/julia-1.4.2/share/julia/stdlib/v1.4"

in the default environment, and

julia> Base.load_path()
3-element Array{String,1}:
 "/path/to/package/Project.toml"
 "/home/ettersi/.julia/environments/v1.4/Project.toml"
 "/opt/julia/julia-1.4.2/share/julia/stdlib/v1.4"

if you activated a package environment.

Note that this in particular means that the packages in your default environment are available even when you activate a package environment.

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