include doesn't recognize '~' as home directory

[m-j-w]

On Linux, using today's master, including a file using tilde as first character is not recognized as a file below the user home directory:

julia> include("~/test.jl")
ERROR: could not open file /home/mjw/src/julia-master/~/test.jl
Stacktrace:
 [1] include_from_node1(::String) at ./loading.jl:539
 [2] include(::String) at ./sysimg.jl:14
julia> pwd()
"/home/mjw/src/julia-master"

[m-j-w]

A possible fix might be to add expanduser to https://github.com/JuliaLang/julia/blob/master/base/sysimg.jl#L7-L17 where not in the first include state:

function include(path::AbstractString)
    local result
    if INCLUDE_STATE === 1
        result = Core.include(path)
    elseif INCLUDE_STATE === 2
        result = _include(expanduser(path))
    elseif INCLUDE_STATE === 3
        result = include_from_node1(expanduser(path))
    end
    result
end

giving

julia> include("~/test.jl")
ERROR: could not open file /home/mjw/test.jl
Stacktrace:
 [1] include_from_node1(::String) at ./loading.jl:539
 [2] include(::String) at ./sysimg.jl:14

If this is indeed a feasible fix I could make a PR.

[yuyichao]

No functions implicitly treat ~ as home directory. Doing that for low level functions will cause many unwanted corner cases.

[yuyichao]

Ref #1136. AFAICT this is a shell thing so doing that in shell mode/command literal might make sense but doing it for other low level interfaces doesn't make sense.