Recover status of a package from julia

General Usage
1

Hi,
I would like to recover a string containing the status of a given package (v.2.2.2 in the example) but I am only able to print it out

julia> Pkg.status("CuArrays")
Project BTL v0.1.0
Status `~/Project/BTL.jl/Project.toml`
  [3a865a2d] CuArrays v2.2.2

Is there a simple way to do it ?

2

Hi!

Would something along those lines work for you?

original_stdout = stdout
(rd, wr)  = redirect_stdout()
Pkg.status("CuArrays")
s = readline(rd)
redirect_stdout(original_stdout)
println(s)

See: In Julia 1.0+: How do I get strings using redirect_stdout - Stack Overflow

1 Like
3

Thanks a lot, this will do.
I was wondering if I missed some obvious solution.

4

Actually this only returns the first line.
I wonder why there is no IO first argument as it is often the case with Julia functions.

5

In that case you can just use readlines(rd) to get an array of strings.

But after a bit of tinkering around, I think this here suits you better than my solution above:

io = IOBuffer(read=true, write=true)
Pkg.status("CuArrays", io=io)
s = String(take!(io))
println(s)
1 Like
6

Yes, much nicer !

I wonder why the help does not mention the io argument

help?> Pkg.status
  Pkg.status([pkgs...]; mode::PackageMode=PKGMODE_PROJECT, diff::Bool=false)
...

Than you again !

7

https://julialang.github.io/Pkg.jl/v1/api/#Redirecting-output-1

It is something general, not only for status()

2 Likes