run_pipeline_redirect_output

run_pipeline_redirect_output.jl

# https://discourse.julialang.org/t/iobuffer-becomes-not-writable-after-run/92323
function run_pipeline_redirect_output(cmd::Cmd; stdout::IO=stdout, stderr::IO=stderr)

    @assert iswritable(stdout) && iswritable(stderr)

    tmp_stdout = isa(stdout, IOBuffer) ? IOBuffer() : stdout
    tmp_stderr = isa(stderr, IOBuffer) ? IOBuffer() : stderr

    local ret

    try
        ret = run(pipeline(cmd, stdout=tmp_stdout, stderr=tmp_stderr))
    catch err

        if isa(stdout, IOBuffer)
            write(stdout, take!(tmp_stdout))
        end

        if isa(stderr, IOBuffer)
            write(stderr, take!(tmp_stderr))
        end

        rethrow()
    end

    if isa(stdout, IOBuffer)
        write(stdout, take!(tmp_stdout))
    end

    if isa(stderr, IOBuffer)
        write(stderr, take!(tmp_stderr))
    end

    @assert iswritable(stdout) && iswritable(stderr)

    return ret
end