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/*
This exercise demonstrates the first workflow consisting of multiple
steps. We will build upon the previous example by using the string
produced in exercise 1 as input to this workflow. You can see how other
files can be imported and used in the construction of workflows using
`callBionix`, which imports a file and passes it `bionix` along with
potentially some additional arguments.
Goal: fill out the stage here to reverse the string using the `rev`
program, which reads lines on stdin and writes them to stdout with the
characters reversed. You will need to choose exactly *which* rev you
want to use in `buildInputs`: there are three providers available
(busybox, toybox, utillinux) and you can try them all.
Bonus: change the last line to call rev twice, thereby reversing the
strings back to the original orientation
*/
{bionix}:
with bionix; let
hello-world = callBionix ../ex1-hello-world {};
rev = input:
stage {
name = "rev";
buildInputs = [];
buildCommand = ''
'';
};
in
rev hello-world
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