jjmerelo/alpine-perl6 repository overview

⁠alpine-perl6

A Docker container with Raku using the minimalist Linux distro Alpine.

It includes

• Perl6, latest version
• zef for module installation
• Linenoise⁠ for easy shell use.
• curl which is needed for some other downstream compatibilities.

New images should be automatically available at the Docker hub⁠.

⁠Working with this container

Use

docker run -it jjmerelo/alpine-perl6

to get into the perl6 interpreter REPL. Can also be used as a "binary" this way

docker run -t jjmerelo/alpine-perl6 -e "say 'hello þor'"

or you can get into the container by running

docker run -it --entrypoint sh -l -c jjmerelo/alpine-perl6

You can also run external scripts via the mounted /app volume. After changing to this directory

docker run -v `pwd`:/app -it  jjmerelo/alpine-perl6 /app/heloþor.p6

This heloþor.p6 is the example provided in this repo, which you should have cloned or downloaded in the usual way. Check out the use of þ. Cool, isn't it? You can use any other directory instead of /app

For instance, we can create a directory this way

docker run -t jjmerelo/alpine-perl6 -e "mkdir 'p6-app'; say 'p6-app'.IO.abspath;"

This will return

/root/p6-app

And then

docker run -t -v `pwd`:/root/p6-app jjmerelo/alpine-perl6 /root/p6-app/pell.p6 6

which would return the first 6 Pell numbers⁠. Or

docker run -t -v `pwd`:/root/p6-app jjmerelo/alpine-perl6 /root/p6-app/horadam.p6 10

which will return the 10 first elements of the Horadam sequence⁠ for p=0, q=1, r= 0.25, s=0.75.

⁠Install new modules

Since zef is installed, you can use it to install new modules. You can do it by getting into the container and running the shell:

docker run -it --entrypoint="/bin/sh" jjmerelo/alpine-perl6

and then

zef install Math::Constants

Or directly in a single command

docker run -it --rm  --entrypoint=/bin/sh jjmerelo/alpine-perl6 -c "zef install Math::Sequences"

This overrides the default entrypoint and, instead, runs zef as a shell command, installing the module within the container.

⁠More one-liners for demos

Check out the Madhava-Leibniz series that computes the digits of Pi⁠ or the binomial coefficients⁠

⁠Contributions

Contributions, suggestions and patches are welcome.

⁠Previous versions

Previous versions of perl6/raku are available also as image tags. For instance, you can do

docker run -t jjmerelo/alpine-perl6:2019.07 -e "'hello þor'.say"

to download and/or run the 2019.07 version of this container.