Nice idea! One could call it a bit pity that you had to write this in Python rather than in Squeak itself, but it is the result tthat counts. :-)


Next up: Squeaker Hub, squeaker-compose, and integrated CI support for Squeaker images? :D


Best,

Christoph

________________________________
Von: Squeak-dev <squeak-dev-bounces at lists.squeakfoundation.org> im Auftrag von Tony Garnock-Jones <tonyg at leastfixedpoint.com>
Gesendet: Donnerstag, 18. November 2021 09:42:23
An: The general-purpose Squeak developers list
Betreff: [squeak-dev] [ANN] Squeaker: Like Docker, but for Squeak. You know, for kids.

I found myself in need of a way to script the production of clean images
customised by some sequence of Smalltalk commands. ("Cattle, not pets.")

Presto,

        https://github.com/tonyg/squeaker

 From the README (https://github.com/tonyg/squeaker#readme):

====
It's a small program that helps in automated derivation of configured
Smalltalk images from some fixed base image and a collection of
Smalltalk commands. It's about 500 lines of Python, so far.

  - Squeakerfile.st is like Dockerfile, except it contains locations to
fetch images from plus Smalltalk expressions to derive new images.

  - squeaker build is like docker build. It manages a cache (in
$XDG_CACHE_HOME/squeaker, usually $HOME/.cache/squeaker on Unix) of
downloaded artifacts, derived images, and the stages in each derivation.

  - squeaker run is like docker run. It starts a previously-downloaded
or -derived image in a temporary directory. (Future: support persistent
image instances, like docker does! Easy enough.)

  - squeaker gc is like docker system prune, roughly. It cleans out the
Squeaker cache directory, treating tags as GC roots.
====

Please try it out and let me know what you think!

Cheers,
   Tony

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