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diff --git a/topics/ci-rethink-slides.gmi b/topics/ci-rethink-slides.gmi new file mode 100644 index 0000000..e8cb601 --- /dev/null +++ b/topics/ci-rethink-slides.gmi @@ -0,0 +1,28 @@ +# CI Rethink slides + +## Background +* guix-forge is an independent general purpose project that powers our CI +* guix-forge is built on laminar +* CI jobs are just simple scripts +* scripts are written in G-expressions, but don't have to be + +## So far +* purpose-written scripts that were executed in profiles with the necessary dependencies +* dependencies are from current Guix +* container had to be rebuilt to update dependencies +* jobs did not have access to high-level Guix features (package definitions, build systems, manifests, etc.) +* jobs only understood low-level features (profile paths, store paths, etc.) +* One advantage: job runs were fast + +## What's new? +* jobs have access to the full expressive power of Guix +* project repositories are channels +* jobs pull from the channels and build all packages defined therein +* job script definitions now in package definitions from channels +* container need not be rebuilt each time dependencies change +* Perfect reproducibility: Make Fred's life easier +* One disadvantage: job runs will take a while + +## Why now? +* Ludo's blog post “From development environments to continuous integration” +* realization that project repositories could be channels
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