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feat: initial v3 rewrite

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technofab 2025-09-01 15:04:20 +02:00
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61
lib/impl/pipeline.nix Normal file
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{
lib,
helpers,
mkJobDeps,
mkJobRun,
mkJobPatched,
}: let
inherit (lib) assertMsg;
inherit (helpers) filterAttrsRec customMapAttrs toYaml toYamlPretty;
in
{
name,
pipeline,
nixConfig,
}: let
jobs = filterAttrsRec (_n: v: v != null) pipeline.jobs;
rest = filterAttrsRec (_n: v: v != null) (builtins.removeAttrs pipeline ["jobs"]);
# this allows us to nix build this to get all the mentioned dependencies from the binary cache
# pro: we don't have to download everything, just the deps for the current job
# before, we just allowed pkgs inside the script string directly, but now with the ability to source this file
# we can support different architectures between runners (eg. the arch of the initial runner does not matter)
jobsMappedForDeps =
customMapAttrs (key: job: {
name = "gitlab-ci:pipeline:${name}:job-deps:${key}";
value = mkJobDeps {inherit key job nixConfig;};
})
jobs;
# allows the user to directly run the script
jobsMappedForScript =
customMapAttrs (key: job: {
name = "gitlab-ci:pipeline:${name}:job:${key}";
value = mkJobRun {
inherit key job nixConfig;
jobDeps = jobsMappedForDeps."gitlab-ci:pipeline:${name}:job-deps:${key}";
};
})
jobs;
# build the deps specific for this job before anything, this way the deps should be fetched from the cache
jobsPatched =
customMapAttrs (key: job: {
name = key;
value = assert assertMsg (builtins.elem job.stage (rest.stages or [])) "stage '${job.stage}' of job '${key}' does not exist";
mkJobPatched {
inherit key job nixConfig;
pipelineName = name;
};
})
jobs;
in {
packages =
# gitlab-ci:pipeline:<name>
# gitlab-ci:pipeline:<name>:job:<name>
# gitlab-ci:pipeline:<name>:job-deps:<name>
{
"gitlab-ci:pipeline:${name}" = toYaml "gitlab-ci-${name}.yml" (rest // jobsPatched);
"gitlab-ci:pipeline:${name}:pretty" = toYamlPretty "gitlab-ci-${name}.yml" (rest // jobsPatched);
}
// jobsMappedForDeps
// jobsMappedForScript;
finalConfig = rest // jobsPatched;
}