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import ( "fmt" "path" "strings"
"tangled.sh/tangled.sh/core/api/tangled" "tangled.sh/tangled.sh/core/workflow")
func nixConfStep() Step { setupCmd := `echo 'extra-experimental-features = nix-command flakes' >> /etc/nix/nix.confecho 'build-users-group = ' >> /etc/nix/nix.conf` return Step{ Command: setupCmd, Name: "Configure Nix", }}
// cloneOptsAsSteps processes clone options and adds corresponding steps// to the beginning of the workflow's step list if cloning is not skipped.//// the steps to do here are:// - git init// - git remote add origin <url>// - git fetch --depth=<d> --recurse-submodules=<yes|no> <sha>// - git checkout FETCH_HEADfunc cloneStep(twf tangled.Pipeline_Workflow, tr tangled.Pipeline_TriggerMetadata, dev bool) Step { if twf.Clone.Skip { return Step{} }
var commands []string
// initialize git repo in workspace commands = append(commands, "git init")
// add repo as git remote scheme := "https://" if dev { scheme = "http://" tr.Repo.Knot = strings.ReplaceAll(tr.Repo.Knot, "localhost", "host.docker.internal") } url := scheme + path.Join(tr.Repo.Knot, tr.Repo.Did, tr.Repo.Repo) commands = append(commands, fmt.Sprintf("git remote add origin %s", url))
// run git fetch { var fetchArgs []string
// default clone depth is 1 depth := 1 if twf.Clone.Depth > 1 { depth = int(twf.Clone.Depth) } fetchArgs = append(fetchArgs, fmt.Sprintf("--depth=%d", depth))
// optionally recurse submodules if twf.Clone.Submodules { fetchArgs = append(fetchArgs, "--recurse-submodules=yes") }
// set remote to fetch from fetchArgs = append(fetchArgs, "origin")
// set revision to checkout switch workflow.TriggerKind(tr.Kind) { case workflow.TriggerKindManual: // TODO: unimplemented case workflow.TriggerKindPush: fetchArgs = append(fetchArgs, tr.Push.NewSha) case workflow.TriggerKindPullRequest: fetchArgs = append(fetchArgs, tr.PullRequest.SourceSha) }
commands = append(commands, fmt.Sprintf("git fetch %s", strings.Join(fetchArgs, " "))) }
// run git checkout commands = append(commands, "git checkout FETCH_HEAD")
cloneStep := Step{ Command: strings.Join(commands, "\n"), Name: "Clone repository into workspace", } return cloneStep}
// dependencyStep processes dependencies defined in the workflow.// For dependencies using a custom registry (i.e. not nixpkgs), it collects// all packages and adds a single 'nix profile install' step to the// beginning of the workflow's step list.func dependencyStep(twf tangled.Pipeline_Workflow) *Step { var customPackages []string
for _, d := range twf.Dependencies { registry := d.Registry packages := d.Packages
if registry == "nixpkgs" { continue }
if len(packages) == 0 { customPackages = append(customPackages, registry) } // collect packages from custom registries for _, pkg := range packages { customPackages = append(customPackages, fmt.Sprintf("'%s#%s'", registry, pkg)) } }
if len(customPackages) > 0 { installCmd := "nix --extra-experimental-features nix-command --extra-experimental-features flakes profile install" cmd := fmt.Sprintf("%s %s", installCmd, strings.Join(customPackages, " ")) installStep := Step{ Command: cmd, Name: "Install custom dependencies", Environment: map[string]string{ "NIX_NO_COLOR": "1", "NIX_SHOW_DOWNLOAD_PROGRESS": "0", }, } return &installStep } return nil}