152 lines
3.7 KiB
Go
152 lines
3.7 KiB
Go
package app
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
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"gitea.maximumdirect.net/eric/narratio/internal/config"
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"gitea.maximumdirect.net/eric/narratio/internal/manifest"
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"gitea.maximumdirect.net/eric/narratio/internal/stage"
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)
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type stageAction string
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const (
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stageActionRun stageAction = "run"
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stageActionSkip stageAction = "skip"
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)
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type stageDecision struct {
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Stage stage.Stage
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Action stageAction
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}
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const (
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staleReasonForcedReplacement = "upstream stage was force-run"
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staleReasonChangedResult = "upstream stage result changed"
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staleReasonFailure = "upstream stage failed"
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staleReasonSelfSkip = "upstream stage self-skipped"
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staleReasonNotResumable = "upstream stage result was not resumable"
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)
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type priorStageOutcome struct {
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exists bool
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status manifest.StageStatus
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skipReason string
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outputs int
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}
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func decideStageActions(stages []stage.Stage, m *manifest.Manifest, force bool) []stageDecision {
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out := make([]stageDecision, 0, len(stages))
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for _, s := range stages {
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out = append(out, stageDecision{
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Stage: s,
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Action: decideStageAction(s, m, force),
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})
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}
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return out
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}
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func decideStageAction(s stage.Stage, m *manifest.Manifest, force bool) stageAction {
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// TODO: incorporate stale detection once checksum/input change tracking is implemented.
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if !force && stageSucceeded(m, s.Name()) {
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return stageActionSkip
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}
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return stageActionRun
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}
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func stageSucceeded(m *manifest.Manifest, name string) bool {
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if m == nil || m.Stages == nil {
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return false
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}
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sr := m.Stages[name]
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return sr != nil && sr.Status == manifest.StatusSucceeded
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}
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func capturePriorStageOutcome(m *manifest.Manifest, name string) priorStageOutcome {
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if m == nil || m.Stages == nil || m.Stages[name] == nil {
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return priorStageOutcome{}
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}
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record := m.Stages[name]
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outcome := priorStageOutcome{
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exists: true,
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status: record.Status,
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outputs: len(record.Outputs),
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}
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if record.Error != nil && record.Error.Code == "skipped" {
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outcome.skipReason = record.Error.Message
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}
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return outcome
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}
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func (o priorStageOutcome) isSameSelfSkip(reason string) bool {
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return o.exists &&
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o.status == manifest.StatusSkipped &&
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o.outputs == 0 &&
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o.skipReason == strings.TrimSpace(reason)
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}
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func loadManifestIfPresent(ctx context.Context, cfg *config.Config) (*manifest.Manifest, error) {
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path := artifacts.SessionManifestPathForCampaign(
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cfg.Pipeline.Workspace.Root,
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cfg.Session.Campaign,
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cfg.Session.SessionID,
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)
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exists, err := fileExists(path)
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if err != nil {
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return nil, fmt.Errorf("check manifest %q: %w", path, err)
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}
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if !exists {
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return nil, nil
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}
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store := &manifest.LocalStore{}
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m, err := store.Load(ctx, path)
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if err != nil {
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return nil, fmt.Errorf("load manifest %q: %w", path, err)
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}
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return m, nil
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}
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func canonicalStageNames() []string {
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all := stage.All()
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out := make([]string, 0, len(all))
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for _, s := range all {
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if s == nil {
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continue
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}
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out = append(out, s.Name())
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}
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return out
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}
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func downstreamStageNames(stageName string) []string {
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names := canonicalStageNames()
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for i, name := range names {
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if name != stageName {
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continue
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}
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return append([]string(nil), names[i+1:]...)
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}
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return nil
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}
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func invalidateDownstreamSucceededStagesWithReason(m *manifest.Manifest, upstreamStage string, at time.Time, reason string) []string {
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if m == nil || m.Stages == nil {
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return nil
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}
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invalidated := make([]string, 0)
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for _, downstream := range downstreamStageNames(upstreamStage) {
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sr := m.Stages[downstream]
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if sr == nil || sr.Status != manifest.StatusSucceeded {
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continue
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}
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m.MarkStageStale(downstream, at, reason)
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invalidated = append(invalidated, downstream)
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}
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return invalidated
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}
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