refactor: export and move shared contexts into pkg/model (#931)

This commit moves the githubContext, jobContext and stepResult structs
from the runner package to the model package in preparation for #908
because the expression.go file lives in the runner package and would
introduce cyclic dependencies with the exprparser package.

Co-authored-by: Markus Wolf <markus.wolf@new-work.se>

Co-authored-by: Markus Wolf <markus.wolf@new-work.se>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/model/github_context.go

@@ -0,0 +1,28 @@
+package model
+
+type GithubContext struct {
+	Event            map[string]interface{} `json:"event"`
+	EventPath        string                 `json:"event_path"`
+	Workflow         string                 `json:"workflow"`
+	RunID            string                 `json:"run_id"`
+	RunNumber        string                 `json:"run_number"`
+	Actor            string                 `json:"actor"`
+	Repository       string                 `json:"repository"`
+	EventName        string                 `json:"event_name"`
+	Sha              string                 `json:"sha"`
+	Ref              string                 `json:"ref"`
+	HeadRef          string                 `json:"head_ref"`
+	BaseRef          string                 `json:"base_ref"`
+	Token            string                 `json:"token"`
+	Workspace        string                 `json:"workspace"`
+	Action           string                 `json:"action"`
+	ActionPath       string                 `json:"action_path"`
+	ActionRef        string                 `json:"action_ref"`
+	ActionRepository string                 `json:"action_repository"`
+	Job              string                 `json:"job"`
+	JobName          string                 `json:"job_name"`
+	RepositoryOwner  string                 `json:"repository_owner"`
+	RetentionDays    string                 `json:"retention_days"`
+	RunnerPerflog    string                 `json:"runner_perflog"`
+	RunnerTrackingID string                 `json:"runner_tracking_id"`
+}

pkg/model/job_context.go

@@ -0,0 +1,12 @@
+package model
+
+type JobContext struct {
+	Status    string `json:"status"`
+	Container struct {
+		ID      string `json:"id"`
+		Network string `json:"network"`
+	} `json:"container"`
+	Services map[string]struct {
+		ID string `json:"id"`
+	} `json:"services"`
+}

pkg/model/step_result.go

@@ -0,0 +1,43 @@
+package model
+
+import "fmt"
+
+type stepStatus int
+
+const (
+	StepStatusSuccess stepStatus = iota
+	StepStatusFailure
+)
+
+var stepStatusStrings = [...]string{
+	"success",
+	"failure",
+}
+
+func (s stepStatus) MarshalText() ([]byte, error) {
+	return []byte(s.String()), nil
+}
+
+func (s *stepStatus) UnmarshalText(b []byte) error {
+	str := string(b)
+	for i, name := range stepStatusStrings {
+		if name == str {
+			*s = stepStatus(i)
+			return nil
+		}
+	}
+	return fmt.Errorf("invalid step status %q", str)
+}
+
+func (s stepStatus) String() string {
+	if int(s) >= len(stepStatusStrings) {
+		return ""
+	}
+	return stepStatusStrings[s]
+}
+
+type StepResult struct {
+	Outputs    map[string]string `json:"outputs"`
+	Conclusion stepStatus        `json:"conclusion"`
+	Outcome    stepStatus        `json:"outcome"`
+}