1 files changed, 66 insertions, 0 deletions

diff --git a/cli/internal/runsummary/format_json.go b/cli/internal/runsummary/format_json.go
new file mode 100644
index 0000000..76a0a40
--- /dev/null
+++ b/cli/internal/runsummary/format_json.go
@@ -0,0 +1,66 @@
+package runsummary
+
+import (
+	"encoding/json"
+
+	"github.com/pkg/errors"
+	"github.com/segmentio/ksuid"
+	"github.com/vercel/turbo/cli/internal/util"
+)
+
+// FormatJSON returns a json string representing a RunSummary
+func (rsm *Meta) FormatJSON() ([]byte, error) {
+	rsm.normalize() // normalize data
+
+	var bytes []byte
+	var err error
+
+	if rsm.singlePackage {
+		bytes, err = json.MarshalIndent(nonMonorepoRunSummary(*rsm.RunSummary), "", "  ")
+	} else {
+		bytes, err = json.MarshalIndent(rsm.RunSummary, "", "  ")
+	}
+
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to render JSON")
+	}
+	return bytes, nil
+}
+
+func (rsm *Meta) normalize() {
+	for _, t := range rsm.RunSummary.Tasks {
+		t.EnvVars.Global = rsm.RunSummary.GlobalHashSummary.envVars
+		t.EnvVars.GlobalPassthrough = rsm.RunSummary.GlobalHashSummary.passthroughEnvVars
+	}
+
+	// Remove execution summary for dry runs
+	if rsm.runType == runTypeDryJSON {
+		rsm.RunSummary.ExecutionSummary = nil
+	}
+
+	// For single packages, we don't need the Packages
+	// and each task summary needs some cleaning.
+	if rsm.singlePackage {
+		rsm.RunSummary.Packages = []string{}
+
+		for _, task := range rsm.RunSummary.Tasks {
+			task.cleanForSinglePackage()
+		}
+	}
+}
+
+// nonMonorepoRunSummary is an exact copy of RunSummary, but the JSON tags are structured
+// for rendering a single-package run of turbo. Notably, we want to always omit packages
+// since there is no concept of packages in a single-workspace repo.
+// This struct exists solely for the purpose of serializing to JSON and should not be
+// used anywhere else.
+type nonMonorepoRunSummary struct {
+	ID                ksuid.KSUID        `json:"id"`
+	Version           string             `json:"version"`
+	TurboVersion      string             `json:"turboVersion"`
+	GlobalHashSummary *GlobalHashSummary `json:"globalCacheInputs"`
+	Packages          []string           `json:"-"`
+	EnvMode           util.EnvMode       `json:"envMode"`
+	ExecutionSummary  *executionSummary  `json:"execution,omitempty"`
+	Tasks             []*TaskSummary     `json:"tasks"`
+}