move ComposeResult type into common package to allow its reusing

internal/common/compose_result.go

@@ -0,0 +1,72 @@
+package common
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+)
+
+type ComposeResult struct {
+	TreeID   string `json:"tree_id"`
+	OutputID string `json:"output_id"`
+	Build    *struct {
+		Stages []struct {
+			Name    string          `json:"name"`
+			Options json.RawMessage `json:"options"`
+			Success bool            `json:"success"`
+			Output  string          `json:"output"`
+		} `json:"stages"`
+		TreeID  string `json:"tree_id"`
+		Success bool   `json:"success"`
+	} `json:"build"`
+	Stages []struct {
+		Name    string          `json:"name"`
+		Options json.RawMessage `json:"options"`
+		Success bool            `json:"success"`
+		Output  string          `json:"output"`
+	} `json:"stages"`
+	Assembler *struct {
+		Name    string          `json:"name"`
+		Options json.RawMessage `json:"options"`
+		Success bool            `json:"success"`
+		Output  string          `json:"output"`
+	} `json:"assembler"`
+	Success bool `json:"success"`
+}
+
+func (cr *ComposeResult) Write(writer io.Writer) {
+	if cr.Build == nil && len(cr.Stages) == 0 && cr.Assembler == nil {
+		fmt.Fprintf(writer, "The compose result is empty.\n")
+	}
+
+	if cr.Build != nil {
+		fmt.Fprintf(writer, "Build pipeline:\n")
+
+		for _, stage := range cr.Build.Stages {
+			fmt.Fprintf(writer, "Stage %s\n", stage.Name)
+			enc := json.NewEncoder(writer)
+			enc.SetIndent("", "  ")
+			enc.Encode(stage.Options)
+			fmt.Fprintf(writer, "\nOutput:\n%s\n", stage.Output)
+		}
+	}
+
+	if len(cr.Stages) > 0 {
+		fmt.Fprintf(writer, "Stages:\n")
+		for _, stage := range cr.Stages {
+			fmt.Fprintf(writer, "Stage: %s\n", stage.Name)
+			enc := json.NewEncoder(writer)
+			enc.SetIndent("", "  ")
+			enc.Encode(stage.Options)
+			fmt.Fprintf(writer, "\nOutput:\n%s\n", stage.Output)
+		}
+	}
+
+	if cr.Assembler != nil {
+		fmt.Fprintf(writer, "Assembler %s:\n", cr.Assembler.Name)
+		enc := json.NewEncoder(writer)
+		enc.SetIndent("", "  ")
+		enc.Encode(cr.Assembler.Options)
+		fmt.Fprintf(writer, "\nOutput:\n%s\n", cr.Assembler.Output)
+	}
+}