feat: initial public version

config/load.go

@@ -0,0 +1,94 @@
+package config
+
+import (
+	"encoding/json"
+	"os"
+)
+
+// Read reads application config from JSON files.
+func Read(cfgPath, boxPath, cmdPath string) (*Config, error) {
+	cfg, err := ReadConfig(cfgPath)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg, err = ReadBoxes(cfg, boxPath)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg, err = ReadCommands(cfg, cmdPath)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, err
+}
+
+// ReadConfig reads application config from a JSON file.
+func ReadConfig(path string) (*Config, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg := &Config{}
+	err = json.Unmarshal(data, cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, err
+}
+
+// ReadBoxes reads boxes config from a JSON file.
+func ReadBoxes(cfg *Config, path string) (*Config, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	boxes := make(map[string]*Box)
+	err = json.Unmarshal(data, &boxes)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, box := range boxes {
+		setBoxDefaults(box, cfg.Box)
+	}
+
+	cfg.Boxes = boxes
+	return cfg, err
+}
+
+// ReadCommands reads commands config from a JSON file.
+func ReadCommands(cfg *Config, path string) (*Config, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	commands := make(map[string]SandboxCommands)
+	err = json.Unmarshal(data, &commands)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, playCmds := range commands {
+		for _, cmd := range playCmds {
+			if cmd.Before != nil {
+				setStepDefaults(cmd.Before, cfg.Step)
+			}
+			for _, step := range cmd.Steps {
+				setStepDefaults(step, cfg.Step)
+			}
+			if cmd.After != nil {
+				setStepDefaults(cmd.After, cfg.Step)
+			}
+		}
+	}
+
+	cfg.Commands = commands
+	return cfg, err
+}