initial commit

conf/funcs.go

@@ -0,0 +1,75 @@
+package conf
+
+import (
+	`encoding/json`
+
+	"github.com/BurntSushi/toml"
+	"github.com/creasty/defaults"
+	"github.com/goccy/go-yaml"
+	"r00t2.io/sysutils/paths"
+)
+
+func NewConfig(path string) (cfg *Config, err error) {
+
+	var b []byte
+
+	if err = paths.RealPath(&path); err != nil {
+		return
+	}
+
+	cfg, err = NewConfigFromBytes(b)
+
+	return
+}
+
+func NewConfigFromBytes(b []byte) (cfg *Config, err error) {
+
+	if err = json.Unmarshal(b, &cfg); err != nil {
+		if err = yaml.Unmarshal(b, &cfg); err != nil {
+			if err = toml.Unmarshal(b, &cfg); err != nil {
+				if err = toml.Unmarshal(b, &cfg); err != nil {
+					err = ErrUnkownSyntax
+					return
+				}
+			}
+		}
+	}
+
+	if err = defaults.Set(cfg); err != nil {
+		return
+	}
+
+	if cfg.CacheDB != ":memory:" {
+		if err = paths.RealPath(&cfg.CacheDB); err != nil {
+			return
+		}
+	}
+
+	if err = validate.Struct(cfg); err != nil {
+		return
+	}
+
+	for _, t := range cfg.Tunnels {
+		t.cfg = cfg
+		if t.Username == nil {
+			if cfg.Username == nil {
+				err = ErrMissingUser
+				return
+			} else {
+				t.Username = cfg.Username
+			}
+		}
+		if t.TemplateConfigs != nil && len(t.TemplateConfigs) > 0 {
+			for _, tpl := range t.TemplateConfigs {
+				if err = paths.RealPath(&tpl.Template); err != nil {
+					return
+				}
+				if err = paths.RealPath(&tpl.Dest); err != nil {
+					return
+				}
+			}
+		}
+	}
+
+	return
+}