Add folder interface and support native pathmap folder type.

Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>

1 files changed, 30 insertions, 10 deletions

diff --git a/lib/xdsconfig/fileconfig.go b/lib/xdsconfig/fileconfig.go
index 90c1aad..2dbf884 100644
--- a/lib/xdsconfig/fileconfig.go
+++ b/lib/xdsconfig/fileconfig.go
@@ -11,6 +11,16 @@ import (
 	common "github.com/iotbzh/xds-common/golib"
 )
 
+const (
+	// ConfigDir Directory in user HOME directory where xds config will be saved
+	ConfigDir = ".xds"
+	// GlobalConfigFilename Global config filename
+	GlobalConfigFilename = "config.json"
+	// FoldersConfigFilename Folders config filename
+	FoldersConfigFilename = "server-config_folders.xml"
+)
+
+// SyncThingConf definition
 type SyncThingConf struct {
 	BinDir          string `json:"binDir"`
 	Home            string `json:"home"`
@@ -19,6 +29,7 @@ type SyncThingConf struct {
 	RescanIntervalS int    `json:"rescanIntervalS"`
 }
 
+// FileConfig is the JSON structure of xds-server config file (config.json)
 type FileConfig struct {
 	WebAppDir    string         `json:"webAppDir"`
 	ShareRootDir string         `json:"shareRootDir"`
@@ -28,21 +39,21 @@ type FileConfig struct {
 	LogsDir      string         `json:"logsDir"`
 }
 
-// getConfigFromFile reads configuration from a config file.
+// readGlobalConfig reads configuration from a config file.
 // Order to determine which config file is used:
 //  1/ from command line option: "--config myConfig.json"
 //  2/ $HOME/.xds/config.json file
 //  3/ <current_dir>/config.json file
 //  4/ <xds-server executable dir>/config.json file
-
-func updateConfigFromFile(c *Config, confFile string) error {
+func readGlobalConfig(c *Config, confFile string) error {
 
 	searchIn := make([]string, 0, 3)
 	if confFile != "" {
 		searchIn = append(searchIn, confFile)
 	}
 	if usr, err := user.Current(); err == nil {
-		searchIn = append(searchIn, path.Join(usr.HomeDir, ".xds", "config.json"))
+		searchIn = append(searchIn, path.Join(usr.HomeDir, ConfigDir,
+			GlobalConfigFilename))
 	}
 	cwd, err := os.Getwd()
 	if err == nil {
@@ -70,7 +81,6 @@ func updateConfigFromFile(c *Config, confFile string) error {
 	// TODO move on viper package to support comments in JSON and also
 	// bind with flags (command line options)
 	// see https://github.com/spf13/viper#working-with-flags
-
 	fd, _ := os.Open(*cFile)
 	defer fd.Close()
 	fCfg := FileConfig{}
@@ -79,14 +89,15 @@ func updateConfigFromFile(c *Config, confFile string) error {
 	}
 
 	// Support environment variables (IOW ${MY_ENV_VAR} syntax) in config.json
-	for _, field := range []*string{
+	vars := []*string{
 		&fCfg.WebAppDir,
 		&fCfg.ShareRootDir,
 		&fCfg.SdkRootDir,
-		&fCfg.LogsDir,
-		&fCfg.SThgConf.Home,
-		&fCfg.SThgConf.BinDir} {
-
+		&fCfg.LogsDir}
+	if fCfg.SThgConf != nil {
+		vars = append(vars, &fCfg.SThgConf.Home, &fCfg.SThgConf.BinDir)
+	}
+	for _, field := range vars {
 		var err error
 		if *field, err = common.ResolveEnvVar(*field); err != nil {
 			return err
@@ -123,3 +134,12 @@ func updateConfigFromFile(c *Config, confFile string) error {
 	c.FileConf = fCfg
 	return nil
 }
+
+// FoldersConfigFilenameGet
+func FoldersConfigFilenameGet() (string, error) {
+	usr, err := user.Current()
+	if err != nil {
+		return "", err
+	}
+	return path.Join(usr.HomeDir, ConfigDir, FoldersConfigFilename), nil
+}