[#224] Refactor logger tag configuration

Signed-off-by: Pavel Pogodaev <p.pogodaev@yadro.com>

cmd/http-gw/settings.go

@@ -113,7 +113,7 @@ const (
 
 	cfgLoggerTags           = "logger.tags"
 	cfgLoggerTagsPrefixTmpl = cfgLoggerTags + ".%d."
-	cfgLoggerTagsNameTmpl   = cfgLoggerTagsPrefixTmpl + "name"
+	cfgLoggerTagsNameTmpl   = cfgLoggerTagsPrefixTmpl + "names"
 	cfgLoggerTagsLevelTmpl  = cfgLoggerTagsPrefixTmpl + "level"
 
 	// Wallet.
@@ -516,8 +516,8 @@ func fetchLogTagsConfig(v *viper.Viper, defaultLvl zapcore.Level) (map[string]za
 	res := make(map[string]zapcore.Level)
 
 	for i := 0; ; i++ {
-		name := v.GetString(fmt.Sprintf(cfgLoggerTagsNameTmpl, i))
-		if name == "" {
+		tagNames := v.GetString(fmt.Sprintf(cfgLoggerTagsNameTmpl, i))
+		if tagNames == "" {
 			break
 		}
 
@@ -529,7 +529,12 @@ func fetchLogTagsConfig(v *viper.Viper, defaultLvl zapcore.Level) (map[string]za
 			}
 		}
 
-		res[name] = lvl
+		for _, tagName := range strings.Split(tagNames, ",") {
+			tagName = strings.TrimSpace(tagNames)
+			if len(tagName) != 0 {
+				res[tagName] = lvl
+			}
+		}
 	}
 
 	if len(res) == 0 && !v.IsSet(cfgLoggerTags) {

config/config.yaml

@@ -30,8 +30,7 @@ logger:
     thereafter: 100
     interval: 1s
   tags:
-    - name: app
-    - name: datapath
+    - names: app,datapath
       level: debug
 
 server:

docs/gate-configuration.md

@@ -176,10 +176,9 @@ logger:
     thereafter: 100
     interval: 1s
   tags:
-    - name: "app"
+    - names: "app,datapath"
       level: info        
-    - name: "datapath"
-    - name: "external_storage_tree"
+    - names: "external_storage_tree"
 ```
 
 | Parameter             | Type       | SIGHUP reload | Default value | Description                                                                                        |
@@ -199,14 +198,14 @@ parameter. Available tags:
 
 ```yaml
 tags:
-  - name: "app"
+  - names: "app,datapath"
     level: info
 ```
 
-| Parameter             | Type       | SIGHUP reload | Default value             | Description                                                                                           |
-|-----------------------|------------|---------------|---------------------------|-------------------------------------------------------------------------------------------------------|
-| `name`                | `string`   | yes           |                           | Tag name. Possible values see below in `Tag values` section.                                          |
-| `level`               | `string`   | yes           | Value from `logger.level` | Logging level for specific tag. Possible values: `debug`, `info`, `warn`, `dpanic`, `panic`, `fatal`. |
+| Parameter | Type       | SIGHUP reload | Default value             | Description                                                                                           |
+|-----------|------------|---------------|---------------------------|-------------------------------------------------------------------------------------------------------|
+| `names`   | `[]string` | yes           |                           | Tag names separated by `,`.  Possible values see below in `Tag values` section.                       |
+| `level`   | `string`   | yes           | Value from `logger.level` | Logging level for specific tag. Possible values: `debug`, `info`, `warn`, `dpanic`, `panic`, `fatal`. |
 
 ### Tag values