reference global logrus (#274)

* reference logrus' global logger instead of passing and storing a logger reference everywhere

* always directly use global logrus logger instead of referencing an instance

* test suites should also directly use the global logrus logger

* rename gin logging function to clarify that it's middleware

* correct comments which erroneously referenced removed logger parameter

* setting log level for tests now uses logrus' exported type instead of the string value, to guarantee error isn't possible

testrig/log.go

@@ -19,16 +19,14 @@
 package testrig
 
 import (
-	"github.com/superseriousbusiness/gotosocial/internal/log"
-
 	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/log"
 )
 
-// NewTestLog returns a trace level logger for testing
-func NewTestLog() *logrus.Logger {
-	logger, err := log.New("trace")
+// InitTestLog sets the global logger to trace level for logging
+func InitTestLog() {
+	err := log.Initialize(logrus.TraceLevel.String())
 	if err != nil {
 		panic(err)
 	}
-	return logger
 }