Use preferred temp dir for debug log file

cointop/cointop.go

@@ -224,10 +224,6 @@ var DefaultFavoriteChar = "*"
 
 // NewCointop initializes cointop
 func NewCointop(config *Config) (*Cointop, error) {
-	if os.Getenv("DEBUG") != "" {
-		log.SetLevel(log.DebugLevel)
-	}
-
 	if config == nil {
 		config = &Config{}
 	}
@@ -317,7 +313,8 @@ func NewCointop(config *Config) (*Cointop, error) {
 			Input:       NewInputView(),
 		},
 	}
-	ct.initlog()
+
+	ct.setLogConfiguration()
 
 	err := ct.SetupConfig()
 	if err != nil {

cointop/debug.go

@@ -8,8 +8,15 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-func (ct *Cointop) initlog() {
-	filename := "/tmp/cointop.log"
+func (ct *Cointop) setLogConfiguration() {
+	if os.Getenv("DEBUG") != "" {
+		log.SetLevel(log.DebugLevel)
+		ct.setLogOutputFile()
+	}
+}
+
+func (ct *Cointop) setLogOutputFile() {
+	filename := pathutil.NormalizePath(":PREFERRED_TEMP_DIR:/cointop.log")
 	debugFile := os.Getenv("DEBUG_FILE")
 	if debugFile != "" {
 		filename = pathutil.NormalizePath(debugFile)