refactor: move all logging functions to their own file

plugins/common/log.go

@@ -0,0 +1,42 @@
+package common
+
+import (
+	"fmt"
+	"os"
+)
+
+// LogFail is the failure log formatter
+// prints text to stderr and exits with status 1
+func LogFail(text string) {
+	fmt.Fprintln(os.Stderr, fmt.Sprintf("FAILED: %s", text))
+	os.Exit(1)
+}
+
+// LogInfo1 is the info1 header formatter
+func LogInfo1(text string) {
+	fmt.Fprintln(os.Stdout, fmt.Sprintf("-----> %s", text))
+}
+
+// LogInfo1Quiet is the info1 header formatter (with quiet option)
+func LogInfo1Quiet(text string) {
+	if os.Getenv("DOKKU_QUIET_OUTPUT") != "" {
+		LogInfo1(text)
+	}
+}
+
+// LogInfo2 is the info2 header formatter
+func LogInfo2(text string) {
+	fmt.Fprintln(os.Stdout, fmt.Sprintf("=====> %s", text))
+}
+
+// LogInfo2Quiet is the info2 header formatter (with quiet option)
+func LogInfo2Quiet(text string) {
+	if os.Getenv("DOKKU_QUIET_OUTPUT") != "" {
+		LogInfo2(text)
+	}
+}
+
+// LogWarn is the warning log formatter
+func LogWarn(text string) {
+	fmt.Fprintln(os.Stderr, fmt.Sprintf(" !     %s", text))
+}