refractor: add initial go internall pkg module.

pkg/logging/logging.go

@@ -0,0 +1,90 @@
+// apparmor.d - Full set of apparmor profiles
+// Copyright (C) 2023 Alexandre Pujol <alexandre@pujol.io>
+// SPDX-License-Identifier: GPL-2.0-only
+
+package logging
+
+import (
+	"fmt"
+	"os"
+)
+
+// Colors
+const (
+	reset      = "\033[0m"
+	bold       = "\033[1m"
+	boldRed    = "\033[1;31m"
+	boldGreen  = "\033[1;32m"
+	boldYellow = "\033[1;33m"
+)
+
+// Logging messages prefix
+const (
+	bulletText  = bold + " ⋅ " + reset
+	errorText   = boldRed + " ✗ Error: " + reset
+	successText = boldGreen + " ✓ " + reset
+	warningText = boldYellow + " ‼ " + reset
+)
+
+// Print prints a formatted message. Arguments are handled in the manner of fmt.Print.
+func Print(msg string, a ...interface{}) int {
+	n, _ := fmt.Fprintf(os.Stdout, msg, a...)
+	return n
+}
+
+// Println prints a formatted message. Arguments are handled in the manner of fmt.Println.
+func Println(msg string) int {
+	n, _ := fmt.Fprintf(os.Stdout, msg+"\n")
+	return n
+}
+
+// Bulletf returns a formatted bullet point string
+func Bulletf(msg string, a ...interface{}) string {
+	return fmt.Sprintf("%s%s\n", bulletText, fmt.Sprintf(msg, a...))
+}
+
+// Bullet prints a formatted bullet point string
+func Bullet(msg string, a ...interface{}) int {
+	return Print(Bulletf(msg, a...))
+}
+
+// Stepf returns a formatted step string
+func Stepf(msg string, a ...interface{}) string {
+	return fmt.Sprintf("%s%s\033[0m\n", boldGreen, fmt.Sprintf(msg, a...))
+}
+
+// Step prints a step title
+func Step(msg string, a ...interface{}) int {
+	return Print(Stepf(msg, a...))
+}
+
+// Successf returns a formatted success string
+func Successf(msg string, a ...interface{}) string {
+	return fmt.Sprintf("%s%s\n", successText, fmt.Sprintf(msg, a...))
+}
+
+// Success prints a formatted success message to stdout
+func Success(msg string, a ...interface{}) int {
+	return Print(Successf(msg, a...))
+}
+
+// Warningf returns a formatted warning string
+func Warningf(msg string, a ...interface{}) string {
+	return fmt.Sprintf("%s%s\n", warningText, fmt.Sprintf(msg, a...))
+}
+
+// Warning prints a formatted warning message to stdout
+func Warning(msg string, a ...interface{}) int {
+	return Print(Warningf(msg, a...))
+}
+
+// Fatalf returns a formatted error message
+func Fatalf(msg string, a ...interface{}) string {
+	return fmt.Sprintf("%s%s\n", errorText, fmt.Sprintf(msg, a...))
+}
+
+// Fatal is equivalent to Print() followed by a call to os.Exit(1).
+func Fatal(msg string, a ...interface{}) {
+	fmt.Fprint(os.Stderr, Fatalf(msg, a...))
+	os.Exit(1)
+}