Initial commit

help.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"sort"
+	"strings"
+)
+
+func help() {
+	if !arguments.GetBool("h", "help", false) {
+		return
+	}
+
+	info("  __  __              _")
+	info(" / _|/ _|            | |")
+	info("| |_| |___      _____| |__  _ __")
+	info("|  _|  _\\ \\ /\\ / / _ \\ '_ \\| '_ \\")
+	info("| | | |  \\ V  V /  __/ |_) | |_) |")
+	info("|_| |_|   \\_/\\_/ \\___|_.__/| .__/")
+	info("                           | |")
+	info("                    %s |_|", Version)
+
+	info("\nffwebp -i <input> [output] [options]")
+
+	var max int
+
+	for name := range options {
+		if len(name) > max {
+			max = len(name)
+		}
+	}
+
+	var formatted []string
+
+	for name, help := range options {
+		formatted = append(formatted, fmt.Sprintf(" - %-*s: %s", max, name, help))
+	}
+
+	sort.Strings(formatted)
+
+	info(strings.Join(formatted, "\n"))
+
+	info("\nInput formats:  %s", strings.Join(InputFormats, ", "))
+	info("Output formats: %s", strings.Join(OutputFormats, ", "))
+
+	os.Exit(0)
+}