args... still needs charset minimums (how?)

cmd/pwgen/args.go

@@ -0,0 +1,17 @@
+package main
+
+// Arguments contains the invocation arguments.
+type Arguments struct {
+	NoAlpha       bool `short:"a" long:"disable-alpha" description:"If specified, do NOT include the Alphabetical (letter) charset."`
+	NoNum         bool `short:"n" long:"disable-num" description:"If specified, do NOT include the Numerical (number) charset."`
+	NoSymbols     bool `short:"s" long:"disable-symbols" description:"If specified, do NOT include the Simple Symbols charset."`
+	ExtendSymbols bool `short:"S" long:"enable-extended-symbols" description:"If specified, include the Extended Symbols charset (these characters may cause issues in some applications)."`
+	NumUpper      uint `short:"u" long:"count-upper" description:"The number of minimum uppercase characters. If not specified, this is random (if in the charset)."`
+	NumLower      uint `short:"U" long:"count-lower" description:"The number of minimum lowercase characters. If not specified, this is random (if in the charset)."`
+	NumSymbols    uint `short:"y" long:"count-symbols" description:"The number of minimum simple symbol characters. If not specified, this is random (if in the charset)."`
+	NumExtended   uint `short:"Y" long:"count-extended" description:"The number of minimum extended symbol characters. If not specified, this is random (if in the charset)."`
+	DisableChars  uint `short:"d" long:"disable-chars" description:"If specified, this string of chars should be explicitly excluded from the charset(s)."`
+	MinLen        uint `short:"l" long:"min-length" default:"16" description:"The minimum length for passwords; use 0 for no minimum limit. Set this to the same as -L/--max-length to use a fixed length."`
+	MaxLen        uint `short:"L" long:"max-length" default:"64" description:"The maximum length for passwords; use 0 for no maximum limit (this is hard-capped to 256 for performance reasons). Set this to the same as -l/--min-length for a fixed length. Must be >= -l/--min-length."`
+	Count         uint `short:"c" long:"count" default:"1" description:"The number of passwords to generate."`
+}

cmd/pwgen/main.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/jessevdk/go-flags"
+	"r00t2.io/pwgen/pwgenerator"
+)
+
+var a Arguments
+
+func main() {
+
+	var err error
+	var genOpts *pwgenerator.GenOpts
+
+	if _, err = flags.Parse(&a); err != nil {
+		switch flagsErr := err.(type) {
+		case *flags.Error:
+			if flagsErr.Type == flags.ErrHelp {
+				os.Exit(0)
+			}
+			log.Panicln(err)
+		default:
+			log.Panicln(err)
+		}
+	}
+
+	genOpts = &pwgenerator.GenOpts{
+		Alpha:           !a.NoAlpha,
+		Numeric:         !a.NoNum,
+		Symbols:         !a.NoSymbols,
+		ExtendedSymbols: a.ExtendSymbols,
+		CountUpper:      a.NumUpper,
+		CountLower:      a.NumLower,
+		CountSymbols:    a.NumSymbols,
+		CountExtended:   a.NumExtended,
+		DisabledChars:   nil,
+		LengthMin:       a.MinLen,
+		LengthMax:       a.MaxLen,
+		Count:           a.Count,
+	}
+
+	fmt.Printf("%#v\n", a)
+	fmt.Printf("%#v\n", genOpts)
+
+}