initial commit

cli.go

@@ -0,0 +1,65 @@
+package cli
+
+import (
+	"fmt"
+	"os"
+
+	"path/filepath"
+
+	"git.sr.ht/~sircmpwn/getopt"
+)
+
+var undef = "(undefined)"
+var program = undef
+var version = undef
+var progname = undef
+
+func Init(prog, ver string) {
+	program = prog
+	version = ver
+	progname = filepath.Base(os.Args[0])
+}
+
+func Usage(args string) {
+	fmt.Fprintf(os.Stderr, "usage: %s %s", progname, args)
+	os.Exit(1)
+}
+
+func Version() {
+	fmt.Printf("%s version %s\n", program, version)
+	os.Exit(0)
+}
+
+func Warn(format string, args ...any) {
+	fmt.Fprintf(os.Stderr, "%s: %s\n",
+		progname, fmt.Sprintf(format, args...))
+}
+
+func Die(format string, args ...any) {
+	Warn(format, args...)
+	os.Exit(1)
+}
+
+func Fail(err error) {
+	Die("%s", err.Error())
+}
+
+func Bool(name string, value bool, usage string) *bool {
+	return getopt.Bool(name, value, usage)
+}
+
+func Int(name string, value int, usage string) *int {
+	return getopt.Int(name, value, usage)
+}
+
+func Uint(name string, value uint, usage string) *uint {
+	return getopt.Uint(name, value, usage)
+}
+
+func String(name, value, usage string) *string {
+	return getopt.String(name, value, usage)
+}
+
+func Parse() error {
+	return getopt.Parse()
+}