use tinyflags

go.mod

@@ -1,14 +1,13 @@
 module github.com/containeroo/never
 
-go 1.24.2
+go 1.24.4
 
 toolchain go1.24.5
 
 require (
-	github.com/containeroo/dynflags v0.1.1
 	github.com/containeroo/httputils v0.0.1
 	github.com/containeroo/resolver v0.1.0
-	github.com/spf13/pflag v1.0.7
+	github.com/containeroo/tinyflags v0.0.26
 	github.com/stretchr/testify v1.10.0
 	golang.org/x/net v0.42.0
 	golang.org/x/sync v0.16.0

go.sum

@@ -1,17 +1,15 @@
-github.com/containeroo/dynflags v0.1.1 h1:p6039AhBuKjfeylNwQwlQVsCEgufJDgFncrtCQmrjKE=
-github.com/containeroo/dynflags v0.1.1/go.mod h1:YmSfpL9trViFWdXOz+RUXQMTFiUBkcOeVajzoh+rMVw=
 github.com/containeroo/httputils v0.0.1 h1:W9SbW6nbmnGgaEOXRH5nY9ZwLarBo3+FLUCx6EtS2mc=
 github.com/containeroo/httputils v0.0.1/go.mod h1:TrmDptapH6SBe6CeHFWY2kxy63O/9ZWBWrLKpc2SFjI=
 github.com/containeroo/resolver v0.1.0 h1:2QGuMeY9H1T6GE53zPCnM3Zgpp/4XtGjN0eBSR8epSs=
 github.com/containeroo/resolver v0.1.0/go.mod h1:98QSZmbWP7A2YR2EU2SJZe34iFPKh2SDI9zJr2vO+Z8=
+github.com/containeroo/tinyflags v0.0.26 h1:iEDu1sl5I13zgqYK6E6eKDVfNR7uldps38lpBqdTjD4=
+github.com/containeroo/tinyflags v0.0.26/go.mod h1:eiIeqRE1uTvO0n4oVkA27oQuKVBj46Rm+TiuNv5lT60=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0t5Ec4=
 github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/spf13/pflag v1.0.7 h1:vN6T9TfwStFPFM5XzjsvmzZkLuaLX+HS+0SeFLRgU6M=
-github.com/spf13/pflag v1.0.7/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=

internal/app/run.go

@@ -9,10 +9,11 @@ import (
 	"os/signal"
 	"syscall"
 
-	"github.com/containeroo/never/internal/config"
 	"github.com/containeroo/never/internal/factory"
+	"github.com/containeroo/never/internal/flag"
 	"github.com/containeroo/never/internal/logging"
 	"github.com/containeroo/never/internal/wait"
+	"github.com/containeroo/tinyflags"
 	"golang.org/x/sync/errgroup"
 )
 
@@ -23,16 +24,18 @@ func Run(ctx context.Context, version string, args []string, output io.Writer) e
 	defer cancel()
 
 	// Parse command-line flags
-	parsedFlags, err := config.ParseFlags(args, version)
+	flags, err := flag.ParseFlags(args, version)
 	if err != nil {
-		if config.IsHelpRequested(err, output) {
-			return nil
+		if tinyflags.IsHelpRequested(err) || tinyflags.IsVersionRequested(err) {
+			fmt.Fprint(output, err.Error()) // nolint:errcheck
+			os.Exit(0)
 		}
+
 		return fmt.Errorf("configuration error: %w", err)
 	}
 
 	// Initialize target checkers
-	checkers, err := factory.BuildCheckers(parsedFlags.DynFlags, parsedFlags.DefaultCheckInterval)
+	checkers, err := factory.BuildCheckers(flags.DynamicGroups, flags.DefaultCheckInterval)
 	if err != nil {
 		return fmt.Errorf("failed to initialize target checkers: %w", err)
 	}

internal/app/run_test.go

@@ -108,7 +108,7 @@ func TestRunConfigErrorUnsupportedCheckType(t *testing.T) {
 	err := Run(ctx, version, args, &output)
 
 	assert.Error(t, err)
-	assert.EqualError(t, err, "configuration error: flag parsing error: unknown flag: --target.unsupported.name")
+	assert.EqualError(t, err, "configuration error: unknown dynamic group: target")
 }
 
 func TestRunConfigErrorInvalidHeaders(t *testing.T) {
@@ -149,24 +149,5 @@ func TestRunParseError(t *testing.T) {
 	err := Run(ctx, version, args, &output)
 
 	assert.Error(t, err)
-	assert.EqualError(t, err, "configuration error: flag parsing error: unknown flag: --invalid")
-}
-
-func TestRunShowVersion(t *testing.T) {
-	t.Parallel()
-
-	args := []string{
-		"--http.invalidheaders.name=TestService",
-		"--http.invalidheaders.address=http://localhost:8080",
-		"--version",
-	}
-
-	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
-	defer cancel()
-
-	var output bytes.Buffer
-
-	err := Run(ctx, version, args, &output)
-
-	assert.NoError(t, err)
+	assert.EqualError(t, err, "configuration error: unknown flag: --invalid")
 }