🔀 Merge branch 'release/1.0.0' into stable

🔖 Bump version just to publish example

.golangci.yaml

@@ -0,0 +1,39 @@
+linters:
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - staticcheck
+    - unused
+    - copyloopvar
+    - dupl
+    - err113
+    - errname
+    - exptostd
+    - fatcontext
+    - funlen
+    - gocognit
+    - goconst
+    - gocritic
+    - gocyclo
+    - godot
+    - godox
+    - gosec
+    - perfsprint
+    - testifylint
+
+linters-settings:
+  testifylint:
+    enable-all: true
+    disable:
+      - require-error
+  gocognit:
+    min-complexity: 5
+  gocyclo:
+    min-complexity: 5
+  gocritic:
+    enable-all: true
+    settings:
+      hugeParam:
+        sizeThreshold: 255

CHANGELOG.md

@@ -1,37 +1,111 @@
 # Changelog
 
-### [0.2.0] - 2025-03-14
+### [1.0.0] - 2025-03-31 - 🚀 Stable release!
 
-- Add `IncrementalFormat`* Generators
+#### Support
-- Add `Slug`* Generators
+
-- Add `WithOriginalSlug`* Options
+- 📝 Vastly improved [go docs](https://pkg.go.dev/codeberg.org/danjones000/nomino).
-- Change signature of `Generator` function
+- 📝 Fill out README with examples and links.
+
+#### Tools
+
+- 🛠 Replace all linting with golangci-lint
+
+#### Code quality
+
+- 🚨 A bunch of small improvements from new linter
+
+### [0.5.0] - 2025-03-19 - ✨ Different types of UUIDs
+
+#### Features
+
+- ✨ Allow for different types of UUIDs in the UUID `Generator`
+- ✨ `Config.AddOptions` method
+- ✨ `Generator.MakeWithConfig` method
+
+#### Support
+
+- 📝 Some better examples
+
+### [0.4.0] - 2025-03-15 - ✨ More Generators, and `Generator.Make` method
+
+#### Features
+
+- ✨ Add Random Generator
+- ✨ Add Make method to Generator
+- ✨ Add MultiGeneratorRandomOrder
+
+#### Changes
+
+- 💔 Breaking changes: Replace HashType with Hasher: This supports all crypto.Hash
+
+#### Support
+
+- 📝 Add some missing doc comments
+
+### [0.3.0] - 2025-03-14 - ♻️ Refactor multiple Generators into one
+
+#### Features
+
+- ♻️ Simplified multiple `Generator` functions to single function with options
+- 📝 Added a lot of examples for docs
+- ✨ Can add extra `Option`s to `Make`
+
+Multiple breaking changes around Generators.
+
+#### Bugs
+
+- 🐛 Fixed date formats
+
+### [0.2.1] - 2025-03-14 - ✨ New Hash Generator
+
+#### Features
+
+- ✨ Add Hash Generator
+
+#### Dev Tooling
+
+- 🛠 Added a task to serve docs
+- 🛠 Added tasts to check code complexity
+
+#### Miscellaneous
+
+- 💚 Fixed some `go vet` complaints
+
+### [0.2.0] - 2025-03-14 - ✨ New `Generator`s
+
+#### Features
+
+- ✨ Add `IncrementalFormat`* Generators
+- ✨ Add `Slug`* Generators
+- ✨ Add `WithOriginalSlug`* Options
+- 💔 Change signature of `Generator` function
 
 Note that this last change **is** a breaking change from 0.0.3, but only for custom Generators.
 
-## [0.0.3] - 2025-03-11
+## [0.0.3] - 2025-03-11 - ✨ `WithSeparator`
 
 ### Features
 
-- Added `WithSeparator` to allow for different separators between the parts of the generated filename.
+- ✨ Added `WithSeparator` to allow for different separators between the parts of the generated filename.
 
-## [0.0.2] - 2025-03-11
+## [0.0.2] - 2025-03-11 - 🐛 Bugfix
 
 Bugfix release
 
 ### Fixes
 
-- Extension being ignored. Original included twice.
+- 🐛 Extension being ignored. Original included twice.
 
-## [0.0.1] - 2025-03-10
+## [0.0.1] - 2025-03-10 - 🚀 Initial Release
 
 Initial Release! Hope you like it!
 
 ### Added
 
-- nomino.Make
+- ✨ `nomino.Make``
-- nomino.Config
+- ✨ `nomino.Config`
-- nomino.Generator
+- ✨ `nomino.Generator`
     + We needs more of these until I'm ready
-- Lots of tests!
+- ✅ Lots of tests!
 

README.md

@@ -4,8 +4,80 @@ The purpose of nomino is to generate (probably random) filenames, for example, i
 
 It takes a lot of inspiration (although no actual code) from [Onym](https://github.com/Blaspsoft/onym).
 
-## TODO
+Make sure to check out the [official documentation][docs].
 
-I'll fill this out more in depth later.
+## Installation
 
-For now, check [official documentation](https://pkg.go.dev/codeberg.org/danjones000/nomino).
+Add `codeberg.org/danjones000/nomino` to your project. You can do `go get codeberg.org/danjones000/nomino`, or simply add it to an import and run `go mod tidy`.
+
+But, you probably already know this.
+
+## Usage
+
+There are **a lot** of examples in the [official documentation][examples]. Take a look through these to get an idea.
+
+The main concept in `nomino` is the [Generator][]. The simplest way to generate a random filename, is to use the [Generator][] directly, in this way:
+
+```go
+import (
+    "fmt"
+    "codeberg.org/danjones000/nomino"
+)
+
+func main() {
+    name, _ := nomino.Random().Make()
+    fmt.Println(name) // Du3Sfh8p.txt
+}
+```
+
+The second argument is an error. Most of the generators are always successful, and that error will be `nil`, but you should check the errors if you're not sure.
+
+The second way to generate a new filename is using the [Make][] function.
+
+```go
+import (
+    "fmt"
+    "codeberg.org/danjones000/nomino"
+)
+
+func main() {
+    config := nomino.NewConfig(nomino.WithGenerator(nomino.Random()))
+    name, _ := nomino.Make(config)
+    fmt.Println(name) // Du3Sfh8p.txt
+}
+```
+
+Although in these examples, `nomino.Make` is more verbose, it can be beneficial to using that function if you have some customizations to how you generate the filenames.
+
+### Configuration
+
+The [Config][] allows you to customize how the generated filename works with various [Options][Option]. The [options][Option] allows you to customize things like [adding a prefix](https://pkg.go.dev/codeberg.org/danjones000/nomino#WithPrefix), or changing the [extension](https://pkg.go.dev/codeberg.org/danjones000/nomino#WithExtension) of the generated filename (by default, it uses `.txt`).
+
+Have a look at [all the Options][Option].
+
+### Generator
+
+The [Generator][] is the piece that returns the "random" portion of the generated filename, although, it doesn't actually have to be random.
+
+Here are the built-in [Generators][Generator]:
+
+- [UUID](https://pkg.go.dev/codeberg.org/danjones000/nomino#UUID) generates a UUID. This is the default if none is specified.
+- [Random](https://pkg.go.dev/codeberg.org/danjones000/nomino#Random) generates a random string. By default, it's 8 characters long, but can be whatever length you provide.
+- [Incremental](https://pkg.go.dev/codeberg.org/danjones000/nomino#Incremental) will generate just a series of integers, starting at 0.
+- [Timestamp](https://pkg.go.dev/codeberg.org/danjones000/nomino#Timestamp) generates a string from the current time. It will look like "2009-11-10T23-00-00+0000.txt", although this can be customized.
+- Both [Slug](https://pkg.go.dev/codeberg.org/danjones000/nomino#Slug) and [Hash](https://pkg.go.dev/codeberg.org/danjones000/nomino#Hash) work on the original name provided by [WithOriginal](https://pkg.go.dev/codeberg.org/danjones000/nomino#WithOriginal). Slug generats a slug from the name, while Hash hashes it. By default, it uses MD5.
+
+You can also use multiple generators, either [in order](https://pkg.go.dev/codeberg.org/danjones000/nomino#MultiGeneratorInOrder), or [in a random order](https://pkg.go.dev/codeberg.org/danjones000/nomino#MultiGeneratorRandomOrder).
+
+Finally, you can create a [custom generator](https://pkg.go.dev/codeberg.org/danjones000/nomino#example-WithGenerator-CustomGenerator) as well.
+
+## RTFM (Read the fabulous manual)
+
+[Official docs][docs], especially the [examples][]. Especially check out the [full example](https://pkg.go.dev/codeberg.org/danjones000/nomino#example-package), which includes how to use a global configuration.
+
+[docs]: https://pkg.go.dev/codeberg.org/danjones000/nomino
+[examples]: https://pkg.go.dev/codeberg.org/danjones000/nomino#pkg-examples
+[Generator]: https://pkg.go.dev/codeberg.org/danjones000/nomino#Generator
+[Config]: https://pkg.go.dev/codeberg.org/danjones000/nomino#Config
+[Option]: https://pkg.go.dev/codeberg.org/danjones000/nomino#Option
+[Make]: https://pkg.go.dev/codeberg.org/danjones000/nomino#Make

Taskfile.yml

@@ -5,7 +5,7 @@ tasks:
     cmds:
       - task: fmt
       - task: test
-      - task: build
+      - task: lint
 
   fmt:
     desc: Format go code
@@ -22,45 +22,16 @@ tasks:
     cmds:
       - go generate ./...
 
-  vet:
-    desc: Vet go code
-    sources:
-      - '**/*.go'
-    cmds:
-      - go vet ./...
-
-  critic:
-    desc: Critique go code
-    sources:
-      - '**/*.go'
-    cmds:
-      - gocritic check ./...
-
-  staticcheck:
-    desc: Static check go code
-    sources:
-      - '**/*.go'
-    cmds:
-      - staticcheck ./...
-
-  vuln:
-    desc: Check for vulnerabilities
-    sources:
-      - '**/*.go'
-    cmds:
-      - govulncheck ./...
-
   lint:
     desc: Do static analysis
-    deps:
+    sources:
-      - vet
+      - '**/*.go'
-      - critic
+    cmds:
-      - staticcheck
+      - golangci-lint run
-      - vuln
 
   test:
     desc: Run unit tests
-    deps: [fmt, vet]
+    deps: [fmt]
     sources:
       - '**/*.go'
     generates:
@@ -83,4 +54,9 @@ tasks:
     deps: [coverage-report]
     cmds:
       - ip addr list | grep inet
-      - php -S 0.0.0.0:3265 -t build
+      - php -S 0.0.0.0:3434 -t build
+
+  serve-docs:
+    desc: Serve the current docs
+    cmds:
+      - godoc -http=0.0.0.0:3434 -play

config.go

@@ -1,5 +1,6 @@
 package nomino
 
+// Config controls how the generatred filename is created.
 type Config struct {
 	original  string
 	prefix    string
@@ -9,14 +10,25 @@ type Config struct {
 	generator Generator
 }
 
+// NewConfig returns a new [Config] with each [Option] specified.
+// With no Options, the Config uses an extension of .txt, a separator
+// of _, and the [UUID] [Generator].
 func NewConfig(options ...Option) Config {
 	conf := Config{
 		extension: ".txt",
 		separator: "_",
-		generator: uuidGen,
+		generator: UUID(nil),
 	}
 	for _, opt := range options {
 		opt(&conf)
 	}
 	return conf
 }
+
+// AddOptions creates a new [Config] with each [Option] added.
+func (c Config) AddOptions(options ...Option) Config {
+	for _, opt := range options {
+		opt(&c)
+	}
+	return c
+}

config_test.go

@@ -20,3 +20,12 @@ func TestNewConfWithOpts(t *testing.T) {
 	assert.Equal(t, "", c.extension)
 	assert.Equal(t, "foobar", c.prefix)
 }
+
+func TestConfAddOpts(t *testing.T) {
+	c := Config{original: "hi"}
+	c2 := c.AddOptions(WithOriginalSlug("Hello, my dear"), WithPrefix("yo"))
+	assert.Equal(t, "", c.prefix)
+	assert.Equal(t, "hi", c.original)
+	assert.Equal(t, "hello-my-dear", c2.original)
+	assert.Equal(t, "yo", c2.prefix)
+}

examples_test.go

@@ -0,0 +1,60 @@
+package nomino_test
+
+import (
+	"fmt"
+
+	"codeberg.org/danjones000/nomino"
+)
+
+// Define a global Config.
+func NominoConfig() nomino.Config {
+	return nomino.NewConfig(
+		nomino.WithSeparator("-"),
+		nomino.WithPrefix("upload"),
+		nomino.WithGenerator(nomino.UUID(
+			nomino.UUIDv7,
+		)),
+	)
+}
+
+// HandleImgUploads generates new filenames for images with a png extension.
+func HandleImgUploads(orig string) string {
+	// Here, we use nomino.Make function to generate the filename.
+	// We use our global config, and add in a few extra Options specific to this.
+	newName, _ := nomino.Make(
+		NominoConfig(),
+		nomino.WithExtension("png"),
+		nomino.WithOriginalSlug(orig),
+	)
+
+	return newName
+}
+
+// HandleVidUploads generates a new filename for videos.
+// We ignore the original filename and use a timestamp for the generated part
+// with a webm extension.
+func HandleVidUploads() string {
+	// Because we're using a different Generator, we chose to use the Make method on the Generator.
+	// We add in additional Options with the `AddOptions` method on the `Config`
+	newName, _ := nomino.Timestamp(nomino.TimestampUTC()).
+		MakeWithConfig(NominoConfig().AddOptions(
+			nomino.WithExtension("webm"),
+		))
+	return newName
+}
+
+// This example shows how to use nomino.
+func Example() {
+	// Pretend we have an image upload
+	filename := "George"
+	uploadImgName := HandleImgUploads(filename)
+
+	// Upload to storage
+	fmt.Println(uploadImgName)
+
+	// New Video Upload
+	uploadVidName := HandleVidUploads()
+
+	// Upload to storage
+	fmt.Println(uploadVidName)
+}

gen_file.go

@@ -0,0 +1,75 @@
+package nomino
+
+import (
+	"crypto"
+	"encoding/hex"
+	"errors"
+	"hash"
+
+	"github.com/gosimple/slug"
+)
+
+// ErrMissingOriginal is the error returned by [Slug] if there is no filename.
+var ErrMissingOriginal = errors.New("missing original filename")
+
+func getOriginal(c *Config) (string, error) {
+	if c.original == "" {
+		return "", ErrMissingOriginal
+	}
+	name := c.original
+	c.original = ""
+	return name, nil
+}
+
+// Slug generates a name from the original filename.
+// When this is used, the original filename will be removed from the final filename.
+// If a language is specified, that may affect the resulting slug.
+func Slug(lang ...string) Generator {
+	ret := slug.Make
+	if len(lang) > 0 {
+		ret = func(in string) string {
+			return slug.MakeLang(in, lang[0])
+		}
+	}
+	return func(c *Config) (string, error) {
+		name, err := getOriginal(c)
+		return ret(name), err
+	}
+}
+
+// HashingFunc is a function that generates a [hash.Hash].
+type HashingFunc func() hash.Hash
+
+// New allows [HashingFunc] to be used as a [Hasher].
+func (hf HashingFunc) New() hash.Hash {
+	return hf()
+}
+
+// Hasher is a type returns a [hash.Hash].
+// All [crypto.Hash] may be used.
+type Hasher interface {
+	New() hash.Hash
+}
+
+// ErrInvalidHash is returned by the [Hash] [Generator] when an invalid [Hasher] is passed.
+var ErrInvalidHash = errors.New("invalid hash type")
+
+// Hash generates a name from a hash of the filename.
+// When this is used, the original filename will be removed from the final filename.
+func Hash(h Hasher) Generator {
+	if h == nil {
+		h = crypto.MD5
+	}
+	return func(c *Config) (string, error) {
+		if h == crypto.MD5SHA1 {
+			return "", ErrInvalidHash
+		}
+		name, err := getOriginal(c)
+		if err != nil {
+			return "", err
+		}
+		hs := h.New()
+		hs.Write([]byte(name))
+		return hex.EncodeToString(hs.Sum(nil)), nil
+	}
+}

gen_file_examples_test.go

@@ -0,0 +1,56 @@
+package nomino_test
+
+import (
+	"crypto"
+	"crypto/hmac"
+	"fmt"
+	"hash"
+
+	"codeberg.org/danjones000/nomino"
+)
+
+func ExampleSlug() {
+	str, _ := nomino.Slug().Make(nomino.WithOriginal("My name is Jimmy"))
+	fmt.Println(str)
+
+	// Output: my-name-is-jimmy.txt
+}
+
+func ExampleSlug_withLang() {
+	str, _ := nomino.Slug("de").
+		Make(nomino.WithOriginal("Diese & Dass"))
+	fmt.Println(str)
+
+	// Output: diese-und-dass.txt
+}
+
+func ExampleHash_mD5() {
+	str, _ := nomino.Hash(crypto.MD5).
+		Make(nomino.WithOriginal("foobar"))
+	fmt.Println(str)
+	// Output: 3858f62230ac3c915f300c664312c63f.txt
+}
+
+func ExampleHash_sHA1() {
+	str, _ := nomino.Hash(crypto.SHA1).
+		Make(nomino.WithOriginal("foobar"))
+	fmt.Println(str)
+	// Output: 8843d7f92416211de9ebb963ff4ce28125932878.txt
+}
+
+func ExampleHash_sHA256() {
+	str, _ := nomino.Hash(crypto.SHA256).
+		Make(nomino.WithOriginal("foobar"))
+	fmt.Println(str)
+	// Output: c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2.txt
+}
+
+func ExampleHashingFunc_hMAC() {
+	var hasher nomino.HashingFunc = func() hash.Hash {
+		return hmac.New(crypto.SHA1.New, []byte("hello"))
+	}
+	g := nomino.Hash(hasher)
+	str, _ := g.Make(nomino.WithOriginal("foobar"))
+	fmt.Println(str)
+	// Output: 85f767c284c80a3a59a9635194321d20dd90f31b.txt
+}

gen_file_test.go

@@ -0,0 +1,37 @@
+package nomino
+
+import (
+	"crypto"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSlugMissingFilename(t *testing.T) {
+	conf := NewConfig(WithGenerator(Slug()))
+	st, err := conf.generator(&conf)
+	assert.Zero(t, st)
+	assert.ErrorIs(t, err, ErrMissingOriginal)
+}
+
+func TestSlugRemovesOriginal(t *testing.T) {
+	conf := NewConfig(WithGenerator(Slug()), WithOriginal("Hello, World"))
+	st, err := conf.generator(&conf)
+	assert.Zero(t, conf.original)
+	assert.Equal(t, "hello-world", st)
+	assert.NoError(t, err)
+}
+
+func TestHashBadHash(t *testing.T) {
+	conf := NewConfig(WithOriginal("foobar"), WithGenerator(Hash(crypto.MD5SHA1)))
+	st, err := conf.generator(&conf)
+	assert.Equal(t, "", st)
+	assert.ErrorIs(t, err, ErrInvalidHash)
+}
+
+func TestHashMissingOriginal(t *testing.T) {
+	conf := NewConfig(WithGenerator(Hash(nil)))
+	st, err := conf.generator(&conf)
+	assert.Equal(t, "", st)
+	assert.ErrorIs(t, err, ErrMissingOriginal)
+}

gen_int.go

@@ -0,0 +1,55 @@
+package nomino
+
+import (
+	"fmt"
+	"strconv"
+)
+
+type incConf struct {
+	start int
+	step  int
+	cb    func(int) string
+}
+
+// IncrementalOption sets an option for the [Incremental] [Generator].
+type IncrementalOption func(c *incConf)
+
+// Incremental generates a name that is a series of integers.
+// By default it begins at 0 and increments by 1 each time.
+func Incremental(opts ...IncrementalOption) Generator {
+	c := incConf{step: 1, cb: strconv.Itoa}
+	for _, opt := range opts {
+		opt(&c)
+	}
+
+	next := c.start
+	return func(*Config) (string, error) {
+		out := c.cb(next)
+		next += c.step
+		return out, nil
+	}
+}
+
+// IncrementalStart sets the starting integer for [Incremental].
+func IncrementalStart(start int) IncrementalOption {
+	return func(c *incConf) {
+		c.start = start
+	}
+}
+
+// IncrementalStepsets the step by which [Incremental] increases with each invocation.
+func IncrementalStep(step int) IncrementalOption {
+	return func(c *incConf) {
+		c.step = step
+	}
+}
+
+// IncrementalFormatsets the format for the number generated by [Incremental].
+// It will be formatted with Printf. This is mostly likely useful with a format like "%02d".
+func IncrementalFormat(format string) IncrementalOption {
+	return func(c *incConf) {
+		c.cb = func(i int) string {
+			return fmt.Sprintf(format, i)
+		}
+	}
+}

gen_int_examples_test.go

@@ -0,0 +1,121 @@
+package nomino_test
+
+import (
+	"fmt"
+
+	"codeberg.org/danjones000/nomino"
+)
+
+func ExampleIncremental() {
+	conf := nomino.NewConfig(
+		nomino.WithPrefix("foo"),
+		nomino.WithGenerator(nomino.Incremental()),
+	)
+
+	str, _ := nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	// Output:
+	// foo_0.txt
+	// foo_1.txt
+	// foo_2.txt
+}
+
+func ExampleIncrementalStart() {
+	conf := nomino.NewConfig(
+		nomino.WithPrefix("foo"),
+		nomino.WithGenerator(nomino.Incremental(
+			nomino.IncrementalStart(42),
+		)),
+	)
+
+	str, _ := nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	// Output:
+	// foo_42.txt
+	// foo_43.txt
+	// foo_44.txt
+}
+
+func ExampleIncrementalStep() {
+	conf := nomino.NewConfig(
+		nomino.WithPrefix("foo"),
+		nomino.WithGenerator(nomino.Incremental(
+			nomino.IncrementalStep(2),
+		)),
+	)
+
+	str, _ := nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	// Output:
+	// foo_0.txt
+	// foo_2.txt
+	// foo_4.txt
+}
+
+func ExampleIncremental_withStartAndStep() {
+	conf := nomino.NewConfig(
+		nomino.WithPrefix("foo"),
+		nomino.WithGenerator(nomino.Incremental(
+			nomino.IncrementalStart(42),
+			nomino.IncrementalStep(2),
+		)),
+	)
+
+	str, _ := nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	// Output:
+	// foo_42.txt
+	// foo_44.txt
+	// foo_46.txt
+}
+
+func ExampleIncrementalFormat() {
+	conf := nomino.NewConfig(
+		nomino.WithPrefix("foo"),
+		nomino.WithGenerator(nomino.Incremental(
+			nomino.IncrementalFormat("%03d"),
+		)),
+	)
+
+	str, _ := nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	str, _ = nomino.Make(conf)
+	fmt.Println(str)
+
+	// Output:
+	// foo_000.txt
+	// foo_001.txt
+	// foo_002.txt
+}

gen_rand.go

@@ -0,0 +1,91 @@
+package nomino
+
+import (
+	"crypto/rand"
+	"strings"
+
+	"github.com/deatil/go-encoding/base62"
+	"github.com/google/uuid"
+)
+
+// UUIDer is an interface for generating UUIDs, by the [UUID] [Generator].
+// It is recommended that you use either the [UUIDv4] or [UUIDv7] variables.
+type UUIDer interface {
+	UUID() (uuid.UUID, error)
+}
+
+// UUIDFunc is a function that generates a UUID.
+type UUIDFunc func() (uuid.UUID, error)
+
+// UUID allows [UUIDFunc] to be used as a [UUIDer].
+func (u UUIDFunc) UUID() (uuid.UUID, error) {
+	return u()
+}
+
+var (
+	// UUIDv1. You probably don't want to use this. It is included for completeness sake.
+	UUIDv1 = UUIDFunc(uuid.NewUUID)
+	// UUIDv4 is the default.
+	UUIDv4 = UUIDFunc(uuid.NewRandom)
+	// UUIDv6 is primarily a replacement for UUIDv1. You probably should use 4 or 7.
+	UUIDv6 = UUIDFunc(uuid.NewV6)
+	// UUIDv7 should be used if you want it sortable by time.
+	UUIDv7 = UUIDFunc(uuid.NewV7)
+)
+
+// UUID generates a UUID. If nil is passed as an argument,
+// a UUIDv4 is generated.
+func UUID(u UUIDer) Generator {
+	if u == nil {
+		u = UUIDv4
+	}
+	return func(*Config) (string, error) {
+		uu, err := u.UUID()
+		if err != nil {
+			return "", err
+		}
+		return uu.String(), nil
+	}
+}
+
+type randConf struct {
+	length int
+}
+
+// RandomOption is an option for the [Random] [Generator].
+type RandomOption func(*randConf)
+
+// RandomLength controls the length of the string generated by [Random].
+func RandomLength(length int) RandomOption {
+	return func(c *randConf) {
+		c.length = length
+	}
+}
+
+func getRandomBytes(l int) []byte {
+	key := make([]byte, l)
+	_, _ = rand.Read(key)
+	e := base62.StdEncoding.Encode(key)
+	return e[:l]
+}
+
+func fillBuffer(buff *strings.Builder, length int) {
+	for buff.Len() < length {
+		buff.Write(getRandomBytes(length - buff.Len()))
+	}
+}
+
+// Random generates a random string containing the characters A-Za-z0-9.
+// By default, it will be eight characters long.
+func Random(opts ...RandomOption) Generator {
+	c := randConf{8}
+	for _, opt := range opts {
+		opt(&c)
+	}
+	return func(*Config) (string, error) {
+		var buff strings.Builder
+		buff.Grow(c.length)
+		fillBuffer(&buff, c.length)
+		return buff.String(), nil
+	}
+}

gen_rand_examples_test.go

@@ -0,0 +1,40 @@
+package nomino_test
+
+import (
+	"fmt"
+
+	"codeberg.org/danjones000/nomino"
+)
+
+func ExampleUUID() {
+	gen := nomino.UUID(nil)
+
+	str, _ := gen.Make()
+	fmt.Println(str)
+
+	str, _ = gen.Make()
+	fmt.Println(str)
+}
+
+func ExampleUUID_v7() {
+	gen := nomino.UUID(nomino.UUIDv7)
+
+	str, _ := gen.Make()
+	fmt.Println(str)
+
+	str, _ = gen.Make()
+	fmt.Println(str)
+
+	str, _ = gen.Make()
+	fmt.Println(str)
+}
+
+func ExampleRandom() {
+	str, _ := nomino.Random().Make()
+	fmt.Println(str)
+}
+
+func ExampleRandomLength() {
+	str, _ := nomino.Random(nomino.RandomLength(32)).Make()
+	fmt.Println(str)
+}

gen_rand_test.go

@@ -0,0 +1,41 @@
+package nomino
+
+import (
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestUUID(t *testing.T) {
+	st, err := UUID(nil)(nil)
+	assert.NoError(t, err)
+	_, parseErr := uuid.Parse(st)
+	assert.NoError(t, parseErr)
+}
+
+type badRead struct{}
+
+func (badRead) Read([]byte) (int, error) {
+	return 0, errTest
+}
+
+func TestUUIDFail(t *testing.T) {
+	uuid.SetRand(badRead{})
+	defer uuid.SetRand(nil)
+
+	_, err := UUID(nil)(nil)
+	assert.ErrorIs(t, err, errTest)
+}
+
+func TestRand(t *testing.T) {
+	st, err := Random()(nil)
+	assert.NoError(t, err)
+	assert.Len(t, st, 8)
+}
+
+func TestRandLen(t *testing.T) {
+	st, err := Random(RandomLength(32))(nil)
+	assert.NoError(t, err)
+	assert.Len(t, st, 32)
+}

gen_ts.go

@@ -0,0 +1,59 @@
+package nomino
+
+import "time"
+
+// FileTimestamp is the default format for [Timestamp].
+const FileTimestamp string = "2006-01-02T15-04-05-0700"
+
+// FileTimestampNoTZ is the default format when using the [TimestampUTC] [TimestampOption].
+const FileTimestampNoTZ string = "2006-01-02T15-04-05"
+
+type timestampConf struct {
+	format string
+	ts     time.Time
+	utc    bool
+}
+
+// TimestampOption provides options for the [Timestamp] [Generator].
+type TimestampOption func(c *timestampConf)
+
+// Timestamp generates a a date and time. By default, it uses the current time, and will.
+// be formatted accourding to FileTimestamp.
+func Timestamp(opts ...TimestampOption) Generator {
+	c := timestampConf{format: FileTimestamp, ts: time.Now()}
+	for _, opt := range opts {
+		opt(&c)
+	}
+
+	if c.utc {
+		c.ts = c.ts.UTC()
+	}
+
+	return func(*Config) (string, error) {
+		return c.ts.Format(c.format), nil
+	}
+}
+
+// TimestampFormat sets the format for the generated name.
+// Consult [time.Time.Format] for details on the format.
+func TimestampFormat(format string) TimestampOption {
+	return func(c *timestampConf) {
+		c.format = format
+	}
+}
+
+// TimestampTime sets the time for the generated name.
+// By default, [Timestamp] uses the current time.
+func TimestampTime(t time.Time) TimestampOption {
+	return func(c *timestampConf) {
+		c.ts = t
+	}
+}
+
+// TimestampUTC uses the time in UTC, while also stripping the timezone from the format.
+func TimestampUTC() TimestampOption {
+	return func(c *timestampConf) {
+		c.utc = true
+		c.format = FileTimestampNoTZ
+	}
+}

gen_ts_examples_test.go

@@ -0,0 +1,41 @@
+package nomino_test
+
+import (
+	"fmt"
+	"time"
+
+	"codeberg.org/danjones000/nomino"
+)
+
+func ExampleTimestamp() {
+	gen := nomino.Timestamp()
+	s, _ := gen.Make()
+	fmt.Println(s)
+}
+
+func ExampleTimestampTime() {
+	tz, _ := time.LoadLocation("America/New_York")
+	ts := time.Date(2009, time.January, 20, 12, 5, 0, 0, tz)
+	gen := nomino.Timestamp(nomino.TimestampTime(ts))
+	s, _ := gen.Make()
+	fmt.Println(s)
+	// Output: 2009-01-20T12-05-00-0500.txt
+}
+
+func ExampleTimestampFormat() {
+	tz, _ := time.LoadLocation("America/New_York")
+	ts := time.Date(2009, time.January, 20, 12, 5, 0, 0, tz)
+	gen := nomino.Timestamp(nomino.TimestampTime(ts), nomino.TimestampFormat("2006#01#02<>15|04|05-0700"))
+	s, _ := gen.Make()
+	fmt.Println(s)
+	// Output: 2009#01#20<>12|05|00-0500.txt
+}
+
+func ExampleTimestampUTC() {
+	tz, _ := time.LoadLocation("America/New_York")
+	ts := time.Date(2009, time.January, 20, 12, 5, 0, 0, tz)
+	gen := nomino.Timestamp(nomino.TimestampTime(ts), nomino.TimestampUTC())
+	s, _ := gen.Make()
+	fmt.Println(s)
+	// Output: 2009-01-20T17-05-00.txt
+}

gen_ts_test.go

@@ -0,0 +1,15 @@
+package nomino
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTimestamp(t *testing.T) {
+	n := time.Now()
+	st, err := Timestamp()(nil)
+	assert.NoError(t, err)
+	assert.Equal(t, n.Format(FileTimestamp), st)
+}

generators.go

@@ -2,12 +2,7 @@ package nomino
 
 import (
 	"errors"
-	"fmt"
+	"math/rand"
-	"strconv"
-	"time"
-
-	"github.com/google/uuid"
-	"github.com/gosimple/slug"
 )
 
 // Generator is a function that returns the "random" portion of the returned filename.
@@ -15,14 +10,25 @@ import (
 // for example.
 type Generator func(conf *Config) (string, error)
 
-// WithGenerator sets the specified generator
+// Make allows you to generate a new string directly from a [Generator].
+func (g Generator) Make(opts ...Option) (string, error) {
+	return g.MakeWithConfig(NewConfig(opts...))
+}
+
+// MakeWithConfig allows you to generate a new string directly from a [Generator]
+// with a pre-existing Config.
+func (g Generator) MakeWithConfig(c Config) (string, error) {
+	return Make(c.AddOptions(WithGenerator(g)))
+}
+
+// WithGenerator sets the specified [Generator].
 func WithGenerator(g Generator) Option {
 	return func(c *Config) {
 		c.generator = g
 	}
 }
 
-// ErrMissingGenerators is returned by a multi-generator if no generators are supplied.
+// ErrMissingGenerators is returned by a multi-generator if a [Generator] isn't supplied.
 var ErrMissingGenerators = errors.New("no generators supplied")
 
 func missingGen(*Config) (string, error) {
@@ -30,7 +36,7 @@ func missingGen(*Config) (string, error) {
 }
 
 // MultiGeneratorInOrder allows the use of multiple generators. Each new invokation will use the next generator in turn.
-// If none are passed, the generator will always return ErrMissingGenerators.
+// If none are passed, the generator will always return [ErrMissingGenerators].
 func MultiGeneratorInOrder(gens ...Generator) Generator {
 	if len(gens) == 0 {
 		return missingGen
@@ -48,140 +54,20 @@ func MultiGeneratorInOrder(gens ...Generator) Generator {
 	}
 }
 
-func uuidGen(*Config) (string, error) {
+// MultiGeneratorRandomOrder allows the use of multiple generators. Each new invokation will use one of the generators randomly.
-	u, err := uuid.NewRandom()
+// If none are passed, the generator will always return [ErrMissingGenerators].
-	if err != nil {
+func MultiGeneratorRandomOrder(gens ...Generator) Generator {
-		return "", err
+	if len(gens) == 0 {
+		return missingGen
 	}
-	return u.String(), nil
-}
 
-// UUID generates a UUIDv4.
+	if len(gens) == 1 {
-func UUID() Generator {
+		return gens[0]
-	return uuidGen
-}
-
-// FileTimestamp is the default format for WithTimestamp and WithTime
-const FileTimestamp string = "2006-01-02_03-05-06-0700"
-
-// Timestamp generates a a date and time for the current time.
-// It is formatted accourding to FileTimestamp
-func Timestamp() Generator {
-	return TimestampWithFormat(FileTimestamp)
-}
-
-// TimestampWithFormat generates a date and time for the current time with the supplied format.
-func TimestampWithFormat(f string) Generator {
-	return FormattedTime(time.Now(), FileTimestamp)
-}
-
-// Time generates a date and time for the supplied time.
-// It is formatted accourding to FileTimestamp
-func Time(t time.Time) Generator {
-	return FormattedTime(t, FileTimestamp)
-}
-
-// FormattedTime generates a date and time for the supplied time with the supplied format.
-func FormattedTime(t time.Time, f string) Generator {
-	return func(*Config) (string, error) {
-		return t.Format(f), nil
 	}
-}
 
-// FileTimestampNoTZ is the default format for WithTimestampUTC and WithTimeUTC
-const FileTimestampNoTZ string = "2006-01-02_03-05-06"
-
-// TimestampUTC generates a date and time for the current time in UTC without a timezone in the format.
-func TimestampUTC() Generator {
-	return TimeUTC(time.Now())
-}
-
-// TimeUTC generates a date and time for the supplied time in UTC without a timezone in the format.
-func TimeUTC(t time.Time) Generator {
-	return FormattedTime(t.UTC(), FileTimestampNoTZ)
-}
-
-// Incremental generates a name that is a series of integers starting at 0
-func Incremental() Generator {
-	return IncrementalWithStartAndStep(0, 1)
-}
-
-// IncrementalFormat generates a name that is a series of integers starting at 0, formatted with Printf
-// This is mostly likely useful with a format like "%02d"
-func IncrementalFormat(format string) Generator {
-	return IncrementalFormatWithStartAndStep(0, 1, format)
-}
-
-// IncrementalWithStart generates a name that is a series of integers starting at the specified number
-func IncrementalWithStart(start int) Generator {
-	return IncrementalWithStartAndStep(start, 1)
-}
-
-// IncrementalFormatWithStart generates a name that is a series of integers starting at the specified number, formatted with Printf
-func IncrementalFormatWithStart(start int, format string) Generator {
-	return IncrementalFormatWithStartAndStep(start, 1, format)
-}
-
-// IncrementalWithStep generates a name that is a series of integers, starting at 0, and increasing the specified number each time
-func IncrementalWithStep(step int) Generator {
-	return IncrementalWithStartAndStep(0, step)
-}
-
-// IncrementalFormatWithStep generates a name that is a series of integers, starting at 0, and increasing the specified number each time,
-// formatted with Printf
-func IncrementalFormatWithStep(step int, format string) Generator {
-	return IncrementalFormatWithStartAndStep(0, step, format)
-}
-
-func incrementalHelper(start, step int, cb func(int) string) Generator {
-	next := start
-	return func(*Config) (string, error) {
-		out := cb(next)
-		next += step
-		return out, nil
-	}
-}
-
-// InrementalWithStartAndStep generates a name that is a series of integers, starting at the specified number,
-// and increasing the specified step each time
-func IncrementalWithStartAndStep(start, step int) Generator {
-	return incrementalHelper(start, step, strconv.Itoa)
-}
-
-// IncrementalFormatWithStartAndStep generates a name that is a series of integers, starting at the specified number,
-// and increasing the specified step each time, formatted with Printf
-func IncrementalFormatWithStartAndStep(start, step int, format string) Generator {
-	return incrementalHelper(start, step, func(i int) string {
-		return fmt.Sprintf(format, i)
-	})
-}
-
-// ErrMissingOriginal is the error returned by Slug if there is no filename
-var ErrMissingOriginal = errors.New("missing original filename")
-
-func getOriginal(c *Config) (string, error) {
-	if c.original == "" {
-		return "", ErrMissingOriginal
-	}
-	name := c.original
-	c.original = ""
-	return name, nil
-}
-
-// Slug generates a name from the original filename.
-// When this is used, the original filename will be removed from the final filename.
-func Slug() Generator {
 	return func(c *Config) (string, error) {
-		name, err := getOriginal(c)
+		//nolint:gosec // This is not security sensitive, so a weak number generator is fine.
-		return slug.Make(name), err
+		idx := rand.Int() % len(gens)
-	}
+		return gens[idx](c)
-}
-
-// SlugWithLang generates a name from the original filename, accounting for the given language.
-// When this is used, the original filename will be removed from the final filename.
-func SlugWithLang(lang string) Generator {
-	return func(c *Config) (string, error) {
-		name, err := getOriginal(c)
-		return slug.MakeLang(name, lang), err
 	}
 }

generators_examples_test.go

@@ -1,17 +1,20 @@
-package nomino
+package nomino_test
 
-import "fmt"
+import (
+	"fmt"
 
-func ExampleWithGenerator_custom_generator() {
+	"codeberg.org/danjones000/nomino"
-	gen := func(*Config) (string, error) {
+)
+
+func ExampleWithGenerator_customGenerator() {
+	var gen nomino.Generator = func(*nomino.Config) (string, error) {
 		return "hello", nil
 	}
-	option := WithGenerator(gen)
 
-	str, _ := Make(NewConfig(option))
+	str, _ := gen.Make()
 	fmt.Println(str)
 
-	str, _ = Make(NewConfig(option, WithoutExtension()))
+	str, _ = gen.Make(nomino.WithoutExtension())
 	fmt.Println(str)
 
 	// Output:
@@ -19,145 +22,58 @@ func ExampleWithGenerator_custom_generator() {
 	// hello
 }
 
-func ExampleIncremental() {
+func ExampleGenerator_Make() {
-	conf := NewConfig(WithPrefix("foo"), WithGenerator(Incremental()))
+	g := nomino.Incremental()
+	st, _ := g.Make()
+	fmt.Println(st)
 
-	str, _ := Make(conf)
+	st, _ = g.Make(nomino.WithPrefix("foo"))
-	fmt.Println(str)
+	fmt.Println(st)
-
-	str, _ = Make(conf)
-	fmt.Println(str)
-
-	str, _ = Make(conf)
-	fmt.Println(str)
 
 	// Output:
-	// foo_0.txt
+	// 0.txt
 	// foo_1.txt
-	// foo_2.txt
 }
 
-func ExampleIncrementalWithStart() {
+func ExampleMultiGeneratorInOrder() {
-	conf := NewConfig(WithPrefix("foo"), WithGenerator(IncrementalWithStart(42)))
+	gen1 := func(*nomino.Config) (string, error) {
+		return "bonjour", nil
+	}
+	gen2 := func(*nomino.Config) (string, error) {
+		return "goodbye", nil
+	}
+	gen := nomino.MultiGeneratorInOrder(gen1, gen2)
 
-	str, _ := Make(conf)
+	str, _ := gen.Make()
 	fmt.Println(str)
 
-	str, _ = Make(conf)
+	str, _ = gen.Make()
 	fmt.Println(str)
 
-	str, _ = Make(conf)
+	str, _ = gen.Make()
 	fmt.Println(str)
 
 	// Output:
-	// foo_42.txt
+	// bonjour.txt
-	// foo_43.txt
+	// goodbye.txt
-	// foo_44.txt
+	// bonjour.txt
 }
 
-func ExampleIncrementalWithStep() {
+func ExampleMultiGeneratorRandomOrder() {
-	conf := NewConfig(WithPrefix("foo"), WithGenerator(IncrementalWithStep(2)))
+	gen1 := func(*nomino.Config) (string, error) {
+		return "guten-tag", nil
+	}
+	gen2 := func(*nomino.Config) (string, error) {
+		return "wiedersehen", nil
+	}
+	gen := nomino.MultiGeneratorRandomOrder(gen1, gen2)
 
-	str, _ := Make(conf)
+	str, _ := gen.Make()
 	fmt.Println(str)
 
-	str, _ = Make(conf)
+	str, _ = gen.Make()
 	fmt.Println(str)
 
-	str, _ = Make(conf)
+	str, _ = gen.Make()
 	fmt.Println(str)
-
-	// Output:
-	// foo_0.txt
-	// foo_2.txt
-	// foo_4.txt
-}
-
-func ExampleIncrementalWithStartAndStep() {
-	conf := NewConfig(WithPrefix("foo"), WithGenerator(IncrementalWithStartAndStep(42, 2)))
-
-	str, _ := Make(conf)
-	fmt.Println(str)
-
-	str, _ = Make(conf)
-	fmt.Println(str)
-
-	str, _ = Make(conf)
-	fmt.Println(str)
-
-	// Output:
-	// foo_42.txt
-	// foo_44.txt
-	// foo_46.txt
-}
-
-func ExampleIncrementalFormat() {
-	conf := NewConfig(
-		WithPrefix("foo"),
-		WithGenerator(IncrementalFormat("%03d")),
-	)
-
-	str, _ := Make(conf)
-	fmt.Println(str)
-
-	str, _ = Make(conf)
-	fmt.Println(str)
-
-	str, _ = Make(conf)
-	fmt.Println(str)
-
-	// Output:
-	// foo_000.txt
-	// foo_001.txt
-	// foo_002.txt
-}
-
-func ExampleIncrementalFormatWithStart() {
-	conf := NewConfig(
-		WithPrefix("foo"),
-		WithGenerator(IncrementalFormatWithStart(9, "%02d")),
-	)
-
-	str, _ := Make(conf)
-	fmt.Println(str)
-
-	str, _ = Make(conf)
-	fmt.Println(str)
-
-	// Output:
-	// foo_09.txt
-	// foo_10.txt
-}
-
-func ExampleIncrementalFormatWithStep() {
-	conf := NewConfig(
-		WithPrefix("foo"),
-		WithGenerator(IncrementalFormatWithStep(10, "%02d")),
-	)
-
-	str, _ := Make(conf)
-	fmt.Println(str)
-
-	str, _ = Make(conf)
-	fmt.Println(str)
-
-	// Output:
-	// foo_00.txt
-	// foo_10.txt
-}
-
-func ExampleSlug() {
-	conf := NewConfig(WithGenerator(Slug()), WithOriginal("My name is Jimmy"))
-	str, _ := Make(conf)
-	fmt.Println(str)
-
-	// Output: my-name-is-jimmy.txt
-}
-
-func ExampleSlugWithLang() {
-	conf := NewConfig(WithGenerator(SlugWithLang("de")), WithOriginal("Diese & Dass"))
-	str, _ := Make(conf)
-	fmt.Println(str)
-
-	// Output: diese-und-dass.txt
 }

generators_test.go

@@ -3,54 +3,59 @@ package nomino
 import (
 	"errors"
 	"testing"
-	"time"
 
-	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 )
 
+const (
+	out1 string = "abc"
+	out2 string = "def"
+)
+
+var (
+	outs           = []string{out1, out2}
+	err1           = errors.New("oops")
+	gen1 Generator = func(*Config) (string, error) { return out1, nil }
+	gen2 Generator = func(*Config) (string, error) { return out2, nil }
+	gen3 Generator = func(*Config) (string, error) { return "", err1 }
+	gens           = []Generator{gen1, gen2, gen3}
+)
+
 func TestWithGenerator(t *testing.T) {
-	g := func(*Config) (string, error) { return "abc", nil }
+	g := func(*Config) (string, error) { return out1, nil }
 	var c Config
 	WithGenerator(g)(&c)
 	st, err := c.generator(&c)
 	assert.NoError(t, err)
-	assert.Equal(t, "abc", st)
+	assert.Equal(t, out1, st)
 }
 
 func TestMultiGeneratorInOrder(t *testing.T) {
-	st1 := "abc"
+	g := MultiGeneratorInOrder(gens...)
-	st2 := "def"
-	er1 := errors.New("oops")
-	g1 := func(*Config) (string, error) { return st1, nil }
-	g2 := func(*Config) (string, error) { return st2, nil }
-	g3 := func(*Config) (string, error) { return "", er1 }
-	g := MultiGeneratorInOrder(g1, g2, g3)
 	st, err := g(nil)
 	assert.NoError(t, err)
-	assert.Equal(t, st1, st)
+	assert.Equal(t, out1, st)
 	st, err = g(nil)
 	assert.NoError(t, err)
-	assert.Equal(t, st2, st)
+	assert.Equal(t, out2, st)
 	st, err = g(nil)
 	assert.Zero(t, st)
-	assert.ErrorIs(t, err, er1)
+	assert.ErrorIs(t, err, err1)
 	st, err = g(nil)
 	assert.NoError(t, err)
-	assert.Equal(t, st1, st)
+	assert.Equal(t, out1, st)
 }
 
 func TestMultiGeneratorInOrderOne(t *testing.T) {
-	st1 := "abc"
+	g1 := func(*Config) (string, error) { return out1, nil }
-	g1 := func(*Config) (string, error) { return st1, nil }
 	g := MultiGeneratorInOrder(g1)
 
 	st, err := g(nil)
 	assert.NoError(t, err)
-	assert.Equal(t, st1, st)
+	assert.Equal(t, out1, st)
 	st, err = g(nil)
 	assert.NoError(t, err)
-	assert.Equal(t, st1, st)
+	assert.Equal(t, out1, st)
 }
 
 func TestMultiGeneratorInOrderMissing(t *testing.T) {
@@ -63,60 +68,38 @@ func TestMultiGeneratorInOrderMissing(t *testing.T) {
 	assert.ErrorIs(t, err, ErrMissingGenerators)
 }
 
-func TestUUID(t *testing.T) {
+func TestMultiGeneratorRandomOrder(t *testing.T) {
-	st, err := UUID()(nil)
+	g := MultiGeneratorRandomOrder(gens...)
+	for i := 0; i < 4; i++ {
+		st, err := g(nil)
+		if err != nil {
+			assert.Zero(t, st)
+			assert.ErrorIs(t, err, err1)
+		} else {
+			assert.Contains(t, outs, st)
+		}
+	}
+}
+
+func TestMultiGeneratorRandomOrderOne(t *testing.T) {
+	st1 := "abc"
+	g1 := func(*Config) (string, error) { return st1, nil }
+	g := MultiGeneratorRandomOrder(g1)
+
+	st, err := g(nil)
 	assert.NoError(t, err)
-	_, parseErr := uuid.Parse(st)
+	assert.Equal(t, st1, st)
-	assert.NoError(t, parseErr)
+	st, err = g(nil)
-}
-
-type badRead struct{}
-
-func (badRead) Read([]byte) (int, error) {
-	return 0, errors.New("sorry")
-}
-
-func TestUUIDFail(t *testing.T) {
-	uuid.SetRand(badRead{})
-	defer uuid.SetRand(nil)
-
-	_, err := UUID()(nil)
-	assert.Equal(t, errors.New("sorry"), err)
-}
-
-func TestTimestamp(t *testing.T) {
-	n := time.Now()
-	st, err := Timestamp()(nil)
 	assert.NoError(t, err)
-	assert.Equal(t, n.Format(FileTimestamp), st)
+	assert.Equal(t, st1, st)
 }
 
-func TestTime(t *testing.T) {
+func TestMultiGeneratorRandomOrderMissing(t *testing.T) {
-	d := time.Date(1986, time.March, 28, 12, 0, 0, 0, time.UTC)
+	g := MultiGeneratorRandomOrder()
-
+	st, err := g(nil)
-	st, err := Time(d)(nil)
-	assert.NoError(t, err)
-	assert.Equal(t, d.Format(FileTimestamp), st)
-}
-
-func TestTimestampUTC(t *testing.T) {
-	n := time.Now()
-	st, err := TimestampUTC()(nil)
-	assert.NoError(t, err)
-	assert.Equal(t, n.UTC().Format(FileTimestampNoTZ), st)
-}
-
-func TestSlugMissingFilename(t *testing.T) {
-	conf := NewConfig(WithGenerator(Slug()))
-	st, err := conf.generator(&conf)
 	assert.Zero(t, st)
-	assert.ErrorIs(t, err, ErrMissingOriginal)
+	assert.ErrorIs(t, err, ErrMissingGenerators)
-}
+	st, err = g(nil)
-
+	assert.Zero(t, st)
-func TestSlugRemovesOriginal(t *testing.T) {
+	assert.ErrorIs(t, err, ErrMissingGenerators)
-	conf := NewConfig(WithGenerator(Slug()), WithOriginal("Hello, World"))
-	st, err := conf.generator(&conf)
-	assert.Zero(t, conf.original)
-	assert.Equal(t, "hello-world", st)
-	assert.NoError(t, err)
 }

go.mod

@@ -3,6 +3,7 @@ module codeberg.org/danjones000/nomino
 go 1.23.6
 
 require (
+	github.com/deatil/go-encoding v1.0.3003
 	github.com/google/uuid v1.6.0
 	github.com/gosimple/slug v1.15.0
 	github.com/stretchr/testify v1.10.0

go.sum

@@ -1,5 +1,7 @@
 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/deatil/go-encoding v1.0.3003 h1:2b05UO+5JfVcXcOa8n/X3pm8aC6L6ET0mBZCb1kj3ck=
+github.com/deatil/go-encoding v1.0.3003/go.mod h1:lTMMKsG0RRPGZzdW2EPVJCA7HQy4o1ZQKPf5CmVDy2k=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gosimple/slug v1.15.0 h1:wRZHsRrRcs6b0XnxMUBM6WK1U1Vg5B0R7VkIf1Xzobo=

make.go

@@ -2,25 +2,31 @@ package nomino
 
 import "fmt"
 
-// Make generates a random filename. The behavior can be controlled by specifying Options
+// Make generates a random filename. The behavior can be controlled by specifying Options.
 // In general, the final filename will be [prefix]_[generated_string]_[original_filename]_[suffix].[extension].
-// If the name generator returns an error (generally, it shouldn't), that will be returned instead.
+// If the name generator returns an error (generally, it shouldn't), that error will be returned instead.
-func Make(conf Config) (string, error) {
+func Make(conf Config, opts ...Option) (string, error) {
+	for _, opt := range opts {
+		opt(&conf)
+	}
+
 	name, err := conf.generator(&conf)
 	if err != nil {
 		return "", err
 	}
+	seperateConf(&conf)
 
+	return fmt.Sprintf("%s%s%s%s%s", conf.prefix, name, conf.original, conf.suffix, conf.extension), nil
+}
+
+func seperateConf(conf *Config) {
 	if conf.prefix != "" {
-		conf.prefix = conf.prefix + conf.separator
+		conf.prefix += conf.separator
 	}
 	if conf.original != "" {
 		conf.original = conf.separator + conf.original
 	}
 	if conf.suffix != "" {
 		conf.suffix = conf.separator + conf.suffix
-
 	}
-
-	return fmt.Sprintf("%s%s%s%s%s", conf.prefix, name, conf.original, conf.suffix, conf.extension), nil
 }

make_examples_test.go

@@ -1,9 +1,30 @@
-package nomino
+package nomino_test
 
-import "fmt"
+import (
+	"fmt"
+
+	"codeberg.org/danjones000/nomino"
+)
 
 func ExampleMake_basic() {
 	// Use default config
-	out, _ := Make(NewConfig())
+	out, _ := nomino.Make(nomino.NewConfig())
 	fmt.Println(out)
 }
+
+func ExampleMake_withExtraOptions() {
+	gen := nomino.Incremental()
+	conf := nomino.NewConfig(
+		nomino.WithGenerator(gen),
+		nomino.WithPrefix("pre"),
+	)
+
+	st, _ := nomino.Make(conf, nomino.WithOriginal("foobar"))
+	fmt.Println(st)
+	st, _ = nomino.Make(conf, nomino.WithOriginal("baz"))
+	fmt.Println(st)
+
+	// Output:
+	// pre_0_foobar.txt
+	// pre_1_baz.txt
+}

make_test.go

@@ -7,6 +7,8 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+var errTest = errors.New("sorry")
+
 func TestMake(t *testing.T) {
 	genOpt := WithGenerator(func(*Config) (string, error) { return "abc", nil })
 	testcases := []struct {
@@ -36,7 +38,9 @@ func TestMake(t *testing.T) {
 
 	for _, testcase := range testcases {
 		t.Run(testcase.name, func(sub *testing.T) {
-			opts := append(testcase.opts, genOpt)
+			opts := testcase.opts
+			opts = append(opts, genOpt)
+
 			conf := NewConfig(opts...)
 			st, err := Make(conf)
 			assert.NoError(t, err)
@@ -46,11 +50,10 @@ func TestMake(t *testing.T) {
 }
 
 func TestMakeErr(t *testing.T) {
-	retErr := errors.New("oops")
+	conf := NewConfig(WithGenerator(func(*Config) (string, error) { return "foobar", errTest }))
-	conf := NewConfig(WithGenerator(func(*Config) (string, error) { return "foobar", retErr }))
 	st, err := Make(conf)
 	assert.Zero(t, st)
-	assert.ErrorIs(t, err, retErr)
+	assert.ErrorIs(t, err, errTest)
 }
 
 func TestMakeDoesntChangeConf(t *testing.T) {
@@ -64,3 +67,18 @@ func TestMakeDoesntChangeConf(t *testing.T) {
 	assert.Equal(t, "foo.txt", st)
 	assert.NoError(t, err)
 }
+
+func TestMakeOptsDoesntChangeConf(t *testing.T) {
+	gen := Incremental()
+	conf := NewConfig(WithGenerator(gen), WithPrefix("pre"))
+
+	st, err := Make(conf, WithOriginal("foobar"))
+	assert.Equal(t, "", conf.original)
+	assert.Equal(t, "pre_0_foobar.txt", st)
+	assert.NoError(t, err)
+
+	st, err = Make(conf, WithOriginal("baz"))
+	assert.Equal(t, "", conf.original)
+	assert.Equal(t, "pre_1_baz.txt", st)
+	assert.NoError(t, err)
+}

nomino.go

@@ -0,0 +1,7 @@
+// Package nomino is a utility that allows us to generate random filenames.
+//
+// There are two main methods of using nomino.
+//
+//  1. Using the [Make] function.
+//  2. Creating a generator, and using its [Generator.Make] method.
+package nomino

options.go

@@ -6,7 +6,7 @@ import (
 	"github.com/gosimple/slug"
 )
 
-// Option sets configuration parameters for Config.
+// Option sets configuration parameters for [Config].
 type Option func(c *Config)
 
 // WithOriginal sets the original filename.
@@ -18,7 +18,7 @@ func WithOriginal(o string) Option {
 }
 
 // WithOriginal sets the original filename as a slug.
-// This should not be used with the Slug Generator (as it would be redundant)
+// This should not be used with the [Slug] [Generator] (as it would be redundant).
 func WithOriginalSlug(o string) Option {
 	return func(c *Config) {
 		c.original = slug.Make(o)
@@ -26,7 +26,7 @@ func WithOriginalSlug(o string) Option {
 }
 
 // WithOriginal sets the original filename as a slug, taking the language into account.
-// This should not be used with the Slug Generator (as it would be redundant)
+// This should not be used with the [Slug] [Generator] (as it would be redundant).
 func WithOriginalSlugLang(o, lang string) Option {
 	return func(c *Config) {
 		c.original = slug.MakeLang(o, lang)
@@ -47,7 +47,7 @@ func WithSuffix(s string) Option {
 	}
 }
 
-// WithoutExtension sets no extension for the generated filename. By default, it will be txt
+// WithoutExtension sets no extension for the generated filename. By default, it will be txt.
 func WithoutExtension() Option {
 	return func(c *Config) {
 		c.extension = ""

options_examples_test.go

@@ -1,11 +1,91 @@
-package nomino
+package nomino_test
 
-import "fmt"
+import (
+	"fmt"
+
+	"codeberg.org/danjones000/nomino"
+)
+
+func ExampleWithExtension() {
+	st, _ := nomino.Make(nomino.NewConfig(
+		nomino.WithExtension("xml"),
+		nomino.WithGenerator(nomino.Incremental()),
+	))
+
+	fmt.Println(st)
+	// Output: 0.xml
+}
+
+func ExampleWithoutExtension() {
+	st, _ := nomino.Make(nomino.NewConfig(
+		nomino.WithoutExtension(),
+		nomino.WithGenerator(nomino.Incremental()),
+	))
+
+	fmt.Println(st)
+	// Output: 0
+}
+
+func ExampleWithPrefix() {
+	conf := nomino.NewConfig(
+		nomino.WithPrefix("pref"),
+		nomino.WithGenerator(nomino.Incremental()),
+	)
+	st, _ := nomino.Make(conf)
+	fmt.Println(st)
+
+	st, _ = nomino.Make(conf)
+	fmt.Println(st)
+	// Output:
+	// pref_0.txt
+	// pref_1.txt
+}
+
+func ExampleWithSeparator() {
+	conf := nomino.NewConfig(
+		nomino.WithPrefix("pref"),
+		nomino.WithSeparator("---"),
+		nomino.WithGenerator(nomino.Incremental()),
+	)
+	st, _ := nomino.Make(conf)
+	fmt.Println(st)
+
+	st, _ = nomino.Make(conf)
+	fmt.Println(st)
+	// Output:
+	// pref---0.txt
+	// pref---1.txt
+}
+
+func ExampleWithSuffix() {
+	conf := nomino.NewConfig(
+		nomino.WithSuffix("suff"),
+		nomino.WithGenerator(nomino.Incremental()),
+	)
+	st, _ := nomino.Make(conf)
+	fmt.Println(st)
+
+	st, _ = nomino.Make(conf)
+	fmt.Println(st)
+	// Output:
+	// 0_suff.txt
+	// 1_suff.txt
+}
+
+func ExampleWithOriginal() {
+	st, _ := nomino.Make(nomino.NewConfig(
+		nomino.WithOriginal("Hello, World"),
+		nomino.WithGenerator(nomino.Incremental()),
+	))
+
+	fmt.Println(st)
+	// Output: 0_Hello, World.txt
+}
 
 func ExampleWithOriginalSlug() {
-	st, _ := Make(NewConfig(
+	st, _ := nomino.Make(nomino.NewConfig(
-		WithOriginalSlug("Hello, World"),
+		nomino.WithOriginalSlug("Hello, World"),
-		WithGenerator(Incremental()),
+		nomino.WithGenerator(nomino.Incremental()),
 	))
 
 	fmt.Println(st)
@@ -13,9 +93,9 @@ func ExampleWithOriginalSlug() {
 }
 
 func ExampleWithOriginalSlugLang() {
-	st, _ := Make(NewConfig(
+	st, _ := nomino.Make(nomino.NewConfig(
-		WithOriginalSlugLang("Diese & Dass", "de"),
+		nomino.WithOriginalSlugLang("Diese & Dass", "de"),
-		WithGenerator(Incremental()),
+		nomino.WithGenerator(nomino.Incremental()),
 	))
 
 	fmt.Println(st)

options_test.go

@@ -1,48 +0,0 @@
-package nomino
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestWithOriginal(t *testing.T) {
-	var c Config
-	name := "foobar"
-	WithOriginal(name)(&c)
-	assert.Equal(t, name, c.original)
-}
-
-func TestWithPrefix(t *testing.T) {
-	var c Config
-	pref := "draft"
-	WithPrefix(pref)(&c)
-	assert.Equal(t, pref, c.prefix)
-}
-
-func TestWithSuffix(t *testing.T) {
-	var c Config
-	suff := "out"
-	WithSuffix(suff)(&c)
-	assert.Equal(t, suff, c.suffix)
-}
-
-func TestWithoutExtension(t *testing.T) {
-	c := Config{extension: ".foobar"}
-	WithoutExtension()(&c)
-	assert.Equal(t, "", c.extension)
-}
-
-func TestWithExtension(t *testing.T) {
-	var c Config
-	ext := "yaml"
-	WithExtension(ext)(&c)
-	assert.Equal(t, "."+ext, c.extension)
-}
-
-func TestWithSeparator(t *testing.T) {
-	var c Config
-	sep := "---"
-	WithSeparator(sep)(&c)
-	assert.Equal(t, sep, c.separator)
-}