Feature/init

README.md

@@ -0,0 +1,3 @@
+# Pathname
+
+This is a implementation of Ruby's Pathname class.

go.mod

@@ -1,3 +1,11 @@
 module github.com/mai7star/pathname
 
 go 1.24.4
+
+require github.com/stretchr/testify v1.10.0
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,10 @@
+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/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

pathname.go

@@ -0,0 +1,126 @@
+package pathname
+
+import (
+	"os"
+	"path/filepath"
+	"slices"
+)
+
+type Pathname struct {
+	path string
+}
+
+func NewPathname(path string) Pathname {
+	return Pathname{
+		path: path,
+	}
+}
+
+func NewPathnamePtr(path string) *Pathname {
+	pathname := NewPathname(path)
+	return &pathname
+}
+
+func (p *Pathname) ToPath() string {
+	if p == nil {
+		return ""
+	}
+	return p.path
+}
+
+func (p *Pathname) IsAbsolute() bool {
+	if p == nil || p.path == "" {
+		return false
+	}
+	return p.path[0] == '/'
+}
+
+func (p *Pathname) IsRelative() bool {
+	if p == nil || p.path == "" {
+		return false
+	}
+	return p.path[0] != '/'
+}
+
+func (p *Pathname) IsRoot() bool {
+	if p == nil || p.path == "" {
+		return false
+	}
+	return p.path == "/"
+}
+
+func (p *Pathname) IsExist() bool {
+	if p == nil {
+		return false
+	}
+
+	_, err := os.Stat(p.path)
+	return err == nil
+}
+
+func (p *Pathname) IsFile() bool {
+	if p == nil {
+		return false
+	}
+
+	info, err := os.Stat(p.path)
+	if err != nil {
+		return false
+	}
+
+	return !info.IsDir()
+}
+
+func (p *Pathname) IsDirectory() bool {
+	if p == nil {
+		return false
+	}
+
+	info, err := os.Stat(p.path)
+	if err != nil {
+		return false
+	}
+
+	return info.IsDir()
+}
+
+func (p *Pathname) Basename() *Pathname {
+	if p == nil {
+		return nil
+	}
+
+	path := filepath.Base(p.path)
+	return NewPathnamePtr(path)
+}
+
+func (p *Pathname) Dirname() *Pathname {
+	if p == nil {
+		return nil
+	}
+
+	path := filepath.Dir(p.path)
+	return NewPathnamePtr(path)
+}
+
+func (p *Pathname) Join(parts ...string) *Pathname {
+	if p == nil {
+		return nil
+	}
+
+	parts = slices.Concat([]string{p.path}, parts)
+	path := filepath.Join(parts...)
+	return NewPathnamePtr(path)
+}
+
+func (p *Pathname) OpenFile(flag int, perm os.FileMode) (*os.File, error) {
+	return os.OpenFile(p.ToPath(), flag, perm)
+}
+
+func (p *Pathname) Size() (int, error) {
+	info, err := os.Stat(p.ToPath())
+	if err != nil {
+		return 0, err
+	}
+
+	return int(info.Size()), nil
+}