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Find file Copy path
Find file Copy path
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package genny
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"github.com/gobuffalo/packd"
)
// ForceBox will mount each file in the box and wrap it with ForceFile
func ForceBox(g *Generator, box packd.Walker, force bool) error {
return box.Walk(func(path string, bf packd.File) error {
f := NewFile(path, bf)
ff := ForceFile(f, force)
f, err := ff(f)
if err != nil {
return err
}
g.File(f)
return nil
})
}
// ForceFile is a TransformerFn that will return an error if the path exists if `force` is false. If `force` is true it will delete the path.
func ForceFile(f File, force bool) TransformerFn {
return func(f File) (File, error) {
path := f.Name()
path, err := filepath.Abs(path)
if err != nil {
return f, err
}
_, err = os.Stat(path)
if err != nil {
// path doesn't exist. move on.
return f, nil
}
if !force {
return f, fmt.Errorf("path %s already exists", path)
}
if err := os.RemoveAll(path); err != nil {
return f, err
}
return f, nil
}
}
// Force is a RunFn that will return an error if the path exists if `force` is false. If `force` is true it will delete the path.
// Is is recommended to use ForceFile when you can.
func Force(path string, force bool) RunFn {
if path == "." || path == "" {
pwd, _ := os.Getwd()
path = pwd
}
return func(r *Runner) error {
path, err := filepath.Abs(path)
if err != nil {
return err
}
fi, err := os.Stat(path)
if err != nil {
// path doesn't exist. move on.
return nil
}
if !force {
if !fi.IsDir() {
return fmt.Errorf("path %s already exists", path)
}
files, err := ioutil.ReadDir(path)
if err != nil {
return err
}
if len(files) > 0 {
return fmt.Errorf("path %s already exists", path)
}
return nil
}
if err := os.RemoveAll(path); err != nil {
return err
}
return nil
}
}
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