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files.go
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files.go
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package CIScriptsHelpers
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
)
func ExpandPath(path string) string {
home := os.Getenv("HOME")
if path == "~" {
// In case of "~", which won't be caught by the "else if"
path = home
} else if strings.HasPrefix(path, "~/") {
// Use strings.HasPrefix so we don't match paths like
// "/something/~/something/"
path = filepath.Join(home, path[2:])
}
return os.ExpandEnv(path)
}
func RecursiveFilesInFolder(folder string) ([]string, error) {
files := make([]string, 0)
err := filepath.Walk(folder, func(path string, _ os.FileInfo, err error) error {
if err != nil {
return err
}
f, err := os.Stat(path)
// If no error
if err != nil {
return err
}
// File & Folder Mode
fMode := f.Mode()
if fMode.IsRegular() {
// Append to Files Array
files = append(files, path)
}
return nil
})
return files, err
}
func CopyAndExpandFolder(srcFolder, destFolder string) error {
err := filepath.Walk(srcFolder, func(src string, _ os.FileInfo, err error) error {
if err != nil {
return err
}
srcFile, err := os.Stat(src)
// If no error
if err != nil {
return err
}
// File & Folder Mode
srcfMode := srcFile.Mode()
if srcfMode.IsRegular() {
relPath, err := filepath.Rel(srcFolder, src)
if err != nil {
return err
}
dest := filepath.Join(destFolder, relPath)
// Append to Files Array
f, err := os.Create(dest)
if err != nil {
return err
}
if err = os.Chmod(f.Name(), srcfMode.Perm()); err != nil {
return err
}
s, err := ioutil.ReadFile(src)
if err != nil {
return err
}
// expand env but don't change the value if the env variable doesn't exist
expandedSrc := os.Expand(string(s), func(s string) string {
var expandedVal string
var ok bool
if expandedVal, ok = os.LookupEnv(s); !ok {
return fmt.Sprintf("${%s}", s)
}
return expandedVal
})
_, err = io.Copy(f, strings.NewReader(expandedSrc))
if err != nil {
return err
}
}
return nil
})
return err
}