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config-mapper/internal/misc/tools.go

181 lines
3.2 KiB
Go

package misc
import (
"errors"
"fmt"
"io"
"os"
"path"
"runtime"
"strings"
"gitea.antoine-langlois.net/datahearth/config-mapper/internal/configuration"
)
func AbsolutePath(p string) (string, error) {
finalPath := p
if strings.Contains(finalPath, "~") {
h, err := os.UserHomeDir()
if err != nil {
return "", err
}
finalPath = strings.Replace(p, "~", h, 1)
}
splitted := strings.Split(finalPath, "/")
finalPath = ""
for _, s := range splitted {
pathPart := s
if strings.Contains(s, "$") {
env := os.Getenv(s)
if env == "" {
return "", errors.New("found invalid environment variable in path")
}
pathPart = env
}
finalPath += fmt.Sprintf("/%s", pathPart)
}
return path.Clean(finalPath), nil
}
func getPaths(p string, l string) (string, string, error) {
paths := strings.Split(p, ":")
if len(paths) < 2 {
return "", "", errors.New("path incorrectly formatted. It requires \"source:destination\"")
}
src, err := AbsolutePath(strings.Replace(paths[0], "$LOCATION", l, 1))
if err != nil {
return "", "", err
}
dst, err := AbsolutePath(paths[1])
if err != nil {
return "", "", err
}
return src, dst, nil
}
func CopyFile(src, dst string) error {
s, err := os.Stat(src)
if err != nil {
return err
}
in, err := os.Open(src)
if err != nil {
return err
}
defer in.Close()
out, err := os.Create(dst)
if err != nil {
return err
}
defer out.Close()
if _, err := io.Copy(out, in); err != nil {
return err
}
if err := os.Chmod(dst, s.Mode()); err != nil {
return err
}
return nil
}
func ConfigPaths(os configuration.OSLocation, location string) (string, string, error) {
var src, dst string
var err error
switch runtime.GOOS {
case "linux":
if os.Linux == "" {
return "", "", nil
}
src, dst, err = getPaths(os.Linux, location)
if err != nil {
return "", "", err
}
case "darwin":
if os.Darwin == "" {
return "", "", nil
}
src, dst, err = getPaths(os.Darwin, location)
if err != nil {
return "", "", err
}
default:
return "", "", errors.New("unsupported OS. Please, contact the maintainer")
}
return src, dst, nil
}
var ignored map[string]bool
func CopyFolder(src, dst string, checkIgnore bool) error {
items, err := os.ReadDir(src)
if err != nil {
return err
}
if checkIgnore {
f, err := os.ReadFile(fmt.Sprintf("%s/.ignore", src))
if err != nil && !errors.Is(err, io.EOF) {
if !errors.Is(err, os.ErrNotExist) {
return err
}
}
ignored = map[string]bool{}
for _, l := range strings.Split(string(f), "\n") {
if l != "" && !strings.Contains(l, "#") {
ignored[fmt.Sprintf("%s/%s", src, l)] = true
}
}
}
for _, i := range items {
itemName := i.Name()
srcItem := fmt.Sprintf("%s/%s", src, itemName)
// do not copy item if it's present in .ignore file
if ignored != nil {
if _, ok := ignored[srcItem]; ok {
continue
}
}
dstItem := fmt.Sprintf("%s/%s", dst, itemName)
if i.IsDir() {
info, err := i.Info()
if err != nil {
return err
}
if err := os.MkdirAll(dstItem, info.Mode()); err != nil {
return err
}
if err := CopyFolder(srcItem, dstItem, false); err != nil {
return err
}
continue
}
if err := CopyFile(srcItem, dstItem); err != nil {
return err
}
}
return nil
}