90 lines
1.7 KiB
Go
90 lines
1.7 KiB
Go
package main
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import (
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"bufio"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"strings"
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)
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func BuildOverlayDir(sourceDir string, destDir string, replace map[string]string) error {
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err := os.Chdir(sourceDir)
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if err != nil {
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fmt.Println(err)
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return err
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}
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err = filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if info.IsDir() {
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err := os.MkdirAll(destDir + "/" + path, info.Mode())
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if err != nil {
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fmt.Println(err)
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}
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} else {
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if filepath.Ext(path) == ".in" {
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destFile := strings.TrimSuffix(path, ".in")
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sourceFD, err := os.Open(sourceDir + "/" + path)
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if err != nil {
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return err
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}
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destFD, err :=os.OpenFile(destDir + "/" + destFile, os.O_RDWR|os.O_CREATE, info.Mode())
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if err != nil {
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return err
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}
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scanner := bufio.NewScanner(sourceFD)
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w := bufio.NewWriter(destFD)
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for scanner.Scan() {
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newLine := scanner.Text()
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for k, v := range replace {
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replaceString := fmt.Sprintf("@%s@", strings.ToUpper(k))
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newLine = strings.ReplaceAll(newLine, replaceString, v)
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}
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_, err := w.WriteString(newLine + "\n")
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if err != nil {
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return err
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}
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}
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w.Flush()
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sourceFD.Close()
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destFD.Close()
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} else {
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sourceFD, err := os.Open(sourceDir + "/" + path)
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if err != nil {
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return err
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}
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defer sourceFD.Close()
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destFD, err := os.OpenFile(destDir + "/" + path, os.O_RDWR|os.O_CREATE, info.Mode())
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if err != nil {
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return err
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}
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defer destFD.Close()
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_, err = io.Copy(destFD, sourceFD)
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if err != nil {
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return err
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}
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}
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}
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return nil
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})
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if err != nil {
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fmt.Println(err)
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return err
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}
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return nil
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} |