elliotchance/gedcom

package core

import (
    "crypto/sha1"
    "fmt"
    "io"
    "os"
)

type DirectoryFileWriter struct {
    outputDir     string
    WillWriteFile func(file *File)
}

func NewDirectoryFileWriter(outputDir string) *DirectoryFileWriter {
    return &DirectoryFileWriter{
        outputDir: outputDir,
    }
}

func (writer *DirectoryFileWriter) WriteFile(file *File) error {
    path := fmt.Sprintf("%s/%s", writer.outputDir, file.Name)

    if writer.WillWriteFile != nil {
        writer.WillWriteFile(file)
    }

    out, err := os.Create(path)
    if err != nil {
        return err
    }

    file.Component.WriteHTMLTo(out)

    return out.Close()
}

func (writer *DirectoryFileWriter) fileSha1(path string) (string, error) {
    f, err := os.Open(writer.outputDir + "/" + path)
    if err != nil {
        return "", err
    }
    defer f.Close()

    h := sha1.New()
    if _, err := io.Copy(h, f); err != nil {
        return "", err
    }

    return fmt.Sprintf("%x", h.Sum(nil)), nil
}