77 lines
1.5 KiB
Go
77 lines
1.5 KiB
Go
package builder
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import (
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"bytes"
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"compress/gzip"
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"encoding/json"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"github.com/pkg/errors"
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)
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type box struct {
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Name string
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Files []file
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compress bool
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}
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func (b *box) Walk(root string) error {
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root, err := filepath.EvalSymlinks(root)
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if err != nil {
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return errors.WithStack(err)
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}
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if _, err := os.Stat(root); err != nil {
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// return nil
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return errors.Errorf("could not find folder for box: %s", root)
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}
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return filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
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if info == nil || info.IsDir() || strings.HasSuffix(info.Name(), "-packr.go") {
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return nil
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}
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name := strings.Replace(path, root+string(os.PathSeparator), "", 1)
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name = strings.Replace(name, "\\", "/", -1)
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f := file{
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Name: name,
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}
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DebugLog("packing file %s\n", f.Name)
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bb, err := ioutil.ReadFile(path)
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if err != nil {
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return errors.WithStack(err)
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}
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if b.compress {
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bb, err = compressFile(bb)
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if err != nil {
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return errors.WithStack(err)
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}
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}
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bb, err = json.Marshal(bb)
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if err != nil {
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return errors.WithStack(err)
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}
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f.Contents = strings.Replace(string(bb), "\"", "\\\"", -1)
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DebugLog("packed file %s\n", f.Name)
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b.Files = append(b.Files, f)
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return nil
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})
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}
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func compressFile(bb []byte) ([]byte, error) {
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var buf bytes.Buffer
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writer := gzip.NewWriter(&buf)
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_, err := writer.Write(bb)
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if err != nil {
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return bb, errors.WithStack(err)
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}
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err = writer.Close()
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if err != nil {
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return bb, errors.WithStack(err)
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}
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return buf.Bytes(), nil
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}
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