/
manifest_file.go
88 lines (72 loc) · 1.41 KB
/
manifest_file.go
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package datadex
import (
"fmt"
"github.com/jbenet/data"
"io/ioutil"
"strings"
)
type ManifestFile struct {
Path string
Ref string
buffer []byte
}
var noReadmeFile = &ManifestFile{
Path: "readme",
Ref: "",
}
func (f *ManifestFile) Read() error {
if f.Ref == "" {
return fmt.Errorf("No reference to read.")
}
i, err := data.NewMainDataIndex()
if err != nil {
return err
}
rdr, err := i.BlobStore.Get(data.BlobKey(f.Ref))
if err != nil {
return err
}
// read the blob
f.buffer, err = ioutil.ReadAll(rdr)
if err != nil {
return err
}
return nil
}
func (f *ManifestFile) Bytes() []byte {
return f.buffer
}
func (f *ManifestFile) RenderedBytes() []byte {
// render markdown?
if strings.HasSuffix(f.Path, ".md") {
return RenderMarkdownSafe(f.buffer)
}
return f.buffer
}
func (f *ManifestFile) CanBeRendered() bool {
return strings.HasSuffix(f.Path, ".md")
}
func FileForManifestRef(ref string) (*ManifestFile, error) {
mf, err := data.NewManifestWithRef(ref)
if err != nil {
return nil, fmt.Errorf("Error loading manifest: %s", err.Error())
}
attempts := []string{
"readme.md",
"readme.txt",
"readme",
}
for _, attempt := range attempts {
attempt = strings.ToLower(attempt)
for path, hash := range mf.Files {
path = strings.ToLower(path)
if path == attempt {
return &ManifestFile{
Path: path,
Ref: hash,
}, nil
}
}
}
return nil, ErrNotFound
}