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github.go
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github.go
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package github
import (
"bytes"
"context"
"fmt"
"io"
"mime"
"net/http"
"os"
"path"
"github.com/google/go-github/github"
"golang.org/x/oauth2"
"github.com/kubri/kubri/source"
)
type Config struct {
Owner string
Repo string
}
type githubSource struct {
client *github.Client
owner string
repo string
}
func New(c Config) (*source.Source, error) {
var client *http.Client
if token := os.Getenv("GITHUB_TOKEN"); token != "" {
ts := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: token})
client = oauth2.NewClient(context.Background(), ts)
}
s := &githubSource{
client: github.NewClient(client),
owner: c.Owner,
repo: c.Repo,
}
return source.New(s), nil
}
func (s *githubSource) ListReleases(ctx context.Context) ([]*source.Release, error) {
releases, _, err := s.client.Repositories.ListReleases(ctx, s.owner, s.repo, nil)
if err != nil {
return nil, err
}
r := make([]*source.Release, 0, len(releases))
for _, release := range releases {
r = append(r, parseRelease(release))
}
return r, nil
}
func (s *githubSource) GetRelease(ctx context.Context, version string) (*source.Release, error) {
r, _, err := s.client.Repositories.GetReleaseByTag(ctx, s.owner, s.repo, version)
if err != nil {
return nil, err
}
return parseRelease(r), nil
}
func parseRelease(release *github.RepositoryRelease) *source.Release {
r := &source.Release{
Name: release.GetName(),
Description: release.GetBody(),
Version: release.GetTagName(),
Date: release.PublishedAt.Time,
Prerelease: release.GetPrerelease(),
Assets: make([]*source.Asset, 0, len(release.Assets)),
}
for _, asset := range release.Assets {
r.Assets = append(r.Assets, &source.Asset{
Name: asset.GetName(),
URL: asset.GetBrowserDownloadURL(),
Size: asset.GetSize(),
})
}
return r
}
func (s *githubSource) UploadAsset(ctx context.Context, version, name string, data []byte) error {
release, _, err := s.client.Repositories.GetReleaseByTag(ctx, s.owner, s.repo, version)
if err != nil {
return err
}
u := fmt.Sprintf("repos/%s/%s/releases/%d/assets?name=%s", s.owner, s.repo, release.GetID(), name)
mediaType := mime.TypeByExtension(path.Ext(name))
req, err := s.client.NewUploadRequest(u, bytes.NewReader(data), int64(len(data)), mediaType)
if err != nil {
return err
}
_, err = s.client.Do(ctx, req, nil)
return err
}
func (s *githubSource) DownloadAsset(ctx context.Context, version, name string) ([]byte, error) {
release, _, err := s.client.Repositories.GetReleaseByTag(ctx, s.owner, s.repo, version)
if err != nil {
return nil, err
}
for _, asset := range release.Assets {
if asset.GetName() == name {
r, u, err := s.client.Repositories.DownloadReleaseAsset(ctx, s.owner, s.repo, asset.GetID())
if err != nil {
return nil, err
}
if r != nil {
defer r.Close()
return io.ReadAll(r)
}
req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
if err != nil {
return nil, err
}
res, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer res.Body.Close()
return io.ReadAll(res.Body)
}
}
return nil, source.ErrAssetNotFound
}