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package export
import (
"context"
"errors"
"fmt"
"io"
"log"
"net/http"
"os"
"path"
"time"
"git.sr.ht/~emersion/gqlclient"
"git.sr.ht/~xenrox/hut/srht/todosrht"
)
const trackerFilename = "tracker.json.gz"
type TodoExporter struct {
client *gqlclient.Client
http *http.Client
}
func NewTodoExporter(client *gqlclient.Client, http *http.Client) *TodoExporter {
newHttp := *http
// XXX: Is this a sane default?
newHttp.Timeout = 10 * time.Minute
return &TodoExporter{
client: client,
http: &newHttp,
}
}
type TrackerInfo struct {
Info
Description *string `json:"description"`
Visibility todosrht.Visibility `json:"visibility"`
}
func (ex *TodoExporter) Export(ctx context.Context, dir string) error {
var cursor *todosrht.Cursor
var ret error
for {
trackers, err := todosrht.ExportTrackers(ex.client, ctx, cursor)
if err != nil {
return err
}
for _, tracker := range trackers.Results {
base := path.Join(dir, tracker.Name)
if err := ex.exportTracker(ctx, &tracker, base); err != nil {
var pe partialError
if errors.As(err, &pe) {
ret = err
continue
}
return err
}
}
cursor = trackers.Cursor
if cursor == nil {
break
}
}
return ret
}
func (ex *TodoExporter) ExportResource(ctx context.Context, dir, owner, resource string) error {
user, err := todosrht.ExportTracker(ex.client, ctx, owner, resource)
if err != nil {
return err
}
return ex.exportTracker(ctx, user.Tracker, dir)
}
func (ex *TodoExporter) exportTracker(ctx context.Context, tracker *todosrht.Tracker, base string) error {
infoPath := path.Join(base, infoFilename)
if _, err := os.Stat(infoPath); err == nil {
log.Printf("\tSkipping %s (already exists)", tracker.Name)
return nil
}
dataPath := path.Join(base, trackerFilename)
log.Printf("\t%s", tracker.Name)
if err := os.MkdirAll(base, 0o755); err != nil {
return err
}
req, err := http.NewRequestWithContext(ctx, http.MethodGet, string(tracker.Export), nil)
if err != nil {
return err
}
resp, err := ex.http.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return partialError{fmt.Errorf("%s: server returned non-200 status %d", tracker.Name, resp.StatusCode)}
}
f, err := os.Create(dataPath)
if err != nil {
return err
}
defer f.Close()
if _, err := io.Copy(f, resp.Body); err != nil {
return err
}
trackerInfo := TrackerInfo{
Info: Info{
Service: "todo.sr.ht",
Name: tracker.Name,
},
Description: tracker.Description,
Visibility: tracker.Visibility,
}
if err := writeJSON(infoPath, &trackerInfo); err != nil {
return err
}
return nil
}
func (ex *TodoExporter) ImportResource(ctx context.Context, dir string) error {
var info TrackerInfo
if err := readJSON(path.Join(dir, infoFilename), &info); err != nil {
return err
}
return ex.importTracker(ctx, &info, dir)
}
func (ex *TodoExporter) importTracker(ctx context.Context, tracker *TrackerInfo, base string) error {
f, err := os.Open(path.Join(base, trackerFilename))
if err != nil {
return err
}
defer f.Close()
_, err = todosrht.ImportTracker(ex.client, ctx, tracker.Name, tracker.Description, tracker.Visibility, gqlclient.Upload{
Filename: trackerFilename,
MIMEType: "application/gzip",
Body: f,
})
if err != nil {
return fmt.Errorf("failed to import issue tracker: %v", err)
}
return nil
}
|
