Keepers c58cd9302f
move /cli/config to /pkg (#4858)
Part 1 of two changes I've been carting around since the hackathon.
This PR moves the /cli/config package into /pkg/config.  This allows
sdk consumers to access corso configuration handling, intead of
requiring the CLI package to access it.

---

#### Does this PR need a docs update or release note?

- [x]  No

#### Type of change

- [x] 🤖 Supportability/Tests


#### Test Plan

- [x] 💪 Manual
- [x]  Unit test
- [x] 💚 E2E
2023-12-18 18:24:33 +00:00

97 lines
2.1 KiB
Go

package archive
import (
"archive/zip"
"context"
"io"
"path"
"github.com/alcionai/clues"
"github.com/alcionai/corso/src/pkg/dttm"
"github.com/alcionai/corso/src/pkg/export"
)
const (
// ZipCopyBufferSize is the size of the copy buffer for zip
// write operations
ZipCopyBufferSize = 5 * 1024 * 1024
)
type zipCollection struct {
reader io.ReadCloser
}
func (z zipCollection) BasePath() string {
return ""
}
func (z zipCollection) Items(ctx context.Context) <-chan export.Item {
rc := make(chan export.Item, 1)
defer close(rc)
rc <- export.Item{
Name: "Corso_Export_" + dttm.FormatNow(dttm.HumanReadable) + ".zip",
Body: z.reader,
}
return rc
}
// ZipExportCollection takes a list of export collections and zips
// them into a single collection.
func ZipExportCollection(
ctx context.Context,
expCollections []export.Collectioner,
) (export.Collectioner, error) {
if len(expCollections) == 0 {
return nil, clues.New("no export collections provided")
}
reader, writer := io.Pipe()
wr := zip.NewWriter(writer)
go func() {
defer writer.Close()
defer wr.Close()
buf := make([]byte, ZipCopyBufferSize)
for _, ec := range expCollections {
folder := ec.BasePath()
items := ec.Items(ctx)
for item := range items {
err := item.Error
if err != nil {
writer.CloseWithError(clues.Wrap(err, "getting export item").With("id", item.ID))
return
}
name := item.Name
// We assume folder and name to not contain any path separators.
// Also, this should always use `/` as this is
// created within a zip file and not written to disk.
// TODO(meain): Exchange paths might contain a path
// separator and will have to have special handling.
//nolint:forbidigo
f, err := wr.Create(path.Join(folder, name))
if err != nil {
writer.CloseWithError(clues.Wrap(err, "creating zip entry").With("name", name).With("id", item.ID))
return
}
_, err = io.CopyBuffer(f, item.Body, buf)
if err != nil {
writer.CloseWithError(clues.Wrap(err, "writing zip entry").With("name", name).With("id", item.ID))
return
}
}
}
}()
return zipCollection{reader}, nil
}