mirror of
https://github.com/kopia/kopia.git
synced 2026-01-25 23:08:01 -05:00
fa7976599c
- `repo.Repository` is now read-only and only has methods that can be supported over kopia server
- `repo.RepositoryWriter` has read-write methods that can be supported over kopia server
- `repo.DirectRepository` is read-only and contains all methods of `repo.Repository` plus some low-level methods for data inspection
- `repo.DirectRepositoryWriter` contains write methods for `repo.DirectRepository`
- `repo.Reader` removed and merged with `repo.Repository`
- `repo.Writer` became `repo.RepositoryWriter`
- `*repo.DirectRepository` struct became `repo.DirectRepository`
interface
Getting `{Direct}RepositoryWriter` requires using `NewWriter()` or `NewDirectWriter()` on a read-only repository and multiple simultaneous writers are supported at the same time, each writing to their own indexes and pack blobs.
`repo.Open` returns `repo.Repository` (which is also `repo.RepositoryWriter`).
* content: removed implicit flush on content manager close
* repo: added tests for WriteSession() and implicit flush behavior
* invalidate manifest manager after write session
* cli: disable maintenance in 'kopia server start'
Server will close the repository before completing.
* repo: unconditionally close RepositoryWriter in {Direct,}WriteSession
* repo: added panic in case somebody tries to create RepositoryWriter after closing repository
- used atomic to manage SharedManager.closed
* removed stale example
* linter: fixed spurious failures
Co-authored-by: Julio López <julio+gh@kasten.io>
87 lines
1.7 KiB
Go
87 lines
1.7 KiB
Go
package cli
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import (
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"bytes"
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"context"
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"encoding/json"
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"io"
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"os"
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"github.com/pkg/errors"
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"github.com/kopia/kopia/internal/iocopy"
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"github.com/kopia/kopia/repo"
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"github.com/kopia/kopia/repo/blob"
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)
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var (
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blobShowCommand = blobCommands.Command("show", "Show contents of BLOBs").Alias("cat")
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blobShowDecrypt = blobShowCommand.Flag("decrypt", "Decrypt blob if possible").Bool()
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blobShowIDs = blobShowCommand.Arg("blobID", "Blob IDs").Required().Strings()
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)
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func runBlobShow(ctx context.Context, rep repo.DirectRepository) error {
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for _, blobID := range *blobShowIDs {
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if err := maybeDecryptBlob(ctx, os.Stdout, rep, blob.ID(blobID)); err != nil {
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return errors.Wrap(err, "error presenting blob")
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}
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}
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return nil
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}
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func maybeDecryptBlob(ctx context.Context, w io.Writer, rep repo.DirectRepository, blobID blob.ID) error {
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var (
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d []byte
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err error
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)
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if *blobShowDecrypt && canDecryptBlob(blobID) {
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d, err = rep.IndexBlobReader().DecryptBlob(ctx, blobID)
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if isJSONBlob(blobID) && err == nil {
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var b bytes.Buffer
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if err = json.Indent(&b, d, "", " "); err != nil {
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return errors.Wrap(err, "invalid JSON")
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}
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d = b.Bytes()
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}
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} else {
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d, err = rep.BlobReader().GetBlob(ctx, blobID, 0, -1)
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}
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if err != nil {
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return errors.Wrapf(err, "error getting %v", blobID)
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}
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if _, err := iocopy.Copy(w, bytes.NewReader(d)); err != nil {
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return errors.Wrap(err, "error copying data")
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}
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return nil
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}
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func canDecryptBlob(b blob.ID) bool {
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switch b[0] {
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case 'n', 'm', 'l':
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return true
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default:
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return false
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}
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}
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func isJSONBlob(b blob.ID) bool {
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switch b[0] {
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case 'm', 'l':
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return true
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default:
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return false
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}
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}
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func init() {
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blobShowCommand.Action(directRepositoryReadAction(runBlobShow))
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}
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