Files
kopia/cli/command_block_index_show.go
2018-04-08 18:45:22 -07:00

112 lines
2.7 KiB
Go

package cli
import (
"context"
"fmt"
"sort"
"time"
"github.com/gogo/protobuf/proto"
"github.com/kopia/kopia/block"
"github.com/kopia/kopia/internal/blockmgrpb"
"github.com/kopia/kopia/repo"
)
var (
blockIndexShowCommand = blockIndexCommands.Command("show", "List block indexes").Alias("cat")
blockIndexShowSort = blockIndexShowCommand.Flag("sort", "Sort order").Default("offset").Enum("offset", "blockID", "size")
blockIndexShowIDs = blockIndexShowCommand.Arg("id", "IDs of index blocks to show").Required().Strings()
)
type blockIndexEntryInfo struct {
blockID string
offset uint32
size uint32
inline bool
}
func runShowBlockIndexesAction(ctx context.Context, rep *repo.Repository) error {
var blockIDs []block.PhysicalBlockID
for _, id := range *blockIndexShowIDs {
blockIDs = append(blockIDs, block.PhysicalBlockID(id))
}
if len(blockIDs) == 1 && blockIDs[0] == "active" {
b, err := rep.Blocks.ActiveIndexBlocks(ctx)
if err != nil {
return err
}
sort.Slice(b, func(i, j int) bool {
return b[i].Timestamp.Before(b[j].Timestamp)
})
blockIDs = nil
for _, bi := range b {
blockIDs = append(blockIDs, bi.BlockID)
}
}
for _, blockID := range blockIDs {
data, err := rep.Blocks.GetIndexBlock(ctx, blockID)
if err != nil {
return fmt.Errorf("can't read block %q: %v", blockID, err)
}
var d blockmgrpb.Indexes
if err := proto.Unmarshal(data, &d); err != nil {
return err
}
for _, ndx := range d.IndexesV1 {
printIndexV1(ndx)
}
}
return nil
}
func printIndexV1(ndx *blockmgrpb.IndexV1) {
fmt.Printf("pack:%v len:%v created:%v\n", ndx.PackBlockId, ndx.PackLength, time.Unix(0, int64(ndx.CreateTimeNanos)).Local())
var lines []blockIndexEntryInfo
for blk, os := range ndx.Items {
lines = append(lines, blockIndexEntryInfo{blk, uint32(os >> 32), uint32(os), false})
}
for blk, d := range ndx.InlineItems {
lines = append(lines, blockIndexEntryInfo{blk, 0, uint32(len(d)), true})
}
sortIndexBlocks(lines)
for _, l := range lines {
if l.inline {
fmt.Printf(" added %-40v size:%v (inline)\n", l.blockID, l.size)
} else {
fmt.Printf(" added %-40v offset:%-10v size:%v\n", l.blockID, l.offset, l.size)
}
}
for _, del := range ndx.DeletedItems {
fmt.Printf(" deleted %v\n", del)
}
}
func sortIndexBlocks(lines []blockIndexEntryInfo) {
switch *blockIndexShowSort {
case "offset":
sort.Slice(lines, func(i, j int) bool {
return lines[i].offset < lines[j].offset
})
case "blockID":
sort.Slice(lines, func(i, j int) bool {
return lines[i].blockID < lines[j].blockID
})
case "size":
sort.Slice(lines, func(i, j int) bool {
return lines[i].size < lines[j].size
})
}
}
func init() {
blockIndexShowCommand.Action(repositoryAction(runShowBlockIndexesAction))
}