/
cmd_dumpversionassets.go
90 lines (78 loc) · 2.6 KB
/
cmd_dumpversionassets.go
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package commands
import (
"fmt"
"strings"
"time"
"github.com/DanEngelbrecht/golongtail/longtaillib"
"github.com/DanEngelbrecht/golongtail/longtailutils"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
func dumpVersionAssets(
numWorkerCount int,
versionIndexPath string,
s3EndpointResolverURI string,
showDetails bool) ([]longtailutils.StoreStat, []longtailutils.TimeStat, error) {
const fname = "dumpVersionAssets"
log := logrus.WithFields(logrus.Fields{
"fname": fname,
"numWorkerCount": numWorkerCount,
"s3EndpointResolverURI": s3EndpointResolverURI,
"versionIndexPath": versionIndexPath,
"showDetails": showDetails,
})
log.Info(fname)
storeStats := []longtailutils.StoreStat{}
timeStats := []longtailutils.TimeStat{}
readSourceStartTime := time.Now()
vbuffer, err := longtailutils.ReadFromURI(versionIndexPath, longtailutils.WithS3EndpointResolverURI(s3EndpointResolverURI))
if err != nil {
return storeStats, timeStats, errors.Wrap(err, fname)
}
versionIndex, err := longtaillib.ReadVersionIndexFromBuffer(vbuffer)
if err != nil {
err = errors.Wrapf(err, "Cant parse version index from `%s`", versionIndexPath)
return storeStats, timeStats, errors.Wrap(err, fname)
}
defer versionIndex.Dispose()
readSourceTime := time.Since(readSourceStartTime)
timeStats = append(timeStats, longtailutils.TimeStat{"Read source index", readSourceTime})
assetCount := versionIndex.GetAssetCount()
var biggestAsset uint64
biggestAsset = 0
for i := uint32(0); i < assetCount; i++ {
assetSize := versionIndex.GetAssetSize(i)
if assetSize > biggestAsset {
biggestAsset = assetSize
}
}
sizePadding := len(fmt.Sprintf("%d", biggestAsset))
for i := uint32(0); i < assetCount; i++ {
path := versionIndex.GetAssetPath(i)
if showDetails {
isDir := strings.HasSuffix(path, "/")
assetSize := versionIndex.GetAssetSize(i)
permissions := versionIndex.GetAssetPermissions(i)
detailsString := longtailutils.GetDetailsString(path, assetSize, permissions, isDir, sizePadding)
fmt.Printf("%s\n", detailsString)
} else {
fmt.Printf("%s\n", path)
}
}
return storeStats, timeStats, nil
}
type DumpVersionAssetsCmd struct {
VersionIndexPathOption
S3EndpointResolverURLOption
Details bool `name:"details" help:"Show details about assets"`
}
func (r *DumpVersionAssetsCmd) Run(ctx *Context) error {
storeStats, timeStats, err := dumpVersionAssets(
ctx.NumWorkerCount,
r.VersionIndexPath,
r.S3EndpointResolverURL,
r.Details)
ctx.StoreStats = append(ctx.StoreStats, storeStats...)
ctx.TimeStats = append(ctx.TimeStats, timeStats...)
return err
}