func runDs(args []string) int {
if toDelete != "" {
set, err := spec.GetDataset(toDelete)
d.CheckError(err)
oldCommitRef, errBool := set.MaybeHeadRef()
if !errBool {
d.CheckError(fmt.Errorf("Dataset %v not found", set.ID()))
}
store, err := set.Database().Delete(set.ID())
d.CheckError(err)
defer store.Close()
fmt.Printf("Deleted dataset %v (was %v)\n\n", set.ID(), oldCommitRef.TargetHash().String())
} else {
if len(args) != 1 {
d.CheckError(fmt.Errorf("Database arg missing"))
}
store, err := spec.GetDatabase(args[0])
d.CheckError(err)
defer store.Close()
store.Datasets().IterAll(func(k, v types.Value) {
fmt.Println(k)
})
}
return 0
}
func main() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "usage: %s <url> <dataset>\n", os.Args[0])
flag.PrintDefaults()
}
spec.RegisterDatabaseFlags(flag.CommandLine)
flag.Parse(true)
if len(flag.Args()) != 2 {
d.CheckError(errors.New("expected url and dataset flags"))
}
ds, err := spec.GetDataset(flag.Arg(1))
d.CheckError(err)
url := flag.Arg(0)
if url == "" {
flag.Usage()
}
res, err := http.Get(url)
if err != nil {
log.Fatalf("Error fetching %s: %+v\n", url, err)
} else if res.StatusCode != 200 {
log.Fatalf("Error fetching %s: %s\n", url, res.Status)
}
defer res.Body.Close()
var jsonObject interface{}
err = json.NewDecoder(res.Body).Decode(&jsonObject)
if err != nil {
log.Fatalln("Error decoding JSON: ", err)
}
_, err = ds.CommitValue(jsontonoms.NomsValueFromDecodedJSON(jsonObject, true))
d.PanicIfError(err)
ds.Database().Close()
}
func main() {
// Actually the delimiter uses runes, which can be multiple characters long.
// https://blog.golang.org/strings
delimiter := flag.String("delimiter", ",", "field delimiter for csv file, must be exactly one character long.")
spec.RegisterDatabaseFlags(flag.CommandLine)
profile.RegisterProfileFlags(flag.CommandLine)
flag.Usage = func() {
fmt.Fprintln(os.Stderr, "Usage: csv-export [options] dataset > filename")
flag.PrintDefaults()
}
flag.Parse(true)
if flag.NArg() != 1 {
d.CheckError(errors.New("expected dataset arg"))
}
ds, err := spec.GetDataset(flag.Arg(0))
d.CheckError(err)
defer ds.Database().Close()
comma, err := csv.StringToRune(*delimiter)
d.CheckError(err)
err = d.Try(func() {
defer profile.MaybeStartProfile().Stop()
nomsList, structDesc := csv.ValueToListAndElemDesc(ds.HeadValue(), ds.Database())
csv.Write(nomsList, structDesc, comma, os.Stdout)
})
if err != nil {
fmt.Println("Failed to export dataset as CSV:")
fmt.Println(err)
}
}
func main() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "usage: %s <dataset> <file>\n", os.Args[0])
flag.PrintDefaults()
}
spec.RegisterDatabaseFlags(flag.CommandLine)
flag.Parse(true)
if len(flag.Args()) != 2 {
d.CheckError(errors.New("expected dataset and file flags"))
}
var blob types.Blob
path := flag.Arg(0)
if db, val, err := spec.GetPath(path); err != nil {
d.CheckErrorNoUsage(err)
} else if val == nil {
d.CheckErrorNoUsage(fmt.Errorf("No value at %s", path))
} else if b, ok := val.(types.Blob); !ok {
d.CheckErrorNoUsage(fmt.Errorf("Value at %s is not a blob", path))
} else {
defer db.Close()
blob = b
}
filePath := flag.Arg(1)
if filePath == "" {
d.CheckErrorNoUsage(errors.New("Empty file path"))
}
// Note: overwrites any existing file.
file, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE, 0644)
d.CheckErrorNoUsage(err)
defer file.Close()
expected := humanize.Bytes(blob.Len())
start := time.Now()
progReader := progressreader.New(blob.Reader(), func(seen uint64) {
elapsed := time.Since(start).Seconds()
rate := uint64(float64(seen) / elapsed)
status.Printf("%s of %s written in %ds (%s/s)...", humanize.Bytes(seen), expected, int(elapsed), humanize.Bytes(rate))
})
io.Copy(file, progReader)
status.Done()
}
func runLog(args []string) int {
useColor = shouldUseColor()
database, value, err := spec.GetPath(args[0])
if err != nil {
d.CheckErrorNoUsage(err)
}
defer database.Close()
if value == nil {
d.CheckErrorNoUsage(fmt.Errorf("Object not found: %s", args[0]))
}
origCommit, ok := value.(types.Struct)
if !ok || !datas.IsCommitType(origCommit.Type()) {
d.CheckError(fmt.Errorf("%s does not reference a Commit object", args[0]))
}
iter := NewCommitIterator(database, origCommit)
displayed := 0
if maxCommits <= 0 {
maxCommits = math.MaxInt32
}
inChan := make(chan interface{}, parallelism)
outChan := orderedparallel.New(inChan, func(node interface{}) interface{} {
buff := &bytes.Buffer{}
printCommit(node.(LogNode), buff, database)
return buff.Bytes()
}, parallelism)
go func() {
for ln, ok := iter.Next(); ok && displayed < maxCommits; ln, ok = iter.Next() {
inChan <- ln
displayed++
}
close(inChan)
}()
pgr := outputpager.Start()
defer pgr.Stop()
for commitBuff := range outChan {
io.Copy(pgr.Writer, bytes.NewReader(commitBuff.([]byte)))
}
return 0
}
func runServe(args []string) int {
cs, err := spec.GetChunkStore(args[0])
d.CheckError(err)
server := datas.NewRemoteDatabaseServer(cs, port)
// Shutdown server gracefully so that profile may be written
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
signal.Notify(c, syscall.SIGTERM)
go func() {
<-c
server.Stop()
}()
d.Try(func() {
defer profile.MaybeStartProfile().Stop()
server.Run()
})
return 0
}
func main() {
err := d.Try(func() {
spec.RegisterDatabaseFlags(flag.CommandLine)
profile.RegisterProfileFlags(flag.CommandLine)
flag.Usage = customUsage
flag.Parse(true)
if flag.NArg() != 2 {
d.CheckError(errors.New("Expected directory path followed by dataset"))
}
dir := flag.Arg(0)
ds, err := spec.GetDataset(flag.Arg(1))
d.CheckError(err)
defer profile.MaybeStartProfile().Stop()
cpuCount := runtime.NumCPU()
filesChan := make(chan fileIndex, 1024)
refsChan := make(chan refIndex, 1024)
getFilePaths := func() {
index := 0
err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
d.PanicIfTrue(err != nil, "Cannot traverse directories")
if !info.IsDir() && filepath.Ext(path) == ".xml" {
filesChan <- fileIndex{path, index}
index++
}
return nil
})
d.PanicIfError(err)
close(filesChan)
}
wg := sync.WaitGroup{}
importXML := func() {
expectedType := types.NewMap()
for f := range filesChan {
file, err := os.Open(f.path)
d.PanicIfTrue(err != nil, "Error getting XML")
xmlObject, err := mxj.NewMapXmlReader(file)
d.PanicIfTrue(err != nil, "Error decoding XML")
object := xmlObject.Old()
file.Close()
nomsObj := jsontonoms.NomsValueFromDecodedJSON(object, false)
d.Chk.IsType(expectedType, nomsObj)
var r types.Ref
if !*noIO {
r = ds.Database().WriteValue(nomsObj)
}
refsChan <- refIndex{r, f.index}
}
wg.Done()
}
go getFilePaths()
for i := 0; i < cpuCount*8; i++ {
wg.Add(1)
go importXML()
}
go func() {
wg.Wait()
close(refsChan) // done converting xml to noms
}()
refList := refIndexList{}
for r := range refsChan {
refList = append(refList, r)
}
sort.Sort(refList)
refs := make([]types.Value, len(refList))
for idx, r := range refList {
refs[idx] = r.ref
}
rl := types.NewList(refs...)
if !*noIO {
_, err := ds.CommitValue(rl)
d.PanicIfError(err)
}
})
if err != nil {
log.Fatal(err)
}
}
func main() {
// Actually the delimiter uses runes, which can be multiple characters long.
// https://blog.golang.org/strings
delimiter := flag.String("delimiter", ",", "field delimiter for csv file, must be exactly one character long.")
comment := flag.String("comment", "", "comment to add to commit's meta data")
header := flag.String("header", "", "header row. If empty, we'll use the first row of the file")
name := flag.String("name", "Row", "struct name. The user-visible name to give to the struct type that will hold each row of data.")
columnTypes := flag.String("column-types", "", "a comma-separated list of types representing the desired type of each column. if absent all types default to be String")
pathDescription := "noms path to blob to import"
path := flag.String("path", "", pathDescription)
flag.StringVar(path, "p", "", pathDescription)
dateFlag := flag.String("date", "", fmt.Sprintf(`date of commit in ISO 8601 format ("%s"). By default, the current date is used.`, dateFormat))
noProgress := flag.Bool("no-progress", false, "prevents progress from being output if true")
destType := flag.String("dest-type", "list", "the destination type to import to. can be 'list' or 'map:<pk>', where <pk> is the index position (0-based) of the column that is a the unique identifier for the column")
skipRecords := flag.Uint("skip-records", 0, "number of records to skip at beginning of file")
destTypePattern := regexp.MustCompile("^(list|map):(\\d+)$")
spec.RegisterDatabaseFlags(flag.CommandLine)
profile.RegisterProfileFlags(flag.CommandLine)
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: csv-import [options] <csvfile> <dataset>\n\n")
flag.PrintDefaults()
}
flag.Parse(true)
var err error
switch {
case flag.NArg() == 0:
err = errors.New("Maybe you put options after the dataset?")
case flag.NArg() == 1 && *path == "":
err = errors.New("If <csvfile> isn't specified, you must specify a noms path with -p")
case flag.NArg() == 2 && *path != "":
err = errors.New("Cannot specify both <csvfile> and a noms path with -p")
case flag.NArg() > 2:
err = errors.New("Too many arguments")
}
d.CheckError(err)
var date = *dateFlag
if date == "" {
date = time.Now().UTC().Format(dateFormat)
} else {
_, err := time.Parse(dateFormat, date)
d.CheckErrorNoUsage(err)
}
defer profile.MaybeStartProfile().Stop()
var r io.Reader
var size uint64
var filePath string
var dataSetArgN int
if *path != "" {
db, val, err := spec.GetPath(*path)
d.CheckError(err)
if val == nil {
d.CheckError(fmt.Errorf("Path %s not found\n", *path))
}
blob, ok := val.(types.Blob)
if !ok {
d.CheckError(fmt.Errorf("Path %s not a Blob: %s\n", *path, types.EncodedValue(val.Type())))
}
defer db.Close()
r = blob.Reader()
size = blob.Len()
dataSetArgN = 0
} else {
filePath = flag.Arg(0)
res, err := os.Open(filePath)
d.CheckError(err)
defer res.Close()
fi, err := res.Stat()
d.CheckError(err)
r = res
size = uint64(fi.Size())
dataSetArgN = 1
}
if !*noProgress {
r = progressreader.New(r, getStatusPrinter(size))
}
comma, err := csv.StringToRune(*delimiter)
d.CheckErrorNoUsage(err)
var dest int
var pk int
if *destType == "list" {
dest = destList
} else if match := destTypePattern.FindStringSubmatch(*destType); match != nil {
dest = destMap
pk, err = strconv.Atoi(match[2])
d.CheckErrorNoUsage(err)
} else {
fmt.Println("Invalid dest-type: ", *destType)
return
}
cr := csv.NewCSVReader(r, comma)
for i := uint(0); i < *skipRecords; i++ {
cr.Read()
}
var headers []string
if *header == "" {
headers, err = cr.Read()
d.PanicIfError(err)
} else {
headers = strings.Split(*header, string(comma))
}
ds, err := spec.GetDataset(flag.Arg(dataSetArgN))
d.CheckError(err)
defer ds.Database().Close()
kinds := []types.NomsKind{}
if *columnTypes != "" {
kinds = csv.StringsToKinds(strings.Split(*columnTypes, ","))
}
var value types.Value
if dest == destList {
value, _ = csv.ReadToList(cr, *name, headers, kinds, ds.Database())
} else {
value = csv.ReadToMap(cr, headers, pk, kinds, ds.Database())
}
mi := metaInfoForCommit(date, filePath, *path, *comment)
_, err = ds.Commit(value, dataset.CommitOptions{Meta: mi})
if !*noProgress {
status.Clear()
}
d.PanicIfError(err)
}