コード例 #1
0
ファイル: exporter.go プロジェクト: willhite/noms-old
func main() {
	spec.RegisterDatabaseFlags()
	cpuCount := runtime.NumCPU()
	runtime.GOMAXPROCS(cpuCount)

	flag.Usage = func() {
		fmt.Fprintln(os.Stderr, "Usage: csv-export [options] dataset > filename")
		flag.PrintDefaults()
	}

	flag.Parse()

	if flag.NArg() != 1 {
		util.CheckError(errors.New("expected dataset arg"))
	}

	ds, err := spec.GetDataset(flag.Arg(0))
	util.CheckError(err)

	defer ds.Database().Close()

	comma, err := csv.StringToRune(*delimiter)
	util.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)
	}
}
コード例 #2
0
ファイル: counter.go プロジェクト: Richardphp/noms
func main() {
	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "usage: %s [options] <dataset>\n", os.Args[0])
		flag.PrintDefaults()
	}

	spec.RegisterDatabaseFlags(flag.CommandLine)

	flag.Parse(true)

	if flag.NArg() != 1 {
		fmt.Fprintln(os.Stderr, "Missing required dataset argument")
		return
	}

	ds, err := spec.GetDataset(flag.Arg(0))
	if err != nil {
		fmt.Fprintf(os.Stderr, "Could not create dataset: %s\n", err)
		return
	}
	defer ds.Database().Close()

	newVal := uint64(1)
	if lastVal, ok := ds.MaybeHeadValue(); ok {
		newVal = uint64(lastVal.(types.Number)) + 1
	}

	_, err = ds.CommitValue(types.Number(newVal))
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error committing: %s\n", err)
		return
	}

	fmt.Println(newVal)
}
コード例 #3
0
ファイル: nomsfs.go プロジェクト: Richardphp/noms
func start(dataset string, mount mount) {
	ds, err := spec.GetDataset(dataset)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Could not create dataset: %s\n", err)
		return
	}

	hv, ok := ds.MaybeHeadValue()
	if ok {
		if !types.IsSubtype(fsType, hv.Type()) {
			fmt.Fprintf(os.Stderr, "Invalid dataset head: expected type '%s' but found type '%s'\n", fsType.Desc.(types.StructDesc).Name, hv.Type().Desc.(types.StructDesc).Name)
			return
		}
	} else {
		rootAttr := makeAttr(0777) // create the root directory with maximally permissive permissions
		rootDir := types.NewStructWithType(directoryType, types.ValueSlice{types.NewMap()})
		rootInode := types.NewStructWithType(inodeType, types.ValueSlice{rootAttr, rootDir})
		hv = types.NewStructWithType(fsType, types.ValueSlice{rootInode})
	}

	mount(&nomsFS{
		FileSystem: pathfs.NewDefaultFileSystem(),
		ds:         ds,
		head:       hv.(types.Struct),
		mdLock:     &sync.Mutex{},
		nodes:      make(map[hash.Hash]*nNode),
	})
}
コード例 #4
0
ファイル: noms_diff_test.go プロジェクト: Richardphp/noms
func (s *nomsDiffTestSuite) TestNomsDiffSummarize() {
	datasetName := "diffSummarizeTest"
	str := spec.CreateValueSpecString("ldb", s.LdbDir, datasetName)
	ds, err := spec.GetDataset(str)
	s.NoError(err)
	defer ds.Database().Close()

	ds, err = addCommit(ds, "first commit")
	s.NoError(err)
	r1 := spec.CreateHashSpecString("ldb", s.LdbDir, ds.HeadRef().TargetHash())

	ds, err = addCommit(ds, "second commit")
	s.NoError(err)
	r2 := spec.CreateHashSpecString("ldb", s.LdbDir, ds.HeadRef().TargetHash())

	out, _ := s.Run(main, []string{"diff", "--summarize", r1, r2})
	s.Contains(out, "Comparing commit values")
	s.Contains(out, "1 insertion (100.00%), 1 deletion (100.00%), 0 changes (0.00%), (1 value vs 1 value)")

	out, _ = s.Run(main, []string{"diff", "--summarize", r1 + ".value", r2 + ".value"})
	s.NotContains(out, "Comparing commit values")

	ds, err = ds.CommitValue(types.NewList(types.Number(1), types.Number(2), types.Number(3), types.Number(4)))
	s.NoError(err)
	r3 := spec.CreateHashSpecString("ldb", s.LdbDir, ds.HeadRef().TargetHash()) + ".value"

	ds, err = ds.CommitValue(types.NewList(types.Number(1), types.Number(222), types.Number(4)))
	s.NoError(err)
	r4 := spec.CreateHashSpecString("ldb", s.LdbDir, ds.HeadRef().TargetHash()) + ".value"

	out, _ = s.Run(main, []string{"diff", "--summarize", r3, r4})
	s.Contains(out, "1 insertion (25.00%), 2 deletions (50.00%), 0 changes (0.00%), (4 values vs 3 values)")
}
コード例 #5
0
ファイル: noms_ds.go プロジェクト: kalman/noms-pre-release
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
}
コード例 #6
0
ファイル: counter.go プロジェクト: willhite/noms-old
func main() {
	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "usage: %s [options] <dataset>\n", os.Args[0])
		flag.PrintDefaults()
	}

	spec.RegisterDatabaseFlags()
	flag.Parse()

	if flag.NArg() != 1 {
		util.CheckError(errors.New("expected dataset arg"))
	}

	ds, err := spec.GetDataset(flag.Arg(0))
	util.CheckError(err)

	defer ds.Database().Close()

	newVal := uint64(1)
	if lastVal, ok := ds.MaybeHeadValue(); ok {
		newVal = uint64(lastVal.(types.Number)) + 1
	}
	_, err = ds.Commit(types.Number(newVal))
	d.Exp.NoError(err)

	fmt.Println(newVal)
}
コード例 #7
0
ファイル: noms_log_test.go プロジェクト: Richardphp/noms
func testCommitInResults(s *nomsLogTestSuite, str string, i int) {
	ds, err := spec.GetDataset(str)
	s.NoError(err)
	ds, err = ds.CommitValue(types.Number(i))
	s.NoError(err)
	commit := ds.Head()
	ds.Database().Close()
	res, _ := s.Run(main, []string{"log", str})
	s.Contains(res, commit.Hash().String())
}
コード例 #8
0
ファイル: noms_log_test.go プロジェクト: Richardphp/noms
func (s *nomsLogTestSuite) TestNomsLog() {
	datasetName := "dsTest"
	str := spec.CreateValueSpecString("ldb", s.LdbDir, datasetName)
	ds, err := spec.GetDataset(str)
	s.NoError(err)

	ds.Database().Close()
	s.Panics(func() { s.Run(main, []string{"log", str}) })

	testCommitInResults(s, str, 1)
	testCommitInResults(s, str, 2)
}
コード例 #9
0
ファイル: noms_show_test.go プロジェクト: Richardphp/noms
func writeTestData(str string, value types.Value) types.Ref {
	ds, err := spec.GetDataset(str)
	d.Chk.NoError(err)

	r1 := ds.Database().WriteValue(value)
	ds, err = ds.CommitValue(r1)
	d.Chk.NoError(err)

	err = ds.Database().Close()
	d.Chk.NoError(err)
	return r1
}
コード例 #10
0
ファイル: noms_diff_test.go プロジェクト: Richardphp/noms
func (s *nomsDiffTestSuite) TestNomsDiffOutputNotTruncated() {
	datasetName := "diffTest"
	str := spec.CreateValueSpecString("ldb", s.LdbDir, datasetName)
	ds, err := spec.GetDataset(str)
	s.NoError(err)

	ds, err = addCommit(ds, "first commit")
	s.NoError(err)
	r1 := spec.CreateValueSpecString("ldb", s.LdbDir, "#"+ds.HeadRef().TargetHash().String())

	ds, err = addCommit(ds, "second commit")
	s.NoError(err)
	r2 := spec.CreateValueSpecString("ldb", s.LdbDir, "#"+ds.HeadRef().TargetHash().String())

	ds.Database().Close()
	out, _ := s.Run(main, []string{"diff", r1, r2})
	s.True(strings.HasSuffix(out, "\"second commit\"\n  }\n"), out)
}
コード例 #11
0
ファイル: noms_ds.go プロジェクト: willhite/noms-old
func main() {
	toDelete := flag.String("d", "", "dataset to delete")

	flag.Usage = func() {
		fmt.Fprintln(os.Stderr, "Noms dataset management\n")
		fmt.Fprintln(os.Stderr, "Usage: noms ds [<database> | -d <dataset>]")
		flag.PrintDefaults()
		fmt.Fprintf(os.Stderr, "\nFor detailed information on spelling datastores and datasets, see: at https://github.com/attic-labs/noms/blob/master/doc/spelling.md.\n\n")
	}

	flag.Parse()

	if *toDelete != "" {
		set, err := spec.GetDataset(*toDelete)
		util.CheckError(err)

		oldCommitRef, errBool := set.MaybeHeadRef()
		if !errBool {
			util.CheckError(fmt.Errorf("Dataset %v not found", set.ID()))
		}

		store, err := set.Database().Delete(set.ID())
		util.CheckError(err)
		defer store.Close()

		fmt.Printf("Deleted dataset %v (was %v)\n\n", set.ID(), oldCommitRef.TargetHash().String())
	} else {
		if flag.NArg() != 1 {
			flag.Usage()
			return
		}

		store, err := spec.GetDatabase(flag.Arg(0))
		util.CheckError(err)
		defer store.Close()

		store.Datasets().IterAll(func(k, v types.Value) {
			fmt.Println(k)
		})
	}

}
コード例 #12
0
ファイル: main.go プロジェクト: willhite/noms-old
func main() {
	var dsStr = flag.String("ds", "", "noms dataset to read/write from")

	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "Usage: %s [flags] [command] [command-args]\n\n", os.Args[0])
		fmt.Fprintln(os.Stderr, "Flags:")
		flag.PrintDefaults()
		fmt.Fprintln(os.Stderr, "\nCommands:")
		fmt.Fprintln(os.Stderr, "\tadd-person <id> <name> <title>")
		fmt.Fprintln(os.Stderr, "\tlist-persons")
	}

	flag.Parse()

	if flag.NArg() == 0 {
		fmt.Fprintln(os.Stderr, "Not enough arguments")
		return
	}

	if *dsStr == "" {
		fmt.Fprintln(os.Stderr, "Required flag '-ds' not set")
		return
	}

	ds, err := spec.GetDataset(*dsStr)
	defer ds.Database().Close()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Could not create dataset: %s\n", err)
		return
	}

	switch flag.Arg(0) {
	case "add-person":
		addPerson(ds)
	case "list-persons":
		listPersons(ds)
	default:
		fmt.Fprintf(os.Stderr, "Unknown command: %s\n", flag.Arg(0))
	}
}
コード例 #13
0
ファイル: json_importer.go プロジェクト: Richardphp/noms
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()
}
コード例 #14
0
ファイル: noms_sync.go プロジェクト: willhite/noms-old
func main() {
	cpuCount := runtime.NumCPU()
	runtime.GOMAXPROCS(cpuCount)

	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "Moves datasets between or within databases\n\n")
		fmt.Fprintf(os.Stderr, "noms sync [options] <source-object> <dest-dataset>\n\n")
		flag.PrintDefaults()
		fmt.Fprintf(os.Stderr, "\nFor detailed information on spelling objects and datasets, see: at https://github.com/attic-labs/noms/blob/master/doc/spelling.md.\n\n")
	}

	spec.RegisterDatabaseFlags()
	flag.Parse()

	if flag.NArg() != 2 {
		util.CheckError(errors.New("expected a source object and destination dataset"))
	}

	sourceStore, sourceObj, err := spec.GetPath(flag.Arg(0))
	util.CheckError(err)
	defer sourceStore.Close()

	sinkDataset, err := spec.GetDataset(flag.Arg(1))
	util.CheckError(err)
	defer sinkDataset.Database().Close()

	err = d.Try(func() {
		defer profile.MaybeStartProfile().Stop()

		var err error
		sinkDataset, err = sinkDataset.Pull(sourceStore, types.NewRef(sourceObj), int(*p))
		d.Exp.NoError(err)
	})

	if err != nil {
		log.Fatal(err)
	}
}
コード例 #15
0
ファイル: exporter.go プロジェクト: Richardphp/noms
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)
	}
}
コード例 #16
0
ファイル: fetch.go プロジェクト: Richardphp/noms
func main() {
	comment := flag.String("comment", "", "comment to add to commit's meta data")
	stdin := flag.Bool("stdin", false, "read blob from stdin")

	spec.RegisterDatabaseFlags(flag.CommandLine)

	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "Fetches a URL, file, or stdin into a noms blob\n\nUsage: %s [--stdin?] [url-or-local-path?] [dataset]\n", os.Args[0])
		flag.PrintDefaults()
	}
	flag.Parse(true)

	if !(*stdin && flag.NArg() == 1) && flag.NArg() != 2 {
		flag.Usage()
		os.Exit(-1)
	}

	start = time.Now()

	ds, err := spec.GetDataset(flag.Arg(flag.NArg() - 1))
	d.CheckErrorNoUsage(err)
	defer ds.Database().Close()

	var r io.Reader
	var contentLength int64
	var sourceType, sourceVal string

	if *stdin {
		r = os.Stdin
		contentLength = -1
	} else if url := flag.Arg(0); strings.HasPrefix(url, "http") {
		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Could not fetch url %s, error: %s\n", url, err)
			return
		}

		switch resp.StatusCode / 100 {
		case 4, 5:
			fmt.Fprintf(os.Stderr, "Could not fetch url %s, error: %d (%s)\n", url, resp.StatusCode, resp.Status)
			return
		}

		r = resp.Body
		contentLength = resp.ContentLength
		sourceType, sourceVal = "url", url
	} else {
		// assume it's a file
		f, err := os.Open(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Invalid URL %s - does not start with 'http' and isn't local file either. fopen error: %s", url, err)
			return
		}

		s, err := f.Stat()
		if err != nil {
			fmt.Fprintf(os.Stderr, "Could not stat file %s: %s", url, err)
			return
		}

		r = f
		contentLength = s.Size()
		sourceType, sourceVal = "file", url
	}

	pr := progressreader.New(r, getStatusPrinter(contentLength))
	b := types.NewStreamingBlob(pr, ds.Database())
	mi := metaInfoForCommit(sourceType, sourceVal, *comment)
	ds, err = ds.Commit(b, dataset.CommitOptions{Meta: mi})
	if err != nil {
		d.Chk.Equal(datas.ErrMergeNeeded, err)
		fmt.Fprintf(os.Stderr, "Could not commit, optimistic concurrency failed.")
		return
	}

	status.Done()
	fmt.Println("Done")
}
コード例 #17
0
ファイル: xml_importer.go プロジェクト: Richardphp/noms
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)
	}
}
コード例 #18
0
ファイル: importer.go プロジェクト: Richardphp/noms
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)
}
コード例 #19
0
ファイル: fetch.go プロジェクト: willhite/noms-old
func main() {
	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "Fetches a URL into a noms blob\n\nUsage: %s <dataset> <url>:\n", os.Args[0])
		flag.PrintDefaults()
	}

	spec.RegisterDatabaseFlags()
	flag.Parse()

	if flag.NArg() != 2 {
		util.CheckError(errors.New("expected dataset and url arguments"))
	}

	ds, err := spec.GetDataset(flag.Arg(0))
	util.CheckError(err)
	defer ds.Database().Close()

	url := flag.Arg(1)
	start = time.Now()

	var pr io.Reader

	if strings.HasPrefix(url, "http") {
		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Could not fetch url %s, error: %s\n", url, err)
			return
		}

		switch resp.StatusCode / 100 {
		case 4, 5:
			fmt.Fprintf(os.Stderr, "Could not fetch url %s, error: %d (%s)\n", url, resp.StatusCode, resp.Status)
			return
		}

		pr = progressreader.New(resp.Body, getStatusPrinter(resp.ContentLength))
	} else {
		// assume it's a file
		f, err := os.Open(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Invalid URL %s - does not start with 'http' and isn't local file either. fopen error: %s", url, err)
			return
		}

		s, err := f.Stat()
		if err != nil {
			fmt.Fprintf(os.Stderr, "Could not stat file %s: %s", url, err)
			return
		}

		pr = progressreader.New(f, getStatusPrinter(s.Size()))
	}

	b := types.NewBlob(pr)
	ds, err = ds.Commit(b)
	if err != nil {
		d.Chk.True(datas.ErrMergeNeeded == err)
		fmt.Fprintf(os.Stderr, "Could not commit, optimistic concurrency failed.")
		return
	}

	status.Done()
	fmt.Println("Done")
}
コード例 #20
0
ファイル: importer.go プロジェクト: willhite/noms-old
func main() {
	var (
		// 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.")
		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")
		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")
		destTypePattern = regexp.MustCompile("^(list|map):(\\d+)$")
	)

	spec.RegisterDatabaseFlags()
	cpuCount := runtime.NumCPU()
	runtime.GOMAXPROCS(cpuCount)

	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "Usage: csv-import [options] <dataset> <csvfile>\n\n")
		flag.PrintDefaults()
	}

	flag.Parse()

	if flag.NArg() != 2 {
		err := fmt.Errorf("Expected exactly two parameters (dataset and path) after flags, but you have %d. Maybe you put a flag after the path?", flag.NArg())
		util.CheckError(err)
	}

	path := flag.Arg(1)

	defer profile.MaybeStartProfile().Stop()

	res, err := os.Open(path)
	d.Exp.NoError(err)
	defer res.Close()

	comma, err := csv.StringToRune(*delimiter)
	if err != nil {
		util.CheckError(err)
		return
	}

	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.Chk.NoError(err)
	} else {
		fmt.Println("Invalid dest-type: ", *destType)
		return
	}

	fi, err := res.Stat()
	d.Chk.NoError(err)

	var r io.Reader = res
	if !*noProgress {
		r = progressreader.New(r, getStatusPrinter(uint64(fi.Size())))
	}
	cr := csv.NewCSVReader(r, comma)

	var headers []string
	if *header == "" {
		headers, err = cr.Read()
		d.Exp.NoError(err)
	} else {
		headers = strings.Split(*header, string(comma))
	}

	ds, err := spec.GetDataset(flag.Arg(0))
	util.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())
	}
	_, err = ds.Commit(value)
	if !*noProgress {
		status.Clear()
	}
	d.Exp.NoError(err)
}
コード例 #21
0
ファイル: fetch.go プロジェクト: kalman/noms-pre-release
func main() {
	comment := flag.String("comment", "", "comment to add to commit's meta data")
	spec.RegisterDatabaseFlags(flag.CommandLine)

	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "Fetches a URL (or file) into a noms blob\n\nUsage: %s <url-or-local-path> <dataset>:\n", os.Args[0])
		flag.PrintDefaults()
	}
	flag.Parse(true)

	if flag.NArg() != 2 {
		d.CheckErrorNoUsage(errors.New("expected dataset and url arguments"))
	}

	ds, err := spec.GetDataset(flag.Arg(1))
	d.CheckErrorNoUsage(err)
	defer ds.Database().Close()

	url := flag.Arg(0)
	fileOrUrl := "file"
	start = time.Now()

	var pr io.Reader

	if strings.HasPrefix(url, "http") {
		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Could not fetch url %s, error: %s\n", url, err)
			return
		}

		switch resp.StatusCode / 100 {
		case 4, 5:
			fmt.Fprintf(os.Stderr, "Could not fetch url %s, error: %d (%s)\n", url, resp.StatusCode, resp.Status)
			return
		}

		pr = progressreader.New(resp.Body, getStatusPrinter(resp.ContentLength))
		fileOrUrl = "url"
	} else {
		// assume it's a file
		f, err := os.Open(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Invalid URL %s - does not start with 'http' and isn't local file either. fopen error: %s", url, err)
			return
		}

		s, err := f.Stat()
		if err != nil {
			fmt.Fprintf(os.Stderr, "Could not stat file %s: %s", url, err)
			return
		}

		pr = progressreader.New(f, getStatusPrinter(s.Size()))
		fileOrUrl = "file"
	}

	b := types.NewStreamingBlob(pr, ds.Database())
	mi := metaInfoForCommit(fileOrUrl, url, *comment)
	ds, err = ds.Commit(b, dataset.CommitOptions{Meta: mi})
	if err != nil {
		d.Chk.Equal(datas.ErrMergeNeeded, err)
		fmt.Fprintf(os.Stderr, "Could not commit, optimistic concurrency failed.")
		return
	}

	status.Done()
	fmt.Println("Done")
}