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services: add new service for fetching blocks from NeoFS
Close #3496 Co-authored-by: Anna Shaleva <[email protected]> Signed-off-by: Ekaterina Pavlova <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/nspcc-dev/neo-go/cli/cmdargs" | ||
| "github.com/nspcc-dev/neo-go/cli/options" | ||
| "github.com/nspcc-dev/neo-go/pkg/core/block" | ||
| "github.com/nspcc-dev/neo-go/pkg/io" | ||
| "github.com/urfave/cli/v2" | ||
| ) | ||
|
|
||
| func dumpBin(ctx *cli.Context) error { | ||
| if err := cmdargs.EnsureNone(ctx); err != nil { | ||
| return err | ||
| } | ||
| cfg, err := options.GetConfigFromContext(ctx) | ||
| if err != nil { | ||
| return cli.Exit(err, 1) | ||
| } | ||
| log, _, logCloser, err := options.HandleLoggingParams(ctx.Bool("debug"), cfg.ApplicationConfiguration) | ||
| if err != nil { | ||
| return cli.Exit(err, 1) | ||
| } | ||
| if logCloser != nil { | ||
| defer func() { _ = logCloser() }() | ||
| } | ||
| count := uint32(ctx.Uint("count")) | ||
| start := uint32(ctx.Uint("start")) | ||
|
|
||
| chain, prometheus, pprof, err := initBCWithMetrics(cfg, log) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer func() { | ||
| pprof.ShutDown() | ||
| prometheus.ShutDown() | ||
| chain.Close() | ||
| }() | ||
|
|
||
| blocksCount := chain.BlockHeight() + 1 | ||
| if start+count > blocksCount { | ||
| return cli.Exit(fmt.Errorf("chain is not that high (%d) to dump %d blocks starting from %d", blocksCount-1, count, start), 1) | ||
| } | ||
| if count == 0 { | ||
| count = blocksCount - start | ||
| } | ||
|
|
||
| out := ctx.String("out") | ||
| if out == "" { | ||
| return cli.Exit("output directory is not specified", 1) | ||
| } | ||
| if _, err = os.Stat(out); os.IsNotExist(err) { | ||
| if err = os.MkdirAll(out, os.ModePerm); err != nil { | ||
| return cli.Exit(fmt.Sprintf("failed to create directory %s: %s", out, err), 1) | ||
| } | ||
| } | ||
| if err != nil { | ||
| return cli.Exit(fmt.Sprintf("failed to check directory %s: %s", out, err), 1) | ||
| } | ||
|
|
||
| for i := start; i < start+count; i++ { | ||
| bh := chain.GetHeaderHash(i) | ||
| blk, err := chain.GetBlock(bh) | ||
| if err != nil { | ||
| return cli.Exit(fmt.Sprintf("failed to get block %d: %s", i, err), 1) | ||
| } | ||
| filePath := filepath.Join(out, fmt.Sprintf("block-%d.bin", i)) | ||
| if err = saveBlockToFile(blk, filePath); err != nil { | ||
| return cli.Exit(fmt.Sprintf("failed to save block %d to file %s: %s", i, filePath, err), 1) | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func saveBlockToFile(blk *block.Block, filePath string) error { | ||
| file, err := os.Create(filePath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer file.Close() | ||
|
|
||
| writer := io.NewBinWriterFromIO(file) | ||
| blk.EncodeBinary(writer) | ||
| if writer.Err != nil { | ||
| return writer.Err | ||
| } | ||
| return nil | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| package server_test | ||
|
|
||
| import ( | ||
| "os" | ||
| "path/filepath" | ||
| "strconv" | ||
| "testing" | ||
|
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||
| "github.com/nspcc-dev/neo-go/internal/testcli" | ||
| "github.com/nspcc-dev/neo-go/pkg/config" | ||
| "github.com/nspcc-dev/neo-go/pkg/core/storage/dbconfig" | ||
| "github.com/stretchr/testify/require" | ||
| "gopkg.in/yaml.v3" | ||
| ) | ||
|
|
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| func TestDumpBin(t *testing.T) { | ||
| tmpDir := t.TempDir() | ||
|
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||
| loadConfig := func(t *testing.T) config.Config { | ||
| chainPath := filepath.Join(tmpDir, "neogotestchain") | ||
| cfg, err := config.LoadFile(filepath.Join("..", "..", "config", "protocol.unit_testnet.yml")) | ||
| require.NoError(t, err, "could not load config") | ||
| cfg.ApplicationConfiguration.DBConfiguration.Type = dbconfig.LevelDB | ||
| cfg.ApplicationConfiguration.DBConfiguration.LevelDBOptions.DataDirectoryPath = chainPath | ||
| return cfg | ||
| } | ||
|
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| cfg := loadConfig(t) | ||
| out, err := yaml.Marshal(cfg) | ||
| require.NoError(t, err) | ||
|
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| cfgPath := filepath.Join(tmpDir, "protocol.unit_testnet.yml") | ||
| require.NoError(t, os.WriteFile(cfgPath, out, os.ModePerm)) | ||
|
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| e := testcli.NewExecutor(t, false) | ||
|
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| restoreArgs := []string{"neo-go", "db", "restore", | ||
| "--config-file", cfgPath, "--in", inDump} | ||
| e.Run(t, restoreArgs...) | ||
|
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| t.Run("missing output directory", func(t *testing.T) { | ||
| args := []string{"neo-go", "db", "dump-bin", | ||
| "--config-file", cfgPath, "--out", ""} | ||
| e.RunWithErrorCheck(t, "output directory is not specified", args...) | ||
| }) | ||
|
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||
| t.Run("successful dump", func(t *testing.T) { | ||
| outDir := filepath.Join(tmpDir, "blocks") | ||
| args := []string{"neo-go", "db", "dump-bin", | ||
| "--config-file", cfgPath, "--out", outDir, "--count", "5", "--start", "0"} | ||
|
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| e.Run(t, args...) | ||
|
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| require.DirExists(t, outDir) | ||
|
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| for i := 0; i < 5; i++ { | ||
| blockFile := filepath.Join(outDir, "block-"+strconv.Itoa(i)+".bin") | ||
| require.FileExists(t, blockFile) | ||
| } | ||
| }) | ||
|
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| t.Run("invalid block range", func(t *testing.T) { | ||
| outDir := filepath.Join(tmpDir, "invalid-blocks") | ||
| args := []string{"neo-go", "db", "dump-bin", | ||
| "--config-file", cfgPath, "--out", outDir, "--count", "1000", "--start", "0"} | ||
|
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| e.RunWithError(t, args...) | ||
| }) | ||
|
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| t.Run("output directory with no write permission", func(t *testing.T) { | ||
| outDir := filepath.Join(tmpDir, "no-write-permission") | ||
| require.NoError(t, os.Mkdir(outDir, 0400)) | ||
|
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| args := []string{"neo-go", "db", "dump-bin", | ||
| "--config-file", cfgPath, "--out", outDir, "--count", "5", "--start", "0"} | ||
|
|
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| e.RunWithError(t, args...) | ||
| }) | ||
|
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| t.Run("zero blocks (full chain dump)", func(t *testing.T) { | ||
| outDir := filepath.Join(tmpDir, "full-dump") | ||
| args := []string{"neo-go", "db", "dump-bin", | ||
| "--config-file", cfgPath, "--out", outDir} | ||
|
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| e.Run(t, args...) | ||
|
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| require.DirExists(t, outDir) | ||
| for i := 0; i < 50; i++ { | ||
| blockFile := filepath.Join(outDir, "block-"+strconv.Itoa(i)+".bin") | ||
| require.FileExists(t, blockFile) | ||
| } | ||
| }) | ||
|
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| t.Run("invalid config file", func(t *testing.T) { | ||
| outDir := filepath.Join(tmpDir, "blocks") | ||
| args := []string{"neo-go", "db", "dump-bin", | ||
| "--config-file", "invalid-config-path", "--out", outDir} | ||
|
|
||
| e.RunWithError(t, args...) | ||
| }) | ||
| } |
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