260 lines
6.7 KiB
Go
260 lines
6.7 KiB
Go
package main
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import (
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"context"
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"database/sql"
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"errors"
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"fmt"
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"io"
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"os"
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"path"
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"strings"
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"github.com/BurntSushi/toml"
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"github.com/urfave/cli/v2"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/lotus/lib/harmony/harmonydb"
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"github.com/filecoin-project/lotus/node/config"
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)
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var configCmd = &cli.Command{
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Name: "config",
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Usage: "Manage node config by layers. The layer 'base' will always be applied. ",
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Subcommands: []*cli.Command{
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configDefaultCmd,
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configSetCmd,
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configGetCmd,
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configListCmd,
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configViewCmd,
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configRmCmd,
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configMigrateCmd,
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},
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}
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var configDefaultCmd = &cli.Command{
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Name: "default",
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Aliases: []string{"defaults"},
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Usage: "Print default node config",
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Flags: []cli.Flag{
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&cli.BoolFlag{
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Name: "no-comment",
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Usage: "don't comment default values",
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},
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},
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Action: func(cctx *cli.Context) error {
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comment := !cctx.Bool("no-comment")
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cfg, err := getDefaultConfig(comment)
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if err != nil {
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return err
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}
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fmt.Print(cfg)
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return nil
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},
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}
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func getDefaultConfig(comment bool) (string, error) {
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c := config.DefaultLotusProvider()
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cb, err := config.ConfigUpdate(c, nil, config.Commented(comment), config.DefaultKeepUncommented(), config.NoEnv())
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if err != nil {
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return "", err
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}
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return string(cb), nil
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}
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var configSetCmd = &cli.Command{
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Name: "set",
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Aliases: []string{"add"},
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Usage: "Set a config layer or the base by providing a filename or stdin.",
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ArgsUsage: "a layer's file name",
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "title",
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Usage: "title of the config layer (req'd for stdin)",
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},
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},
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Action: func(cctx *cli.Context) error {
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args := cctx.Args()
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db, err := makeDB(cctx)
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if err != nil {
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return err
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}
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name := cctx.String("title")
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var stream io.Reader = os.Stdin
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if args.Len() != 1 {
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if cctx.String("title") == "" {
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return errors.New("must have a title for stdin, or a file name")
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}
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} else {
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stream, err = os.Open(args.First())
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if err != nil {
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return fmt.Errorf("cannot open file %s: %w", args.First(), err)
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}
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if name == "" {
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name = strings.Split(path.Base(args.First()), ".")[0]
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}
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}
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bytes, err := io.ReadAll(stream)
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if err != nil {
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return fmt.Errorf("cannot read stream/file %w", err)
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}
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lp := config.DefaultLotusProvider() // ensure it's toml
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_, err = toml.Decode(string(bytes), lp)
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if err != nil {
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return fmt.Errorf("cannot decode file: %w", err)
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}
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_ = lp
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_, err = db.Exec(context.Background(),
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`INSERT INTO harmony_config (title, config) VALUES ($1, $2)
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ON CONFLICT (title) DO UPDATE SET config = excluded.config`, name, string(bytes))
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if err != nil {
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return fmt.Errorf("unable to save config layer: %w", err)
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}
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fmt.Println("Layer " + name + " created/updated")
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return nil
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},
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}
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var configGetCmd = &cli.Command{
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Name: "get",
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Aliases: []string{"cat", "show"},
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Usage: "Get a config layer by name. You may want to pipe the output to a file, or use 'less'",
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ArgsUsage: "layer name",
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Action: func(cctx *cli.Context) error {
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args := cctx.Args()
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if args.Len() != 1 {
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return fmt.Errorf("want 1 layer arg, got %d", args.Len())
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}
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db, err := makeDB(cctx)
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if err != nil {
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return err
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}
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var cfg string
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err = db.QueryRow(context.Background(), `SELECT config FROM harmony_config WHERE title=$1`, args.First()).Scan(&cfg)
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if err != nil {
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return err
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}
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fmt.Println(cfg)
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return nil
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},
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}
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var configListCmd = &cli.Command{
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Name: "list",
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Aliases: []string{"ls"},
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Usage: "List config layers you can get.",
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Flags: []cli.Flag{},
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Action: func(cctx *cli.Context) error {
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db, err := makeDB(cctx)
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if err != nil {
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return err
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}
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var res []string
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err = db.Select(context.Background(), &res, `SELECT title FROM harmony_config ORDER BY title`)
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if err != nil {
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return fmt.Errorf("unable to read from db: %w", err)
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}
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for _, r := range res {
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fmt.Println(r)
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}
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return nil
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},
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}
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var configRmCmd = &cli.Command{
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Name: "remove",
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Aliases: []string{"rm", "del", "delete"},
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Usage: "Remove a named config layer.",
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Flags: []cli.Flag{},
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Action: func(cctx *cli.Context) error {
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args := cctx.Args()
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if args.Len() != 1 {
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return errors.New("must have exactly 1 arg for the layer name")
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}
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db, err := makeDB(cctx)
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if err != nil {
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return err
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}
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ct, err := db.Exec(context.Background(), `DELETE FROM harmony_config WHERE title=$1`, args.First())
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if err != nil {
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return fmt.Errorf("unable to read from db: %w", err)
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}
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if ct == 0 {
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return fmt.Errorf("no layer named %s", args.First())
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}
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return nil
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},
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}
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var configViewCmd = &cli.Command{
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Name: "interpret",
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Aliases: []string{"view", "stacked", "stack"},
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Usage: "Interpret stacked config layers by this version of lotus-provider, with system-generated comments.",
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ArgsUsage: "a list of layers to be interpreted as the final config",
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Flags: []cli.Flag{
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&cli.StringSliceFlag{
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Name: "layers",
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Usage: "comma or space separated list of layers to be interpreted",
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Value: cli.NewStringSlice("base"),
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Required: true,
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},
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},
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Action: func(cctx *cli.Context) error {
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db, err := makeDB(cctx)
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if err != nil {
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return err
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}
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lp, err := getConfig(cctx, db)
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if err != nil {
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return err
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}
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cb, err := config.ConfigUpdate(lp, config.DefaultLotusProvider(), config.Commented(true), config.DefaultKeepUncommented(), config.NoEnv())
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if err != nil {
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return xerrors.Errorf("cannot interpret config: %w", err)
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}
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fmt.Println(string(cb))
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return nil
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},
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}
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func getConfig(cctx *cli.Context, db *harmonydb.DB) (*config.LotusProviderConfig, error) {
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lp := config.DefaultLotusProvider()
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have := []string{}
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layers := cctx.StringSlice("layers")
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for _, layer := range layers {
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text := ""
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err := db.QueryRow(cctx.Context, `SELECT config FROM harmony_config WHERE title=$1`, layer).Scan(&text)
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if err != nil {
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if strings.Contains(err.Error(), sql.ErrNoRows.Error()) {
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return nil, fmt.Errorf("missing layer '%s' ", layer)
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}
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if layer == "base" {
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return nil, errors.New(`lotus-provider defaults to a layer named 'base'.
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Either use 'migrate' command or edit a base.toml and upload it with: lotus-provider config set base.toml`)
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}
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return nil, fmt.Errorf("could not read layer '%s': %w", layer, err)
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}
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meta, err := toml.Decode(text, &lp)
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if err != nil {
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return nil, fmt.Errorf("could not read layer, bad toml %s: %w", layer, err)
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}
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for _, k := range meta.Keys() {
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have = append(have, strings.Join(k, " "))
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}
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}
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_ = have // FUTURE: verify that required fields are here.
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// If config includes 3rd-party config, consider JSONSchema as a way that
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// 3rd-parties can dynamically include config requirements and we can
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// validate the config. Because of layering, we must validate @ startup.
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return lp, nil
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}
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