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package main
import (
"context"
"database/sql"
"errors"
"flag"
"fmt"
"os"
"os/signal"
"time"
"github.com/sirupsen/logrus"
gitalyauth "gitlab.com/gitlab-org/gitaly/v16/auth"
"gitlab.com/gitlab-org/gitaly/v16/client"
internalclient "gitlab.com/gitlab-org/gitaly/v16/internal/gitaly/client"
"gitlab.com/gitlab-org/gitaly/v16/internal/praefect/config"
"gitlab.com/gitlab-org/gitaly/v16/internal/praefect/datastore/glsql"
"gitlab.com/gitlab-org/gitaly/v16/internal/praefect/service"
"google.golang.org/grpc"
)
type subcmd interface {
FlagSet() *flag.FlagSet
Exec(flags *flag.FlagSet, config config.Config) error
}
const (
defaultDialTimeout = 10 * time.Second
paramVirtualStorage = "virtual-storage"
paramRelativePath = "repository"
paramAuthoritativeStorage = "authoritative-storage"
)
func subcommands(logger *logrus.Entry) map[string]subcmd {
return map[string]subcmd{
sqlPingCmdName: &sqlPingSubcommand{},
sqlMigrateCmdName: newSQLMigrateSubCommand(os.Stdout),
dialNodesCmdName: newDialNodesSubcommand(os.Stdout),
sqlMigrateDownCmdName: &sqlMigrateDownSubcommand{},
sqlMigrateStatusCmdName: &sqlMigrateStatusSubcommand{},
datalossCmdName: newDatalossSubcommand(),
acceptDatalossCmdName: &acceptDatalossSubcommand{},
setReplicationFactorCmdName: newSetReplicatioFactorSubcommand(os.Stdout),
removeRepositoryCmdName: newRemoveRepository(logger, os.Stdout),
trackRepositoryCmdName: newTrackRepository(logger, os.Stdout),
trackRepositoriesCmdName: newTrackRepositories(logger, os.Stdout),
listUntrackedRepositoriesName: newListUntrackedRepositories(logger, os.Stdout),
checkCmdName: newCheckSubcommand(os.Stdout, service.AllChecks()...),
metadataCmdName: newMetadataSubcommand(os.Stdout),
verifyCmdName: newVerifySubcommand(os.Stdout),
listStoragesCmdName: newListStorages(os.Stdout),
}
}
// subCommand returns an exit code, to be fed into os.Exit.
func subCommand(conf config.Config, logger *logrus.Entry, arg0 string, argRest []string) int {
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt)
go func() {
<-interrupt
os.Exit(130) // indicates program was interrupted
}()
subcmd, ok := subcommands(logger)[arg0]
if !ok {
printfErr("%s: unknown subcommand: %q\n", progname, arg0)
return 1
}
flags := subcmd.FlagSet()
if err := flags.Parse(argRest); err != nil {
printfErr("%s\n", err)
return 1
}
if err := subcmd.Exec(flags, conf); err != nil {
printfErr("%s\n", err)
return 1
}
return 0
}
func getNodeAddress(cfg config.Config) (string, error) {
switch {
case cfg.SocketPath != "":
return "unix:" + cfg.SocketPath, nil
case cfg.ListenAddr != "":
return "tcp://" + cfg.ListenAddr, nil
case cfg.TLSListenAddr != "":
return "tls://" + cfg.TLSListenAddr, nil
default:
return "", errors.New("no Praefect address configured")
}
}
func openDB(conf config.DB) (*sql.DB, func(), error) {
ctx := context.Background()
openDBCtx, cancel := context.WithTimeout(ctx, 30*time.Second)
defer cancel()
db, err := glsql.OpenDB(openDBCtx, conf)
if err != nil {
return nil, nil, fmt.Errorf("sql open: %v", err)
}
clean := func() {
if err := db.Close(); err != nil {
printfErr("sql close: %v\n", err)
}
}
return db, clean, nil
}
func printfErr(format string, a ...interface{}) {
fmt.Fprintf(os.Stderr, format, a...)
}
func subCmdDial(ctx context.Context, addr, token string, timeout time.Duration, opts ...grpc.DialOption) (*grpc.ClientConn, error) {
ctx, cancel := context.WithTimeout(ctx, timeout)
defer cancel()
opts = append(opts,
grpc.WithBlock(),
internalclient.UnaryInterceptor(),
internalclient.StreamInterceptor(),
)
if len(token) > 0 {
opts = append(opts,
grpc.WithPerRPCCredentials(
gitalyauth.RPCCredentialsV2(token),
),
)
}
return client.DialContext(ctx, addr, opts)
}
type requiredParameterError string
func (p requiredParameterError) Error() string {
return fmt.Sprintf("%q is a required parameter", string(p))
}
type unexpectedPositionalArgsError struct{ Command string }
func (err unexpectedPositionalArgsError) Error() string {
return fmt.Sprintf("%s doesn't accept positional arguments", err.Command)
}
|
