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package supervisor
import (
"context"
"fmt"
"github.com/ethereum-optimism/optimism/op-supervisor/config"
"github.com/urfave/cli/v2"
"github.com/ethereum/go-ethereum/log"
opservice "github.com/ethereum-optimism/optimism/op-service"
"github.com/ethereum-optimism/optimism/op-service/cliapp"
oplog "github.com/ethereum-optimism/optimism/op-service/log"
"github.com/ethereum-optimism/optimism/op-supervisor/flags"
)
type MainFn func(ctx context.Context, cfg *config.Config, logger log.Logger) (cliapp.Lifecycle, error)
// Main is the entrypoint into the Supervisor.
// This method returns a cliapp.LifecycleAction, to create an op-service CLI-lifecycle-managed supervisor with.
func Main(version string, fn MainFn) cliapp.LifecycleAction {
return func(cliCtx *cli.Context, closeApp context.CancelCauseFunc) (cliapp.Lifecycle, error) {
if err := flags.CheckRequired(cliCtx); err != nil {
return nil, err
}
cfg := flags.ConfigFromCLI(cliCtx, version)
if err := cfg.Check(); err != nil {
return nil, fmt.Errorf("invalid CLI flags: %w", err)
}
l := oplog.NewLogger(oplog.AppOut(cliCtx), cfg.LogConfig)
oplog.SetGlobalLogHandler(l.Handler())
opservice.ValidateEnvVars(flags.EnvVarPrefix, flags.Flags, l)
l.Info("Initializing Supervisor")
return fn(cliCtx.Context, cfg, l)
}
}