@lodestar/flare/lib/cli.js

Beacon chain debugging tool

import { registerCommandToYargs } from "@lodestar/utils";
// Must not use `* as yargs`, see https://github.com/yargs/yargs/issues/1131
import yargs from "yargs";
import { hideBin } from "yargs/helpers";
import { cmds } from "./cmds/index.js";
const topBanner = `Beacon chain multi-purpose and debugging tool.

Flare is a sudden brief burst of bright flame or light.
In the wrong hands, can lead people astray.
Use with care.

  * by ChainSafe Systems, 2018-${new Date().getFullYear()}`;
const bottomBanner = `
✍️ Give feedback and report issues on GitHub:
  * https://github.com/ChainSafe/lodestar`;
export const yarg = yargs(hideBin(process.argv));
/**
 * Common factory for running the CLI and running integration tests
 * The CLI must actually be executed in a different script
 */
export function getCli() {
    const lodestar = yarg
        .env("FLARE")
        .parserConfiguration({
        // As of yargs v16.1.0 dot-notation breaks strictOptions()
        // Manually processing options is typesafe tho more verbose
        "dot-notation": false,
    })
        // blank scriptName so that help text doesn't display the cli name before each command
        .scriptName("")
        .demandCommand(1)
        // Control show help behaviour below on .fail()
        .showHelpOnFail(false)
        .usage(topBanner)
        .epilogue(bottomBanner)
        .version(topBanner)
        .alias("h", "help")
        .alias("v", "version")
        .recommendCommands();
    // yargs.command and all ./cmds
    for (const cmd of cmds) {
        registerCommandToYargs(lodestar, cmd);
    }
    // throw an error if we see an unrecognized cmd
    lodestar.recommendCommands().strict();
    return lodestar;
}
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