Cli.java

package org.utplsql.cli;

import picocli.CommandLine;

import java.util.List;

public class Cli {

    static final int DEFAULT_ERROR_CODE = 1;

    public static void main(String[] args) {

        int exitCode = runPicocliWithExitCode(args);

        System.exit(exitCode);
    }

    static int runPicocliWithExitCode(String[] args) {

        CommandLine commandLine = new CommandLine(UtplsqlPicocliCommand.class);
        commandLine.setTrimQuotes(true);

        int exitCode = DEFAULT_ERROR_CODE;

        try {

            List<CommandLine> parsedLines = commandLine.parse(args);

            boolean commandWasRun = false;
            for (CommandLine parsedLine : parsedLines) {
                if (parsedLine.isUsageHelpRequested()) {
                    parsedLine.usage(System.out);
                    return 0;
                } else if (parsedLine.isVersionHelpRequested()) {
                    parsedLine.printVersionHelp(System.out);
                    return 0;
                }

                Object command = parsedLine.getCommand();
                if (command instanceof ICommand) {
                    exitCode = ((ICommand) command).run();
                    commandWasRun = true;
                    break;
                }
            }

            if (!commandWasRun) {
                commandLine.usage(System.out);
            }
        } catch (CommandLine.ParameterException e) {
            System.err.println(e.getMessage());
            if (!CommandLine.UnmatchedArgumentException.printSuggestions(e, System.err)) {
                e.getCommandLine().usage(System.err);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return exitCode;
    }

}