Æsh is a Java library to easily create commands through a well defined API. Æsh will take care of all the parsing and injection for your commands. Æsh uses the project 'aesh-readline' for it’s terminal/readline integration.
We’re now heading into the final stages before we’ll tag an 1.0-alpha release. The master branch is fairly stable atm and the plan is to not change anything big in the upcoming weeks. We have released a snapshot version of 1.0 if you are eager to test. Just add this to your 'pom.xml':
<dependency>
<groupId>org.aesh</groupId>
<artifactId>aesh</artifactId>
<version>1.7</version>
</dependency>'build.gradle' file.
dependencies {
compile group: 'org.aesh', name: 'aesh', version: '1.0-SNAPSHOT'
}Æsh is a library to easily create commands. We recommend using annotations as the default way of adding metadata for your commands, but we also have a builder API if that is preferred. Some of our features:
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Easy to use API to create everything from simple to advanced commands
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Supports different types of options (list, group, single) and arguments
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Builtin completors for default values, booleans and files
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Supports multiple hierarcy of sub commands eg: git rebase/pull/++
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All option values and arguments are automatically injected during execution
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Possible to add custom validators, activators, completors, converters, renderers and parsers
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Automatically generates help/info text based on the metadata provided
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Can add and remove commands during runtime
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All the readline functionality included in 'aesh-readline', eg:
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Line editing
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History (search, persistence)
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Completion
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Masking
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Undo and Redo
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Paste buffer
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Emacs and Vi editing mode
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Supports POSIX OS’s and Windows
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Easy to configure (history file & buffer size, edit mode, streams, possible to override terminal implementations, etc)
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Support standard out and standard error
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Redirect
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Alias
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Pipeline
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Æsh uses Maven (http://maven.apache.org) as its build tool.
import org.aesh.command.Command;
import org.aesh.command.CommandDefinition;
import org.aesh.command.CommandException;
import org.aesh.command.CommandResult;
import org.aesh.command.impl.registry.AeshCommandRegistryBuilder;
import org.aesh.command.invocation.CommandInvocation;
import org.aesh.command.parser.CommandLineParserException;
import org.aesh.command.registry.CommandRegistry;
import org.aesh.console.settings.Settings;
import org.aesh.console.settings.SettingsBuilder;
import org.aesh.readline.ReadlineConsole;
import java.io.IOException;
public class SimpleExample {
public static void main(String[] args) throws CommandLineParserException, IOException {
CommandRegistry registry = new AeshCommandRegistryBuilder()
.command(ExitCommand.class)
.create();
Settings settings = SettingsBuilder
.builder()
.commandRegistry(registry)
.build();
ReadlineConsole console = new ReadlineConsole(settings);
console.setPrompt("[simple@aesh]$ ");
console.start();
}
@CommandDefinition(name = "exit", description = "exit the program", aliases = {"quit"})
public static class ExitCommand implements Command {
@Override
public CommandResult execute(CommandInvocation commandInvocation) throws CommandException, InterruptedException {
commandInvocation.stop();
return CommandResult.SUCCESS;
}
}
}
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