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/*
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.pgm.opt;
import org.eclipse.jgit.pgm.CommandCatalog;
import org.eclipse.jgit.pgm.CommandRef;
import org.eclipse.jgit.pgm.TextBuiltin;
import org.eclipse.jgit.pgm.internal.CLIText;
import org.kohsuke.args4j.CmdLineException;
import org.kohsuke.args4j.CmdLineParser;
import org.kohsuke.args4j.OptionDef;
import org.kohsuke.args4j.spi.OptionHandler;
import org.kohsuke.args4j.spi.Parameters;
import org.kohsuke.args4j.spi.Setter;
/**
* Custom Argument handler for jgit command selection.
* <p>
* Translates a single argument string to a
* {@link org.eclipse.jgit.pgm.TextBuiltin} instance which we can execute at
* runtime with the remaining arguments of the parser.
*/
public class SubcommandHandler extends OptionHandler<TextBuiltin> {
private final org.eclipse.jgit.pgm.opt.CmdLineParser clp;
/**
* Create a new handler for the command name.
* <p>
* This constructor is used only by args4j.
*
* @param parser
* a {@link org.kohsuke.args4j.CmdLineParser} object.
* @param option
* a {@link org.kohsuke.args4j.OptionDef} object.
* @param setter
* a {@link org.kohsuke.args4j.spi.Setter} object.
*/
public SubcommandHandler(final CmdLineParser parser,
final OptionDef option, final Setter<? super TextBuiltin> setter) {
super(parser, option, setter);
clp = (org.eclipse.jgit.pgm.opt.CmdLineParser) parser;
}
/** {@inheritDoc} */
@Override
public int parseArguments(Parameters params) throws CmdLineException {
final String name = params.getParameter(0);
final CommandRef cr = CommandCatalog.get(name);
if (cr == null)
throw new CmdLineException(clp,
CLIText.format(CLIText.get().notAJgitCommand), name);
// Force option parsing to stop. Everything after us should
// be arguments known only to this command and must not be
// recognized by the current parser.
//
owner.stopOptionParsing();
setter.addValue(cr.create());
return 1;
}
/** {@inheritDoc} */
@Override
public String getDefaultMetaVariable() {
return CLIText.get().metaVar_command;
}
}
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