tikhomirov@378: /*
tikhomirov@378:  * Copyright (c) 2012 TMate Software Ltd
tikhomirov@378:  *  
tikhomirov@378:  * This program is free software; you can redistribute it and/or modify
tikhomirov@378:  * it under the terms of the GNU General Public License as published by
tikhomirov@378:  * the Free Software Foundation; version 2 of the License.
tikhomirov@378:  *
tikhomirov@378:  * This program is distributed in the hope that it will be useful,
tikhomirov@378:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
tikhomirov@378:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tikhomirov@378:  * GNU General Public License for more details.
tikhomirov@378:  *
tikhomirov@378:  * For information on how to redistribute this software under
tikhomirov@378:  * the terms of a license other than GNU General Public License
tikhomirov@378:  * contact TMate Software at support@hg4j.com
tikhomirov@378:  */
tikhomirov@378: package org.tmatesoft.hg.core;
tikhomirov@378: 
tikhomirov@378: import java.io.File;
tikhomirov@378: import java.io.IOException;
tikhomirov@378: import java.util.ArrayList;
tikhomirov@378: import java.util.LinkedHashMap;
tikhomirov@378: import java.util.List;
tikhomirov@378: import java.util.Map;
tikhomirov@378: 
tikhomirov@378: import org.tmatesoft.hg.internal.ConfigFile;
tikhomirov@378: import org.tmatesoft.hg.internal.Experimental;
tikhomirov@378: import org.tmatesoft.hg.internal.Internals;
tikhomirov@382: import org.tmatesoft.hg.repo.HgInternals;
tikhomirov@378: import org.tmatesoft.hg.repo.HgRepository;
tikhomirov@378: 
tikhomirov@378: /**
tikhomirov@378:  * WORK IN PROGRESS, DO NOT USE
tikhomirov@378:  *
tikhomirov@378:  * @author Artem Tikhomirov
tikhomirov@378:  * @author TMate Software Ltd.
tikhomirov@378:  */
tikhomirov@378: @Experimental(reason="Investigating approaches to alter Hg configuration files")
tikhomirov@378: public final class HgUpdateConfigCommand extends HgAbstractCommand<HgUpdateConfigCommand> {
tikhomirov@378: 	
tikhomirov@378: 	private final File configFile;
tikhomirov@378: 	
tikhomirov@378: 	private Map<String,List<String>> toRemove;
tikhomirov@378: 	private Map<String,Map<String,String>> toSet;
tikhomirov@378: 
tikhomirov@382: 	private HgUpdateConfigCommand(File configurationFile) {
tikhomirov@378: 		configFile = configurationFile;
tikhomirov@378: 	}
tikhomirov@378: 	
tikhomirov@378: 	public static HgUpdateConfigCommand forRepository(HgRepository hgRepo) {
tikhomirov@382: 		// XXX HgRepository to implement SessionContextProvider (with getContext())?
tikhomirov@382: 		return new HgUpdateConfigCommand(new File(HgInternals.getRepositoryDir(hgRepo), "hgrc"));
tikhomirov@378: 	}
tikhomirov@378: 	
tikhomirov@382: 	public static HgUpdateConfigCommand forUser(SessionContext ctx) {
tikhomirov@382: 		return new HgUpdateConfigCommand(Internals.getUserConfigurationFileToWrite(ctx));
tikhomirov@378: 	}
tikhomirov@378: 	
tikhomirov@382: 	public static HgUpdateConfigCommand forInstallation(SessionContext ctx) {
tikhomirov@382: 		return new HgUpdateConfigCommand(Internals.getInstallationConfigurationFileToWrite(ctx));
tikhomirov@378: 	}
tikhomirov@378: 	
tikhomirov@378: 	/**
tikhomirov@378: 	 * Remove a property altogether
tikhomirov@378: 	 * @return <code>this</code> for convenience
tikhomirov@378: 	 */
tikhomirov@378: 	public HgUpdateConfigCommand remove(String section, String key) {
tikhomirov@378: 		if (toRemove == null) {
tikhomirov@378: 			toRemove = new LinkedHashMap<String, List<String>>();
tikhomirov@378: 		}
tikhomirov@378: 		List<String> s = toRemove.get(section);
tikhomirov@378: 		if (s == null) {
tikhomirov@378: 			toRemove.put(section, s = new ArrayList<String>(5));
tikhomirov@378: 		}
tikhomirov@378: 		s.add(key);
tikhomirov@378: 		if (toSet != null && toSet.containsKey(section)) {
tikhomirov@378: 			toSet.get(section).remove(key);
tikhomirov@378: 		}
tikhomirov@378: 		return this;
tikhomirov@378: 	}
tikhomirov@378: 
tikhomirov@378: 	/**
tikhomirov@378: 	 * Delete single attribute in a multi-valued property
tikhomirov@378: 	 * @return <code>this</code> for convenience
tikhomirov@378: 	 */
tikhomirov@378: 	public HgUpdateConfigCommand remove(String section, String key, String value) {
tikhomirov@378: 		throw new UnsupportedOperationException();
tikhomirov@378: 	}
tikhomirov@378: 	
tikhomirov@378: 	/**
tikhomirov@378: 	 * Set single-valued properties or update multi-valued with a single value
tikhomirov@378: 	 * @return <code>this</code> for convenience
tikhomirov@378: 	 */
tikhomirov@378: 	public HgUpdateConfigCommand put(String section, String key, String value) {
tikhomirov@378: 		if (toSet == null) {
tikhomirov@378: 			toSet =  new LinkedHashMap<String, Map<String,String>>();
tikhomirov@378: 		}
tikhomirov@378: 		Map<String,String> s = toSet.get(section);
tikhomirov@378: 		if (s == null) {
tikhomirov@378: 			toSet.put(section, s = new LinkedHashMap<String, String>());
tikhomirov@378: 		}
tikhomirov@378: 		s.put(key, value);
tikhomirov@378: 		return this;
tikhomirov@378: 	}
tikhomirov@378: 	
tikhomirov@378: 	/**
tikhomirov@378: 	 * Multi-valued properties
tikhomirov@378: 	 * @return <code>this</code> for convenience
tikhomirov@378: 	 */
tikhomirov@378: 	public HgUpdateConfigCommand add(String section, String key, String value) {
tikhomirov@378: 		throw new UnsupportedOperationException();
tikhomirov@378: 	}
tikhomirov@378: 	
tikhomirov@427: 	/**
tikhomirov@427: 	 * Perform config file update
tikhomirov@427: 	 * 
tikhomirov@427: 	 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
tikhomirov@427: 	 */
tikhomirov@378: 	public void execute() throws HgException {
tikhomirov@378: 		try {
tikhomirov@378: 			ConfigFile cfg = new ConfigFile();
tikhomirov@378: 			cfg.addLocation(configFile);
tikhomirov@378: 			if (toRemove != null) {
tikhomirov@378: 				for (Map.Entry<String,List<String>> s : toRemove.entrySet()) {
tikhomirov@378: 					for (String e : s.getValue()) {
tikhomirov@378: 						cfg.putString(s.getKey(), e, null);
tikhomirov@378: 					}
tikhomirov@378: 				}
tikhomirov@378: 			}
tikhomirov@378: 			if (toSet != null) {
tikhomirov@378: 				for (Map.Entry<String,Map<String,String>> s : toSet.entrySet()) {
tikhomirov@378: 					for (Map.Entry<String, String> e : s.getValue().entrySet()) {
tikhomirov@378: 						cfg.putString(s.getKey(), e.getKey(), e.getValue());
tikhomirov@378: 					}
tikhomirov@378: 				}
tikhomirov@378: 			}
tikhomirov@378: 			cfg.writeTo(configFile);
tikhomirov@378: 		} catch (IOException ex) {
tikhomirov@427: 			String m = String.format("Failed to update configuration file %s", configFile);
tikhomirov@427: 			throw new HgBadArgumentException(m, ex); // TODO [post-1.0] better exception, it's not bad argument case
tikhomirov@378: 		}
tikhomirov@378: 	}
tikhomirov@378: 
tikhomirov@378: 
tikhomirov@378: 	public static void main(String[] args) throws Exception {
tikhomirov@378: 		HgUpdateConfigCommand cmd = HgUpdateConfigCommand.forUser(null);
tikhomirov@378: 		cmd.remove("test1", "sample1");
tikhomirov@378: 		cmd.put("test2", "sample2", "value2");
tikhomirov@378: 		cmd.put("ui", "user-name", "Another User <email@domain.com>");
tikhomirov@378: 		cmd.execute();
tikhomirov@378: 	}
tikhomirov@378: }