org.eclipse.jgit/src/org/eclipse/jgit/transport/URIish.java - jgit - Git at Google

 /*
  * Copyright (C) 2009, Mykola Nikishov <mn@mn.com.ua>
  * Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
  * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
  * Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com>
  * and other copyright owners as documented in the project's IP log.
  *
  * This program and the accompanying materials are made available
  * under the terms of the Eclipse Distribution License v1.0 which
  * accompanies this distribution, is reproduced below, and is
  * available at http://www.eclipse.org/org/documents/edl-v10.php
  *
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or
  * without modification, are permitted provided that the following
  * conditions are met:
  *
  * - Redistributions of source code must retain the above copyright
  *   notice, this list of conditions and the following disclaimer.
  *
  * - Redistributions in binary form must reproduce the above
  *   copyright notice, this list of conditions and the following
  *   disclaimer in the documentation and/or other materials provided
  *   with the distribution.
  *
  * - Neither the name of the Eclipse Foundation, Inc. nor the
  *   names of its contributors may be used to endorse or promote
  *   products derived from this software without specific prior
  *   written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 package org.eclipse.jgit.transport;

 import java.io.Serializable;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

 import org.eclipse.jgit.JGitText;
 import org.eclipse.jgit.lib.Constants;

 /**
  * This URI like construct used for referencing Git archives over the net, as
  * well as locally stored archives. The most important difference compared to
  * RFC 2396 URI's is that no URI encoding/decoding ever takes place. A space or
  * any special character is written as-is.
  */
 public class URIish implements Serializable {
 	/**
 	 * Part of a pattern which matches the scheme part (git, http, ...) of an
 	 * URI. Defines one capturing group containing the scheme without the
 	 * trailing colon and slashes
 	 */
 	private static final String SCHEME_P = "([a-z][a-z0-9+-]+)://";

 	/**
 	 * Part of a pattern which matches the optional user/password part (e.g.
 	 * root:pwd@ in git://root:pwd@host.xyz/a.git) of URIs. Defines two
 	 * capturing groups: the first containing the user and the second containing
 	 * the password
 	 */
 	private static final String OPT_USER_PWD_P = "(?:([^\\\\/:@]+)(?::([^\\\\/]+))?@)?";

 	/**
 	 * Part of a pattern which matches the host part of URIs. Defines one
 	 * capturing group containing the host name.
 	 */
 	private static final String HOST_P = "([^\\\\/:]+)";

 	/**
 	 * Part of a pattern which matches the optional port part of URIs. Defines
 	 * one capturing group containing the port without the preceding colon.
 	 */
 	private static final String OPT_PORT_P = "(?::(\\d+))?";

 	/**
 	 * Part of a pattern which matches the ~username part (e.g. /~root in
 	 * git://host.xyz/~root/a.git) of URIs. Defines no capturing group.
 	 */
 	private static final String USER_HOME_P = "(?:/~(?:[^\\\\/]+))";

 	/**
 	 * Part of a pattern which matches the optional drive letter in paths (e.g.
 	 * D: in file:///D:/a.txt). Defines no capturing group.
 	 */
 	private static final String OPT_DRIVE_LETTER_P = "(?:[A-Za-z]:)?";

 	/**
 	 * Part of a pattern which matches a relative path. Relative paths don't
 	 * start with slash or drive letters. Defines no capturing group.
 	 */
 	private static final String RELATIVE_PATH_P = "(?:(?:[^\\\\/]+[\\\\/])*[^\\\\/]+[\\\\/]?)";

 	/**
 	 * Part of a pattern which matches a relative or absolute path. Defines no
 	 * capturing group.
 	 */
 	private static final String PATH_P = "(" + OPT_DRIVE_LETTER_P + "[\\\\/]?"
 			+ RELATIVE_PATH_P + ")";

 	private static final long serialVersionUID = 1L;

 	/**
 	 * A pattern matching standard URI: </br>
 	 * <code>scheme "://" user_password? hostname? portnumber? path</code>
 	 */
 	private static final Pattern FULL_URI = Pattern.compile("^" //
 			+ SCHEME_P //
 			+ "(?:" // start a group containing hostname and all options only
 					// availabe when a hostname is there
 			+ OPT_USER_PWD_P //
 			+ HOST_P //
 			+ OPT_PORT_P //
 			+ "(" // open a catpuring group the the user-home-dir part
 			+ (USER_HOME_P + "?") //
 			+ "[\\\\/])" //
 			+ ")?" // close the optional group containing hostname
 			+ "(.+)?" //
 			+ "$");

 	/**
 	 * A pattern matching the reference to a local file. This may be an absolute
 	 * path (maybe even containing windows drive-letters) or a relative path.
 	 */
 	private static final Pattern LOCAL_FILE = Pattern.compile("^" //
 			+ "([\\\\/]?" + PATH_P + ")" //
 			+ "$");

 	/**
 	 * A pattern matching a URI for the scheme 'file' which has only ':/' as
 	 * separator between scheme and path. Standard file URIs have '://' as
 	 * separator, but java.io.File.toURI() constructs those URIs.
 	 */
 	private static final Pattern SINGLE_SLASH_FILE_URI = Pattern.compile("^" //
 			+ "(file):([\\\\/](?![\\\\/])" //
 			+ PATH_P //
 			+ ")$");

 	/**
 	 * A pattern matching a SCP URI's of the form user@host:path/to/repo.git
 	 */
 	private static final Pattern RELATIVE_SCP_URI = Pattern.compile("^" //
 			+ OPT_USER_PWD_P //
 			+ HOST_P //
 			+ ":(" //
 			+ ("(?:" + USER_HOME_P + "[\\\\/])?") //
 			+ RELATIVE_PATH_P //
 			+ ")$");

 	/**
 	 * A pattern matching a SCP URI's of the form user@host:/path/to/repo.git
 	 */
 	private static final Pattern ABSOLUTE_SCP_URI = Pattern.compile("^" //
 			+ OPT_USER_PWD_P //
 			+ "([^\\\\/:]{2,})" //
 			+ ":(" //
 			+ "[\\\\/]" + RELATIVE_PATH_P //
 			+ ")$");

 	private String scheme;

 	private String path;

 	private String user;

 	private String pass;

 	private int port = -1;

 	private String host;

 	/**
 	 * Parse and construct an {@link URIish} from a string
 	 *
 	 * @param s
 	 * @throws URISyntaxException
 	 */
 	public URIish(String s) throws URISyntaxException {
 		Matcher matcher = SINGLE_SLASH_FILE_URI.matcher(s);
 		if (matcher.matches()) {
 			scheme = matcher.group(1);
 			path = cleanLeadingSlashes(matcher.group(2), scheme);
 		} else {
 			matcher = FULL_URI.matcher(s);
 			if (matcher.matches()) {
 				scheme = matcher.group(1);
 				user = matcher.group(2);
 				pass = matcher.group(3);
 				host = matcher.group(4);
 				if (matcher.group(5) != null)
 					port = Integer.parseInt(matcher.group(5));
 				path = cleanLeadingSlashes(
 						n2e(matcher.group(6)) + n2e(matcher.group(7)),
 						scheme);
 			} else {
 				matcher = RELATIVE_SCP_URI.matcher(s);
 				if (matcher.matches()) {
 					user = matcher.group(1);
 					pass = matcher.group(2);
 					host = matcher.group(3);
 					path = matcher.group(4);
 				} else {
 					matcher = ABSOLUTE_SCP_URI.matcher(s);
 					if (matcher.matches()) {
 						user = matcher.group(1);
 						pass = matcher.group(2);
 						host = matcher.group(3);
 						path = matcher.group(4);
 					} else {
 						matcher = LOCAL_FILE.matcher(s);
 						if (matcher.matches()) {
 							path = matcher.group(1);
 						} else
 							throw new URISyntaxException(s,
 									JGitText.get().cannotParseGitURIish);
 					}
 				}
 			}
 		}
 	}

 	private String n2e(String s) {
 		if (s == null)
 			return "";
 		else
 			return s;
 	}

 	// takes care to cut of a leading slash if a windows drive letter or a
 	// user-home-dir specifications are
 	private String cleanLeadingSlashes(String p, String s) {
 		if (p.length() >= 3
 				&& p.charAt(0) == '/'
 				&& p.charAt(2) == ':'
 				&& (p.charAt(1) >= 'A' && p.charAt(1) <= 'Z' || p.charAt(1) >= 'a'
 						&& p.charAt(1) <= 'z'))
 			return p.substring(1);
 		else if (s != null && p.length() >= 2 && p.charAt(0) == '/'
 				&& p.charAt(1) == '~')
 			return p.substring(1);
 		else
 			return p;
 	}

 	/**
 	 * Construct a URIish from a standard URL.
 	 *
 	 * @param u
 	 *            the source URL to convert from.
 	 */
 	public URIish(final URL u) {
 		scheme = u.getProtocol();
 		path = u.getPath();

 		final String ui = u.getUserInfo();
 		if (ui != null) {
 			final int d = ui.indexOf(':');
 			user = d < 0 ? ui : ui.substring(0, d);
 			pass = d < 0 ? null : ui.substring(d + 1);
 		}

 		port = u.getPort();
 		host = u.getHost();
 	}

 	/** Create an empty, non-configured URI. */
 	public URIish() {
 		// Configure nothing.
 	}

 	private URIish(final URIish u) {
 		this.scheme = u.scheme;
 		this.path = u.path;
 		this.user = u.user;
 		this.pass = u.pass;
 		this.port = u.port;
 		this.host = u.host;
 	}

 	/**
 	 * @return true if this URI references a repository on another system.
 	 */
 	public boolean isRemote() {
 		return getHost() != null;
 	}

 	/**
 	 * @return host name part or null
 	 */
 	public String getHost() {
 		return host;
 	}

 	/**
 	 * Return a new URI matching this one, but with a different host.
 	 *
 	 * @param n
 	 *            the new value for host.
 	 * @return a new URI with the updated value.
 	 */
 	public URIish setHost(final String n) {
 		final URIish r = new URIish(this);
 		r.host = n;
 		return r;
 	}

 	/**
 	 * @return protocol name or null for local references
 	 */
 	public String getScheme() {
 		return scheme;
 	}

 	/**
 	 * Return a new URI matching this one, but with a different scheme.
 	 *
 	 * @param n
 	 *            the new value for scheme.
 	 * @return a new URI with the updated value.
 	 */
 	public URIish setScheme(final String n) {
 		final URIish r = new URIish(this);
 		r.scheme = n;
 		return r;
 	}

 	/**
 	 * @return path name component
 	 */
 	public String getPath() {
 		return path;
 	}

 	/**
 	 * Return a new URI matching this one, but with a different path.
 	 *
 	 * @param n
 	 *            the new value for path.
 	 * @return a new URI with the updated value.
 	 */
 	public URIish setPath(final String n) {
 		final URIish r = new URIish(this);
 		r.path = n;
 		return r;
 	}

 	/**
 	 * @return user name requested for transfer or null
 	 */
 	public String getUser() {
 		return user;
 	}

 	/**
 	 * Return a new URI matching this one, but with a different user.
 	 *
 	 * @param n
 	 *            the new value for user.
 	 * @return a new URI with the updated value.
 	 */
 	public URIish setUser(final String n) {
 		final URIish r = new URIish(this);
 		r.user = n;
 		return r;
 	}

 	/**
 	 * @return password requested for transfer or null
 	 */
 	public String getPass() {
 		return pass;
 	}

 	/**
 	 * Return a new URI matching this one, but with a different password.
 	 *
 	 * @param n
 	 *            the new value for password.
 	 * @return a new URI with the updated value.
 	 */
 	public URIish setPass(final String n) {
 		final URIish r = new URIish(this);
 		r.pass = n;
 		return r;
 	}

 	/**
 	 * @return port number requested for transfer or -1 if not explicit
 	 */
 	public int getPort() {
 		return port;
 	}

 	/**
 	 * Return a new URI matching this one, but with a different port.
 	 *
 	 * @param n
 	 *            the new value for port.
 	 * @return a new URI with the updated value.
 	 */
 	public URIish setPort(final int n) {
 		final URIish r = new URIish(this);
 		r.port = n > 0 ? n : -1;
 		return r;
 	}

 	public int hashCode() {
 		int hc = 0;
 		if (getScheme() != null)
 			hc = hc * 31 + getScheme().hashCode();
 		if (getUser() != null)
 			hc = hc * 31 + getUser().hashCode();
 		if (getPass() != null)
 			hc = hc * 31 + getPass().hashCode();
 		if (getHost() != null)
 			hc = hc * 31 + getHost().hashCode();
 		if (getPort() > 0)
 			hc = hc * 31 + getPort();
 		if (getPath() != null)
 			hc = hc * 31 + getPath().hashCode();
 		return hc;
 	}

 	public boolean equals(final Object obj) {
 		if (!(obj instanceof URIish))
 			return false;
 		final URIish b = (URIish) obj;
 		if (!eq(getScheme(), b.getScheme()))
 			return false;
 		if (!eq(getUser(), b.getUser()))
 			return false;
 		if (!eq(getPass(), b.getPass()))
 			return false;
 		if (!eq(getHost(), b.getHost()))
 			return false;
 		if (getPort() != b.getPort())
 			return false;
 		if (!eq(getPath(), b.getPath()))
 			return false;
 		return true;
 	}

 	private static boolean eq(final String a, final String b) {
 		if (a == b)
 			return true;
 		if (a == null || b == null)
 			return false;
 		return a.equals(b);
 	}

 	/**
 	 * Obtain the string form of the URI, with the password included.
 	 *
 	 * @return the URI, including its password field, if any.
 	 */
 	public String toPrivateString() {
 		return format(true);
 	}

 	public String toString() {
 		return format(false);
 	}

 	private String format(final boolean includePassword) {
 		final StringBuilder r = new StringBuilder();
 		if (getScheme() != null) {
 			r.append(getScheme());
 			r.append("://");
 		}

 		if (getUser() != null) {
 			r.append(getUser());
 			if (includePassword && getPass() != null) {
 				r.append(':');
 				r.append(getPass());
 			}
 		}

 		if (getHost() != null) {
 			if (getUser() != null)
 				r.append('@');
 			r.append(getHost());
 			if (getScheme() != null && getPort() > 0) {
 				r.append(':');
 				r.append(getPort());
 			}
 		}

 		if (getPath() != null) {
 			if (getScheme() != null) {
 				if (!getPath().startsWith("/"))
 					r.append('/');
 			} else if (getHost() != null)
 				r.append(':');
 			r.append(getPath());
 		}

 		return r.toString();
 	}

 	/**
 	 * Get the "humanish" part of the path. Some examples of a 'humanish' part
 	 * for a full path:
 	 * <table>
 	 * <tr>
 	 * <th>Path</th>
 	 * <th>Humanish part</th>
 	 * </tr>
 	 * <tr>
 	 * <td><code>/path/to/repo.git</code></td>
 	 * <td rowspan="4"><code>repo</code></td>
 	 * </tr>
 	 * <tr>
 	 * <td><code>/path/to/repo.git/</code></td>
 	 * </tr>
 	 * <tr>
 	 * <td><code>/path/to/repo/.git</code></td>
 	 * </tr>
 	 * <tr>
 	 * <td><code>/path/to/repo/</code></td>
 	 * </tr>
 	 * <tr>
 	 * <td><code>/path//to</code></td>
 	 * <td>an empty string</td>
 	 * </tr>
 	 * </table>
 	 *
 	 * @return the "humanish" part of the path. May be an empty string. Never
 	 *         {@code null}.
 	 * @throws IllegalArgumentException
 	 *             if it's impossible to determine a humanish part, or path is
 	 *             {@code null} or empty
 	 * @see #getPath
 	 */
 	public String getHumanishName() throws IllegalArgumentException {
 		if ("".equals(getPath()) || getPath() == null)
 			throw new IllegalArgumentException();
 		String[] elements = getPath().split("/");
 		if (elements.length == 0)
 			throw new IllegalArgumentException();
 		String result = elements[elements.length - 1];
 		if (Constants.DOT_GIT.equals(result))
 			result = elements[elements.length - 2];
 		else if (result.endsWith(Constants.DOT_GIT_EXT))
 			result = result.substring(0, result.length()
 					- Constants.DOT_GIT_EXT.length());
 		return result;
 	}

 }
	/*
	* Copyright (C) 2009, Mykola Nikishov <mn@mn.com.ua>
	* Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
	* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
	* Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com>
	* and other copyright owners as documented in the project's IP log.
	*
	* This program and the accompanying materials are made available
	* under the terms of the Eclipse Distribution License v1.0 which
	* accompanies this distribution, is reproduced below, and is
	* available at http://www.eclipse.org/org/documents/edl-v10.php
	*
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or
	* without modification, are permitted provided that the following
	* conditions are met:
	*
	* - Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	*
	* - Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following
	* disclaimer in the documentation and/or other materials provided
	* with the distribution.
	*
	* - Neither the name of the Eclipse Foundation, Inc. nor the
	* names of its contributors may be used to endorse or promote
	* products derived from this software without specific prior
	* written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
	* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	package org.eclipse.jgit.transport;

	import java.io.Serializable;
	import java.net.URISyntaxException;
	import java.net.URL;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

	import org.eclipse.jgit.JGitText;
	import org.eclipse.jgit.lib.Constants;

	/**
	* This URI like construct used for referencing Git archives over the net, as
	* well as locally stored archives. The most important difference compared to
	* RFC 2396 URI's is that no URI encoding/decoding ever takes place. A space or
	* any special character is written as-is.
	*/
	public class URIish implements Serializable {
	/**
	* Part of a pattern which matches the scheme part (git, http, ...) of an
	* URI. Defines one capturing group containing the scheme without the
	* trailing colon and slashes
	*/
	private static final String SCHEME_P = "([a-z][a-z0-9+-]+)://";

	/**
	* Part of a pattern which matches the optional user/password part (e.g.
	* root:pwd@ in git://root:pwd@host.xyz/a.git) of URIs. Defines two
	* capturing groups: the first containing the user and the second containing
	* the password
	*/
	private static final String OPT_USER_PWD_P = "(?:([^\\\\/:@]+)(?::([^\\\\/]+))?@)?";

	/**
	* Part of a pattern which matches the host part of URIs. Defines one
	* capturing group containing the host name.
	*/
	private static final String HOST_P = "([^\\\\/:]+)";

	/**
	* Part of a pattern which matches the optional port part of URIs. Defines
	* one capturing group containing the port without the preceding colon.
	*/
	private static final String OPT_PORT_P = "(?::(\\d+))?";

	/**
	* Part of a pattern which matches the ~username part (e.g. /~root in
	* git://host.xyz/~root/a.git) of URIs. Defines no capturing group.
	*/
	private static final String USER_HOME_P = "(?:/~(?:[^\\\\/]+))";

	/**
	* Part of a pattern which matches the optional drive letter in paths (e.g.
	* D: in file:///D:/a.txt). Defines no capturing group.
	*/
	private static final String OPT_DRIVE_LETTER_P = "(?:[A-Za-z]:)?";

	/**
	* Part of a pattern which matches a relative path. Relative paths don't
	* start with slash or drive letters. Defines no capturing group.
	*/
	private static final String RELATIVE_PATH_P = "(?:(?:[^\\\\/]+[\\\\/])*[^\\\\/]+[\\\\/]?)";

	/**
	* Part of a pattern which matches a relative or absolute path. Defines no
	* capturing group.
	*/
	private static final String PATH_P = "(" + OPT_DRIVE_LETTER_P + "[\\\\/]?"
	+ RELATIVE_PATH_P + ")";

	private static final long serialVersionUID = 1L;

	/**
	* A pattern matching standard URI: </br>
	* <code>scheme "://" user_password? hostname? portnumber? path</code>
	*/
	private static final Pattern FULL_URI = Pattern.compile("^" //
	+ SCHEME_P //
	+ "(?:" // start a group containing hostname and all options only
	// availabe when a hostname is there
	+ OPT_USER_PWD_P //
	+ HOST_P //
	+ OPT_PORT_P //
	+ "(" // open a catpuring group the the user-home-dir part
	+ (USER_HOME_P + "?") //
	+ "[\\\\/])" //
	+ ")?" // close the optional group containing hostname
	+ "(.+)?" //
	+ "$");

	/**
	* A pattern matching the reference to a local file. This may be an absolute
	* path (maybe even containing windows drive-letters) or a relative path.
	*/
	private static final Pattern LOCAL_FILE = Pattern.compile("^" //
	+ "([\\\\/]?" + PATH_P + ")" //
	+ "$");

	/**
	* A pattern matching a URI for the scheme 'file' which has only ':/' as
	* separator between scheme and path. Standard file URIs have '://' as
	* separator, but java.io.File.toURI() constructs those URIs.
	*/
	private static final Pattern SINGLE_SLASH_FILE_URI = Pattern.compile("^" //
	+ "(file):([\\\\/](?![\\\\/])" //
	+ PATH_P //
	+ ")$");

	/**
	* A pattern matching a SCP URI's of the form user@host:path/to/repo.git
	*/
	private static final Pattern RELATIVE_SCP_URI = Pattern.compile("^" //
	+ OPT_USER_PWD_P //
	+ HOST_P //
	+ ":(" //
	+ ("(?:" + USER_HOME_P + "[\\\\/])?") //
	+ RELATIVE_PATH_P //
	+ ")$");

	/**
	* A pattern matching a SCP URI's of the form user@host:/path/to/repo.git
	*/
	private static final Pattern ABSOLUTE_SCP_URI = Pattern.compile("^" //
	+ OPT_USER_PWD_P //
	+ "([^\\\\/:]{2,})" //
	+ ":(" //
	+ "[\\\\/]" + RELATIVE_PATH_P //
	+ ")$");

	private String scheme;

	private String path;

	private String user;

	private String pass;

	private int port = -1;

	private String host;

	/**
	* Parse and construct an {@link URIish} from a string
	*
	* @param s
	* @throws URISyntaxException
	*/
	public URIish(String s) throws URISyntaxException {
	Matcher matcher = SINGLE_SLASH_FILE_URI.matcher(s);
	if (matcher.matches()) {
	scheme = matcher.group(1);
	path = cleanLeadingSlashes(matcher.group(2), scheme);
	} else {
	matcher = FULL_URI.matcher(s);
	if (matcher.matches()) {
	scheme = matcher.group(1);
	user = matcher.group(2);
	pass = matcher.group(3);
	host = matcher.group(4);
	if (matcher.group(5) != null)
	port = Integer.parseInt(matcher.group(5));
	path = cleanLeadingSlashes(
	n2e(matcher.group(6)) + n2e(matcher.group(7)),
	scheme);
	} else {
	matcher = RELATIVE_SCP_URI.matcher(s);
	if (matcher.matches()) {
	user = matcher.group(1);
	pass = matcher.group(2);
	host = matcher.group(3);
	path = matcher.group(4);
	} else {
	matcher = ABSOLUTE_SCP_URI.matcher(s);
	if (matcher.matches()) {
	user = matcher.group(1);
	pass = matcher.group(2);
	host = matcher.group(3);
	path = matcher.group(4);
	} else {
	matcher = LOCAL_FILE.matcher(s);
	if (matcher.matches()) {
	path = matcher.group(1);
	} else
	throw new URISyntaxException(s,
	JGitText.get().cannotParseGitURIish);
	}
	}
	}
	}
	}

	private String n2e(String s) {
	if (s == null)
	return "";
	else
	return s;
	}

	// takes care to cut of a leading slash if a windows drive letter or a
	// user-home-dir specifications are
	private String cleanLeadingSlashes(String p, String s) {
	if (p.length() >= 3
	&& p.charAt(0) == '/'
	&& p.charAt(2) == ':'
	&& (p.charAt(1) >= 'A' && p.charAt(1) <= 'Z' \|\| p.charAt(1) >= 'a'
	&& p.charAt(1) <= 'z'))
	return p.substring(1);
	else if (s != null && p.length() >= 2 && p.charAt(0) == '/'
	&& p.charAt(1) == '~')
	return p.substring(1);
	else
	return p;
	}

	/**
	* Construct a URIish from a standard URL.
	*
	* @param u
	* the source URL to convert from.
	*/
	public URIish(final URL u) {
	scheme = u.getProtocol();
	path = u.getPath();

	final String ui = u.getUserInfo();
	if (ui != null) {
	final int d = ui.indexOf(':');
	user = d < 0 ? ui : ui.substring(0, d);
	pass = d < 0 ? null : ui.substring(d + 1);
	}

	port = u.getPort();
	host = u.getHost();
	}

	/** Create an empty, non-configured URI. */
	public URIish() {
	// Configure nothing.
	}

	private URIish(final URIish u) {
	this.scheme = u.scheme;
	this.path = u.path;
	this.user = u.user;
	this.pass = u.pass;
	this.port = u.port;
	this.host = u.host;
	}

	/**
	* @return true if this URI references a repository on another system.
	*/
	public boolean isRemote() {
	return getHost() != null;
	}

	/**
	* @return host name part or null
	*/
	public String getHost() {
	return host;
	}

	/**
	* Return a new URI matching this one, but with a different host.
	*
	* @param n
	* the new value for host.
	* @return a new URI with the updated value.
	*/
	public URIish setHost(final String n) {
	final URIish r = new URIish(this);
	r.host = n;
	return r;
	}

	/**
	* @return protocol name or null for local references
	*/
	public String getScheme() {
	return scheme;
	}

	/**
	* Return a new URI matching this one, but with a different scheme.
	*
	* @param n
	* the new value for scheme.
	* @return a new URI with the updated value.
	*/
	public URIish setScheme(final String n) {
	final URIish r = new URIish(this);
	r.scheme = n;
	return r;
	}

	/**
	* @return path name component
	*/
	public String getPath() {
	return path;
	}

	/**
	* Return a new URI matching this one, but with a different path.
	*
	* @param n
	* the new value for path.
	* @return a new URI with the updated value.
	*/
	public URIish setPath(final String n) {
	final URIish r = new URIish(this);
	r.path = n;
	return r;
	}

	/**
	* @return user name requested for transfer or null
	*/
	public String getUser() {
	return user;
	}

	/**
	* Return a new URI matching this one, but with a different user.
	*
	* @param n
	* the new value for user.
	* @return a new URI with the updated value.
	*/
	public URIish setUser(final String n) {
	final URIish r = new URIish(this);
	r.user = n;
	return r;
	}

	/**
	* @return password requested for transfer or null
	*/
	public String getPass() {
	return pass;
	}

	/**
	* Return a new URI matching this one, but with a different password.
	*
	* @param n
	* the new value for password.
	* @return a new URI with the updated value.
	*/
	public URIish setPass(final String n) {
	final URIish r = new URIish(this);
	r.pass = n;
	return r;
	}

	/**
	* @return port number requested for transfer or -1 if not explicit
	*/
	public int getPort() {
	return port;
	}

	/**
	* Return a new URI matching this one, but with a different port.
	*
	* @param n
	* the new value for port.
	* @return a new URI with the updated value.
	*/
	public URIish setPort(final int n) {
	final URIish r = new URIish(this);
	r.port = n > 0 ? n : -1;
	return r;
	}

	public int hashCode() {
	int hc = 0;
	if (getScheme() != null)
	hc = hc * 31 + getScheme().hashCode();
	if (getUser() != null)
	hc = hc * 31 + getUser().hashCode();
	if (getPass() != null)
	hc = hc * 31 + getPass().hashCode();
	if (getHost() != null)
	hc = hc * 31 + getHost().hashCode();
	if (getPort() > 0)
	hc = hc * 31 + getPort();
	if (getPath() != null)
	hc = hc * 31 + getPath().hashCode();
	return hc;
	}

	public boolean equals(final Object obj) {
	if (!(obj instanceof URIish))
	return false;
	final URIish b = (URIish) obj;
	if (!eq(getScheme(), b.getScheme()))
	return false;
	if (!eq(getUser(), b.getUser()))
	return false;
	if (!eq(getPass(), b.getPass()))
	return false;
	if (!eq(getHost(), b.getHost()))
	return false;
	if (getPort() != b.getPort())
	return false;
	if (!eq(getPath(), b.getPath()))
	return false;
	return true;
	}

	private static boolean eq(final String a, final String b) {
	if (a == b)
	return true;
	if (a == null \|\| b == null)
	return false;
	return a.equals(b);
	}

	/**
	* Obtain the string form of the URI, with the password included.
	*
	* @return the URI, including its password field, if any.
	*/
	public String toPrivateString() {
	return format(true);
	}

	public String toString() {
	return format(false);
	}

	private String format(final boolean includePassword) {
	final StringBuilder r = new StringBuilder();
	if (getScheme() != null) {
	r.append(getScheme());
	r.append("://");
	}

	if (getUser() != null) {
	r.append(getUser());
	if (includePassword && getPass() != null) {
	r.append(':');
	r.append(getPass());
	}
	}

	if (getHost() != null) {
	if (getUser() != null)
	r.append('@');
	r.append(getHost());
	if (getScheme() != null && getPort() > 0) {
	r.append(':');
	r.append(getPort());
	}
	}

	if (getPath() != null) {
	if (getScheme() != null) {
	if (!getPath().startsWith("/"))
	r.append('/');
	} else if (getHost() != null)
	r.append(':');
	r.append(getPath());
	}

	return r.toString();
	}

	/**
	* Get the "humanish" part of the path. Some examples of a 'humanish' part
	* for a full path:
	* <table>
	* <tr>
	* <th>Path</th>
	* <th>Humanish part</th>
	* </tr>
	* <tr>
	* <td><code>/path/to/repo.git</code></td>
	* <td rowspan="4"><code>repo</code></td>
	* </tr>
	* <tr>
	* <td><code>/path/to/repo.git/</code></td>
	* </tr>
	* <tr>
	* <td><code>/path/to/repo/.git</code></td>
	* </tr>
	* <tr>
	* <td><code>/path/to/repo/</code></td>
	* </tr>
	* <tr>
	* <td><code>/path//to</code></td>
	* <td>an empty string</td>
	* </tr>
	* </table>
	*
	* @return the "humanish" part of the path. May be an empty string. Never
	* {@code null}.
	* @throws IllegalArgumentException
	* if it's impossible to determine a humanish part, or path is
	* {@code null} or empty
	* @see #getPath
	*/
	public String getHumanishName() throws IllegalArgumentException {
	if ("".equals(getPath()) \|\| getPath() == null)
	throw new IllegalArgumentException();
	String[] elements = getPath().split("/");
	if (elements.length == 0)
	throw new IllegalArgumentException();
	String result = elements[elements.length - 1];
	if (Constants.DOT_GIT.equals(result))
	result = elements[elements.length - 2];
	else if (result.endsWith(Constants.DOT_GIT_EXT))
	result = result.substring(0, result.length()
	- Constants.DOT_GIT_EXT.length());
	return result;
	}

	}