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1   /*
2    * Copyright (C) 2008-2013, Google Inc.
3    * Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
4    * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
5    * and other copyright owners as documented in the project's IP log.
6    *
7    * This program and the accompanying materials are made available
8    * under the terms of the Eclipse Distribution License v1.0 which
9    * accompanies this distribution, is reproduced below, and is
10   * available at http://www.eclipse.org/org/documents/edl-v10.php
11   *
12   * All rights reserved.
13   *
14   * Redistribution and use in source and binary forms, with or
15   * without modification, are permitted provided that the following
16   * conditions are met:
17   *
18   * - Redistributions of source code must retain the above copyright
19   *   notice, this list of conditions and the following disclaimer.
20   *
21   * - Redistributions in binary form must reproduce the above
22   *   copyright notice, this list of conditions and the following
23   *   disclaimer in the documentation and/or other materials provided
24   *   with the distribution.
25   *
26   * - Neither the name of the Eclipse Foundation, Inc. nor the
27   *   names of its contributors may be used to endorse or promote
28   *   products derived from this software without specific prior
29   *   written permission.
30   *
31   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
32   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
33   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
34   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
36   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
37   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
38   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
39   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
40   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
41   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
42   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
43   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44   */
45  
46  package org.eclipse.jgit.transport;
47  
48  /**
49   * Wire constants for the native Git protocol.
50   *
51   * @since 3.2
52   */
53  public final class GitProtocolConstants {
54  	/**
55  	 * Include tags if we are also including the referenced objects.
56  	 *
57  	 * @since 3.2
58  	 */
59  	public static final String OPTION_INCLUDE_TAG = "include-tag"; //$NON-NLS-1$
60  
61  	/**
62  	 * Multi-ACK support for improved negotiation.
63  	 *
64  	 * @since 3.2
65  	 */
66  	public static final String OPTION_MULTI_ACK = "multi_ack"; //$NON-NLS-1$
67  
68  	/**
69  	 * Multi-ACK detailed support for improved negotiation.
70  	 *
71  	 * @since 3.2
72  	 */
73  	public static final String OPTION_MULTI_ACK_DETAILED = "multi_ack_detailed"; //$NON-NLS-1$
74  
75  	/**
76  	 * The client supports packs with deltas but not their bases.
77  	 *
78  	 * @since 3.2
79  	 */
80  	public static final String OPTION_THIN_PACK = "thin-pack"; //$NON-NLS-1$
81  
82  	/**
83  	 * The client supports using the side-band for progress messages.
84  	 *
85  	 * @since 3.2
86  	 */
87  	public static final String OPTION_SIDE_BAND = "side-band"; //$NON-NLS-1$
88  
89  	/**
90  	 * The client supports using the 64K side-band for progress messages.
91  	 *
92  	 * @since 3.2
93  	 */
94  	public static final String OPTION_SIDE_BAND_64K = "side-band-64k"; //$NON-NLS-1$
95  
96  	/**
97  	 * The client supports packs with OFS deltas.
98  	 *
99  	 * @since 3.2
100 	 */
101 	public static final String OPTION_OFS_DELTA = "ofs-delta"; //$NON-NLS-1$
102 
103 	/**
104 	 * The client supports shallow fetches.
105 	 *
106 	 * @since 3.2
107 	 */
108 	public static final String OPTION_SHALLOW = "shallow"; //$NON-NLS-1$
109 
110 	/**
111 	 * The client wants the "deepen" command to be interpreted as relative to
112 	 * the client's shallow commits.
113 	 *
114 	 * @since 5.0
115 	 */
116 	public static final String OPTION_DEEPEN_RELATIVE = "deepen-relative"; //$NON-NLS-1$
117 
118 	/**
119 	 * The client does not want progress messages and will ignore them.
120 	 *
121 	 * @since 3.2
122 	 */
123 	public static final String OPTION_NO_PROGRESS = "no-progress"; //$NON-NLS-1$
124 
125 	/**
126 	 * The client supports receiving a pack before it has sent "done".
127 	 *
128 	 * @since 3.2
129 	 */
130 	public static final String OPTION_NO_DONE = "no-done"; //$NON-NLS-1$
131 
132 	/**
133 	 * The client supports fetching objects at the tip of any ref, even if not
134 	 * advertised.
135 	 *
136 	 * @since 3.2
137 	 */
138 	public static final String OPTION_ALLOW_TIP_SHA1_IN_WANT = "allow-tip-sha1-in-want"; //$NON-NLS-1$
139 
140 	/**
141 	 * The client supports fetching objects that are reachable from a tip of a
142 	 * ref that is allowed to fetch.
143 	 *
144 	 * @since 4.1
145 	 */
146 	public static final String OPTION_ALLOW_REACHABLE_SHA1_IN_WANT = "allow-reachable-sha1-in-want"; //$NON-NLS-1$
147 
148 	/**
149 	 * Symbolic reference support for better negotiation.
150 	 *
151 	 * @since 3.6
152 	 */
153 	public static final String OPTION_SYMREF = "symref"; //$NON-NLS-1$
154 
155 	/**
156 	 * The client will send a push certificate.
157 	 *
158 	 * @since 4.0
159 	 */
160 	public static final String OPTION_PUSH_CERT = "push-cert"; //$NON-NLS-1$
161 
162 	/**
163 	 * The client specified a filter expression.
164 	 *
165 	 * @since 5.0
166 	 */
167 	public static final String OPTION_FILTER = "filter"; //$NON-NLS-1$
168 
169 	/**
170 	 * The client specified a want-ref expression.
171 	 *
172 	 * @since 5.1
173 	 */
174 	public static final String OPTION_WANT_REF = "want-ref"; //$NON-NLS-1$
175 
176 	/**
177 	 * The client requested that the whole response be multiplexed, with
178 	 * each non-flush and non-delim pkt prefixed by a sideband designator.
179 	 *
180 	 * @since 5.5
181 	 */
182 	public static final String OPTION_SIDEBAND_ALL = "sideband-all"; //$NON-NLS-1$
183 
184 	/**
185 	 * The client supports atomic pushes. If this option is used, the server
186 	 * will update all refs within one atomic transaction.
187 	 *
188 	 * @since 3.6
189 	 */
190 	public static final String CAPABILITY_ATOMIC = "atomic"; //$NON-NLS-1$
191 
192 	/**
193 	 * The client expects less noise, e.g. no progress.
194 	 *
195 	 * @since 4.0
196 	 */
197 	public static final String CAPABILITY_QUIET = "quiet"; //$NON-NLS-1$
198 
199 	/**
200 	 * The client expects a status report after the server processes the pack.
201 	 *
202 	 * @since 3.2
203 	 */
204 	public static final String CAPABILITY_REPORT_STATUS = "report-status"; //$NON-NLS-1$
205 
206 	/**
207 	 * The server supports deleting refs.
208 	 *
209 	 * @since 3.2
210 	 */
211 	public static final String CAPABILITY_DELETE_REFS = "delete-refs"; //$NON-NLS-1$
212 
213 	/**
214 	 * The server supports packs with OFS deltas.
215 	 *
216 	 * @since 3.2
217 	 */
218 	public static final String CAPABILITY_OFS_DELTA = "ofs-delta"; //$NON-NLS-1$
219 
220 	/**
221 	 * The client supports using the 64K side-band for progress messages.
222 	 *
223 	 * @since 3.2
224 	 */
225 	public static final String CAPABILITY_SIDE_BAND_64K = "side-band-64k"; //$NON-NLS-1$
226 
227 	/**
228 	 * The server allows recording of push certificates.
229 	 *
230 	 * @since 4.0
231 	 */
232 	public static final String CAPABILITY_PUSH_CERT = "push-cert"; //$NON-NLS-1$
233 
234 	/**
235 	 * Implementation name and version of the client or server.
236 	 *
237 	 * @since 4.0
238 	 */
239 	public static final String OPTION_AGENT = "agent"; //$NON-NLS-1$
240 
241 	/**
242 	 * The server supports the receiving of push options.
243 	 *
244 	 * @since 4.5
245 	 */
246 	public static final String CAPABILITY_PUSH_OPTIONS = "push-options"; //$NON-NLS-1$
247 
248 	/**
249 	 * The server supports the client specifying ref names.
250 	 *
251 	 * @since 5.1
252 	 */
253 	public static final String CAPABILITY_REF_IN_WANT = "ref-in-want"; //$NON-NLS-1$
254 
255 	/**
256 	 * The server supports arbitrary options
257 	 *
258 	 * @since 5.2
259 	 */
260 	public static final String CAPABILITY_SERVER_OPTION = "server-option"; //$NON-NLS-1$
261 
262 	/**
263 	 * Option for passing application-specific options to the server.
264 	 *
265 	 * @since 5.2
266 	 */
267 	public static final String OPTION_SERVER_OPTION = "server-option"; //$NON-NLS-1$
268 
269 	/**
270 	 * The server supports listing refs using protocol v2.
271 	 *
272 	 * @since 5.0
273 	 */
274 	public static final String COMMAND_LS_REFS = "ls-refs"; //$NON-NLS-1$
275 
276 	/**
277 	 * The server supports fetch using protocol v2.
278 	 *
279 	 * @since 5.0
280 	 */
281 	public static final String COMMAND_FETCH = "fetch"; //$NON-NLS-1$
282 
283 	static enum MultiAck {
284 		OFF, CONTINUE, DETAILED;
285 	}
286 
287 	private GitProtocolConstants() {
288 	}
289 }