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1   /**
2    * Copyright (c) 2013-2023, jcabi.com
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met: 1) Redistributions of source code must retain the above
8    * copyright notice, this list of conditions and the following
9    * disclaimer. 2) Redistributions in binary form must reproduce the above
10   * copyright notice, this list of conditions and the following
11   * disclaimer in the documentation and/or other materials provided
12   * with the distribution. 3) Neither the name of the jcabi.com nor
13   * the names of its contributors may be used to endorse or promote
14   * products derived from this software without specific prior written
15   * permission.
16   *
17   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
19   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21   * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
22   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
28   * OF THE POSSIBILITY OF SUCH DAMAGE.
29   */
30  package com.jcabi.github;
31  
32  import com.jcabi.aspects.Immutable;
33  import java.io.IOException;
34  import javax.json.JsonObject;
35  
36  /**
37   * Github contents.
38   *
39   * @author Andres Candal (andres.candal@rollasolution.com)
40   * @version $Id: df3df790423272d3a85deeaa1e1610d62db8db82 $
41   * @since 0.8
42   * @see <a href="https://developer.github.com/v3/repos/contents/">Contents API</a>
43   * @checkstyle MultipleStringLiteralsCheck (500 lines)
44   */
45  @Immutable
46  @SuppressWarnings("PMD.AvoidDuplicateLiterals")
47  public interface Contents {
48  
49      /**
50       * Owner of them.
51       * @return Repo
52       */
53      Repo repo();
54  
55      /**
56       * Get the Readme file of the default branch (usually master).
57       *
58       * @return The Content of the readme file.
59       * @throws IOException If an IO Exception occurs.
60       * @see <a href="http://https://developer.github.com/v3/repos/contents/#get-the-readme">Get the README</a>
61       */
62      Content readme() throws IOException;
63  
64      /**
65       * Get the Readme file of the specified branch.
66       *
67       * @param branch The branch name
68       * @return The Content of the readme file.
69       * @throws IOException If an IO Exception occurs.
70       * @see <a href="http://https://developer.github.com/v3/repos/contents/#get-the-readme">Get the README</a>
71       */
72      Content readme(String branch) throws IOException;
73  
74      /**
75       * Create new file.
76       * @param content Parameters to create new content
77       * @return Content just created
78       * @throws IOException If there is any I/O problem
79       * @see <a href="https://developer.github.com/v3/repos/contents/#create-a-file">Create a file</a>
80       */
81      Content create(JsonObject content) throws IOException;
82  
83      /**
84       * Get the contents of a single file or symbolic link in a repository.
85       * @param path The content path
86       * @param ref The name of the commit/branch/tag.
87       * @return Content fetched
88       * @throws IOException If there is any I/O problem
89       * @see <a href="https://developer.github.com/v3/repos/contents/#get-contents">Get contents</a>
90       */
91      Content get(String path, String ref) throws IOException;
92  
93      /**
94       * Get the contents of a single file or symbolic link.
95       * in a repository's default branch (usually master).
96       * @param path The content path
97       * @return Content fetched
98       * @throws IOException If there is any I/O problem
99       * @see <a href="https://developer.github.com/v3/repos/contents/#get-contents">Get contents</a>
100      */
101     Content get(String path) throws IOException;
102 
103     /**
104      * Get the contents of a directory in a repository.
105      * @param path The content path
106      * @param ref The name of the commit/branch/tag. Default: the repository's default branch (usually master)
107      * @return Contents fetched
108      * @throws IOException If there is any I/O problem
109      * @see <a href="https://developer.github.com/v3/repos/contents/#get-contents">Get contents</a>
110      */
111     Iterable<Content> iterate(String path, String ref) throws IOException;
112 
113     /**
114      * Removes a file.
115      * @param content Parameters to remove a file
116      * @return RepoCommit referring to this operation
117      * @throws IOException If there is any I/O problem
118      * @see <a href="https://developer.github.com/v3/repos/contents/#delete-a-file">Delete a file</a>
119      */
120     RepoCommit remove(JsonObject content) throws IOException;
121 
122     /**
123      * Updates a file.
124      * @param path The content path.
125      * @param json JSON object containing updates to the content.
126      * @return Commit referring to this operation
127      * @throws IOException If any I/O problems occur.
128      * @see <a href="https://developer.github.com/v3/repos/contents/#update-a-file">Update a file</a>
129      */
130     RepoCommit update(String path, JsonObject json) throws IOException;
131 
132     /**
133      * Check whether content exists or not.
134      * @param path The content path
135      * @param ref The name of the commit/branch/tag.
136      * @return True if content exists, false otherwise.
137      * @throws IOException If there is any I/O problem
138      */
139     boolean exists(String path, String ref) throws IOException;
140 
141 }