1 /*
2  * Copyright (C) the libgit2 contributors. All rights reserved.
3  *
4  * This file is part of libgit2, distributed under the GNU GPL v2 with
5  * a Linking Exception. For full terms see the included COPYING file.
6  */
7 #ifndef INCLUDE_git_reset_h__
8 #define INCLUDE_git_reset_h__
9 
10 #include "common.h"
11 #include "types.h"
12 #include "strarray.h"
13 #include "checkout.h"
14 
15 /**
16  * @file git2/reset.h
17  * @brief Git reset management routines
18  * @ingroup Git
19  * @{
20  */
21 GIT_BEGIN_DECL
22 
23 /**
24  * Kinds of reset operation
25  */
26 typedef enum {
27 	GIT_RESET_SOFT  = 1, /**< Move the head to the given commit */
28 	GIT_RESET_MIXED = 2, /**< SOFT plus reset index to the commit */
29 	GIT_RESET_HARD  = 3, /**< MIXED plus changes in working tree discarded */
30 } git_reset_t;
31 
32 /**
33  * Sets the current head to the specified commit oid and optionally
34  * resets the index and working tree to match.
35  *
36  * SOFT reset means the Head will be moved to the commit.
37  *
38  * MIXED reset will trigger a SOFT reset, plus the index will be replaced
39  * with the content of the commit tree.
40  *
41  * HARD reset will trigger a MIXED reset and the working directory will be
42  * replaced with the content of the index.  (Untracked and ignored files
43  * will be left alone, however.)
44  *
45  * TODO: Implement remaining kinds of resets.
46  *
47  * @param repo Repository where to perform the reset operation.
48  *
49  * @param target Committish to which the Head should be moved to. This object
50  * must belong to the given `repo` and can either be a git_commit or a
51  * git_tag. When a git_tag is being passed, it should be dereferencable
52  * to a git_commit which oid will be used as the target of the branch.
53  *
54  * @param reset_type Kind of reset operation to perform.
55  *
56  * @param checkout_opts Optional checkout options to be used for a HARD reset.
57  * The checkout_strategy field will be overridden (based on reset_type).
58  * This parameter can be used to propagate notify and progress callbacks.
59  *
60  * @return 0 on success or an error code
61  */
62 GIT_EXTERN(int) git_reset(
63 	git_repository *repo,
64 	const git_object *target,
65 	git_reset_t reset_type,
66 	const git_checkout_options *checkout_opts);
67 
68 /**
69  * Sets the current head to the specified commit oid and optionally
70  * resets the index and working tree to match.
71  *
72  * This behaves like `git_reset()` but takes an annotated commit,
73  * which lets you specify which extended sha syntax string was
74  * specified by a user, allowing for more exact reflog messages.
75  *
76  * See the documentation for `git_reset()`.
77  *
78  * @see git_reset
79  */
80 GIT_EXTERN(int) git_reset_from_annotated(
81 	git_repository *repo,
82 	const git_annotated_commit *commit,
83 	git_reset_t reset_type,
84 	const git_checkout_options *checkout_opts);
85 
86 /**
87  * Updates some entries in the index from the target commit tree.
88  *
89  * The scope of the updated entries is determined by the paths
90  * being passed in the `pathspec` parameters.
91  *
92  * Passing a NULL `target` will result in removing
93  * entries in the index matching the provided pathspecs.
94  *
95  * @param repo Repository where to perform the reset operation.
96  *
97  * @param target The committish which content will be used to reset the content
98  * of the index.
99  *
100  * @param pathspecs List of pathspecs to operate on.
101  *
102  * @return 0 on success or an error code < 0
103  */
104 GIT_EXTERN(int) git_reset_default(
105 	git_repository *repo,
106 	const git_object *target,
107 	const git_strarray* pathspecs);
108 
109 /** @} */
110 GIT_END_DECL
111 #endif
112