]> git.ipfire.org Git - thirdparty/git.git/blob - worktree.h
Merge branch 'ew/fetch-no-write-fetch-head-fix'
[thirdparty/git.git] / worktree.h
1 #ifndef WORKTREE_H
2 #define WORKTREE_H
3
4 #include "refs.h"
5
6 struct strbuf;
7
8 struct worktree {
9 char *path;
10 char *id;
11 char *head_ref; /* NULL if HEAD is broken or detached */
12 char *lock_reason; /* private - use worktree_lock_reason */
13 char *prune_reason; /* private - use worktree_prune_reason */
14 struct object_id head_oid;
15 int is_detached;
16 int is_bare;
17 int is_current;
18 int lock_reason_valid; /* private */
19 int prune_reason_valid; /* private */
20 };
21
22 /*
23 * Get the worktrees. The primary worktree will always be the first returned,
24 * and linked worktrees will follow in no particular order.
25 *
26 * The caller is responsible for freeing the memory from the returned
27 * worktrees by calling free_worktrees().
28 */
29 struct worktree **get_worktrees(void);
30
31 /*
32 * Returns 1 if linked worktrees exist, 0 otherwise.
33 */
34 int submodule_uses_worktrees(const char *path);
35
36 /*
37 * Return git dir of the worktree. Note that the path may be relative.
38 * If wt is NULL, git dir of current worktree is returned.
39 */
40 const char *get_worktree_git_dir(const struct worktree *wt);
41
42 /*
43 * Search for the worktree identified unambiguously by `arg` -- typically
44 * supplied by the user via the command-line -- which may be a pathname or some
45 * shorthand uniquely identifying a worktree, thus making it convenient for the
46 * user to specify a worktree with minimal typing. For instance, if the last
47 * component (say, "foo") of a worktree's pathname is unique among worktrees
48 * (say, "work/foo" and "work/bar"), it can be used to identify the worktree
49 * unambiguously.
50 *
51 * `prefix` should be the `prefix` handed to top-level Git commands along with
52 * `argc` and `argv`.
53 *
54 * Return the worktree identified by `arg`, or NULL if not found.
55 */
56 struct worktree *find_worktree(struct worktree **list,
57 const char *prefix,
58 const char *arg);
59
60 /*
61 * Return the worktree corresponding to `path`, or NULL if no such worktree
62 * exists.
63 */
64 struct worktree *find_worktree_by_path(struct worktree **, const char *path);
65
66 /*
67 * Return true if the given worktree is the main one.
68 */
69 int is_main_worktree(const struct worktree *wt);
70
71 /*
72 * Return the reason string if the given worktree is locked or NULL
73 * otherwise.
74 */
75 const char *worktree_lock_reason(struct worktree *wt);
76
77 /*
78 * Return the reason string if the given worktree should be pruned, otherwise
79 * NULL if it should not be pruned. `expire` defines a grace period to prune
80 * the worktree when its path does not exist.
81 */
82 const char *worktree_prune_reason(struct worktree *wt, timestamp_t expire);
83
84 /*
85 * Return true if worktree entry should be pruned, along with the reason for
86 * pruning. Otherwise, return false and the worktree's path in `wtpath`, or
87 * NULL if it cannot be determined. Caller is responsible for freeing
88 * returned path.
89 *
90 * `expire` defines a grace period to prune the worktree when its path
91 * does not exist.
92 */
93 int should_prune_worktree(const char *id,
94 struct strbuf *reason,
95 char **wtpath,
96 timestamp_t expire);
97
98 #define WT_VALIDATE_WORKTREE_MISSING_OK (1 << 0)
99
100 /*
101 * Return zero if the worktree is in good condition. Error message is
102 * returned if "errmsg" is not NULL.
103 */
104 int validate_worktree(const struct worktree *wt,
105 struct strbuf *errmsg,
106 unsigned flags);
107
108 /*
109 * Update worktrees/xxx/gitdir with the new path.
110 */
111 void update_worktree_location(struct worktree *wt,
112 const char *path_);
113
114 typedef void (* worktree_repair_fn)(int iserr, const char *path,
115 const char *msg, void *cb_data);
116
117 /*
118 * Visit each registered linked worktree and repair corruptions. For each
119 * repair made or error encountered while attempting a repair, the callback
120 * function, if non-NULL, is called with the path of the worktree and a
121 * description of the repair or error, along with the callback user-data.
122 */
123 void repair_worktrees(worktree_repair_fn, void *cb_data);
124
125 /*
126 * Repair administrative files corresponding to the worktree at the given path.
127 * The worktree's .git file pointing at the repository must be intact for the
128 * repair to succeed. Useful for re-associating an orphaned worktree with the
129 * repository if the worktree has been moved manually (without using "git
130 * worktree move"). For each repair made or error encountered while attempting
131 * a repair, the callback function, if non-NULL, is called with the path of the
132 * worktree and a description of the repair or error, along with the callback
133 * user-data.
134 */
135 void repair_worktree_at_path(const char *, worktree_repair_fn, void *cb_data);
136
137 /*
138 * Free up the memory for worktree(s)
139 */
140 void free_worktrees(struct worktree **);
141
142 /*
143 * Check if a per-worktree symref points to a ref in the main worktree
144 * or any linked worktree, and return the worktree that holds the ref,
145 * or NULL otherwise.
146 */
147 const struct worktree *find_shared_symref(struct worktree **worktrees,
148 const char *symref,
149 const char *target);
150
151 /*
152 * Returns true if a symref points to a ref in a worktree.
153 */
154 int is_shared_symref(const struct worktree *wt,
155 const char *symref, const char *target);
156
157 /*
158 * Similar to head_ref() for all HEADs _except_ one from the current
159 * worktree, which is covered by head_ref().
160 */
161 int other_head_refs(each_ref_fn fn, void *cb_data);
162
163 int is_worktree_being_rebased(const struct worktree *wt, const char *target);
164 int is_worktree_being_bisected(const struct worktree *wt, const char *target);
165
166 /*
167 * Similar to git_path() but can produce paths for a specified
168 * worktree instead of current one
169 */
170 const char *worktree_git_path(const struct worktree *wt,
171 const char *fmt, ...)
172 __attribute__((format (printf, 2, 3)));
173
174 /*
175 * Return a refname suitable for access from the current ref store.
176 */
177 void strbuf_worktree_ref(const struct worktree *wt,
178 struct strbuf *sb,
179 const char *refname);
180
181 /**
182 * Enable worktree config for the first time. This will make the following
183 * adjustments:
184 *
185 * 1. Add extensions.worktreeConfig=true in the common config file.
186 *
187 * 2. If the common config file has a core.worktree value, then that value
188 * is moved to the main worktree's config.worktree file.
189 *
190 * 3. If the common config file has a core.bare enabled, then that value
191 * is moved to the main worktree's config.worktree file.
192 *
193 * If extensions.worktreeConfig is already true, then this method
194 * terminates early without any of the above steps. The existing config
195 * arrangement is assumed to be intentional.
196 *
197 * Returns 0 on success. Reports an error message and returns non-zero
198 * if any of these steps fail.
199 */
200 int init_worktree_config(struct repository *r);
201
202 #endif