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e38da487 EN |
1 | #ifndef SETUP_H |
2 | #define SETUP_H | |
3 | ||
4 | #include "string-list.h" | |
5 | ||
6 | int is_inside_git_dir(void); | |
7 | int is_inside_work_tree(void); | |
8 | int get_common_dir_noenv(struct strbuf *sb, const char *gitdir); | |
9 | int get_common_dir(struct strbuf *sb, const char *gitdir); | |
10 | ||
11 | /* | |
12 | * Return true if the given path is a git directory; note that this _just_ | |
13 | * looks at the directory itself. If you want to know whether "foo/.git" | |
14 | * is a repository, you must feed that path, not just "foo". | |
15 | */ | |
16 | int is_git_directory(const char *path); | |
17 | ||
18 | /* | |
19 | * Return 1 if the given path is the root of a git repository or | |
20 | * submodule, else 0. Will not return 1 for bare repositories with the | |
21 | * exception of creating a bare repository in "foo/.git" and calling | |
22 | * is_git_repository("foo"). | |
23 | * | |
24 | * If we run into read errors, we err on the side of saying "yes, it is", | |
25 | * as we usually consider sub-repos precious, and would prefer to err on the | |
26 | * side of not disrupting or deleting them. | |
27 | */ | |
28 | int is_nonbare_repository_dir(struct strbuf *path); | |
29 | ||
30 | #define READ_GITFILE_ERR_STAT_FAILED 1 | |
31 | #define READ_GITFILE_ERR_NOT_A_FILE 2 | |
32 | #define READ_GITFILE_ERR_OPEN_FAILED 3 | |
33 | #define READ_GITFILE_ERR_READ_FAILED 4 | |
34 | #define READ_GITFILE_ERR_INVALID_FORMAT 5 | |
35 | #define READ_GITFILE_ERR_NO_PATH 6 | |
36 | #define READ_GITFILE_ERR_NOT_A_REPO 7 | |
37 | #define READ_GITFILE_ERR_TOO_LARGE 8 | |
38 | void read_gitfile_error_die(int error_code, const char *path, const char *dir); | |
39 | const char *read_gitfile_gently(const char *path, int *return_error_code); | |
40 | #define read_gitfile(path) read_gitfile_gently((path), NULL) | |
41 | const char *resolve_gitdir_gently(const char *suspect, int *return_error_code); | |
42 | #define resolve_gitdir(path) resolve_gitdir_gently((path), NULL) | |
43 | ||
44 | void setup_work_tree(void); | |
26ae8da6 DS |
45 | |
46 | /* | |
47 | * discover_git_directory_reason() is similar to discover_git_directory(), | |
48 | * except it returns an enum value instead. It is important to note that | |
49 | * a zero-valued return here is actually GIT_DIR_NONE, which is different | |
50 | * from discover_git_directory. | |
51 | */ | |
52 | enum discovery_result { | |
53 | GIT_DIR_EXPLICIT = 1, | |
54 | GIT_DIR_DISCOVERED = 2, | |
55 | GIT_DIR_BARE = 3, | |
56 | /* these are errors */ | |
57 | GIT_DIR_HIT_CEILING = -1, | |
58 | GIT_DIR_HIT_MOUNT_POINT = -2, | |
59 | GIT_DIR_INVALID_GITFILE = -3, | |
60 | GIT_DIR_INVALID_OWNERSHIP = -4, | |
61 | GIT_DIR_DISALLOWED_BARE = -5, | |
62 | GIT_DIR_INVALID_FORMAT = -6, | |
63 | GIT_DIR_CWD_FAILURE = -7, | |
64 | }; | |
65 | enum discovery_result discover_git_directory_reason(struct strbuf *commondir, | |
66 | struct strbuf *gitdir); | |
67 | ||
e38da487 EN |
68 | /* |
69 | * Find the commondir and gitdir of the repository that contains the current | |
70 | * working directory, without changing the working directory or other global | |
71 | * state. The result is appended to commondir and gitdir. If the discovered | |
72 | * gitdir does not correspond to a worktree, then 'commondir' and 'gitdir' will | |
73 | * both have the same result appended to the buffer. The return value is | |
26ae8da6 | 74 | * either 0 upon success and -1 if no repository was found. |
e38da487 | 75 | */ |
26ae8da6 DS |
76 | static inline int discover_git_directory(struct strbuf *commondir, |
77 | struct strbuf *gitdir) | |
78 | { | |
79 | if (discover_git_directory_reason(commondir, gitdir) <= 0) | |
80 | return -1; | |
81 | return 0; | |
82 | } | |
83 | ||
e38da487 EN |
84 | const char *setup_git_directory_gently(int *); |
85 | const char *setup_git_directory(void); | |
86 | char *prefix_path(const char *prefix, int len, const char *path); | |
87 | char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path); | |
88 | ||
89 | int check_filename(const char *prefix, const char *name); | |
90 | void verify_filename(const char *prefix, | |
91 | const char *name, | |
92 | int diagnose_misspelt_rev); | |
93 | void verify_non_filename(const char *prefix, const char *name); | |
94 | int path_inside_repo(const char *prefix, const char *path); | |
95 | ||
96 | void sanitize_stdfds(void); | |
97 | int daemonize(void); | |
98 | ||
99 | /* | |
100 | * GIT_REPO_VERSION is the version we write by default. The | |
101 | * _READ variant is the highest number we know how to | |
102 | * handle. | |
103 | */ | |
104 | #define GIT_REPO_VERSION 0 | |
105 | #define GIT_REPO_VERSION_READ 1 | |
106 | ||
107 | /* | |
108 | * You _have_ to initialize a `struct repository_format` using | |
109 | * `= REPOSITORY_FORMAT_INIT` before calling `read_repository_format()`. | |
110 | */ | |
111 | struct repository_format { | |
112 | int version; | |
113 | int precious_objects; | |
114 | char *partial_clone; /* value of extensions.partialclone */ | |
115 | int worktree_config; | |
116 | int is_bare; | |
117 | int hash_algo; | |
173761e2 | 118 | unsigned int ref_storage_format; |
e38da487 EN |
119 | int sparse_index; |
120 | char *work_tree; | |
121 | struct string_list unknown_extensions; | |
122 | struct string_list v1_only_extensions; | |
123 | }; | |
124 | ||
125 | /* | |
126 | * Always use this to initialize a `struct repository_format` | |
127 | * to a well-defined, default state before calling | |
128 | * `read_repository()`. | |
129 | */ | |
130 | #define REPOSITORY_FORMAT_INIT \ | |
131 | { \ | |
132 | .version = -1, \ | |
133 | .is_bare = -1, \ | |
134 | .hash_algo = GIT_HASH_SHA1, \ | |
173761e2 | 135 | .ref_storage_format = REF_STORAGE_FORMAT_FILES, \ |
e38da487 EN |
136 | .unknown_extensions = STRING_LIST_INIT_DUP, \ |
137 | .v1_only_extensions = STRING_LIST_INIT_DUP, \ | |
138 | } | |
139 | ||
140 | /* | |
141 | * Read the repository format characteristics from the config file "path" into | |
142 | * "format" struct. Returns the numeric version. On error, or if no version is | |
143 | * found in the configuration, -1 is returned, format->version is set to -1, | |
144 | * and all other fields in the struct are set to the default configuration | |
145 | * (REPOSITORY_FORMAT_INIT). Always initialize the struct using | |
146 | * REPOSITORY_FORMAT_INIT before calling this function. | |
147 | */ | |
148 | int read_repository_format(struct repository_format *format, const char *path); | |
149 | ||
150 | /* | |
151 | * Free the memory held onto by `format`, but not the struct itself. | |
152 | * (No need to use this after `read_repository_format()` fails.) | |
153 | */ | |
154 | void clear_repository_format(struct repository_format *format); | |
155 | ||
156 | /* | |
157 | * Verify that the repository described by repository_format is something we | |
158 | * can read. If it is, return 0. Otherwise, return -1, and "err" will describe | |
159 | * any errors encountered. | |
160 | */ | |
161 | int verify_repository_format(const struct repository_format *format, | |
162 | struct strbuf *err); | |
163 | ||
164 | /* | |
165 | * Check the repository format version in the path found in get_git_dir(), | |
166 | * and die if it is a version we don't understand. Generally one would | |
167 | * set_git_dir() before calling this, and use it only for "are we in a valid | |
168 | * repo?". | |
169 | * | |
170 | * If successful and fmt is not NULL, fill fmt with data. | |
171 | */ | |
172 | void check_repository_format(struct repository_format *fmt); | |
173 | ||
56cd0334 PS |
174 | #define INIT_DB_QUIET (1 << 0) |
175 | #define INIT_DB_EXIST_OK (1 << 1) | |
176 | #define INIT_DB_SKIP_REFDB (1 << 2) | |
e8cf8ef5 EN |
177 | |
178 | int init_db(const char *git_dir, const char *real_git_dir, | |
179 | const char *template_dir, int hash_algo, | |
173761e2 | 180 | unsigned int ref_storage_format, |
e8cf8ef5 EN |
181 | const char *initial_branch, int init_shared_repository, |
182 | unsigned int flags); | |
d7497a42 PS |
183 | void initialize_repository_version(int hash_algo, |
184 | unsigned int ref_storage_format, | |
185 | int reinit); | |
173761e2 PS |
186 | void create_reference_database(unsigned int ref_storage_format, |
187 | const char *initial_branch, int quiet); | |
e8cf8ef5 | 188 | |
e38da487 EN |
189 | /* |
190 | * NOTE NOTE NOTE!! | |
191 | * | |
192 | * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must | |
193 | * not be changed. Old repositories have core.sharedrepository written in | |
194 | * numeric format, and therefore these values are preserved for compatibility | |
195 | * reasons. | |
196 | */ | |
197 | enum sharedrepo { | |
198 | PERM_UMASK = 0, | |
199 | OLD_PERM_GROUP = 1, | |
200 | OLD_PERM_EVERYBODY = 2, | |
201 | PERM_GROUP = 0660, | |
202 | PERM_EVERYBODY = 0664 | |
203 | }; | |
204 | int git_config_perm(const char *var, const char *value); | |
205 | ||
206 | struct startup_info { | |
207 | int have_repository; | |
208 | const char *prefix; | |
209 | const char *original_cwd; | |
210 | }; | |
211 | extern struct startup_info *startup_info; | |
212 | extern const char *tmp_original_cwd; | |
213 | ||
214 | #endif /* SETUP_H */ |