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1 | #ifndef BUILTIN_H | |
2 | #define BUILTIN_H | |
3 | ||
4 | #include "git-compat-util.h" | |
5 | #include "strbuf.h" | |
6 | #include "cache.h" | |
7 | #include "commit.h" | |
8 | ||
9 | /* | |
10 | * builtin API | |
11 | * =========== | |
12 | * | |
13 | * Adding a new built-in | |
14 | * --------------------- | |
15 | * | |
16 | * There are 4 things to do to add a built-in command implementation to | |
17 | * Git: | |
18 | * | |
19 | * . Define the implementation of the built-in command `foo` with | |
20 | * signature: | |
21 | * | |
22 | * int cmd_foo(int argc, const char **argv, const char *prefix); | |
23 | * | |
24 | * . Add the external declaration for the function to `builtin.h`. | |
25 | * | |
26 | * . Add the command to the `commands[]` table defined in `git.c`. | |
27 | * The entry should look like: | |
28 | * | |
29 | * { "foo", cmd_foo, <options> }, | |
30 | * | |
31 | * where options is the bitwise-or of: | |
32 | * | |
33 | * `RUN_SETUP`: | |
34 | * If there is not a Git directory to work on, abort. If there | |
35 | * is a work tree, chdir to the top of it if the command was | |
36 | * invoked in a subdirectory. If there is no work tree, no | |
37 | * chdir() is done. | |
38 | * | |
39 | * `RUN_SETUP_GENTLY`: | |
40 | * If there is a Git directory, chdir as per RUN_SETUP, otherwise, | |
41 | * don't chdir anywhere. | |
42 | * | |
43 | * `USE_PAGER`: | |
44 | * | |
45 | * If the standard output is connected to a tty, spawn a pager and | |
46 | * feed our output to it. | |
47 | * | |
48 | * `NEED_WORK_TREE`: | |
49 | * | |
50 | * Make sure there is a work tree, i.e. the command cannot act | |
51 | * on bare repositories. | |
52 | * This only makes sense when `RUN_SETUP` is also set. | |
53 | * | |
54 | * `SUPPORT_SUPER_PREFIX`: | |
55 | * | |
56 | * The built-in supports `--super-prefix`. | |
57 | * | |
58 | * `DELAY_PAGER_CONFIG`: | |
59 | * | |
60 | * If RUN_SETUP or RUN_SETUP_GENTLY is set, git.c normally handles | |
61 | * the `pager.<cmd>`-configuration. If this flag is used, git.c | |
62 | * will skip that step, instead allowing the built-in to make a | |
63 | * more informed decision, e.g., by ignoring `pager.<cmd>` for | |
64 | * certain subcommands. | |
65 | * | |
66 | * . Add `builtin/foo.o` to `BUILTIN_OBJS` in `Makefile`. | |
67 | * | |
68 | * Additionally, if `foo` is a new command, there are 4 more things to do: | |
69 | * | |
70 | * . Add tests to `t/` directory. | |
71 | * | |
72 | * . Write documentation in `Documentation/git-foo.txt`. | |
73 | * | |
74 | * . Add an entry for `git-foo` to `command-list.txt`. | |
75 | * | |
76 | * . Add an entry for `/git-foo` to `.gitignore`. | |
77 | * | |
78 | * | |
79 | * How a built-in is called | |
80 | * ------------------------ | |
81 | * | |
82 | * The implementation `cmd_foo()` takes three parameters, `argc`, `argv, | |
83 | * and `prefix`. The first two are similar to what `main()` of a | |
84 | * standalone command would be called with. | |
85 | * | |
86 | * When `RUN_SETUP` is specified in the `commands[]` table, and when you | |
87 | * were started from a subdirectory of the work tree, `cmd_foo()` is called | |
88 | * after chdir(2) to the top of the work tree, and `prefix` gets the path | |
89 | * to the subdirectory the command started from. This allows you to | |
90 | * convert a user-supplied pathname (typically relative to that directory) | |
91 | * to a pathname relative to the top of the work tree. | |
92 | * | |
93 | * The return value from `cmd_foo()` becomes the exit status of the | |
94 | * command. | |
95 | */ | |
96 | ||
97 | #define DEFAULT_MERGE_LOG_LEN 20 | |
98 | ||
99 | extern const char git_usage_string[]; | |
100 | extern const char git_more_info_string[]; | |
101 | ||
102 | #define PRUNE_PACKED_DRY_RUN 01 | |
103 | #define PRUNE_PACKED_VERBOSE 02 | |
104 | ||
105 | extern void prune_packed_objects(int); | |
106 | ||
107 | struct fmt_merge_msg_opts { | |
108 | unsigned add_title:1, | |
109 | credit_people:1; | |
110 | int shortlog_len; | |
111 | }; | |
112 | ||
113 | extern int fmt_merge_msg(struct strbuf *in, struct strbuf *out, | |
114 | struct fmt_merge_msg_opts *); | |
115 | ||
116 | /** | |
117 | * If a built-in has DELAY_PAGER_CONFIG set, the built-in should call this early | |
118 | * when it wishes to respect the `pager.foo`-config. The `cmd` is the name of | |
119 | * the built-in, e.g., "foo". If a paging-choice has already been setup, this | |
120 | * does nothing. The default in `def` should be 0 for "pager off", 1 for "pager | |
121 | * on" or -1 for "punt". | |
122 | * | |
123 | * You should most likely use a default of 0 or 1. "Punt" (-1) could be useful | |
124 | * to be able to fall back to some historical compatibility name. | |
125 | */ | |
126 | extern void setup_auto_pager(const char *cmd, int def); | |
127 | ||
128 | extern int is_builtin(const char *s); | |
129 | ||
130 | extern int cmd_add(int argc, const char **argv, const char *prefix); | |
131 | extern int cmd_am(int argc, const char **argv, const char *prefix); | |
132 | extern int cmd_annotate(int argc, const char **argv, const char *prefix); | |
133 | extern int cmd_apply(int argc, const char **argv, const char *prefix); | |
134 | extern int cmd_archive(int argc, const char **argv, const char *prefix); | |
135 | extern int cmd_bisect__helper(int argc, const char **argv, const char *prefix); | |
136 | extern int cmd_blame(int argc, const char **argv, const char *prefix); | |
137 | extern int cmd_branch(int argc, const char **argv, const char *prefix); | |
138 | extern int cmd_bundle(int argc, const char **argv, const char *prefix); | |
139 | extern int cmd_cat_file(int argc, const char **argv, const char *prefix); | |
140 | extern int cmd_checkout(int argc, const char **argv, const char *prefix); | |
141 | extern int cmd_checkout_index(int argc, const char **argv, const char *prefix); | |
142 | extern int cmd_check_attr(int argc, const char **argv, const char *prefix); | |
143 | extern int cmd_check_ignore(int argc, const char **argv, const char *prefix); | |
144 | extern int cmd_check_mailmap(int argc, const char **argv, const char *prefix); | |
145 | extern int cmd_check_ref_format(int argc, const char **argv, const char *prefix); | |
146 | extern int cmd_cherry(int argc, const char **argv, const char *prefix); | |
147 | extern int cmd_cherry_pick(int argc, const char **argv, const char *prefix); | |
148 | extern int cmd_clone(int argc, const char **argv, const char *prefix); | |
149 | extern int cmd_clean(int argc, const char **argv, const char *prefix); | |
150 | extern int cmd_column(int argc, const char **argv, const char *prefix); | |
151 | extern int cmd_commit(int argc, const char **argv, const char *prefix); | |
152 | extern int cmd_commit_graph(int argc, const char **argv, const char *prefix); | |
153 | extern int cmd_commit_tree(int argc, const char **argv, const char *prefix); | |
154 | extern int cmd_config(int argc, const char **argv, const char *prefix); | |
155 | extern int cmd_count_objects(int argc, const char **argv, const char *prefix); | |
156 | extern int cmd_credential(int argc, const char **argv, const char *prefix); | |
157 | extern int cmd_describe(int argc, const char **argv, const char *prefix); | |
158 | extern int cmd_diff_files(int argc, const char **argv, const char *prefix); | |
159 | extern int cmd_diff_index(int argc, const char **argv, const char *prefix); | |
160 | extern int cmd_diff(int argc, const char **argv, const char *prefix); | |
161 | extern int cmd_diff_tree(int argc, const char **argv, const char *prefix); | |
162 | extern int cmd_difftool(int argc, const char **argv, const char *prefix); | |
163 | extern int cmd_fast_export(int argc, const char **argv, const char *prefix); | |
164 | extern int cmd_fetch(int argc, const char **argv, const char *prefix); | |
165 | extern int cmd_fetch_pack(int argc, const char **argv, const char *prefix); | |
166 | extern int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix); | |
167 | extern int cmd_for_each_ref(int argc, const char **argv, const char *prefix); | |
168 | extern int cmd_format_patch(int argc, const char **argv, const char *prefix); | |
169 | extern int cmd_fsck(int argc, const char **argv, const char *prefix); | |
170 | extern int cmd_gc(int argc, const char **argv, const char *prefix); | |
171 | extern int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix); | |
172 | extern int cmd_grep(int argc, const char **argv, const char *prefix); | |
173 | extern int cmd_hash_object(int argc, const char **argv, const char *prefix); | |
174 | extern int cmd_help(int argc, const char **argv, const char *prefix); | |
175 | extern int cmd_index_pack(int argc, const char **argv, const char *prefix); | |
176 | extern int cmd_init_db(int argc, const char **argv, const char *prefix); | |
177 | extern int cmd_interpret_trailers(int argc, const char **argv, const char *prefix); | |
178 | extern int cmd_log(int argc, const char **argv, const char *prefix); | |
179 | extern int cmd_log_reflog(int argc, const char **argv, const char *prefix); | |
180 | extern int cmd_ls_files(int argc, const char **argv, const char *prefix); | |
181 | extern int cmd_ls_tree(int argc, const char **argv, const char *prefix); | |
182 | extern int cmd_ls_remote(int argc, const char **argv, const char *prefix); | |
183 | extern int cmd_mailinfo(int argc, const char **argv, const char *prefix); | |
184 | extern int cmd_mailsplit(int argc, const char **argv, const char *prefix); | |
185 | extern int cmd_merge(int argc, const char **argv, const char *prefix); | |
186 | extern int cmd_merge_base(int argc, const char **argv, const char *prefix); | |
187 | extern int cmd_merge_index(int argc, const char **argv, const char *prefix); | |
188 | extern int cmd_merge_ours(int argc, const char **argv, const char *prefix); | |
189 | extern int cmd_merge_file(int argc, const char **argv, const char *prefix); | |
190 | extern int cmd_merge_recursive(int argc, const char **argv, const char *prefix); | |
191 | extern int cmd_merge_tree(int argc, const char **argv, const char *prefix); | |
192 | extern int cmd_mktag(int argc, const char **argv, const char *prefix); | |
193 | extern int cmd_mktree(int argc, const char **argv, const char *prefix); | |
194 | extern int cmd_mv(int argc, const char **argv, const char *prefix); | |
195 | extern int cmd_name_rev(int argc, const char **argv, const char *prefix); | |
196 | extern int cmd_notes(int argc, const char **argv, const char *prefix); | |
197 | extern int cmd_pack_objects(int argc, const char **argv, const char *prefix); | |
198 | extern int cmd_pack_redundant(int argc, const char **argv, const char *prefix); | |
199 | extern int cmd_patch_id(int argc, const char **argv, const char *prefix); | |
200 | extern int cmd_prune(int argc, const char **argv, const char *prefix); | |
201 | extern int cmd_prune_packed(int argc, const char **argv, const char *prefix); | |
202 | extern int cmd_pull(int argc, const char **argv, const char *prefix); | |
203 | extern int cmd_push(int argc, const char **argv, const char *prefix); | |
204 | extern int cmd_read_tree(int argc, const char **argv, const char *prefix); | |
205 | extern int cmd_rebase__helper(int argc, const char **argv, const char *prefix); | |
206 | extern int cmd_receive_pack(int argc, const char **argv, const char *prefix); | |
207 | extern int cmd_reflog(int argc, const char **argv, const char *prefix); | |
208 | extern int cmd_remote(int argc, const char **argv, const char *prefix); | |
209 | extern int cmd_remote_ext(int argc, const char **argv, const char *prefix); | |
210 | extern int cmd_remote_fd(int argc, const char **argv, const char *prefix); | |
211 | extern int cmd_repack(int argc, const char **argv, const char *prefix); | |
212 | extern int cmd_rerere(int argc, const char **argv, const char *prefix); | |
213 | extern int cmd_reset(int argc, const char **argv, const char *prefix); | |
214 | extern int cmd_rev_list(int argc, const char **argv, const char *prefix); | |
215 | extern int cmd_rev_parse(int argc, const char **argv, const char *prefix); | |
216 | extern int cmd_revert(int argc, const char **argv, const char *prefix); | |
217 | extern int cmd_rm(int argc, const char **argv, const char *prefix); | |
218 | extern int cmd_send_pack(int argc, const char **argv, const char *prefix); | |
219 | extern int cmd_serve(int argc, const char **argv, const char *prefix); | |
220 | extern int cmd_shortlog(int argc, const char **argv, const char *prefix); | |
221 | extern int cmd_show(int argc, const char **argv, const char *prefix); | |
222 | extern int cmd_show_branch(int argc, const char **argv, const char *prefix); | |
223 | extern int cmd_show_index(int argc, const char **argv, const char *prefix); | |
224 | extern int cmd_status(int argc, const char **argv, const char *prefix); | |
225 | extern int cmd_stripspace(int argc, const char **argv, const char *prefix); | |
226 | extern int cmd_submodule__helper(int argc, const char **argv, const char *prefix); | |
227 | extern int cmd_symbolic_ref(int argc, const char **argv, const char *prefix); | |
228 | extern int cmd_tag(int argc, const char **argv, const char *prefix); | |
229 | extern int cmd_tar_tree(int argc, const char **argv, const char *prefix); | |
230 | extern int cmd_unpack_file(int argc, const char **argv, const char *prefix); | |
231 | extern int cmd_unpack_objects(int argc, const char **argv, const char *prefix); | |
232 | extern int cmd_update_index(int argc, const char **argv, const char *prefix); | |
233 | extern int cmd_update_ref(int argc, const char **argv, const char *prefix); | |
234 | extern int cmd_update_server_info(int argc, const char **argv, const char *prefix); | |
235 | extern int cmd_upload_archive(int argc, const char **argv, const char *prefix); | |
236 | extern int cmd_upload_archive_writer(int argc, const char **argv, const char *prefix); | |
237 | extern int cmd_upload_pack(int argc, const char **argv, const char *prefix); | |
238 | extern int cmd_var(int argc, const char **argv, const char *prefix); | |
239 | extern int cmd_verify_commit(int argc, const char **argv, const char *prefix); | |
240 | extern int cmd_verify_tag(int argc, const char **argv, const char *prefix); | |
241 | extern int cmd_version(int argc, const char **argv, const char *prefix); | |
242 | extern int cmd_whatchanged(int argc, const char **argv, const char *prefix); | |
243 | extern int cmd_worktree(int argc, const char **argv, const char *prefix); | |
244 | extern int cmd_write_tree(int argc, const char **argv, const char *prefix); | |
245 | extern int cmd_verify_pack(int argc, const char **argv, const char *prefix); | |
246 | extern int cmd_show_ref(int argc, const char **argv, const char *prefix); | |
247 | extern int cmd_pack_refs(int argc, const char **argv, const char *prefix); | |
248 | extern int cmd_replace(int argc, const char **argv, const char *prefix); | |
249 | ||
250 | #endif |