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Diffstat (limited to 'builtin.h')
| -rw-r--r-- | builtin.h | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/builtin.h b/builtin.h new file mode 100644 index 0000000..d560baa --- /dev/null +++ b/builtin.h @@ -0,0 +1,254 @@ +#ifndef BUILTIN_H +#define BUILTIN_H + +#include "git-compat-util.h" + +/* + * builtin API + * =========== + * + * Adding a new built-in + * --------------------- + * + * There are 4 things to do to add a built-in command implementation to + * Git: + * + * . Define the implementation of the built-in command `foo` with + * signature: + * + * int cmd_foo(int argc, const char **argv, const char *prefix); + * + * . Add the external declaration for the function to `builtin.h`. + * + * . Add the command to the `commands[]` table defined in `git.c`. + * The entry should look like: + * + * { "foo", cmd_foo, <options> }, + * + * where options is the bitwise-or of: + * + * `RUN_SETUP`: + * If there is not a Git directory to work on, abort. If there + * is a work tree, chdir to the top of it if the command was + * invoked in a subdirectory. If there is no work tree, no + * chdir() is done. + * + * `RUN_SETUP_GENTLY`: + * If there is a Git directory, chdir as per RUN_SETUP, otherwise, + * don't chdir anywhere. + * + * `USE_PAGER`: + * + * If the standard output is connected to a tty, spawn a pager and + * feed our output to it. + * + * `NEED_WORK_TREE`: + * + * Make sure there is a work tree, i.e. the command cannot act + * on bare repositories. + * This only makes sense when `RUN_SETUP` is also set. + * + * `DELAY_PAGER_CONFIG`: + * + * If RUN_SETUP or RUN_SETUP_GENTLY is set, git.c normally handles + * the `pager.<cmd>`-configuration. If this flag is used, git.c + * will skip that step, instead allowing the built-in to make a + * more informed decision, e.g., by ignoring `pager.<cmd>` for + * certain subcommands. + * + * . Add `builtin/foo.o` to `BUILTIN_OBJS` in `Makefile`. + * + * Additionally, if `foo` is a new command, there are 4 more things to do: + * + * . Add tests to `t/` directory. + * + * . Write documentation in `Documentation/git-foo.txt`. + * + * . Add an entry for `git-foo` to `command-list.txt`. + * + * . Add an entry for `/git-foo` to `.gitignore`. + * + * + * How a built-in is called + * ------------------------ + * + * The implementation `cmd_foo()` takes three parameters, `argc`, `argv, + * and `prefix`. The first two are similar to what `main()` of a + * standalone command would be called with. + * + * When `RUN_SETUP` is specified in the `commands[]` table, and when you + * were started from a subdirectory of the work tree, `cmd_foo()` is called + * after chdir(2) to the top of the work tree, and `prefix` gets the path + * to the subdirectory the command started from. This allows you to + * convert a user-supplied pathname (typically relative to that directory) + * to a pathname relative to the top of the work tree. + * + * The return value from `cmd_foo()` becomes the exit status of the + * command. + */ + +extern const char git_usage_string[]; +extern const char git_more_info_string[]; + +/** + * If a built-in has DELAY_PAGER_CONFIG set, the built-in should call this early + * when it wishes to respect the `pager.foo`-config. The `cmd` is the name of + * the built-in, e.g., "foo". If a paging-choice has already been setup, this + * does nothing. The default in `def` should be 0 for "pager off", 1 for "pager + * on" or -1 for "punt". + * + * You should most likely use a default of 0 or 1. "Punt" (-1) could be useful + * to be able to fall back to some historical compatibility name. + */ +void setup_auto_pager(const char *cmd, int def); + +int is_builtin(const char *s); + +/* + * Builtins which do not use RUN_SETUP should never see + * a prefix that is not empty; use this to protect downstream + * code which is not prepared to call prefix_filename(), etc. + */ +#define BUG_ON_NON_EMPTY_PREFIX(prefix) do { \ + if ((prefix)) \ + BUG("unexpected prefix in builtin: %s", (prefix)); \ +} while (0) + +int cmd_add(int argc, const char **argv, const char *prefix); +int cmd_am(int argc, const char **argv, const char *prefix); +int cmd_annotate(int argc, const char **argv, const char *prefix); +int cmd_apply(int argc, const char **argv, const char *prefix); +int cmd_archive(int argc, const char **argv, const char *prefix); +int cmd_bisect(int argc, const char **argv, const char *prefix); +int cmd_blame(int argc, const char **argv, const char *prefix); +int cmd_branch(int argc, const char **argv, const char *prefix); +int cmd_bugreport(int argc, const char **argv, const char *prefix); +int cmd_bundle(int argc, const char **argv, const char *prefix); +int cmd_cat_file(int argc, const char **argv, const char *prefix); +int cmd_checkout(int argc, const char **argv, const char *prefix); +int cmd_checkout__worker(int argc, const char **argv, const char *prefix); +int cmd_checkout_index(int argc, const char **argv, const char *prefix); +int cmd_check_attr(int argc, const char **argv, const char *prefix); +int cmd_check_ignore(int argc, const char **argv, const char *prefix); +int cmd_check_mailmap(int argc, const char **argv, const char *prefix); +int cmd_check_ref_format(int argc, const char **argv, const char *prefix); +int cmd_cherry(int argc, const char **argv, const char *prefix); +int cmd_cherry_pick(int argc, const char **argv, const char *prefix); +int cmd_clone(int argc, const char **argv, const char *prefix); +int cmd_clean(int argc, const char **argv, const char *prefix); +int cmd_column(int argc, const char **argv, const char *prefix); +int cmd_commit(int argc, const char **argv, const char *prefix); +int cmd_commit_graph(int argc, const char **argv, const char *prefix); +int cmd_commit_tree(int argc, const char **argv, const char *prefix); +int cmd_config(int argc, const char **argv, const char *prefix); +int cmd_count_objects(int argc, const char **argv, const char *prefix); +int cmd_credential(int argc, const char **argv, const char *prefix); +int cmd_credential_cache(int argc, const char **argv, const char *prefix); +int cmd_credential_cache_daemon(int argc, const char **argv, const char *prefix); +int cmd_credential_store(int argc, const char **argv, const char *prefix); +int cmd_describe(int argc, const char **argv, const char *prefix); +int cmd_diagnose(int argc, const char **argv, const char *prefix); +int cmd_diff_files(int argc, const char **argv, const char *prefix); +int cmd_diff_index(int argc, const char **argv, const char *prefix); +int cmd_diff(int argc, const char **argv, const char *prefix); +int cmd_diff_tree(int argc, const char **argv, const char *prefix); +int cmd_difftool(int argc, const char **argv, const char *prefix); +int cmd_env__helper(int argc, const char **argv, const char *prefix); +int cmd_fast_export(int argc, const char **argv, const char *prefix); +int cmd_fast_import(int argc, const char **argv, const char *prefix); +int cmd_fetch(int argc, const char **argv, const char *prefix); +int cmd_fetch_pack(int argc, const char **argv, const char *prefix); +int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix); +int cmd_for_each_ref(int argc, const char **argv, const char *prefix); +int cmd_for_each_repo(int argc, const char **argv, const char *prefix); +int cmd_format_patch(int argc, const char **argv, const char *prefix); +int cmd_fsck(int argc, const char **argv, const char *prefix); +int cmd_fsmonitor__daemon(int argc, const char **argv, const char *prefix); +int cmd_gc(int argc, const char **argv, const char *prefix); +int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix); +int cmd_grep(int argc, const char **argv, const char *prefix); +int cmd_hash_object(int argc, const char **argv, const char *prefix); +int cmd_help(int argc, const char **argv, const char *prefix); +int cmd_hook(int argc, const char **argv, const char *prefix); +int cmd_index_pack(int argc, const char **argv, const char *prefix); +int cmd_init_db(int argc, const char **argv, const char *prefix); +int cmd_interpret_trailers(int argc, const char **argv, const char *prefix); +int cmd_log(int argc, const char **argv, const char *prefix); +int cmd_log_reflog(int argc, const char **argv, const char *prefix); +int cmd_ls_files(int argc, const char **argv, const char *prefix); +int cmd_ls_tree(int argc, const char **argv, const char *prefix); +int cmd_ls_remote(int argc, const char **argv, const char *prefix); +int cmd_mailinfo(int argc, const char **argv, const char *prefix); +int cmd_mailsplit(int argc, const char **argv, const char *prefix); +int cmd_maintenance(int argc, const char **argv, const char *prefix); +int cmd_merge(int argc, const char **argv, const char *prefix); +int cmd_merge_base(int argc, const char **argv, const char *prefix); +int cmd_merge_index(int argc, const char **argv, const char *prefix); +int cmd_merge_ours(int argc, const char **argv, const char *prefix); +int cmd_merge_file(int argc, const char **argv, const char *prefix); +int cmd_merge_recursive(int argc, const char **argv, const char *prefix); +int cmd_merge_tree(int argc, const char **argv, const char *prefix); +int cmd_mktag(int argc, const char **argv, const char *prefix); +int cmd_mktree(int argc, const char **argv, const char *prefix); +int cmd_multi_pack_index(int argc, const char **argv, const char *prefix); +int cmd_mv(int argc, const char **argv, const char *prefix); +int cmd_name_rev(int argc, const char **argv, const char *prefix); +int cmd_notes(int argc, const char **argv, const char *prefix); +int cmd_pack_objects(int argc, const char **argv, const char *prefix); +int cmd_pack_redundant(int argc, const char **argv, const char *prefix); +int cmd_patch_id(int argc, const char **argv, const char *prefix); +int cmd_prune(int argc, const char **argv, const char *prefix); +int cmd_prune_packed(int argc, const char **argv, const char *prefix); +int cmd_pull(int argc, const char **argv, const char *prefix); +int cmd_push(int argc, const char **argv, const char *prefix); +int cmd_range_diff(int argc, const char **argv, const char *prefix); +int cmd_read_tree(int argc, const char **argv, const char *prefix); +int cmd_rebase(int argc, const char **argv, const char *prefix); +int cmd_rebase__interactive(int argc, const char **argv, const char *prefix); +int cmd_receive_pack(int argc, const char **argv, const char *prefix); +int cmd_reflog(int argc, const char **argv, const char *prefix); +int cmd_remote(int argc, const char **argv, const char *prefix); +int cmd_remote_ext(int argc, const char **argv, const char *prefix); +int cmd_remote_fd(int argc, const char **argv, const char *prefix); +int cmd_repack(int argc, const char **argv, const char *prefix); +int cmd_rerere(int argc, const char **argv, const char *prefix); +int cmd_reset(int argc, const char **argv, const char *prefix); +int cmd_restore(int argc, const char **argv, const char *prefix); +int cmd_rev_list(int argc, const char **argv, const char *prefix); +int cmd_rev_parse(int argc, const char **argv, const char *prefix); +int cmd_revert(int argc, const char **argv, const char *prefix); +int cmd_rm(int argc, const char **argv, const char *prefix); +int cmd_send_pack(int argc, const char **argv, const char *prefix); +int cmd_shortlog(int argc, const char **argv, const char *prefix); +int cmd_show(int argc, const char **argv, const char *prefix); +int cmd_show_branch(int argc, const char **argv, const char *prefix); +int cmd_show_index(int argc, const char **argv, const char *prefix); +int cmd_sparse_checkout(int argc, const char **argv, const char *prefix); +int cmd_status(int argc, const char **argv, const char *prefix); +int cmd_stash(int argc, const char **argv, const char *prefix); +int cmd_stripspace(int argc, const char **argv, const char *prefix); +int cmd_submodule__helper(int argc, const char **argv, const char *prefix); +int cmd_switch(int argc, const char **argv, const char *prefix); +int cmd_symbolic_ref(int argc, const char **argv, const char *prefix); +int cmd_tag(int argc, const char **argv, const char *prefix); +int cmd_unpack_file(int argc, const char **argv, const char *prefix); +int cmd_unpack_objects(int argc, const char **argv, const char *prefix); +int cmd_update_index(int argc, const char **argv, const char *prefix); +int cmd_update_ref(int argc, const char **argv, const char *prefix); +int cmd_update_server_info(int argc, const char **argv, const char *prefix); +int cmd_upload_archive(int argc, const char **argv, const char *prefix); +int cmd_upload_archive_writer(int argc, const char **argv, const char *prefix); +int cmd_upload_pack(int argc, const char **argv, const char *prefix); +int cmd_var(int argc, const char **argv, const char *prefix); +int cmd_verify_commit(int argc, const char **argv, const char *prefix); +int cmd_verify_tag(int argc, const char **argv, const char *prefix); +int cmd_version(int argc, const char **argv, const char *prefix); +int cmd_whatchanged(int argc, const char **argv, const char *prefix); +int cmd_worktree(int argc, const char **argv, const char *prefix); +int cmd_write_tree(int argc, const char **argv, const char *prefix); +int cmd_verify_pack(int argc, const char **argv, const char *prefix); +int cmd_show_ref(int argc, const char **argv, const char *prefix); +int cmd_pack_refs(int argc, const char **argv, const char *prefix); +int cmd_replace(int argc, const char **argv, const char *prefix); + +#endif |