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builtin.h
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builtin.h
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#ifndef BUILTIN_H
#define BUILTIN_H
/*
* TODO: Almost all of our builtins access `the_repository` by necessity
* because they do not get passed a pointer to it. We should adapt the function
* signature of those main functions to accept a `struct repository *` and then
* remove the macro here.
*/
#define USE_THE_REPOSITORY_VARIABLE
#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_refs(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_replay(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