| #ifndef SETUP_H |
| #define SETUP_H |
| |
| #include "refs.h" |
| #include "string-list.h" |
| |
| int is_inside_git_dir(void); |
| int is_inside_work_tree(void); |
| int get_common_dir_noenv(struct strbuf *sb, const char *gitdir); |
| int get_common_dir(struct strbuf *sb, const char *gitdir); |
| |
| /* |
| * Return true if the given path is a git directory; note that this _just_ |
| * looks at the directory itself. If you want to know whether "foo/.git" |
| * is a repository, you must feed that path, not just "foo". |
| */ |
| int is_git_directory(const char *path); |
| |
| /* |
| * Return 1 if the given path is the root of a git repository or |
| * submodule, else 0. Will not return 1 for bare repositories with the |
| * exception of creating a bare repository in "foo/.git" and calling |
| * is_git_repository("foo"). |
| * |
| * If we run into read errors, we err on the side of saying "yes, it is", |
| * as we usually consider sub-repos precious, and would prefer to err on the |
| * side of not disrupting or deleting them. |
| */ |
| int is_nonbare_repository_dir(struct strbuf *path); |
| |
| #define READ_GITFILE_ERR_STAT_FAILED 1 |
| #define READ_GITFILE_ERR_NOT_A_FILE 2 |
| #define READ_GITFILE_ERR_OPEN_FAILED 3 |
| #define READ_GITFILE_ERR_READ_FAILED 4 |
| #define READ_GITFILE_ERR_INVALID_FORMAT 5 |
| #define READ_GITFILE_ERR_NO_PATH 6 |
| #define READ_GITFILE_ERR_NOT_A_REPO 7 |
| #define READ_GITFILE_ERR_TOO_LARGE 8 |
| void read_gitfile_error_die(int error_code, const char *path, const char *dir); |
| const char *read_gitfile_gently(const char *path, int *return_error_code); |
| #define read_gitfile(path) read_gitfile_gently((path), NULL) |
| const char *resolve_gitdir_gently(const char *suspect, int *return_error_code); |
| #define resolve_gitdir(path) resolve_gitdir_gently((path), NULL) |
| |
| /* |
| * Check if a repository is safe and die if it is not, by verifying the |
| * ownership of the worktree (if any), the git directory, and the gitfile (if |
| * any). |
| * |
| * Exemptions for known-safe repositories can be added via `safe.directory` |
| * config settings; for non-bare repositories, their worktree needs to be |
| * added, for bare ones their git directory. |
| */ |
| void die_upon_dubious_ownership(const char *gitfile, const char *worktree, |
| const char *gitdir); |
| |
| void setup_work_tree(void); |
| |
| /* |
| * discover_git_directory_reason() is similar to discover_git_directory(), |
| * except it returns an enum value instead. It is important to note that |
| * a zero-valued return here is actually GIT_DIR_NONE, which is different |
| * from discover_git_directory. |
| */ |
| enum discovery_result { |
| GIT_DIR_EXPLICIT = 1, |
| GIT_DIR_DISCOVERED = 2, |
| GIT_DIR_BARE = 3, |
| /* these are errors */ |
| GIT_DIR_HIT_CEILING = -1, |
| GIT_DIR_HIT_MOUNT_POINT = -2, |
| GIT_DIR_INVALID_GITFILE = -3, |
| GIT_DIR_INVALID_OWNERSHIP = -4, |
| GIT_DIR_DISALLOWED_BARE = -5, |
| GIT_DIR_INVALID_FORMAT = -6, |
| GIT_DIR_CWD_FAILURE = -7, |
| }; |
| enum discovery_result discover_git_directory_reason(struct strbuf *commondir, |
| struct strbuf *gitdir); |
| |
| /* |
| * Find the commondir and gitdir of the repository that contains the current |
| * working directory, without changing the working directory or other global |
| * state. The result is appended to commondir and gitdir. If the discovered |
| * gitdir does not correspond to a worktree, then 'commondir' and 'gitdir' will |
| * both have the same result appended to the buffer. The return value is |
| * either 0 upon success and -1 if no repository was found. |
| */ |
| static inline int discover_git_directory(struct strbuf *commondir, |
| struct strbuf *gitdir) |
| { |
| if (discover_git_directory_reason(commondir, gitdir) <= 0) |
| return -1; |
| return 0; |
| } |
| |
| const char *setup_git_directory_gently(int *); |
| const char *setup_git_directory(void); |
| char *prefix_path(const char *prefix, int len, const char *path); |
| char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path); |
| |
| int check_filename(const char *prefix, const char *name); |
| void verify_filename(const char *prefix, |
| const char *name, |
| int diagnose_misspelt_rev); |
| void verify_non_filename(const char *prefix, const char *name); |
| int path_inside_repo(const char *prefix, const char *path); |
| |
| void sanitize_stdfds(void); |
| int daemonize(void); |
| |
| /* |
| * GIT_REPO_VERSION is the version we write by default. The |
| * _READ variant is the highest number we know how to |
| * handle. |
| */ |
| #define GIT_REPO_VERSION 0 |
| #define GIT_REPO_VERSION_READ 1 |
| |
| /* |
| * You _have_ to initialize a `struct repository_format` using |
| * `= REPOSITORY_FORMAT_INIT` before calling `read_repository_format()`. |
| */ |
| struct repository_format { |
| int version; |
| int precious_objects; |
| char *partial_clone; /* value of extensions.partialclone */ |
| int worktree_config; |
| int is_bare; |
| int hash_algo; |
| int compat_hash_algo; |
| enum ref_storage_format ref_storage_format; |
| int sparse_index; |
| char *work_tree; |
| struct string_list unknown_extensions; |
| struct string_list v1_only_extensions; |
| }; |
| |
| /* |
| * Always use this to initialize a `struct repository_format` |
| * to a well-defined, default state before calling |
| * `read_repository()`. |
| */ |
| #define REPOSITORY_FORMAT_INIT \ |
| { \ |
| .version = -1, \ |
| .is_bare = -1, \ |
| .hash_algo = GIT_HASH_SHA1, \ |
| .ref_storage_format = REF_STORAGE_FORMAT_FILES, \ |
| .unknown_extensions = STRING_LIST_INIT_DUP, \ |
| .v1_only_extensions = STRING_LIST_INIT_DUP, \ |
| } |
| |
| /* |
| * Read the repository format characteristics from the config file "path" into |
| * "format" struct. Returns the numeric version. On error, or if no version is |
| * found in the configuration, -1 is returned, format->version is set to -1, |
| * and all other fields in the struct are set to the default configuration |
| * (REPOSITORY_FORMAT_INIT). Always initialize the struct using |
| * REPOSITORY_FORMAT_INIT before calling this function. |
| */ |
| int read_repository_format(struct repository_format *format, const char *path); |
| |
| /* |
| * Free the memory held onto by `format`, but not the struct itself. |
| * (No need to use this after `read_repository_format()` fails.) |
| */ |
| void clear_repository_format(struct repository_format *format); |
| |
| /* |
| * Verify that the repository described by repository_format is something we |
| * can read. If it is, return 0. Otherwise, return -1, and "err" will describe |
| * any errors encountered. |
| */ |
| int verify_repository_format(const struct repository_format *format, |
| struct strbuf *err); |
| |
| /* |
| * Check the repository format version in the path found in get_git_dir(), |
| * and die if it is a version we don't understand. Generally one would |
| * set_git_dir() before calling this, and use it only for "are we in a valid |
| * repo?". |
| * |
| * If successful and fmt is not NULL, fill fmt with data. |
| */ |
| void check_repository_format(struct repository_format *fmt); |
| |
| const char *get_template_dir(const char *option_template); |
| |
| #define INIT_DB_QUIET (1 << 0) |
| #define INIT_DB_EXIST_OK (1 << 1) |
| #define INIT_DB_SKIP_REFDB (1 << 2) |
| |
| int init_db(const char *git_dir, const char *real_git_dir, |
| const char *template_dir, int hash_algo, |
| enum ref_storage_format ref_storage_format, |
| const char *initial_branch, int init_shared_repository, |
| unsigned int flags); |
| void initialize_repository_version(int hash_algo, |
| enum ref_storage_format ref_storage_format, |
| int reinit); |
| void create_reference_database(enum ref_storage_format ref_storage_format, |
| const char *initial_branch, int quiet); |
| |
| /* |
| * NOTE NOTE NOTE!! |
| * |
| * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must |
| * not be changed. Old repositories have core.sharedrepository written in |
| * numeric format, and therefore these values are preserved for compatibility |
| * reasons. |
| */ |
| enum sharedrepo { |
| PERM_UMASK = 0, |
| OLD_PERM_GROUP = 1, |
| OLD_PERM_EVERYBODY = 2, |
| PERM_GROUP = 0660, |
| PERM_EVERYBODY = 0664 |
| }; |
| int git_config_perm(const char *var, const char *value); |
| |
| struct startup_info { |
| int have_repository; |
| const char *prefix; |
| const char *original_cwd; |
| }; |
| extern struct startup_info *startup_info; |
| extern const char *tmp_original_cwd; |
| |
| #endif /* SETUP_H */ |