diff options
Diffstat (limited to 'cache.h')
| -rw-r--r-- | cache.h | 157 |
1 files changed, 139 insertions, 18 deletions
@@ -9,6 +9,7 @@ #include "convert.h" #include "trace.h" #include "string-list.h" +#include "pack-revindex.h" #include SHA1_HEADER #ifndef platform_SHA_CTX @@ -214,7 +215,7 @@ struct cache_entry { #define CE_INTENT_TO_ADD (1 << 29) #define CE_SKIP_WORKTREE (1 << 30) /* CE_EXTENDED2 is for future extension */ -#define CE_EXTENDED2 (1 << 31) +#define CE_EXTENDED2 (1U << 31) #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE) @@ -228,7 +229,9 @@ struct cache_entry { #error "CE_EXTENDED_FLAGS out of range" #endif +/* Forward structure decls */ struct pathspec; +struct child_process; /* * Copy the sha1 and stat state of a cache entry from one to @@ -259,6 +262,7 @@ static inline unsigned create_ce_flags(unsigned stage) #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE) #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE) #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE) +#define ce_intent_to_add(ce) ((ce)->ce_flags & CE_INTENT_TO_ADD) #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644) static inline unsigned int create_ce_mode(unsigned int mode) @@ -456,7 +460,6 @@ extern char *git_work_tree_cfg; extern int is_inside_work_tree(void); extern const char *get_git_dir(void); extern const char *get_git_common_dir(void); -extern int is_git_directory(const char *path); extern char *get_object_directory(void); extern char *get_index_file(void); extern char *get_graft_file(void); @@ -467,6 +470,25 @@ extern const char *get_git_namespace(void); extern const char *strip_namespace(const char *namespaced_ref); extern const char *get_git_work_tree(void); +/* + * 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". + */ +extern 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. + */ +extern 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 @@ -629,7 +651,6 @@ extern int prefer_symlink_refs; extern int log_all_ref_updates; extern int warn_ambiguous_refs; extern int warn_on_object_refname_ambiguity; -extern int shared_repository; extern const char *apply_default_whitespace; extern const char *apply_default_ignorewhitespace; extern const char *git_attributes_file; @@ -642,6 +663,9 @@ extern size_t delta_base_cache_limit; extern unsigned long big_file_threshold; extern unsigned long pack_size_limit_cfg; +void set_shared_repository(int value); +int get_shared_repository(void); + /* * Do replace refs need to be checked this run? This variable is * initialized to true unless --no-replace-object is used or @@ -723,9 +747,39 @@ extern int grafts_replace_parents; */ #define GIT_REPO_VERSION 0 #define GIT_REPO_VERSION_READ 1 -extern int repository_format_version; extern int repository_format_precious_objects; -extern int check_repository_format(void); + +struct repository_format { + int version; + int precious_objects; + int is_bare; + char *work_tree; + struct string_list unknown_extensions; +}; + +/* + * Read the repository format characteristics from the config file "path" into + * "format" struct. Returns the numeric version. On error, -1 is returned, + * format->version is set to -1, and all other fields in the struct are + * undefined. + */ +int read_repository_format(struct repository_format *format, const char *path); + +/* + * 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?". + */ +extern void check_repository_format(void); #define MTIME_CHANGED 0x0001 #define CTIME_CHANGED 0x0002 @@ -750,6 +804,8 @@ extern char *mksnpath(char *buf, size_t n, const char *fmt, ...) __attribute__((format (printf, 3, 4))); extern void strbuf_git_path(struct strbuf *sb, const char *fmt, ...) __attribute__((format (printf, 2, 3))); +extern char *git_path_buf(struct strbuf *buf, const char *fmt, ...) + __attribute__((format (printf, 2, 3))); extern void strbuf_git_path_submodule(struct strbuf *sb, const char *path, const char *fmt, ...) __attribute__((format (printf, 3, 4))); @@ -810,8 +866,26 @@ extern char *sha1_pack_name(const unsigned char *sha1); */ extern char *sha1_pack_index_name(const unsigned char *sha1); -extern const char *find_unique_abbrev(const unsigned char *sha1, int); +/* + * Return an abbreviated sha1 unique within this repository's object database. + * The result will be at least `len` characters long, and will be NUL + * terminated. + * + * The non-`_r` version returns a static buffer which will be overwritten by + * subsequent calls. + * + * The `_r` variant writes to a buffer supplied by the caller, which must be at + * least `GIT_SHA1_HEXSZ + 1` bytes. The return value is the number of bytes + * written (excluding the NUL terminator). + * + * Note that while this version avoids the static buffer, it is not fully + * reentrant, as it calls into other non-reentrant git code. + */ +extern const char *find_unique_abbrev(const unsigned char *sha1, int len); +extern int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len); + extern const unsigned char null_sha1[GIT_SHA1_RAWSZ]; +extern const struct object_id null_oid; static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) { @@ -1029,6 +1103,9 @@ static inline int has_sha1_file(const unsigned char *sha1) return has_sha1_file_with_flags(sha1, 0); } +/* Same as the above, except for struct object_id. */ +extern int has_object_file(const struct object_id *oid); + /* * Return true iff an alternate object database has a loose object * with the specified name. This function does not respect replace @@ -1092,6 +1169,18 @@ extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *); extern int get_sha1_hex(const char *hex, unsigned char *sha1); extern int get_oid_hex(const char *hex, struct object_id *sha1); +/* + * Convert a binary sha1 to its hex equivalent. The `_r` variant is reentrant, + * and writes the NUL-terminated output to the buffer `out`, which must be at + * least `GIT_SHA1_HEXSZ + 1` bytes, and returns a pointer to out for + * convenience. + * + * The non-`_r` variant returns a static buffer, but uses a ring of 4 + * buffers, making it safe to make multiple calls for a single statement, like: + * + * printf("%s -> %s", sha1_to_hex(one), sha1_to_hex(two)); + */ +extern char *sha1_to_hex_r(char *out, const unsigned char *sha1); extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ extern char *oid_to_hex(const struct object_id *oid); /* same static buffer as sha1_to_hex */ @@ -1118,7 +1207,6 @@ struct date_mode { DATE_NORMAL = 0, DATE_RELATIVE, DATE_SHORT, - DATE_LOCAL, DATE_ISO8601, DATE_ISO8601_STRICT, DATE_RFC2822, @@ -1126,6 +1214,7 @@ struct date_mode { DATE_RAW } type; const char *strftime_fmt; + int local; }; /* @@ -1264,6 +1353,7 @@ extern struct packed_git { freshened:1, do_not_close:1; unsigned char sha1[20]; + struct revindex_entry *revindex; /* something like ".git/objects/pack/xxxxx.pack" */ char pack_name[FLEX_ARRAY]; /* more */ } *packed_git; @@ -1309,7 +1399,17 @@ extern void close_all_packs(void); extern void unuse_pack(struct pack_window **); extern void free_pack_by_name(const char *); extern void clear_delta_base_cache(void); -extern struct packed_git *add_packed_git(const char *, int, int); +extern struct packed_git *add_packed_git(const char *path, size_t path_len, int local); + +/* + * Make sure that a pointer access into an mmap'd index file is within bounds, + * and can provide at least 8 bytes of data. + * + * Note that this is only necessary for variable-length segments of the file + * (like the 64-bit extended offset table), as we compare the size to the + * fixed-length parts when we open the file. + */ +extern void check_pack_index_ptr(const struct packed_git *p, const void *ptr); /* * Return the SHA-1 of the nth object within the specified packfile. @@ -1431,7 +1531,7 @@ extern int update_server_info(int); /* git_config_parse_key() returns these negated: */ #define CONFIG_INVALID_KEY 1 #define CONFIG_NO_SECTION_OR_NAME 2 -/* git_config_set(), git_config_set_multivar() return the above or these: */ +/* git_config_set_gently(), git_config_set_multivar_gently() return the above or these: */ #define CONFIG_NO_LOCK -1 #define CONFIG_INVALID_FILE 3 #define CONFIG_NO_WRITE 4 @@ -1450,15 +1550,14 @@ struct git_config_source { typedef int (*config_fn_t)(const char *, const char *, void *); extern int git_default_config(const char *, const char *, void *); extern int git_config_from_file(config_fn_t fn, const char *, void *); -extern int git_config_from_buf(config_fn_t fn, const char *name, - const char *buf, size_t len, void *data); +extern int git_config_from_mem(config_fn_t fn, const char *origin_type, + const char *name, const char *buf, size_t len, void *data); extern void git_config_push_parameter(const char *text); extern int git_config_from_parameters(config_fn_t fn, void *data); extern void git_config(config_fn_t fn, void *); extern int git_config_with_options(config_fn_t fn, void *, struct git_config_source *config_source, int respect_includes); -extern int git_config_early(config_fn_t fn, void *, const char *repo_config); extern int git_parse_ulong(const char *, unsigned long *); extern int git_parse_maybe_bool(const char *); extern int git_config_int(const char *, const char *); @@ -1469,16 +1568,19 @@ extern int git_config_bool(const char *, const char *); extern int git_config_maybe_bool(const char *, const char *); extern int git_config_string(const char **, const char *, const char *); extern int git_config_pathname(const char **, const char *, const char *); -extern int git_config_set_in_file(const char *, const char *, const char *); -extern int git_config_set(const char *, const char *); +extern int git_config_set_in_file_gently(const char *, const char *, const char *); +extern void git_config_set_in_file(const char *, const char *, const char *); +extern int git_config_set_gently(const char *, const char *); +extern void git_config_set(const char *, const char *); extern int git_config_parse_key(const char *, char **, int *); extern int git_config_key_is_valid(const char *key); -extern int git_config_set_multivar(const char *, const char *, const char *, int); -extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int); +extern int git_config_set_multivar_gently(const char *, const char *, const char *, int); +extern void git_config_set_multivar(const char *, const char *, const char *, int); +extern int git_config_set_multivar_in_file_gently(const char *, const char *, const char *, const char *, int); +extern void git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int); extern int git_config_rename_section(const char *, const char *); extern int git_config_rename_section_in_file(const char *, const char *, const char *); extern const char *git_etc_gitconfig(void); -extern int check_repository_format_version(const char *var, const char *value, void *cb); extern int git_env_bool(const char *, int); extern unsigned long git_env_ulong(const char *, unsigned long); extern int git_config_system(void); @@ -1490,6 +1592,8 @@ extern const char *get_log_output_encoding(void); extern const char *get_commit_output_encoding(void); extern int git_config_parse_parameter(const char *, config_fn_t fn, void *data); +extern const char *current_config_origin_type(void); +extern const char *current_config_name(void); struct config_include_data { int depth; @@ -1568,6 +1672,14 @@ extern int git_config_get_bool(const char *key, int *dest); extern int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest); extern int git_config_get_maybe_bool(const char *key, int *dest); extern int git_config_get_pathname(const char *key, const char **dest); +extern int git_config_get_untracked_cache(void); + +/* + * This is a hack for test programs like test-dump-untracked-cache to + * ensure that they do not modify the untracked cache when reading it. + * Do not use it otherwise! + */ +extern int ignore_untracked_cache_config; struct key_value_info { const char *filename; @@ -1621,6 +1733,7 @@ extern int pager_use_color; extern int term_columns(void); extern int decimal_width(uintmax_t); extern int check_pager_config(const char *cmd); +extern void prepare_pager_args(struct child_process *, const char *pager); extern const char *editor_program; extern const char *askpass_program; @@ -1688,7 +1801,7 @@ int split_cmdline(char *cmdline, const char ***argv); /* Takes a negative value returned by split_cmdline */ const char *split_cmdline_strerror(int cmdline_errno); -/* git.c */ +/* setup.c */ struct startup_info { int have_repository; const char *prefix; @@ -1737,4 +1850,12 @@ void stat_validity_update(struct stat_validity *sv, int fd); int versioncmp(const char *s1, const char *s2); void sleep_millisec(int millisec); +/* + * Create a directory and (if share is nonzero) adjust its permissions + * according to the shared_repository setting. Only use this for + * directories under $GIT_DIR. Don't use it for working tree + * directories. + */ +void safe_create_dir(const char *dir, int share); + #endif /* CACHE_H */ |