#include "trace.h"
#include "string-list.h"
#include "pack-revindex.h"
+#include "hash.h"
+#include "path.h"
+#include "sha1-array.h"
-#include SHA1_HEADER
#ifndef platform_SHA_CTX
/*
* platform's underlying implementation of SHA-1; could be OpenSSL,
#define GIT_SHA1_RAWSZ 20
#define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ)
+/* The length in byte and in hex digits of the largest possible hash value. */
+#define GIT_MAX_RAWSZ GIT_SHA1_RAWSZ
+#define GIT_MAX_HEXSZ GIT_SHA1_HEXSZ
+
struct object_id {
- unsigned char hash[GIT_SHA1_RAWSZ];
+ unsigned char hash[GIT_MAX_RAWSZ];
};
#if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
extern struct index_state the_index;
/* Name hashing */
+extern int test_lazy_init_name_hash(struct index_state *istate, int try_threaded);
extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
extern void remove_name_hash(struct index_state *istate, struct cache_entry *ce);
extern void free_name_hash(struct index_state *istate);
#define GITATTRIBUTES_FILE ".gitattributes"
#define INFOATTRIBUTES_FILE "info/attributes"
#define ATTRIBUTE_MACRO_PREFIX "[attr]"
+#define GITMODULES_FILE ".gitmodules"
#define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
#define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
#define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
*/
extern const char * const local_repo_env[];
+extern void setup_git_env(void);
+
/*
* Returns true iff we have a configured git repository (either via
* setup_git_directory, or in the environment via $GIT_DIR).
#define READ_GITFILE_ERR_NO_PATH 6
#define READ_GITFILE_ERR_NOT_A_REPO 7
#define READ_GITFILE_ERR_TOO_LARGE 8
+extern void read_gitfile_error_die(int error_code, const char *path, const char *dir);
extern const char *read_gitfile_gently(const char *path, int *return_error_code);
#define read_gitfile(path) read_gitfile_gently((path), NULL)
-extern const char *resolve_gitdir(const char *suspect);
+extern const char *resolve_gitdir_gently(const char *suspect, int *return_error_code);
+#define resolve_gitdir(path) resolve_gitdir_gently((path), NULL)
+
extern void set_git_work_tree(const char *tree);
#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
-extern const char **get_pathspec(const char *prefix, const char **pathspec);
extern void setup_work_tree(void);
+/*
+ * 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 non-zero if no repository was found.
+ */
+extern int discover_git_directory(struct strbuf *commondir,
+ struct strbuf *gitdir);
extern const char *setup_git_directory_gently(int *);
extern const char *setup_git_directory(void);
extern char *prefix_path(const char *prefix, int len, const char *path);
extern char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path);
-extern const char *prefix_filename(const char *prefix, int len, const char *path);
+
+/*
+ * Concatenate "prefix" (if len is non-zero) and "path", with no
+ * connecting characters (so "prefix" should end with a "/").
+ * Unlike prefix_path, this should be used if the named file does
+ * not have to interact with index entry; i.e. name of a random file
+ * on the filesystem.
+ *
+ * The return value is always a newly allocated string (even if the
+ * prefix was empty).
+ */
+extern char *prefix_filename(const char *prefix, const char *path);
+
extern int check_filename(const char *prefix, const char *name);
extern void verify_filename(const char *prefix,
const char *name,
#define CLOSE_LOCK (1 << 1)
extern int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags);
extern int discard_index(struct index_state *);
+extern void move_index_extensions(struct index_state *dst, struct index_state *src);
extern int unmerged_index(const struct index_state *);
extern int verify_path(const char *path);
+extern int strcmp_offset(const char *s1, const char *s2, size_t *first_change);
extern int index_dir_exists(struct index_state *istate, const char *name, int namelen);
extern void adjust_dirname_case(struct index_state *istate, char *name);
extern struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase);
extern int ce_same_name(const struct cache_entry *a, const struct cache_entry *b);
extern void set_object_name_for_intent_to_add_entry(struct cache_entry *ce);
extern int index_name_is_other(const struct index_state *, const char *, int);
-extern void *read_blob_data_from_index(struct index_state *, const char *, unsigned long *);
+extern void *read_blob_data_from_index(const struct index_state *, const char *, unsigned long *);
/* do stat comparison even if CE_VALID is true */
#define CE_MATCH_IGNORE_VALID 01
extern int hold_locked_index(struct lock_file *, int);
extern void set_alternate_index_output(const char *);
+extern int verify_index_checksum;
+
/* Environment bits from configuration mechanism */
extern int trust_executable_bit;
extern int trust_ctime;
extern int ignore_case;
extern int assume_unchanged;
extern int prefer_symlink_refs;
-extern int log_all_ref_updates;
extern int warn_ambiguous_refs;
extern int warn_on_object_refname_ambiguity;
extern const char *apply_default_whitespace;
extern int precomposed_unicode;
extern int protect_hfs;
extern int protect_ntfs;
-extern int git_db_env, git_index_env, git_graft_env, git_common_dir_env;
/*
* Include broken refs in all ref iterations, which will
};
extern enum hide_dotfiles_type hide_dotfiles;
+enum log_refs_config {
+ LOG_REFS_UNSET = -1,
+ LOG_REFS_NONE = 0,
+ LOG_REFS_NORMAL,
+ LOG_REFS_ALWAYS
+};
+extern enum log_refs_config log_all_ref_updates;
+
enum branch_track {
BRANCH_TRACK_UNSPECIFIED = -1,
BRANCH_TRACK_NEVER = 0,
#define DATA_CHANGED 0x0020
#define TYPE_CHANGED 0x0040
-/*
- * Return a statically allocated filename, either generically (mkpath), in
- * the repository directory (git_path), or in a submodule's repository
- * directory (git_path_submodule). In all cases, note that the result
- * may be overwritten by another call to _any_ of the functions. Consider
- * using the safer "dup" or "strbuf" formats below (in some cases, the
- * unsafe versions have already been removed).
- */
-extern const char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
-extern const char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
-extern const char *git_common_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
-
-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 void strbuf_git_common_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 int strbuf_git_path_submodule(struct strbuf *sb, const char *path,
- const char *fmt, ...)
- __attribute__((format (printf, 3, 4)));
-extern char *git_pathdup(const char *fmt, ...)
- __attribute__((format (printf, 1, 2)));
-extern char *mkpathdup(const char *fmt, ...)
- __attribute__((format (printf, 1, 2)));
-extern char *git_pathdup_submodule(const char *path, const char *fmt, ...)
- __attribute__((format (printf, 2, 3)));
-
-extern void report_linked_checkout_garbage(void);
-
-/*
- * You can define a static memoized git path like:
- *
- * static GIT_PATH_FUNC(git_path_foo, "FOO");
- *
- * or use one of the global ones below.
- */
-#define GIT_PATH_FUNC(func, filename) \
- const char *func(void) \
- { \
- static char *ret; \
- if (!ret) \
- ret = git_pathdup(filename); \
- return ret; \
- }
-
-const char *git_path_cherry_pick_head(void);
-const char *git_path_revert_head(void);
-const char *git_path_squash_msg(void);
-const char *git_path_merge_msg(void);
-const char *git_path_merge_rr(void);
-const char *git_path_merge_mode(void);
-const char *git_path_merge_head(void);
-const char *git_path_fetch_head(void);
-const char *git_path_shallow(void);
-
/*
* Return the name of the file in the local object database that would
* be used to store a loose object with the specified sha1. The
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 unsigned char null_sha1[GIT_MAX_RAWSZ];
extern const struct object_id null_oid;
static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
{
- int i;
-
- for (i = 0; i < GIT_SHA1_RAWSZ; i++, sha1++, sha2++) {
- if (*sha1 != *sha2)
- return *sha1 - *sha2;
- }
-
- return 0;
+ return memcmp(sha1, sha2, GIT_SHA1_RAWSZ);
}
static inline int oidcmp(const struct object_id *oid1, const struct object_id *oid2)
hashcpy(dst->hash, src->hash);
}
+static inline struct object_id *oiddup(const struct object_id *src)
+{
+ struct object_id *dst = xmalloc(sizeof(struct object_id));
+ oidcpy(dst, src);
+ return dst;
+}
+
static inline void hashclr(unsigned char *hash)
{
memset(hash, 0, GIT_SHA1_RAWSZ);
return !hashcmp(oid->hash, EMPTY_TREE_SHA1_BIN);
}
-
-int git_mkstemp(char *path, size_t n, const char *template);
-
/* set default permissions by passing mode arguments to open(2) */
int git_mkstemps_mode(char *pattern, int suffix_len, int mode);
int git_mkstemp_mode(char *pattern, int mode);
/*
* Create the directory containing the named path, using care to be
- * somewhat safe against races. Return one of the scld_error values
- * to indicate success/failure.
+ * somewhat safe against races. Return one of the scld_error values to
+ * indicate success/failure. On error, set errno to describe the
+ * problem.
*
* SCLD_VANISHED indicates that one of the ancestor directories of the
* path existed at one point during the function call and then
enum scld_error safe_create_leading_directories(char *path);
enum scld_error safe_create_leading_directories_const(const char *path);
+/*
+ * Callback function for raceproof_create_file(). This function is
+ * expected to do something that makes dirname(path) permanent despite
+ * the fact that other processes might be cleaning up empty
+ * directories at the same time. Usually it will create a file named
+ * path, but alternatively it could create another file in that
+ * directory, or even chdir() into that directory. The function should
+ * return 0 if the action was completed successfully. On error, it
+ * should return a nonzero result and set errno.
+ * raceproof_create_file() treats two errno values specially:
+ *
+ * - ENOENT -- dirname(path) does not exist. In this case,
+ * raceproof_create_file() tries creating dirname(path)
+ * (and any parent directories, if necessary) and calls
+ * the function again.
+ *
+ * - EISDIR -- the file already exists and is a directory. In this
+ * case, raceproof_create_file() removes the directory if
+ * it is empty (and recursively any empty directories that
+ * it contains) and calls the function again.
+ *
+ * Any other errno causes raceproof_create_file() to fail with the
+ * callback's return value and errno.
+ *
+ * Obviously, this function should be OK with being called again if it
+ * fails with ENOENT or EISDIR. In other scenarios it will not be
+ * called again.
+ */
+typedef int create_file_fn(const char *path, void *cb);
+
+/*
+ * Create a file in dirname(path) by calling fn, creating leading
+ * directories if necessary. Retry a few times in case we are racing
+ * with another process that is trying to clean up the directory that
+ * contains path. See the documentation for create_file_fn for more
+ * details.
+ *
+ * Return the value and set the errno that resulted from the most
+ * recent call of fn. fn is always called at least once, and will be
+ * called more than once if it returns ENOENT or EISDIR.
+ */
+int raceproof_create_file(const char *path, create_file_fn fn, void *cb);
+
int mkdir_in_gitdir(const char *path);
-extern char *expand_user_path(const char *path);
+extern char *expand_user_path(const char *path, int real_home);
const char *enter_repo(const char *path, int strict);
static inline int is_absolute_path(const char *path)
{
return is_dir_sep(path[0]) || has_dos_drive_prefix(path);
}
int is_directory(const char *);
+char *strbuf_realpath(struct strbuf *resolved, const char *path,
+ int die_on_error);
const char *real_path(const char *path);
const char *real_path_if_valid(const char *path);
+char *real_pathdup(const char *path, int die_on_error);
const char *absolute_path(const char *path);
+char *absolute_pathdup(const char *path);
const char *remove_leading_path(const char *in, const char *prefix);
const char *relative_path(const char *in, const char *prefix, struct strbuf *sb);
int normalize_path_copy_len(char *dst, const char *src, int *prefix_len);
*/
extern char *xdg_config_home(const char *filename);
-/* object replacement */
-#define LOOKUP_REPLACE_OBJECT 1
-#define LOOKUP_UNKNOWN_OBJECT 2
-extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
+/**
+ * Return a newly allocated string with the evaluation of
+ * "$XDG_CACHE_HOME/git/$filename" if $XDG_CACHE_HOME is non-empty, otherwise
+ * "$HOME/.cache/git/$filename". Return NULL upon error.
+ */
+extern char *xdg_cache_home(const char *filename);
+
+extern void *read_sha1_file_extended(const unsigned char *sha1,
+ enum object_type *type,
+ unsigned long *size, int lookup_replace);
static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
{
- return read_sha1_file_extended(sha1, type, size, LOOKUP_REPLACE_OBJECT);
+ return read_sha1_file_extended(sha1, type, size, 1);
}
/*
return do_lookup_replace_object(sha1);
}
-static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1, unsigned flag)
-{
- if (!(flag & LOOKUP_REPLACE_OBJECT))
- return sha1;
- return lookup_replace_object(sha1);
-}
-
/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
extern int sha1_object_info(const unsigned char *, unsigned long *);
extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
extern int hash_sha1_file_literally(const void *buf, unsigned long len, const char *type, unsigned char *sha1, unsigned flags);
extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
extern int force_object_loose(const unsigned char *sha1, time_t mtime);
-extern int git_open(const char *name);
+extern int git_open_cloexec(const char *name, int flags);
+#define git_open(name) git_open_cloexec(name, O_RDONLY)
extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size);
extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
extern int parse_sha1_header(const char *hdr, unsigned long *sizep);
extern int has_sha1_pack(const unsigned char *sha1);
/*
- * Return true iff we have an object named sha1, whether local or in
- * an alternate object database, and whether packed or loose. This
- * function does not respect replace references.
+ * Open the loose object at path, check its sha1, and return the contents,
+ * type, and size. If the object is a blob, then "contents" may return NULL,
+ * to allow streaming of large blobs.
*
- * If the QUICK flag is set, do not re-check the pack directory
- * when we cannot find the object (this means we may give a false
- * negative answer if another process is simultaneously repacking).
+ * Returns 0 on success, negative on error (details may be written to stderr).
+ */
+int read_loose_object(const char *path,
+ const unsigned char *expected_sha1,
+ enum object_type *type,
+ unsigned long *size,
+ void **contents);
+
+/*
+ * Convenience for sha1_object_info_extended() with a NULL struct
+ * object_info. OBJECT_INFO_SKIP_CACHED is automatically set; pass
+ * nonzero flags to also set other flags.
*/
-#define HAS_SHA1_QUICK 0x1
extern int has_sha1_file_with_flags(const unsigned char *sha1, int flags);
static inline int has_sha1_file(const unsigned char *sha1)
{
extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
+/* Helper to check and "touch" a file */
+extern int check_and_freshen_file(const char *fn, int freshen);
+
extern const signed char hexval_table[256];
static inline unsigned int hexval(unsigned char c)
{
struct object_context {
unsigned char tree[20];
- char path[PATH_MAX];
unsigned mode;
/*
* symlink_path is only used by get_tree_entry_follow_symlinks,
* and only for symlinks that point outside the repository.
*/
struct strbuf symlink_path;
+ /*
+ * If GET_OID_RECORD_PATH is set, this will record path (if any)
+ * found when resolving the name. The caller is responsible for
+ * releasing the memory.
+ */
+ char *path;
};
-#define GET_SHA1_QUIETLY 01
-#define GET_SHA1_COMMIT 02
-#define GET_SHA1_COMMITTISH 04
-#define GET_SHA1_TREE 010
-#define GET_SHA1_TREEISH 020
-#define GET_SHA1_BLOB 040
-#define GET_SHA1_FOLLOW_SYMLINKS 0100
-#define GET_SHA1_ONLY_TO_DIE 04000
-
-#define GET_SHA1_DISAMBIGUATORS \
- (GET_SHA1_COMMIT | GET_SHA1_COMMITTISH | \
- GET_SHA1_TREE | GET_SHA1_TREEISH | \
- GET_SHA1_BLOB)
-
-extern int get_sha1(const char *str, unsigned char *sha1);
-extern int get_sha1_commit(const char *str, unsigned char *sha1);
-extern int get_sha1_committish(const char *str, unsigned char *sha1);
-extern int get_sha1_tree(const char *str, unsigned char *sha1);
-extern int get_sha1_treeish(const char *str, unsigned char *sha1);
-extern int get_sha1_blob(const char *str, unsigned char *sha1);
-extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix);
-extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc);
+#define GET_OID_QUIETLY 01
+#define GET_OID_COMMIT 02
+#define GET_OID_COMMITTISH 04
+#define GET_OID_TREE 010
+#define GET_OID_TREEISH 020
+#define GET_OID_BLOB 040
+#define GET_OID_FOLLOW_SYMLINKS 0100
+#define GET_OID_RECORD_PATH 0200
+#define GET_OID_ONLY_TO_DIE 04000
+
+#define GET_OID_DISAMBIGUATORS \
+ (GET_OID_COMMIT | GET_OID_COMMITTISH | \
+ GET_OID_TREE | GET_OID_TREEISH | \
+ GET_OID_BLOB)
extern int get_oid(const char *str, struct object_id *oid);
+extern int get_oid_commit(const char *str, struct object_id *oid);
+extern int get_oid_committish(const char *str, struct object_id *oid);
+extern int get_oid_tree(const char *str, struct object_id *oid);
+extern int get_oid_treeish(const char *str, struct object_id *oid);
+extern int get_oid_blob(const char *str, struct object_id *oid);
+extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix);
+extern int get_oid_with_context(const char *str, unsigned flags, struct object_id *oid, struct object_context *oc);
-typedef int each_abbrev_fn(const unsigned char *sha1, void *);
+
+typedef int each_abbrev_fn(const struct object_id *oid, void *);
extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *);
extern int set_disambiguate_hint_config(const char *var, const char *value);
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 */
-extern int interpret_branch_name(const char *str, int len, struct strbuf *);
+/*
+ * Parse a 40-character hexadecimal object ID starting from hex, updating the
+ * pointer specified by end when parsing stops. The resulting object ID is
+ * stored in oid. Returns 0 on success. Parsing will stop on the first NUL or
+ * other invalid character. end is only updated on success; otherwise, it is
+ * unmodified.
+ */
+extern int parse_oid_hex(const char *hex, struct object_id *oid, const char **end);
+
+/*
+ * This reads short-hand syntax that not only evaluates to a commit
+ * object name, but also can act as if the end user spelled the name
+ * of the branch from the command line.
+ *
+ * - "@{-N}" finds the name of the Nth previous branch we were on, and
+ * places the name of the branch in the given buf and returns the
+ * number of characters parsed if successful.
+ *
+ * - "<branch>@{upstream}" finds the name of the other ref that
+ * <branch> is configured to merge with (missing <branch> defaults
+ * to the current branch), and places the name of the branch in the
+ * given buf and returns the number of characters parsed if
+ * successful.
+ *
+ * If the input is not of the accepted format, it returns a negative
+ * number to signal an error.
+ *
+ * If the input was ok but there are not N branch switches in the
+ * reflog, it returns 0.
+ *
+ * If "allowed" is non-zero, it is a treated as a bitfield of allowable
+ * expansions: local branches ("refs/heads/"), remote branches
+ * ("refs/remotes/"), or "HEAD". If no "allowed" bits are set, any expansion is
+ * allowed, even ones to refs outside of those namespaces.
+ */
+#define INTERPRET_BRANCH_LOCAL (1<<0)
+#define INTERPRET_BRANCH_REMOTE (1<<1)
+#define INTERPRET_BRANCH_HEAD (1<<2)
+extern int interpret_branch_name(const char *str, int len, struct strbuf *,
+ unsigned allowed);
extern int get_oid_mb(const char *str, struct object_id *oid);
extern int validate_headref(const char *ref);
#define DATE_MODE(t) date_mode_from_type(DATE_##t)
struct date_mode *date_mode_from_type(enum date_mode_type type);
-const char *show_date(unsigned long time, int timezone, const struct date_mode *mode);
-void show_date_relative(unsigned long time, int tz, const struct timeval *now,
+const char *show_date(timestamp_t time, int timezone, const struct date_mode *mode);
+void show_date_relative(timestamp_t time, int tz, const struct timeval *now,
struct strbuf *timebuf);
int parse_date(const char *date, struct strbuf *out);
-int parse_date_basic(const char *date, unsigned long *timestamp, int *offset);
-int parse_expiry_date(const char *date, unsigned long *timestamp);
+int parse_date_basic(const char *date, timestamp_t *timestamp, int *offset);
+int parse_expiry_date(const char *date, timestamp_t *timestamp);
void datestamp(struct strbuf *out);
#define approxidate(s) approxidate_careful((s), NULL)
-unsigned long approxidate_careful(const char *, int *);
-unsigned long approxidate_relative(const char *date, const struct timeval *now);
+timestamp_t approxidate_careful(const char *, int *);
+timestamp_t approxidate_relative(const char *date, const struct timeval *now);
void parse_date_format(const char *format, struct date_mode *mode);
-int date_overflows(unsigned long date);
+int date_overflows(timestamp_t date);
#define IDENT_STRICT 1
#define IDENT_NO_DATE 2
struct index_state *istate;
const char *base_dir;
int base_dir_len;
+ struct delayed_checkout *delayed_checkout;
unsigned force:1,
quiet:1,
not_new:1,
#define TEMPORARY_FILENAME_LENGTH 25
extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
+extern void enable_delayed_checkout(struct checkout *state);
+extern int finish_delayed_checkout(struct checkout *state);
struct cache_def {
struct strbuf path;
struct strbuf scratch;
size_t base_len;
+ /*
+ * Used to store the results of readdir(3) calls when searching
+ * for unique abbreviated hashes. This cache is never
+ * invalidated, thus it's racy and not necessarily accurate.
+ * That's fine for its purpose; don't use it for tasks requiring
+ * greater accuracy!
+ */
+ char loose_objects_subdir_seen[256];
+ struct oid_array loose_objects_cache;
+
char path[FLEX_ARRAY];
} *alt_odb_list;
extern void prepare_alt_odb(void);
extern void pack_report(void);
+/*
+ * Create a temporary file rooted in the object database directory, or
+ * die on failure. The filename is taken from "pattern", which should have the
+ * usual "XXXXXX" trailer, and the resulting filename is written into the
+ * "template" buffer. Returns the open descriptor.
+ */
+extern int odb_mkstemp(struct strbuf *template, const char *pattern);
+
+/*
+ * Generate the filename to be used for a pack file with checksum "sha1" and
+ * extension "ext". The result is written into the strbuf "buf", overwriting
+ * any existing contents. A pointer to buf->buf is returned as a convenience.
+ *
+ * Example: odb_pack_name(out, sha1, "idx") => ".git/objects/pack/pack-1234..idx"
+ */
+extern char *odb_pack_name(struct strbuf *buf, const unsigned char *sha1, const char *ext);
+
+/*
+ * Create a pack .keep file named "name" (which should generally be the output
+ * of odb_pack_name). Returns a file descriptor opened for writing, or -1 on
+ * error.
+ */
+extern int odb_pack_keep(const char *name);
+
/*
* mmap the index file for the specified packfile (if it is not
* already mmapped). Return 0 on success.
* error.
*/
extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t n);
+/*
+ * Like nth_packed_object_sha1, but write the data into the object specified by
+ * the the first argument. Returns the first argument on success, and NULL on
+ * error.
+ */
+extern const struct object_id *nth_packed_object_oid(struct object_id *, struct packed_git *, uint32_t n);
/*
* Return the offset of the nth object within the specified packfile.
* scratch buffer, but restored to its original contents before
* the function returns.
*/
-typedef int each_loose_object_fn(const unsigned char *sha1,
+typedef int each_loose_object_fn(const struct object_id *oid,
const char *path,
void *data);
typedef int each_loose_cruft_fn(const char *basename,
const char *path,
void *data);
-typedef int each_loose_subdir_fn(int nr,
+typedef int each_loose_subdir_fn(unsigned int nr,
const char *path,
void *data);
+int for_each_file_in_obj_subdir(unsigned int subdir_nr,
+ struct strbuf *path,
+ each_loose_object_fn obj_cb,
+ each_loose_cruft_fn cruft_cb,
+ each_loose_subdir_fn subdir_cb,
+ void *data);
int for_each_loose_file_in_objdir(const char *path,
each_loose_object_fn obj_cb,
each_loose_cruft_fn cruft_cb,
* LOCAL_ONLY flag is set).
*/
#define FOR_EACH_OBJECT_LOCAL_ONLY 0x1
-typedef int each_packed_object_fn(const unsigned char *sha1,
+typedef int each_packed_object_fn(const struct object_id *oid,
struct packed_git *pack,
uint32_t pos,
void *data);
off_t *disk_sizep;
unsigned char *delta_base_sha1;
struct strbuf *typename;
+ void **contentp;
/* Response */
enum {
*/
#define OBJECT_INFO_INIT {NULL}
+/* Invoke lookup_replace_object() on the given hash */
+#define OBJECT_INFO_LOOKUP_REPLACE 1
+/* Allow reading from a loose object file of unknown/bogus type */
+#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2
+/* Do not check cached storage */
+#define OBJECT_INFO_SKIP_CACHED 4
+/* Do not retry packed storage after checking packed and loose storage */
+#define OBJECT_INFO_QUICK 8
extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags);
extern int packed_object_info(struct packed_git *pack, off_t offset, struct object_info *);
/* Dumb servers support */
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_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
-#define CONFIG_NOTHING_SET 5
-#define CONFIG_INVALID_PATTERN 6
-#define CONFIG_GENERIC_ERROR 7
-
-#define CONFIG_REGEX_NONE ((void *)1)
-
-struct git_config_source {
- unsigned int use_stdin:1;
- const char *file;
- const char *blob;
-};
-
-enum config_origin_type {
- CONFIG_ORIGIN_BLOB,
- CONFIG_ORIGIN_FILE,
- CONFIG_ORIGIN_STDIN,
- CONFIG_ORIGIN_SUBMODULE_BLOB,
- CONFIG_ORIGIN_CMDLINE
-};
-
-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_mem(config_fn_t fn, const enum config_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_parse_ulong(const char *, unsigned long *);
-extern int git_parse_maybe_bool(const char *);
-extern int git_config_int(const char *, const char *);
-extern int64_t git_config_int64(const char *, const char *);
-extern unsigned long git_config_ulong(const char *, const char *);
-extern int git_config_bool_or_int(const char *, const char *, int *);
-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_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_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 git_env_bool(const char *, int);
-extern unsigned long git_env_ulong(const char *, unsigned long);
-extern int git_config_system(void);
-extern int config_error_nonbool(const char *);
-#if defined(__GNUC__)
-#define config_error_nonbool(s) (config_error_nonbool(s), const_error())
-#endif
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);
-
-enum config_scope {
- CONFIG_SCOPE_UNKNOWN = 0,
- CONFIG_SCOPE_SYSTEM,
- CONFIG_SCOPE_GLOBAL,
- CONFIG_SCOPE_REPO,
- CONFIG_SCOPE_CMDLINE,
-};
-
-extern enum config_scope current_config_scope(void);
-extern const char *current_config_origin_type(void);
-extern const char *current_config_name(void);
-
-struct config_include_data {
- int depth;
- config_fn_t fn;
- void *data;
-};
-#define CONFIG_INCLUDE_INIT { 0 }
-extern int git_config_include(const char *name, const char *value, void *data);
-
-/*
- * Match and parse a config key of the form:
- *
- * section.(subsection.)?key
- *
- * (i.e., what gets handed to a config_fn_t). The caller provides the section;
- * we return -1 if it does not match, 0 otherwise. The subsection and key
- * out-parameters are filled by the function (and subsection is NULL if it is
- * missing).
- */
-extern int parse_config_key(const char *var,
- const char *section,
- const char **subsection, int *subsection_len,
- const char **key);
-
-struct config_set_element {
- struct hashmap_entry ent;
- char *key;
- struct string_list value_list;
-};
-
-struct configset_list_item {
- struct config_set_element *e;
- int value_index;
-};
-
-/*
- * the contents of the list are ordered according to their
- * position in the config files and order of parsing the files.
- * (i.e. key-value pair at the last position of .git/config will
- * be at the last item of the list)
- */
-struct configset_list {
- struct configset_list_item *items;
- unsigned int nr, alloc;
-};
-
-struct config_set {
- struct hashmap config_hash;
- int hash_initialized;
- struct configset_list list;
-};
-
-extern void git_configset_init(struct config_set *cs);
-extern int git_configset_add_file(struct config_set *cs, const char *filename);
-extern int git_configset_get_value(struct config_set *cs, const char *key, const char **value);
-extern const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key);
-extern void git_configset_clear(struct config_set *cs);
-extern int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest);
-extern int git_configset_get_string(struct config_set *cs, const char *key, char **dest);
-extern int git_configset_get_int(struct config_set *cs, const char *key, int *dest);
-extern int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest);
-extern int git_configset_get_bool(struct config_set *cs, const char *key, int *dest);
-extern int git_configset_get_bool_or_int(struct config_set *cs, const char *key, int *is_bool, int *dest);
-extern int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest);
-extern int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest);
-
-extern int git_config_get_value(const char *key, const char **value);
-extern const struct string_list *git_config_get_value_multi(const char *key);
-extern void git_config_clear(void);
-extern void git_config_iter(config_fn_t fn, void *data);
-extern int git_config_get_string_const(const char *key, const char **dest);
-extern int git_config_get_string(const char *key, char **dest);
-extern int git_config_get_int(const char *key, int *dest);
-extern int git_config_get_ulong(const char *key, unsigned long *dest);
-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.
*/
extern int ignore_untracked_cache_config;
-struct key_value_info {
- const char *filename;
- int linenr;
- enum config_origin_type origin_type;
- enum config_scope scope;
-};
-
-extern NORETURN void git_die_config(const char *key, const char *err, ...) __attribute__((format(printf, 2, 3)));
-extern NORETURN void git_die_config_linenr(const char *key, const char *filename, int linenr);
-
extern int committer_ident_sufficiently_given(void);
extern int author_ident_sufficiently_given(void);
#define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
/* ls-files */
-void overlay_tree_on_cache(const char *tree_name, const char *prefix);
+void overlay_tree_on_index(struct index_state *istate,
+ const char *tree_name, const char *prefix);
char *alias_lookup(const char *alias);
int split_cmdline(char *cmdline, const char ***argv);
int try_merge_command(const char *strategy, size_t xopts_nr,
const char **xopts, struct commit_list *common,
const char *head_arg, struct commit_list *remotes);
-int checkout_fast_forward(const unsigned char *from,
- const unsigned char *to,
+int checkout_fast_forward(const struct object_id *from,
+ const struct object_id *to,
int overwrite_ignore);