#include "git-compat-util.h"
#include "strbuf.h"
#include "hashmap.h"
-#include "mru.h"
+#include "list.h"
#include "advice.h"
#include "gettext.h"
#include "convert.h"
#include "sha1-array.h"
#include "repository.h"
-#ifndef platform_SHA_CTX
-/*
- * platform's underlying implementation of SHA-1; could be OpenSSL,
- * blk_SHA, Apple CommonCrypto, etc... Note that including
- * SHA1_HEADER may have already defined platform_SHA_CTX for our
- * own implementations like block-sha1 and ppc-sha1, so we list
- * the default for OpenSSL compatible SHA-1 implementations here.
- */
-#define platform_SHA_CTX SHA_CTX
-#define platform_SHA1_Init SHA1_Init
-#define platform_SHA1_Update SHA1_Update
-#define platform_SHA1_Final SHA1_Final
-#endif
-
-#define git_SHA_CTX platform_SHA_CTX
-#define git_SHA1_Init platform_SHA1_Init
-#define git_SHA1_Update platform_SHA1_Update
-#define git_SHA1_Final platform_SHA1_Final
-
-#ifdef SHA1_MAX_BLOCK_SIZE
-#include "compat/sha1-chunked.h"
-#undef git_SHA1_Update
-#define git_SHA1_Update git_SHA1_Update_Chunked
-#endif
-
#include <zlib.h>
typedef struct git_zstream {
z_stream z;
struct split_index *split_index;
struct cache_time timestamp;
unsigned name_hash_initialized : 1,
- initialized : 1;
+ initialized : 1,
+ drop_cache_tree : 1;
struct hashmap name_hash;
struct hashmap dir_hash;
unsigned char sha1[20];
#define active_cache_tree (the_index.cache_tree)
#define read_cache() read_index(&the_index)
-#define read_cache_from(path) read_index_from(&the_index, (path))
+#define read_cache_from(path) read_index_from(&the_index, (path), (get_git_dir()))
#define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
#define is_cache_unborn() is_index_unborn(&the_index)
#define read_cache_unmerged() read_index_unmerged(&the_index)
*/
extern const char * const local_repo_env[];
-extern void setup_git_env(void);
+extern void setup_git_env(const char *git_dir);
/*
* Returns true iff we have a configured git repository (either via
extern int read_index_preload(struct index_state *, const struct pathspec *pathspec);
extern int do_read_index(struct index_state *istate, const char *path,
int must_exist); /* for testting only! */
-extern int read_index_from(struct index_state *, const char *path);
+extern int read_index_from(struct index_state *, const char *path,
+ const char *gitdir);
extern int is_index_unborn(struct index_state *);
extern int read_index_unmerged(struct index_state *);
/* For use with `write_locked_index()`. */
#define COMMIT_LOCK (1 << 0)
+#define SKIP_IF_UNCHANGED (1 << 1)
/*
* Write the index while holding an already-taken lock. Close the lock,
* With `COMMIT_LOCK`, the lock is always committed or rolled back.
* Without it, the lock is closed, but neither committed nor rolled
* back.
+ *
+ * If `SKIP_IF_UNCHANGED` is given and the index is unchanged, nothing
+ * is written (and the lock is rolled back if `COMMIT_LOCK` is given).
*/
extern int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags);
#define GIT_REPO_VERSION 0
#define GIT_REPO_VERSION_READ 1
extern int repository_format_precious_objects;
+extern char *repository_format_partial_clone;
+extern const char *core_partial_clone_filter_default;
struct repository_format {
int version;
int precious_objects;
+ char *partial_clone; /* value of extensions.partialclone */
int is_bare;
int hash_algo;
char *work_tree;
#define DATA_CHANGED 0x0020
#define TYPE_CHANGED 0x0040
-/*
- * 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
- * return value is a pointer to a statically allocated buffer that is
- * overwritten each time the function is called.
- */
-extern const char *sha1_file_name(const unsigned char *sha1);
-
/*
* Return an abbreviated sha1 unique within this repository's object database.
* The result will be at least `len` characters long, and will be NUL
* more calls to find_unique_abbrev are made.
*
* 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
+ * least `GIT_MAX_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 char *find_unique_abbrev(const struct object_id *oid, int len);
+extern int find_unique_abbrev_r(char *hex, const struct object_id *oid, int len);
extern const unsigned char null_sha1[GIT_MAX_RAWSZ];
extern const struct object_id null_oid;
static inline void oidclr(struct object_id *oid)
{
- hashclr(oid->hash);
+ memset(oid->hash, 0, GIT_MAX_RAWSZ);
}
"\xe6\x9d\xe2\x9b\xb2\xd1\xd6\x43\x4b\x8b" \
"\x29\xae\x77\x5a\xd8\xc2\xe4\x8c\x53\x91"
extern const struct object_id empty_blob_oid;
-#define EMPTY_BLOB_SHA1_BIN (empty_blob_oid.hash)
-
static inline int is_empty_blob_sha1(const unsigned char *sha1)
{
*/
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)
+extern void *read_object_file_extended(const struct object_id *oid,
+ enum object_type *type,
+ unsigned long *size, int lookup_replace);
+static inline void *read_object_file(const struct object_id *oid, enum object_type *type, unsigned long *size)
{
- return read_sha1_file_extended(sha1, type, size, 1);
+ return read_object_file_extended(oid, type, size, 1);
}
/*
* This internal function is only declared here for the benefit of
* lookup_replace_object(). Please do not call it directly.
*/
-extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1);
+extern const struct object_id *do_lookup_replace_object(const struct object_id *oid);
/*
* If object sha1 should be replaced, return the replacement object's
* either sha1 or a pointer to a permanently-allocated value. When
* object replacement is suppressed, always return sha1.
*/
-static inline const unsigned char *lookup_replace_object(const unsigned char *sha1)
+static inline const struct object_id *lookup_replace_object(const struct object_id *oid)
{
if (!check_replace_refs)
- return sha1;
- return do_lookup_replace_object(sha1);
+ return oid;
+ return do_lookup_replace_object(oid);
}
-/* 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 write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
-extern int hash_sha1_file_literally(const void *buf, unsigned long len, const char *type, struct object_id *oid, 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);
+/* Read and unpack an object file into memory, write memory to an object file */
+extern int oid_object_info(const struct object_id *, unsigned long *);
+
+extern int hash_object_file(const void *buf, unsigned long len,
+ const char *type, struct object_id *oid);
+
+extern int write_object_file(const void *buf, unsigned long len,
+ const char *type, struct object_id *oid);
+
+extern int hash_object_file_literally(const void *buf, unsigned long len,
+ const char *type, struct object_id *oid,
+ unsigned flags);
+
+extern int pretend_object_file(void *, unsigned long, enum object_type,
+ struct object_id *oid);
+
+extern int force_object_loose(const struct object_id *oid, time_t mtime);
+
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 check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
+extern int check_object_signature(const struct object_id *oid, void *buf, unsigned long size, const char *type);
extern int finalize_object_file(const char *tmpfile, const char *filename);
/*
- * Open the loose object at path, check its sha1, and return the contents,
+ * Open the loose object at path, check its hash, and return the contents,
* type, and size. If the object is a blob, then "contents" may return NULL,
* to allow streaming of large blobs.
*
* 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,
+ const struct object_id *expected_oid,
enum object_type *type,
unsigned long *size,
void **contents);
*/
extern int has_loose_object_nonlocal(const unsigned char *sha1);
-extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
+extern void assert_oid_type(const struct object_id *oid, enum object_type expect);
/* Helper to check and "touch" a file */
extern int check_and_freshen_file(const char *fn, int freshen);
extern int name_compare(const char *name1, size_t len1, const char *name2, size_t len2);
extern int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2);
-extern void *read_object_with_reference(const unsigned char *sha1,
+extern void *read_object_with_reference(const struct object_id *oid,
const char *required_type,
unsigned long *size,
- unsigned char *sha1_ret);
+ struct object_id *oid_ret);
extern struct object *peel_to_type(const char *name, int namelen,
struct object *o, enum object_type);
extern void schedule_dir_for_removal(const char *name, int len);
extern void remove_scheduled_dirs(void);
-extern struct alternate_object_database {
- struct alternate_object_database *next;
-
- /* see alt_scratch_buf() */
- 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 char *compute_alternate_path(const char *path, struct strbuf *err);
-typedef int alt_odb_fn(struct alternate_object_database *, void *);
-extern int foreach_alt_odb(alt_odb_fn, void*);
-
-/*
- * Allocate a "struct alternate_object_database" but do _not_ actually
- * add it to the list of alternates.
- */
-struct alternate_object_database *alloc_alt_odb(const char *dir);
-
-/*
- * Add the directory to the on-disk alternates file; the new entry will also
- * take effect in the current process.
- */
-extern void add_to_alternates_file(const char *dir);
-
-/*
- * Add the directory to the in-memory list of alternates (along with any
- * recursive alternates it points to), but do not modify the on-disk alternates
- * file.
- */
-extern void add_to_alternates_memory(const char *dir);
-
-/*
- * Returns a scratch strbuf pre-filled with the alternate object directory,
- * including a trailing slash, which can be used to access paths in the
- * alternate. Always use this over direct access to alt->scratch, as it
- * cleans up any previous use of the scratch buffer.
- */
-extern struct strbuf *alt_scratch_buf(struct alternate_object_database *alt);
-
struct pack_window {
struct pack_window *next;
unsigned char *base;
unsigned int inuse_cnt;
};
-extern struct packed_git {
- struct packed_git *next;
- struct pack_window *windows;
- off_t pack_size;
- const void *index_data;
- size_t index_size;
- uint32_t num_objects;
- uint32_t num_bad_objects;
- unsigned char *bad_object_sha1;
- int index_version;
- time_t mtime;
- int pack_fd;
- unsigned pack_local:1,
- pack_keep:1,
- 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;
-
-/*
- * A most-recently-used ordered version of the packed_git list, which can
- * be iterated instead of packed_git (and marked via mru_mark).
- */
-extern struct mru packed_git_mru;
-
struct pack_entry {
off_t offset;
unsigned char sha1[20];
* 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);
+extern int odb_mkstemp(struct strbuf *temp_filename, const char *pattern);
/*
* Create a pack .keep file named "name" (which should generally be the output
unsigned long *sizep;
off_t *disk_sizep;
unsigned char *delta_base_sha1;
- struct strbuf *typename;
+ struct strbuf *type_name;
void **contentp;
/* Response */
#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);
+/* Do not check loose object */
+#define OBJECT_INFO_IGNORE_LOOSE 16
+extern int oid_object_info_extended(const struct object_id *, struct object_info *, unsigned flags);
+
+/*
+ * Set this to 0 to prevent sha1_object_info_extended() from fetching missing
+ * blobs. This has a difference only if extensions.partialClone is set.
+ *
+ * Its default value is 1.
+ */
+extern int fetch_if_missing;
/* Dumb servers support */
extern int update_server_info(int);