#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;
*/
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
/* 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);
* 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);
* 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
{
char *r = prefix_path_gently(prefix, len, NULL, path);
if (!r)
- die("'%s' is outside repository", path);
+ die(_("'%s' is outside repository"), path);
return r;
}
free(to_free);
return 0; /* file does not exist */
}
- die_errno("failed to stat '%s'", arg);
+ die_errno(_("failed to stat '%s'"), arg);
}
static void NORETURN die_verify_filename(const char *prefix,
int diagnose_misspelt_rev)
{
if (*arg == '-')
- die("option '%s' must come before non-option arguments", arg);
+ die(_("option '%s' must come before non-option arguments"), arg);
if (looks_like_pathspec(arg) || check_filename(prefix, arg))
return;
die_verify_filename(prefix, arg, diagnose_misspelt_rev);
return;
if (work_tree_config_is_bogus)
- die("unable to set up work tree using invalid config");
+ die(_("unable to set up work tree using invalid config"));
work_tree = get_git_work_tree();
git_dir = get_git_dir();
if (!is_absolute_path(git_dir))
git_dir = real_path(get_git_dir());
if (!work_tree || chdir(work_tree))
- die("This operation must be run in a work tree");
+ die(_("this operation must be run in a work tree"));
/*
* Make sure subsequent git processes find correct worktree
/* non-fatal; follow return path */
break;
case READ_GITFILE_ERR_OPEN_FAILED:
- die_errno("Error opening '%s'", path);
+ die_errno(_("error opening '%s'"), path);
case READ_GITFILE_ERR_TOO_LARGE:
- die("Too large to be a .git file: '%s'", path);
+ die(_("too large to be a .git file: '%s'"), path);
case READ_GITFILE_ERR_READ_FAILED:
- die("Error reading %s", path);
+ die(_("error reading %s"), path);
case READ_GITFILE_ERR_INVALID_FORMAT:
- die("Invalid gitfile format: %s", path);
+ die(_("invalid gitfile format: %s"), path);
case READ_GITFILE_ERR_NO_PATH:
- die("No path in gitfile: %s", path);
+ die(_("no path in gitfile: %s"), path);
case READ_GITFILE_ERR_NOT_A_REPO:
- die("Not a git repository: %s", dir);
+ die(_("not a git repository: %s"), dir);
default:
die("BUG: unknown error code");
}
int offset;
if (PATH_MAX - 40 < strlen(gitdirenv))
- die("'$%s' too big", GIT_DIR_ENVIRONMENT);
+ die(_("'$%s' too big"), GIT_DIR_ENVIRONMENT);
gitfile = (char*)read_gitfile(gitdirenv);
if (gitfile) {
free(gitfile);
return NULL;
}
- die("Not a git repository: '%s'", gitdirenv);
+ die(_("not a git repository: '%s'"), gitdirenv);
}
if (check_repository_format_gently(gitdirenv, repo_fmt, nongit_ok)) {
else {
char *core_worktree;
if (chdir(gitdirenv))
- die_errno("Could not chdir to '%s'", gitdirenv);
+ die_errno(_("cannot chdir to '%s'"), gitdirenv);
if (chdir(git_work_tree_cfg))
- die_errno("Could not chdir to '%s'", git_work_tree_cfg);
+ die_errno(_("cannot chdir to '%s'"), git_work_tree_cfg);
core_worktree = xgetcwd();
if (chdir(cwd->buf))
- die_errno("Could not come back to cwd");
+ die_errno(_("cannot come back to cwd"));
set_git_work_tree(core_worktree);
free(core_worktree);
}
if (offset >= 0) { /* cwd inside worktree? */
set_git_dir(real_path(gitdirenv));
if (chdir(worktree))
- die_errno("Could not chdir to '%s'", worktree);
+ die_errno(_("cannot chdir to '%s'"), worktree);
strbuf_addch(cwd, '/');
free(gitfile);
return cwd->buf + offset;
if (offset != cwd->len && !is_absolute_path(gitdir))
gitdir = to_free = real_pathdup(gitdir, 1);
if (chdir(cwd->buf))
- die_errno("Could not come back to cwd");
+ die_errno(_("cannot come back to cwd"));
ret = setup_explicit_git_dir(gitdir, cwd, repo_fmt, nongit_ok);
free(to_free);
return ret;
if (is_bare_repository_cfg > 0) {
set_git_dir(offset == cwd->len ? gitdir : real_path(gitdir));
if (chdir(cwd->buf))
- die_errno("Could not come back to cwd");
+ die_errno(_("cannot come back to cwd"));
return NULL;
}
gitdir = offset == cwd->len ? "." : xmemdupz(cwd->buf, offset);
if (chdir(cwd->buf))
- die_errno("Could not come back to cwd");
+ die_errno(_("cannot come back to cwd"));
return setup_explicit_git_dir(gitdir, cwd, repo_fmt, nongit_ok);
}
inside_work_tree = 0;
if (offset != cwd->len) {
if (chdir(cwd->buf))
- die_errno("Cannot come back to cwd");
+ die_errno(_("cannot come back to cwd"));
root_len = offset_1st_component(cwd->buf);
strbuf_setlen(cwd, offset > root_len ? offset : root_len);
set_git_dir(cwd->buf);
static const char *setup_nongit(const char *cwd, int *nongit_ok)
{
if (!nongit_ok)
- die(_("Not a git repository (or any of the parent directories): %s"), DEFAULT_GIT_DIR_ENVIRONMENT);
+ die(_("not a git repository (or any of the parent directories): %s"), DEFAULT_GIT_DIR_ENVIRONMENT);
if (chdir(cwd))
- die_errno(_("Cannot come back to cwd"));
+ die_errno(_("cannot come back to cwd"));
*nongit_ok = 1;
return NULL;
}
{
struct stat buf;
if (stat(path, &buf)) {
- die_errno("failed to stat '%*s%s%s'",
+ die_errno(_("failed to stat '%*s%s%s'"),
prefix_len,
prefix ? prefix : "",
prefix ? "/" : "", path);
break;
case GIT_DIR_DISCOVERED:
if (dir.len < cwd.len && chdir(dir.buf))
- die(_("Cannot change to '%s'"), dir.buf);
+ die(_("cannot change to '%s'"), dir.buf);
prefix = setup_discovered_git_dir(gitdir.buf, &cwd, dir.len,
&repo_fmt, nongit_ok);
break;
case GIT_DIR_BARE:
if (dir.len < cwd.len && chdir(dir.buf))
- die(_("Cannot change to '%s'"), dir.buf);
+ die(_("cannot change to '%s'"), dir.buf);
prefix = setup_bare_git_dir(&cwd, dir.len, &repo_fmt, nongit_ok);
break;
case GIT_DIR_HIT_CEILING:
strbuf_release(&dir);
return NULL;
}
- die(_("Not a git repository (or any parent up to mount point %s)\n"
+ die(_("not a git repository (or any parent up to mount point %s)\n"
"Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set)."),
dir.buf);
default:
const char *gitdir = getenv(GIT_DIR_ENVIRONMENT);
if (!gitdir)
gitdir = DEFAULT_GIT_DIR_ENVIRONMENT;
- repo_set_gitdir(the_repository, gitdir);
- setup_git_env();
+ setup_git_env(gitdir);
}
if (startup_info->have_repository)
repo_set_hash_algo(the_repository, repo_fmt.hash_algo);
/* A filemode value was given: 0xxx */
if ((i & 0600) != 0600)
- die(_("Problem with core.sharedRepository filemode value "
+ die(_("problem with core.sharedRepository filemode value "
"(0%.3o).\nThe owner of files must always have "
"read and write permissions."), i);
while (fd != -1 && fd < 2)
fd = dup(fd);
if (fd == -1)
- die_errno("open /dev/null or dup failed");
+ die_errno(_("open /dev/null or dup failed"));
if (fd > 2)
close(fd);
}
case 0:
break;
case -1:
- die_errno("fork failed");
+ die_errno(_("fork failed"));
default:
exit(0);
}
if (setsid() == -1)
- die_errno("setsid failed");
+ die_errno(_("setsid failed"));
close(0);
close(1);
close(2);
#include "packfile.h"
#include "fetch-object.h"
+/* The maximum size for an object header. */
+#define MAX_HEADER_LEN 32
+
const unsigned char null_sha1[GIT_MAX_RAWSZ];
const struct object_id null_oid;
const struct object_id empty_tree_oid = {
EMPTY_BLOB_SHA1_BIN_LITERAL
};
-static void git_hash_sha1_init(void *ctx)
+static void git_hash_sha1_init(git_hash_ctx *ctx)
{
- git_SHA1_Init((git_SHA_CTX *)ctx);
+ git_SHA1_Init(&ctx->sha1);
}
-static void git_hash_sha1_update(void *ctx, const void *data, size_t len)
+static void git_hash_sha1_update(git_hash_ctx *ctx, const void *data, size_t len)
{
- git_SHA1_Update((git_SHA_CTX *)ctx, data, len);
+ git_SHA1_Update(&ctx->sha1, data, len);
}
-static void git_hash_sha1_final(unsigned char *hash, void *ctx)
+static void git_hash_sha1_final(unsigned char *hash, git_hash_ctx *ctx)
{
- git_SHA1_Final(hash, (git_SHA_CTX *)ctx);
+ git_SHA1_Final(hash, &ctx->sha1);
}
-static void git_hash_unknown_init(void *ctx)
+static void git_hash_unknown_init(git_hash_ctx *ctx)
{
die("trying to init unknown hash");
}
-static void git_hash_unknown_update(void *ctx, const void *data, size_t len)
+static void git_hash_unknown_update(git_hash_ctx *ctx, const void *data, size_t len)
{
die("trying to update unknown hash");
}
-static void git_hash_unknown_final(unsigned char *hash, void *ctx)
+static void git_hash_unknown_final(unsigned char *hash, git_hash_ctx *ctx)
{
die("trying to finalize unknown hash");
}
0x00000000,
0,
0,
- 0,
git_hash_unknown_init,
git_hash_unknown_update,
git_hash_unknown_final,
"sha-1",
/* "sha1", big-endian */
0x73686131,
- sizeof(git_SHA_CTX),
GIT_SHA1_RAWSZ,
GIT_SHA1_HEXSZ,
git_hash_sha1_init,
void prepare_alt_odb(void)
{
- const char *alt;
-
if (alt_odb_tail)
return;
- alt = getenv(ALTERNATE_DB_ENVIRONMENT);
-
alt_odb_tail = &alt_odb_list;
- link_alt_odb_entries(alt, PATH_SEP, NULL, 0);
+ link_alt_odb_entries(the_repository->alternate_db, PATH_SEP, NULL, 0);
read_info_alternates(get_object_directory(), 0);
}
* With "map" == NULL, try reading the object named with "sha1" using
* the streaming interface and rehash it to do the same.
*/
-int check_sha1_signature(const unsigned char *sha1, void *map,
- unsigned long size, const char *type)
+int check_object_signature(const struct object_id *oid, void *map,
+ unsigned long size, const char *type)
{
- unsigned char real_sha1[20];
+ struct object_id real_oid;
enum object_type obj_type;
struct git_istream *st;
- git_SHA_CTX c;
- char hdr[32];
+ git_hash_ctx c;
+ char hdr[MAX_HEADER_LEN];
int hdrlen;
if (map) {
- hash_sha1_file(map, size, type, real_sha1);
- return hashcmp(sha1, real_sha1) ? -1 : 0;
+ hash_object_file(map, size, type, &real_oid);
+ return oidcmp(oid, &real_oid) ? -1 : 0;
}
- st = open_istream(sha1, &obj_type, &size, NULL);
+ st = open_istream(oid, &obj_type, &size, NULL);
if (!st)
return -1;
/* Generate the header */
- hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", typename(obj_type), size) + 1;
+ hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", type_name(obj_type), size) + 1;
/* Sha1.. */
- git_SHA1_Init(&c);
- git_SHA1_Update(&c, hdr, hdrlen);
+ the_hash_algo->init_fn(&c);
+ the_hash_algo->update_fn(&c, hdr, hdrlen);
for (;;) {
char buf[1024 * 16];
ssize_t readlen = read_istream(st, buf, sizeof(buf));
}
if (!readlen)
break;
- git_SHA1_Update(&c, buf, readlen);
+ the_hash_algo->update_fn(&c, buf, readlen);
}
- git_SHA1_Final(real_sha1, &c);
+ the_hash_algo->final_fn(real_oid.hash, &c);
close_istream(st);
- return hashcmp(sha1, real_sha1) ? -1 : 0;
+ return oidcmp(oid, &real_oid) ? -1 : 0;
}
int git_open_cloexec(const char *name, int flags)
}
type = type_from_string_gently(type_buf, type_len, 1);
- if (oi->typename)
- strbuf_add(oi->typename, type_buf, type_len);
+ if (oi->type_name)
+ strbuf_add(oi->type_name, type_buf, type_len);
/*
* Set type to 0 if its an unknown object and
* we're obtaining the type using '--allow-unknown-type'
unsigned long mapsize;
void *map;
git_zstream stream;
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
struct strbuf hdrbuf = STRBUF_INIT;
unsigned long size_scratch;
* return value implicitly indicates whether the
* object even exists.
*/
- if (!oi->typep && !oi->typename && !oi->sizep && !oi->contentp) {
+ if (!oi->typep && !oi->type_name && !oi->sizep && !oi->contentp) {
const char *path;
struct stat st;
if (stat_sha1_file(sha1, &st, &path) < 0)
int fetch_if_missing = 1;
-int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, unsigned flags)
+int oid_object_info_extended(const struct object_id *oid, struct object_info *oi, unsigned flags)
{
static struct object_info blank_oi = OBJECT_INFO_INIT;
struct pack_entry e;
int rtype;
- const unsigned char *real = (flags & OBJECT_INFO_LOOKUP_REPLACE) ?
- lookup_replace_object(sha1) :
- sha1;
+ const struct object_id *real = oid;
int already_retried = 0;
- if (is_null_sha1(real))
+ if (flags & OBJECT_INFO_LOOKUP_REPLACE)
+ real = lookup_replace_object(oid);
+
+ if (is_null_oid(real))
return -1;
if (!oi)
oi = &blank_oi;
if (!(flags & OBJECT_INFO_SKIP_CACHED)) {
- struct cached_object *co = find_cached_object(real);
+ struct cached_object *co = find_cached_object(real->hash);
if (co) {
if (oi->typep)
*(oi->typep) = co->type;
*(oi->disk_sizep) = 0;
if (oi->delta_base_sha1)
hashclr(oi->delta_base_sha1);
- if (oi->typename)
- strbuf_addstr(oi->typename, typename(co->type));
+ if (oi->type_name)
+ strbuf_addstr(oi->type_name, type_name(co->type));
if (oi->contentp)
*oi->contentp = xmemdupz(co->buf, co->size);
oi->whence = OI_CACHED;
}
while (1) {
- if (find_pack_entry(real, &e))
+ if (find_pack_entry(real->hash, &e))
break;
+ if (flags & OBJECT_INFO_IGNORE_LOOSE)
+ return -1;
+
/* Most likely it's a loose object. */
- if (!sha1_loose_object_info(real, oi, flags))
+ if (!sha1_loose_object_info(real->hash, oi, flags))
return 0;
/* Not a loose object; someone else may have just packed it. */
- reprepare_packed_git();
- if (find_pack_entry(real, &e))
- break;
+ if (!(flags & OBJECT_INFO_QUICK)) {
+ reprepare_packed_git();
+ if (find_pack_entry(real->hash, &e))
+ break;
+ }
/* Check if it is a missing object */
if (fetch_if_missing && repository_format_partial_clone &&
* TODO Investigate haveing fetch_object() return
* TODO error/success and stopping the music here.
*/
- fetch_object(repository_format_partial_clone, real);
+ fetch_object(repository_format_partial_clone, real->hash);
already_retried = 1;
continue;
}
return 0;
rtype = packed_object_info(e.p, e.offset, oi);
if (rtype < 0) {
- mark_bad_packed_object(e.p, real);
- return sha1_object_info_extended(real, oi, 0);
+ mark_bad_packed_object(e.p, real->hash);
+ return oid_object_info_extended(real, oi, 0);
} else if (oi->whence == OI_PACKED) {
oi->u.packed.offset = e.offset;
oi->u.packed.pack = e.p;
}
/* returns enum object_type or negative */
-int sha1_object_info(const unsigned char *sha1, unsigned long *sizep)
+int oid_object_info(const struct object_id *oid, unsigned long *sizep)
{
enum object_type type;
struct object_info oi = OBJECT_INFO_INIT;
oi.typep = &type;
oi.sizep = sizep;
- if (sha1_object_info_extended(sha1, &oi,
- OBJECT_INFO_LOOKUP_REPLACE) < 0)
+ if (oid_object_info_extended(oid, &oi,
+ OBJECT_INFO_LOOKUP_REPLACE) < 0)
return -1;
return type;
}
static void *read_object(const unsigned char *sha1, enum object_type *type,
unsigned long *size)
{
+ struct object_id oid;
struct object_info oi = OBJECT_INFO_INIT;
void *content;
oi.typep = type;
oi.sizep = size;
oi.contentp = &content;
- if (sha1_object_info_extended(sha1, &oi, 0) < 0)
+ hashcpy(oid.hash, sha1);
+
+ if (oid_object_info_extended(&oid, &oi, 0) < 0)
return NULL;
return content;
}
-int pretend_sha1_file(void *buf, unsigned long len, enum object_type type,
- unsigned char *sha1)
+int pretend_object_file(void *buf, unsigned long len, enum object_type type,
+ struct object_id *oid)
{
struct cached_object *co;
- hash_sha1_file(buf, len, typename(type), sha1);
- if (has_sha1_file(sha1) || find_cached_object(sha1))
+ hash_object_file(buf, len, type_name(type), oid);
+ if (has_sha1_file(oid->hash) || find_cached_object(oid->hash))
return 0;
ALLOC_GROW(cached_objects, cached_object_nr + 1, cached_object_alloc);
co = &cached_objects[cached_object_nr++];
co->type = type;
co->buf = xmalloc(len);
memcpy(co->buf, buf, len);
- hashcpy(co->sha1, sha1);
+ hashcpy(co->sha1, oid->hash);
return 0;
}
* deal with them should arrange to call read_object() and give error
* messages themselves.
*/
-void *read_sha1_file_extended(const unsigned char *sha1,
- enum object_type *type,
- unsigned long *size,
- int lookup_replace)
+void *read_object_file_extended(const struct object_id *oid,
+ enum object_type *type,
+ unsigned long *size,
+ int lookup_replace)
{
void *data;
const struct packed_git *p;
const char *path;
struct stat st;
- const unsigned char *repl = lookup_replace ? lookup_replace_object(sha1)
- : sha1;
+ const struct object_id *repl = lookup_replace ? lookup_replace_object(oid)
+ : oid;
errno = 0;
- data = read_object(repl, type, size);
+ data = read_object(repl->hash, type, size);
if (data)
return data;
if (errno && errno != ENOENT)
- die_errno("failed to read object %s", sha1_to_hex(sha1));
+ die_errno("failed to read object %s", oid_to_hex(oid));
/* die if we replaced an object with one that does not exist */
- if (repl != sha1)
+ if (repl != oid)
die("replacement %s not found for %s",
- sha1_to_hex(repl), sha1_to_hex(sha1));
+ oid_to_hex(repl), oid_to_hex(oid));
- if (!stat_sha1_file(repl, &st, &path))
+ if (!stat_sha1_file(repl->hash, &st, &path))
die("loose object %s (stored in %s) is corrupt",
- sha1_to_hex(repl), path);
+ oid_to_hex(repl), path);
- if ((p = has_packed_and_bad(repl)) != NULL)
+ if ((p = has_packed_and_bad(repl->hash)) != NULL)
die("packed object %s (stored in %s) is corrupt",
- sha1_to_hex(repl), p->pack_name);
+ oid_to_hex(repl), p->pack_name);
return NULL;
}
-void *read_object_with_reference(const unsigned char *sha1,
+void *read_object_with_reference(const struct object_id *oid,
const char *required_type_name,
unsigned long *size,
- unsigned char *actual_sha1_return)
+ struct object_id *actual_oid_return)
{
enum object_type type, required_type;
void *buffer;
unsigned long isize;
- unsigned char actual_sha1[20];
+ struct object_id actual_oid;
required_type = type_from_string(required_type_name);
- hashcpy(actual_sha1, sha1);
+ oidcpy(&actual_oid, oid);
while (1) {
int ref_length = -1;
const char *ref_type = NULL;
- buffer = read_sha1_file(actual_sha1, &type, &isize);
+ buffer = read_object_file(&actual_oid, &type, &isize);
if (!buffer)
return NULL;
if (type == required_type) {
*size = isize;
- if (actual_sha1_return)
- hashcpy(actual_sha1_return, actual_sha1);
+ if (actual_oid_return)
+ oidcpy(actual_oid_return, &actual_oid);
return buffer;
}
/* Handle references */
}
ref_length = strlen(ref_type);
- if (ref_length + 40 > isize ||
+ if (ref_length + GIT_SHA1_HEXSZ > isize ||
memcmp(buffer, ref_type, ref_length) ||
- get_sha1_hex((char *) buffer + ref_length, actual_sha1)) {
+ get_oid_hex((char *) buffer + ref_length, &actual_oid)) {
free(buffer);
return NULL;
}
free(buffer);
/* Now we have the ID of the referred-to object in
- * actual_sha1. Check again. */
+ * actual_oid. Check again. */
}
}
-static void write_sha1_file_prepare(const void *buf, unsigned long len,
- const char *type, unsigned char *sha1,
- char *hdr, int *hdrlen)
+static void write_object_file_prepare(const void *buf, unsigned long len,
+ const char *type, struct object_id *oid,
+ char *hdr, int *hdrlen)
{
- git_SHA_CTX c;
+ git_hash_ctx c;
/* Generate the header */
*hdrlen = xsnprintf(hdr, *hdrlen, "%s %lu", type, len)+1;
/* Sha1.. */
- git_SHA1_Init(&c);
- git_SHA1_Update(&c, hdr, *hdrlen);
- git_SHA1_Update(&c, buf, len);
- git_SHA1_Final(sha1, &c);
+ the_hash_algo->init_fn(&c);
+ the_hash_algo->update_fn(&c, hdr, *hdrlen);
+ the_hash_algo->update_fn(&c, buf, len);
+ the_hash_algo->final_fn(oid->hash, &c);
}
/*
return 0;
}
-int hash_sha1_file(const void *buf, unsigned long len, const char *type,
- unsigned char *sha1)
+int hash_object_file(const void *buf, unsigned long len, const char *type,
+ struct object_id *oid)
{
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
int hdrlen = sizeof(hdr);
- write_sha1_file_prepare(buf, len, type, sha1, hdr, &hdrlen);
+ write_object_file_prepare(buf, len, type, oid, hdr, &hdrlen);
return 0;
}
return fd;
}
-static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen,
- const void *buf, unsigned long len, time_t mtime)
+static int write_loose_object(const struct object_id *oid, char *hdr,
+ int hdrlen, const void *buf, unsigned long len,
+ time_t mtime)
{
int fd, ret;
unsigned char compressed[4096];
git_zstream stream;
- git_SHA_CTX c;
- unsigned char parano_sha1[20];
+ git_hash_ctx c;
+ struct object_id parano_oid;
static struct strbuf tmp_file = STRBUF_INIT;
static struct strbuf filename = STRBUF_INIT;
strbuf_reset(&filename);
- sha1_file_name(&filename, sha1);
+ sha1_file_name(&filename, oid->hash);
fd = create_tmpfile(&tmp_file, filename.buf);
if (fd < 0) {
git_deflate_init(&stream, zlib_compression_level);
stream.next_out = compressed;
stream.avail_out = sizeof(compressed);
- git_SHA1_Init(&c);
+ the_hash_algo->init_fn(&c);
/* First header.. */
stream.next_in = (unsigned char *)hdr;
stream.avail_in = hdrlen;
while (git_deflate(&stream, 0) == Z_OK)
; /* nothing */
- git_SHA1_Update(&c, hdr, hdrlen);
+ the_hash_algo->update_fn(&c, hdr, hdrlen);
/* Then the data itself.. */
stream.next_in = (void *)buf;
do {
unsigned char *in0 = stream.next_in;
ret = git_deflate(&stream, Z_FINISH);
- git_SHA1_Update(&c, in0, stream.next_in - in0);
+ the_hash_algo->update_fn(&c, in0, stream.next_in - in0);
if (write_buffer(fd, compressed, stream.next_out - compressed) < 0)
die("unable to write sha1 file");
stream.next_out = compressed;
} while (ret == Z_OK);
if (ret != Z_STREAM_END)
- die("unable to deflate new object %s (%d)", sha1_to_hex(sha1), ret);
+ die("unable to deflate new object %s (%d)", oid_to_hex(oid),
+ ret);
ret = git_deflate_end_gently(&stream);
if (ret != Z_OK)
- die("deflateEnd on object %s failed (%d)", sha1_to_hex(sha1), ret);
- git_SHA1_Final(parano_sha1, &c);
- if (hashcmp(sha1, parano_sha1) != 0)
- die("confused by unstable object source data for %s", sha1_to_hex(sha1));
+ die("deflateEnd on object %s failed (%d)", oid_to_hex(oid),
+ ret);
+ the_hash_algo->final_fn(parano_oid.hash, &c);
+ if (oidcmp(oid, ¶no_oid) != 0)
+ die("confused by unstable object source data for %s",
+ oid_to_hex(oid));
close_sha1_file(fd);
return 1;
}
-int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1)
+int write_object_file(const void *buf, unsigned long len, const char *type,
+ struct object_id *oid)
{
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
int hdrlen = sizeof(hdr);
/* Normally if we have it in the pack then we do not bother writing
* it out into .git/objects/??/?{38} file.
*/
- write_sha1_file_prepare(buf, len, type, sha1, hdr, &hdrlen);
- if (freshen_packed_object(sha1) || freshen_loose_object(sha1))
+ write_object_file_prepare(buf, len, type, oid, hdr, &hdrlen);
+ if (freshen_packed_object(oid->hash) || freshen_loose_object(oid->hash))
return 0;
- return write_loose_object(sha1, hdr, hdrlen, buf, len, 0);
+ return write_loose_object(oid, hdr, hdrlen, buf, len, 0);
}
-int hash_sha1_file_literally(const void *buf, unsigned long len, const char *type,
- struct object_id *oid, unsigned flags)
+int hash_object_file_literally(const void *buf, unsigned long len,
+ const char *type, struct object_id *oid,
+ unsigned flags)
{
char *header;
int hdrlen, status = 0;
/* type string, SP, %lu of the length plus NUL must fit this */
- hdrlen = strlen(type) + 32;
+ hdrlen = strlen(type) + MAX_HEADER_LEN;
header = xmalloc(hdrlen);
- write_sha1_file_prepare(buf, len, type, oid->hash, header, &hdrlen);
+ write_object_file_prepare(buf, len, type, oid, header, &hdrlen);
if (!(flags & HASH_WRITE_OBJECT))
goto cleanup;
if (freshen_packed_object(oid->hash) || freshen_loose_object(oid->hash))
goto cleanup;
- status = write_loose_object(oid->hash, header, hdrlen, buf, len, 0);
+ status = write_loose_object(oid, header, hdrlen, buf, len, 0);
cleanup:
free(header);
return status;
}
-int force_object_loose(const unsigned char *sha1, time_t mtime)
+int force_object_loose(const struct object_id *oid, time_t mtime)
{
void *buf;
unsigned long len;
enum object_type type;
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
int hdrlen;
int ret;
- if (has_loose_object(sha1))
+ if (has_loose_object(oid->hash))
return 0;
- buf = read_object(sha1, &type, &len);
+ buf = read_object(oid->hash, &type, &len);
if (!buf)
- return error("cannot read sha1_file for %s", sha1_to_hex(sha1));
- hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", typename(type), len) + 1;
- ret = write_loose_object(sha1, hdr, hdrlen, buf, len, mtime);
+ return error("cannot read sha1_file for %s", oid_to_hex(oid));
+ hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", type_name(type), len) + 1;
+ ret = write_loose_object(oid, hdr, hdrlen, buf, len, mtime);
free(buf);
return ret;
int has_sha1_file_with_flags(const unsigned char *sha1, int flags)
{
+ struct object_id oid;
if (!startup_info->have_repository)
return 0;
- return sha1_object_info_extended(sha1, NULL,
- flags | OBJECT_INFO_SKIP_CACHED) >= 0;
+ hashcpy(oid.hash, sha1);
+ return oid_object_info_extended(&oid, NULL,
+ flags | OBJECT_INFO_SKIP_CACHED) >= 0;
}
int has_object_file(const struct object_id *oid)
}
if (write_object)
- ret = write_sha1_file(buf, size, typename(type), oid->hash);
+ ret = write_object_file(buf, size, type_name(type), oid);
else
- ret = hash_sha1_file(buf, size, typename(type), oid->hash);
+ ret = hash_object_file(buf, size, type_name(type), oid);
if (re_allocated)
free(buf);
return ret;
get_conv_flags(flags));
if (write_object)
- ret = write_sha1_file(sbuf.buf, sbuf.len, typename(OBJ_BLOB),
- oid->hash);
+ ret = write_object_file(sbuf.buf, sbuf.len, type_name(OBJ_BLOB),
+ oid);
else
- ret = hash_sha1_file(sbuf.buf, sbuf.len, typename(OBJ_BLOB),
- oid->hash);
+ ret = hash_object_file(sbuf.buf, sbuf.len, type_name(OBJ_BLOB),
+ oid);
strbuf_release(&sbuf);
return ret;
}
enum object_type type, const char *path,
unsigned flags)
{
- return index_bulk_checkin(oid->hash, fd, size, type, path, flags);
+ return index_bulk_checkin(oid, fd, size, type, path, flags);
}
int index_fd(struct object_id *oid, int fd, struct stat *st,
if (strbuf_readlink(&sb, path, st->st_size))
return error_errno("readlink(\"%s\")", path);
if (!(flags & HASH_WRITE_OBJECT))
- hash_sha1_file(sb.buf, sb.len, blob_type, oid->hash);
- else if (write_sha1_file(sb.buf, sb.len, blob_type, oid->hash))
+ hash_object_file(sb.buf, sb.len, blob_type, oid);
+ else if (write_object_file(sb.buf, sb.len, blob_type, oid))
rc = error("%s: failed to insert into database", path);
strbuf_release(&sb);
break;
return 0;
}
-void assert_sha1_type(const unsigned char *sha1, enum object_type expect)
+void assert_oid_type(const struct object_id *oid, enum object_type expect)
{
- enum object_type type = sha1_object_info(sha1, NULL);
+ enum object_type type = oid_object_info(oid, NULL);
if (type < 0)
- die("%s is not a valid object", sha1_to_hex(sha1));
+ die("%s is not a valid object", oid_to_hex(oid));
if (type != expect)
- die("%s is not a valid '%s' object", sha1_to_hex(sha1),
- typename(expect));
+ die("%s is not a valid '%s' object", oid_to_hex(oid),
+ type_name(expect));
}
int for_each_file_in_obj_subdir(unsigned int subdir_nr,
const char *path,
const unsigned char *expected_sha1)
{
- git_SHA_CTX c;
+ git_hash_ctx c;
unsigned char real_sha1[GIT_MAX_RAWSZ];
unsigned char buf[4096];
unsigned long total_read;
int status = Z_OK;
- git_SHA1_Init(&c);
- git_SHA1_Update(&c, hdr, stream->total_out);
+ the_hash_algo->init_fn(&c);
+ the_hash_algo->update_fn(&c, hdr, stream->total_out);
/*
* We already read some bytes into hdr, but the ones up to the NUL
if (size - total_read < stream->avail_out)
stream->avail_out = size - total_read;
status = git_inflate(stream, Z_FINISH);
- git_SHA1_Update(&c, buf, stream->next_out - buf);
+ the_hash_algo->update_fn(&c, buf, stream->next_out - buf);
total_read += stream->next_out - buf;
}
git_inflate_end(stream);
return -1;
}
- git_SHA1_Final(real_sha1, &c);
+ the_hash_algo->final_fn(real_sha1, &c);
if (hashcmp(expected_sha1, real_sha1)) {
error("sha1 mismatch for %s (expected %s)", path,
sha1_to_hex(expected_sha1));
}
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)
void *map = NULL;
unsigned long mapsize;
git_zstream stream;
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
*contents = NULL;
}
if (*type == OBJ_BLOB) {
- if (check_stream_sha1(&stream, hdr, *size, path, expected_sha1) < 0)
+ if (check_stream_sha1(&stream, hdr, *size, path, expected_oid->hash) < 0)
goto out;
} else {
- *contents = unpack_sha1_rest(&stream, hdr, *size, expected_sha1);
+ *contents = unpack_sha1_rest(&stream, hdr, *size, expected_oid->hash);
if (!*contents) {
error("unable to unpack contents of %s", path);
git_inflate_end(&stream);
goto out;
}
- if (check_sha1_signature(expected_sha1, *contents,
- *size, typename(*type))) {
+ if (check_object_signature(expected_oid, *contents,
+ *size, type_name(*type))) {
error("sha1 mismatch for %s (expected %s)", path,
- sha1_to_hex(expected_sha1));
+ oid_to_hex(expected_oid));
free(*contents);
goto out;
}