The loose object access code in sha1-file.c is some of the oldest in
Git, and could use some modernizing. It mostly uses "unsigned char *"
for object ids, which these days should be "struct object_id".
It also uses the term "sha1_file" in many functions, which is confusing.
The term "loose_objects" is much better. It clearly distinguishes
them from packed objects (which didn't even exist back when the name
"sha1_file" came into being). And it also distinguishes it from the
checksummed-file concept in csum-file.c (which until recently was
actually called "struct sha1file"!).
This patch converts the functions {open,close,map,stat}_sha1_file() into
open_loose_object(), etc, and switches their sha1 arguments for
object_id structs. Similarly, path functions like fill_sha1_path()
become fill_loose_path() and use object_ids.
The function sha1_loose_object_info() already says "loose", so we can
just drop the "sha1" (and teach it to use object_id).
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
http-walker.c | 2 +-
http.c | 4 +--
object-store.h | 8 +++--
sha1-file.c | 81 +++++++++++++++++++++++++-------------------------
streaming.c | 4 +--
5 files changed, 51 insertions(+), 48 deletions(-)
diff --git a/http-walker.c b/http-walker.c
index 856716c63d..29b59e2fe0 100644
--- a/http-walker.c
+++ b/http-walker.c
@@ -547,7 +547,7 @@ static int fetch_object(struct walker *walker, unsigned char *sha1)
ret = error("File %s has bad hash", hex);
} else if (req->rename < 0) {
struct strbuf buf = STRBUF_INIT;
- loose_object_path(the_repository, &buf, req->oid.hash);
+ loose_object_path(the_repository, &buf, &req->oid);
ret = error("unable to write sha1 filename %s", buf.buf);
strbuf_release(&buf);
}
diff --git a/http.c b/http.c
index 8d42154792..43d06dd074 100644
--- a/http.c
+++ b/http.c
@@ -2353,7 +2353,7 @@ struct http_object_request *new_http_object_request(const char *base_url,
oidcpy(&freq->oid, oid);
freq->localfile = -1;
- loose_object_path(the_repository, &filename, oid->hash);
+ loose_object_path(the_repository, &filename, oid);
strbuf_addf(&freq->tmpfile, "%s.temp", filename.buf);
strbuf_addf(&prevfile, "%s.prev", filename.buf);
@@ -2504,7 +2504,7 @@ int finish_http_object_request(struct http_object_request *freq)
unlink_or_warn(freq->tmpfile.buf);
return -1;
}
- loose_object_path(the_repository, &filename, freq->oid.hash);
+ loose_object_path(the_repository, &filename, &freq->oid);
freq->rename = finalize_object_file(freq->tmpfile.buf, filename.buf);
strbuf_release(&filename);
diff --git a/object-store.h b/object-store.h
index 2fb6c0e4db..6b1c408753 100644
--- a/object-store.h
+++ b/object-store.h
@@ -161,11 +161,13 @@ void raw_object_store_clear(struct raw_object_store *o);
/*
* Put in `buf` the name of the file in the local object database that
- * would be used to store a loose object with the specified sha1.
+ * would be used to store a loose object with the specified oid.
*/
-const char *loose_object_path(struct repository *r, struct strbuf *buf, const unsigned char *sha1);
+const char *loose_object_path(struct repository *r, struct strbuf *buf,
+ const struct object_id *oid);
-void *map_sha1_file(struct repository *r, const unsigned char *sha1, unsigned long *size);
+void *map_loose_object(struct repository *r, const struct object_id *oid,
+ unsigned long *size);
extern void *read_object_file_extended(const struct object_id *oid,
enum object_type *type,
diff --git a/sha1-file.c b/sha1-file.c
index e86bb28320..cd8e5f005a 100644
--- a/sha1-file.c
+++ b/sha1-file.c
@@ -333,12 +333,12 @@ int raceproof_create_file(const char *path, create_file_fn fn, void *cb)
return ret;
}
-static void fill_sha1_path(struct strbuf *buf, const unsigned char *sha1)
+static void fill_loose_path(struct strbuf *buf, const struct object_id *oid)
{
int i;
for (i = 0; i < the_hash_algo->rawsz; i++) {
static char hex[] = "0123456789abcdef";
- unsigned int val = sha1[i];
+ unsigned int val = oid->hash[i];
strbuf_addch(buf, hex[val >> 4]);
strbuf_addch(buf, hex[val & 0xf]);
if (!i)
@@ -348,19 +348,19 @@ static void fill_sha1_path(struct strbuf *buf, const unsigned char *sha1)
static const char *odb_loose_path(struct object_directory *odb,
struct strbuf *buf,
- const unsigned char *sha1)
+ const struct object_id *oid)
{
strbuf_reset(buf);
strbuf_addstr(buf, odb->path);
strbuf_addch(buf, '/');
- fill_sha1_path(buf, sha1);
+ fill_loose_path(buf, oid);
return buf->buf;
}
const char *loose_object_path(struct repository *r, struct strbuf *buf,
- const unsigned char *sha1)
+ const struct object_id *oid)
{
- return odb_loose_path(r->objects->odb, buf, sha1);
+ return odb_loose_path(r->objects->odb, buf, oid);
}
/*
@@ -721,7 +721,7 @@ static int check_and_freshen_odb(struct object_directory *odb,
int freshen)
{
static struct strbuf path = STRBUF_INIT;
- odb_loose_path(odb, &path, oid->hash);
+ odb_loose_path(odb, &path, oid);
return check_and_freshen_file(path.buf, freshen);
}
@@ -872,22 +872,22 @@ int git_open_cloexec(const char *name, int flags)
}
/*
- * Find "sha1" as a loose object in the local repository or in an alternate.
+ * Find "oid" as a loose object in the local repository or in an alternate.
* Returns 0 on success, negative on failure.
*
* The "path" out-parameter will give the path of the object we found (if any).
* Note that it may point to static storage and is only valid until another
- * call to stat_sha1_file().
+ * call to stat_loose_object().
*/
-static int stat_sha1_file(struct repository *r, const unsigned char *sha1,
- struct stat *st, const char **path)
+static int stat_loose_object(struct repository *r, const struct object_id *oid,
+ struct stat *st, const char **path)
{
struct object_directory *odb;
static struct strbuf buf = STRBUF_INIT;
prepare_alt_odb(r);
for (odb = r->objects->odb; odb; odb = odb->next) {
- *path = odb_loose_path(odb, &buf, sha1);
+ *path = odb_loose_path(odb, &buf, oid);
if (!lstat(*path, st))
return 0;
}
@@ -896,11 +896,11 @@ static int stat_sha1_file(struct repository *r, const unsigned char *sha1,
}
/*
- * Like stat_sha1_file(), but actually open the object and return the
+ * Like stat_loose_object(), but actually open the object and return the
* descriptor. See the caveats on the "path" parameter above.
*/
-static int open_sha1_file(struct repository *r,
- const unsigned char *sha1, const char **path)
+static int open_loose_object(struct repository *r,
+ const struct object_id *oid, const char **path)
{
int fd;
struct object_directory *odb;
@@ -909,7 +909,7 @@ static int open_sha1_file(struct repository *r,
prepare_alt_odb(r);
for (odb = r->objects->odb; odb; odb = odb->next) {
- *path = odb_loose_path(odb, &buf, sha1);
+ *path = odb_loose_path(odb, &buf, oid);
fd = git_open(*path);
if (fd >= 0)
return fd;
@@ -939,10 +939,10 @@ static int quick_has_loose(struct repository *r,
/*
* Map the loose object at "path" if it is not NULL, or the path found by
- * searching for a loose object named "sha1".
+ * searching for a loose object named "oid".
*/
-static void *map_sha1_file_1(struct repository *r, const char *path,
- const unsigned char *sha1, unsigned long *size)
+static void *map_loose_object_1(struct repository *r, const char *path,
+ const struct object_id *oid, unsigned long *size)
{
void *map;
int fd;
@@ -950,7 +950,7 @@ static void *map_sha1_file_1(struct repository *r, const char *path,
if (path)
fd = git_open(path);
else
- fd = open_sha1_file(r, sha1, &path);
+ fd = open_loose_object(r, oid, &path);
map = NULL;
if (fd >= 0) {
struct stat st;
@@ -969,10 +969,11 @@ static void *map_sha1_file_1(struct repository *r, const char *path,
return map;
}
-void *map_sha1_file(struct repository *r,
- const unsigned char *sha1, unsigned long *size)
+void *map_loose_object(struct repository *r,
+ const struct object_id *oid,
+ unsigned long *size)
{
- return map_sha1_file_1(r, NULL, sha1, size);
+ return map_loose_object_1(r, NULL, oid, size);
}
static int unpack_sha1_short_header(git_zstream *stream,
@@ -1161,9 +1162,9 @@ int parse_sha1_header(const char *hdr, unsigned long *sizep)
return parse_sha1_header_extended(hdr, &oi, 0);
}
-static int sha1_loose_object_info(struct repository *r,
- const unsigned char *sha1,
- struct object_info *oi, int flags)
+static int loose_object_info(struct repository *r,
+ const struct object_id *oid,
+ struct object_info *oi, int flags)
{
int status = 0;
unsigned long mapsize;
@@ -1188,15 +1189,15 @@ static int sha1_loose_object_info(struct repository *r,
const char *path;
struct stat st;
if (!oi->disk_sizep && (flags & OBJECT_INFO_QUICK))
- return quick_has_loose(r, sha1) ? 0 : -1;
- if (stat_sha1_file(r, sha1, &st, &path) < 0)
+ return quick_has_loose(r, oid->hash) ? 0 : -1;
+ if (stat_loose_object(r, oid, &st, &path) < 0)
return -1;
if (oi->disk_sizep)
*oi->disk_sizep = st.st_size;
return 0;
}
- map = map_sha1_file(r, sha1, &mapsize);
+ map = map_loose_object(r, oid, &mapsize);
if (!map)
return -1;
@@ -1208,22 +1209,22 @@ static int sha1_loose_object_info(struct repository *r,
if ((flags & OBJECT_INFO_ALLOW_UNKNOWN_TYPE)) {
if (unpack_sha1_header_to_strbuf(&stream, map, mapsize, hdr, sizeof(hdr), &hdrbuf) < 0)
status = error(_("unable to unpack %s header with --allow-unknown-type"),
- sha1_to_hex(sha1));
+ oid_to_hex(oid));
} else if (unpack_sha1_header(&stream, map, mapsize, hdr, sizeof(hdr)) < 0)
status = error(_("unable to unpack %s header"),
- sha1_to_hex(sha1));
+ oid_to_hex(oid));
if (status < 0)
; /* Do nothing */
else if (hdrbuf.len) {
if ((status = parse_sha1_header_extended(hdrbuf.buf, oi, flags)) < 0)
status = error(_("unable to parse %s header with --allow-unknown-type"),
- sha1_to_hex(sha1));
+ oid_to_hex(oid));
} else if ((status = parse_sha1_header_extended(hdr, oi, flags)) < 0)
- status = error(_("unable to parse %s header"), sha1_to_hex(sha1));
+ status = error(_("unable to parse %s header"), oid_to_hex(oid));
if (status >= 0 && oi->contentp) {
*oi->contentp = unpack_sha1_rest(&stream, hdr,
- *oi->sizep, sha1);
+ *oi->sizep, oid->hash);
if (!*oi->contentp) {
git_inflate_end(&stream);
status = -1;
@@ -1289,7 +1290,7 @@ int oid_object_info_extended(struct repository *r, const struct object_id *oid,
return -1;
/* Most likely it's a loose object. */
- if (!sha1_loose_object_info(r, real->hash, oi, flags))
+ if (!loose_object_info(r, real, oi, flags))
return 0;
/* Not a loose object; someone else may have just packed it. */
@@ -1417,7 +1418,7 @@ void *read_object_file_extended(const struct object_id *oid,
die(_("replacement %s not found for %s"),
oid_to_hex(repl), oid_to_hex(oid));
- if (!stat_sha1_file(the_repository, repl->hash, &st, &path))
+ if (!stat_loose_object(the_repository, repl, &st, &path))
die(_("loose object %s (stored in %s) is corrupt"),
oid_to_hex(repl), path);
@@ -1552,7 +1553,7 @@ int hash_object_file(const void *buf, unsigned long len, const char *type,
}
/* Finalize a file on disk, and close it. */
-static void close_sha1_file(int fd)
+static void close_loose_object(int fd)
{
if (fsync_object_files)
fsync_or_die(fd, "sha1 file");
@@ -1617,7 +1618,7 @@ static int write_loose_object(const struct object_id *oid, char *hdr,
static struct strbuf tmp_file = STRBUF_INIT;
static struct strbuf filename = STRBUF_INIT;
- loose_object_path(the_repository, &filename, oid->hash);
+ loose_object_path(the_repository, &filename, oid);
fd = create_tmpfile(&tmp_file, filename.buf);
if (fd < 0) {
@@ -1665,7 +1666,7 @@ static int write_loose_object(const struct object_id *oid, char *hdr,
die(_("confused by unstable object source data for %s"),
oid_to_hex(oid));
- close_sha1_file(fd);
+ close_loose_object(fd);
if (mtime) {
struct utimbuf utb;
@@ -2260,7 +2261,7 @@ int read_loose_object(const char *path,
*contents = NULL;
- map = map_sha1_file_1(the_repository, path, NULL, &mapsize);
+ map = map_loose_object_1(the_repository, path, NULL, &mapsize);
if (!map) {
error_errno(_("unable to mmap %s"), path);
goto out;
diff --git a/streaming.c b/streaming.c
index ac7c7a22f9..9049146bc1 100644
--- a/streaming.c
+++ b/streaming.c
@@ -338,8 +338,8 @@ static struct stream_vtbl loose_vtbl = {
static open_method_decl(loose)
{
- st->u.loose.mapped = map_sha1_file(the_repository,
- oid->hash, &st->u.loose.mapsize);
+ st->u.loose.mapped = map_loose_object(the_repository,
+ oid, &st->u.loose.mapsize);
if (!st->u.loose.mapped)
return -1;
if ((unpack_sha1_header(&st->z,
--
2.20.1.470.g640a3e2614
