[03/19] object-store: allow read_object_file_extended to read from arbitrary repositories

Commit Message

Stefan Beller Oct. 11, 2018, 9:17 p.m. UTC

read_object_file_extended is not widely used, so migrate it all at once.

Signed-off-by: Stefan Beller <[e-mail]>
---
 object-store.h |  5 +++--
 sha1-file.c    | 11 ++++++-----
 streaming.c    |  2 +-
 3 files changed, 10 insertions(+), 8 deletions(-)

Comments

Jonathan Tan Oct. 11, 2018, 9:58 p.m. UTC | #1

> @@ -1413,10 +1414,10 @@ void *read_object_file_extended(const struct object_id *oid,
>  	const char *path;
>  	struct stat st;
>  	const struct object_id *repl = lookup_replace ?
> -		lookup_replace_object(the_repository, oid) : oid;
> +		lookup_replace_object(r, oid) : oid;

Firstly, patches 1 and 2 are obviously correct.

This lookup_replace_object() is a bit tricky in that at 'master',
register_replace_ref() (indirectly called by lookup_replace_object())
did not handle arbitrary repositories correctly, but 'next' has a patch
that solves this, so this shouldn't be an issue. The other function
changes look fine. So this patch looks correct too.

Patch

diff --git a/object-store.h b/object-store.h
index 67e66227d9..6bb0ccbf05 100644
--- a/object-store.h
+++ b/object-store.h
@@ -146,12 +146,13 @@  void sha1_file_name(struct repository *r, struct strbuf *buf, const unsigned cha
 
 void *map_sha1_file(struct repository *r, const unsigned char *sha1, unsigned long *size);
 
-extern void *read_object_file_extended(const struct object_id *oid,
+extern void *read_object_file_extended(struct repository *r,
+				       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_object_file_extended(oid, type, size, 1);
+	return read_object_file_extended(the_repository, oid, type, size, 1);
 }
 
 /* Read and unpack an object file into memory, write memory to an object file */
diff --git a/sha1-file.c b/sha1-file.c
index 13b3c5cb79..ce47524679 100644
--- a/sha1-file.c
+++ b/sha1-file.c
@@ -1403,7 +1403,8 @@  int pretend_object_file(void *buf, unsigned long len, enum object_type type,
  * deal with them should arrange to call read_object() and give error
  * messages themselves.
  */
-void *read_object_file_extended(const struct object_id *oid,
+void *read_object_file_extended(struct repository *r,
+				const struct object_id *oid,
 				enum object_type *type,
 				unsigned long *size,
 				int lookup_replace)
@@ -1413,10 +1414,10 @@  void *read_object_file_extended(const struct object_id *oid,
 	const char *path;
 	struct stat st;
 	const struct object_id *repl = lookup_replace ?
-		lookup_replace_object(the_repository, oid) : oid;
+		lookup_replace_object(r, oid) : oid;
 
 	errno = 0;
-	data = read_object(the_repository, repl->hash, type, size);
+	data = read_object(r, repl->hash, type, size);
 	if (data)
 		return data;
 
@@ -1428,11 +1429,11 @@  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_sha1_file(r, repl->hash, &st, &path))
 		die(_("loose object %s (stored in %s) is corrupt"),
 		    oid_to_hex(repl), path);
 
-	if ((p = has_packed_and_bad(the_repository, repl->hash)) != NULL)
+	if ((p = has_packed_and_bad(r, repl->hash)) != NULL)
 		die(_("packed object %s (stored in %s) is corrupt"),
 		    oid_to_hex(repl), p->pack_name);
 
diff --git a/streaming.c b/streaming.c
index d1e6b2dce6..c843a1230f 100644
--- a/streaming.c
+++ b/streaming.c
@@ -490,7 +490,7 @@  static struct stream_vtbl incore_vtbl = {
 
 static open_method_decl(incore)
 {
-	st->u.incore.buf = read_object_file_extended(oid, type, &st->size, 0);
+	st->u.incore.buf = read_object_file_extended(the_repository, oid, type, &st->size, 0);
 	st->u.incore.read_ptr = 0;
 	st->vtbl = &incore_vtbl;