[PATCH] clean up pack index handling a bit

Especially with the new index format to come, it is more appropriate
to encapsulate more into check_packed_git_idx() and assume less of the
index format in struct packed_git.

To that effect, the index_base is renamed to index_data with void * type
so it is not used directly but other pointers initialized with it. This
allows for a couple pointer cast removal, as well as providing a better
generic name to grep for when adding support for new index versions or
formats.

And index_data is declared const too while at it.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 5 insertions, 4 deletions

diff --git a/cache.h b/cache.h
index a4762eda5..3818e10f8 100644
--- a/cache.h
+++ b/cache.h
@@ -371,10 +371,11 @@ struct pack_window {
 extern struct packed_git {
 	struct packed_git *next;
 	struct pack_window *windows;
-	uint32_t *index_base;
-	time_t mtime;
+	const void *index_data;
 	off_t index_size;
 	off_t pack_size;
+	time_t mtime;
+	int index_version;
 	int pack_fd;
 	int pack_local;
 	unsigned char sha1[20];
@@ -412,7 +413,7 @@ extern int server_supports(const char *feature);
 
 extern struct packed_git *parse_pack_index(unsigned char *sha1);
 extern struct packed_git *parse_pack_index_file(const unsigned char *sha1,
-						char *idx_path);
+						const char *idx_path);
 
 extern void prepare_packed_git(void);
 extern void reprepare_packed_git(void);
@@ -424,7 +425,7 @@ extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
 extern void pack_report(void);
 extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
 extern void unuse_pack(struct pack_window **);
-extern struct packed_git *add_packed_git(char *, int, int);
+extern struct packed_git *add_packed_git(const char *, int, int);
 extern uint32_t num_packed_objects(const struct packed_git *p);
 extern int nth_packed_object_sha1(const struct packed_git *, uint32_t, unsigned char*);
 extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);