Merge branch 'sb/packfiles-in-repository' into next

Refactoring of the internal global data structure continues.

* sb/packfiles-in-repository:
  packfile: keep prepare_packed_git() private
  packfile: allow find_pack_entry to handle arbitrary repositories
  packfile: add repository argument to find_pack_entry
  packfile: allow reprepare_packed_git to handle arbitrary repositories
  packfile: allow prepare_packed_git to handle arbitrary repositories
  packfile: allow prepare_packed_git_one to handle arbitrary repositories
  packfile: add repository argument to reprepare_packed_git
  packfile: add repository argument to prepare_packed_git
  packfile: add repository argument to prepare_packed_git_one
  packfile: allow install_packed_git to handle arbitrary repositories
  packfile: allow rearrange_packed_git to handle arbitrary repositories
  packfile: allow prepare_packed_git_mru to handle arbitrary repositories

Author: gitster

builtin/count-objects.c

@@ -122,8 +122,7 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix)
 		struct strbuf loose_buf = STRBUF_INIT;
 		struct strbuf pack_buf = STRBUF_INIT;
 		struct strbuf garbage_buf = STRBUF_INIT;
-		if (!get_packed_git(the_repository))
-			prepare_packed_git();
+
 		for (p = get_packed_git(the_repository); p; p = p->next) {
 			if (!p->pack_local)
 				continue;

builtin/fsck.c

@@ -735,8 +735,6 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
 			uint32_t total = 0, count = 0;
 			struct progress *progress = NULL;
 
-			prepare_packed_git();
-
 			if (show_progress) {
 				for (p = get_packed_git(the_repository); p;
 				     p = p->next) {

builtin/gc.c

@@ -174,7 +174,6 @@ static int too_many_packs(void)
 	if (gc_auto_pack_limit <= 0)
 		return 0;
 
-	prepare_packed_git();
 	for (cnt = 0, p = get_packed_git(the_repository); p; p = p->next) {
 		if (!p->pack_local)
 			continue;
@@ -481,7 +480,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
 		return error(FAILED_RUN, rerere.argv[0]);
 
 	report_garbage = report_pack_garbage;
-	reprepare_packed_git();
+	reprepare_packed_git(the_repository);
 	if (pack_garbage.nr > 0)
 		clean_pack_garbage();
 

builtin/pack-objects.c

@@ -3148,7 +3148,6 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
 	if (progress && all_progress_implied)
 		progress = 2;
 
-	prepare_packed_git();
 	if (ignore_packed_keep) {
 		struct packed_git *p;
 		for (p = get_packed_git(the_repository); p; p = p->next)

builtin/pack-redundant.c

@@ -631,8 +631,6 @@ int cmd_pack_redundant(int argc, const char **argv, const char *prefix)
 			break;
 	}
 
-	prepare_packed_git();
-
 	if (load_all_packs)
 		load_all();
 	else

builtin/receive-pack.c

@@ -1,4 +1,5 @@
 #include "builtin.h"
+#include "repository.h"
 #include "config.h"
 #include "lockfile.h"
 #include "pack.h"
@@ -1778,7 +1779,7 @@ static const char *unpack(int err_fd, struct shallow_info *si)
 		status = finish_command(&child);
 		if (status)
 			return "index-pack abnormal exit";
-		reprepare_packed_git();
+		reprepare_packed_git(the_repository);
 	}
 	return NULL;
 }

bulk-checkin.c

@@ -3,6 +3,7 @@
  */
 #include "cache.h"
 #include "bulk-checkin.h"
+#include "repository.h"
 #include "csum-file.h"
 #include "pack.h"
 #include "strbuf.h"
@@ -57,7 +58,7 @@ static void finish_bulk_checkin(struct bulk_checkin_state *state)
 
 	strbuf_release(&packname);
 	/* Make objects we just wrote available to ourselves */
-	reprepare_packed_git();
+	reprepare_packed_git(the_repository);
 }
 
 static int already_written(struct bulk_checkin_state *state, struct object_id *oid)

fast-import.c

@@ -992,7 +992,7 @@ static void end_packfile(void)
 		if (!new_p)
 			die("core git rejected index %s", idx_name);
 		all_packs[pack_id] = new_p;
-		install_packed_git(new_p);
+		install_packed_git(the_repository, new_p);
 		free(idx_name);
 
 		/* Print the boundary */
@@ -3430,7 +3430,6 @@ int cmd_main(int argc, const char **argv)
 		rc_free[i].next = &rc_free[i + 1];
 	rc_free[cmd_save - 1].next = NULL;
 
-	prepare_packed_git();
 	start_packfile();
 	set_die_routine(die_nicely);
 	set_checkpoint_signal();

fetch-pack.c

@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "repository.h"
 #include "config.h"
 #include "lockfile.h"
 #include "refs.h"
@@ -1567,7 +1568,7 @@ struct ref *fetch_pack(struct fetch_pack_args *args,
 	else
 		ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought,
 					&si, pack_lockfile);
-	reprepare_packed_git();
+	reprepare_packed_git(the_repository);
 	update_shallow(args, sought, nr_sought, &si);
 	clear_shallow_info(&si);
 	return ref_cpy;

http-backend.c

@@ -523,7 +523,6 @@ static void get_info_packs(struct strbuf *hdr, char *arg)
 	size_t cnt = 0;
 
 	select_getanyfile(hdr);
-	prepare_packed_git();
 	for (p = get_packed_git(the_repository); p; p = p->next) {
 		if (p->pack_local)
 			cnt++;

http.c

@@ -2130,7 +2130,7 @@ int finish_http_pack_request(struct http_pack_request *preq)
 		return -1;
 	}
 
-	install_packed_git(p);
+	install_packed_git(the_repository, p);
 	free(tmp_idx);
 	return 0;
 }

pack-bitmap.c

@@ -336,7 +336,6 @@ static int open_pack_bitmap(void)
 
 	assert(!bitmap_git.map && !bitmap_git.loaded);
 
-	prepare_packed_git();
 	for (p = get_packed_git(the_repository); p; p = p->next) {
 		if (open_pack_bitmap_1(p) == 0)
 			ret = 0;

packfile.c

@@ -680,13 +680,13 @@ struct packed_git *add_packed_git(const char *path, size_t path_len, int local)
 	return p;
 }
 
-void install_packed_git(struct packed_git *pack)
+void install_packed_git(struct repository *r, struct packed_git *pack)
 {
 	if (pack->pack_fd != -1)
 		pack_open_fds++;
 
-	pack->next = the_repository->objects->packed_git;
-	the_repository->objects->packed_git = pack;
+	pack->next = r->objects->packed_git;
+	r->objects->packed_git = pack;
 }
 
 void (*report_garbage)(unsigned seen_bits, const char *path);
@@ -735,7 +735,7 @@ static void report_pack_garbage(struct string_list *list)
 	report_helper(list, seen_bits, first, list->nr);
 }
 
-static void prepare_packed_git_one(char *objdir, int local)
+static void prepare_packed_git_one(struct repository *r, char *objdir, int local)
 {
 	struct strbuf path = STRBUF_INIT;
 	size_t dirnamelen;
@@ -768,7 +768,7 @@ static void prepare_packed_git_one(char *objdir, int local)
 		base_len = path.len;
 		if (strip_suffix_mem(path.buf, &base_len, ".idx")) {
 			/* Don't reopen a pack we already have. */
-			for (p = the_repository->objects->packed_git; p;
+			for (p = r->objects->packed_git; p;
 			     p = p->next) {
 				size_t len;
 				if (strip_suffix(p->pack_name, ".pack", &len) &&
@@ -782,7 +782,7 @@ static void prepare_packed_git_one(char *objdir, int local)
 			     * corresponding .pack file that we can map.
 			     */
 			    (p = add_packed_git(path.buf, path.len, local)) != NULL)
-				install_packed_git(p);
+				install_packed_git(r, p);
 		}
 
 		if (!report_garbage)
@@ -803,6 +803,7 @@ static void prepare_packed_git_one(char *objdir, int local)
 	strbuf_release(&path);
 }
 
+static void prepare_packed_git(struct repository *r);
 /*
  * Give a fast, rough count of the number of objects in the repository. This
  * ignores loose objects completely. If you have a lot of them, then either
@@ -816,7 +817,7 @@ unsigned long approximate_object_count(void)
 		unsigned long count;
 		struct packed_git *p;
 
-		prepare_packed_git();
+		prepare_packed_git(the_repository);
 		count = 0;
 		for (p = the_repository->objects->packed_git; p; p = p->next) {
 			if (open_pack_index(p))
@@ -866,52 +867,54 @@ static int sort_pack(const void *a_, const void *b_)
 	return -1;
 }
 
-static void rearrange_packed_git(void)
+static void rearrange_packed_git(struct repository *r)
 {
-	the_repository->objects->packed_git = llist_mergesort(
-		the_repository->objects->packed_git, get_next_packed_git,
+	r->objects->packed_git = llist_mergesort(
+		r->objects->packed_git, get_next_packed_git,
 		set_next_packed_git, sort_pack);
 }
 
-static void prepare_packed_git_mru(void)
+static void prepare_packed_git_mru(struct repository *r)
 {
 	struct packed_git *p;
 
-	INIT_LIST_HEAD(&the_repository->objects->packed_git_mru);
+	INIT_LIST_HEAD(&r->objects->packed_git_mru);
 
-	for (p = the_repository->objects->packed_git; p; p = p->next)
-		list_add_tail(&p->mru, &the_repository->objects->packed_git_mru);
+	for (p = r->objects->packed_git; p; p = p->next)
+		list_add_tail(&p->mru, &r->objects->packed_git_mru);
 }
 
-void prepare_packed_git(void)
+static void prepare_packed_git(struct repository *r)
 {
 	struct alternate_object_database *alt;
 
-	if (the_repository->objects->packed_git_initialized)
+	if (r->objects->packed_git_initialized)
 		return;
-	prepare_packed_git_one(get_object_directory(), 1);
-	prepare_alt_odb(the_repository);
-	for (alt = the_repository->objects->alt_odb_list; alt; alt = alt->next)
-		prepare_packed_git_one(alt->path, 0);
-	rearrange_packed_git();
-	prepare_packed_git_mru();
-	the_repository->objects->packed_git_initialized = 1;
+	prepare_packed_git_one(r, r->objects->objectdir, 1);
+	prepare_alt_odb(r);
+	for (alt = r->objects->alt_odb_list; alt; alt = alt->next)
+		prepare_packed_git_one(r, alt->path, 0);
+	rearrange_packed_git(r);
+	prepare_packed_git_mru(r);
+	r->objects->packed_git_initialized = 1;
 }
 
-void reprepare_packed_git(void)
+void reprepare_packed_git(struct repository *r)
 {
-	the_repository->objects->approximate_object_count_valid = 0;
-	the_repository->objects->packed_git_initialized = 0;
-	prepare_packed_git();
+	r->objects->approximate_object_count_valid = 0;
+	r->objects->packed_git_initialized = 0;
+	prepare_packed_git(r);
 }
 
 struct packed_git *get_packed_git(struct repository *r)
 {
+	prepare_packed_git(r);
 	return r->objects->packed_git;
 }
 
 struct list_head *get_packed_git_mru(struct repository *r)
 {
+	prepare_packed_git(r);
 	return &r->objects->packed_git_mru;
 }
 
@@ -1834,23 +1837,18 @@ static int fill_pack_entry(const unsigned char *sha1,
 	return 1;
 }
 
-/*
- * Iff a pack file contains the object named by sha1, return true and
- * store its location to e.
- */
-int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
+int find_pack_entry(struct repository *r, const unsigned char *sha1, struct pack_entry *e)
 {
 	struct list_head *pos;
 
-	prepare_packed_git();
-	if (!the_repository->objects->packed_git)
+	prepare_packed_git(r);
+	if (!r->objects->packed_git)
 		return 0;
 
-	list_for_each(pos, &the_repository->objects->packed_git_mru) {
+	list_for_each(pos, &r->objects->packed_git_mru) {
 		struct packed_git *p = list_entry(pos, struct packed_git, mru);
 		if (fill_pack_entry(sha1, e, p)) {
-			list_move(&p->mru,
-				  &the_repository->objects->packed_git_mru);
+			list_move(&p->mru, &r->objects->packed_git_mru);
 			return 1;
 		}
 	}
@@ -1860,7 +1858,7 @@ int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
 int has_sha1_pack(const unsigned char *sha1)
 {
 	struct pack_entry e;
-	return find_pack_entry(sha1, &e);
+	return find_pack_entry(the_repository, sha1, &e);
 }
 
 int has_pack_index(const unsigned char *sha1)
@@ -1896,7 +1894,7 @@ int for_each_packed_object(each_packed_object_fn cb, void *data, unsigned flags)
 	int r = 0;
 	int pack_errors = 0;
 
-	prepare_packed_git();
+	prepare_packed_git(the_repository);
 	for (p = the_repository->objects->packed_git; p; p = p->next) {
 		if ((flags & FOR_EACH_OBJECT_LOCAL_ONLY) && !p->pack_local)
 			continue;

packfile.h

@@ -34,9 +34,8 @@ extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_
 #define PACKDIR_FILE_GARBAGE 4
 extern void (*report_garbage)(unsigned seen_bits, const char *path);
 
-extern void prepare_packed_git(void);
-extern void reprepare_packed_git(void);
-extern void install_packed_git(struct packed_git *pack);
+extern void reprepare_packed_git(struct repository *r);
+extern void install_packed_git(struct repository *r, struct packed_git *pack);
 
 struct packed_git *get_packed_git(struct repository *r);
 struct list_head *get_packed_git_mru(struct repository *r);
@@ -131,7 +130,11 @@ extern int packed_object_info(struct packed_git *pack, off_t offset, struct obje
 extern void mark_bad_packed_object(struct packed_git *p, const unsigned char *sha1);
 extern const struct packed_git *has_packed_and_bad(const unsigned char *sha1);
 
-extern int find_pack_entry(const unsigned char *sha1, struct pack_entry *e);
+/*
+ * Iff a pack file in the given repository contains the object named by sha1,
+ * return true and store its location to e.
+ */
+extern int find_pack_entry(struct repository *r, const unsigned char *sha1, struct pack_entry *e);
 
 extern int has_sha1_pack(const unsigned char *sha1);
 

server-info.c

@@ -201,7 +201,6 @@ static void init_pack_info(const char *infofile, int force)
 	objdir = get_object_directory();
 	objdirlen = strlen(objdir);
 
-	prepare_packed_git();
 	for (p = get_packed_git(the_repository); p; p = p->next) {
 		/* we ignore things on alternate path since they are
 		 * not available to the pullers in general.

sha1_file.c

@@ -1268,7 +1268,7 @@ int oid_object_info_extended(const struct object_id *oid, struct object_info *oi
 	}
 
 	while (1) {
-		if (find_pack_entry(real->hash, &e))
+		if (find_pack_entry(the_repository, real->hash, &e))
 			break;
 
 		if (flags & OBJECT_INFO_IGNORE_LOOSE)
@@ -1280,8 +1280,8 @@ int oid_object_info_extended(const struct object_id *oid, struct object_info *oi
 
 		/* Not a loose object; someone else may have just packed it. */
 		if (!(flags & OBJECT_INFO_QUICK)) {
-			reprepare_packed_git();
-			if (find_pack_entry(real->hash, &e))
+			reprepare_packed_git(the_repository);
+			if (find_pack_entry(the_repository, real->hash, &e))
 				break;
 		}
 
@@ -1669,7 +1669,7 @@ static int freshen_loose_object(const unsigned char *sha1)
 static int freshen_packed_object(const unsigned char *sha1)
 {
 	struct pack_entry e;
-	if (!find_pack_entry(sha1, &e))
+	if (!find_pack_entry(the_repository, sha1, &e))
 		return 0;
 	if (e.p->freshened)
 		return 1;