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Merge branch 'jk/prune-mtime'

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Tighten the logic to decide that an unreachable cruft is
sufficiently old by covering corner cases such as an ancient object
becoming reachable and then going unreachable again, in which case
its retention period should be prolonged.

* jk/prune-mtime: (28 commits)
  drop add_object_array_with_mode
  revision: remove definition of unused 'add_object' function
  pack-objects: double-check options before discarding objects
  repack: pack objects mentioned by the index
  pack-objects: use argv_array
  reachable: use revision machinery's --indexed-objects code
  rev-list: add --indexed-objects option
  rev-list: document --reflog option
  t5516: test pushing a tag of an otherwise unreferenced blob
  traverse_commit_list: support pending blobs/trees with paths
  make add_object_array_with_context interface more sane
  write_sha1_file: freshen existing objects
  pack-objects: match prune logic for discarding objects
  pack-objects: refactor unpack-unreachable expiration check
  prune: keep objects reachable from recent objects
  sha1_file: add for_each iterators for loose and packed objects
  count-objects: use for_each_loose_file_in_objdir
  count-objects: do not use xsize_t when counting object size
  prune-packed: use for_each_loose_file_in_objdir
  reachable: mark index blobs as SEEN
  ...
This commit is contained in:
Junio C Hamano
2014-10-29 10:07:56 -07:00
parent 853878d520 189a122249
commit d70e331c0e
23 changed files with 849 additions and 449 deletions
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46
cache.h
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@ -1145,7 +1145,7 @@ extern void prepare_alt_odb(void);
extern void read_info_alternates(const char * relative_base, int depth);
extern void add_to_alternates_file(const char *reference);
typedef int alt_odb_fn(struct alternate_object_database *, void *);
extern void foreach_alt_odb(alt_odb_fn, void*);
extern int foreach_alt_odb(alt_odb_fn, void*);
struct pack_window {
struct pack_window *next;
@ -1241,6 +1241,50 @@ extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsig
extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *);
/*
* Iterate over the files in the loose-object parts of the object
* directory "path", triggering the following callbacks:
*
* - loose_object is called for each loose object we find.
*
* - loose_cruft is called for any files that do not appear to be
* loose objects. Note that we only look in the loose object
* directories "objects/[0-9a-f]{2}/", so we will not report
* "objects/foobar" as cruft.
*
* - loose_subdir is called for each top-level hashed subdirectory
* of the object directory (e.g., "$OBJDIR/f0"). It is called
* after the objects in the directory are processed.
*
* Any callback that is NULL will be ignored. Callbacks returning non-zero
* will end the iteration.
*/
typedef int each_loose_object_fn(const unsigned char *sha1,
const char *path,
void *data);
typedef int each_loose_cruft_fn(const char *basename,
const char *path,
void *data);
typedef int each_loose_subdir_fn(int nr,
const char *path,
void *data);
int for_each_loose_file_in_objdir(const char *path,
each_loose_object_fn obj_cb,
each_loose_cruft_fn cruft_cb,
each_loose_subdir_fn subdir_cb,
void *data);
/*
* Iterate over loose and packed objects in both the local
* repository and any alternates repositories.
*/
typedef int each_packed_object_fn(const unsigned char *sha1,
struct packed_git *pack,
uint32_t pos,
void *data);
extern int for_each_loose_object(each_loose_object_fn, void *);
extern int for_each_packed_object(each_packed_object_fn, void *);
struct object_info {
/* Request */
enum object_type *typep;