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Merge branch 'jh/fsck-promisors'

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In preparation for implementing narrow/partial clone, the machinery
for checking object connectivity used by gc and fsck has been
taught that a missing object is OK when it is referenced by a
packfile specially marked as coming from trusted repository that
promises to make them available on-demand and lazily.

* jh/fsck-promisors:
  gc: do not repack promisor packfiles
  rev-list: support termination at promisor objects
  sha1_file: support lazily fetching missing objects
  introduce fetch-object: fetch one promisor object
  index-pack: refactor writing of .keep files
  fsck: support promisor objects as CLI argument
  fsck: support referenced promisor objects
  fsck: support refs pointing to promisor objects
  fsck: introduce partialclone extension
  extension.partialclone: introduce partial clone extension
This commit is contained in:
Junio C Hamano
2018-02-13 13:39:03 -08:00
parent ed1b87ef91 0c16cd499d
commit f3d618d2bf
32 changed files with 896 additions and 96 deletions
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13
cache.h
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@ -914,10 +914,12 @@ extern int grafts_replace_parents;
#define GIT_REPO_VERSION 0
#define GIT_REPO_VERSION_READ 1
extern int repository_format_precious_objects;
extern char *repository_format_partial_clone;
struct repository_format {
int version;
int precious_objects;
char *partial_clone; /* value of extensions.partialclone */
int is_bare;
int hash_algo;
char *work_tree;
@ -1648,7 +1650,8 @@ extern struct packed_git {
unsigned pack_local:1,
pack_keep:1,
freshened:1,
do_not_close:1;
do_not_close:1,
pack_promisor:1;
unsigned char sha1[20];
struct revindex_entry *revindex;
/* something like ".git/objects/pack/xxxxx.pack" */
@ -1787,6 +1790,14 @@ struct object_info {
#define OBJECT_INFO_QUICK 8
extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags);
/*
* Set this to 0 to prevent sha1_object_info_extended() from fetching missing
* blobs. This has a difference only if extensions.partialClone is set.
*
* Its default value is 1.
*/
extern int fetch_if_missing;
/* Dumb servers support */
extern int update_server_info(int);