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   1 #ifndef SHALLOW_H
   2 #define SHALLOW_H
   3
   4 #include "lockfile.h"
   5 #include "object.h"
   6 #include "repository.h"
   7 #include "strbuf.h"
   8
   9 void set_alternate_shallow_file(struct repository *r, const char *path, int override);
  10 int register_shallow(struct repository *r, const struct object_id *oid);
  11 int unregister_shallow(const struct object_id *oid);
  12 int is_repository_shallow(struct repository *r);
  13
  14 /*
  15  * Lock for updating the $GIT_DIR/shallow file.
  16  *
  17  * Use `commit_shallow_file()` to commit an update, or
  18  * `rollback_shallow_file()` to roll it back. In either case, any
  19  * in-memory cached information about which commits are shallow will be
  20  * appropriately invalidated so that future operations reflect the new
  21  * state.
  22  */
  23 struct shallow_lock {
  24         struct lock_file lock;
  25 };
  26 #define SHALLOW_LOCK_INIT { LOCK_INIT }
  27
  28 /* commit $GIT_DIR/shallow and reset stat-validity checks */
  29 int commit_shallow_file(struct repository *r, struct shallow_lock *lk);
  30 /* rollback $GIT_DIR/shallow and reset stat-validity checks */
  31 void rollback_shallow_file(struct repository *r, struct shallow_lock *lk);
  32
  33 struct commit_list *get_shallow_commits(struct object_array *heads,
  34                                         int depth, int shallow_flag, int not_shallow_flag);
  35 struct commit_list *get_shallow_commits_by_rev_list(
  36                 int ac, const char **av, int shallow_flag, int not_shallow_flag);
  37 int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
  38                           const struct oid_array *extra);
  39
  40 void setup_alternate_shallow(struct shallow_lock *shallow_lock,
  41                              const char **alternate_shallow_file,
  42                              const struct oid_array *extra);
  43
  44 const char *setup_temporary_shallow(const struct oid_array *extra);
  45
  46 void advertise_shallow_grafts(int);
  47
  48 #define PRUNE_SHOW_ONLY 1
  49 #define PRUNE_QUICK 2
  50 void prune_shallow(unsigned options);
  51
  52 /*
  53  * Initialize with prepare_shallow_info() or zero-initialize (equivalent to
  54  * prepare_shallow_info with a NULL oid_array).
  55  */
  56 struct shallow_info {
  57         struct oid_array *shallow;
  58         int *ours, nr_ours;
  59         int *theirs, nr_theirs;
  60         struct oid_array *ref;
  61
  62         /* for receive-pack */
  63         uint32_t **used_shallow;
  64         int *need_reachability_test;
  65         int *reachable;
  66         int *shallow_ref;
  67         struct commit **commits;
  68         int nr_commits;
  69 };
  70
  71 void prepare_shallow_info(struct shallow_info *, struct oid_array *);
  72 void clear_shallow_info(struct shallow_info *);
  73 void remove_nonexistent_theirs_shallow(struct shallow_info *);
  74 void assign_shallow_commits_to_refs(struct shallow_info *info,
  75                                     uint32_t **used,
  76                                     int *ref_status);
  77 int delayed_reachability_test(struct shallow_info *si, int c);
  78
  79 extern struct trace_key trace_shallow;
  80
  81 #endif /* SHALLOW_H */