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/*
* Copyright (c) 2021 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Write pack file data into the provided open packfile handle, for all
* objects reachable via the commits listed in 'ours'.
* Exclude any objects for commits listed in 'theirs' if 'theirs' is not NULL.
* Return the hash digest of the resulting pack file in pack_hash which must
* be pre-allocated by the caller with at least GOT_HASH_DIGEST_MAXLEN bytes.
*/
const struct got_error *got_pack_create(struct got_object_id *pack_hash,
int packfd, FILE *delta_cache, struct got_object_id **theirs, int ntheirs,
struct got_object_id **ours, int nours,
struct got_repository *repo, int loose_obj_only, int allow_empty,
int force_refdelta, got_pack_progress_cb progress_cb, void *progress_arg,
struct got_ratelimit *, got_cancel_cb cancel_cb, void *cancel_arg);
const struct got_error *
got_pack_cache_pack_for_packidx(struct got_pack **pack,
struct got_packidx *packidx, struct got_repository *repo);
const struct got_error *
got_pack_find_pack_for_commit_painting(struct got_packidx **best_packidx,
struct got_object_id_queue *ids, struct got_repository *repo);
const struct got_error *got_pack_find_pack_for_reuse(
struct got_packidx **best_packidx, struct got_repository *repo);
struct got_ratelimit;
const struct got_error *got_pack_paint_commits(int *ncolored,
struct got_object_id_queue *ids, int nids,
struct got_object_idset *keep, struct got_object_idset *drop,
struct got_object_idset *skip, struct got_repository *repo,
got_pack_progress_cb progress_cb, void *progress_arg,
struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg);
enum got_pack_findtwixt_color {
COLOR_KEEP = 0,
COLOR_DROP,
COLOR_SKIP,
COLOR_MAX,
};
const struct got_error *got_pack_paint_commit(struct got_object_qid *qid,
intptr_t color);
const struct got_error *got_pack_queue_commit_id(
struct got_object_id_queue *ids, struct got_object_id *id, intptr_t color,
struct got_repository *repo);
struct got_pack_metavec {
struct got_pack_meta **meta;
int nmeta;
int metasz;
};
struct got_pack_meta {
struct got_object_id id;
uint32_t path_hash;
int obj_type;
off_t size;
time_t mtime;
/* The best delta we picked */
struct got_pack_meta *head;
struct got_pack_meta *prev;
unsigned char *delta_buf; /* if encoded in memory (compressed) */
off_t delta_offset; /* offset in delta cache file (compressed) */
off_t delta_len; /* encoded delta length */
off_t delta_compressed_len; /* encoded+compressed delta length */
int nchain;
off_t reused_delta_offset; /* offset of delta in reused pack file */
struct got_object_id *base_obj_id;
/* Only used for delta window */
struct got_delta_table *dtab;
/* Only used for writing offset deltas */
off_t off;
};
const struct got_error *got_pack_add_meta(struct got_pack_meta *m,
struct got_pack_metavec *v);
const struct got_error *
got_pack_search_deltas(struct got_packidx **packidx, struct got_pack **pack,
struct got_pack_metavec *v, struct got_object_idset *idset,
int ncolored, int nfound, int ntrees, int ncommits,
struct got_repository *repo,
got_pack_progress_cb progress_cb, void *progress_arg,
struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg);
const struct got_error *
got_pack_report_progress(got_pack_progress_cb progress_cb, void *progress_arg,
struct got_ratelimit *rl, int ncolored, int nfound, int ntrees,
off_t packfile_size, int ncommits, int nobj_total, int obj_deltify,
int nobj_written, int pack_done);
const struct got_error *
got_pack_load_packed_object_ids(int *found_all_objects,
struct got_object_id **ours, int nours,
struct got_object_id **theirs, int ntheirs,
int want_meta, uint32_t seed, struct got_object_idset *idset,
struct got_object_idset *idset_exclude, int loose_obj_only,
struct got_repository *repo, struct got_packidx *packidx,
int *ncolored, int *nfound, int *ntrees,
got_pack_progress_cb progress_cb, void *progress_arg,
struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg);
const struct got_error *
got_pack_load_tree_entries(struct got_object_id_queue *ids, int want_meta,
struct got_object_idset *idset, struct got_object_idset *idset_exclude,
struct got_tree_object *tree,
const char *dpath, time_t mtime, uint32_t seed, struct got_repository *repo,
int loose_obj_only, int *ncolored, int *nfound, int *ntrees,
got_pack_progress_cb progress_cb, void *progress_arg,
struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg);
const struct got_error *
got_pack_load_tree(int want_meta, struct got_object_idset *idset,
struct got_object_idset *idset_exclude,
struct got_object_id *tree_id, const char *dpath, time_t mtime,
uint32_t seed, struct got_repository *repo, int loose_obj_only,
int *ncolored, int *nfound, int *ntrees,
got_pack_progress_cb progress_cb, void *progress_arg,
struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg);
const struct got_error *
got_pack_add_object(int want_meta, struct got_object_idset *idset,
struct got_object_id *id, const char *path, int obj_type,
time_t mtime, uint32_t seed, int loose_obj_only,
struct got_repository *repo, int *ncolored, int *nfound, int *ntrees,
got_pack_progress_cb progress_cb, void *progress_arg,
struct got_ratelimit *rl);
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