1 13b2bc37 2022-10-23 stsp /*
  2 13b2bc37 2022-10-23 stsp  * Copyright (c) 2020 Ori Bernstein
  3 13b2bc37 2022-10-23 stsp  * Copyright (c) 2021, 2022 Stefan Sperling <stsp@openbsd.org>
  4 13b2bc37 2022-10-23 stsp  *
  5 13b2bc37 2022-10-23 stsp  * Permission to use, copy, modify, and distribute this software for any
  6 13b2bc37 2022-10-23 stsp  * purpose with or without fee is hereby granted, provided that the above
  7 13b2bc37 2022-10-23 stsp  * copyright notice and this permission notice appear in all copies.
  8 13b2bc37 2022-10-23 stsp  *
  9 13b2bc37 2022-10-23 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 10 13b2bc37 2022-10-23 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 11 13b2bc37 2022-10-23 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 12 13b2bc37 2022-10-23 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 13 13b2bc37 2022-10-23 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 14 13b2bc37 2022-10-23 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 15 13b2bc37 2022-10-23 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 16 13b2bc37 2022-10-23 stsp  */
 17 13b2bc37 2022-10-23 stsp 
 18 13b2bc37 2022-10-23 stsp #include <sys/types.h>
 19 13b2bc37 2022-10-23 stsp #include <sys/queue.h>
 20 13b2bc37 2022-10-23 stsp #include <sys/tree.h>
 21 13b2bc37 2022-10-23 stsp #include <sys/uio.h>
 22 13b2bc37 2022-10-23 stsp 
 23 13b2bc37 2022-10-23 stsp #include <sha1.h>
 24 13b2bc37 2022-10-23 stsp #include <limits.h>
 25 13b2bc37 2022-10-23 stsp #include <stdio.h>
 26 13b2bc37 2022-10-23 stsp #include <stdint.h>
 27 13b2bc37 2022-10-23 stsp #include <stdlib.h>
 28 13b2bc37 2022-10-23 stsp #include <string.h>
 29 13b2bc37 2022-10-23 stsp #include <time.h>
 30 13b2bc37 2022-10-23 stsp #include <imsg.h>
 31 13b2bc37 2022-10-23 stsp #include <inttypes.h>
 32 13b2bc37 2022-10-23 stsp #include <unistd.h>
 33 13b2bc37 2022-10-23 stsp 
 34 13b2bc37 2022-10-23 stsp #include "got_error.h"
 35 13b2bc37 2022-10-23 stsp #include "got_cancel.h"
 36 13b2bc37 2022-10-23 stsp #include "got_object.h"
 37 13b2bc37 2022-10-23 stsp #include "got_reference.h"
 38 13b2bc37 2022-10-23 stsp #include "got_repository_admin.h"
 39 13b2bc37 2022-10-23 stsp #include "got_path.h"
 40 13b2bc37 2022-10-23 stsp 
 41 13b2bc37 2022-10-23 stsp #include "got_lib_delta.h"
 42 13b2bc37 2022-10-23 stsp #include "got_lib_object.h"
 43 13b2bc37 2022-10-23 stsp #include "got_lib_object_cache.h"
 44 13b2bc37 2022-10-23 stsp #include "got_lib_object_idset.h"
 45 13b2bc37 2022-10-23 stsp #include "got_lib_ratelimit.h"
 46 13b2bc37 2022-10-23 stsp #include "got_lib_pack.h"
 47 13b2bc37 2022-10-23 stsp #include "got_lib_pack_create.h"
 48 13b2bc37 2022-10-23 stsp #include "got_lib_repository.h"
 49 13b2bc37 2022-10-23 stsp 
 50 13b2bc37 2022-10-23 stsp static const struct got_error *
 51 13b2bc37 2022-10-23 stsp get_base_object_id(struct got_object_id *base_id, struct got_packidx *packidx,
 52 13b2bc37 2022-10-23 stsp     off_t base_offset)
 53 13b2bc37 2022-10-23 stsp {
 54 13b2bc37 2022-10-23 stsp 	const struct got_error *err;
 55 13b2bc37 2022-10-23 stsp 	int idx;
 56 13b2bc37 2022-10-23 stsp 
 57 13b2bc37 2022-10-23 stsp 	err = got_packidx_get_offset_idx(&idx, packidx, base_offset);
 58 13b2bc37 2022-10-23 stsp 	if (err)
 59 13b2bc37 2022-10-23 stsp 		return err;
 60 13b2bc37 2022-10-23 stsp 	if (idx == -1)
 61 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_BAD_PACKIDX);
 62 13b2bc37 2022-10-23 stsp 
 63 13b2bc37 2022-10-23 stsp 	return got_packidx_get_object_id(base_id, packidx, idx);
 64 13b2bc37 2022-10-23 stsp }
 65 13b2bc37 2022-10-23 stsp 
 66 13b2bc37 2022-10-23 stsp struct search_deltas_arg {
 67 13b2bc37 2022-10-23 stsp 	struct got_pack_metavec *v;
 68 13b2bc37 2022-10-23 stsp 	struct got_packidx *packidx;
 69 13b2bc37 2022-10-23 stsp 	struct got_pack *pack;
 70 13b2bc37 2022-10-23 stsp 	struct got_object_idset *idset;
 71 13b2bc37 2022-10-23 stsp 	int ncolored, nfound, ntrees, ncommits;
 72 13b2bc37 2022-10-23 stsp 	got_pack_progress_cb progress_cb;
 73 13b2bc37 2022-10-23 stsp 	void *progress_arg;
 74 13b2bc37 2022-10-23 stsp 	struct got_ratelimit *rl;
 75 13b2bc37 2022-10-23 stsp 	got_cancel_cb cancel_cb;
 76 13b2bc37 2022-10-23 stsp 	void *cancel_arg;
 77 13b2bc37 2022-10-23 stsp };
 78 13b2bc37 2022-10-23 stsp 
 79 13b2bc37 2022-10-23 stsp static const struct got_error *
 80 13b2bc37 2022-10-23 stsp search_delta_for_object(struct got_object_id *id, void *data, void *arg)
 81 13b2bc37 2022-10-23 stsp {
 82 13b2bc37 2022-10-23 stsp 	const struct got_error *err;
 83 13b2bc37 2022-10-23 stsp 	struct search_deltas_arg *a = arg;
 84 13b2bc37 2022-10-23 stsp 	int obj_idx;
 85 13b2bc37 2022-10-23 stsp 	uint8_t *delta_buf = NULL;
 86 13b2bc37 2022-10-23 stsp 	uint64_t base_size, result_size;
 87 13b2bc37 2022-10-23 stsp 	size_t delta_size, delta_compressed_size;
 88 24b7de1c 2022-12-03 stsp 	off_t delta_offset, delta_data_offset, base_offset;
 89 13b2bc37 2022-10-23 stsp 	struct got_object_id base_id;
 90 13b2bc37 2022-10-23 stsp 
 91 13b2bc37 2022-10-23 stsp 	if (a->cancel_cb) {
 92 13b2bc37 2022-10-23 stsp 		err = a->cancel_cb(a->cancel_arg);
 93 13b2bc37 2022-10-23 stsp 		if (err)
 94 13b2bc37 2022-10-23 stsp 			return err;
 95 13b2bc37 2022-10-23 stsp 	}
 96 13b2bc37 2022-10-23 stsp 
 97 13b2bc37 2022-10-23 stsp 	obj_idx = got_packidx_get_object_idx(a->packidx, id);
 98 13b2bc37 2022-10-23 stsp 	if (obj_idx == -1)
 99 13b2bc37 2022-10-23 stsp 		return NULL; /* object not present in our pack file */
100 13b2bc37 2022-10-23 stsp 
101 13b2bc37 2022-10-23 stsp 	err = got_packfile_extract_raw_delta(&delta_buf, &delta_size,
102 24b7de1c 2022-12-03 stsp 	    &delta_compressed_size, &delta_offset, &delta_data_offset,
103 24b7de1c 2022-12-03 stsp 	    &base_offset, &base_id, &base_size, &result_size,
104 24b7de1c 2022-12-03 stsp 	    a->pack, a->packidx, obj_idx);
105 13b2bc37 2022-10-23 stsp 	if (err) {
106 13b2bc37 2022-10-23 stsp 		if (err->code == GOT_ERR_OBJ_TYPE)
107 13b2bc37 2022-10-23 stsp 			return NULL; /* object not stored as a delta */
108 13b2bc37 2022-10-23 stsp 		return err;
109 13b2bc37 2022-10-23 stsp 	}
110 13b2bc37 2022-10-23 stsp 
111 13b2bc37 2022-10-23 stsp 	/*
112 13b2bc37 2022-10-23 stsp 	 * If this is an offset delta we must determine the base
113 13b2bc37 2022-10-23 stsp 	 * object ID ourselves.
114 13b2bc37 2022-10-23 stsp 	 */
115 13b2bc37 2022-10-23 stsp 	if (base_offset != 0) {
116 13b2bc37 2022-10-23 stsp 		err = get_base_object_id(&base_id, a->packidx, base_offset);
117 13b2bc37 2022-10-23 stsp 		if (err)
118 13b2bc37 2022-10-23 stsp 			goto done;
119 13b2bc37 2022-10-23 stsp 	}
120 13b2bc37 2022-10-23 stsp 
121 13b2bc37 2022-10-23 stsp 	if (got_object_idset_contains(a->idset, &base_id)) {
122 13b2bc37 2022-10-23 stsp 		struct got_pack_meta *m, *base;
123 13b2bc37 2022-10-23 stsp 
124 13b2bc37 2022-10-23 stsp 		m = got_object_idset_get(a->idset, id);
125 13b2bc37 2022-10-23 stsp 		if (m == NULL) {
126 13b2bc37 2022-10-23 stsp 			err = got_error_msg(GOT_ERR_NO_OBJ,
127 13b2bc37 2022-10-23 stsp 			    "delta object not found");
128 13b2bc37 2022-10-23 stsp 			goto done;
129 13b2bc37 2022-10-23 stsp 		}
130 13b2bc37 2022-10-23 stsp 
131 13b2bc37 2022-10-23 stsp 		base = got_object_idset_get(a->idset, &base_id);
132 13b2bc37 2022-10-23 stsp 		if (m == NULL) {
133 13b2bc37 2022-10-23 stsp 			err = got_error_msg(GOT_ERR_NO_OBJ,
134 13b2bc37 2022-10-23 stsp 			    "delta base object not found");
135 13b2bc37 2022-10-23 stsp 			goto done;
136 13b2bc37 2022-10-23 stsp 		}
137 13b2bc37 2022-10-23 stsp 
138 13b2bc37 2022-10-23 stsp 		m->base_obj_id = got_object_id_dup(&base_id);
139 13b2bc37 2022-10-23 stsp 		if (m->base_obj_id == NULL) {
140 13b2bc37 2022-10-23 stsp 			err = got_error_from_errno("got_object_id_dup");
141 13b2bc37 2022-10-23 stsp 			goto done;
142 13b2bc37 2022-10-23 stsp 		}
143 13b2bc37 2022-10-23 stsp 
144 13b2bc37 2022-10-23 stsp 		m->prev = base;
145 13b2bc37 2022-10-23 stsp 		m->size = result_size;
146 13b2bc37 2022-10-23 stsp 		m->delta_len = delta_size;
147 13b2bc37 2022-10-23 stsp 		m->delta_compressed_len = delta_compressed_size;
148 24b7de1c 2022-12-03 stsp 		m->reused_delta_offset = delta_data_offset;
149 24b7de1c 2022-12-03 stsp 		m->delta_offset = 0;
150 13b2bc37 2022-10-23 stsp 
151 13b2bc37 2022-10-23 stsp 		err = got_pack_add_meta(m, a->v);
152 13b2bc37 2022-10-23 stsp 		if (err)
153 13b2bc37 2022-10-23 stsp 			goto done;
154 13b2bc37 2022-10-23 stsp 
155 13b2bc37 2022-10-23 stsp 		err = got_pack_report_progress(a->progress_cb, a->progress_arg,
156 13b2bc37 2022-10-23 stsp 		    a->rl, a->ncolored, a->nfound, a->ntrees, 0L, a->ncommits,
157 13b2bc37 2022-10-23 stsp 		    got_object_idset_num_elements(a->idset), a->v->nmeta, 0);
158 13b2bc37 2022-10-23 stsp 		if (err)
159 13b2bc37 2022-10-23 stsp 			goto done;
160 13b2bc37 2022-10-23 stsp 	}
161 13b2bc37 2022-10-23 stsp done:
162 13b2bc37 2022-10-23 stsp 	free(delta_buf);
163 13b2bc37 2022-10-23 stsp 	return err;
164 13b2bc37 2022-10-23 stsp }
165 13b2bc37 2022-10-23 stsp 
166 13b2bc37 2022-10-23 stsp const struct got_error *
167 24b7de1c 2022-12-03 stsp got_pack_search_deltas(struct got_packidx **packidx, struct got_pack **pack,
168 24b7de1c 2022-12-03 stsp     struct got_pack_metavec *v, struct got_object_idset *idset,
169 13b2bc37 2022-10-23 stsp     int ncolored, int nfound, int ntrees, int ncommits,
170 13b2bc37 2022-10-23 stsp     struct got_repository *repo,
171 13b2bc37 2022-10-23 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
172 13b2bc37 2022-10-23 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
173 13b2bc37 2022-10-23 stsp {
174 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
175 13b2bc37 2022-10-23 stsp 	struct search_deltas_arg sda;
176 13b2bc37 2022-10-23 stsp 
177 24b7de1c 2022-12-03 stsp 	*packidx = NULL;
178 24b7de1c 2022-12-03 stsp 	*pack = NULL;
179 24b7de1c 2022-12-03 stsp 
180 24b7de1c 2022-12-03 stsp 	err = got_pack_find_pack_for_reuse(packidx, repo);
181 13b2bc37 2022-10-23 stsp 	if (err)
182 13b2bc37 2022-10-23 stsp 		return err;
183 13b2bc37 2022-10-23 stsp 
184 24b7de1c 2022-12-03 stsp 	if (*packidx == NULL)
185 13b2bc37 2022-10-23 stsp 		return NULL;
186 13b2bc37 2022-10-23 stsp 
187 24b7de1c 2022-12-03 stsp 	err = got_pack_cache_pack_for_packidx(pack, *packidx, repo);
188 13b2bc37 2022-10-23 stsp 	if (err)
189 13b2bc37 2022-10-23 stsp 		return err;
190 13b2bc37 2022-10-23 stsp 
191 13b2bc37 2022-10-23 stsp 	memset(&sda, 0, sizeof(sda));
192 13b2bc37 2022-10-23 stsp 	sda.v = v;
193 13b2bc37 2022-10-23 stsp 	sda.idset = idset;
194 24b7de1c 2022-12-03 stsp 	sda.pack = *pack;
195 24b7de1c 2022-12-03 stsp 	sda.packidx = *packidx;
196 13b2bc37 2022-10-23 stsp 	sda.ncolored = ncolored;
197 13b2bc37 2022-10-23 stsp 	sda.nfound = nfound;
198 13b2bc37 2022-10-23 stsp 	sda.ntrees = ntrees;
199 13b2bc37 2022-10-23 stsp 	sda.ncommits = ncommits;
200 13b2bc37 2022-10-23 stsp 	sda.progress_cb = progress_cb;
201 13b2bc37 2022-10-23 stsp 	sda.progress_arg = progress_arg;
202 13b2bc37 2022-10-23 stsp 	sda.rl = rl;
203 13b2bc37 2022-10-23 stsp 	sda.cancel_cb = cancel_cb;
204 13b2bc37 2022-10-23 stsp 	sda.cancel_arg = cancel_arg;
205 13b2bc37 2022-10-23 stsp 	return got_object_idset_for_each(idset, search_delta_for_object, &sda);
206 13b2bc37 2022-10-23 stsp }
207 13b2bc37 2022-10-23 stsp 
208 13b2bc37 2022-10-23 stsp const struct got_error *
209 13b2bc37 2022-10-23 stsp got_pack_load_packed_object_ids(int *found_all_objects,
210 13b2bc37 2022-10-23 stsp     struct got_object_id **ours, int nours,
211 13b2bc37 2022-10-23 stsp     struct got_object_id **theirs, int ntheirs,
212 13b2bc37 2022-10-23 stsp     int want_meta, uint32_t seed, struct got_object_idset *idset,
213 13b2bc37 2022-10-23 stsp     struct got_object_idset *idset_exclude, int loose_obj_only,
214 13b2bc37 2022-10-23 stsp     struct got_repository *repo, struct got_packidx *packidx,
215 13b2bc37 2022-10-23 stsp     int *ncolored, int *nfound, int *ntrees,
216 13b2bc37 2022-10-23 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
217 13b2bc37 2022-10-23 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
218 13b2bc37 2022-10-23 stsp {
219 13b2bc37 2022-10-23 stsp 	/* We do not need this optimized traversal while using direct I/O. */
220 13b2bc37 2022-10-23 stsp 	*found_all_objects = 0;
221 13b2bc37 2022-10-23 stsp 	return NULL;
222 13b2bc37 2022-10-23 stsp }
223 13b2bc37 2022-10-23 stsp 
224 13b2bc37 2022-10-23 stsp const struct got_error *
225 13b2bc37 2022-10-23 stsp got_pack_paint_commits(int *ncolored, struct got_object_id_queue *ids, int nids,
226 13b2bc37 2022-10-23 stsp     struct got_object_idset *keep, struct got_object_idset *drop,
227 13b2bc37 2022-10-23 stsp     struct got_object_idset *skip, struct got_repository *repo,
228 13b2bc37 2022-10-23 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
229 13b2bc37 2022-10-23 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
230 13b2bc37 2022-10-23 stsp {
231 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
232 13b2bc37 2022-10-23 stsp 	struct got_commit_object *commit = NULL;
233 13b2bc37 2022-10-23 stsp 	struct got_packidx *packidx = NULL;
234 13b2bc37 2022-10-23 stsp 	struct got_pack *pack = NULL;
235 13b2bc37 2022-10-23 stsp 	const struct got_object_id_queue *parents;
236 13b2bc37 2022-10-23 stsp 	struct got_object_qid *qid = NULL;
237 13b2bc37 2022-10-23 stsp 	int nqueued = nids, nskip = 0;
238 13b2bc37 2022-10-23 stsp 
239 13b2bc37 2022-10-23 stsp 	while (!STAILQ_EMPTY(ids) && nskip != nqueued) {
240 13b2bc37 2022-10-23 stsp 		intptr_t color;
241 13b2bc37 2022-10-23 stsp 
242 13b2bc37 2022-10-23 stsp 		if (cancel_cb) {
243 13b2bc37 2022-10-23 stsp 			err = cancel_cb(cancel_arg);
244 13b2bc37 2022-10-23 stsp 			if (err)
245 13b2bc37 2022-10-23 stsp 				break;
246 13b2bc37 2022-10-23 stsp 		}
247 13b2bc37 2022-10-23 stsp 
248 13b2bc37 2022-10-23 stsp 		qid = STAILQ_FIRST(ids);
249 13b2bc37 2022-10-23 stsp 		STAILQ_REMOVE_HEAD(ids, entry);
250 13b2bc37 2022-10-23 stsp 		nqueued--;
251 13b2bc37 2022-10-23 stsp 		color = (intptr_t)qid->data;
252 13b2bc37 2022-10-23 stsp 		if (color == COLOR_SKIP)
253 13b2bc37 2022-10-23 stsp 			nskip--;
254 13b2bc37 2022-10-23 stsp 
255 13b2bc37 2022-10-23 stsp 		if (got_object_idset_contains(skip, &qid->id)) {
256 13b2bc37 2022-10-23 stsp 			got_object_qid_free(qid);
257 13b2bc37 2022-10-23 stsp 			qid = NULL;
258 13b2bc37 2022-10-23 stsp 			continue;
259 13b2bc37 2022-10-23 stsp 		}
260 13b2bc37 2022-10-23 stsp 		if (color == COLOR_KEEP &&
261 13b2bc37 2022-10-23 stsp 		    got_object_idset_contains(keep, &qid->id)) {
262 13b2bc37 2022-10-23 stsp 			got_object_qid_free(qid);
263 13b2bc37 2022-10-23 stsp 			qid = NULL;
264 13b2bc37 2022-10-23 stsp 			continue;
265 13b2bc37 2022-10-23 stsp 		}
266 13b2bc37 2022-10-23 stsp 		if (color == COLOR_DROP &&
267 13b2bc37 2022-10-23 stsp 		    got_object_idset_contains(drop, &qid->id)) {
268 13b2bc37 2022-10-23 stsp 			got_object_qid_free(qid);
269 13b2bc37 2022-10-23 stsp 			qid = NULL;
270 13b2bc37 2022-10-23 stsp 			continue;
271 13b2bc37 2022-10-23 stsp 		}
272 13b2bc37 2022-10-23 stsp 
273 13b2bc37 2022-10-23 stsp 		switch (color) {
274 13b2bc37 2022-10-23 stsp 		case COLOR_KEEP:
275 13b2bc37 2022-10-23 stsp 			if (got_object_idset_contains(drop, &qid->id)) {
276 13b2bc37 2022-10-23 stsp 				err = got_pack_paint_commit(qid, COLOR_SKIP);
277 13b2bc37 2022-10-23 stsp 				if (err)
278 13b2bc37 2022-10-23 stsp 					goto done;
279 13b2bc37 2022-10-23 stsp 			} else
280 13b2bc37 2022-10-23 stsp 				(*ncolored)++;
281 13b2bc37 2022-10-23 stsp 			err = got_object_idset_add(keep, &qid->id, NULL);
282 13b2bc37 2022-10-23 stsp 			if (err)
283 13b2bc37 2022-10-23 stsp 				goto done;
284 13b2bc37 2022-10-23 stsp 			break;
285 13b2bc37 2022-10-23 stsp 		case COLOR_DROP:
286 13b2bc37 2022-10-23 stsp 			if (got_object_idset_contains(keep, &qid->id)) {
287 13b2bc37 2022-10-23 stsp 				err = got_pack_paint_commit(qid, COLOR_SKIP);
288 13b2bc37 2022-10-23 stsp 				if (err)
289 13b2bc37 2022-10-23 stsp 					goto done;
290 13b2bc37 2022-10-23 stsp 			} else
291 13b2bc37 2022-10-23 stsp 				(*ncolored)++;
292 13b2bc37 2022-10-23 stsp 			err = got_object_idset_add(drop, &qid->id, NULL);
293 13b2bc37 2022-10-23 stsp 			if (err)
294 13b2bc37 2022-10-23 stsp 				goto done;
295 13b2bc37 2022-10-23 stsp 			break;
296 13b2bc37 2022-10-23 stsp 		case COLOR_SKIP:
297 13b2bc37 2022-10-23 stsp 			if (!got_object_idset_contains(skip, &qid->id)) {
298 13b2bc37 2022-10-23 stsp 				err = got_object_idset_add(skip, &qid->id,
299 13b2bc37 2022-10-23 stsp 				    NULL);
300 13b2bc37 2022-10-23 stsp 				if (err)
301 13b2bc37 2022-10-23 stsp 					goto done;
302 13b2bc37 2022-10-23 stsp 			}
303 13b2bc37 2022-10-23 stsp 			break;
304 13b2bc37 2022-10-23 stsp 		default:
305 13b2bc37 2022-10-23 stsp 			/* should not happen */
306 13b2bc37 2022-10-23 stsp 			err = got_error_fmt(GOT_ERR_NOT_IMPL,
307 13b2bc37 2022-10-23 stsp 			    "%s invalid commit color %"PRIdPTR, __func__,
308 13b2bc37 2022-10-23 stsp 			    color);
309 13b2bc37 2022-10-23 stsp 			goto done;
310 13b2bc37 2022-10-23 stsp 		}
311 13b2bc37 2022-10-23 stsp 
312 13b2bc37 2022-10-23 stsp 		err = got_pack_report_progress(progress_cb, progress_arg, rl,
313 13b2bc37 2022-10-23 stsp 		    *ncolored, 0, 0, 0L, 0, 0, 0, 0);
314 13b2bc37 2022-10-23 stsp 		if (err)
315 13b2bc37 2022-10-23 stsp 			break;
316 13b2bc37 2022-10-23 stsp 
317 13b2bc37 2022-10-23 stsp 		err = got_object_open_as_commit(&commit, repo, &qid->id);
318 13b2bc37 2022-10-23 stsp 		if (err)
319 13b2bc37 2022-10-23 stsp 			break;
320 13b2bc37 2022-10-23 stsp 
321 13b2bc37 2022-10-23 stsp 		parents = got_object_commit_get_parent_ids(commit);
322 13b2bc37 2022-10-23 stsp 		if (parents) {
323 13b2bc37 2022-10-23 stsp 			struct got_object_qid *pid;
324 13b2bc37 2022-10-23 stsp 			color = (intptr_t)qid->data;
325 13b2bc37 2022-10-23 stsp 			STAILQ_FOREACH(pid, parents, entry) {
326 13b2bc37 2022-10-23 stsp 				err = got_pack_queue_commit_id(ids, &pid->id,
327 13b2bc37 2022-10-23 stsp 				    color, repo);
328 13b2bc37 2022-10-23 stsp 				if (err)
329 13b2bc37 2022-10-23 stsp 					break;
330 13b2bc37 2022-10-23 stsp 				nqueued++;
331 13b2bc37 2022-10-23 stsp 				if (color == COLOR_SKIP)
332 13b2bc37 2022-10-23 stsp 					nskip++;
333 13b2bc37 2022-10-23 stsp 			}
334 13b2bc37 2022-10-23 stsp 		}
335 13b2bc37 2022-10-23 stsp 
336 13b2bc37 2022-10-23 stsp 		if (pack == NULL && (commit->flags & GOT_COMMIT_FLAG_PACKED)) {
337 13b2bc37 2022-10-23 stsp 			/*
338 13b2bc37 2022-10-23 stsp 			 * We now know that at least one pack file exists.
339 13b2bc37 2022-10-23 stsp 			 * Pin a suitable pack to ensure it remains cached
340 13b2bc37 2022-10-23 stsp 			 * while we are churning through commit history.
341 13b2bc37 2022-10-23 stsp 			 */
342 13b2bc37 2022-10-23 stsp 			if (packidx == NULL) {
343 13b2bc37 2022-10-23 stsp 				err = got_pack_find_pack_for_commit_painting(
344 13b2bc37 2022-10-23 stsp 				    &packidx, ids, nqueued, repo);
345 13b2bc37 2022-10-23 stsp 				if (err)
346 13b2bc37 2022-10-23 stsp 					goto done;
347 13b2bc37 2022-10-23 stsp 			}
348 13b2bc37 2022-10-23 stsp 			if (packidx != NULL) {
349 13b2bc37 2022-10-23 stsp 				err = got_pack_cache_pack_for_packidx(&pack,
350 13b2bc37 2022-10-23 stsp 				    packidx, repo);
351 13b2bc37 2022-10-23 stsp 				if (err)
352 13b2bc37 2022-10-23 stsp 					goto done;
353 13b2bc37 2022-10-23 stsp 				err = got_repo_pin_pack(repo, packidx, pack);
354 13b2bc37 2022-10-23 stsp 				if (err)
355 13b2bc37 2022-10-23 stsp 					goto done;
356 13b2bc37 2022-10-23 stsp 			}
357 13b2bc37 2022-10-23 stsp 		}
358 13b2bc37 2022-10-23 stsp 
359 13b2bc37 2022-10-23 stsp 		got_object_commit_close(commit);
360 13b2bc37 2022-10-23 stsp 		commit = NULL;
361 13b2bc37 2022-10-23 stsp 
362 13b2bc37 2022-10-23 stsp 		got_object_qid_free(qid);
363 13b2bc37 2022-10-23 stsp 		qid = NULL;
364 13b2bc37 2022-10-23 stsp 	}
365 13b2bc37 2022-10-23 stsp done:
366 13b2bc37 2022-10-23 stsp 	if (commit)
367 13b2bc37 2022-10-23 stsp 		got_object_commit_close(commit);
368 13b2bc37 2022-10-23 stsp 	got_object_qid_free(qid);
369 13b2bc37 2022-10-23 stsp 	got_repo_unpin_pack(repo);
370 13b2bc37 2022-10-23 stsp 	return err;
371 13b2bc37 2022-10-23 stsp }