1 e6bcace5 2021-06-22 stsp /*
   2 e6bcace5 2021-06-22 stsp  * Copyright (c) 2020 Ori Bernstein
   3 e6bcace5 2021-06-22 stsp  * Copyright (c) 2021 Stefan Sperling <stsp@openbsd.org>
   4 e6bcace5 2021-06-22 stsp  *
   5 e6bcace5 2021-06-22 stsp  * Permission to use, copy, modify, and distribute this software for any
   6 e6bcace5 2021-06-22 stsp  * purpose with or without fee is hereby granted, provided that the above
   7 e6bcace5 2021-06-22 stsp  * copyright notice and this permission notice appear in all copies.
   8 e6bcace5 2021-06-22 stsp  *
   9 e6bcace5 2021-06-22 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10 e6bcace5 2021-06-22 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11 e6bcace5 2021-06-22 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12 e6bcace5 2021-06-22 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13 e6bcace5 2021-06-22 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14 e6bcace5 2021-06-22 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15 e6bcace5 2021-06-22 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16 e6bcace5 2021-06-22 stsp  */
  17 e6bcace5 2021-06-22 stsp 
  18 08736cf9 2021-06-23 stsp #include <sys/types.h>
  19 e6bcace5 2021-06-22 stsp #include <sys/queue.h>
  20 f8b19efd 2021-10-13 stsp #include <sys/tree.h>
  21 08736cf9 2021-06-23 stsp #include <sys/uio.h>
  22 e6bcace5 2021-06-22 stsp #include <sys/stat.h>
  23 211cfef0 2022-01-05 stsp #include <sys/time.h>
  24 e6bcace5 2021-06-22 stsp 
  25 e3f86256 2022-02-18 naddy #include <endian.h>
  26 08736cf9 2021-06-23 stsp #include <stdint.h>
  27 05118f5a 2021-06-22 stsp #include <imsg.h>
  28 e6bcace5 2021-06-22 stsp #include <stdio.h>
  29 e6bcace5 2021-06-22 stsp #include <stdlib.h>
  30 e6bcace5 2021-06-22 stsp #include <string.h>
  31 e6bcace5 2021-06-22 stsp #include <sha1.h>
  32 211cfef0 2022-01-05 stsp #include <time.h>
  33 bfc73a47 2022-03-19 naddy #include <unistd.h>
  34 e6bcace5 2021-06-22 stsp #include <limits.h>
  35 e6bcace5 2021-06-22 stsp #include <zlib.h>
  36 e6bcace5 2021-06-22 stsp 
  37 e6bcace5 2021-06-22 stsp #include "got_error.h"
  38 e6bcace5 2021-06-22 stsp #include "got_cancel.h"
  39 e6bcace5 2021-06-22 stsp #include "got_object.h"
  40 f8b19efd 2021-10-13 stsp #include "got_path.h"
  41 05118f5a 2021-06-22 stsp #include "got_reference.h"
  42 05118f5a 2021-06-22 stsp #include "got_repository_admin.h"
  43 08347b73 2021-10-14 stsp #include "got_opentemp.h"
  44 e6bcace5 2021-06-22 stsp 
  45 e6bcace5 2021-06-22 stsp #include "got_lib_deltify.h"
  46 e6bcace5 2021-06-22 stsp #include "got_lib_delta.h"
  47 e6bcace5 2021-06-22 stsp #include "got_lib_object.h"
  48 e6bcace5 2021-06-22 stsp #include "got_lib_object_idset.h"
  49 05118f5a 2021-06-22 stsp #include "got_lib_object_cache.h"
  50 e6bcace5 2021-06-22 stsp #include "got_lib_deflate.h"
  51 e6bcace5 2021-06-22 stsp #include "got_lib_pack.h"
  52 05118f5a 2021-06-22 stsp #include "got_lib_privsep.h"
  53 05118f5a 2021-06-22 stsp #include "got_lib_repository.h"
  54 211cfef0 2022-01-05 stsp #include "got_lib_ratelimit.h"
  55 2d9e6abf 2022-05-04 stsp #include "got_lib_inflate.h"
  56 e6bcace5 2021-06-22 stsp 
  57 74881701 2021-10-15 stsp #ifndef MIN
  58 74881701 2021-10-15 stsp #define	MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
  59 74881701 2021-10-15 stsp #endif
  60 74881701 2021-10-15 stsp 
  61 e6bcace5 2021-06-22 stsp #ifndef MAX
  62 e6bcace5 2021-06-22 stsp #define	MAX(_a,_b) ((_a) > (_b) ? (_a) : (_b))
  63 e6bcace5 2021-06-22 stsp #endif
  64 e6bcace5 2021-06-22 stsp 
  65 70f8f24d 2022-04-14 stsp #ifndef nitems
  66 70f8f24d 2022-04-14 stsp #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
  67 70f8f24d 2022-04-14 stsp #endif
  68 70f8f24d 2022-04-14 stsp 
  69 e6bcace5 2021-06-22 stsp struct got_pack_meta {
  70 e6bcace5 2021-06-22 stsp 	struct got_object_id id;
  71 e6bcace5 2021-06-22 stsp 	char	*path;
  72 e6bcace5 2021-06-22 stsp 	int	obj_type;
  73 600b755e 2021-10-14 stsp 	off_t	size;
  74 e6bcace5 2021-06-22 stsp 	time_t	mtime;
  75 e6bcace5 2021-06-22 stsp 
  76 e6bcace5 2021-06-22 stsp 	/* The best delta we picked */
  77 e6bcace5 2021-06-22 stsp 	struct got_pack_meta *head;
  78 e6bcace5 2021-06-22 stsp 	struct got_pack_meta *prev;
  79 2d9e6abf 2022-05-04 stsp 	unsigned char *delta_buf; /* if encoded in memory (compressed) */
  80 2d9e6abf 2022-05-04 stsp 	off_t	delta_offset;	/* offset in delta cache file (compressed) */
  81 5060d5a1 2022-01-10 stsp 	off_t	delta_len;	/* encoded delta length */
  82 2d9e6abf 2022-05-04 stsp 	off_t	delta_compressed_len; /* encoded+compressed delta length */
  83 e6bcace5 2021-06-22 stsp 	int	nchain;
  84 e6bcace5 2021-06-22 stsp 
  85 67fd6849 2022-02-13 stsp 	int	have_reused_delta;
  86 67fd6849 2022-02-13 stsp 	off_t   reused_delta_offset; /* offset of delta in reused pack file */
  87 67fd6849 2022-02-13 stsp 	struct got_object_id *base_obj_id;
  88 67fd6849 2022-02-13 stsp 
  89 e6bcace5 2021-06-22 stsp 	/* Only used for delta window */
  90 e6bcace5 2021-06-22 stsp 	struct got_delta_table *dtab;
  91 e6bcace5 2021-06-22 stsp 
  92 e6bcace5 2021-06-22 stsp 	/* Only used for writing offset deltas */
  93 e6bcace5 2021-06-22 stsp 	off_t	off;
  94 e6bcace5 2021-06-22 stsp };
  95 e6bcace5 2021-06-22 stsp 
  96 e6bcace5 2021-06-22 stsp struct got_pack_metavec {
  97 e6bcace5 2021-06-22 stsp 	struct got_pack_meta **meta;
  98 e6bcace5 2021-06-22 stsp 	int nmeta;
  99 e6bcace5 2021-06-22 stsp 	int metasz;
 100 e6bcace5 2021-06-22 stsp };
 101 e6bcace5 2021-06-22 stsp 
 102 e6bcace5 2021-06-22 stsp static const struct got_error *
 103 e6bcace5 2021-06-22 stsp alloc_meta(struct got_pack_meta **new, struct got_object_id *id,
 104 e6bcace5 2021-06-22 stsp     const char *path, int obj_type, time_t mtime)
 105 e6bcace5 2021-06-22 stsp {
 106 e6bcace5 2021-06-22 stsp 	const struct got_error *err = NULL;
 107 e6bcace5 2021-06-22 stsp 	struct got_pack_meta *m;
 108 e6bcace5 2021-06-22 stsp 
 109 e6bcace5 2021-06-22 stsp 	*new = NULL;
 110 e6bcace5 2021-06-22 stsp 
 111 e6bcace5 2021-06-22 stsp 	m = calloc(1, sizeof(*m));
 112 e6bcace5 2021-06-22 stsp 	if (m == NULL)
 113 1d19226a 2021-10-13 stsp 		return got_error_from_errno("calloc");
 114 e6bcace5 2021-06-22 stsp 
 115 e6bcace5 2021-06-22 stsp 	memcpy(&m->id, id, sizeof(m->id));
 116 e6bcace5 2021-06-22 stsp 
 117 e6bcace5 2021-06-22 stsp 	m->path = strdup(path);
 118 e6bcace5 2021-06-22 stsp 	if (m->path == NULL) {
 119 e6bcace5 2021-06-22 stsp 		err = got_error_from_errno("strdup");
 120 e6bcace5 2021-06-22 stsp 		free(m);
 121 e6bcace5 2021-06-22 stsp 		return err;
 122 e6bcace5 2021-06-22 stsp 	}
 123 e6bcace5 2021-06-22 stsp 
 124 e6bcace5 2021-06-22 stsp 	m->obj_type = obj_type;
 125 e6bcace5 2021-06-22 stsp 	m->mtime = mtime;
 126 e6bcace5 2021-06-22 stsp 	*new = m;
 127 e6bcace5 2021-06-22 stsp 	return NULL;
 128 e6bcace5 2021-06-22 stsp }
 129 e6bcace5 2021-06-22 stsp 
 130 e6bcace5 2021-06-22 stsp static void
 131 e6bcace5 2021-06-22 stsp clear_meta(struct got_pack_meta *meta)
 132 e6bcace5 2021-06-22 stsp {
 133 e6bcace5 2021-06-22 stsp 	if (meta == NULL)
 134 e6bcace5 2021-06-22 stsp 		return;
 135 e6bcace5 2021-06-22 stsp 	free(meta->path);
 136 e6bcace5 2021-06-22 stsp 	meta->path = NULL;
 137 5060d5a1 2022-01-10 stsp 	free(meta->delta_buf);
 138 5060d5a1 2022-01-10 stsp 	meta->delta_buf = NULL;
 139 67fd6849 2022-02-13 stsp 	free(meta->base_obj_id);
 140 67fd6849 2022-02-13 stsp 	meta->base_obj_id = NULL;
 141 e6bcace5 2021-06-22 stsp }
 142 e6bcace5 2021-06-22 stsp 
 143 e6bcace5 2021-06-22 stsp static void
 144 e6bcace5 2021-06-22 stsp free_nmeta(struct got_pack_meta **meta, int nmeta)
 145 e6bcace5 2021-06-22 stsp {
 146 e6bcace5 2021-06-22 stsp 	int i;
 147 e6bcace5 2021-06-22 stsp 
 148 e6bcace5 2021-06-22 stsp 	for (i = 0; i < nmeta; i++)
 149 e6bcace5 2021-06-22 stsp 		clear_meta(meta[i]);
 150 e6bcace5 2021-06-22 stsp 	free(meta);
 151 e6bcace5 2021-06-22 stsp }
 152 e6bcace5 2021-06-22 stsp 
 153 e6bcace5 2021-06-22 stsp static int
 154 e6bcace5 2021-06-22 stsp delta_order_cmp(const void *pa, const void *pb)
 155 e6bcace5 2021-06-22 stsp {
 156 e6bcace5 2021-06-22 stsp 	struct got_pack_meta *a, *b;
 157 e6bcace5 2021-06-22 stsp 	int cmp;
 158 e6bcace5 2021-06-22 stsp 
 159 e6bcace5 2021-06-22 stsp 	a = *(struct got_pack_meta **)pa;
 160 e6bcace5 2021-06-22 stsp 	b = *(struct got_pack_meta **)pb;
 161 e6bcace5 2021-06-22 stsp 
 162 e6bcace5 2021-06-22 stsp 	if (a->obj_type != b->obj_type)
 163 e6bcace5 2021-06-22 stsp 		return a->obj_type - b->obj_type;
 164 e6bcace5 2021-06-22 stsp 	cmp = strcmp(a->path, b->path);
 165 e6bcace5 2021-06-22 stsp 	if (cmp != 0)
 166 e6bcace5 2021-06-22 stsp 		return cmp;
 167 611e8e31 2022-05-01 stsp 	if (a->mtime < b->mtime)
 168 611e8e31 2022-05-01 stsp 		return -1;
 169 611e8e31 2022-05-01 stsp 	if (a->mtime > b->mtime)
 170 611e8e31 2022-05-01 stsp 		return 1;
 171 e6bcace5 2021-06-22 stsp 	return got_object_id_cmp(&a->id, &b->id);
 172 e6bcace5 2021-06-22 stsp }
 173 e6bcace5 2021-06-22 stsp 
 174 5060d5a1 2022-01-10 stsp static off_t
 175 e6bcace5 2021-06-22 stsp delta_size(struct got_delta_instruction *deltas, int ndeltas)
 176 e6bcace5 2021-06-22 stsp {
 177 5060d5a1 2022-01-10 stsp 	int i;
 178 5060d5a1 2022-01-10 stsp 	off_t size = 32;
 179 e6bcace5 2021-06-22 stsp 	for (i = 0; i < ndeltas; i++) {
 180 e6bcace5 2021-06-22 stsp 		if (deltas[i].copy)
 181 e6bcace5 2021-06-22 stsp 			size += GOT_DELTA_SIZE_SHIFT;
 182 e6bcace5 2021-06-22 stsp 		else
 183 e6bcace5 2021-06-22 stsp 			size += deltas[i].len + 1;
 184 e6bcace5 2021-06-22 stsp 	}
 185 e6bcace5 2021-06-22 stsp 	return size;
 186 5060d5a1 2022-01-10 stsp }
 187 5060d5a1 2022-01-10 stsp 
 188 5060d5a1 2022-01-10 stsp static const struct got_error *
 189 5060d5a1 2022-01-10 stsp append(unsigned char **p, size_t *len, off_t *sz, void *seg, int nseg)
 190 5060d5a1 2022-01-10 stsp {
 191 5060d5a1 2022-01-10 stsp 	char *n;
 192 5060d5a1 2022-01-10 stsp 
 193 5060d5a1 2022-01-10 stsp 	if (*len + nseg >= *sz) {
 194 5060d5a1 2022-01-10 stsp 		while (*len + nseg >= *sz)
 195 5060d5a1 2022-01-10 stsp 			*sz += *sz / 2;
 196 5060d5a1 2022-01-10 stsp 		n = realloc(*p, *sz);
 197 5060d5a1 2022-01-10 stsp 		if (n == NULL)
 198 5060d5a1 2022-01-10 stsp 			return got_error_from_errno("realloc");
 199 5060d5a1 2022-01-10 stsp 		*p = n;
 200 5060d5a1 2022-01-10 stsp 	}
 201 5060d5a1 2022-01-10 stsp 	memcpy(*p + *len, seg, nseg);
 202 5060d5a1 2022-01-10 stsp 	*len += nseg;
 203 5060d5a1 2022-01-10 stsp 	return NULL;
 204 5060d5a1 2022-01-10 stsp }
 205 5060d5a1 2022-01-10 stsp 
 206 5060d5a1 2022-01-10 stsp static const struct got_error *
 207 5060d5a1 2022-01-10 stsp encode_delta_in_mem(struct got_pack_meta *m, struct got_raw_object *o,
 208 5060d5a1 2022-01-10 stsp     struct got_delta_instruction *deltas, int ndeltas,
 209 5060d5a1 2022-01-10 stsp     off_t delta_size, off_t base_size)
 210 5060d5a1 2022-01-10 stsp {
 211 5060d5a1 2022-01-10 stsp 	const struct got_error *err;
 212 5060d5a1 2022-01-10 stsp 	unsigned char buf[16], *bp;
 213 5060d5a1 2022-01-10 stsp 	int i, j;
 214 2d9e6abf 2022-05-04 stsp 	size_t len = 0, compressed_len;
 215 2d9e6abf 2022-05-04 stsp 	off_t bufsize = delta_size;
 216 5060d5a1 2022-01-10 stsp 	off_t n;
 217 5060d5a1 2022-01-10 stsp 	struct got_delta_instruction *d;
 218 2d9e6abf 2022-05-04 stsp 	uint8_t *delta_buf;
 219 5060d5a1 2022-01-10 stsp 
 220 2d9e6abf 2022-05-04 stsp 	delta_buf = malloc(bufsize);
 221 2d9e6abf 2022-05-04 stsp 	if (delta_buf == NULL)
 222 2d9e6abf 2022-05-04 stsp 		return got_error_from_errno("malloc");
 223 5060d5a1 2022-01-10 stsp 
 224 5060d5a1 2022-01-10 stsp 	/* base object size */
 225 5060d5a1 2022-01-10 stsp 	buf[0] = base_size & GOT_DELTA_SIZE_VAL_MASK;
 226 5060d5a1 2022-01-10 stsp 	n = base_size >> GOT_DELTA_SIZE_SHIFT;
 227 5060d5a1 2022-01-10 stsp 	for (i = 1; n > 0; i++) {
 228 5060d5a1 2022-01-10 stsp 		buf[i - 1] |= GOT_DELTA_SIZE_MORE;
 229 5060d5a1 2022-01-10 stsp 		buf[i] = n & GOT_DELTA_SIZE_VAL_MASK;
 230 5060d5a1 2022-01-10 stsp 		n >>= GOT_DELTA_SIZE_SHIFT;
 231 5060d5a1 2022-01-10 stsp 	}
 232 2d9e6abf 2022-05-04 stsp 	err = append(&delta_buf, &len, &bufsize, buf, i);
 233 5060d5a1 2022-01-10 stsp 	if (err)
 234 2d9e6abf 2022-05-04 stsp 		goto done;
 235 5060d5a1 2022-01-10 stsp 
 236 5060d5a1 2022-01-10 stsp 	/* target object size */
 237 5060d5a1 2022-01-10 stsp 	buf[0] = o->size & GOT_DELTA_SIZE_VAL_MASK;
 238 5060d5a1 2022-01-10 stsp 	n = o->size >> GOT_DELTA_SIZE_SHIFT;
 239 5060d5a1 2022-01-10 stsp 	for (i = 1; n > 0; i++) {
 240 5060d5a1 2022-01-10 stsp 		buf[i - 1] |= GOT_DELTA_SIZE_MORE;
 241 5060d5a1 2022-01-10 stsp 		buf[i] = n & GOT_DELTA_SIZE_VAL_MASK;
 242 5060d5a1 2022-01-10 stsp 		n >>= GOT_DELTA_SIZE_SHIFT;
 243 5060d5a1 2022-01-10 stsp 	}
 244 2d9e6abf 2022-05-04 stsp 	err = append(&delta_buf, &len, &bufsize, buf, i);
 245 5060d5a1 2022-01-10 stsp 	if (err)
 246 2d9e6abf 2022-05-04 stsp 		goto done;
 247 5060d5a1 2022-01-10 stsp 
 248 5060d5a1 2022-01-10 stsp 	for (j = 0; j < ndeltas; j++) {
 249 5060d5a1 2022-01-10 stsp 		d = &deltas[j];
 250 5060d5a1 2022-01-10 stsp 		if (d->copy) {
 251 5060d5a1 2022-01-10 stsp 			n = d->offset;
 252 5060d5a1 2022-01-10 stsp 			bp = &buf[1];
 253 5060d5a1 2022-01-10 stsp 			buf[0] = GOT_DELTA_BASE_COPY;
 254 5060d5a1 2022-01-10 stsp 			for (i = 0; i < 4; i++) {
 255 5060d5a1 2022-01-10 stsp 				/* DELTA_COPY_OFF1 ... DELTA_COPY_OFF4 */
 256 5060d5a1 2022-01-10 stsp 				buf[0] |= 1 << i;
 257 5060d5a1 2022-01-10 stsp 				*bp++ = n & 0xff;
 258 5060d5a1 2022-01-10 stsp 				n >>= 8;
 259 5060d5a1 2022-01-10 stsp 				if (n == 0)
 260 5060d5a1 2022-01-10 stsp 					break;
 261 5060d5a1 2022-01-10 stsp 			}
 262 5060d5a1 2022-01-10 stsp 
 263 5060d5a1 2022-01-10 stsp 			n = d->len;
 264 5060d5a1 2022-01-10 stsp 			if (n != GOT_DELTA_COPY_DEFAULT_LEN) {
 265 5060d5a1 2022-01-10 stsp 				/* DELTA_COPY_LEN1 ... DELTA_COPY_LEN3 */
 266 5060d5a1 2022-01-10 stsp 				for (i = 0; i < 3 && n > 0; i++) {
 267 5060d5a1 2022-01-10 stsp 					buf[0] |= 1 << (i + 4);
 268 5060d5a1 2022-01-10 stsp 					*bp++ = n & 0xff;
 269 5060d5a1 2022-01-10 stsp 					n >>= 8;
 270 5060d5a1 2022-01-10 stsp 				}
 271 5060d5a1 2022-01-10 stsp 			}
 272 2d9e6abf 2022-05-04 stsp 			err = append(&delta_buf, &len, &bufsize,
 273 5060d5a1 2022-01-10 stsp 			    buf, bp - buf);
 274 5060d5a1 2022-01-10 stsp 			if (err)
 275 2d9e6abf 2022-05-04 stsp 				goto done;
 276 5060d5a1 2022-01-10 stsp 		} else if (o->f == NULL) {
 277 5060d5a1 2022-01-10 stsp 			n = 0;
 278 5060d5a1 2022-01-10 stsp 			while (n != d->len) {
 279 5060d5a1 2022-01-10 stsp 				buf[0] = (d->len - n < 127) ? d->len - n : 127;
 280 2d9e6abf 2022-05-04 stsp 				err = append(&delta_buf, &len, &bufsize,
 281 5060d5a1 2022-01-10 stsp 				    buf, 1);
 282 5060d5a1 2022-01-10 stsp 				if (err)
 283 2d9e6abf 2022-05-04 stsp 					goto done;
 284 2d9e6abf 2022-05-04 stsp 				err = append(&delta_buf, &len, &bufsize,
 285 5060d5a1 2022-01-10 stsp 				    o->data + o->hdrlen + d->offset + n,
 286 5060d5a1 2022-01-10 stsp 				    buf[0]);
 287 5060d5a1 2022-01-10 stsp 				if (err)
 288 2d9e6abf 2022-05-04 stsp 					goto done;
 289 5060d5a1 2022-01-10 stsp 				n += buf[0];
 290 5060d5a1 2022-01-10 stsp 			}
 291 5060d5a1 2022-01-10 stsp 		} else {
 292 5060d5a1 2022-01-10 stsp 			char content[128];
 293 5060d5a1 2022-01-10 stsp 			size_t r;
 294 2d9e6abf 2022-05-04 stsp 			if (fseeko(o->f, o->hdrlen + d->offset, SEEK_SET) == -1) {
 295 2d9e6abf 2022-05-04 stsp 				err = got_error_from_errno("fseeko");
 296 2d9e6abf 2022-05-04 stsp 				goto done;
 297 2d9e6abf 2022-05-04 stsp 			}
 298 5060d5a1 2022-01-10 stsp 			n = 0;
 299 5060d5a1 2022-01-10 stsp 			while (n != d->len) {
 300 5060d5a1 2022-01-10 stsp 				buf[0] = (d->len - n < 127) ? d->len - n : 127;
 301 2d9e6abf 2022-05-04 stsp 				err = append(&delta_buf, &len, &bufsize,
 302 5060d5a1 2022-01-10 stsp 				    buf, 1);
 303 5060d5a1 2022-01-10 stsp 				if (err)
 304 2d9e6abf 2022-05-04 stsp 					goto done;
 305 5060d5a1 2022-01-10 stsp 				r = fread(content, 1, buf[0], o->f);
 306 2d9e6abf 2022-05-04 stsp 				if (r != buf[0]) {
 307 2d9e6abf 2022-05-04 stsp 					err = got_ferror(o->f, GOT_ERR_IO);
 308 2d9e6abf 2022-05-04 stsp 					goto done;
 309 2d9e6abf 2022-05-04 stsp 				}
 310 2d9e6abf 2022-05-04 stsp 				err = append(&delta_buf, &len, &bufsize,
 311 5060d5a1 2022-01-10 stsp 				    content, buf[0]);
 312 5060d5a1 2022-01-10 stsp 				if (err)
 313 2d9e6abf 2022-05-04 stsp 					goto done;
 314 5060d5a1 2022-01-10 stsp 				n += buf[0];
 315 5060d5a1 2022-01-10 stsp 			}
 316 5060d5a1 2022-01-10 stsp 		}
 317 5060d5a1 2022-01-10 stsp 	}
 318 5060d5a1 2022-01-10 stsp 
 319 2d9e6abf 2022-05-04 stsp 	err = got_deflate_to_mem_mmap(&m->delta_buf, &compressed_len,
 320 2d9e6abf 2022-05-04 stsp 	    NULL, NULL, delta_buf, 0, len);
 321 2d9e6abf 2022-05-04 stsp 	if (err)
 322 2d9e6abf 2022-05-04 stsp 		goto done;
 323 2d9e6abf 2022-05-04 stsp 
 324 5060d5a1 2022-01-10 stsp 	m->delta_len = len;
 325 2d9e6abf 2022-05-04 stsp 	m->delta_compressed_len = compressed_len;
 326 2d9e6abf 2022-05-04 stsp done:
 327 2d9e6abf 2022-05-04 stsp 	free(delta_buf);
 328 2d9e6abf 2022-05-04 stsp 	return err;
 329 e6bcace5 2021-06-22 stsp }
 330 e6bcace5 2021-06-22 stsp 
 331 74881701 2021-10-15 stsp static const struct got_error *
 332 74881701 2021-10-15 stsp encode_delta(struct got_pack_meta *m, struct got_raw_object *o,
 333 74881701 2021-10-15 stsp     struct got_delta_instruction *deltas, int ndeltas,
 334 a319ca8c 2021-10-15 stsp     off_t base_size, FILE *f)
 335 a319ca8c 2021-10-15 stsp {
 336 2d9e6abf 2022-05-04 stsp 	const struct got_error *err;
 337 a319ca8c 2021-10-15 stsp 	unsigned char buf[16], *bp;
 338 a319ca8c 2021-10-15 stsp 	int i, j;
 339 a319ca8c 2021-10-15 stsp 	off_t n;
 340 2d9e6abf 2022-05-04 stsp 	struct got_deflate_buf zb;
 341 a319ca8c 2021-10-15 stsp 	struct got_delta_instruction *d;
 342 2d9e6abf 2022-05-04 stsp 	off_t delta_len = 0, compressed_len = 0;
 343 a319ca8c 2021-10-15 stsp 
 344 2d9e6abf 2022-05-04 stsp 	err = got_deflate_init(&zb, NULL, GOT_DEFLATE_BUFSIZE);
 345 2d9e6abf 2022-05-04 stsp 	if (err)
 346 2d9e6abf 2022-05-04 stsp 		return err;
 347 2d9e6abf 2022-05-04 stsp 
 348 a319ca8c 2021-10-15 stsp 	/* base object size */
 349 a319ca8c 2021-10-15 stsp 	buf[0] = base_size & GOT_DELTA_SIZE_VAL_MASK;
 350 a319ca8c 2021-10-15 stsp 	n = base_size >> GOT_DELTA_SIZE_SHIFT;
 351 a319ca8c 2021-10-15 stsp 	for (i = 1; n > 0; i++) {
 352 a319ca8c 2021-10-15 stsp 		buf[i - 1] |= GOT_DELTA_SIZE_MORE;
 353 a319ca8c 2021-10-15 stsp 		buf[i] = n & GOT_DELTA_SIZE_VAL_MASK;
 354 a319ca8c 2021-10-15 stsp 		n >>= GOT_DELTA_SIZE_SHIFT;
 355 a319ca8c 2021-10-15 stsp 	}
 356 a319ca8c 2021-10-15 stsp 
 357 2d9e6abf 2022-05-04 stsp 	err = got_deflate_append_to_file_mmap(&zb, &compressed_len,
 358 2d9e6abf 2022-05-04 stsp 	    buf, 0, i, f, NULL);
 359 2d9e6abf 2022-05-04 stsp 	if (err)
 360 2d9e6abf 2022-05-04 stsp 		goto done;
 361 2d9e6abf 2022-05-04 stsp 	delta_len += i;
 362 2d9e6abf 2022-05-04 stsp 
 363 a319ca8c 2021-10-15 stsp 	/* target object size */
 364 a319ca8c 2021-10-15 stsp 	buf[0] = o->size & GOT_DELTA_SIZE_VAL_MASK;
 365 a319ca8c 2021-10-15 stsp 	n = o->size >> GOT_DELTA_SIZE_SHIFT;
 366 a319ca8c 2021-10-15 stsp 	for (i = 1; n > 0; i++) {
 367 a319ca8c 2021-10-15 stsp 		buf[i - 1] |= GOT_DELTA_SIZE_MORE;
 368 a319ca8c 2021-10-15 stsp 		buf[i] = n & GOT_DELTA_SIZE_VAL_MASK;
 369 a319ca8c 2021-10-15 stsp 		n >>= GOT_DELTA_SIZE_SHIFT;
 370 a319ca8c 2021-10-15 stsp 	}
 371 a319ca8c 2021-10-15 stsp 
 372 2d9e6abf 2022-05-04 stsp 	err = got_deflate_append_to_file_mmap(&zb, &compressed_len,
 373 2d9e6abf 2022-05-04 stsp 	    buf, 0, i, f, NULL);
 374 2d9e6abf 2022-05-04 stsp 	if (err)
 375 2d9e6abf 2022-05-04 stsp 		goto done;
 376 2d9e6abf 2022-05-04 stsp 	delta_len += i;
 377 2d9e6abf 2022-05-04 stsp 
 378 a319ca8c 2021-10-15 stsp 	for (j = 0; j < ndeltas; j++) {
 379 a319ca8c 2021-10-15 stsp 		d = &deltas[j];
 380 a319ca8c 2021-10-15 stsp 		if (d->copy) {
 381 a319ca8c 2021-10-15 stsp 			n = d->offset;
 382 a319ca8c 2021-10-15 stsp 			bp = &buf[1];
 383 a319ca8c 2021-10-15 stsp 			buf[0] = GOT_DELTA_BASE_COPY;
 384 a319ca8c 2021-10-15 stsp 			for (i = 0; i < 4; i++) {
 385 a319ca8c 2021-10-15 stsp 				/* DELTA_COPY_OFF1 ... DELTA_COPY_OFF4 */
 386 a319ca8c 2021-10-15 stsp 				buf[0] |= 1 << i;
 387 a319ca8c 2021-10-15 stsp 				*bp++ = n & 0xff;
 388 a319ca8c 2021-10-15 stsp 				n >>= 8;
 389 a319ca8c 2021-10-15 stsp 				if (n == 0)
 390 a319ca8c 2021-10-15 stsp 					break;
 391 a319ca8c 2021-10-15 stsp 			}
 392 a319ca8c 2021-10-15 stsp 			n = d->len;
 393 a319ca8c 2021-10-15 stsp 			if (n != GOT_DELTA_COPY_DEFAULT_LEN) {
 394 a319ca8c 2021-10-15 stsp 				/* DELTA_COPY_LEN1 ... DELTA_COPY_LEN3 */
 395 a319ca8c 2021-10-15 stsp 				for (i = 0; i < 3 && n > 0; i++) {
 396 a319ca8c 2021-10-15 stsp 					buf[0] |= 1 << (i + 4);
 397 a319ca8c 2021-10-15 stsp 					*bp++ = n & 0xff;
 398 a319ca8c 2021-10-15 stsp 					n >>= 8;
 399 a319ca8c 2021-10-15 stsp 				}
 400 a319ca8c 2021-10-15 stsp 			}
 401 2d9e6abf 2022-05-04 stsp 			err = got_deflate_append_to_file_mmap(&zb,
 402 2d9e6abf 2022-05-04 stsp 			    &compressed_len, buf, 0, bp - buf, f, NULL);
 403 2d9e6abf 2022-05-04 stsp 			if (err)
 404 2d9e6abf 2022-05-04 stsp 				goto done;
 405 2d9e6abf 2022-05-04 stsp 			delta_len += (bp - buf);
 406 64a8571e 2022-01-07 stsp 		} else if (o->f == NULL) {
 407 64a8571e 2022-01-07 stsp 			n = 0;
 408 64a8571e 2022-01-07 stsp 			while (n != d->len) {
 409 64a8571e 2022-01-07 stsp 				buf[0] = (d->len - n < 127) ? d->len - n : 127;
 410 2d9e6abf 2022-05-04 stsp 				err = got_deflate_append_to_file_mmap(&zb,
 411 2d9e6abf 2022-05-04 stsp 				    &compressed_len, buf, 0, 1, f, NULL);
 412 2d9e6abf 2022-05-04 stsp 				if (err)
 413 2d9e6abf 2022-05-04 stsp 					goto done;
 414 2d9e6abf 2022-05-04 stsp 				delta_len++;
 415 2d9e6abf 2022-05-04 stsp 				err = got_deflate_append_to_file_mmap(&zb,
 416 2d9e6abf 2022-05-04 stsp 				    &compressed_len,
 417 2d9e6abf 2022-05-04 stsp 				    o->data + o->hdrlen + d->offset + n, 0,
 418 2d9e6abf 2022-05-04 stsp 				    buf[0], f, NULL);
 419 2d9e6abf 2022-05-04 stsp 				if (err)
 420 2d9e6abf 2022-05-04 stsp 					goto done;
 421 2d9e6abf 2022-05-04 stsp 				delta_len += buf[0];
 422 64a8571e 2022-01-07 stsp 				n += buf[0];
 423 64a8571e 2022-01-07 stsp 			}
 424 a319ca8c 2021-10-15 stsp 		} else {
 425 a319ca8c 2021-10-15 stsp 			char content[128];
 426 a319ca8c 2021-10-15 stsp 			size_t r;
 427 2d9e6abf 2022-05-04 stsp 			if (fseeko(o->f, o->hdrlen + d->offset, SEEK_SET) == -1) {
 428 2d9e6abf 2022-05-04 stsp 				err = got_error_from_errno("fseeko");
 429 2d9e6abf 2022-05-04 stsp 				goto done;
 430 2d9e6abf 2022-05-04 stsp 			}
 431 a319ca8c 2021-10-15 stsp 			n = 0;
 432 a319ca8c 2021-10-15 stsp 			while (n != d->len) {
 433 a319ca8c 2021-10-15 stsp 				buf[0] = (d->len - n < 127) ? d->len - n : 127;
 434 2d9e6abf 2022-05-04 stsp 				err = got_deflate_append_to_file_mmap(&zb,
 435 2d9e6abf 2022-05-04 stsp 				    &compressed_len, buf, 0, 1, f, NULL);
 436 2d9e6abf 2022-05-04 stsp 				if (err)
 437 2d9e6abf 2022-05-04 stsp 					goto done;
 438 2d9e6abf 2022-05-04 stsp 				delta_len++;
 439 a319ca8c 2021-10-15 stsp 				r = fread(content, 1, buf[0], o->f);
 440 2d9e6abf 2022-05-04 stsp 				if (r != buf[0]) {
 441 2d9e6abf 2022-05-04 stsp 					err = got_ferror(o->f, GOT_ERR_IO);
 442 2d9e6abf 2022-05-04 stsp 					goto done;
 443 2d9e6abf 2022-05-04 stsp 				}
 444 2d9e6abf 2022-05-04 stsp 				err = got_deflate_append_to_file_mmap(&zb,
 445 2d9e6abf 2022-05-04 stsp 				    &compressed_len, content, 0, buf[0], f,
 446 2d9e6abf 2022-05-04 stsp 				    NULL);
 447 2d9e6abf 2022-05-04 stsp 				if (err)
 448 2d9e6abf 2022-05-04 stsp 					goto done;
 449 2d9e6abf 2022-05-04 stsp 				delta_len += buf[0];
 450 a319ca8c 2021-10-15 stsp 				n += buf[0];
 451 a319ca8c 2021-10-15 stsp 			}
 452 a319ca8c 2021-10-15 stsp 		}
 453 a319ca8c 2021-10-15 stsp 	}
 454 e6bcace5 2021-06-22 stsp 
 455 2d9e6abf 2022-05-04 stsp 	err = got_deflate_flush(&zb, f, NULL, &compressed_len);
 456 2d9e6abf 2022-05-04 stsp 	if (err)
 457 2d9e6abf 2022-05-04 stsp 		goto done;
 458 2d9e6abf 2022-05-04 stsp 
 459 2d9e6abf 2022-05-04 stsp 	/* sanity check */
 460 2d9e6abf 2022-05-04 stsp 	if (compressed_len != ftello(f) - m->delta_offset) {
 461 2d9e6abf 2022-05-04 stsp 		err = got_error(GOT_ERR_COMPRESSION);
 462 2d9e6abf 2022-05-04 stsp 		goto done;
 463 2d9e6abf 2022-05-04 stsp 	}
 464 2d9e6abf 2022-05-04 stsp 
 465 2d9e6abf 2022-05-04 stsp 	m->delta_len = delta_len;
 466 2d9e6abf 2022-05-04 stsp 	m->delta_compressed_len = compressed_len;
 467 2d9e6abf 2022-05-04 stsp done:
 468 2d9e6abf 2022-05-04 stsp 	got_deflate_end(&zb);
 469 2d9e6abf 2022-05-04 stsp 	return err;
 470 a319ca8c 2021-10-15 stsp }
 471 211cfef0 2022-01-05 stsp 
 472 211cfef0 2022-01-05 stsp static const struct got_error *
 473 211cfef0 2022-01-05 stsp report_progress(got_pack_progress_cb progress_cb, void *progress_arg,
 474 b8af7c06 2022-03-15 stsp     struct got_ratelimit *rl, int ncolored, int nfound, int ntrees,
 475 b8af7c06 2022-03-15 stsp     off_t packfile_size, int ncommits, int nobj_total, int obj_deltify,
 476 b8af7c06 2022-03-15 stsp     int nobj_written)
 477 211cfef0 2022-01-05 stsp {
 478 211cfef0 2022-01-05 stsp 	const struct got_error *err;
 479 211cfef0 2022-01-05 stsp 	int elapsed;
 480 211cfef0 2022-01-05 stsp 
 481 211cfef0 2022-01-05 stsp 	if (progress_cb == NULL)
 482 211cfef0 2022-01-05 stsp 		return NULL;
 483 211cfef0 2022-01-05 stsp 
 484 211cfef0 2022-01-05 stsp 	err = got_ratelimit_check(&elapsed, rl);
 485 211cfef0 2022-01-05 stsp 	if (err || !elapsed)
 486 211cfef0 2022-01-05 stsp 		return err;
 487 a319ca8c 2021-10-15 stsp 
 488 b8af7c06 2022-03-15 stsp 	return progress_cb(progress_arg, ncolored, nfound, ntrees,
 489 b8af7c06 2022-03-15 stsp 	    packfile_size, ncommits, nobj_total, obj_deltify, nobj_written);
 490 211cfef0 2022-01-05 stsp }
 491 a319ca8c 2021-10-15 stsp 
 492 e6bcace5 2021-06-22 stsp static const struct got_error *
 493 67fd6849 2022-02-13 stsp add_meta(struct got_pack_meta *m, struct got_pack_metavec *v)
 494 67fd6849 2022-02-13 stsp {
 495 67fd6849 2022-02-13 stsp 	if (v->nmeta == v->metasz){
 496 67fd6849 2022-02-13 stsp 		size_t newsize = 2 * v->metasz;
 497 67fd6849 2022-02-13 stsp 		struct got_pack_meta **new;
 498 67fd6849 2022-02-13 stsp 		new = reallocarray(v->meta, newsize, sizeof(*new));
 499 67fd6849 2022-02-13 stsp 		if (new == NULL)
 500 67fd6849 2022-02-13 stsp 			return got_error_from_errno("reallocarray");
 501 67fd6849 2022-02-13 stsp 		v->meta = new;
 502 67fd6849 2022-02-13 stsp 		v->metasz = newsize; 
 503 67fd6849 2022-02-13 stsp 	}
 504 67fd6849 2022-02-13 stsp 
 505 67fd6849 2022-02-13 stsp 	v->meta[v->nmeta++] = m;
 506 67fd6849 2022-02-13 stsp 	return NULL;
 507 67fd6849 2022-02-13 stsp }
 508 67fd6849 2022-02-13 stsp 
 509 67fd6849 2022-02-13 stsp static const struct got_error *
 510 67fd6849 2022-02-13 stsp reuse_delta(int idx, struct got_pack_meta *m, struct got_pack_metavec *v,
 511 67fd6849 2022-02-13 stsp     struct got_object_idset *idset, struct got_pack *pack,
 512 67fd6849 2022-02-13 stsp     struct got_packidx *packidx, int delta_cache_fd,
 513 67fd6849 2022-02-13 stsp     struct got_repository *repo)
 514 67fd6849 2022-02-13 stsp {
 515 67fd6849 2022-02-13 stsp 	const struct got_error *err = NULL;
 516 67fd6849 2022-02-13 stsp 	struct got_pack_meta *base = NULL;
 517 67fd6849 2022-02-13 stsp 	struct got_object_id *base_obj_id = NULL;
 518 2d9e6abf 2022-05-04 stsp 	off_t delta_len = 0, delta_compressed_len = 0;
 519 2d9e6abf 2022-05-04 stsp 	off_t delta_offset = 0, delta_cache_offset = 0;
 520 67fd6849 2022-02-13 stsp 	uint64_t base_size, result_size;
 521 67fd6849 2022-02-13 stsp 
 522 67fd6849 2022-02-13 stsp 	if (m->have_reused_delta)
 523 67fd6849 2022-02-13 stsp 		return NULL;
 524 67fd6849 2022-02-13 stsp 
 525 67fd6849 2022-02-13 stsp 	err = got_object_read_raw_delta(&base_size, &result_size, &delta_len,
 526 2d9e6abf 2022-05-04 stsp 	    &delta_compressed_len, &delta_offset, &delta_cache_offset,
 527 2d9e6abf 2022-05-04 stsp 	    &base_obj_id, delta_cache_fd, packidx, idx, &m->id, repo);
 528 67fd6849 2022-02-13 stsp 	if (err)
 529 67fd6849 2022-02-13 stsp 		return err;
 530 67fd6849 2022-02-13 stsp 
 531 67fd6849 2022-02-13 stsp 	if (delta_offset + delta_len < delta_offset)
 532 67fd6849 2022-02-13 stsp 		return got_error(GOT_ERR_BAD_PACKFILE);
 533 67fd6849 2022-02-13 stsp 
 534 67fd6849 2022-02-13 stsp 	base = got_object_idset_get(idset, base_obj_id);
 535 67fd6849 2022-02-13 stsp 	if (base == NULL)
 536 67fd6849 2022-02-13 stsp 		goto done;
 537 67fd6849 2022-02-13 stsp 
 538 67fd6849 2022-02-13 stsp 	m->delta_len = delta_len;
 539 2d9e6abf 2022-05-04 stsp 	m->delta_compressed_len = delta_compressed_len;
 540 67fd6849 2022-02-13 stsp 	m->delta_offset = delta_cache_offset;
 541 67fd6849 2022-02-13 stsp 	m->prev = base;
 542 67fd6849 2022-02-13 stsp 	m->size = result_size;
 543 67fd6849 2022-02-13 stsp 	m->have_reused_delta = 1;
 544 67fd6849 2022-02-13 stsp 	m->reused_delta_offset = delta_offset;
 545 67fd6849 2022-02-13 stsp 	m->base_obj_id = base_obj_id;
 546 67fd6849 2022-02-13 stsp 	base_obj_id = NULL;
 547 67fd6849 2022-02-13 stsp 	err = add_meta(m, v);
 548 67fd6849 2022-02-13 stsp done:
 549 67fd6849 2022-02-13 stsp 	free(base_obj_id);
 550 67fd6849 2022-02-13 stsp 	return err;
 551 67fd6849 2022-02-13 stsp }
 552 67fd6849 2022-02-13 stsp 
 553 67fd6849 2022-02-13 stsp static const struct got_error *
 554 67fd6849 2022-02-13 stsp find_pack_for_reuse(struct got_packidx **best_packidx,
 555 67fd6849 2022-02-13 stsp     struct got_repository *repo)
 556 67fd6849 2022-02-13 stsp {
 557 9b576444 2022-03-14 stsp 	const struct got_error *err = NULL;
 558 67fd6849 2022-02-13 stsp 	struct got_pathlist_entry *pe;
 559 67fd6849 2022-02-13 stsp 	const char *best_packidx_path = NULL;
 560 67fd6849 2022-02-13 stsp 	int nobj_max = 0;
 561 67fd6849 2022-02-13 stsp 
 562 67fd6849 2022-02-13 stsp 	*best_packidx = NULL;
 563 67fd6849 2022-02-13 stsp 
 564 9b576444 2022-03-14 stsp 	TAILQ_FOREACH(pe, &repo->packidx_paths, entry) {
 565 67fd6849 2022-02-13 stsp 		const char *path_packidx = pe->path;
 566 67fd6849 2022-02-13 stsp 		struct got_packidx *packidx;
 567 67fd6849 2022-02-13 stsp 		int nobj;
 568 67fd6849 2022-02-13 stsp 
 569 67fd6849 2022-02-13 stsp 		err = got_repo_get_packidx(&packidx, path_packidx, repo);
 570 67fd6849 2022-02-13 stsp 		if (err)
 571 67fd6849 2022-02-13 stsp 			break;
 572 67fd6849 2022-02-13 stsp 
 573 67fd6849 2022-02-13 stsp 		nobj = be32toh(packidx->hdr.fanout_table[0xff]);
 574 67fd6849 2022-02-13 stsp 		if (nobj > nobj_max) {
 575 67fd6849 2022-02-13 stsp 			best_packidx_path = path_packidx;
 576 67fd6849 2022-02-13 stsp 			nobj_max = nobj;
 577 67fd6849 2022-02-13 stsp 		}
 578 67fd6849 2022-02-13 stsp 	}
 579 67fd6849 2022-02-13 stsp 
 580 67fd6849 2022-02-13 stsp 	if (best_packidx_path) {
 581 67fd6849 2022-02-13 stsp 		err = got_repo_get_packidx(best_packidx, best_packidx_path,
 582 67fd6849 2022-02-13 stsp 		    repo);
 583 67fd6849 2022-02-13 stsp 	}
 584 67fd6849 2022-02-13 stsp 
 585 67fd6849 2022-02-13 stsp 	return err;
 586 67fd6849 2022-02-13 stsp }
 587 67fd6849 2022-02-13 stsp 
 588 67fd6849 2022-02-13 stsp struct search_deltas_arg {
 589 67fd6849 2022-02-13 stsp 	struct got_packidx *packidx;
 590 67fd6849 2022-02-13 stsp 	struct got_pack *pack;
 591 67fd6849 2022-02-13 stsp 	struct got_object_idset *idset;
 592 67fd6849 2022-02-13 stsp 	struct got_pack_metavec *v;
 593 67fd6849 2022-02-13 stsp 	int delta_cache_fd;
 594 67fd6849 2022-02-13 stsp 	struct got_repository *repo;
 595 67fd6849 2022-02-13 stsp 	got_pack_progress_cb progress_cb;
 596 67fd6849 2022-02-13 stsp 	void *progress_arg;
 597 67fd6849 2022-02-13 stsp 	struct got_ratelimit *rl;
 598 67fd6849 2022-02-13 stsp 	got_cancel_cb cancel_cb;
 599 67fd6849 2022-02-13 stsp 	void *cancel_arg;
 600 b8af7c06 2022-03-15 stsp 	int ncolored;
 601 b8af7c06 2022-03-15 stsp 	int nfound;
 602 b8af7c06 2022-03-15 stsp 	int ntrees;
 603 67fd6849 2022-02-13 stsp 	int ncommits;
 604 67fd6849 2022-02-13 stsp };
 605 67fd6849 2022-02-13 stsp 
 606 67fd6849 2022-02-13 stsp static const struct got_error *
 607 67fd6849 2022-02-13 stsp search_delta_for_object(struct got_object_id *id, void *data, void *arg)
 608 67fd6849 2022-02-13 stsp {
 609 67fd6849 2022-02-13 stsp 	const struct got_error *err;
 610 67fd6849 2022-02-13 stsp 	struct got_pack_meta *m = data;
 611 67fd6849 2022-02-13 stsp 	struct search_deltas_arg *a = arg;
 612 67fd6849 2022-02-13 stsp 	int obj_idx;
 613 67fd6849 2022-02-13 stsp 	struct got_object *obj = NULL;
 614 67fd6849 2022-02-13 stsp 
 615 67fd6849 2022-02-13 stsp 	if (a->cancel_cb) {
 616 67fd6849 2022-02-13 stsp 		err = (*a->cancel_cb)(a->cancel_arg);
 617 67fd6849 2022-02-13 stsp 		if (err)
 618 67fd6849 2022-02-13 stsp 			return err;
 619 67fd6849 2022-02-13 stsp 	}
 620 67fd6849 2022-02-13 stsp 
 621 67fd6849 2022-02-13 stsp 	if (!got_repo_check_packidx_bloom_filter(a->repo,
 622 67fd6849 2022-02-13 stsp 	    a->packidx->path_packidx, id))
 623 67fd6849 2022-02-13 stsp 		return NULL;
 624 67fd6849 2022-02-13 stsp 
 625 67fd6849 2022-02-13 stsp 	obj_idx = got_packidx_get_object_idx(a->packidx, id);
 626 67fd6849 2022-02-13 stsp 	if (obj_idx == -1)
 627 67fd6849 2022-02-13 stsp 		return NULL;
 628 67fd6849 2022-02-13 stsp 
 629 67fd6849 2022-02-13 stsp 	/* TODO:
 630 67fd6849 2022-02-13 stsp 	 * Opening and closing an object just to check its flags
 631 67fd6849 2022-02-13 stsp 	 * is a bit expensive. We could have an imsg which requests
 632 67fd6849 2022-02-13 stsp 	 * plain type/size information for an object without doing
 633 67fd6849 2022-02-13 stsp 	 * work such as traversing the object's entire delta chain
 634 67fd6849 2022-02-13 stsp 	 * to find the base object type, and other such info which
 635 67fd6849 2022-02-13 stsp 	 * we don't really need here.
 636 67fd6849 2022-02-13 stsp 	 */
 637 67fd6849 2022-02-13 stsp 	err = got_object_open_from_packfile(&obj, &m->id, a->pack,
 638 67fd6849 2022-02-13 stsp 	    a->packidx, obj_idx, a->repo);
 639 67fd6849 2022-02-13 stsp 	if (err)
 640 67fd6849 2022-02-13 stsp 		return err;
 641 67fd6849 2022-02-13 stsp 
 642 67fd6849 2022-02-13 stsp 	if (obj->flags & GOT_OBJ_FLAG_DELTIFIED) {
 643 67fd6849 2022-02-13 stsp 		reuse_delta(obj_idx, m, a->v, a->idset, a->pack, a->packidx,
 644 67fd6849 2022-02-13 stsp 		    a->delta_cache_fd, a->repo);
 645 67fd6849 2022-02-13 stsp 		if (err)
 646 67fd6849 2022-02-13 stsp 			goto done;
 647 67fd6849 2022-02-13 stsp 		err = report_progress(a->progress_cb, a->progress_arg, a->rl,
 648 b8af7c06 2022-03-15 stsp 		    a->ncolored, a->nfound, a->ntrees, 0L, a->ncommits,
 649 b8af7c06 2022-03-15 stsp 		    got_object_idset_num_elements(a->idset), a->v->nmeta, 0);
 650 67fd6849 2022-02-13 stsp 	}
 651 67fd6849 2022-02-13 stsp done:
 652 67fd6849 2022-02-13 stsp 	got_object_close(obj);
 653 67fd6849 2022-02-13 stsp 	return err;
 654 67fd6849 2022-02-13 stsp }
 655 67fd6849 2022-02-13 stsp 
 656 67fd6849 2022-02-13 stsp static const struct got_error *
 657 67fd6849 2022-02-13 stsp search_deltas(struct got_pack_metavec *v, struct got_object_idset *idset,
 658 b8af7c06 2022-03-15 stsp     int delta_cache_fd, int ncolored, int nfound, int ntrees, int ncommits,
 659 b8af7c06 2022-03-15 stsp     struct got_repository *repo,
 660 67fd6849 2022-02-13 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
 661 67fd6849 2022-02-13 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
 662 67fd6849 2022-02-13 stsp {
 663 67fd6849 2022-02-13 stsp 	const struct got_error *err = NULL;
 664 67fd6849 2022-02-13 stsp 	char *path_packfile = NULL;
 665 67fd6849 2022-02-13 stsp 	struct got_packidx *packidx;
 666 67fd6849 2022-02-13 stsp 	struct got_pack *pack;
 667 67fd6849 2022-02-13 stsp 	struct search_deltas_arg sda;
 668 67fd6849 2022-02-13 stsp 
 669 67fd6849 2022-02-13 stsp 	err = find_pack_for_reuse(&packidx, repo);
 670 67fd6849 2022-02-13 stsp 	if (err)
 671 67fd6849 2022-02-13 stsp 		return err;
 672 67fd6849 2022-02-13 stsp 
 673 67fd6849 2022-02-13 stsp 	if (packidx == NULL)
 674 67fd6849 2022-02-13 stsp 		return NULL;
 675 67fd6849 2022-02-13 stsp 
 676 67fd6849 2022-02-13 stsp 	err = got_packidx_get_packfile_path(&path_packfile,
 677 67fd6849 2022-02-13 stsp 	    packidx->path_packidx);
 678 67fd6849 2022-02-13 stsp 	if (err)
 679 67fd6849 2022-02-13 stsp 		return err;
 680 67fd6849 2022-02-13 stsp 
 681 67fd6849 2022-02-13 stsp 	pack = got_repo_get_cached_pack(repo, path_packfile);
 682 67fd6849 2022-02-13 stsp 	if (pack == NULL) {
 683 67fd6849 2022-02-13 stsp 		err = got_repo_cache_pack(&pack, repo, path_packfile, packidx);
 684 67fd6849 2022-02-13 stsp 		if (err)
 685 67fd6849 2022-02-13 stsp 			goto done;
 686 67fd6849 2022-02-13 stsp 	}
 687 67fd6849 2022-02-13 stsp 
 688 67fd6849 2022-02-13 stsp 	sda.packidx = packidx;
 689 67fd6849 2022-02-13 stsp 	sda.pack = pack;
 690 67fd6849 2022-02-13 stsp 	sda.idset = idset;
 691 67fd6849 2022-02-13 stsp 	sda.v = v;
 692 67fd6849 2022-02-13 stsp 	sda.delta_cache_fd = delta_cache_fd;
 693 67fd6849 2022-02-13 stsp 	sda.repo = repo;
 694 67fd6849 2022-02-13 stsp 	sda.progress_cb = progress_cb;
 695 67fd6849 2022-02-13 stsp 	sda.progress_arg = progress_arg;
 696 67fd6849 2022-02-13 stsp 	sda.rl = rl;
 697 67fd6849 2022-02-13 stsp 	sda.cancel_cb = cancel_cb;
 698 67fd6849 2022-02-13 stsp 	sda.cancel_arg = cancel_arg;
 699 b8af7c06 2022-03-15 stsp 	sda.ncolored = ncolored;
 700 b8af7c06 2022-03-15 stsp 	sda.nfound = nfound;
 701 b8af7c06 2022-03-15 stsp 	sda.ntrees = ntrees;
 702 67fd6849 2022-02-13 stsp 	sda.ncommits = ncommits;
 703 67fd6849 2022-02-13 stsp 	err = got_object_idset_for_each(idset, search_delta_for_object, &sda);
 704 67fd6849 2022-02-13 stsp done:
 705 67fd6849 2022-02-13 stsp 	free(path_packfile);
 706 67fd6849 2022-02-13 stsp 	return err;
 707 67fd6849 2022-02-13 stsp }
 708 67fd6849 2022-02-13 stsp 
 709 67fd6849 2022-02-13 stsp static const struct got_error *
 710 b8af7c06 2022-03-15 stsp pick_deltas(struct got_pack_meta **meta, int nmeta, int ncolored,
 711 b8af7c06 2022-03-15 stsp     int nfound, int ntrees, int ncommits, int nreused, FILE *delta_cache,
 712 b8af7c06 2022-03-15 stsp     struct got_repository *repo,
 713 05118f5a 2021-06-22 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
 714 211cfef0 2022-01-05 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
 715 e6bcace5 2021-06-22 stsp {
 716 e6bcace5 2021-06-22 stsp 	const struct got_error *err = NULL;
 717 e6bcace5 2021-06-22 stsp 	struct got_pack_meta *m = NULL, *base = NULL;
 718 e6bcace5 2021-06-22 stsp 	struct got_raw_object *raw = NULL, *base_raw = NULL;
 719 74881701 2021-10-15 stsp 	struct got_delta_instruction *deltas = NULL, *best_deltas = NULL;
 720 5060d5a1 2022-01-10 stsp 	int i, j, ndeltas, best_ndeltas;
 721 5060d5a1 2022-01-10 stsp 	off_t size, best_size;
 722 4f4d853e 2021-10-24 stsp 	const int max_base_candidates = 3;
 723 402a5ec1 2022-01-10 stsp 	size_t delta_memsize = 0;
 724 402a5ec1 2022-01-10 stsp 	const size_t max_delta_memsize = 25 * GOT_DELTA_RESULT_SIZE_CACHED_MAX;
 725 cc7a354a 2021-10-15 stsp 	int outfd = -1;
 726 e6bcace5 2021-06-22 stsp 
 727 e6bcace5 2021-06-22 stsp 	qsort(meta, nmeta, sizeof(struct got_pack_meta *), delta_order_cmp);
 728 e6bcace5 2021-06-22 stsp 	for (i = 0; i < nmeta; i++) {
 729 e6bcace5 2021-06-22 stsp 		if (cancel_cb) {
 730 e6bcace5 2021-06-22 stsp 			err = (*cancel_cb)(cancel_arg);
 731 e6bcace5 2021-06-22 stsp 			if (err)
 732 e6bcace5 2021-06-22 stsp 				break;
 733 e6bcace5 2021-06-22 stsp 		}
 734 211cfef0 2022-01-05 stsp 		err = report_progress(progress_cb, progress_arg, rl,
 735 b8af7c06 2022-03-15 stsp 		    ncolored, nfound, ntrees, 0L, ncommits, nreused + nmeta,
 736 b8af7c06 2022-03-15 stsp 		    nreused + i, 0);
 737 211cfef0 2022-01-05 stsp 		if (err)
 738 211cfef0 2022-01-05 stsp 			goto done;
 739 e6bcace5 2021-06-22 stsp 		m = meta[i];
 740 e6bcace5 2021-06-22 stsp 
 741 e6bcace5 2021-06-22 stsp 		if (m->obj_type == GOT_OBJ_TYPE_COMMIT ||
 742 e6bcace5 2021-06-22 stsp 		    m->obj_type == GOT_OBJ_TYPE_TAG)
 743 e6bcace5 2021-06-22 stsp 			continue;
 744 e6bcace5 2021-06-22 stsp 
 745 94dac27c 2021-10-15 stsp 		err = got_object_raw_open(&raw, &outfd, repo, &m->id);
 746 e6bcace5 2021-06-22 stsp 		if (err)
 747 e6bcace5 2021-06-22 stsp 			goto done;
 748 600b755e 2021-10-14 stsp 		m->size = raw->size;
 749 e6bcace5 2021-06-22 stsp 
 750 64a8571e 2022-01-07 stsp 		if (raw->f == NULL) {
 751 64a8571e 2022-01-07 stsp 			err = got_deltify_init_mem(&m->dtab, raw->data,
 752 64a8571e 2022-01-07 stsp 			    raw->hdrlen, raw->size + raw->hdrlen);
 753 64a8571e 2022-01-07 stsp 		} else {
 754 64a8571e 2022-01-07 stsp 			err = got_deltify_init(&m->dtab, raw->f, raw->hdrlen,
 755 64a8571e 2022-01-07 stsp 			    raw->size + raw->hdrlen);
 756 64a8571e 2022-01-07 stsp 		}
 757 e6bcace5 2021-06-22 stsp 		if (err)
 758 e6bcace5 2021-06-22 stsp 			goto done;
 759 e6bcace5 2021-06-22 stsp 
 760 e6bcace5 2021-06-22 stsp 		if (i > max_base_candidates) {
 761 e6bcace5 2021-06-22 stsp 			struct got_pack_meta *n = NULL;
 762 e6bcace5 2021-06-22 stsp 			n = meta[i - (max_base_candidates + 1)];
 763 e6bcace5 2021-06-22 stsp 			got_deltify_free(n->dtab);
 764 e6bcace5 2021-06-22 stsp 			n->dtab = NULL;
 765 e6bcace5 2021-06-22 stsp 		}
 766 e6bcace5 2021-06-22 stsp 
 767 74881701 2021-10-15 stsp 		best_size = raw->size;
 768 74881701 2021-10-15 stsp 		best_ndeltas = 0;
 769 e6bcace5 2021-06-22 stsp 		for (j = MAX(0, i - max_base_candidates); j < i; j++) {
 770 e6bcace5 2021-06-22 stsp 			if (cancel_cb) {
 771 e6bcace5 2021-06-22 stsp 				err = (*cancel_cb)(cancel_arg);
 772 e6bcace5 2021-06-22 stsp 				if (err)
 773 e6bcace5 2021-06-22 stsp 					goto done;
 774 e6bcace5 2021-06-22 stsp 			}
 775 e6bcace5 2021-06-22 stsp 			base = meta[j];
 776 e6bcace5 2021-06-22 stsp 			/* long chains make unpacking slow, avoid such bases */
 777 22edbce7 2021-10-24 stsp 			if (base->nchain >= 128 ||
 778 e6bcace5 2021-06-22 stsp 			    base->obj_type != m->obj_type)
 779 e6bcace5 2021-06-22 stsp 				continue;
 780 e6bcace5 2021-06-22 stsp 
 781 d3c116bf 2021-10-15 stsp 			err = got_object_raw_open(&base_raw, &outfd, repo,
 782 94dac27c 2021-10-15 stsp 			    &base->id);
 783 e6bcace5 2021-06-22 stsp 			if (err)
 784 e6bcace5 2021-06-22 stsp 				goto done;
 785 67fd6849 2022-02-13 stsp 
 786 64a8571e 2022-01-07 stsp 			if (raw->f == NULL && base_raw->f == NULL) {
 787 64a8571e 2022-01-07 stsp 				err = got_deltify_mem_mem(&deltas, &ndeltas,
 788 64a8571e 2022-01-07 stsp 				    raw->data, raw->hdrlen,
 789 64a8571e 2022-01-07 stsp 				    raw->size + raw->hdrlen,
 790 64a8571e 2022-01-07 stsp 				    base->dtab, base_raw->data,
 791 64a8571e 2022-01-07 stsp 				    base_raw->hdrlen,
 792 64a8571e 2022-01-07 stsp 				    base_raw->size + base_raw->hdrlen);
 793 64a8571e 2022-01-07 stsp 			} else if (raw->f == NULL) {
 794 64a8571e 2022-01-07 stsp 				err = got_deltify_mem_file(&deltas, &ndeltas,
 795 64a8571e 2022-01-07 stsp 				    raw->data, raw->hdrlen,
 796 64a8571e 2022-01-07 stsp 				    raw->size + raw->hdrlen,
 797 64a8571e 2022-01-07 stsp 				    base->dtab, base_raw->f,
 798 64a8571e 2022-01-07 stsp 				    base_raw->hdrlen,
 799 64a8571e 2022-01-07 stsp 				    base_raw->size + base_raw->hdrlen);
 800 64a8571e 2022-01-07 stsp 			} else if (base_raw->f == NULL) {
 801 64a8571e 2022-01-07 stsp 				err = got_deltify_file_mem(&deltas, &ndeltas,
 802 64a8571e 2022-01-07 stsp 				    raw->f, raw->hdrlen,
 803 64a8571e 2022-01-07 stsp 				    raw->size + raw->hdrlen,
 804 64a8571e 2022-01-07 stsp 				    base->dtab, base_raw->data,
 805 64a8571e 2022-01-07 stsp 				    base_raw->hdrlen,
 806 64a8571e 2022-01-07 stsp 				    base_raw->size + base_raw->hdrlen);
 807 64a8571e 2022-01-07 stsp 			} else {
 808 64a8571e 2022-01-07 stsp 				err = got_deltify(&deltas, &ndeltas,
 809 64a8571e 2022-01-07 stsp 				    raw->f, raw->hdrlen,
 810 64a8571e 2022-01-07 stsp 				    raw->size + raw->hdrlen,
 811 64a8571e 2022-01-07 stsp 				    base->dtab, base_raw->f, base_raw->hdrlen,
 812 64a8571e 2022-01-07 stsp 				    base_raw->size + base_raw->hdrlen);
 813 64a8571e 2022-01-07 stsp 			}
 814 e6bcace5 2021-06-22 stsp 			got_object_raw_close(base_raw);
 815 e6bcace5 2021-06-22 stsp 			base_raw = NULL;
 816 e6bcace5 2021-06-22 stsp 			if (err)
 817 e6bcace5 2021-06-22 stsp 				goto done;
 818 e6bcace5 2021-06-22 stsp 
 819 e6bcace5 2021-06-22 stsp 			size = delta_size(deltas, ndeltas);
 820 74881701 2021-10-15 stsp 			if (size + 32 < best_size){
 821 e6bcace5 2021-06-22 stsp 				/*
 822 e6bcace5 2021-06-22 stsp 				 * if we already picked a best delta,
 823 e6bcace5 2021-06-22 stsp 				 * replace it.
 824 e6bcace5 2021-06-22 stsp 				 */
 825 74881701 2021-10-15 stsp 				best_size = size;
 826 74881701 2021-10-15 stsp 				free(best_deltas);
 827 74881701 2021-10-15 stsp 				best_deltas = deltas;
 828 74881701 2021-10-15 stsp 				best_ndeltas = ndeltas;
 829 74881701 2021-10-15 stsp 				deltas = NULL;
 830 e6bcace5 2021-06-22 stsp 				m->nchain = base->nchain + 1;
 831 e6bcace5 2021-06-22 stsp 				m->prev = base;
 832 e6bcace5 2021-06-22 stsp 				m->head = base->head;
 833 e6bcace5 2021-06-22 stsp 				if (m->head == NULL)
 834 e6bcace5 2021-06-22 stsp 					m->head = base;
 835 e6bcace5 2021-06-22 stsp 			} else {
 836 e6bcace5 2021-06-22 stsp 				free(deltas);
 837 e6bcace5 2021-06-22 stsp 				deltas = NULL;
 838 e6bcace5 2021-06-22 stsp 				ndeltas = 0;
 839 e6bcace5 2021-06-22 stsp 			}
 840 e6bcace5 2021-06-22 stsp 		}
 841 e6bcace5 2021-06-22 stsp 
 842 74881701 2021-10-15 stsp 		if (best_ndeltas > 0) {
 843 402a5ec1 2022-01-10 stsp 			if (best_size <= GOT_DELTA_RESULT_SIZE_CACHED_MAX &&
 844 402a5ec1 2022-01-10 stsp 			    delta_memsize + best_size <= max_delta_memsize) {
 845 402a5ec1 2022-01-10 stsp 				delta_memsize += best_size;
 846 5060d5a1 2022-01-10 stsp 				err = encode_delta_in_mem(m, raw, best_deltas,
 847 5060d5a1 2022-01-10 stsp 				    best_ndeltas, best_size, m->prev->size);
 848 5060d5a1 2022-01-10 stsp 			} else {
 849 5060d5a1 2022-01-10 stsp 				m->delta_offset = ftello(delta_cache);
 850 5060d5a1 2022-01-10 stsp 				err = encode_delta(m, raw, best_deltas,
 851 5060d5a1 2022-01-10 stsp 				    best_ndeltas, m->prev->size, delta_cache);
 852 5060d5a1 2022-01-10 stsp 			}
 853 74881701 2021-10-15 stsp 			free(best_deltas);
 854 74881701 2021-10-15 stsp 			best_deltas = NULL;
 855 74881701 2021-10-15 stsp 			best_ndeltas = 0;
 856 74881701 2021-10-15 stsp 			if (err)
 857 74881701 2021-10-15 stsp 				goto done;
 858 74881701 2021-10-15 stsp 		}
 859 74881701 2021-10-15 stsp 
 860 e6bcace5 2021-06-22 stsp 		got_object_raw_close(raw);
 861 e6bcace5 2021-06-22 stsp 		raw = NULL;
 862 e6bcace5 2021-06-22 stsp 	}
 863 e6bcace5 2021-06-22 stsp done:
 864 e6bcace5 2021-06-22 stsp 	for (i = MAX(0, nmeta - max_base_candidates); i < nmeta; i++) {
 865 e6bcace5 2021-06-22 stsp 		got_deltify_free(meta[i]->dtab);
 866 e6bcace5 2021-06-22 stsp 		meta[i]->dtab = NULL;
 867 e6bcace5 2021-06-22 stsp 	}
 868 e6bcace5 2021-06-22 stsp 	if (raw)
 869 e6bcace5 2021-06-22 stsp 		got_object_raw_close(raw);
 870 e6bcace5 2021-06-22 stsp 	if (base_raw)
 871 e6bcace5 2021-06-22 stsp 		got_object_raw_close(base_raw);
 872 cc7a354a 2021-10-15 stsp 	if (outfd != -1 && close(outfd) == -1 && err == NULL)
 873 cc7a354a 2021-10-15 stsp 		err = got_error_from_errno("close");
 874 74881701 2021-10-15 stsp 	free(deltas);
 875 74881701 2021-10-15 stsp 	free(best_deltas);
 876 e6bcace5 2021-06-22 stsp 	return err;
 877 e6bcace5 2021-06-22 stsp }
 878 e6bcace5 2021-06-22 stsp 
 879 e6bcace5 2021-06-22 stsp static const struct got_error *
 880 05118f5a 2021-06-22 stsp search_packidx(int *found, struct got_object_id *id,
 881 05118f5a 2021-06-22 stsp     struct got_repository *repo)
 882 05118f5a 2021-06-22 stsp {
 883 05118f5a 2021-06-22 stsp 	const struct got_error *err = NULL;
 884 05118f5a 2021-06-22 stsp 	struct got_packidx *packidx = NULL;
 885 05118f5a 2021-06-22 stsp 	int idx;
 886 05118f5a 2021-06-22 stsp 
 887 05118f5a 2021-06-22 stsp 	*found = 0;
 888 05118f5a 2021-06-22 stsp 
 889 05118f5a 2021-06-22 stsp 	err = got_repo_search_packidx(&packidx, &idx, repo, id);
 890 05118f5a 2021-06-22 stsp 	if (err == NULL)
 891 05118f5a 2021-06-22 stsp 		*found = 1; /* object is already packed */
 892 05118f5a 2021-06-22 stsp 	else if (err->code == GOT_ERR_NO_OBJ)
 893 05118f5a 2021-06-22 stsp 		err = NULL;
 894 05118f5a 2021-06-22 stsp 	return err;
 895 05118f5a 2021-06-22 stsp }
 896 05118f5a 2021-06-22 stsp 
 897 05118f5a 2021-06-22 stsp static const struct got_error *
 898 67fd6849 2022-02-13 stsp add_object(int want_meta, struct got_object_idset *idset,
 899 e6bcace5 2021-06-22 stsp     struct got_object_id *id, const char *path, int obj_type,
 900 6863cbf9 2022-03-21 stsp     time_t mtime, int loose_obj_only, struct got_repository *repo,
 901 6863cbf9 2022-03-21 stsp     int *ncolored, int *nfound, int *ntrees,
 902 6863cbf9 2022-03-21 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
 903 6863cbf9 2022-03-21 stsp     struct got_ratelimit *rl)
 904 e6bcace5 2021-06-22 stsp {
 905 e6bcace5 2021-06-22 stsp 	const struct got_error *err;
 906 67fd6849 2022-02-13 stsp 	struct got_pack_meta *m = NULL;
 907 e6bcace5 2021-06-22 stsp 
 908 05118f5a 2021-06-22 stsp 	if (loose_obj_only) {
 909 05118f5a 2021-06-22 stsp 		int is_packed;
 910 05118f5a 2021-06-22 stsp 		err = search_packidx(&is_packed, id, repo);
 911 05118f5a 2021-06-22 stsp 		if (err)
 912 05118f5a 2021-06-22 stsp 			return err;
 913 cdeb891a 2022-03-21 stsp 		if (is_packed && want_meta)
 914 05118f5a 2021-06-22 stsp 			return NULL;
 915 05118f5a 2021-06-22 stsp 	}
 916 05118f5a 2021-06-22 stsp 
 917 67fd6849 2022-02-13 stsp 	if (want_meta) {
 918 67fd6849 2022-02-13 stsp 		err = alloc_meta(&m, id, path, obj_type, mtime);
 919 6863cbf9 2022-03-21 stsp 		if (err)
 920 6863cbf9 2022-03-21 stsp 			return err;
 921 6863cbf9 2022-03-21 stsp 
 922 6863cbf9 2022-03-21 stsp 		(*nfound)++;
 923 6863cbf9 2022-03-21 stsp 		err = report_progress(progress_cb, progress_arg, rl,
 924 6863cbf9 2022-03-21 stsp 		    *ncolored, *nfound, *ntrees, 0L, 0, 0, 0, 0);
 925 bb6672b6 2022-04-14 tb 		if (err) {
 926 bb6672b6 2022-04-14 tb 			clear_meta(m);
 927 bb6672b6 2022-04-14 tb 			free(m);
 928 67fd6849 2022-02-13 stsp 			return err;
 929 bb6672b6 2022-04-14 tb 		}
 930 e6bcace5 2021-06-22 stsp 	}
 931 e6bcace5 2021-06-22 stsp 
 932 bb6672b6 2022-04-14 tb 	err = got_object_idset_add(idset, id, m);
 933 bb6672b6 2022-04-14 tb 	if (err) {
 934 bb6672b6 2022-04-14 tb 		clear_meta(m);
 935 bb6672b6 2022-04-14 tb 		free(m);
 936 bb6672b6 2022-04-14 tb 	}
 937 bb6672b6 2022-04-14 tb 	return err;
 938 e6bcace5 2021-06-22 stsp }
 939 e6bcace5 2021-06-22 stsp 
 940 e6bcace5 2021-06-22 stsp static const struct got_error *
 941 67fd6849 2022-02-13 stsp load_tree_entries(struct got_object_id_queue *ids, int want_meta,
 942 2f8438b0 2022-05-04 stsp     struct got_object_idset *idset, struct got_object_idset *idset_exclude,
 943 2f8438b0 2022-05-04 stsp     struct got_object_id *tree_id,
 944 e6bcace5 2021-06-22 stsp     const char *dpath, time_t mtime, struct got_repository *repo,
 945 b8af7c06 2022-03-15 stsp     int loose_obj_only, int *ncolored, int *nfound, int *ntrees,
 946 b8af7c06 2022-03-15 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
 947 b8af7c06 2022-03-15 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
 948 e6bcace5 2021-06-22 stsp {
 949 e6bcace5 2021-06-22 stsp 	const struct got_error *err;
 950 e6bcace5 2021-06-22 stsp 	struct got_tree_object *tree;
 951 e6bcace5 2021-06-22 stsp 	char *p = NULL;
 952 e6bcace5 2021-06-22 stsp 	int i;
 953 e6bcace5 2021-06-22 stsp 
 954 e6bcace5 2021-06-22 stsp 	err = got_object_open_as_tree(&tree, repo, tree_id);
 955 b8af7c06 2022-03-15 stsp 	if (err)
 956 b8af7c06 2022-03-15 stsp 		return err;
 957 b8af7c06 2022-03-15 stsp 
 958 b8af7c06 2022-03-15 stsp 	(*ntrees)++;
 959 b8af7c06 2022-03-15 stsp 	err = report_progress(progress_cb, progress_arg, rl,
 960 b8af7c06 2022-03-15 stsp 	    *ncolored, *nfound, *ntrees, 0L, 0, 0, 0, 0);
 961 e6bcace5 2021-06-22 stsp 	if (err)
 962 e6bcace5 2021-06-22 stsp 		return err;
 963 e6bcace5 2021-06-22 stsp 
 964 e6bcace5 2021-06-22 stsp 	for (i = 0; i < got_object_tree_get_nentries(tree); i++) {
 965 e6bcace5 2021-06-22 stsp 		struct got_tree_entry *e = got_object_tree_get_entry(tree, i);
 966 e6bcace5 2021-06-22 stsp 		struct got_object_id *id = got_tree_entry_get_id(e);
 967 e6bcace5 2021-06-22 stsp 		mode_t mode = got_tree_entry_get_mode(e);
 968 e6bcace5 2021-06-22 stsp 
 969 e6bcace5 2021-06-22 stsp 		if (cancel_cb) {
 970 e6bcace5 2021-06-22 stsp 			err = (*cancel_cb)(cancel_arg);
 971 e6bcace5 2021-06-22 stsp 			if (err)
 972 e6bcace5 2021-06-22 stsp 				break;
 973 e6bcace5 2021-06-22 stsp 		}
 974 e6bcace5 2021-06-22 stsp 
 975 3af9de88 2021-09-22 stsp 		if (got_object_tree_entry_is_submodule(e) ||
 976 2f8438b0 2022-05-04 stsp 		    got_object_idset_contains(idset, id) ||
 977 2f8438b0 2022-05-04 stsp 		    got_object_idset_contains(idset_exclude, id))
 978 e6bcace5 2021-06-22 stsp 			continue;
 979 e6bcace5 2021-06-22 stsp 		
 980 e6bcace5 2021-06-22 stsp 		if (asprintf(&p, "%s%s%s", dpath, dpath[0] != '\0' ? "/" : "",
 981 e6bcace5 2021-06-22 stsp 		    got_tree_entry_get_name(e)) == -1) {
 982 e6bcace5 2021-06-22 stsp 			err = got_error_from_errno("asprintf");
 983 e6bcace5 2021-06-22 stsp 			break;
 984 e6bcace5 2021-06-22 stsp 		}
 985 e6bcace5 2021-06-22 stsp 
 986 e6bcace5 2021-06-22 stsp 		if (S_ISDIR(mode)) {
 987 e6bcace5 2021-06-22 stsp 			struct got_object_qid *qid;
 988 e6bcace5 2021-06-22 stsp 			err = got_object_qid_alloc(&qid, id);
 989 e6bcace5 2021-06-22 stsp 			if (err)
 990 e6bcace5 2021-06-22 stsp 				break;
 991 dbdddfee 2021-06-23 naddy 			STAILQ_INSERT_TAIL(ids, qid, entry);
 992 3af9de88 2021-09-22 stsp 		} else if (S_ISREG(mode) || S_ISLNK(mode)) {
 993 2f8438b0 2022-05-04 stsp 			err = add_object(want_meta,
 994 2f8438b0 2022-05-04 stsp 			    want_meta ? idset : idset_exclude, id, p,
 995 6863cbf9 2022-03-21 stsp 			    GOT_OBJ_TYPE_BLOB, mtime, loose_obj_only, repo,
 996 6863cbf9 2022-03-21 stsp 			    ncolored, nfound, ntrees,
 997 6863cbf9 2022-03-21 stsp 			    progress_cb, progress_arg, rl);
 998 b8af7c06 2022-03-15 stsp 			if (err)
 999 b8af7c06 2022-03-15 stsp 				break;
1000 e6bcace5 2021-06-22 stsp 		}
1001 e6bcace5 2021-06-22 stsp 		free(p);
1002 e6bcace5 2021-06-22 stsp 		p = NULL;
1003 e6bcace5 2021-06-22 stsp 	}
1004 e6bcace5 2021-06-22 stsp 
1005 e6bcace5 2021-06-22 stsp 	got_object_tree_close(tree);
1006 e6bcace5 2021-06-22 stsp 	free(p);
1007 e6bcace5 2021-06-22 stsp 	return err;
1008 e6bcace5 2021-06-22 stsp }
1009 e6bcace5 2021-06-22 stsp 
1010 e6bcace5 2021-06-22 stsp static const struct got_error *
1011 67fd6849 2022-02-13 stsp load_tree(int want_meta, struct got_object_idset *idset,
1012 2f8438b0 2022-05-04 stsp     struct got_object_idset *idset_exclude,
1013 e6bcace5 2021-06-22 stsp     struct got_object_id *tree_id, const char *dpath, time_t mtime,
1014 b8af7c06 2022-03-15 stsp     struct got_repository *repo, int loose_obj_only,
1015 b8af7c06 2022-03-15 stsp     int *ncolored, int *nfound, int *ntrees,
1016 b8af7c06 2022-03-15 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
1017 b8af7c06 2022-03-15 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
1018 e6bcace5 2021-06-22 stsp {
1019 e6bcace5 2021-06-22 stsp 	const struct got_error *err = NULL;
1020 e6bcace5 2021-06-22 stsp 	struct got_object_id_queue tree_ids;
1021 e6bcace5 2021-06-22 stsp 	struct got_object_qid *qid;
1022 e6bcace5 2021-06-22 stsp 
1023 2f8438b0 2022-05-04 stsp 	if (got_object_idset_contains(idset, tree_id) ||
1024 2f8438b0 2022-05-04 stsp 	    got_object_idset_contains(idset_exclude, tree_id))
1025 e6bcace5 2021-06-22 stsp 		return NULL;
1026 e6bcace5 2021-06-22 stsp 
1027 e6bcace5 2021-06-22 stsp 	err = got_object_qid_alloc(&qid, tree_id);
1028 e6bcace5 2021-06-22 stsp 	if (err)
1029 e6bcace5 2021-06-22 stsp 		return err;
1030 e6bcace5 2021-06-22 stsp 
1031 dbdddfee 2021-06-23 naddy 	STAILQ_INIT(&tree_ids);
1032 dbdddfee 2021-06-23 naddy 	STAILQ_INSERT_TAIL(&tree_ids, qid, entry);
1033 e6bcace5 2021-06-22 stsp 
1034 dbdddfee 2021-06-23 naddy 	while (!STAILQ_EMPTY(&tree_ids)) {
1035 e6bcace5 2021-06-22 stsp 		if (cancel_cb) {
1036 e6bcace5 2021-06-22 stsp 			err = (*cancel_cb)(cancel_arg);
1037 e6bcace5 2021-06-22 stsp 			if (err)
1038 e6bcace5 2021-06-22 stsp 				break;
1039 e6bcace5 2021-06-22 stsp 		}
1040 e6bcace5 2021-06-22 stsp 
1041 dbdddfee 2021-06-23 naddy 		qid = STAILQ_FIRST(&tree_ids);
1042 dbdddfee 2021-06-23 naddy 		STAILQ_REMOVE_HEAD(&tree_ids, entry);
1043 e6bcace5 2021-06-22 stsp 
1044 2f8438b0 2022-05-04 stsp 		if (got_object_idset_contains(idset, &qid->id) ||
1045 2f8438b0 2022-05-04 stsp 		    got_object_idset_contains(idset_exclude, &qid->id)) {
1046 e6bcace5 2021-06-22 stsp 			got_object_qid_free(qid);
1047 e6bcace5 2021-06-22 stsp 			continue;
1048 e6bcace5 2021-06-22 stsp 		}
1049 e6bcace5 2021-06-22 stsp 
1050 2f8438b0 2022-05-04 stsp 		err = add_object(want_meta, want_meta ? idset : idset_exclude,
1051 2f8438b0 2022-05-04 stsp 		    &qid->id, dpath, GOT_OBJ_TYPE_TREE,
1052 2f8438b0 2022-05-04 stsp 		    mtime, loose_obj_only, repo,
1053 6863cbf9 2022-03-21 stsp 		    ncolored, nfound, ntrees, progress_cb, progress_arg, rl);
1054 e6bcace5 2021-06-22 stsp 		if (err) {
1055 e6bcace5 2021-06-22 stsp 			got_object_qid_free(qid);
1056 e6bcace5 2021-06-22 stsp 			break;
1057 e6bcace5 2021-06-22 stsp 		}
1058 e6bcace5 2021-06-22 stsp 
1059 2f8438b0 2022-05-04 stsp 		err = load_tree_entries(&tree_ids, want_meta, idset,
1060 2f8438b0 2022-05-04 stsp 		    idset_exclude, &qid->id,
1061 b8af7c06 2022-03-15 stsp 		    dpath, mtime, repo, loose_obj_only, ncolored, nfound,
1062 b8af7c06 2022-03-15 stsp 		    ntrees, progress_cb, progress_arg, rl,
1063 b8af7c06 2022-03-15 stsp 		    cancel_cb, cancel_arg);
1064 e6bcace5 2021-06-22 stsp 		got_object_qid_free(qid);
1065 e6bcace5 2021-06-22 stsp 		if (err)
1066 e6bcace5 2021-06-22 stsp 			break;
1067 e6bcace5 2021-06-22 stsp 	}
1068 e6bcace5 2021-06-22 stsp 
1069 e6bcace5 2021-06-22 stsp 	got_object_id_queue_free(&tree_ids);
1070 e6bcace5 2021-06-22 stsp 	return err;
1071 e6bcace5 2021-06-22 stsp }
1072 e6bcace5 2021-06-22 stsp 
1073 e6bcace5 2021-06-22 stsp static const struct got_error *
1074 67fd6849 2022-02-13 stsp load_commit(int want_meta, struct got_object_idset *idset,
1075 2f8438b0 2022-05-04 stsp     struct got_object_idset *idset_exclude,
1076 05118f5a 2021-06-22 stsp     struct got_object_id *id, struct got_repository *repo, int loose_obj_only,
1077 b8af7c06 2022-03-15 stsp     int *ncolored, int *nfound, int *ntrees,
1078 b8af7c06 2022-03-15 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
1079 b8af7c06 2022-03-15 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
1080 e6bcace5 2021-06-22 stsp {
1081 e6bcace5 2021-06-22 stsp 	const struct got_error *err;
1082 e6bcace5 2021-06-22 stsp 	struct got_commit_object *commit;
1083 e6bcace5 2021-06-22 stsp 
1084 2f8438b0 2022-05-04 stsp 	if (got_object_idset_contains(idset, id) ||
1085 2f8438b0 2022-05-04 stsp 	    got_object_idset_contains(idset_exclude, id))
1086 e6bcace5 2021-06-22 stsp 		return NULL;
1087 05118f5a 2021-06-22 stsp 
1088 05118f5a 2021-06-22 stsp 	if (loose_obj_only) {
1089 05118f5a 2021-06-22 stsp 		int is_packed;
1090 05118f5a 2021-06-22 stsp 		err = search_packidx(&is_packed, id, repo);
1091 05118f5a 2021-06-22 stsp 		if (err)
1092 05118f5a 2021-06-22 stsp 			return err;
1093 cdeb891a 2022-03-21 stsp 		if (is_packed && want_meta)
1094 05118f5a 2021-06-22 stsp 			return NULL;
1095 05118f5a 2021-06-22 stsp 	}
1096 e6bcace5 2021-06-22 stsp 
1097 e6bcace5 2021-06-22 stsp 	err = got_object_open_as_commit(&commit, repo, id);
1098 e6bcace5 2021-06-22 stsp 	if (err)
1099 e6bcace5 2021-06-22 stsp 		return err;
1100 e6bcace5 2021-06-22 stsp 
1101 2f8438b0 2022-05-04 stsp 	err = add_object(want_meta, want_meta ? idset : idset_exclude,
1102 2f8438b0 2022-05-04 stsp 	    id, "", GOT_OBJ_TYPE_COMMIT,
1103 05118f5a 2021-06-22 stsp 	    got_object_commit_get_committer_time(commit),
1104 6863cbf9 2022-03-21 stsp 	    loose_obj_only, repo,
1105 6863cbf9 2022-03-21 stsp 	    ncolored, nfound, ntrees, progress_cb, progress_arg, rl);
1106 e6bcace5 2021-06-22 stsp 	if (err)
1107 e6bcace5 2021-06-22 stsp 		goto done;
1108 b8af7c06 2022-03-15 stsp 
1109 2f8438b0 2022-05-04 stsp 	err = load_tree(want_meta, idset, idset_exclude,
1110 2f8438b0 2022-05-04 stsp 	    got_object_commit_get_tree_id(commit),
1111 05118f5a 2021-06-22 stsp 	    "", got_object_commit_get_committer_time(commit),
1112 b8af7c06 2022-03-15 stsp 	    repo, loose_obj_only, ncolored, nfound, ntrees,
1113 b8af7c06 2022-03-15 stsp 	    progress_cb, progress_arg, rl, cancel_cb, cancel_arg);
1114 e6bcace5 2021-06-22 stsp done:
1115 e6bcace5 2021-06-22 stsp 	got_object_commit_close(commit);
1116 e6bcace5 2021-06-22 stsp 	return err;
1117 e6bcace5 2021-06-22 stsp }
1118 e6bcace5 2021-06-22 stsp 
1119 05118f5a 2021-06-22 stsp static const struct got_error *
1120 67fd6849 2022-02-13 stsp load_tag(int want_meta, struct got_object_idset *idset,
1121 2f8438b0 2022-05-04 stsp     struct got_object_idset *idset_exclude,
1122 05118f5a 2021-06-22 stsp     struct got_object_id *id, struct got_repository *repo, int loose_obj_only,
1123 b8af7c06 2022-03-15 stsp     int *ncolored, int *nfound, int *ntrees,
1124 b8af7c06 2022-03-15 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
1125 b8af7c06 2022-03-15 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
1126 05118f5a 2021-06-22 stsp {
1127 05118f5a 2021-06-22 stsp 	const struct got_error *err;
1128 05118f5a 2021-06-22 stsp 	struct got_tag_object *tag = NULL;
1129 05118f5a 2021-06-22 stsp 
1130 2f8438b0 2022-05-04 stsp 	if (got_object_idset_contains(idset, id) ||
1131 2f8438b0 2022-05-04 stsp 	    got_object_idset_contains(idset_exclude, id))
1132 05118f5a 2021-06-22 stsp 		return NULL;
1133 05118f5a 2021-06-22 stsp 
1134 05118f5a 2021-06-22 stsp 	if (loose_obj_only) {
1135 05118f5a 2021-06-22 stsp 		int is_packed;
1136 05118f5a 2021-06-22 stsp 		err = search_packidx(&is_packed, id, repo);
1137 05118f5a 2021-06-22 stsp 		if (err)
1138 05118f5a 2021-06-22 stsp 			return err;
1139 cdeb891a 2022-03-21 stsp 		if (is_packed && want_meta)
1140 05118f5a 2021-06-22 stsp 			return NULL;
1141 05118f5a 2021-06-22 stsp 	}
1142 05118f5a 2021-06-22 stsp 
1143 05118f5a 2021-06-22 stsp 	err = got_object_open_as_tag(&tag, repo, id);
1144 05118f5a 2021-06-22 stsp 	if (err)
1145 05118f5a 2021-06-22 stsp 		return err;
1146 05118f5a 2021-06-22 stsp 
1147 2f8438b0 2022-05-04 stsp 	err = add_object(want_meta, want_meta ? idset : idset_exclude,
1148 2f8438b0 2022-05-04 stsp 	    id, "", GOT_OBJ_TYPE_TAG,
1149 6863cbf9 2022-03-21 stsp 	    got_object_tag_get_tagger_time(tag), loose_obj_only, repo,
1150 6863cbf9 2022-03-21 stsp 	    ncolored, nfound, ntrees, progress_cb, progress_arg, rl);
1151 05118f5a 2021-06-22 stsp 	if (err)
1152 05118f5a 2021-06-22 stsp 		goto done;
1153 05118f5a 2021-06-22 stsp 
1154 05118f5a 2021-06-22 stsp 	switch (got_object_tag_get_object_type(tag)) {
1155 05118f5a 2021-06-22 stsp 	case GOT_OBJ_TYPE_COMMIT:
1156 2f8438b0 2022-05-04 stsp 		err = load_commit(want_meta, idset, idset_exclude,
1157 b8af7c06 2022-03-15 stsp 		    got_object_tag_get_object_id(tag), repo, loose_obj_only,
1158 b8af7c06 2022-03-15 stsp 		    ncolored, nfound, ntrees, progress_cb, progress_arg, rl,
1159 b8af7c06 2022-03-15 stsp 		    cancel_cb, cancel_arg);
1160 05118f5a 2021-06-22 stsp 		break;
1161 05118f5a 2021-06-22 stsp 	case GOT_OBJ_TYPE_TREE:
1162 2f8438b0 2022-05-04 stsp 		err = load_tree(want_meta, idset, idset_exclude,
1163 67fd6849 2022-02-13 stsp 		    got_object_tag_get_object_id(tag), "",
1164 b8af7c06 2022-03-15 stsp 		    got_object_tag_get_tagger_time(tag), repo, loose_obj_only,
1165 b8af7c06 2022-03-15 stsp 		    ncolored, nfound, ntrees, progress_cb, progress_arg, rl,
1166 b8af7c06 2022-03-15 stsp 		    cancel_cb, cancel_arg);
1167 05118f5a 2021-06-22 stsp 		break;
1168 05118f5a 2021-06-22 stsp 	default:
1169 05118f5a 2021-06-22 stsp 		break;
1170 05118f5a 2021-06-22 stsp 	}
1171 05118f5a 2021-06-22 stsp 
1172 05118f5a 2021-06-22 stsp done:
1173 05118f5a 2021-06-22 stsp 	got_object_tag_close(tag);
1174 05118f5a 2021-06-22 stsp 	return err;
1175 05118f5a 2021-06-22 stsp }
1176 05118f5a 2021-06-22 stsp 
1177 e6bcace5 2021-06-22 stsp enum findtwixt_color {
1178 e6bcace5 2021-06-22 stsp 	COLOR_KEEP = 0,
1179 e6bcace5 2021-06-22 stsp 	COLOR_DROP,
1180 e6bcace5 2021-06-22 stsp 	COLOR_BLANK,
1181 70f8f24d 2022-04-14 stsp 	COLOR_SKIP,
1182 e6bcace5 2021-06-22 stsp };
1183 70f8f24d 2022-04-14 stsp 
1184 e6bcace5 2021-06-22 stsp static const int findtwixt_colors[] = {
1185 e6bcace5 2021-06-22 stsp 	COLOR_KEEP,
1186 e6bcace5 2021-06-22 stsp 	COLOR_DROP,
1187 70f8f24d 2022-04-14 stsp 	COLOR_BLANK,
1188 70f8f24d 2022-04-14 stsp 	COLOR_SKIP,
1189 e6bcace5 2021-06-22 stsp };
1190 e6bcace5 2021-06-22 stsp 
1191 e6bcace5 2021-06-22 stsp static const struct got_error *
1192 70f8f24d 2022-04-14 stsp paint_commit(struct got_object_qid *qid, int color)
1193 e6bcace5 2021-06-22 stsp {
1194 70f8f24d 2022-04-14 stsp 	if (color < 0 || color >= nitems(findtwixt_colors))
1195 70f8f24d 2022-04-14 stsp 		return got_error(GOT_ERR_RANGE);
1196 e6bcace5 2021-06-22 stsp 
1197 e6bcace5 2021-06-22 stsp 	qid->data = (void *)&findtwixt_colors[color];
1198 e6bcace5 2021-06-22 stsp 	return NULL;
1199 e6bcace5 2021-06-22 stsp }
1200 e6bcace5 2021-06-22 stsp 
1201 e6bcace5 2021-06-22 stsp static const struct got_error *
1202 70f8f24d 2022-04-14 stsp queue_commit_id(struct got_object_id_queue *ids, struct got_object_id *id,
1203 70f8f24d 2022-04-14 stsp     int color, struct got_repository *repo)
1204 e6bcace5 2021-06-22 stsp {
1205 70f8f24d 2022-04-14 stsp 	const struct got_error *err;
1206 e6bcace5 2021-06-22 stsp 	struct got_object_qid *qid;
1207 e6bcace5 2021-06-22 stsp 
1208 e6bcace5 2021-06-22 stsp 	err = got_object_qid_alloc(&qid, id);
1209 e6bcace5 2021-06-22 stsp 	if (err)
1210 e6bcace5 2021-06-22 stsp 		return err;
1211 e6bcace5 2021-06-22 stsp 
1212 70f8f24d 2022-04-14 stsp 	STAILQ_INSERT_TAIL(ids, qid, entry);
1213 70f8f24d 2022-04-14 stsp 	return paint_commit(qid, color);
1214 e6bcace5 2021-06-22 stsp }
1215 e6bcace5 2021-06-22 stsp 
1216 e6bcace5 2021-06-22 stsp struct append_id_arg {
1217 e6bcace5 2021-06-22 stsp 	struct got_object_id **array;
1218 e6bcace5 2021-06-22 stsp 	int idx;
1219 70f8f24d 2022-04-14 stsp 	struct got_object_idset *drop;
1220 70f8f24d 2022-04-14 stsp 	struct got_object_idset *skip;
1221 e6bcace5 2021-06-22 stsp };
1222 e6bcace5 2021-06-22 stsp 
1223 e6bcace5 2021-06-22 stsp static const struct got_error *
1224 e6bcace5 2021-06-22 stsp append_id(struct got_object_id *id, void *data, void *arg)
1225 e6bcace5 2021-06-22 stsp {
1226 e6bcace5 2021-06-22 stsp 	struct append_id_arg *a = arg;
1227 e6bcace5 2021-06-22 stsp 
1228 70f8f24d 2022-04-14 stsp 	if (got_object_idset_contains(a->skip, id) ||
1229 70f8f24d 2022-04-14 stsp 	    got_object_idset_contains(a->drop, id))
1230 70f8f24d 2022-04-14 stsp 		return NULL;
1231 70f8f24d 2022-04-14 stsp 
1232 70f8f24d 2022-04-14 stsp 	a->array[++a->idx] = got_object_id_dup(id);
1233 e6bcace5 2021-06-22 stsp 	if (a->array[a->idx] == NULL)
1234 e6bcace5 2021-06-22 stsp 		return got_error_from_errno("got_object_id_dup");
1235 e6bcace5 2021-06-22 stsp 
1236 e6bcace5 2021-06-22 stsp 	return NULL;
1237 29e0594f 2022-04-09 stsp }
1238 29e0594f 2022-04-09 stsp 
1239 29e0594f 2022-04-09 stsp static const struct got_error *
1240 29e0594f 2022-04-09 stsp queue_commit_or_tag_id(struct got_object_id *id, int color,
1241 29e0594f 2022-04-09 stsp     struct got_object_id_queue *ids, struct got_repository *repo)
1242 29e0594f 2022-04-09 stsp {
1243 29e0594f 2022-04-09 stsp 	const struct got_error *err;
1244 29e0594f 2022-04-09 stsp 	struct got_tag_object *tag = NULL;
1245 29e0594f 2022-04-09 stsp 	int obj_type;
1246 29e0594f 2022-04-09 stsp 
1247 29e0594f 2022-04-09 stsp 	err = got_object_get_type(&obj_type, repo, id);
1248 29e0594f 2022-04-09 stsp 	if (err)
1249 29e0594f 2022-04-09 stsp 		return err;
1250 29e0594f 2022-04-09 stsp 
1251 29e0594f 2022-04-09 stsp 	if (obj_type == GOT_OBJ_TYPE_TAG) {
1252 29e0594f 2022-04-09 stsp 		err = got_object_open_as_tag(&tag, repo, id);
1253 29e0594f 2022-04-09 stsp 		if (err)
1254 29e0594f 2022-04-09 stsp 			return err;
1255 29e0594f 2022-04-09 stsp 		obj_type = got_object_tag_get_object_type(tag);
1256 29e0594f 2022-04-09 stsp 		id = got_object_tag_get_object_id(tag);
1257 29e0594f 2022-04-09 stsp 	}
1258 29e0594f 2022-04-09 stsp 
1259 29e0594f 2022-04-09 stsp 	if (obj_type == GOT_OBJ_TYPE_COMMIT) {
1260 29e0594f 2022-04-09 stsp 		err = queue_commit_id(ids, id, color, repo);
1261 29e0594f 2022-04-09 stsp 		if (err)
1262 29e0594f 2022-04-09 stsp 			goto done;
1263 29e0594f 2022-04-09 stsp 	}
1264 29e0594f 2022-04-09 stsp done:
1265 29e0594f 2022-04-09 stsp 	if (tag)
1266 29e0594f 2022-04-09 stsp 		got_object_tag_close(tag);
1267 29e0594f 2022-04-09 stsp 	return err;
1268 e6bcace5 2021-06-22 stsp }
1269 e6bcace5 2021-06-22 stsp 
1270 e6bcace5 2021-06-22 stsp static const struct got_error *
1271 70f8f24d 2022-04-14 stsp paint_commits(int *ncolored, struct got_object_id_queue *ids, int nids,
1272 14dbbf48 2022-04-10 stsp     struct got_object_idset *keep, struct got_object_idset *drop,
1273 70f8f24d 2022-04-14 stsp     struct got_object_idset *skip, struct got_repository *repo,
1274 b8af7c06 2022-03-15 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
1275 b8af7c06 2022-03-15 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
1276 e6bcace5 2021-06-22 stsp {
1277 e6bcace5 2021-06-22 stsp 	const struct got_error *err = NULL;
1278 14dbbf48 2022-04-10 stsp 	struct got_commit_object *commit = NULL;
1279 70f8f24d 2022-04-14 stsp 	const struct got_object_id_queue *parents;
1280 e6bcace5 2021-06-22 stsp 	struct got_object_qid *qid;
1281 70f8f24d 2022-04-14 stsp 	int nqueued = nids, nskip = 0;
1282 e6bcace5 2021-06-22 stsp 
1283 70f8f24d 2022-04-14 stsp 	while (!STAILQ_EMPTY(ids) && nskip != nqueued) {
1284 70f8f24d 2022-04-14 stsp 		int color;
1285 03c03172 2022-04-10 stsp 
1286 57bc7b6d 2022-04-10 stsp 		if (cancel_cb) {
1287 57bc7b6d 2022-04-10 stsp 			err = cancel_cb(cancel_arg);
1288 57bc7b6d 2022-04-10 stsp 			if (err)
1289 14dbbf48 2022-04-10 stsp 				break;
1290 57bc7b6d 2022-04-10 stsp 		}
1291 57bc7b6d 2022-04-10 stsp 
1292 14dbbf48 2022-04-10 stsp 		qid = STAILQ_FIRST(ids);
1293 70f8f24d 2022-04-14 stsp 		STAILQ_REMOVE_HEAD(ids, entry);
1294 70f8f24d 2022-04-14 stsp 		nqueued--;
1295 70f8f24d 2022-04-14 stsp 		color = *((int *)qid->data);
1296 70f8f24d 2022-04-14 stsp 		if (color == COLOR_SKIP)
1297 70f8f24d 2022-04-14 stsp 			nskip--;
1298 e6bcace5 2021-06-22 stsp 
1299 d7b5a0e8 2022-04-20 stsp 		if (got_object_idset_contains(skip, &qid->id)) {
1300 70f8f24d 2022-04-14 stsp 			got_object_qid_free(qid);
1301 70f8f24d 2022-04-14 stsp 			continue;
1302 70f8f24d 2022-04-14 stsp 		}
1303 b8af7c06 2022-03-15 stsp 
1304 70f8f24d 2022-04-14 stsp 		switch (color) {
1305 70f8f24d 2022-04-14 stsp 		case COLOR_KEEP:
1306 d7b5a0e8 2022-04-20 stsp 			if (got_object_idset_contains(keep, &qid->id)) {
1307 70f8f24d 2022-04-14 stsp 				got_object_qid_free(qid);
1308 70f8f24d 2022-04-14 stsp 				continue;
1309 70f8f24d 2022-04-14 stsp 			}
1310 d7b5a0e8 2022-04-20 stsp 			if (got_object_idset_contains(drop, &qid->id)) {
1311 70f8f24d 2022-04-14 stsp 				err = paint_commit(qid, COLOR_SKIP);
1312 70f8f24d 2022-04-14 stsp 				if (err)
1313 70f8f24d 2022-04-14 stsp 					goto done;
1314 70f8f24d 2022-04-14 stsp 				nskip++;
1315 70f8f24d 2022-04-14 stsp 			} else
1316 70f8f24d 2022-04-14 stsp 				(*ncolored)++;
1317 d7b5a0e8 2022-04-20 stsp 			err = got_object_idset_add(keep, &qid->id, NULL);
1318 70f8f24d 2022-04-14 stsp 			if (err)
1319 70f8f24d 2022-04-14 stsp 				goto done;
1320 70f8f24d 2022-04-14 stsp 			break;
1321 70f8f24d 2022-04-14 stsp 		case COLOR_DROP:
1322 d7b5a0e8 2022-04-20 stsp 			if (got_object_idset_contains(drop, &qid->id)) {
1323 70f8f24d 2022-04-14 stsp 				got_object_qid_free(qid);
1324 70f8f24d 2022-04-14 stsp 				continue;
1325 70f8f24d 2022-04-14 stsp 			}
1326 d7b5a0e8 2022-04-20 stsp 			if (got_object_idset_contains(keep, &qid->id)) {
1327 70f8f24d 2022-04-14 stsp 				err = paint_commit(qid, COLOR_SKIP);
1328 70f8f24d 2022-04-14 stsp 				if (err)
1329 70f8f24d 2022-04-14 stsp 					goto done;
1330 70f8f24d 2022-04-14 stsp 				nskip++;
1331 70f8f24d 2022-04-14 stsp 			} else
1332 70f8f24d 2022-04-14 stsp 				(*ncolored)++;
1333 d7b5a0e8 2022-04-20 stsp 			err = got_object_idset_add(drop, &qid->id, NULL);
1334 70f8f24d 2022-04-14 stsp 			if (err)
1335 70f8f24d 2022-04-14 stsp 				goto done;
1336 70f8f24d 2022-04-14 stsp 			break;
1337 70f8f24d 2022-04-14 stsp 		case COLOR_SKIP:
1338 d7b5a0e8 2022-04-20 stsp 			if (!got_object_idset_contains(skip, &qid->id)) {
1339 d7b5a0e8 2022-04-20 stsp 				err = got_object_idset_add(skip, &qid->id,
1340 d7b5a0e8 2022-04-20 stsp 				    NULL);
1341 70f8f24d 2022-04-14 stsp 				if (err)
1342 70f8f24d 2022-04-14 stsp 					goto done;
1343 70f8f24d 2022-04-14 stsp 			}
1344 70f8f24d 2022-04-14 stsp 			break;
1345 70f8f24d 2022-04-14 stsp 		default:
1346 70f8f24d 2022-04-14 stsp 			/* should not happen */
1347 70f8f24d 2022-04-14 stsp 			err = got_error_fmt(GOT_ERR_NOT_IMPL,
1348 70f8f24d 2022-04-14 stsp 			    "%s invalid commit color %d", __func__, color);
1349 70f8f24d 2022-04-14 stsp 			goto done;
1350 70f8f24d 2022-04-14 stsp 		}
1351 70f8f24d 2022-04-14 stsp 
1352 b8af7c06 2022-03-15 stsp 		err = report_progress(progress_cb, progress_arg, rl,
1353 b8af7c06 2022-03-15 stsp 		    *ncolored, 0, 0, 0L, 0, 0, 0, 0);
1354 b8af7c06 2022-03-15 stsp 		if (err)
1355 14dbbf48 2022-04-10 stsp 			break;
1356 e6bcace5 2021-06-22 stsp 
1357 e6bcace5 2021-06-22 stsp 
1358 d7b5a0e8 2022-04-20 stsp 		err = got_object_open_as_commit(&commit, repo, &qid->id);
1359 70f8f24d 2022-04-14 stsp 		if (err)
1360 70f8f24d 2022-04-14 stsp 			break;
1361 e6bcace5 2021-06-22 stsp 
1362 70f8f24d 2022-04-14 stsp 		parents = got_object_commit_get_parent_ids(commit);
1363 70f8f24d 2022-04-14 stsp 		if (parents) {
1364 70f8f24d 2022-04-14 stsp 			struct got_object_qid *pid;
1365 70f8f24d 2022-04-14 stsp 			color = *((int *)qid->data);
1366 70f8f24d 2022-04-14 stsp 			STAILQ_FOREACH(pid, parents, entry) {
1367 d7b5a0e8 2022-04-20 stsp 				err = queue_commit_id(ids, &pid->id, color,
1368 70f8f24d 2022-04-14 stsp 				    repo);
1369 70f8f24d 2022-04-14 stsp 				if (err)
1370 70f8f24d 2022-04-14 stsp 					break;
1371 70f8f24d 2022-04-14 stsp 				nqueued++;
1372 70f8f24d 2022-04-14 stsp 				if (color == COLOR_SKIP)
1373 70f8f24d 2022-04-14 stsp 					nskip++;
1374 e6bcace5 2021-06-22 stsp 			}
1375 e6bcace5 2021-06-22 stsp 		}
1376 e6bcace5 2021-06-22 stsp 
1377 70f8f24d 2022-04-14 stsp 		got_object_commit_close(commit);
1378 70f8f24d 2022-04-14 stsp 		commit = NULL;
1379 e6bcace5 2021-06-22 stsp 		got_object_qid_free(qid);
1380 e6bcace5 2021-06-22 stsp 	}
1381 70f8f24d 2022-04-14 stsp done:
1382 14dbbf48 2022-04-10 stsp 	if (commit)
1383 14dbbf48 2022-04-10 stsp 		got_object_commit_close(commit);
1384 14dbbf48 2022-04-10 stsp 	return err;
1385 14dbbf48 2022-04-10 stsp }
1386 14dbbf48 2022-04-10 stsp 
1387 14dbbf48 2022-04-10 stsp static const struct got_error *
1388 14dbbf48 2022-04-10 stsp findtwixt(struct got_object_id ***res, int *nres, int *ncolored,
1389 14dbbf48 2022-04-10 stsp     struct got_object_id **head, int nhead,
1390 14dbbf48 2022-04-10 stsp     struct got_object_id **tail, int ntail,
1391 14dbbf48 2022-04-10 stsp     struct got_repository *repo,
1392 14dbbf48 2022-04-10 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
1393 14dbbf48 2022-04-10 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
1394 14dbbf48 2022-04-10 stsp {
1395 14dbbf48 2022-04-10 stsp 	const struct got_error *err = NULL;
1396 14dbbf48 2022-04-10 stsp 	struct got_object_id_queue ids;
1397 70f8f24d 2022-04-14 stsp 	struct got_object_idset *keep, *drop, *skip = NULL;
1398 14dbbf48 2022-04-10 stsp 	int i, nkeep;
1399 14dbbf48 2022-04-10 stsp 
1400 14dbbf48 2022-04-10 stsp 	STAILQ_INIT(&ids);
1401 14dbbf48 2022-04-10 stsp 	*res = NULL;
1402 14dbbf48 2022-04-10 stsp 	*nres = 0;
1403 14dbbf48 2022-04-10 stsp 	*ncolored = 0;
1404 14dbbf48 2022-04-10 stsp 
1405 14dbbf48 2022-04-10 stsp 	keep = got_object_idset_alloc();
1406 14dbbf48 2022-04-10 stsp 	if (keep == NULL)
1407 14dbbf48 2022-04-10 stsp 		return got_error_from_errno("got_object_idset_alloc");
1408 14dbbf48 2022-04-10 stsp 
1409 14dbbf48 2022-04-10 stsp 	drop = got_object_idset_alloc();
1410 14dbbf48 2022-04-10 stsp 	if (drop == NULL) {
1411 14dbbf48 2022-04-10 stsp 		err = got_error_from_errno("got_object_idset_alloc");
1412 14dbbf48 2022-04-10 stsp 		goto done;
1413 14dbbf48 2022-04-10 stsp 	}
1414 14dbbf48 2022-04-10 stsp 
1415 70f8f24d 2022-04-14 stsp 	skip = got_object_idset_alloc();
1416 70f8f24d 2022-04-14 stsp 	if (skip == NULL) {
1417 70f8f24d 2022-04-14 stsp 		err = got_error_from_errno("got_object_idset_alloc");
1418 70f8f24d 2022-04-14 stsp 		goto done;
1419 70f8f24d 2022-04-14 stsp 	}
1420 70f8f24d 2022-04-14 stsp 
1421 14dbbf48 2022-04-10 stsp 	for (i = 0; i < nhead; i++) {
1422 14dbbf48 2022-04-10 stsp 		struct got_object_id *id = head[i];
1423 14dbbf48 2022-04-10 stsp 		if (id == NULL)
1424 14dbbf48 2022-04-10 stsp 			continue;
1425 fbafdecf 2022-04-10 stsp 		err = queue_commit_or_tag_id(id, COLOR_KEEP, &ids, repo);
1426 14dbbf48 2022-04-10 stsp 		if (err)
1427 14dbbf48 2022-04-10 stsp 			goto done;
1428 14dbbf48 2022-04-10 stsp 	}		
1429 14dbbf48 2022-04-10 stsp 
1430 14dbbf48 2022-04-10 stsp 	for (i = 0; i < ntail; i++) {
1431 14dbbf48 2022-04-10 stsp 		struct got_object_id *id = tail[i];
1432 14dbbf48 2022-04-10 stsp 		if (id == NULL)
1433 14dbbf48 2022-04-10 stsp 			continue;
1434 14dbbf48 2022-04-10 stsp 		err = queue_commit_or_tag_id(id, COLOR_DROP, &ids, repo);
1435 14dbbf48 2022-04-10 stsp 		if (err)
1436 14dbbf48 2022-04-10 stsp 			goto done;
1437 14dbbf48 2022-04-10 stsp 	}
1438 14dbbf48 2022-04-10 stsp 
1439 70f8f24d 2022-04-14 stsp 	err = paint_commits(ncolored, &ids, nhead + ntail,
1440 70f8f24d 2022-04-14 stsp 	    keep, drop, skip, repo, progress_cb, progress_arg, rl,
1441 70f8f24d 2022-04-14 stsp 	    cancel_cb, cancel_arg);
1442 14dbbf48 2022-04-10 stsp 	if (err)
1443 14dbbf48 2022-04-10 stsp 		goto done;
1444 14dbbf48 2022-04-10 stsp 
1445 e6bcace5 2021-06-22 stsp 	nkeep = got_object_idset_num_elements(keep);
1446 e6bcace5 2021-06-22 stsp 	if (nkeep > 0) {
1447 e6bcace5 2021-06-22 stsp 		struct append_id_arg arg;
1448 e6bcace5 2021-06-22 stsp 		arg.array = calloc(nkeep, sizeof(struct got_object_id *));
1449 e6bcace5 2021-06-22 stsp 		if (arg.array == NULL) {
1450 e6bcace5 2021-06-22 stsp 			err = got_error_from_errno("calloc");
1451 e6bcace5 2021-06-22 stsp 			goto done;
1452 e6bcace5 2021-06-22 stsp 		}
1453 70f8f24d 2022-04-14 stsp 		arg.idx = -1;
1454 70f8f24d 2022-04-14 stsp 		arg.skip = skip;
1455 70f8f24d 2022-04-14 stsp 		arg.drop = drop;
1456 e6bcace5 2021-06-22 stsp 		err = got_object_idset_for_each(keep, append_id, &arg);
1457 e6bcace5 2021-06-22 stsp 		if (err) {
1458 e6bcace5 2021-06-22 stsp 			free(arg.array);
1459 e6bcace5 2021-06-22 stsp 			goto done;
1460 e6bcace5 2021-06-22 stsp 		}
1461 e6bcace5 2021-06-22 stsp 		*res = arg.array;
1462 70f8f24d 2022-04-14 stsp 		*nres = arg.idx + 1;
1463 e6bcace5 2021-06-22 stsp 	}
1464 e6bcace5 2021-06-22 stsp done:
1465 e6bcace5 2021-06-22 stsp 	got_object_idset_free(keep);
1466 e6bcace5 2021-06-22 stsp 	got_object_idset_free(drop);
1467 70f8f24d 2022-04-14 stsp 	if (skip)
1468 70f8f24d 2022-04-14 stsp 		got_object_idset_free(skip);
1469 e6bcace5 2021-06-22 stsp 	got_object_id_queue_free(&ids);
1470 e6bcace5 2021-06-22 stsp 	return err;
1471 e6bcace5 2021-06-22 stsp }
1472 e6bcace5 2021-06-22 stsp 
1473 e6bcace5 2021-06-22 stsp static const struct got_error *
1474 b8af7c06 2022-03-15 stsp load_object_ids(int *ncolored, int *nfound, int *ntrees,
1475 b8af7c06 2022-03-15 stsp     struct got_object_idset *idset, struct got_object_id **theirs, int ntheirs,
1476 e6bcace5 2021-06-22 stsp     struct got_object_id **ours, int nours, struct got_repository *repo,
1477 b8af7c06 2022-03-15 stsp     int loose_obj_only, got_pack_progress_cb progress_cb, void *progress_arg,
1478 b8af7c06 2022-03-15 stsp     struct got_ratelimit *rl, got_cancel_cb cancel_cb, void *cancel_arg)
1479 e6bcace5 2021-06-22 stsp {
1480 e6bcace5 2021-06-22 stsp 	const struct got_error *err = NULL;
1481 e6bcace5 2021-06-22 stsp 	struct got_object_id **ids = NULL;
1482 05118f5a 2021-06-22 stsp 	int i, nobj = 0, obj_type;
1483 2f8438b0 2022-05-04 stsp 	struct got_object_idset *idset_exclude;
1484 2f8438b0 2022-05-04 stsp 
1485 2f8438b0 2022-05-04 stsp 	idset_exclude = got_object_idset_alloc();
1486 2f8438b0 2022-05-04 stsp 	if (idset_exclude == NULL)
1487 2f8438b0 2022-05-04 stsp 		return got_error_from_errno("got_object_idset_alloc");
1488 e6bcace5 2021-06-22 stsp 
1489 b8af7c06 2022-03-15 stsp 	*ncolored = 0;
1490 b8af7c06 2022-03-15 stsp 	*nfound = 0;
1491 b8af7c06 2022-03-15 stsp 	*ntrees = 0;
1492 b8af7c06 2022-03-15 stsp 
1493 b8af7c06 2022-03-15 stsp 	err = findtwixt(&ids, &nobj, ncolored, ours, nours, theirs, ntheirs,
1494 b8af7c06 2022-03-15 stsp 	    repo, progress_cb, progress_arg, rl, cancel_cb, cancel_arg);
1495 e6bcace5 2021-06-22 stsp 	if (err || nobj == 0)
1496 e6bcace5 2021-06-22 stsp 		goto done;
1497 e6bcace5 2021-06-22 stsp 
1498 e6bcace5 2021-06-22 stsp 	for (i = 0; i < ntheirs; i++) {
1499 05118f5a 2021-06-22 stsp 		struct got_object_id *id = theirs[i];
1500 05118f5a 2021-06-22 stsp 		if (id == NULL)
1501 05118f5a 2021-06-22 stsp 			continue;
1502 05118f5a 2021-06-22 stsp 		err = got_object_get_type(&obj_type, repo, id);
1503 05118f5a 2021-06-22 stsp 		if (err)
1504 05118f5a 2021-06-22 stsp 			return err;
1505 9d34261e 2022-04-07 stsp 		if (obj_type == GOT_OBJ_TYPE_COMMIT) {
1506 2f8438b0 2022-05-04 stsp 			err = load_commit(0, idset, idset_exclude, id, repo,
1507 9d34261e 2022-04-07 stsp 			    loose_obj_only, ncolored, nfound, ntrees,
1508 9d34261e 2022-04-07 stsp 			    progress_cb, progress_arg, rl,
1509 9d34261e 2022-04-07 stsp 			    cancel_cb, cancel_arg);
1510 07165b17 2021-07-01 stsp 			if (err)
1511 07165b17 2021-07-01 stsp 				goto done;
1512 9d34261e 2022-04-07 stsp 		} else if (obj_type == GOT_OBJ_TYPE_TAG) {
1513 2f8438b0 2022-05-04 stsp 			err = load_tag(0, idset, idset_exclude, id, repo,
1514 9d34261e 2022-04-07 stsp 			    loose_obj_only, ncolored, nfound, ntrees,
1515 9d34261e 2022-04-07 stsp 			    progress_cb, progress_arg, rl,
1516 9d34261e 2022-04-07 stsp 			    cancel_cb, cancel_arg);
1517 9d34261e 2022-04-07 stsp 			if (err)
1518 9d34261e 2022-04-07 stsp 				goto done;
1519 9d34261e 2022-04-07 stsp 		}
1520 05118f5a 2021-06-22 stsp 	}
1521 05118f5a 2021-06-22 stsp 
1522 eca70f98 2021-09-03 stsp 	for (i = 0; i < nobj; i++) {
1523 2f8438b0 2022-05-04 stsp 		err = load_commit(1, idset, idset_exclude,
1524 2f8438b0 2022-05-04 stsp 		    ids[i], repo, loose_obj_only, ncolored, nfound, ntrees,
1525 2f8438b0 2022-05-04 stsp 		    progress_cb, progress_arg, rl, cancel_cb, cancel_arg);
1526 eca70f98 2021-09-03 stsp 		if (err)
1527 eca70f98 2021-09-03 stsp 			goto done;
1528 eca70f98 2021-09-03 stsp 	}
1529 eca70f98 2021-09-03 stsp 
1530 05118f5a 2021-06-22 stsp 	for (i = 0; i < nours; i++) {
1531 05118f5a 2021-06-22 stsp 		struct got_object_id *id = ours[i];
1532 67fd6849 2022-02-13 stsp 		struct got_pack_meta *m;
1533 05118f5a 2021-06-22 stsp 		if (id == NULL)
1534 05118f5a 2021-06-22 stsp 			continue;
1535 67fd6849 2022-02-13 stsp 		m = got_object_idset_get(idset, id);
1536 67fd6849 2022-02-13 stsp 		if (m == NULL) {
1537 07165b17 2021-07-01 stsp 			err = got_object_get_type(&obj_type, repo, id);
1538 07165b17 2021-07-01 stsp 			if (err)
1539 07165b17 2021-07-01 stsp 				goto done;
1540 07165b17 2021-07-01 stsp 		} else
1541 67fd6849 2022-02-13 stsp 			obj_type = m->obj_type;
1542 05118f5a 2021-06-22 stsp 		if (obj_type != GOT_OBJ_TYPE_TAG)
1543 05118f5a 2021-06-22 stsp 			continue;
1544 2f8438b0 2022-05-04 stsp 		err = load_tag(1, idset, idset_exclude, id, repo,
1545 2f8438b0 2022-05-04 stsp 		    loose_obj_only, ncolored, nfound, ntrees,
1546 2f8438b0 2022-05-04 stsp 		    progress_cb, progress_arg, rl, cancel_cb, cancel_arg);
1547 05118f5a 2021-06-22 stsp 		if (err)
1548 e6bcace5 2021-06-22 stsp 			goto done;
1549 e6bcace5 2021-06-22 stsp 	}
1550 e6bcace5 2021-06-22 stsp done:
1551 e6bcace5 2021-06-22 stsp 	for (i = 0; i < nobj; i++) {
1552 e6bcace5 2021-06-22 stsp 		free(ids[i]);
1553 e6bcace5 2021-06-22 stsp 	}
1554 e6bcace5 2021-06-22 stsp 	free(ids);
1555 2f8438b0 2022-05-04 stsp 	got_object_idset_free(idset_exclude);
1556 e6bcace5 2021-06-22 stsp 	return err;
1557 e6bcace5 2021-06-22 stsp }
1558 e6bcace5 2021-06-22 stsp 
1559 e6bcace5 2021-06-22 stsp const struct got_error *
1560 2d9e6abf 2022-05-04 stsp hwrite(FILE *f, void *buf, off_t len, SHA1_CTX *ctx)
1561 e6bcace5 2021-06-22 stsp {
1562 e6bcace5 2021-06-22 stsp 	size_t n;
1563 e6bcace5 2021-06-22 stsp 
1564 e6bcace5 2021-06-22 stsp 	SHA1Update(ctx, buf, len);
1565 e6bcace5 2021-06-22 stsp 	n = fwrite(buf, 1, len, f);
1566 e6bcace5 2021-06-22 stsp 	if (n != len)
1567 e6bcace5 2021-06-22 stsp 		return got_ferror(f, GOT_ERR_IO);
1568 2d9e6abf 2022-05-04 stsp 	return NULL;
1569 2d9e6abf 2022-05-04 stsp }
1570 2d9e6abf 2022-05-04 stsp 
1571 2d9e6abf 2022-05-04 stsp const struct got_error *
1572 2d9e6abf 2022-05-04 stsp hcopy(FILE *fsrc, FILE *fdst, off_t len, SHA1_CTX *ctx)
1573 2d9e6abf 2022-05-04 stsp {
1574 2d9e6abf 2022-05-04 stsp 	unsigned char buf[65536];
1575 2d9e6abf 2022-05-04 stsp 	off_t remain = len;
1576 2d9e6abf 2022-05-04 stsp 	size_t n;
1577 2d9e6abf 2022-05-04 stsp 
1578 2d9e6abf 2022-05-04 stsp 	while (remain > 0) {
1579 2d9e6abf 2022-05-04 stsp 		size_t copylen = MIN(sizeof(buf), remain);
1580 2d9e6abf 2022-05-04 stsp 		n = fread(buf, 1, copylen, fsrc);
1581 2d9e6abf 2022-05-04 stsp 		if (n != copylen)
1582 2d9e6abf 2022-05-04 stsp 			return got_ferror(fsrc, GOT_ERR_IO);
1583 2d9e6abf 2022-05-04 stsp 		SHA1Update(ctx, buf, copylen);
1584 2d9e6abf 2022-05-04 stsp 		n = fwrite(buf, 1, copylen, fdst);
1585 2d9e6abf 2022-05-04 stsp 		if (n != copylen)
1586 2d9e6abf 2022-05-04 stsp 			return got_ferror(fdst, GOT_ERR_IO);
1587 2d9e6abf 2022-05-04 stsp 		remain -= copylen;
1588 2d9e6abf 2022-05-04 stsp 	}
1589 2d9e6abf 2022-05-04 stsp 
1590 e6bcace5 2021-06-22 stsp 	return NULL;
1591 e6bcace5 2021-06-22 stsp }
1592 e6bcace5 2021-06-22 stsp 
1593 e6bcace5 2021-06-22 stsp static void
1594 e6bcace5 2021-06-22 stsp putbe32(char *b, uint32_t n)
1595 e6bcace5 2021-06-22 stsp {
1596 e6bcace5 2021-06-22 stsp 	b[0] = n >> 24;
1597 e6bcace5 2021-06-22 stsp 	b[1] = n >> 16;
1598 e6bcace5 2021-06-22 stsp 	b[2] = n >> 8;
1599 e6bcace5 2021-06-22 stsp 	b[3] = n >> 0;
1600 e6bcace5 2021-06-22 stsp }
1601 e6bcace5 2021-06-22 stsp 
1602 e6bcace5 2021-06-22 stsp static int
1603 e6bcace5 2021-06-22 stsp write_order_cmp(const void *pa, const void *pb)
1604 e6bcace5 2021-06-22 stsp {
1605 e6bcace5 2021-06-22 stsp 	struct got_pack_meta *a, *b, *ahd, *bhd;
1606 e6bcace5 2021-06-22 stsp 
1607 e6bcace5 2021-06-22 stsp 	a = *(struct got_pack_meta **)pa;
1608 e6bcace5 2021-06-22 stsp 	b = *(struct got_pack_meta **)pb;
1609 e6bcace5 2021-06-22 stsp 	ahd = (a->head == NULL) ? a : a->head;
1610 e6bcace5 2021-06-22 stsp 	bhd = (b->head == NULL) ? b : b->head;
1611 611e8e31 2022-05-01 stsp 	if (bhd->mtime < ahd->mtime)
1612 611e8e31 2022-05-01 stsp 		return -1;
1613 611e8e31 2022-05-01 stsp 	if (bhd->mtime > ahd->mtime)
1614 611e8e31 2022-05-01 stsp 		return 1;
1615 611e8e31 2022-05-01 stsp 	if (bhd < ahd)
1616 611e8e31 2022-05-01 stsp 		return -1;
1617 611e8e31 2022-05-01 stsp 	if (bhd > ahd)
1618 611e8e31 2022-05-01 stsp 		return 1;
1619 e6bcace5 2021-06-22 stsp 	if (a->nchain != b->nchain)
1620 e6bcace5 2021-06-22 stsp 		return a->nchain - b->nchain;
1621 611e8e31 2022-05-01 stsp 	if (a->mtime < b->mtime)
1622 611e8e31 2022-05-01 stsp 		return -1;
1623 611e8e31 2022-05-01 stsp 	if (a->mtime > b->mtime)
1624 611e8e31 2022-05-01 stsp 		return 1;
1625 611e8e31 2022-05-01 stsp 	return got_object_id_cmp(&a->id, &b->id);
1626 e6bcace5 2021-06-22 stsp }
1627 e6bcace5 2021-06-22 stsp 
1628 67fd6849 2022-02-13 stsp static int
1629 67fd6849 2022-02-13 stsp reuse_write_order_cmp(const void *pa, const void *pb)
1630 67fd6849 2022-02-13 stsp {
1631 67fd6849 2022-02-13 stsp 	struct got_pack_meta *a, *b;
1632 67fd6849 2022-02-13 stsp 
1633 67fd6849 2022-02-13 stsp 	a = *(struct got_pack_meta **)pa;
1634 67fd6849 2022-02-13 stsp 	b = *(struct got_pack_meta **)pb;
1635 67fd6849 2022-02-13 stsp 
1636 67fd6849 2022-02-13 stsp 	if (a->reused_delta_offset < b->reused_delta_offset)
1637 67fd6849 2022-02-13 stsp 		return -1;
1638 67fd6849 2022-02-13 stsp 	if (a->reused_delta_offset > b->reused_delta_offset)
1639 67fd6849 2022-02-13 stsp 		return 1;
1640 67fd6849 2022-02-13 stsp 	return 0;
1641 67fd6849 2022-02-13 stsp }
1642 67fd6849 2022-02-13 stsp 
1643 e6bcace5 2021-06-22 stsp static const struct got_error *
1644 e6bcace5 2021-06-22 stsp packhdr(int *hdrlen, char *hdr, size_t bufsize, int obj_type, size_t len)
1645 e6bcace5 2021-06-22 stsp {
1646 e6bcace5 2021-06-22 stsp 	size_t i;
1647 e6bcace5 2021-06-22 stsp 
1648 e6bcace5 2021-06-22 stsp 	*hdrlen = 0;
1649 e6bcace5 2021-06-22 stsp 
1650 e6bcace5 2021-06-22 stsp 	hdr[0] = obj_type << 4;
1651 e6bcace5 2021-06-22 stsp 	hdr[0] |= len & 0xf;
1652 e6bcace5 2021-06-22 stsp 	len >>= 4;
1653 e6bcace5 2021-06-22 stsp 	for (i = 1; len != 0; i++){
1654 e6bcace5 2021-06-22 stsp 		if (i >= bufsize)
1655 e6bcace5 2021-06-22 stsp 			return got_error(GOT_ERR_NO_SPACE);
1656 e6bcace5 2021-06-22 stsp 		hdr[i - 1] |= GOT_DELTA_SIZE_MORE;
1657 e6bcace5 2021-06-22 stsp 		hdr[i] = len & GOT_DELTA_SIZE_VAL_MASK;
1658 e6bcace5 2021-06-22 stsp 		len >>= GOT_DELTA_SIZE_SHIFT;
1659 e6bcace5 2021-06-22 stsp 	}
1660 e6bcace5 2021-06-22 stsp 
1661 e6bcace5 2021-06-22 stsp 	*hdrlen = i;
1662 e6bcace5 2021-06-22 stsp 	return NULL;
1663 e6bcace5 2021-06-22 stsp }
1664 e6bcace5 2021-06-22 stsp 
1665 e6bcace5 2021-06-22 stsp static int
1666 e6bcace5 2021-06-22 stsp packoff(char *hdr, off_t off)
1667 e6bcace5 2021-06-22 stsp {
1668 e6bcace5 2021-06-22 stsp 	int i, j;
1669 e6bcace5 2021-06-22 stsp 	char rbuf[8];
1670 e6bcace5 2021-06-22 stsp 
1671 e6bcace5 2021-06-22 stsp 	rbuf[0] = off & GOT_DELTA_SIZE_VAL_MASK;
1672 e6bcace5 2021-06-22 stsp 	for (i = 1; (off >>= GOT_DELTA_SIZE_SHIFT) != 0; i++) {
1673 e6bcace5 2021-06-22 stsp 		rbuf[i] = (--off & GOT_DELTA_SIZE_VAL_MASK) |
1674 e6bcace5 2021-06-22 stsp 		    GOT_DELTA_SIZE_MORE;
1675 e6bcace5 2021-06-22 stsp 	}
1676 e6bcace5 2021-06-22 stsp 
1677 e6bcace5 2021-06-22 stsp 	j = 0;
1678 e6bcace5 2021-06-22 stsp 	while (i > 0)
1679 e6bcace5 2021-06-22 stsp 		hdr[j++] = rbuf[--i];
1680 e6bcace5 2021-06-22 stsp 	return j;
1681 e6bcace5 2021-06-22 stsp }
1682 e6bcace5 2021-06-22 stsp 
1683 e6bcace5 2021-06-22 stsp static const struct got_error *
1684 5060d5a1 2022-01-10 stsp deltahdr(off_t *packfile_size, SHA1_CTX *ctx, FILE *packfile,
1685 67fd6849 2022-02-13 stsp     struct got_pack_meta *m)
1686 5060d5a1 2022-01-10 stsp {
1687 5060d5a1 2022-01-10 stsp 	const struct got_error *err;
1688 5060d5a1 2022-01-10 stsp 	char buf[32];
1689 5060d5a1 2022-01-10 stsp 	int nh;
1690 5060d5a1 2022-01-10 stsp 
1691 67fd6849 2022-02-13 stsp 	if (m->prev->off != 0) {
1692 5060d5a1 2022-01-10 stsp 		err = packhdr(&nh, buf, sizeof(buf),
1693 5060d5a1 2022-01-10 stsp 		    GOT_OBJ_TYPE_OFFSET_DELTA, m->delta_len);
1694 5060d5a1 2022-01-10 stsp 		if (err)
1695 5060d5a1 2022-01-10 stsp 			return err;
1696 5060d5a1 2022-01-10 stsp 		nh += packoff(buf + nh, m->off - m->prev->off);
1697 5060d5a1 2022-01-10 stsp 		err = hwrite(packfile, buf, nh, ctx);
1698 5060d5a1 2022-01-10 stsp 		if (err)
1699 5060d5a1 2022-01-10 stsp 			return err;
1700 5060d5a1 2022-01-10 stsp 		*packfile_size += nh;
1701 5060d5a1 2022-01-10 stsp 	} else {
1702 5060d5a1 2022-01-10 stsp 		err = packhdr(&nh, buf, sizeof(buf),
1703 5060d5a1 2022-01-10 stsp 		    GOT_OBJ_TYPE_REF_DELTA, m->delta_len);
1704 5060d5a1 2022-01-10 stsp 		if (err)
1705 5060d5a1 2022-01-10 stsp 			return err;
1706 5060d5a1 2022-01-10 stsp 		err = hwrite(packfile, buf, nh, ctx);
1707 5060d5a1 2022-01-10 stsp 		if (err)
1708 5060d5a1 2022-01-10 stsp 			return err;
1709 5060d5a1 2022-01-10 stsp 		*packfile_size += nh;
1710 5060d5a1 2022-01-10 stsp 		err = hwrite(packfile, m->prev->id.sha1,
1711 5060d5a1 2022-01-10 stsp 		    sizeof(m->prev->id.sha1), ctx);
1712 5060d5a1 2022-01-10 stsp 		if (err)
1713 5060d5a1 2022-01-10 stsp 			return err;
1714 5060d5a1 2022-01-10 stsp 		*packfile_size += sizeof(m->prev->id.sha1);
1715 5060d5a1 2022-01-10 stsp 	}
1716 5060d5a1 2022-01-10 stsp 
1717 5060d5a1 2022-01-10 stsp 	return NULL;
1718 5060d5a1 2022-01-10 stsp }
1719 5060d5a1 2022-01-10 stsp 
1720 5060d5a1 2022-01-10 stsp static const struct got_error *
1721 67fd6849 2022-02-13 stsp write_packed_object(off_t *packfile_size, FILE *packfile,
1722 67fd6849 2022-02-13 stsp     FILE *delta_cache, struct got_pack_meta *m, int *outfd,
1723 67fd6849 2022-02-13 stsp     SHA1_CTX *ctx, struct got_repository *repo)
1724 67fd6849 2022-02-13 stsp {
1725 67fd6849 2022-02-13 stsp 	const struct got_error *err = NULL;
1726 67fd6849 2022-02-13 stsp 	struct got_deflate_checksum csum;
1727 67fd6849 2022-02-13 stsp 	char buf[32];
1728 67fd6849 2022-02-13 stsp 	int nh;
1729 67fd6849 2022-02-13 stsp 	struct got_raw_object *raw = NULL;
1730 67fd6849 2022-02-13 stsp 	off_t outlen;
1731 67fd6849 2022-02-13 stsp 
1732 67fd6849 2022-02-13 stsp 	csum.output_sha1 = ctx;
1733 67fd6849 2022-02-13 stsp 	csum.output_crc = NULL;
1734 67fd6849 2022-02-13 stsp 
1735 67fd6849 2022-02-13 stsp 	m->off = ftello(packfile);
1736 67fd6849 2022-02-13 stsp 	if (m->delta_len == 0) {
1737 67fd6849 2022-02-13 stsp 		err = got_object_raw_open(&raw, outfd, repo, &m->id);
1738 67fd6849 2022-02-13 stsp 		if (err)
1739 67fd6849 2022-02-13 stsp 			goto done;
1740 67fd6849 2022-02-13 stsp 		err = packhdr(&nh, buf, sizeof(buf),
1741 67fd6849 2022-02-13 stsp 		    m->obj_type, raw->size);
1742 67fd6849 2022-02-13 stsp 		if (err)
1743 67fd6849 2022-02-13 stsp 			goto done;
1744 67fd6849 2022-02-13 stsp 		err = hwrite(packfile, buf, nh, ctx);
1745 67fd6849 2022-02-13 stsp 		if (err)
1746 67fd6849 2022-02-13 stsp 			goto done;
1747 67fd6849 2022-02-13 stsp 		*packfile_size += nh;
1748 67fd6849 2022-02-13 stsp 		if (raw->f == NULL) {
1749 67fd6849 2022-02-13 stsp 			err = got_deflate_to_file_mmap(&outlen,
1750 67fd6849 2022-02-13 stsp 			    raw->data + raw->hdrlen, 0, raw->size,
1751 67fd6849 2022-02-13 stsp 			    packfile, &csum);
1752 67fd6849 2022-02-13 stsp 			if (err)
1753 67fd6849 2022-02-13 stsp 				goto done;
1754 67fd6849 2022-02-13 stsp 		} else {
1755 67fd6849 2022-02-13 stsp 			if (fseeko(raw->f, raw->hdrlen, SEEK_SET)
1756 67fd6849 2022-02-13 stsp 			    == -1) {
1757 67fd6849 2022-02-13 stsp 				err = got_error_from_errno("fseeko");
1758 67fd6849 2022-02-13 stsp 				goto done;
1759 67fd6849 2022-02-13 stsp 			}
1760 67fd6849 2022-02-13 stsp 			err = got_deflate_to_file(&outlen, raw->f,
1761 67fd6849 2022-02-13 stsp 			    raw->size, packfile, &csum);
1762 67fd6849 2022-02-13 stsp 			if (err)
1763 67fd6849 2022-02-13 stsp 				goto done;
1764 67fd6849 2022-02-13 stsp 		}
1765 67fd6849 2022-02-13 stsp 		*packfile_size += outlen;
1766 67fd6849 2022-02-13 stsp 		got_object_raw_close(raw);
1767 67fd6849 2022-02-13 stsp 		raw = NULL;
1768 67fd6849 2022-02-13 stsp 	} else if (m->delta_buf) {
1769 67fd6849 2022-02-13 stsp 		err = deltahdr(packfile_size, ctx, packfile, m);
1770 67fd6849 2022-02-13 stsp 		if (err)
1771 67fd6849 2022-02-13 stsp 			goto done;
1772 2d9e6abf 2022-05-04 stsp 		err = hwrite(packfile, m->delta_buf,
1773 2d9e6abf 2022-05-04 stsp 		    m->delta_compressed_len, ctx);
1774 67fd6849 2022-02-13 stsp 		if (err)
1775 67fd6849 2022-02-13 stsp 			goto done;
1776 2d9e6abf 2022-05-04 stsp 		*packfile_size += m->delta_compressed_len;
1777 67fd6849 2022-02-13 stsp 		free(m->delta_buf);
1778 67fd6849 2022-02-13 stsp 		m->delta_buf = NULL;
1779 67fd6849 2022-02-13 stsp 	} else {
1780 67fd6849 2022-02-13 stsp 		if (fseeko(delta_cache, m->delta_offset, SEEK_SET)
1781 67fd6849 2022-02-13 stsp 		    == -1) {
1782 67fd6849 2022-02-13 stsp 			err = got_error_from_errno("fseeko");
1783 67fd6849 2022-02-13 stsp 			goto done;
1784 67fd6849 2022-02-13 stsp 		}
1785 67fd6849 2022-02-13 stsp 		err = deltahdr(packfile_size, ctx, packfile, m);
1786 67fd6849 2022-02-13 stsp 		if (err)
1787 67fd6849 2022-02-13 stsp 			goto done;
1788 2d9e6abf 2022-05-04 stsp 		err = hcopy(delta_cache, packfile,
1789 2d9e6abf 2022-05-04 stsp 		    m->delta_compressed_len, ctx);
1790 67fd6849 2022-02-13 stsp 		if (err)
1791 67fd6849 2022-02-13 stsp 			goto done;
1792 2d9e6abf 2022-05-04 stsp 		*packfile_size += m->delta_compressed_len;
1793 67fd6849 2022-02-13 stsp 	}
1794 67fd6849 2022-02-13 stsp done:
1795 67fd6849 2022-02-13 stsp 	if (raw)
1796 67fd6849 2022-02-13 stsp 		got_object_raw_close(raw);
1797 67fd6849 2022-02-13 stsp 	return err;
1798 67fd6849 2022-02-13 stsp }
1799 67fd6849 2022-02-13 stsp 
1800 67fd6849 2022-02-13 stsp static const struct got_error *
1801 74881701 2021-10-15 stsp genpack(uint8_t *pack_sha1, FILE *packfile, FILE *delta_cache,
1802 67fd6849 2022-02-13 stsp     struct got_pack_meta **deltify, int ndeltify,
1803 67fd6849 2022-02-13 stsp     struct got_pack_meta **reuse, int nreuse,
1804 b8af7c06 2022-03-15 stsp     int ncolored, int nfound, int ntrees, int nours,
1805 b8af7c06 2022-03-15 stsp     struct got_repository *repo,
1806 05118f5a 2021-06-22 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
1807 211cfef0 2022-01-05 stsp     struct got_ratelimit *rl,
1808 05118f5a 2021-06-22 stsp     got_cancel_cb cancel_cb, void *cancel_arg)
1809 e6bcace5 2021-06-22 stsp {
1810 e6bcace5 2021-06-22 stsp 	const struct got_error *err = NULL;
1811 67fd6849 2022-02-13 stsp 	int i;
1812 e6bcace5 2021-06-22 stsp 	SHA1_CTX ctx;
1813 e6bcace5 2021-06-22 stsp 	struct got_pack_meta *m;
1814 08347b73 2021-10-14 stsp 	char buf[32];
1815 72840534 2022-01-19 stsp 	size_t n;
1816 67fd6849 2022-02-13 stsp 	off_t packfile_size = 0;
1817 cc7a354a 2021-10-15 stsp 	int outfd = -1;
1818 e6bcace5 2021-06-22 stsp 
1819 e6bcace5 2021-06-22 stsp 	SHA1Init(&ctx);
1820 e6bcace5 2021-06-22 stsp 
1821 e6bcace5 2021-06-22 stsp 	err = hwrite(packfile, "PACK", 4, &ctx);
1822 e6bcace5 2021-06-22 stsp 	if (err)
1823 e6bcace5 2021-06-22 stsp 		return err;
1824 e6bcace5 2021-06-22 stsp 	putbe32(buf, GOT_PACKFILE_VERSION);
1825 e6bcace5 2021-06-22 stsp 	err = hwrite(packfile, buf, 4, &ctx);
1826 e6bcace5 2021-06-22 stsp 	if (err)
1827 e6bcace5 2021-06-22 stsp 		goto done;
1828 67fd6849 2022-02-13 stsp 	putbe32(buf, ndeltify + nreuse);
1829 e6bcace5 2021-06-22 stsp 	err = hwrite(packfile, buf, 4, &ctx);
1830 e6bcace5 2021-06-22 stsp 	if (err)
1831 e6bcace5 2021-06-22 stsp 		goto done;
1832 67fd6849 2022-02-13 stsp 
1833 67fd6849 2022-02-13 stsp 	qsort(deltify, ndeltify, sizeof(struct got_pack_meta *),
1834 67fd6849 2022-02-13 stsp 	    write_order_cmp);
1835 67fd6849 2022-02-13 stsp 	for (i = 0; i < ndeltify; i++) {
1836 211cfef0 2022-01-05 stsp 		err = report_progress(progress_cb, progress_arg, rl,
1837 b8af7c06 2022-03-15 stsp 		    ncolored, nfound, ntrees, packfile_size, nours,
1838 b8af7c06 2022-03-15 stsp 		    ndeltify + nreuse, ndeltify + nreuse, i);
1839 211cfef0 2022-01-05 stsp 		if (err)
1840 211cfef0 2022-01-05 stsp 			goto done;
1841 67fd6849 2022-02-13 stsp 		m = deltify[i];
1842 67fd6849 2022-02-13 stsp 		err = write_packed_object(&packfile_size, packfile,
1843 67fd6849 2022-02-13 stsp 		    delta_cache, m, &outfd, &ctx, repo);
1844 67fd6849 2022-02-13 stsp 		if (err)
1845 67fd6849 2022-02-13 stsp 			goto done;
1846 e6bcace5 2021-06-22 stsp 	}
1847 67fd6849 2022-02-13 stsp 
1848 67fd6849 2022-02-13 stsp 	qsort(reuse, nreuse, sizeof(struct got_pack_meta *),
1849 67fd6849 2022-02-13 stsp 	    reuse_write_order_cmp);
1850 67fd6849 2022-02-13 stsp 	for (i = 0; i < nreuse; i++) {
1851 67fd6849 2022-02-13 stsp 		err = report_progress(progress_cb, progress_arg, rl,
1852 b8af7c06 2022-03-15 stsp 		    ncolored, nfound, ntrees, packfile_size, nours,
1853 b8af7c06 2022-03-15 stsp 		    ndeltify + nreuse, ndeltify + nreuse, ndeltify + i);
1854 67fd6849 2022-02-13 stsp 		if (err)
1855 67fd6849 2022-02-13 stsp 			goto done;
1856 67fd6849 2022-02-13 stsp 		m = reuse[i];
1857 67fd6849 2022-02-13 stsp 		err = write_packed_object(&packfile_size, packfile,
1858 67fd6849 2022-02-13 stsp 		    delta_cache, m, &outfd, &ctx, repo);
1859 67fd6849 2022-02-13 stsp 		if (err)
1860 67fd6849 2022-02-13 stsp 			goto done;
1861 67fd6849 2022-02-13 stsp 	}
1862 67fd6849 2022-02-13 stsp 
1863 e6bcace5 2021-06-22 stsp 	SHA1Final(pack_sha1, &ctx);
1864 e6bcace5 2021-06-22 stsp 	n = fwrite(pack_sha1, 1, SHA1_DIGEST_LENGTH, packfile);
1865 e6bcace5 2021-06-22 stsp 	if (n != SHA1_DIGEST_LENGTH)
1866 e6bcace5 2021-06-22 stsp 		err = got_ferror(packfile, GOT_ERR_IO);
1867 05118f5a 2021-06-22 stsp 	packfile_size += SHA1_DIGEST_LENGTH;
1868 dc7edd42 2021-08-22 stsp 	packfile_size += sizeof(struct got_packfile_hdr);
1869 211cfef0 2022-01-05 stsp 	if (progress_cb) {
1870 b8af7c06 2022-03-15 stsp 		err = progress_cb(progress_arg, ncolored, nfound, ntrees,
1871 b8af7c06 2022-03-15 stsp 		    packfile_size, nours, ndeltify + nreuse,
1872 b8af7c06 2022-03-15 stsp 		    ndeltify + nreuse, ndeltify + nreuse);
1873 211cfef0 2022-01-05 stsp 		if (err)
1874 211cfef0 2022-01-05 stsp 			goto done;
1875 211cfef0 2022-01-05 stsp 	}
1876 e6bcace5 2021-06-22 stsp done:
1877 cc7a354a 2021-10-15 stsp 	if (outfd != -1 && close(outfd) == -1 && err == NULL)
1878 cc7a354a 2021-10-15 stsp 		err = got_error_from_errno("close");
1879 e6bcace5 2021-06-22 stsp 	return err;
1880 67fd6849 2022-02-13 stsp }
1881 67fd6849 2022-02-13 stsp 
1882 67fd6849 2022-02-13 stsp static const struct got_error *
1883 67fd6849 2022-02-13 stsp add_meta_idset_cb(struct got_object_id *id, void *data, void *arg)
1884 67fd6849 2022-02-13 stsp {
1885 67fd6849 2022-02-13 stsp 	struct got_pack_meta *m = data;
1886 67fd6849 2022-02-13 stsp 	struct got_pack_metavec *v = arg;
1887 f5e78e05 2022-05-04 stsp 
1888 f5e78e05 2022-05-04 stsp 	if (m->have_reused_delta)
1889 f5e78e05 2022-05-04 stsp 		return NULL;
1890 67fd6849 2022-02-13 stsp 
1891 67fd6849 2022-02-13 stsp 	return add_meta(m, v);
1892 67fd6849 2022-02-13 stsp }
1893 67fd6849 2022-02-13 stsp 
1894 e6bcace5 2021-06-22 stsp const struct got_error *
1895 e6bcace5 2021-06-22 stsp got_pack_create(uint8_t *packsha1, FILE *packfile,
1896 e6bcace5 2021-06-22 stsp     struct got_object_id **theirs, int ntheirs,
1897 e6bcace5 2021-06-22 stsp     struct got_object_id **ours, int nours,
1898 f8a36e22 2021-08-26 stsp     struct got_repository *repo, int loose_obj_only, int allow_empty,
1899 05118f5a 2021-06-22 stsp     got_pack_progress_cb progress_cb, void *progress_arg,
1900 05118f5a 2021-06-22 stsp     got_cancel_cb cancel_cb, void *cancel_arg)
1901 e6bcace5 2021-06-22 stsp {
1902 e6bcace5 2021-06-22 stsp 	const struct got_error *err;
1903 67fd6849 2022-02-13 stsp 	int delta_cache_fd = -1;
1904 74881701 2021-10-15 stsp 	FILE *delta_cache = NULL;
1905 67fd6849 2022-02-13 stsp 	struct got_object_idset *idset;
1906 211cfef0 2022-01-05 stsp 	struct got_ratelimit rl;
1907 67fd6849 2022-02-13 stsp 	struct got_pack_metavec deltify, reuse;
1908 b8af7c06 2022-03-15 stsp 	int ncolored = 0, nfound = 0, ntrees = 0;
1909 f5e78e05 2022-05-04 stsp 	size_t ndeltify;
1910 e6bcace5 2021-06-22 stsp 
1911 67fd6849 2022-02-13 stsp 	memset(&deltify, 0, sizeof(deltify));
1912 67fd6849 2022-02-13 stsp 	memset(&reuse, 0, sizeof(reuse));
1913 67fd6849 2022-02-13 stsp 
1914 211cfef0 2022-01-05 stsp 	got_ratelimit_init(&rl, 0, 500);
1915 211cfef0 2022-01-05 stsp 
1916 67fd6849 2022-02-13 stsp 	idset = got_object_idset_alloc();
1917 67fd6849 2022-02-13 stsp 	if (idset == NULL)
1918 67fd6849 2022-02-13 stsp 		return got_error_from_errno("got_object_idset_alloc");
1919 67fd6849 2022-02-13 stsp 
1920 b8af7c06 2022-03-15 stsp 	err = load_object_ids(&ncolored, &nfound, &ntrees, idset, theirs,
1921 b8af7c06 2022-03-15 stsp 	    ntheirs, ours, nours, repo, loose_obj_only,
1922 b8af7c06 2022-03-15 stsp 	    progress_cb, progress_arg, &rl, cancel_cb, cancel_arg);
1923 e6bcace5 2021-06-22 stsp 	if (err)
1924 e6bcace5 2021-06-22 stsp 		return err;
1925 e6bcace5 2021-06-22 stsp 
1926 28526235 2022-02-13 stsp 	if (progress_cb) {
1927 b8af7c06 2022-03-15 stsp 		err = progress_cb(progress_arg, ncolored, nfound, ntrees,
1928 b8af7c06 2022-03-15 stsp 		    0L, nours, got_object_idset_num_elements(idset), 0, 0);
1929 28526235 2022-02-13 stsp 		if (err)
1930 28526235 2022-02-13 stsp 			goto done;
1931 28526235 2022-02-13 stsp 	}
1932 28526235 2022-02-13 stsp 
1933 67fd6849 2022-02-13 stsp 	if (got_object_idset_num_elements(idset) == 0 && !allow_empty) {
1934 05118f5a 2021-06-22 stsp 		err = got_error(GOT_ERR_CANNOT_PACK);
1935 05118f5a 2021-06-22 stsp 		goto done;
1936 05118f5a 2021-06-22 stsp 	}
1937 74881701 2021-10-15 stsp 
1938 67fd6849 2022-02-13 stsp 	delta_cache_fd = got_opentempfd();
1939 67fd6849 2022-02-13 stsp 	if (delta_cache_fd == -1) {
1940 74881701 2021-10-15 stsp 		err = got_error_from_errno("got_opentemp");
1941 74881701 2021-10-15 stsp 		goto done;
1942 74881701 2021-10-15 stsp 	}
1943 74881701 2021-10-15 stsp 
1944 67fd6849 2022-02-13 stsp 	reuse.metasz = 64;
1945 67fd6849 2022-02-13 stsp 	reuse.meta = calloc(reuse.metasz,
1946 67fd6849 2022-02-13 stsp 	    sizeof(struct got_pack_meta *));
1947 67fd6849 2022-02-13 stsp 	if (reuse.meta == NULL) {
1948 67fd6849 2022-02-13 stsp 		err = got_error_from_errno("calloc");
1949 67fd6849 2022-02-13 stsp 		goto done;
1950 67fd6849 2022-02-13 stsp 	}
1951 67fd6849 2022-02-13 stsp 
1952 b8af7c06 2022-03-15 stsp 	err = search_deltas(&reuse, idset, delta_cache_fd, ncolored, nfound,
1953 b8af7c06 2022-03-15 stsp 	    ntrees, nours, repo, progress_cb, progress_arg, &rl,
1954 b8af7c06 2022-03-15 stsp 	    cancel_cb, cancel_arg);
1955 67fd6849 2022-02-13 stsp 	if (err)
1956 67fd6849 2022-02-13 stsp 		goto done;
1957 67fd6849 2022-02-13 stsp 
1958 67fd6849 2022-02-13 stsp 	delta_cache = fdopen(delta_cache_fd, "a+");
1959 67fd6849 2022-02-13 stsp 	if (delta_cache == NULL) {
1960 67fd6849 2022-02-13 stsp 		err = got_error_from_errno("fdopen");
1961 67fd6849 2022-02-13 stsp 		goto done;
1962 67fd6849 2022-02-13 stsp 	}
1963 67fd6849 2022-02-13 stsp 	delta_cache_fd = -1;
1964 67fd6849 2022-02-13 stsp 
1965 67fd6849 2022-02-13 stsp 	if (fseeko(delta_cache, 0L, SEEK_END) == -1) {
1966 67fd6849 2022-02-13 stsp 		err = got_error_from_errno("fseeko");
1967 67fd6849 2022-02-13 stsp 		goto done;
1968 67fd6849 2022-02-13 stsp 	}
1969 67fd6849 2022-02-13 stsp 
1970 f5e78e05 2022-05-04 stsp 	ndeltify = got_object_idset_num_elements(idset) - reuse.nmeta;
1971 f5e78e05 2022-05-04 stsp 	if (ndeltify > 0) {
1972 f5e78e05 2022-05-04 stsp 		deltify.meta = calloc(ndeltify, sizeof(struct got_pack_meta *));
1973 f5e78e05 2022-05-04 stsp 		if (deltify.meta == NULL) {
1974 f5e78e05 2022-05-04 stsp 			err = got_error_from_errno("calloc");
1975 f5e78e05 2022-05-04 stsp 			goto done;
1976 f5e78e05 2022-05-04 stsp 		}
1977 f5e78e05 2022-05-04 stsp 		deltify.metasz = ndeltify;
1978 67fd6849 2022-02-13 stsp 
1979 f5e78e05 2022-05-04 stsp 		err = got_object_idset_for_each(idset, add_meta_idset_cb,
1980 f5e78e05 2022-05-04 stsp 		    &deltify);
1981 f8a36e22 2021-08-26 stsp 		if (err)
1982 f8a36e22 2021-08-26 stsp 			goto done;
1983 f5e78e05 2022-05-04 stsp 		if (deltify.nmeta > 0) {
1984 f5e78e05 2022-05-04 stsp 			err = pick_deltas(deltify.meta, deltify.nmeta,
1985 f5e78e05 2022-05-04 stsp 			    ncolored, nfound, ntrees, nours, reuse.nmeta,
1986 f5e78e05 2022-05-04 stsp 			    delta_cache, repo, progress_cb, progress_arg, &rl,
1987 f5e78e05 2022-05-04 stsp 			    cancel_cb, cancel_arg);
1988 f5e78e05 2022-05-04 stsp 			if (err)
1989 f5e78e05 2022-05-04 stsp 				goto done;
1990 f5e78e05 2022-05-04 stsp 		}
1991 f8a36e22 2021-08-26 stsp 	}
1992 e6bcace5 2021-06-22 stsp 
1993 2d9e6abf 2022-05-04 stsp 	if (fflush(delta_cache) == EOF) {
1994 2d9e6abf 2022-05-04 stsp 		err = got_error_from_errno("fflush");
1995 2d9e6abf 2022-05-04 stsp 		goto done;
1996 2d9e6abf 2022-05-04 stsp 	}
1997 67fd6849 2022-02-13 stsp 	err = genpack(packsha1, packfile, delta_cache, deltify.meta,
1998 b8af7c06 2022-03-15 stsp 	    deltify.nmeta, reuse.meta, reuse.nmeta, ncolored, nfound, ntrees,
1999 b8af7c06 2022-03-15 stsp 	    nours, repo, progress_cb, progress_arg, &rl,
2000 b8af7c06 2022-03-15 stsp 	    cancel_cb, cancel_arg);
2001 e6bcace5 2021-06-22 stsp 	if (err)
2002 e6bcace5 2021-06-22 stsp 		goto done;
2003 e6bcace5 2021-06-22 stsp done:
2004 67fd6849 2022-02-13 stsp 	free_nmeta(deltify.meta, deltify.nmeta);
2005 67fd6849 2022-02-13 stsp 	free_nmeta(reuse.meta, reuse.nmeta);
2006 67fd6849 2022-02-13 stsp 	got_object_idset_free(idset);
2007 67fd6849 2022-02-13 stsp 	if (delta_cache_fd != -1 && close(delta_cache_fd) == -1 && err == NULL)
2008 67fd6849 2022-02-13 stsp 		err = got_error_from_errno("close");
2009 74881701 2021-10-15 stsp 	if (delta_cache && fclose(delta_cache) == EOF && err == NULL)
2010 74881701 2021-10-15 stsp 		err = got_error_from_errno("fclose");
2011 e6bcace5 2021-06-22 stsp 	return err;
2012 e6bcace5 2021-06-22 stsp }