Send patches - preferably formatted by git format-patch - to patches at archlinux32 dot org.
summaryrefslogtreecommitdiff
path: root/lib/libalpm/add.c
blob: 2c883f10adcb881dc9e1f329cbc27c4d5cda3efa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
/*
 *  add.c
 * 
 *  Copyright (c) 2002-2005 by Judd Vinet <jvinet@zeroflux.org>
 * 
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
 *  USA.
 */

#include "config.h"
#include <stdlib.h>
#include <errno.h>
#include <time.h>
#include <fcntl.h>
#include <string.h>
#include <zlib.h>
#include <libtar.h>
/* pacman */
#include "util.h"
#include "error.h"
#include "list.h"
#include "cache.h"
#include "rpmvercmp.h"
#include "md5.h"
#include "log.h"
#include "backup.h"
#include "package.h"
#include "db.h"
#include "provide.h"
#include "trans.h"
#include "deps.h"
#include "add.h"
#include "remove.h"
#include "handle.h"

extern pmhandle_t *handle;

int add_loadtarget(pmdb_t *db, pmtrans_t *trans, char *name)
{
	pmpkg_t *info, *dummy;
	PMList *j;

	ASSERT(db != NULL, PM_RET_ERR(PM_ERR_DB_NULL, -1));
	ASSERT(trans != NULL, PM_RET_ERR(PM_ERR_TRANS_NULL, -1));
	ASSERT(name != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1));

	/* ORE
	load_pkg should be done only if pkg has to be added to the transaction */

	_alpm_log(PM_LOG_FLOW2, "reading %s...", name);
	info = pkg_load(name);
	if(info == NULL) {
		/* pm_errno is already set by pkg_load() */
		return(-1);
	}

	/* no additional hyphens in version strings */
	if(strchr(info->version, '-') != strrchr(info->version, '-')) {
		FREEPKG(info);
		pm_errno = PM_ERR_INVALID_NAME;
		return(-1);
	}

	dummy = db_get_pkgfromcache(db, info->name);
	/* only freshen this package if it is already installed and at a lesser version */
	if(trans->flags & PM_TRANS_FLAG_FRESHEN) {
		if(dummy == NULL || rpmvercmp(dummy->version, info->version) >= 0) {
			FREEPKG(info);
			PM_RET_ERR(PM_ERR_PKG_CANT_FRESH, -1);
		}
	}
	/* only install this package if it is not already installed */
	if(trans->type != PM_TRANS_TYPE_UPGRADE) {
		if(dummy) {
			FREEPKG(info);
			PM_RET_ERR(PM_ERR_PKG_INSTALLED, -1);
		}
	}

	/* check if an older version of said package is already in transaction packages.
	 * if so, replace it in the list */
	/* ORE
	we'd better do it before load_pkg. */
	for(j = trans->packages; j; j = j->next) {
		pmpkg_t *pkg = j->data;

		if(strcmp(pkg->name, info->name) != 0) {
			if(rpmvercmp(pkg->version, info->version) < 0) {
				_alpm_log(PM_LOG_WARNING, "replacing older version of %s in target list", pkg->name);
				FREEPKG(j->data);
				j->data = info;
			}
		}
	}

	/* add the package to the transaction */
	trans->packages = pm_list_add(trans->packages, info);

	return(0);
}

int add_prepare(pmdb_t *db, pmtrans_t *trans, PMList **data)
{
	PMList *lp;

	*data = NULL;

	ASSERT(db != NULL, PM_RET_ERR(PM_ERR_DB_NULL, -1));
	ASSERT(trans != NULL, PM_RET_ERR(PM_ERR_TRANS_NULL, -1));
	ASSERT(data != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1));

	/* ORE ???
	No need to check deps if pacman_add was called during a sync:
	it is already done in pacman_sync */

	/* Check dependencies
	 */

	if(!(trans->flags & PM_TRANS_FLAG_NODEPS)) {
		PMList *j;

		TRANS_CB(trans, PM_TRANS_CB_DEPS_START, NULL, NULL);

		lp = checkdeps(db, trans->type, trans->packages);
		if(lp != NULL) {
			int errorout = 0;

			/* look for unsatisfied dependencies */
			_alpm_log(PM_LOG_FLOW2, "looking for unsatisfied dependencies...");
			for(j = lp; j; j = j->next) {
				pmdepmissing_t* miss = j->data;

				if(miss->type == PM_DEP_DEPEND || miss->type == PM_DEP_REQUIRED) {
					if(!errorout) {
						errorout = 1;
					}
					if((miss = (pmdepmissing_t *)malloc(sizeof(pmdepmissing_t))) == NULL) {
						FREELIST(lp);
						/* ORE, needed or not ?
						FREELIST(*data);*/
						PM_RET_ERR(PM_ERR_MEMORY, -1);
					}
					*miss = *(pmdepmissing_t*)j->data;
					*data = pm_list_add(*data, miss);
				}
			}
			if(errorout) {
				FREELIST(lp);
				PM_RET_ERR(PM_ERR_UNSATISFIED_DEPS, -1);
			}

			/* no unsatisfied deps, so look for conflicts */
			_alpm_log(PM_LOG_FLOW2, "looking for conflicts...");
			for(j = lp; j; j = j->next) {
				pmdepmissing_t* miss = (pmdepmissing_t *)j->data;
				if(miss->type == PM_DEP_CONFLICT) {
					if(!errorout) {
						errorout = 1;
					}
					MALLOC(miss, sizeof(pmdepmissing_t));
					*miss = *(pmdepmissing_t*)j->data;
					*data = pm_list_add(*data, miss);
				}
			}
			if(errorout) {
				FREELIST(lp);
				PM_RET_ERR(PM_ERR_CONFLICTING_DEPS, -1);
			}
			FREELIST(lp);
		}

		/* re-order w.r.t. dependencies */
		_alpm_log(PM_LOG_FLOW2, "sorting by dependencies...");
		lp = sortbydeps(trans->packages);
		/* free the old alltargs */
		for(j = trans->packages; j; j = j->next) {
			j->data = NULL;
		}
		FREELIST(trans->packages);
		trans->packages = lp;

		TRANS_CB(trans, PM_TRANS_CB_DEPS_DONE, NULL, NULL);
	}

	/* Check for file conflicts
	 */
	if(!(trans->flags & PM_TRANS_FLAG_FORCE)) {
		TRANS_CB(trans, PM_TRANS_CB_CONFLICTS_START, NULL, NULL);

		lp = db_find_conflicts(db, trans->packages, handle->root);
		if(lp != NULL) {
			*data = lp;
			PM_RET_ERR(PM_ERR_FILE_CONFLICTS, -1);
		}

		TRANS_CB(trans, PM_TRANS_CB_CONFLICTS_DONE, NULL, NULL);
	}

	return(0);
}

int add_commit(pmdb_t *db, pmtrans_t *trans)
{
	int i, ret = 0, errors = 0;
	TAR *tar = NULL;
	char expath[PATH_MAX];
	time_t t;
	pmpkg_t *info = NULL;
	PMList *targ, *lp;

	ASSERT(db != NULL, PM_RET_ERR(PM_ERR_DB_NULL, -1));
	ASSERT(trans != NULL, PM_RET_ERR(PM_ERR_TRANS_NULL, -1));

	if(trans->packages == NULL) {
		return(0);
	}

	for(targ = trans->packages; targ; targ = targ->next) {
		tartype_t gztype = {
			(openfunc_t)_alpm_gzopen_frontend,
			(closefunc_t)gzclose,
			(readfunc_t)gzread,
			(writefunc_t)gzwrite
		};
		unsigned short pmo_upgrade = (trans->type == PM_TRANS_TYPE_UPGRADE) ? 1 : 0;
		char pm_install[PATH_MAX];
		pmpkg_t *oldpkg = NULL;
		info = (pmpkg_t *)targ->data;
		errors = 0;

		/* see if this is an upgrade.  if so, remove the old package first */
		if(pmo_upgrade) {
			if(pkg_isin(info, db_get_pkgcache(db))) {
				TRANS_CB(trans, PM_TRANS_CB_UPGRADE_START, info, NULL);

				/* we'll need the full record for backup checks later */
				if((oldpkg = db_scan(db, info->name, INFRQ_ALL)) != NULL) {
					pmtrans_t *tr;

					_alpm_log(PM_LOG_FLOW2, "removing old package first...\n");
					/* ORE
					set flags to something, but what (nodeps?) ??? */
					tr = trans_new();
					if(tr == NULL) {
						PM_RET_ERR(PM_ERR_TRANS_ABORT, -1);
					}
					if(trans_init(tr, PM_TRANS_TYPE_UPGRADE, 0, NULL) == -1) {
						FREETRANS(tr);
						PM_RET_ERR(PM_ERR_TRANS_ABORT, -1);
					}
					if(remove_loadtarget(db, tr, info->name) == -1) {
						FREETRANS(tr);
						PM_RET_ERR(PM_ERR_TRANS_ABORT, -1);
					}
					if(remove_commit(db, tr) == -1) {
						FREETRANS(tr);
						PM_RET_ERR(PM_ERR_TRANS_ABORT, -1);
					}
					FREETRANS(tr);
				}
			} else {
				/* no previous package version is installed, so this is actually just an
				 * install
				 */
				pmo_upgrade = 0;
			}
		}
		if(!pmo_upgrade) {
			TRANS_CB(trans, PM_TRANS_CB_ADD_START, info, NULL);
		}

		/* Add the package to the database */
		t = time(NULL);

		/* Update the requiredby field by scaning the whole database 
		 * looking for packages depending on the package to add */
		for(lp = db_get_pkgcache(db); lp; lp = lp->next) {
			pmpkg_t *tmpp = NULL;
			PMList *tmppm = NULL;

			tmpp = db_scan(db, ((pmpkg_t *)lp->data)->name, INFRQ_DEPENDS);
			if(tmpp == NULL) {
				continue;
			}
			for(tmppm = tmpp->depends; tmppm; tmppm = tmppm->next) {
				pmdepend_t depend;
				splitdep(tmppm->data, &depend);
				if(tmppm->data && !strcmp(depend.name, info->name)) {
					info->requiredby = pm_list_add(info->requiredby, strdup(tmpp->name));
					continue;
				}
			}
		}

		_alpm_log(PM_LOG_FLOW2, "updating database...");
		/* Figure out whether this package was installed explicitly by the user
		 * or installed as a dependency for another package
		 */
		/* ORE
		info->reason = PM_PKG_REASON_EXPLICIT;
		if(pm_list_is_strin(dependonly, info->data)) {
			info->reason = PM_PKG_REASON_DEPEND;
		}*/
		/* make an install date (in UTC) */
		strncpy(info->installdate, asctime(gmtime(&t)), sizeof(info->installdate));
		if(db_write(db, info, INFRQ_ALL)) {
			_alpm_log(PM_LOG_ERROR, "could not update database for %s", info->name);
			alpm_logaction(NULL, "error updating database for %s!", info->name);
			PM_RET_ERR(PM_ERR_DB_WRITE, -1);
		}

		/* update dependency packages' REQUIREDBY fields */
		for(lp = info->depends; lp; lp = lp->next) {
			pmpkg_t *depinfo = NULL;
			pmdepend_t depend;

			splitdep(lp->data, &depend);
			depinfo = db_scan(db, depend.name, INFRQ_DESC|INFRQ_DEPENDS);
			if(depinfo == NULL) {
				/* look for a provides package */
				PMList *provides = _alpm_db_whatprovides(db, depend.name);
				if(provides) {
					/* use the first one */
					depinfo = db_scan(db, ((pmpkg_t *)provides->data)->name, INFRQ_DEPENDS);
					if(depinfo == NULL) {
						PMList *lp;
						/* wtf */
						for(lp = provides; lp; lp = lp->next) {
							lp->data = NULL;
						}
						pm_list_free(provides);
						continue;
					}
				} else {
					continue;
				}
			}
			depinfo->requiredby = pm_list_add(depinfo->requiredby, strdup(info->name));
			db_write(db, depinfo, INFRQ_DEPENDS);
			FREEPKG(depinfo);
		}

		/* Extract the .tar.gz package */
		if(tar_open(&tar, info->data, &gztype, O_RDONLY, 0, TAR_GNU) == -1) {
			PM_RET_ERR(PM_ERR_PKG_OPEN, -1);
		}
		_alpm_log(PM_LOG_DEBUG, "extracting files...");
		for(i = 0; !th_read(tar); i++) {
			int nb = 0;
			int notouch = 0;
			char *md5_orig = NULL;
			char pathname[PATH_MAX];
			struct stat buf;

			strncpy(pathname, th_get_pathname(tar), PATH_MAX);

			if(!strcmp(pathname, ".PKGINFO") || !strcmp(pathname, ".FILELIST")) {
				tar_skip_regfile(tar);
				continue;
			}

			if(!strcmp(pathname, "._install") || !strcmp(pathname, ".INSTALL")) {
				/* the install script goes inside the db */
				snprintf(expath, PATH_MAX, "%s/%s-%s/install", db->path, info->name, info->version);
			} else {
				/* build the new pathname relative to handle->root */
				snprintf(expath, PATH_MAX, "%s%s", handle->root, pathname);
			}

			if(!stat(expath, &buf) && !S_ISDIR(buf.st_mode)) {
				/* file already exists */
				if(pm_list_is_strin(pathname, handle->noupgrade)) {
					notouch = 1;
				} else {
					if(!pmo_upgrade || oldpkg == NULL) {
						nb = pm_list_is_strin(pathname, info->backup) ? 1 : 0;
					} else {
						/* op == PM_UPGRADE */
						if((md5_orig = _alpm_needbackup(pathname, oldpkg->backup)) != 0) {
							nb = 1;
						}
					}
				}
			}

			if(nb) {
				char *temp;
				char *md5_local, *md5_pkg;

				md5_local = MDFile(expath);
				/* extract the package's version to a temporary file and md5 it */
				temp = strdup("/tmp/pacman_XXXXXX");
				mkstemp(temp);
				if(tar_extract_file(tar, temp)) {
					alpm_logaction("could not extract %s: %s", pathname, strerror(errno));
					errors++;
					continue;
				}
				md5_pkg = MDFile(temp);
				/* append the new md5 hash to it's respective entry in info->backup
				 * (it will be the new orginal)
				 */
				for(lp = info->backup; lp; lp = lp->next) {
					char *fn;

					if(!lp->data) continue;
					if(!strcmp((char*)lp->data, pathname)) {
						/* 32 for the hash, 1 for the terminating NULL, and 1 for the tab delimiter */
						MALLOC(fn, strlen(lp->data)+34);
						sprintf(fn, "%s\t%s", (char*)lp->data, md5_pkg);
						FREE(lp->data);
						lp->data = fn;
					}
				}

				_alpm_log(PM_LOG_FLOW2, " checking md5 hashes for %s", expath);
				_alpm_log(PM_LOG_FLOW2, " current:  %s", md5_local);
				_alpm_log(PM_LOG_FLOW2, " new:      %s", md5_pkg);
				if(md5_orig) {
					_alpm_log(PM_LOG_FLOW2, " original: %s", md5_orig);
				}

				if(!pmo_upgrade) {
					/* PM_ADD */

					/* if a file already exists with a different md5 hash,
					 * then we rename it to a .pacorig extension and continue */
					if(strcmp(md5_local, md5_pkg)) {
						char newpath[PATH_MAX];
						snprintf(newpath, PATH_MAX, "%s.pacorig", expath);
						if(rename(expath, newpath)) {
							_alpm_log(PM_LOG_ERROR, "could not rename %s: %s", expath, strerror(errno));
							alpm_logaction("error: could not rename %s: %s", expath, strerror(errno));
						}
						if(_alpm_copyfile(temp, expath)) {
							_alpm_log(PM_LOG_ERROR, "could not copy %s to %s: %s", temp, expath, strerror(errno));
							alpm_logaction("error: could not copy %s to %s: %s", temp, expath, strerror(errno));
							errors++;
						} else {
							_alpm_log(PM_LOG_WARNING, "warning: %s saved as %s", expath, newpath);
							alpm_logaction("warning: %s saved as %s", expath, newpath);
						}
					}
				} else if(md5_orig) {
					/* PM_UPGRADE */
					int installnew = 0;

					/* the fun part */
					if(!strcmp(md5_orig, md5_local)) {
						if(!strcmp(md5_local, md5_pkg)) {
							_alpm_log(PM_LOG_FLOW2, " action: installing new file");
							installnew = 1;
						} else {
							_alpm_log(PM_LOG_FLOW2, " action: installing new file");
							installnew = 1;
						}
					} else if(!strcmp(md5_orig, md5_pkg)) {
						_alpm_log(PM_LOG_FLOW2, " action: leaving existing file in place");
					} else if(!strcmp(md5_local, md5_pkg)) {
						_alpm_log(PM_LOG_FLOW2, " action: installing new file");
						installnew = 1;
					} else {
						char newpath[PATH_MAX];
						_alpm_log(PM_LOG_FLOW2, " action: saving current file and installing new one");
						installnew = 1;
						snprintf(newpath, PATH_MAX, "%s.pacsave", expath);
						if(rename(expath, newpath)) {
							_alpm_log(PM_LOG_ERROR, "could not rename %s: %s", expath, strerror(errno));
							alpm_logaction("error: could not rename %s: %s", expath, strerror(errno));
						} else {
							_alpm_log(PM_LOG_WARNING, "warning: %s saved as %s", expath, newpath);
							alpm_logaction("warning: %s saved as %s", expath, newpath);
						}
					}

					if(installnew) {
						/*_alpm_log(PM_LOG_FLOW2, " %s", expath);*/
						if(_alpm_copyfile(temp, expath)) {
							_alpm_log(PM_LOG_ERROR, "could not copy %s to %s: %s", temp, expath, strerror(errno));
							errors++;
						}
					}
				}

				FREE(md5_local);
				FREE(md5_pkg);
				FREE(md5_orig);
				unlink(temp);
				FREE(temp);
			} else {
				if(!notouch) {
					_alpm_log(PM_LOG_FLOW2, "%s", pathname);
				} else {
					_alpm_log(PM_LOG_FLOW2, "%s is in NoUpgrade - skipping", pathname);
					strncat(expath, ".pacnew", PATH_MAX);
					_alpm_log(PM_LOG_WARNING, "warning: extracting %s%s as %s", handle->root, pathname, expath);
					alpm_logaction("warning: extracting %s%s as %s", handle->root, pathname, expath);
					tar_skip_regfile(tar);
				}
				if(trans->flags & PM_TRANS_FLAG_FORCE) {
					/* if FORCE was used, then unlink() each file (whether it's there
					 * or not) before extracting.  this prevents the old "Text file busy"
					 * error that crops up if one tries to --force a glibc or pacman
					 * upgrade.
					 */
					unlink(expath);
				}
				if(tar_extract_file(tar, expath)) {
					_alpm_log(PM_LOG_ERROR, "could not extract %s: %s", pathname, strerror(errno));
					alpm_logaction("could not extract %s: %s", pathname, strerror(errno));
					errors++;
				}
				/* calculate an md5 hash if this is in info->backup */
				for(lp = info->backup; lp; lp = lp->next) {
					char *fn, *md5;
					char path[PATH_MAX];

					if(!lp->data) continue;
					if(!strcmp((char*)lp->data, pathname)) {
						snprintf(path, PATH_MAX, "%s%s", handle->root, (char*)lp->data);
						md5 = MDFile(path);
						/* 32 for the hash, 1 for the terminating NULL, and 1 for the tab delimiter */
						MALLOC(fn, strlen(lp->data)+34);
						sprintf(fn, "%s\t%s", (char*)lp->data, md5);
						FREE(lp->data);
						lp->data = fn;
					}
				}
			}
		}
		tar_close(tar);

		if(errors) {
			ret = 1;
			_alpm_log(PM_LOG_ERROR, "errors occurred while %s %s",
				(pmo_upgrade ? "upgrading" : "installing"), info->name);
			alpm_logaction("errors occurred while %s %s",
				(pmo_upgrade ? "upgrading" : "installing"), info->name);
		}

		/* run the post-install script if it exists  */
		snprintf(pm_install, PATH_MAX, "%s%s/%s/%s-%s/install", handle->root, handle->dbpath, db->treename, info->name, info->version);
		if(pmo_upgrade) {
			_alpm_runscriptlet(handle->root, pm_install, "post_upgrade", info->version, oldpkg ? oldpkg->version : NULL);
		} else {
			_alpm_runscriptlet(handle->root, pm_install, "post_install", info->version, NULL);
		}

		if(pmo_upgrade && oldpkg) {
			TRANS_CB(trans, PM_TRANS_CB_UPGRADE_DONE, info, NULL);
			alpm_logaction("upgraded %s (%s -> %s)", info->name,
				oldpkg->version, info->version);
		} else {
			TRANS_CB(trans, PM_TRANS_CB_ADD_DONE, info, NULL);
			alpm_logaction("installed %s (%s)", info->name, info->version);
		}

		FREEPKG(oldpkg);
	}

	/* run ldconfig if it exists */
	_alpm_log(PM_LOG_FLOW2, "running \"%ssbin/ldconfig -r %s\"", handle->root, handle->root);
	_alpm_ldconfig(handle->root);

	return(0);
}

/* vim: set ts=2 sw=2 noet: */